bmcs spec 09-03-07

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Project Title: Financial Tower Project Location: Ho Chi Minh, Vietnam Client: Bitexco Document Title: Building Management Control System Specification

Document Number: 17800/DS/Sp/ Building Management Control System Document Revision: DD/P1 09/03/2007 - DRAFT Originator: dsa Engineering

Project Number: 06.10350.00

Bitexco Financial Tower, Ho Chi Minh City

Building Management Control System Specification

TABLE OF CONTENTS

dsa Ref: 06.10350.00 TABLE OF CONTENTS- 1 of 1X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\BMCSTOC.doc January 2007

TABLE OF CONTENTS SECTION TITLE 17800 General Provisions 17801 Scope of Work for BMCS 17803 Operating & Maintenance 17863 Electric Motor Starters 17864 Motor Control Centres 17865 Variable Frequency Controllers 17900 Building Management 17902 Points of Schedule

Bitexco Financial Tower, Ho Chi Minh City Mechanical and Public Health Services Specification Section – BMCS General Provisions

dsa Ref: 06.10350.00 17800 - 1 of 20X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17800 - General Provisions.doc 9 March 2007

SECTION 17800 – Building Management and Control System General Provisions ------------------------------- PART 100 - GENERAL -------------------------------

1.1 RELATED SECTIONS

1.1.1. The General and Supplementary Conditions are a part of the requirements for the work under this Division of the Specifications.

1.1.2. This section applies to all Division 17 sections.

1.2 SUMMARY

1.2.1. Division 17 of the Specifications requires the furnishing and installing of all items, including every article, device or accessory (whether or not specifically called for by item) reasonably necessary to facilitate each system’s functioning as indicated by the design and the equipment specified. Elements of the Work include, but are not limited to, materials, labour, supervision, supplies, equipment, transportation, storage, utilities and all required permits, licenses, fees and royalties.

1.3 QUALITY ASSURANCE

1.3.1. The building management and control system installation shall be of the highest quality in accordance with the standards as specified and shall conform to:

1.3.1.1. The HCMC Building Regulations 1.3.1.2. Wiring Regulations for Electrical Installations, BS 7671,

sixteenth edition, published by the Institution of Electrical Engineers including all amendments to the above, as and when issued.

1.3.1.3. The 2003 International Building Code (IBC)

1.3.1.4. Requirements of the Gas and Water statutory authorities,

Local Authority and Insurance Companies concerned.

1.3.1.5. Relevant British, European and International Standards and/or Codes of Practice for materials and equipment and methods of installation not specifically covered by the 2003 IBC.

1.3.2 Should any change in Drawings or Specifications be required to comply

with governmental regulations, the Contractor shall notify the Construction Administrator prior to execution of the Work. The work shall be carried out according to the requirements of such code in accordance



with the instruction of the Construction Administrator and at no additional cost to the Client.

1.3.3 The provisions of Standards, Codes, Laws, Ordinances, etc., shall be

considered minimum requirements. In case of conflict between their published requirements, the Construction Administrator shall determine which is to be followed and his decision shall be binding. Specific requirements of this specification and/or the drawings which exceed the published requirements shall take precedence over them.

1.3.4 Execute work in strict accordance with the best practices of the trades in

a thorough, substantial, workmanlike manner by competent workmen. Provide a competent, experienced, full-time Superintendent who is authorised to make decisions on behalf of the Contractor.

1.4 DEFINITIONS

1.4.1. Use the following definitions for discernment within the Drawings and Specifications.

1.4.1.1. “PROVIDE” means to supply, purchase, transport, place,

erect, connect, test and turn over to Client, complete and ready for regular operation, the particular work referred to.

1.4.1.2. “INSTALL” means to move from property line, set in place,

join, unite, fasten, link, attach, set up or otherwise connect together before testing and turning over to Client of equipment supplied under another division. Installation to be complete and ready for regular operation, the particular work referred to.

1.4.1.3. “FURNISH” means to supply all materials, labour, equipment,

testing apparatus, controls, tests, accessories and all other items customarily required for the proper and complete application for the particular work referred to.

1.4.1.4. “WIRING” means the inclusion of all wire ways, fittings,

conductors, connectors and outlet boxes, connections, joints and all other items necessary and/or required in connection with such work.

1.4.1.5. “CONDUIT” means the inclusion of all fittings, hangers,

supports, sleeves, etc.

1.4.1.6. “AS DIRECTED” means as directed by the Contract Administrator, or his representative.

1.4.1.7. “CONCEALED” means embedded in masonry or other

construction, installed behind wall furring or within double partitions, or installed within hung ceilings.

1.5 ABBREVIATIONS

1.5.1. MCC Motor Control Centre



1.5.2. EMCC Emergency Motor Control Centre 1.5.3. FCC Fire Control Centre 1.5.4. IEE Institute of Electrical Engineers 1.5.5. BS British Standards 1.5.6. CIBSE Chartered Institute of Building Services Engineers 1.5.7. BMCS Building Management and Control System

1.6 GUARANTEE

1.6.1. Submit a single guarantee stating that the work is in accordance with the Contract Documents. Guarantee work against faulty and improper material and workmanship for a period of one year from the date of issue of the Architects Certificate of practical completion, except that where guarantees or warranties for longer terms are provided or specified herein, the longer term shall apply. Correct any deficiencies which occur during the guarantee period, within 24 hours of notification, without additional cost to the Owner, to the satisfaction of the Owner. Obtain similar guarantees from subcontractors, manufacturers, suppliers and sub-trade specialists.

1.7 SUBSTITUTIONS

1.7.1. Contract Documents are based on equipment manufacturers as called out in the Specifications and indicated on the Drawings. Acceptance of substitute equipment manufacturers does not relieve Contractor of the responsibility to provide equipment and materials that meet the performance as stated or implied in the Contract Documents. Submit proposals to provide substitute materials or equipment, in writing, with sufficient time for review prior to the date equipment must be ordered to maintain project schedule. Reimburse Owner for costs associated with the review of the proposed substitution whether substitution is accepted or rejected.

1.7.2. Indicate revisions required to adapt substitutions including revisions by

other trades. Substitutions that increase the cost of the work and related trades are not permitted.

1.7.3. The proposed substitution shall conform to the size, ratings, and

operating characteristics of the equipment or systems as specified and shown on the Drawings.

1.7.4. Proposals for substitutions shall include the following information:

1.7.4.1. A description of the difference between the Contract

Document requirements and that of the substitution, the



comparative features of each and the effect of the change on the end result performance. Include the impact of all changes on other contractors and acknowledge the inclusion of additional costs to the other trades.

1.7.4.2. Schematic drawings and details.

1.7.4.3. List of revisions to the Contract Documents that must be made

if the substitution is accepted.

1.7.4.4. Estimate of costs the Owner may incur in implementing the substitution, such as test, evaluation, operating and support costs.

1.7.4.5. Statement of the time by which a Contract modification

accepting the substitution must be issued, noting any effect on the Contract completion time or the delivery schedule.

1.7.4.6. A statement indicating the reduction to the Contract price if the

Owner accepts the substitution. Include required modifications to all related trades.

1.8 SUBMITTALS AND REVIEWS

1.8.1. Submit co-ordinated installation drawings, manufacturer’s shop drawings, and product data sheets, samples, and test reports as specified.

1.8.1.1. Following notice to proceed by the Contract Administrator

include the following on the construction schedule to ensure submittals are provided in a timely manner.

1.8.1.2. Within one month after notice to proceed by the Contract

Administrator, submit a complete typed list of all electrical equipment manufacturers and material suppliers for the equipment proposed to be provided on this project, as well as names of all subcontractors.

1.8.1.3. Within one month after notice to proceed by Contract

Administrator, prepare an index of all submittals for the project. Include a submittal identification number, a cross-reference to the Specification sections or Drawing number, and an item description. Prefix the submittal identification number by the Specification sections to which they apply. Indicate on each submittal, the submittal identification number in addition to the other data specified.

1.8.1.4. After the Contract is awarded, obtain complete shop drawings,

product data and samples from the manufacturers, suppliers, vendors, and all subcontractors, for all materials and equipment as specified. Submit data and details of such materials and equipment for review. Prior to submission, certify that the shop drawings, product data and samples are in compliance with the Contract Documents. Check all



materials and equipment upon their arrival on the job site and verify their compliance with the Contract Documents. Modify any work which proceeds prior to receiving accepted shop drawings as required to comply with the Contract Documents and the shop drawings.

1.8.1.5. A minimum period of ten working days, exclusive of transmittal

time, will be required in the Engineer’s office each time a shop drawing, product data and/or samples are submitted for review.

1.8.1.6. Submit three prints of all drawings. Submit three copies of

manufacturer’s product submittals.

1.8.1.7. The work described in shop drawing submissions shall be carefully checked by all trades for clearances (including those required for maintenance and servicing), field conditions, maintenance of architectural conditions and co-ordination with other trades on the job. Each submitted shop drawing shall include a certification that related job conditions have been checked by the Contractor and each Subcontractor and that conflicts do not exist.

1.8.2. Review of submittals is for general compliance with the design concept

and Contract Documents. Comments or absence of comments shall not relieve the Contractor from compliance with the Contract Documents. The Contractor remains solely responsible for details and accuracy, for confirming and correlating all quantities and dimensions, for selecting fabrication processes, for techniques of construction, for performing the work in s a safe manner, and for co-ordinating the work with that of other trades. The Contractor is not relieved of the responsibility for dimensions or errors that may be contained on submissions, or for deviations from the requirements of the Contract Documents.



1.8.3. Submittals will be stamped as follows:

Status Stamp Interpretation

A No Exceptions Noted Fabrication, manufacture, or construction may proceed providing submittal complies with the Contract Documents.

B Exceptions Noted Fabrication, manufacture, or construction may proceed providing submittal complies with the Contract Documents and the Contract Administrator’s notations are complied with.

C Revise and Resubmit The submittal does not comply with the Contract Documents; do not proceed with fabrication, manufacture, or construction. The work and shop drawings are not permitted at the job site. Resubmit appropriate shop drawings

1.8.4. Submittals shall be provided in the following format:

1.8.4.1. Identify each sheet or printed submittal pages (using arrows, underlining or circling) to show applicable sizes, types, model numbers, ratings, capacities and options actually being proposed. Cross out non-applicable information. Note all options specified or provided.

1.8.4.2. Submit materials and equipment by specification section

number, manufacturer, trade name, and model number. Include copies of applicable brochure or catalogue material.

1.8.4.3. Include dimensional data for roughing in and installation and

technical data sufficient to verify that equipment meets the requirements of the Contract Documents. Include wiring, piping and service connection data.

1.8.4.4. Inadequate or incomplete shop drawings, product data and /or

samples will not be reviewed and will be returned to the Contractor for re-submittal.

1.8.4.5. Unless the above information is included, the submittal will be

returned for re-submission. Re-submittals of product data or brochures shall include a cover letter summarising the corrections made in response to the review comments.



1.8.5. Maintain a complete set of reviewed and stamped shop drawings and product data on site.

1.8.6. Indicate the following on the lower right hand corner of each shop drawing

and on the front cover of each product data brochure cover:

1.8.6.1. The submittal identification number; 1.8.6.2. Title of the sheet or brochure;

1.8.6.3. Name and location of the project;

1.8.6.4. Names of the Architect, Engineer, Contractor, Subcontractor,

manufacturer, supplier and vendor;

1.8.6.5. The date of submittal; and the date of each correction.

1.8.6.6. Version and revision.

1.8.6.7. Number all pages and drawings in product data brochures consecutively from beginning to end.

1.9. CO-ORDINATED INSTALLATION DRAWINGS

1.9.1. The Contractor shall submit co-ordinated installation drawings, showing the services that form the Contract and co-ordinated with all other trades.

1.9.2. Drawings shall show all critical dimensions, including dimensions for

pipework, ductwork, plant and equipment.

1.9.3. Drawings shall generally be to the scale listed below:

1.9.3.1. General layout and component location drawing of each floor level, showing sizes and dimensions, etc – Scale 1:50.

1.9.3.2. Plantroom layouts, elevations, and sections showing sizes,

dimensions, etc. – Scale 1:20.

1.9.3.3. Sections and elevations of ceiling voids, floor voids, partitions and risers to clearly identify the installation and proposed co-ordination of services – Scale 1:20.

1.9.3.4. For large areas of horizontal plumbing layouts – scale 1:100

drawing.

1.9.4. For each room or area of the building containing electrical equipment, submit the following:

1.9.4.1. Floor Plans: Plan and elevation layout drawings indicating the

equipment in the exact location in which it is intended to be installed. These plans shall be of a scale not less than 1:20. They shall be prepared in the following manner:



19.4.1.1. Indicate the physical boundaries of the space including door swings and ceiling heights and ceiling types (as applicable).

19.4.1.2. Illustrate all mechanical equipment proposed to be

contained therein. Include top and bottom elevations of all mechanical equipment. The Drawings shall be prepared utilising the dimensions contained in the individual equipment submittals. Indicate code and manufacturer’s required clearances.

19.4.1.3. Illustrate all other equipment therein such as

pipework, ductwork, diffusers, terminal units, structural elements, etc.

19.4.1.4. Indicate the operating weight of each piece of

equipment.

19.4.1.5. Illustrate concrete plinths.

19.4.1.6. Indicate maximum normal allowable operating temperature for each piece of equipment (as per each respective manufacturer’s recommendation).

19.4.1.7. Equipment removal routes.

1.9.5. Submittals are required for review and co-ordination of all services. 1.9.6. In preparing the Co-ordinated Installation Drawings the Contractor shall

take full account of the latest structural and architectural drawings and any relevant drawings by other Contractors. The Contractor shall make any adjustments to services equipment and layout necessary to comply with variations included upon the structural and architectural drawings and any design costs associated with such variations shall be included as an integral part of the Contract Works.

1.9.7. The Contractor shall be responsible for preparing all working detail and

fabrication drawings as necessary for the execution of the works.

1.9.8. Drawings shall be in the latest release of AutoCad. The contractor shall obtain from the Contract Administrator a complete set of construction drawings in AutoCad format including current building backgrounds. The contractor shall base co-ordinated installation drawings on the Construction drawings and any amendments.

1.9.9. Provide dimensioned drawings in plan and elevation showing required all

cast in place brackets, unistrut etc.

1.10 PROGRESS DRAWINGS



1.10.1. Keep on site a complete set of all reviewed plans marked up showing progress, and incorporating any changes to the work agreed through RFI’s and instructions or required for site co-ordination.

1.10.2. Maintain on a daily basis at the project site a complete set of reviewed

installation drawings, marked up to show progress and to reflect an accurate dimensional record of deviations between work shown on Drawings and that actually installed. The drawings shall also indicate areas where instructions for changes have been made. If necessary site plans should be periodically updated to incorporate major revisions so that the work can be clearly identified.

1.10.3. Record dimensions clearly and accurately to delineate the work as

installed; suitably identify locations of all equipment by at least two dimensions to permanent structures. In addition, mark the progress drawings to show the precise location of concealed work and equipment, including concealed or embedded raceways and cables and all changes and deviations in the electrical work form that shown on the Contract Documents. This requirement shall not be constructed as authorisation to make changes in the layout or work.

1.10.4. The as built drawings shall be readily available on site to the Contract

Administrator.

1.11. RECORD DRAWINGS

1.11.1. Upon completion of the installation obtain from the Contract Administrator a complete set of AutoCad files with current building backgrounds. Update the drawings in the latest AutoCad format using recognised layering and drawing standards and based on the site as built information and marked up site plans. Provide a complete record of all revisions of the original drawings, as actually installed. The cost for making required changes shall be included in the Contract. After review, make necessary changes to files and then deliver them to the Owner together with a CD-ROM of all bound AutoCad files. The Record Drawings shall not be reviewed for accuracy nor will the Engineer assume any responsibility for accuracy or completeness.

1.12. TESTING AND COMMISSIONING

1.12.1. Carry out testing and commissioning of all systems as required by the individual Division 15 specifications.

1.12.2. Complete any adjustments and/or alterations which the final acceptance

tests indicate as necessary for the proper functioning of all equipment prior to the completion date.

1.12.3. Where required in individual sections, Contractor shall carry out complete

testing on systems prior to attendance of Contract Administrator and provide written confirmation that all tests have been successful.

1.12.4. Provide all materials and test equipment required for testing required to

obtain acceptable results. Testing materials that fail to provide



acceptable test results shall be repaired or replaced with suitable materials as required to obtain acceptable test results.

1.12.5. At least 2 months prior to testing including manufacturers witness testing

submit the following information:

1.12.5.1. Method statement of proposed tests. 1.12.5.2. Evidence to show that the personnel who will actually test

the systems are qualified to perform the required work.

1.12.5.3. Recording forms.

1.12.6. Include the following in the recording form:

1.12.6.1. Test performed. 1.12.6.2. Test procedure 1.12.6.3. Instruments required. 1.12.6.4. System and area tested. 1.12.6.5. Date(s) and time(s) of test. 1.12.6.6. Weather conditions. 1.12.6.7. Test criteria. 1.12.6.8. Test results. 1.12.6.9. Additional pertinent data.

1.12.7. No more than 2 weeks after testing has been completed submit 1 copy of

test results, reports and certificates including evidence that test instruments were properly calibrated at time of testing.

1.12.8. All test procedures shall be in accordance with the manufacturer’s

recommendations for the equipment being tested.

1.12.9. Provide a detailed schedule of completion indicating when each system is to be completed and outlining when field testing will be performed. Submit completion schedule for review within six months after the notice to proceed by contract administrator has been given. Update this schedule periodically as the project progresses.

1.12.10. Comply with the project construction schedule for the date of final

performance and acceptance testing, and complete work sufficiently in advance of the Contract completion date to permit the execution of the testing prior to practical completion and occupancy.

1.12.11. Where factory testing of equipment is required to ascertain

performance, and attendance by the contract administrator is required to witness such tests, associated travel costs and subsistence shall be paid for by the Contractor.

1.13 OPERATING AND MAINTENANCE MANUALS

1.13.1. Provide Operating and Maintenance Manuals for equipment and materials furnished under this Division.



1.13.2. Submit one final draft copy of Operating and Maintenance Manuals for review at least ten weeks before the completion date. Following review, incorporate comments and provide 3 final copies to the owner at or prior to the training seminar.

1.13.3. Assemble data in a completely indexed volume or volumes in four-ring

binders. Print the project name on the outside of the binders.

1.13.4. Manuals shall cover all items included in the mechanical and public health installation and shall be based on the submittals provided and reviewed.

1.13.5. Provide information including but not limited to the following:

1.13.5.1. Index of all sections and sub sections. 1.13.5.2. Description of the installation.

1.13.5.3. Comprehensive Health and Safety section detailing

maintenance and access procedures and all other Health and Safety issues.

1.13.5.4. Alphabetical list of all system components, with the name,

address, and 24-hour phone number of the company responsible for servicing each item during the first year of operation.

1.13.5.5. Operating instructions for complete system, including:

1.13.5.5.1. Normal starting, operating, and shut down. 1.13.5.5.2. Emergency procedures for fire or failure of major

equipment.

1.13.5.5.3. Maintenance instructions.

1.13.5.6 Manufacturer’s data on each piece of equipment, including (where relevant):

1.13.5.6.1. Installation instructions. 1.13.5.6.2. Shop Drawings and specifications.

1.13.5.6.3. Parts or components list, including

recommended items to be stocked.

1.13.5.6.4. Complete wiring and control diagrams.

1.13.5.6.5. Marked or revised prints locating all concealed parts and all variations from the original system design.

1.13.5.6.6. Test and inspection certificates.



1.13.5.7. List of spares recommended by the manufacturers used on the works.

1.13.5.8. Record Drawings.

1.14. OPERATING INSTRUCTIONS

1.14.1. Provide the services of factory trained specialists to provide an operating instructions seminar for equipment and systems. The seminar shall be conducted over a five day (consecutive) period. Instruction time is defined as straight time working hours and does not include nights, weekends, or travel time to and from the project.

1.14.2. Submit seminar agenda, schedule and list of representatives to

the Owner for approval thirty days prior to suggested date of seminar. Do not commence seminar until the Owner has issued a written acceptance of the starting time and attendees. Confirm attendance of seminar by written notification to participants.

1.14.3. Instruct Owner’s operating personnel in proper starting

sequences, operation, shutdown, general maintenance and preventative maintenance procedures, including normal and emergency procedures.

1.14.4. Submit final copies of Record Drawings and Operating and

Maintenance Manuals to Owner at seminar.

1.14.5. Submit a written record of minutes and attendees of the seminar to the Owner.

1.15. CO-ORDINATION OF WORK

1.15.1. The Contract Documents establish scope, materials and quality but are not detailed installation instructions. Drawings are diagrammatic.

1.15.2. Co-ordinate work with related trades and furnish, in writing, any

information necessary to permit the work of related trades to be installed satisfactorily and with the least possible conflict or delay.

1.15.3. The mechanical and public health drawings show the general

arrangement of equipment and appurtenances. Follow these drawings as closely as the actual construction and the work of other trades will permit. Provide off-sets, fittings, and accessories which may be required but not shown on the Drawings. Investigate the site, and review drawings of other trades to determine conditions affecting the work, and provide such work and accessories as may be required to accommodate such conditions.

1.15.4. Follow manufacturer’s instruction for installing, connecting, and

adjusting equipment. Submit one copy of such instructions to the



Contract Administrator before installing any equipment. Provide a copy of such instructions at the equipment during work on the equipment.

1.15.5. The locations of luminaires, outlets, panels and other equipment

indicated on the drawings are approximately correct, but they are understood to be subject to such revision as may be found necessary or desirable at the time the work is installed in consequence of increase or reduction of the number of outlets, or in order to meet field conditions, or to co-ordinate with modular requirements of ceilings, or to simplify the work, or for other legitimate causes.

1.15.6. Exercise particular cautions with reference to the location of

sensors, panels etc, and have precise and definite locations accepted by the Architect before proceeding with the installation.

1.15.7. The Drawings show only the general run of pipework, ductwork

routes etc. Any significant changes in location of routes etc, necessary in order to meet field conditions shall be brought to the immediate attention of the Architect for review before such alterations are made. Modifications shall be made at no additional cost to the Owner.

1.15.8. Verify with the Architect the exact location and mounting height of

outlets and equipment not dimensionally located on the Drawings.

1.15.9. Carefully check space requirements with other trades to insure that equipment can be installed in the spaces allotted.

1.15.10. Wherever work interconnects with work of other trades, co-

ordinate with other trades to insure that they have the information necessary so that they may properly install the necessary connections and equipment. Identify items (controls, valves, etc.) requiring access in order that the Ceiling Trade will know where to install access doors and panels.

1.15.11. Consult with other trades regarding equipment so that, wherever

possible, motor controls and distribution equipment are of the same manufacturer.

1.15.12. Furnish and set sleeves for passage of pipework through

structural masonry and concrete walls and floors and elsewhere as required for the proper protection of each pipework passing through building surfaces.

1.15.13. Provide detailed information on openings and holes required in

precast members for mechanical work.

1.15.14. Provide required supports and hangers for pipework, ductwork, equipment etc, designed so as not to exceed allowable loadings of structures.



1.15.15. Examine and compare the Contract Drawings and Specifications with the Drawings and specifications of other trades, and report any discrepancies between them to the Architect and obtain written instructions for changes necessary in the work. Install and co-ordinate the work in co-operation with other related trades. Before installation, make proper provisions to avoid interference.

1.15.16. Furnish services of an experienced Superintendent, who shall be

in constant charge of all work, and who shall co-ordinate work with the work of other trades. No work shall be installed before co-ordinating with other trades.

1.15.17. Co-ordinate with the local gas, water and sewage utility

companies as to their requirements for service connections and provide all necessary metering provisions, builderswork, materials, equipment, labour, testing and appurtenances.

1.15.18. Before commencing work, examine adjoining work on which this

work is in any way affected and report conditions which prevent performance of the work. Become thoroughly familiar with actual existing conditions to which connections must be made or which must be changed or altered.

1.15.19. Adjust location of pipework, ductwork, equipment, etc., to

accommodate the work to prevent interference, both anticipated and encountered. Determine the exact route and location of each service prior to fabrication.

1.15.20. Right-of-Way: Lines which pitch have the right-of-way over those

which do not pitch. For example: condensate, steam, and plumbing drains normally have right-of-way. Lines whose elevations cannot be changed have right-of-way over lines whose elevations can be changed.

1.15.21. Provide offsets, transitions and changes in direction of pipework,

ductwork as required to maintain proper head room and pitch on the sloping lines.

1.15.22. In cases of doubt as to the work intended, or in the event of need

for explanation, request supplementary instructions from the Architect.

1.16 EXAMINATION OF SITE

1.16.1. Prior to the submitting of bids, visit the project site and become familiar with all conditions affecting the proposed installation and make provisions as to the cost thereof.

1.16.2. The Contract Documents do not make representations regarding the

character or extent of the sub-soils, water levels, existing structural, mechanical and electrical installations, above or below ground, or other sub-surface conditions which may be encountered during the work. Evaluate existing conditions which may affect methods or cost of performing the work, based on examination of the site for other



information. Failure to examine the Drawings or other information does not relieve the Contractor of responsibility for satisfactory completion of the work.

1.17. EXCAVATION AND BACK FILL

Not Used.

1.18 CUTTING AND PATCHING

1.18.1. Where cutting, channelling, chasing or drilling or floors, walls, partitions, ceilings or other surfaces is necessary for the proper installation, support or anchorage of conduit or other equipment, layout the work carefully in advance. Repair any damage to the building, piping, equipment of defaced finished plaster, woodwork, metalwork, etc. using skilled trades people of the trades required at no additional cost to the Owner.

1.18.2. Do not cut, channel, chase or drill unfinished masonry, tile, etc, unless

permission from the Contract Administrator is obtained. If permission is granted, perform this work in a manner acceptable to the Contract Administrator.

1.18.3. Where pipework, ductwork equipment etc are mounted on a painted

finished surface, or a surface to be painted, paint to match the surface. Cold galvanise bare metal whenever support channels are cut.

1.18.4. Provide slots, chases, openings and recesses through floors, walls,

ceilings, and roofs as required. Where these openings are not provided, provide cutting and patching to accommodate penetrations at no additional cost to the Owner.

1.19. MOUNTING HEIGHTS

1.19.1. Unless otherwise noted or required because of special conditions, locate outlets as follows:

1.19.1.1. Heights listed are from finished floor to centre of device.

Verify exact locations with the Contract Administrator before installation.

1.19.1.1.1. Sensors, controllers etc: 1600m

1.19.2. Field instructions issued by the Contract Administrator take precedence

over the above list and shall be adhered to.

1.20. DEMOLITION Not used.

1.21. CLEANING UP



1.21.1. Avoid accumulation of debris, boxes, loose materials, crates, etc, resulting from the installation of this work. Remove from the premises each day all debris, boxes, etc, and keep the premises clean and free of dust and debris.

1.21.2. Clean all fixtures and equipment at the completion of the project. Wipe

clean grilles and diffusers with a non abrasive cloth just prior to occupancy.

1.21.3. All mechanical equipment shall be thoroughly vacuumed and wiped clean

prior to energisation and at the completion of the project. Equipment shall be opened for observation by the Architect as required.

1.22. WATERPROOFING

1.22.1. Avoid, if possible, the penetration of any waterproof membranes such as roofs, machine room floors, basement walls, and the like. If such penetration is necessary, make penetration prior to the waterproofing and furnish all sleeves or pitch-pockets required. Advise the Contract Administrator and obtain written permission before penetrating any waterproof membrane, even where such penetration is shown on the Drawings.

1.22.2. Restore waterproofing integrity of walls or surfaces after they have been

penetrated without additional cost to the Owner.

1.23. SUPPORTS

1.23.1. Support work in accordance with the best industry practice. Provide supports, hangers, auxiliary structural members and supplemental hardware required for support of the work.

1.23.2. Provide supporting frames or racks extending from floor slab to ceiling

slab for work indicated as being supported from walls where the walls are incapable of supporting the weight. In particular, provide such frames or racks in mechanical equipment rooms.

1.23.3. Provide supporting frames or racks for equipment which is installed in a

free standing position.

1.23.4. Supporting frames or racks shall be of standard angle, standard channel or speciality support system steel members, rigidly bolted or welded together and adequately braced to form a substantial structure. Racks shall be of ample size to assure a workmanlike arrangement of all equipment mounted on them.

1.23.5. Mechanical equipment shall not rest on or depend for support on

suspended ceiling media (tiles, lath, plaster, as well as splines, runners, bars and the like in the plane of the ceiling). Provide independent support of mechanical equipment. Do not attach to supports provided for ductwork, piping or work of other trades.



1.23.6. Provide required supports and hangers for pipework, ductwork, equipment, etc, so that loading will not exceed allowable loadings of structure. Mechanical equipment and supports shall not come in contact with work of other trades.

1.24. FASTENINGS

1.24.1. Fasten equipment to building structure in accordance with the best industry practice.

1.24.2. Where weight applied to the attachment points is 50kg or less, conform to

the following as a minimum:

1.24.2.1. Wood: Wood screws. 1.24.2.2. Concrete and solid masonry: Bolts and expansion shields.

1.24.2.3. Hollow construction: Toggle bolts.

1.24.2.4. Solid metal: Machine screws in tapped holes or with

welded studs.

1.24.2.5. Steel decking or sub-floor: Fastenings as specified below for applied weights in excess of 50kg.

1.24.3. Where weight applied to building attachment points exceeds 50kg, but is

150 kg or less, conform to the following as a minimum:

1.24.3.1. At concrete slabs provide 600 x 600 x 13mm steel fishplates on top with through bolts. Fishplate assemblies shall be chased in and grouted flush with the top of slab screed line, where no fill is to be applied.

1.24.3.2. At steel decking or sub-floor for all fastenings, provide through

bolts or threaded rods. The tops of bolts or rods shall be set at least one inch below the top fill screed line and grouted in. Suitable washers shall be used under bolt heads or nuts. In cases where the decking or sub-floor manufacturer produces speciality hangers to work with his decking or sub-floor such hangers shall be provided.

1.24.4. Where weight applied to building attachment points exceeds 150kg, co-

ordinate with and obtain the approval of Contract Administrator and conform to the following as a minimum:

1.24.5. Provide suitable auxiliary channel or angle iron bridging between building

structural steel elements to establish fastening points. Bridging members shall be suitably welded or clamped to building steel. Provide threaded rods or bolts to attach to bridging members.

1.24.6. For items which are shown as being ceiling mounted at locations where

fastening to the building construction element above is not possible,



provide suitable auxiliary channel or angle iron bridging tying to the building structural elements.

1.24.7. Wall mounted equipment may be directly secured to wall by means of

steel bolts. Groups or arrays of equipment may be mounted on adequately sized steel angles, channels, or bars. Prefabricated steel channels as manufactured by Kindorf or Unistrut are acceptable.

1.24.8. All bolts and nuts used shall be hexagonal to metric standards and truly

faced washers shall be provided under all nuts and screws.

1.25. IDENTIFICATION

1.25.1. Identify electrical equipment with permanently attached black phenolic nameplates with 6mm high white engraved lettering. Identification shall include equipment name or load served as appropriate. Nameplates for equipment connected to the emergency power system shall be red with white lettering. Nameplates shall be attached with cadmium plated screws; peel and stick tape or glue on type nameplates is unacceptable.

1.25.2. Refer to relevant sections for details of pipework, ductwork, and

equipment identification requirements.

1.26. PROHIBITED LABELS AND IDENTIFICATION

1.26.1. Prohibited Markings: In all public areas, tenant areas and similar locations within the project, the inclusion or installation of any item, element or assembly which bears on any exposed surface any name, trademark, or other insignia which is intended to identify the manufacturer, the vendor, or other source(s) from which such object has been obtained, is prohibited. Also prohibited is the inclusion or installation of any article which bears visible evidence that an insignia, name, label, or other device has been removed.

1.26.2. Exception: Required approval labels and/or certificates of testing

laboratories shall not be removed nor shall identification specifically required under the various technical sections of the Specifications be removed.

1.27 PLINTHS AND ANCHOR BOLTS

1.27.1. Plinths for all floor mounted equipment will be furnished by the appropriate Trade Contractor to details prepared by the Mechanical Contractor. Equipment plinths shall conform to the shape of the piece of equipment and supports. Where drawout devices are provided, the plinths shall extend to allow for these devices to be withdrawn. Where the plinths are extended across a path of equipment removal, provide ramps as required. Plinths shall be a minimum of 100mm high and made of a minimum 28 days, 2500psi concrete reinforced with 150mm x 150mm 6/6 gauge welded wire mesh. Tops and sides of plinths shall be trowelled to smooth finishes, equal to those of the floors, with all external corners bullnosed to a 20mm radius.



1.27.2. Furnish and install galvanised anchor bolts for all equipment placed on concrete equipment plinths or on concrete slabs. Bolts shall be the size and number recommended by the Manufacturer of the equipment and shall be located by means of suitable templates.

1.28. DELIVERY, DRAYAGE AND HAULING

1.28.1. Provide drayage, hauling, hoisting, shoring and placement in the building of equipment specified and be responsible for the timely delivery and installation of equipment as required by the construction schedule. If any item of equipment is received prior to the time that it is required, the Contractor shall be responsible for its proper storage and protection until the time it is required. Pay for all costs of demurrage or storage.

1.28.2. If equipment is not delivered or installed at the project site in a timely

manner as required by the project construction schedule, the Contractor shall be responsible for resulting disassembly, re-assembly, manufacturer’s supervision, shoring, general construction modification, delays, overtime costs, etc. at no additional cost to the owner.

1.29. EQUIPMENT AND MATERIAL PROTECTION

1.29.1. Protect the work, equipment, and material of other trades from damage by work or workmen of this trade, and correct damage caused without additional cost to the Owner.

1.29.2. Take responsibility for work, materials, and equipment until finally

inspected, tested and accepted. Protect work against theft, injury, or damage, and carefully store material and equipment received on site which is not immediately installed. Close open ends of work with temporary covers or plugs during construction to prevent entry of obstructing material. Cover and protect equipment and materials from damage due to water, spray-on fireproofing, construction debris, etc. Store equipment to moisture damage in dry, heated spaces.

1.29.3. Provided adequate means for fully protecting finished parts of materials

and equipment against damage from whatever cause during the progress of the work until final acceptance. Protect materials and equipment in storage and during construction in such a manner that no finished surfaces will be damaged or marred, and moving parts are kept clean and dry. Do not install damaged items; take immediate steps to obtain replacement or repair.

1.30. FINAL PUNCHLIST

1.30.1. Prior to the Final Punchlist, certify that systems and equipment are complete, operational, and are in compliance with the Contract Documents.

1.30.2. During the Final Punchlist, provide personnel with access keys, hand held

radios, and necessary expertise to operate each system and piece of equipment to demonstrate operation compliance with the Contract Documents.



1.30.3. Any deficiencies noted on the Final Punchlist shall be expeditiously

corrected and certified in writing.

1.31. EARLY OCCUPANCY

1.31.1 Complete those systems which are necessary to allow partial early occupancy of the building.

1.31.2 Verify and comply with requirements for temporary occupancy with the

local Building and Fire Departments. ------------------------------- PART 200 – PRODUCTS -------------------------------

2.1. EQUIPMENT AND MATERIALS

2.1.1. Individual sections detail the particular requirements for equipment and materials.

2.1.2. Provide products and materials that are new, clean, free of defects, and

free of damage and corrosion.

2.1.3. Products and materials shall not contain asbestos, PCB, or any other material which is considered hazardous.

2.1.4. Replace materials of less than specified quality and relocate work

incorrectly installed as directed by the Architect.

2.1.5. Maintain uniformity of manufacturer for equipment used in similar applications and sizes.

2.1.6. Equipment capacities, ratings, etc, are scheduled or specified for job site

operating conditions. Equipment sensitive to altitude shall be de-rated with the method of de-rating identified on the submittals.

2.1.7. Enclosures for electrical equipment installed outdoors shall be IP 55

protected. --------------------------------- PART 300 – EXECUTION ---------------------------------

3.1. GENERAL

3.1.1. Refer to individual sections for requirements for execution of the work.

END OF SECTION

Bitexco Financial Tower, Ho Chi Minh City Mechanical and Public Health Services Specification Section- BMCS General Scope of Work

dsa Ref: 06.10350.00 17801 - 1 of 2X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17801 - Scope of Work for BMCS.doc 9 March 2007

SECTION 17801 - BMCS General Scope of Work -------------------------------- PART 100 - GENERAL -------------------------------- 1.1 WORK INCLUDED

1.1.1 This section describes the general scope of work for the Building Management and Control Systems for the Mechanical, Electrical, Public Health and Fire Protection services to be provided for this project. Provide all labour, materials, equipment, services, facilities, tools and work necessary to provide a fully operational control system as indicated on the Mechanical and Electrical Services Specifications and Drawings and specified herein.

This Specification details the complete building control system requirements and is

not necessarily limited to the scope of work for the BMCS sub-contractor. Any control works that fall outside of the BMCS sub-contractors scope shall be provided by the Mechanical Contractor unless noted otherwise.

1.1.1.1 Provide a complete software package to monitor and control all systems

as described herein and indicated on the Mechanical and Electrical Services drawings and the Mechanical and Public Health Services Specification and the Electrical Services Specification.

1.1.1.2 Provide all BMCS front end hardware including PC’s, printers, UPS,

furniture for PC equipment, and control system equipment including outstations, controllers, sensors, actuators and motors, interface units etc.

1.1.1.3 Provide all Motor Control Centres and Variable Frequency Controllers.

Power to all Motor Control Centres and from Motor Control Centres to equipment will be provided by the Electrical Services Contractor. Power wiring below 230 volts, i.e. 12 or 24 volts, shall be provided by the BMCS Contractor.

1.1.1.4 Provide all controls wiring and containment systems for the complete

system. Containment for controls and data cabling is not required for routes in ceiling voids. For all other areas controls and data cabling is to be run in steel conduit.

1.1.1.5 Provide facilities for a modem link or similar to enable the BMCS to be

linked to an external monitoring facility.

1.1.1.6 Provide commissioning of all BMCS systems including assistance to the Mechanical and Electrical Services Contractors during their commissioning operations.

1.1.1.7 Provision of coordinated installation drawings and specifications for

comment/approval by the Design Team. Provision of Operating and Maintenance Manuals, Record Drawings and Commissioning Data in accordance with Section 17803 of this specification.

Bitexco Financial Tower, Ho Chi Minh City Mechanical and Public Health Services Specification Section- BMCS General Scope of Work

dsa Ref: 06.10350.00 17801 - 2 of 2X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17801 - Scope of Work for BMCS.doc 9 March 2007

1.1.1.8 Full demonstration of all control system operations and software/graphics packages to the Design Team/Client. Provide full training of the clients nominated Building Management personnel. Include any offsite training required.

1.1.1.9 Install duct sensors required for the operation of the automatic Building

Management Controls System. Install automatic dampers and sensors.

1.1.1.10 Maintenance kits for each plant.

1.1.1.11 Identification of systems.

1.1.1.12 The successful Contractor will be required to submit, prior to commencing work, a clause by clause compliance with this section of Mechanical and Public Health Services Specification.

1.2 WORK NOT INCLUDED

1.2.1 The items listed below are specified under other divisions of the works.

1.2.1.1 Finish painting.

1.2.1.2 Masonry pits, frames and covers.

1.2.1.3 Outdoor intake and discharge louvres construction.

1.2.1.4 Concrete for mechanical work.

1.2.1.5 Power wiring to and from motor control centres. Power wiring to motorised dampers etc where 230 volts.

----------------------------------- PART 200 - PRODUCTS ----------------------------------- 2.1 NOT USED ------------------------------------ PART 300 - EXECUTION ------------------------------------ 3.1 NOT USED

END OF SECTION

Bitexco Financial Tower, Ho Chi Minh City Mechanical and Public Health Services Specification Section – Operating and Maintenance Instructions

dsa Ref: 06.10350.00 17803 - 1 of 3X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17803 - Operating & Maintenance.doc January 2007

SECTION 17803 – Operating and Maintenance Instructions -------------------------------- PART 100 - GENERAL --------------------------------

1.1 GENERAL

1.1.1 The Contractor shall issue a first draft of all relevant printed (ie non word processed information) manufacturers operation and maintenance information in accordance with a programme to be issued by the Contract Administrator. Once commented upon by the team, the Contractor shall be responsible for scanning this information into an accepted bitmap computer image (.TIF, .PCX, .GIF etc.) and issued via a transferable bulk storage format (Zip-Drive, Syquest EZ Drive etc.).

1.1.2 The Contractor shall issue all typed O&M information in Microsoft Word

processor format on CD-ROM and on paper.

1.1.3 The Contractor shall issue all typed commissioning information in Microsoft Excel format on CD-ROM and on paper.

1.1.4 The Contractor shall issue all record drawing information in AutoCAD

Release 14 format on CD-ROM and on paper.

1.2 WORK INCLUDED

1.2.1 Work of this Section includes all labour, materials, equipment and services necessary to complete the operating and maintenance instructions as shown on the drawings and specified herein, including, but not limited to, the following:

1.2.1.1 Operating and maintenance instructions manual including

operating instructions, maintenance instructions, manufacturer's data, specific equipment data.

1.2.1.2 Instruction of operating personnel.

1.3 SUBMITTALS

1.2.2 Submit operating and maintenance manuals for review by the Consultancy Engineer.

1.2.3 Paper issues of the manuals to be "A4" size in hard-back, 4 ring loose

leaf binders. Use more than one volume if required. Do not overfill binders. Also provide a disk copy of any word processing included within manuals.

1.2.4 Four sets of approved manuals and drawings to be completed and

delivered at least 10 days prior to instruction of operating personnel.

1.2.5 Prepare separate manuals for the following systems:



1.2.5.1 Software programmes

1.2.5.2 Wiring Diagrams

1.2.5.3 Equipment /systems layouts

1.2.5.4 Graphics

1.2.5.5 Commissioning Data ----------------------------------- PART 200 - PRODUCTS ----------------------------------- 2.1 NOT USED ------------------------------------ PART 300 - EXECUTION ------------------------------------ 3.1 OPERATING AND MAINTENANCE INFORMATION

3.1.1 The Contractor shall obtain from all Manufacturer’s, four sets of operating and/or maintenance instructions and certified drawings for the plant and equipment used and issue this information to the team.

3.1.2 Provide information including, but not limited to, the following:

3.1.2.1 Alphabetical list of all system components, with the name,

address, and 24-hour phone number of the company responsible for servicing each item during the first year of operation.

3.1.2.2 Operating instructions for complete system, including:

3.1.2.2.1 Normal starting, operating, and shut-down

3.1.2.2.2 Emergency procedures for fire or failure of major equipment

3.1.2.2.3 Summer and winter special procedures

3.1.2.2.4 Day and night special procedures

3.1.2.3 Maintenance instructions, including:

3.1.2.3.1 Valve tag list and equipment tag list

3.1.2.3.2 Proper lubricants and lubricating instructions for each piece of equipment, and date when lubricated.



3.1.2.3.3 Required cleaning, replacement and/or adjustment schedule.

3.1.2.4 Manufacturer's Data on Each Piece of Equipment, including:

3.1.2.4.1 Installation instructions.

3.1.2.4.2 Drawings and specifications.

3.1.2.4.3 Parts list, including recommended items to be stocked.

3.1.2.4.4 Complete wiring and temperature control diagrams.

3.1.2.4.5 Marked or revised prints locating all concealed parts and all variations from the original system design.

3.1.2.4.6 Test and inspection certificates.

3.1.2.4.7 Maintenance requirements.

3.1.2.5 For Automatic Controls covered in works provide the following:

3.1.2.5.1 Drawings and description of system controlled.

3.1.2.5.2 Sequence of operation for each system.

3.1.2.5.3 Data on components.

3.1.2.5.4 Wiring and piping, schematic and layout, for panels and panel boards.

3.1.2.5.5 System operating manual, including set points.

3.1.2.5.6 Provide list of spares recommended by the manufacturers used on the works.

3.2 MAINTENANCE INSTRUCTIONS

3.2.1 Instruct Client's operating personnel in proper starting sequences,

operation, shutdown, and maintenance procedures, including normal and emergency procedures prior to practical completion. Instruction to be by personnel skilled in operation of equipment. Instructions for major equipment to be by equipment manufacturers' representatives.

3.2.2 Make arrangements to give instructions by system and not by building

areas.

END OF SECTION


Mechanical and Public Services Specification Section 17863 – Electric Motor Starters

dsa Ref: 06.10350.00 17863- 1 of 3X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17863 - Electric Motor Starters.doc January 2007

SECTION 17863 – ELECTRIC MOTOR STARTERS

-------------------------------- PART 100 - GENERAL --------------------------------

1.1 WORK INCLUDED

1.1.1 Work of this Section includes all labour, materials, equipment and services necessary to complete the electric motor starters as shown on the drawings and specified herein, including, but not limited to, the following:

1.1.1.1 Individual motor starters.

1.1.1.2 Isolators.

1.1.2 RELATED WORK SPECIFIED IN OTHER SECTIONS

1.1.2.1 Electric Motors Section 15862

1.1.2.2 Motor Control Centres Section 15864

1.2 SUBMITTALS

1.2.1 Shop Drawings:

1.2.1.1 Submit shop drawings and manufacturer's data for the individual motor starters in accordance with the conditions of the contract.

1.3 STANDARDS

1.3.1 Except as modified by governing codes and the Contract Documents, comply with the applicable provisions and recommendations of the following.

1.3.1.1 Motor Starters: Comply with BS587, BS4951, BS5856, IEC 292, IEC 632.

1.3.1.2 Isolators: Comply with BS5253 and IEC 129.

---------------------------------- PART 200 - PRODUCTS ----------------------------------

2.1 APPROVED MANUFACTURERS

2.1.1 ABB

2.1.2 Bowers Electrical

2.1.3 Merlin Gerin




2.2 GENERAL

2.2.1 All electric motor starters to be of one manufacturer.

2.3 INDIVIDUAL MOTOR STARTERS

2.3.1 Provide suitable fully co-ordinated starting and controlling equipment for motors as required. Arrange the starting equipment as indicated in other sections of these specifications.

2.3.2 Consult with each trade affected to determine the exact requirements for each device. Co-ordinate with automatic temperature control contractor to establish required auxiliaries, including relays, contacts, terminals and the like.

2.3.3 Provide individual starters fully enclosed in neatly finished ventilated steel boxes, machine formed and welded. Provide boxes arranged for floor, wall or angle iron frame mounting including a door with a spring catch handle with facility to lock handle in open position.

2.3.4 Provide engraved nameplates for each unit, nomenclature of each to be approved prior to fabrication.

2.3.5 Provide starters for motors less than 0.37 kW, to be 230 volt, 1-phase, 50 cycle, alternating current service with pilot light. Provide manual starters with overload protection and lockout type isolator to control such motor, except where interlocks or automatic controls are required. In such cases, provide magnetic across-the-line starters.

2.3.6 Provide starters for motors 0.37 kW to 45 kW to be magnetic across-the-line, combination type fused disconnect switch. Such starters to be 400 volt, 3-phase, 50 cycle, alternating current service. Provide each starter with a set of approved Fusetron or Merlin Gerin dual element fuses.

2.3.7 Provide starters for motors over 45 kW to be magnetic, combination reduced voltage auto transformer with fused isolators. Such starters to be 400 volt, 3-phase, 50 cycle, alternating current service.

2.3.8 Provide magnetic starters subject to manual start and in direct view of the motors they control with momentary contact start and stop buttons built into cover. Provide magnetic starters subject to electrical interlock or automatic control with Hand-Off-Automatic switches built into cover. Provide selector switches in starters to be of the maintain-contact type.

2.3.9 Provide starters with a pilot light built into cover.

2.3.10 Provide starters for service at voltages higher than 230 volt with transformers for 230 volt secondary service built into each starter casing to serve control circuits.




2.3.11 Provide each starter subject to electrical interlock and/or automatic control with the necessary auxiliary contacts plus one spare set of normally open and normally closed auxiliary contacts. Provide one set of terminals for each control circuit.

2.3.12 Provide magnetic starters with thermal overload in each phase leg and low voltage protection.

2.3.13 Provide approved coils, cores, resistance, insulation, contacts, trippers, etc., for starters and relays.

2.4 ISOLATORS

2.4.1 Provide each motor with a power rated isolator.

2.4.2 Heavy-duty single throw knife switch with quick-make, quick-break

mechanism, capable of full load operations. Power rated and meeting BS5253 and IEC 129.

2.4.3 Provide with contact arc-quenching devices, such as magnetic blowouts or snuffling plates. Provide self-aligning switchblades with silver alloy contact areas and designed so that arcing upon making and breaking does not occur on the final contact surfaces. Provide with high pressure, spring-loaded contact. Mount switch parts on high grade insulating base.

2.4.4 Enclosure: Provide enclosure with multiple knockouts on sides and back, hinged doors, and cover interlock which prevents door opening when switch is in ON position and can be positively padlocked in ON and OFF positions. Utilise rain-tight enclosure for exterior installation.

2.4.5 Size, fusing, and number of poles as shown or as required. Provide power rated switch to match motor load if no size if shown. Use 3 pole plus solid neutral switches unless otherwise noted.

2.4.6 Provide nameplates on each isolator installed denoting equipment number as indicated.

----------------------------------- PART 300 - EXECUTION -----------------------------------

3.1 NOT USED.

END OF SECTION


Mechanical and Public Health Services Specification Section 17864 – Motor Control Centres

dsa Ref: 06.10350.00 17864- 1 of 5X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17864 - Motor Control Centres.doc Jaaury 2007

SECTION 17864 – MOTOR CONTROL CENTRES

----------------------------------- PART 100 - GENERAL ----------------------------------- 1.1 WORK INCLUDED

1.1.1 Work of this Section includes all labour, materials, equipment and services necessary to complete the motor control centres as shown on the drawings and specified herein.

1.1.2 RELATED WORK SPECIFIED IN OTHER SECTIONS

1.1.2.1 Electric Motors Section 15862

1.1.2.2 Electric Motor Starters Section 15863

1.2 SUBMITTALS

1.2.1 Submit shop drawings and manufacturers' data for the following items in accordance with the conditions of the contract.

1.2.1.1 Elementary control diagrams, unit wiring diagram for each motor controller, assembly outline drawings, summary sheets, shop inter-wiring diagrams, field connection diagrams, shall be submitted.

1.2.1.2 Include full detailed and dimensioned plans, section and elevations. Include information on type and size of structural supports, metal thicknesses, surface finishes, bus cross sections, provisions for lifting as well as single line diagram of switch, fuse, circuit breakers, bus bar arrangements, metering arrangements, etc.

1.2.1.3 Furnish complete schematic wiring diagrams and a full set of equipment wiring diagrams for protective equipment relays, pilot lights, alarms, controls, etc. Provide narratives for all wiring diagrams.

1.2.1.4 Include full load heat rejection in kW for total components by control centre.

1.2.1.5 All fuse/circuit breaker sizes and types must be indicated.

1.2.1.6 All nameplate information must be complete.

1.2.1.7 All concrete plinths must be sized and illustrated on co-ordinated installation drawings.

1.2.1.8 Where a control centre assembly is shipped in more than one section, show field inter-wiring required to maintain circuit continuity upon re-assembly. Clearly delineate shipping sections.




1.2.1.9 Include a statement verifying co-ordination with Division 16 (Fire Alarm System) and Automatic Controls requirements.

1.3 STANDARDS

1.3.1 Except as modified by governing codes and the Contract Documents, comply with the applicable provisions and recommendations of the following.

1.3.1.1 BS 587 type 1A

1.3.1.2 BS 5486 Part 1

1.3.1.3 BS 5424 Part 1

1.3.1.4 BS 5420 Class IP43


1.4.1 Each unit as a complete and finished product shall receive a single integrated equipment rating by the manufacturer. The integrated equipment short-circuit wiring shall certify that all equipment is capable of withstanding the thermal and magnetic stress of a fault equal to the value specified on the schedules. Such rating shall be established by actual tests by the manufacturer on similar equipment. This certification shall be permanently affixed to each motor control centre. Test data shall be submitted to the Contract Administrator at time of submission of Acceptance Drawings.

------------------------------------ PART 200 - PRODUCTS ------------------------------------ 2.1 COMPONENTS

2.1.1 Unit motor control centre to be of the dead front, multi-unit motor control centre type, consisting of an assembly of vertical stacks with each stack containing necessary cubicles to provide equipment required including space as specified or shown on the drawings. Minimum height for one module to be 300 mm and each 300 mm module to house a combination starter fused isolator, relays and/or transformer as indicated. Motor control centre to be for 400 volt, 3 phase, 3 wire, and neutral connection, ground bus, 50 Hz application. Motor control centres shall have aluminium bussing. Motor control centres to have horizontal bussing across top and vertical bussing down each stack. Main bus capacity to be as indicated on schedule, having bracing and supports suitable to withstand short circuit current up to 50,000 Amps asymmetrical. Each module of each motor control centre to be connected to the common bus by plug-in style connection stabs.




2.1.2 Each starter or isolator assembly in MCC to be mounted in tub or rack assembly of removable plug-in type with necessary bus connection stabs. Where blank starter connections are indicated, hinged section to be provided with full bussing to receive future rack assemblies. Provide wiring gutter across the top and bottom and vertically down each stack of MCC. Wire-ways to be segregated from bus bars compartments. Motor control centre components to be designed and constructed for ease of servicing and connection. Connection or terminal blocks not to be at back or rear. Overload devices to be interchangeable and to clearly indicate heater rating from exterior of device. Motor control centre to be constructed in accordance with BS 5420 CLASS IP 54 with control wiring and control terminals of each module and control wiring extended to control terminal section of MCC. Control wiring shall be in flexible cable to comply with BS 6231 Type B.

2.1.3 Unless otherwise specifically noted each magnetic motor starter in each motor control centre to have the following facilities:

2.1.3.1 Fused disconnect switch complete with HRC time delay fuses. Fuses shall be to BS 88 Part 2 Class Q1.

2.1.3.2 Contactor with three time delay overload relays.

2.1.3.3 230 volt holding coil.

2.1.3.4 Red neon type pilot light in cover.

2.1.3.5 Reset button, test-auto switch, HOA switch or stop/start pushbutton in cover. HOA switch to be of type that is field convertible to On/Off or Auto/Off.

2.1.3.6 Four (4) sets of auxiliary contacts -normally open in addition to standard auxiliary holding contacts supplied with each contactor making a total of three auxiliary contacts. Two (2) sets of auxiliary contacts to be convertible to normally closed.

2.1.3.7 Control transformer primary and secondary fusing, primary fusing to be HRC type.

2.2 VARIABLE FREQUENCY DRIVE

2.2.1 Refer to Section 15865 for detailed specification on Variable Frequency

Drives

2.3 DUTY / STANDBY CONTROLS

2.3.1 For motor pairs designed for duty and standby service provide automatic switchover controls as part of MCC. The duty and standby starters shall be in adjacent bays.




2.3.2 A duty standby selector switch shall be located on the starter most accessible to building operator and shall allow selection of the duty motor with the other motor being the standby. Install necessary controls so that when the duty fan is required to operate and fails to operate the standby fan shall automatically start and the standby fan operation contacts shall open. Provide an adjustable time delay to allow duty motor to reach full speed before testing for motor failure. A flow switch, provided and wired to the MCC terminal section, by the Automatic Controls Contractor, shall indicate proof of operation. The standby switchover controls shall be reset by stopping both fans.

2.3.3 Each starter shall be equipped with an HOA or Test-Auto control switch. The standby switchover controls shall only function when the control switch is in the automatic position.

------------------------------------- PART 300 - EXECUTION ------------------------------------- 3.1 MOTOR CONTROL CENTRE

3.1.1 Each motor control centre to contain starters and spaces as indicated. Arrange starter units and fused isolators in groupings as indicated. Cer-tain alterations will be accepted to suit a particular manufacturer's standard unit layout, however, layout of units per stack to follow that indicated. Starter units are numbered with equipment unit number identi-fication system. All cubicles to be complete with plastic engraved nametag giving motor designation or load controlled.

3.1.2 Install control centres when the area is free and clear of dust and debris. Protect control centres at the time from dust and moisture. Do not utilise control centres for temporary lighting and power services except as otherwise approved by Scient.

3.1.3 Install control centres on 100 mm high plinths which shall follow the contour of centres with 100 mm clear all around.

3.1.4 Provide channel iron sills below each control centre where the control centre frame is not suitable for use as floor.

3.2 CONTROL TERMINAL SECTION

3.2.1 Extend control wiring as indicated on typical wiring diagram from each motor control module to control terminal section. All terminals to be number coded and otherwise suitably identified to indicate which section or module of motor control centre they are associated with and their func-tion. Control wiring diagrams of each typical type with conductor identification clearly shown to be affixed to interior cover of control terminal section.

3.2.2 Control terminal section to house all controls and time delay relays associated with the mechanical system.




END OF SECTION


Mechanical and Public Health Services Specification Section 17865 – Variable Frequency Controllers

dsa Ref: 06.10350.00 17865- 1 of 7X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17865 - Variable Frequency Controllers.doc January 2007

SECTION 17865 – VARIABLE FREQUENCY CONTROLLERS --------------------------------- PART 100 - GENERAL ---------------------------------

1.1 WORK INCLUDED

1.1.1 Provide variable frequency controllers (VFC) in accordance with the

Contract Documents for the following equipment:

1.2 SUBMITTALS

1.2.1 Provide manufacturer's descriptive literature, installation instructions,

operating instructions, and maintenance and repair data.

1.2.2 Provide all electric wiring control diagrams for the VFC operation.


1.3.1 Test all integrated circuits (TTL) and all components used for circuit board construction to acceptance criteria of 0.5% AQL (Accepted Quality Level).

1.3.2 Conduct in-circuit testing of all printed circuit boards to insure proper mounting and correct value of all components.

1.3.3 Burn-in all printed circuit boards for at least 24 hours, at a minimum of 70°C, and temperature cycled.

1.3.4 Functionally test final printed circuit board assemblies via computerized test equipment where all tests and acceptance criteria are pre-programmed and test results are stored as detailed quality assurance data. The Engineer may witness the factory tests. Provide at least two (2) weeks written notice prior to start of the factory test.

1.3.5 Combine-test all fully assembled controls for performance and functionality at the manufacturer's factory with fully loaded induction motors. Analyse the combined test data to insure adherence to quality assurance specifications.

1.3.6 Design and build the variable frequency controllers to the following standards:

1.3.6.1 E.T.L. and/or U.L.

1.3.6.2 NEMA - ICS-3-303.

1.3.6.3 F.C.C. Class A.




1.3.6.4 IEEE STD 444 (ANSI C34.3).

------------------------------------ PART 200 - PRODUCTS ------------------------------------

2.1 APPROVED MANUFACTURERS

2.1.1 ABB

2.1.2 Danfoss

Or equal and approved.

2.2 GENERAL

2.2.1 The manufacturer must provide local, in-house service backup which

must include factory trained personnel specifically trained for electrical component maintenance and troubleshooting.

2.2.2 Purchase motors and variable frequency controllers from a single

source. Verify in writing that the motors and variable frequency controllers operate together as a system; fully compatible and without excessive noise or vibration.

2.3 DESIGN

2.3.1 Provide 400 VAC variable frequency controllers of the pulse width modulated (PWM) design that operates directly from three phase, 400 VAC 10%, and 50 hertz utility power. The VFC will generate a sine-coded, adjustable voltage/frequency three phase output for complete speed control of any NEMA B squirrel cage induction motor. The VFC to maintain a 120% current overload capability for 60 seconds with automatic stall prevention and voltage boost to prevent nuisance tripping during load or line side transient conditions. The VFC not to induce voltage line matching distortion back to the building electrical power supply system and to maintain a power factor of not less than 0.95 throughout its speed range. Provide a tuned line filter, adjusted as required to prevent any electrical distortion back into the building electrical power supply system. Comply with FCC Class A noise emissions standard and so label.

2.3.2 Provide the variable frequency controller with the following basic design:

2.3.2.1 Converter: Consists of a modularized diode rectifier and capacitor assembly which will first convert, then filter and maintain a fixed DC voltage source from the fixed voltage and frequency input.




2.3.2.2 Inverter: Inverter uses power transistor semiconductors with a minimum rating of 1100 VAC on 400 VAC controls to invert the converter generator fixed DC voltage into a sine-coded pulse width modulated output.

2.3.2.3 Control Logic: Consists of a single printed circuit board and incorporates an 8-bit, or larger, microcomputer central processing unit to control all inverter, converter, base drive and external interface functions.

2.3.2.4 Terminal strip for input signals from Building Management Control System for remote start/stop and speed control signal capabilities. Refer to Building Management and Control System, Section 17900 for interface and coordination.

2.3.2.5 Enclosure: NEMA 1 enclosure.

2.4 FEATURES

2.4.1 Include with the variable frequency controller the following minimum

design features as standard:

2.4.1.1 Sine-coded, pulse width modulated output.

2.4.1.2 Eight (8) bit, or larger, microcomputer control logic.

2.4.1.3 Maximum and minimum speed adjustment capability.

2.4.1.4 Controlled speed range of 20:1, or greater.

2.4.1.5 Overload capability of 20% for 60 seconds.

2.4.1.6 Process follower 4-20 mA or 1-10 VDC, input.

2.4.1.7 Minimum of three (3) selectable output frequency ranges.

2.4.1.8 Fifteen selectable volts/hertz patterns.

2.4.1.9 Touch-pad operator controls or adjustable potentiometer with at least four (4) segment digital frequency/speedometer or digital readout displaying: output frequency, status, percent current, and percent response signal.

2.4.1.10 Input disconnect/circuit breaker with thru-door handle.

2.4.1.11 Torque or current limiting circuit.

2.4.1.12 Coast or ramp to stop.

2.4.1.13 Electronic reversing.

2.4.1.14 Adjustable acceleration and deceleration.




2.4.1.15 Fault indicators.

2.4.1.16 Fault contacts for interface with Building Management and Control System, Section 17900.

2.4.1.17 External start/stop signal capability from the building control system.

2.4.1.18 External speed control from a 4-20 mA or 0-10 VDC signal from control system.

2.4.1.19 Automatic bypass facility where one VFC controls run and standby equipment. Bypass to be complete with soft start.

2.4.2 Provide the variable frequency controller with the following protective

features as a minimum:

2.4.2.1 Ground fault protection.

2.4.2.2 Electronic thermal motor overload or current limit control.

2.4.2.3 Current limited stall prevention during acceleration, deceleration, and run conditions.

2.4.2.4 Automatic restart, after momentary power loss or momentary over-voltage. No restart into ground fault.

2.4.2.5 Controls for start into a rotating motor.

2.4.2.6 Anti-windmill protection.

2.4.2.7 Fault indicators shall indicate the following fault conditions:

2.4.2.7.1 Over-current

2.4.2.7.2 Overload

2.4.2.7.3 Over-voltage

2.4.2.7.4 Over-temperature

2.4.2.7.5 Control function error.

2.4.2.8 DC bus discharge indicator.

2.4.2.9 Current limiting DC bus fuse.

2.4.2.10 Isolated operator controls.

2.4.2.11 Phase-to-phase short circuit protection.




2.4.2.12 Heat sink over-temperature protection.

2.4.3 Make the following adjustments available on all variable frequency controllers:

2.4.3.1 Acceleration - 0.2 to 1800 seconds or 0.1 to 300 seconds.

2.4.3.2 Deceleration - 0.2 to 1800 seconds or 0.1 to 300 seconds.

2.4.3.3 Volts/hertz adjustments.

2.4.3.4 Maximum frequency range.

2.4.3.5 Minimum frequency.

2.4.3.6 Maximum frequency.

2.4.3.7 Carrier frequency.

2.4.3.8 Torque limit.

2.4.3.9 The inverter supplier to provide line filters on the line to prevent interference from the line to the drive and prevent any electrical harmonic distortion back to the building electrical power supply system.

2.4.3.10 Provide a signal isolator to isolate the control signal to and from the inverter drive.

2.4.4 Provide the variable frequency controller with the following additional features:

2.4.4.1 One (1) door interlocked main power input disconnect circuit breaker to provide positive shutdown of all input power to the drive.

2.4.4.2 The complete circuit breaker and overload relay package shall be mounted in the inverter cabinet or may also be available in its own separate enclosure adjacent to the inverter.

2.4.4.3 2200 Microfarad ride-through capacitor which shall provide assistance to maintain the D.C. bus voltage for a two-second momentary power loss or furnish automatic restart capability which allows restart into a rotating motor.

2.4.4.4 One (1) complete set of spare parts for each size inverter consisting of the following:

2.4.4.4.1 Control fuses.

2.4.4.4.2 Control board.

2.4.4.4.3 Drive board.




2.4.4.4.4 Transistors.

2.4.4.4.5 Capacitors.

2.4.5 Manual Bypass

2.4.5.1 Provide all the circuitry necessary to safely transfer the motor from the VFC to the power line, or from the line to controller at zero speed. Include a separate cabinet for the bypass circuit to house all devices which must be energized at either 480 VAC or 115 VAC.

2.4.5.2 On the bypass cabinet include a door interlocked main power input disconnect circuit breaker, providing positive shutdown of all input power to both the bypass circuitry and the AFC. Motor protection to be provided in both the "Controller" mode and the "Bypass" mode by a motor overload relay.

2.4.5.3 The bypass cabinet door to include a "Controller-Off-Bypass" selector switch and "Controller Mode" indicator light and a "Bypass Mode" indicator light. Provide terminals for remote light indication of mode selection.

2.4.5.4 Include a door interlocked input disconnect circuit breaker for the bypass circuit installed in the VFC to facilitate troubleshooting and testing of the controller safely, both energized and de-energized, while operating in the "Bypass" mode.

2.4.5.5 Factory install the manual bypass with magnetic contactors.

2.4.5.6 Controller to be constructed so as to allow power to be disconnected from either mode yet maintain power to the other mode for uninterrupted motor operation. This disconnecting means must completely isolate either mode for maintenance purposes.

2.5 ENVIRONMENT

2.5.1 Design the variable frequency controller to operate within the following

environmental and service conditions:

2.5.1.1 Ambient service temperature – 10°C to 40°C.

2.5.1.2 Ambient storage temperature – 20°C to 60°C.

2.5.1.3 Humidity – non-condensing to 90%.

2.5.1.4 Altitude to 3300 feet.

2.5.1.5 Service factor - 1.0.




2.5.1.6 Input voltage - three phase, 400 VAC 10%.

2.5.1.7 Input frequency - 50 hertz 5%.

----------------------------------- PART 300 - EXECUTION -----------------------------------

3.1 GENERAL

3.1.1 All drive components including motor, sheaves, belts, fans pumps must

have vibration levels checked at all speeds between 20 percent and 100 percent of the driven unit's design rpm. Vibration must be checked at fan pump shaft bearings in radial (vertical and horizontal) and axial directions. If excessive vibration is found at any frequency, special balancing and structural changes must be provided to minimize harmonic vibrations.

3.1.2 All variable frequency controllers to be of the free standing type complete with suitable panel enclosures to meet the same standards as the Motor Control Centres, Section 17864.

3.1.3 Where variable frequency controller panels are externally mounted, the enclosure panel shall be IP65 rated and be complete with anti-condensation heating.

END OF SECTION


Mechanical and Public Health Services Specification Section 17900 – Building Management and Control System

dsa Ref: 06.10350.00 17900- 1 of 73X:\Project Documents\2006\0610350-HCMC Full Design\3.0 Reports & Specifications\BMCS\17900 - Building Management (021206).doc 9 March 2007

SECTION 17900 – BUILDING MANAGEMENT AND CONTROL SYSTEM

-------------------------------- PART 100 - GENERAL --------------------------------

1.1 WORK INCLUDED

1.1.1 Work of this Section includes all labour, materials, equipment and services necessary for the Building Management and Controls System Sub-Contractor to provide and install a complete building management and control system (BMCS) as shown on the drawings and specified herein, including, but not limited to, the following:

1.1.1.1 Provide completely ready for operation an automatic building management and control system as described herein.

1.1.1.2 Provide a permanent Software Licence for the use of the BMCS software. The software licence shall be in the name of the Client.

1.1.1.3 Central operator’s console consisting of a central processing unit, colour graphic monitor, printer and modem.

1.1.1.4 Remote operators' consoles as specified.

1.1.1.5 Data communications necessary to affect a BMCS data transmission system.

1.1.1.6 Direct Digital Controllers (DDCs), field equipment panels, sensors, control devices, conduit, wiring and piping.

1.1.1.7 Panels / Motor control centres including electric motor starters and variable frequency controls.

1.1.1.8 Software required to effect a complete and operational BMCS as specified herein.

1.1.1.9 The entire control system to be complete with all required accessories, control devices, thermostats, valves, motors, relays, switches, dampers, and electric wiring to provide the function as described hereinafter, regardless of whether or not specifically mentioned or shown. All controls (other than PLCs supplied by the equipment manufacturers) to be the product of one manufacturer. Where possible, full details of deviations from manufacturers products to be submitted prior to trade contract appointments. All controls wiring, containment and motor control centres to be provided and installed by the Building Management Control System Sub-Contractor.

1.1.1.10 Complete operating and maintenance manuals and field training of operators and maintenance personnel.




1.1.1.11 Provide complete drawings and documentation to the Main Contractor for approval before any field installation is started giving complete description of all control elements and showing complete wiring diagrams, including functional description. Drawings shall indicate specifically the type of finish of all room type controls, subject to the Main Contractor’s approval. All information to be issued for a minimum two week approval process from receipt by the Engineer.

1.1.1.12 The Building Management Control Systems shall include but not be limited to the following :-

1.1.1.12.1 Chilled Water System including chillers, cooling towers, pumps, variable speed drives

1.1.1.12.2 Fresh Air Handling Units

1.1.1.12.3 Kitchen Extract Systems

1.1.1.12.4 Toilet Extract Systems

1.1.1.12.5 Split AC systems

1.1.1.12.6 L.V. Switchroom Air Conditioning

1.1.1.12.7 Domestic water services booster set system

1.1.1.12.8 Cold water storage tank monitoring

1.1.1.12.9 Sump pump systems

1.1.1.12.10 Generator interfaces

1.1.1.12.11 Lift interfaces

1.1.1.12.12 Fire Alarm system interfaces

1.1.1.12.13 Lighting control system interface

1.1.1.12.14 Fuel oil pumps, tank alarms, etc.

1.1.1.12.15 Smoke Exhaust Systems

1.1.1.12.16 Water treatment systems

1.1.1.12.17 Sprinkler pumps, tank alarms, jockey pump, etc.

1.1.1.12.18 DDE Interface with all equipment protocols.

1.1.1.12.19 All software to be open architecture

1.1.1.12.20 Fan coil units

1.1.1.12.21 General exhaust systems, including car park ventilation




1.2 RELATED WORK SPECIFIED ELSEWHERE

These sections are detailed in the Mechanical and Public Health Services Specification

TITLE SECTION

1.2.1 Scope of Work 15801

1.2.2 Operating and Maintenance Instructions 15803

1.2.3 Submissions and Reviews 15804

1.2.4 Dampers 15816

1.2.5 Valves 15821

1.2.6 Chillers 15830

1.2.7 Cooling Towers 15831

1.2.8 Pumps 15832

1.2.9 Fan Coil Units 15845

1.2.10 Split AC Systems 15846

1.2.11 Centrifugal Fans 15850

1.2.12 Axial and Mixed Flow Fans 15852

1.2.13 Air Handling Units 15853

1.2.14 Electric Motors 15862

1.2.15 Electric Motor Starters 15863

1.2.16 Motor Control Centres 15864

1.2.17 Variable Frequency Controllers 15865

1.2.18 Testing, Inspection and Commissioning 15880

1.2.19 Water Treatment 15881

1.2.20 Domestic Water Systems 15882

1.2.21 Water Storage Tanks 15884

1.2.22 Domestic Water Heaters 15886

1.2.23 Fire Protection Systems 15888




1.2.24 Hydropneumatic Tanks 15885

1.3 SUBMITTALS

1.3.1 Shop Drawings: Control and wiring diagrams for each system, written sequence of operation for each system and each system's operating mode. The Building Management and Control Systems Sub-Contractor shall develop a reference system, with the approval of the Main Contractor, that will identify all devices and controls for labelling and identification purposes.

1.3.2 Product Data: Manufacturer's latest published data for materials, equipment and installation.

1.4 PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

1.4.1 Installation of the following items furnished under this Section but installed by the Mechanical Contractors’ works.

1.4.1.1 Automatic Control Valves

1.4.1.2 Automatic Control Dampers

1.4.1.3 Pockets for temperature, pressure and flow sensors etc

1.4.1.4 Liquid Flow Switches

1.4.2 Supervise and co-ordinate the installation of equipment, instruments and materials furnished under this Section but installed by the Mechanical Contractors. All equipment and instruments shall be installed in strict accordance with the manufacturer's published installation instructions.

1.4.3 The Building Management and Control System Sub-Contractor shall use the description of operation and the point schedules within the specification to determine the number and type of sensors, switches etc. required to enable the system to operate satisfactorily. The sensors, switches etc. indicated on the drawings are only indicative for numbers of pockets/wells required to be provided by other Sub Contractors. The Building Management and Control System Sub Contractor shall advise as early as possible the number and position of all sensors, switches etc., for coordination.

1.5 SYSTEM DESCRIPTION

1.5.1 System Configuration:

1.5.1.1 The Building Management and Control System (BMCS) shall provide both monitoring and control of HVAC and electrical equipment for building management, energy conservation, and environmental control.




1.5.1.2 The BMCS control philosophy shall be direct digital control and shall be implemented by a distributed digital system based on a Bacnet / Echelon / ARCNET communication protocol.

1.5.1.3 The central processing unit (CPU) shall provide for overall building data acquisition and transfer, report generation, historical data storage and retrieval, and operator interface.

1.5.1.4 The CPU and DDCs shall communicate through dedicated communications net work.

1.5.1.5 The Direct Digital Controllers (DDC) shall perform remote data acquisition and supervisory process control. DDCs shall be locally mounted completely self-contained, field programmable, real-time microprocessor based controllers capable of standalone operation.

1.5.1.6 Each DDC shall be connected to its particular controlled environment through field I/O instrumentation (controllers).

1.5.1.7 All controls shall be electric/electronic type including terminal unit controls.

1.6 DESIGN AND PERFORMANCE CRITERIA

1.6.1 Expansion Capability

1.6.1.1 Communications network capable of handling 30,000 remote functions (points).

1.6.1.2 Central processing unit capable of handling 30,000 remote functions (points) with no hardware changes except addition of DDCs and communications networks.

1.6.1.3 System shall be modular, to allow change of function and operation in the field by plug-in module equipment and software change to expand system capacity on full on-line basis.

1.6.2 Response Time

1.6.2.1 Time between occurrence of alarm, status change or change of value and its processing, display or printout shall not exceed 10 seconds irrespective of other system activities.

1.6.2.2 Time between an operator's command and the associated system output shall not exceed the following times irrespective of other system activities:

Point Command (Start Stop, Setpoint, etc.) 5 seconds Log Request 5 seconds Graphics Request 2 seconds Data 10 seconds Program or Database Modification 5 seconds (Transmit to Change)




1.6.3 Provide stable control of all connected systems with a closed loop control

accuracy not to exceed:

1.6.3.1 Temperature: ±2 percent of sensor span

1.6.3.2 Humidity: ±2 percent of sensor span

1.6.3.3 Pressure: ±2 percent of sensor span

1.6.3.4 Flow: ±3 percent of sensor span

1.6.4 Environmental Conditions

1.6.4.1 The DDCs, Controller, Panels/MCCs, and other field equipment shall operate under ambient environmental conditions of 0°C to 50°C dry bulb and 10% to 95% relative humidity, non-condensing. Sensors and control elements shall operate under the ambient environmental temperature, pressure, humidity, and vibration conditions normally encountered for the installed location.

1.6.4.2 Other equipment, such as Central Processing Unit, Colour Graphic Monitor and printers, shall, unless designated otherwise, operate properly under ambient environmental conditions of 10°C to 40°C and a relative humidity of 20% to 80%.

1.6.5 Materials and Equipment

1.6.5.1 Where multiple units of the same type are required, the units shall be products of a single manufacturer. However, the component parts of the system need not be the products of a single manufacturer. The components shall not require customising other than setting jumpers and switches and adding firmware. Each major component of equipment shall be labelled with the manufacturer's name, address, model and serial number.

1.6.5.2 All external equipment and devices shall be IP67 (plastic bags over actuators will not be permitted).

1.6.6 Protection from Interference

1.6.6.1 Total system shall be immune to electrical noise from the building electrical systems.

1.6.6.2 Total system to be immune to radio frequency and electro-magnetic interference which, because it is an airport terminal, is expected within the building, including operation of hand held radio transmitters at close proximity to BMCS equipment.

1.7 SUBMITTALS

1.7.1 General:




1.7.1.1 Indicate prior to the appointment and at the beginning of each submittal, deviations from requirements of Contract Documents.

1.7.2 Product Data:

1.7.2.1 Technical bulletins and catalogue data for all equipment and system components. Clearly identify, by use of symbol or tag number, the service of each item. All irrelevant information shall be marked out leaving only pertinent data.

1.7.3 Shop Drawings:

1.7.3.1 Shop drawing submittals shall include sufficient data to indicate complete compliance with Contract Documents. Submissions in form of drawings, brochures, bulletins, catalogue data, and/or narrative descriptions. As a minimum requirement submit:

1.7.3.1.1 Symbol and abbreviation lists.

1.7.3.1.2 System block diagram showing quantity and location of CPU, operator console equipment, DDCs, Field Equipment Panels and Major System Components.

1.7.3.1.3 Control diagrams for all systems controlled. Controls shall be shown on system flow diagrams.

1.7.3.1.4 Interfaces (software and hardware) with equipment provided in other sections of specifications. Narrative description of operation for each system, including alarm and emergency sequences, and equipment interlocks.

1.7.3.1.5 Description of manual override capabilities.

1.7.3.1.6 Complete input output point schedule. Identify point function, type and location.

1.7.3.1.7 Spare capacity provisions.

1.7.3.1.8 Detailed bill of materials.

1.7.3.1.9 Valve and damper schedule: Provide identification numbers, location, system, dimensions and performance data. Include damper leakage rates.

1.7.3.1.10 Device mounting details. Include as a minimum:

SENSING ELEMENTS IN DUCTS OR CASINGS.

SENSING ELEMENTS IN PIPING.

OUTDOOR SENSING ELEMENTS




Ladder wiring diagrams.

Other information as requested here within.

1.7.3.1.11 Cause and effect matrices for life safety interfaces.

1.7.4 Programming:

1.7.4.1 Point identification code.

1.7.4.2 System advisory messages, printouts, logging formats.

1.7.4.3 Drawings of system graphics showing monitored points.

1.7.4.4 Software flow charts for application and DDC programs.

1.7.4.5 Person machine interface program, include commands, alarm annunciation, logs and programming capabilities.

1.7.4.6 Description of system operation under failure conditions.

1.7.5 Samples:

1.7.5.1 Thermostats and Humidistat’s.

1.7.5.2 All devices mounted on finished surfaces.

1.7.6 Quality Control Submittals:

1.7.6.1 Proof of compliance to applicable codes and standards.

1.7.6.2 Final calibration, commissioning and testing reports.

1.7.6.3 Main Contractor reserves the right to visit the manufacturers' works to observe construction of equipment.

1.8 OPERATING AND MAINTENANCE MANUALS

1.8.1 General

1.8.1.1 Submit two (2) draft copies of Operating and Maintenance Manuals for review. After review by the Engineer, the BMCS Sub Contractor shall incorporate review comments and submit four (4) final copies with works processed sections on disk.

1.8.1.2 During guarantee period contractor shall update manuals with modifications made to system. Provide replacement pages or supplements in quantity stated above.

1.8.1.3 The Operating and Maintenance Manuals shall be generally in accordance with Section 15803.

1.8.2 Operating Manual to serve as training and reference manual for all aspects of day-to-day operation of the system. As a minimum include the following:




1.8.2.1 Control flow diagrams.

1.8.2.2 Sequence of operation for normal and abnormal operating modes. The sequences shall cross-reference the system point names.

1.8.2.3 Description of manual override operation of control points.

1.8.2.4 System manufacturers complete operating manuals.

1.8.3 Maintenance Manual to serve as training and reference manual for all aspects of day-to-day maintenance and major system repairs. As a minimum include the following:

1.8.3.1 Complete as-built installation drawings for each system.

1.8.3.2 Overall system electrical power supply scheme indicating source of electrical power for each system component. Indicate which components are on emergency power and indicate all battery backup provisions.

1.8.3.3 Overall system shielding and grounding (earthing) scheme indicating all major components and ground paths.

1.8.3.4 Photographs and drawings showing installation details and locations of equipment.

1.8.3.5 Charts showing normal operating conditions at significant points such as electrical test points.

1.8.3.6 Routine preventive maintenance procedures, corrective diagnostic troubleshooting procedures, and calibration procedures.

1.8.3.7 Parts lists with manufacturer's catalogue numbers and ordering information.

1.8.3.8 Lists of ordinary and special tools, operating materials supplies and test equipment recommended for operation and servicing.

1.8.3.9 Manufacturer's operating set up, maintenance and catalogue literature for each piece of equipment.

1.8.3.10 Maintenance and repair instructions.

1.8.3.11 Recommended spare parts.

1.8.3.12 Field test reports.

1.8.4 Programming Manual to serve as training and reference manual for all aspects of system programming. As a minimum include the following:

1.8.4.1 Complete programming manuals, and reference guides.

1.8.4.2 Details of any special software packages and compilers supplied with system.




1.8.4.3 Information required for independent programming of system.

1.8.4.4 Documentation on application and DDC programs: Flow charts, equations, parameters.

1.8.4.5 Points schedule; include all points, real and virtual.

1.8.4.6 Software troubleshooting procedures.


1.9.1 The Contractor shall meet the following qualifications:

1.9.1.1 Have a minimum of four (4) years of demonstrated technical expertise and experience in the installation and maintenance of Direct Digital Control Systems similar in size and complexity to this Project.

1.9.1.2 Have maintained a service organisation consisting of at least three competent servicemen, within 50 miles of this project, for a period of not less than three years.

1.9.2 The Contractor shall provide a Project Manager responsible for direct supervision of installation and startup of the system. The Project Manager shall have a minimum of 4 years of experience in the design and installation of systems of similar type and scope.

1.9.3 Comply with all current local governing codes, ordinances and regulations.

---------------------------------------

PART 200 - PRODUCTS ---------------------------------------

2.1 APPROVED MANUFACTURERS AND INSTALLERS

2.1.1 Johnsons Controls Ltd

2.1.2 Siemens Landis and Staefa Division

2.1.3 Satchwell

2.1.4 Honeywell Building Controls

2.2 HEAD END WORK STATION

2.2.1 Provide a Head End Work Station that shall include as a minimum the following equipment:

2.2.1.1 Central Processing Unit (3.0 MHZ minimum processor speed)

2.2.1.2 Colour graphics display terminal

2.2.1.3 Colour laser Printer.




2.2.2 The equipment listed above shall be assembled in a Work Station configuration that allows operator access to all equipment from one position (Furniture provided by others).

2.3 CENTRAL PROCESSING UNIT (CPU)

2.3.1 Provide as minimum a Pentium IV CPU with minimum 1.0 GB of RAM, one 48x speed (minimum) CD ROM read/write disk drive, one dual sided double density 1.44MB floppy disk drive and one 100 Giga-byte (minimum) hard disk drive. The CPU shall be by a recognisable, reputable IBM clone manufacturer i.e. Compaq, Dell, Digital, or equal and approved.

2.3.2 Provide an integral sound card, plus 16 MB PCI Graphics Card (Minimum 880 mHz RAM DAC), with associated multi-media amplifier and speaker system to allow software to provide audio signals on detection of an alarm. Audio alarm tones shall be variable and capable of being enabled or disabled on operator command.

2.3.3 The CPU operating programs and data base software shall be stored on the hard disk drive, along with Windows 2003 XP software and McAfee Anti-Virus software. The BMS Sub-Contractor shall offer as an option an alternative operating system, but shall guarantee stability of the system and provide all technical software support on this system.

2.3.4 Provide a Microsoft compatible mouse with software to suit.

2.3.5 Provide an internal fax modem capable of (minimum) 56K (v.90) communication speed. The BMCS Sub-Contractor shall offer as an option the fastest available ISDN compatible fax modem to provide optimum off site maintenance.

2.3.6 Provide internal minimum Cat.5, 100MBp.s network card for primary local area network and software for ARCHNET, Echelon or Bacnet system (or equal and approved) for BMCS communication.

2.3.7 Provide an internal UPS power line filtering (Detailed in Section 2.7) and uninterruptible power supply (UPS) via battery back up for continuous main power supply failure up to two hours. Power management software shall be provided to optimise operation of the CPU under battery back up power at no cost to the Owner.

2.4 COLOUR GRAPHICS DISPLAY

2.4.1 Provide a minimum 20” Active matrix LCD with resolution 1280 * 1024 Energy star compliant screen complete with all required cables for use in displaying system graphics, status reports, alarm messages and operator information. Provide with a minimum of 256 colours and 1180 x 1024 lines of resolution.

2.5 ALARM AND LOGGING PRINTER

2.5.1 The printer shall be provided for hard copy data logs and alarm logs.




2.5.2 The printer shall be high speed and self contained with cassette storage of up to 500 sheets of A4, with an output tray of similar capacity.

2.5.3 All change-of-state reporting, system logs, information summaries, system malfunctions and alarms shall be printed at this terminal.

2.5.4 The printer, equal to a Hewlitt Packard HP4700, shall be a laser colour printer, microprocessor controlled and be user programmable. The printer shall be capable of full colour graphics. The printer shall have a standard RS-232C interface.

2.6 PORTABLE OPERATOR'S TERMINAL (POT)

2.6.1 Provide the Main Contractor with 4 No. Portable Operator’s Terminals as described herein for handover to the owner immediately after commissioning. Obtain written receipt from Main Contractor upon handover, as these POTs have proved in the past to have amazing disappearing powers.

2.6.2 Provide a jack at each Controller and at each Plant Room ready for the plug connection of the POT. The Operator shall be able to communicate with the BMCS via the POT using a similar Operator Interface to that for the I/O devices at the BMCS Room.

2.6.3 The Portable Operator’s Terminal (POT) shall be as follows:

2.6.3.1 Output display shall be VDU, LCD or LED, with minimum concurrent display capability of 30 Characters, or it shall be a printer. Display must be backlit to maintain clarity of screen characters between 0.1 to 900lux.

2.6.3.2 Integral touchpad.

2.6.3.3 Weight, including carry case, not to exceed 2.5kg.

2.6.3.4 Provide carrying case designed specifically for equipment which ensures adequate protection.

2.6.3.5 POT shall be powered by a rechargeable battery or shall be powered by either 24 Vac or 230 Vac source. If battery powered then BMCS Sub-Contractor shall provide batteries adequate for a minimum of 20 hours of operation. If powered by 24 Vac or 230 Vac supply, then BMCS Sub-Contractor shall provide power to each location, including wiring, conduit, plugs, etc.

2.6.4 Provide the means to undertake, at minimum, the following control and monitoring functions via the POT.

2.6.4.1 Monitor the current status of any analogue or digital input or output including terminal unit parameters.

2.6.4.2 Monitor and change any control loop setpoints including those for the terminal units.




2.6.4.3 Stop / start any motor including terminal units.

2.6.4.4 Manually control any damper, valve or any other output.

2.6.4.5 Change any alarm limits.

2.6.4.6 Changing PID control algorithm constants.

2.6.5 The POT shall be compatible for modem connection, which shall enable it to communicate with the Central Processing Unit from an off-site location. The connection modem type shall be compatible with and meet the requirements detailed for the modem at the Central Processing Unit. The POT Shall have a minimum three passwords levels. Separate cabling for connecting the POT shall not be acceptable. Changing the parameters locally from any outstation shall be done by the POT which is a truly portable and hand held device and not via a laptop. It should be possible to connect the portable handheld terminal to any of the DDC controllers and communicate with any one of the DDC controllers.

2.7 POWER LINE FILTERING

2.7.1 Provide power line filtering equipment for the Central Processing Unit, Operators’ terminals, all Controllers and all other components operating off mains power.

2.7.2 Provide surge protection facilities having a minimum dielectric strength of 100 volts and response time of 10 nanoseconds or less. Provide units having transverse mode noise attenuation of 65 dB and common mode noise attenuation of 150 dB at 40 Hz to 100 Hz.

2.7.3 Power line filtering shall be incorporated into the BMCS components or it shall be provided as separate item(s) external to the BMCS components. Provide all required conduit, wiring, terminations, etc. as necessary.

2.8 SOFTWARE LOADING DEVICE

2.8.1 Provide a portable, disc or tape software loading device to allow operator to load software into CPU. The software load device should offer the function in conjunction with the local operators' terminals.

2.9 DIRECT DIGITAL CONTROLLER

2.9.1 Direct Digital Controller (DDC) shall be a completely self-contained, field programmable, real time microprocessor based controller.

2.9.2 DDC application programs shall be resident in the DDC. Data shall be downloaded from the CPU. Once down-loaded, a DDC shall not require further communication with the CPU except for data base changes, operator commands, and requests from the CPU for DDC data.




2.9.3 The DDC shall be expandable by adding input/ output logic cards that operate through the processor of the DDC. The processor in the DDC shall be able to manage input/output logic cards mounted locally or remotely from DDC, thereby expanding its control loop and energy management point capacity.

2.9.4 Input/Output Logic Cards:

2.9.4.1 Analogue input (AI) - accept industry standard 4-20ma, 0-5v, 0-10V, 3-15 psi and thermistor analogue signals. Provide (below 50v) integral power supply for analogue sensors. Must accept signals from sensors with remote power supply if required. Isolate grounds if required for proper operation. Analogue to digital conversion with a minimum of 10 bit resolution. Minimum of eight points per DDC.

2.9.4.2 Analogue output (AO) - provide industry standard 3-15 psi, 4-20 ma, 0-5v and 0-10v analogue output signals. Isolate grounds if required for proper operation. Digital to analogue conversion with a minimum of 10 bit resolution. Minimum of eight points per DDC.

2.9.4.3 Digital input (DI) - accept, non-powered, binary contact closure signals. Provide pulse counting capability of at least 10 closures per second. DI circuit shall be electrically isolated from DDC logic card. Minimum of eight points per DDC.

2.9.4.4 Digital output (DO) - maintained or momentary electrical relay with suitable rated isolated contacts for start/stop and mode change of devices as scheduled. Minimum of eight points per DDC.

2.9.5 Provide power supplies with Power Line Surge Protection and Power Line Filtering.

2.9.6 The DDC shall be supplied with a minimum of 24 hours of battery backup for the RAM and real time clock. Provide automatic restart and battery recharging upon restoration of power.

2.9.7 Provide a pedestal base floor mounted or wall mounted steel cabinet with full front hinged door, locking handle with master key and non-glare baked enamel finish. Each DDC shall contain a plastic encased control diagram of associated systems.

2.9.8 Capabilities:

2.9.8.1 Standalone capability: If CPU or communications network fails, the DDC shall continue to function.

2.9.8.2 If, by failure of a sensor or system component which causes information critical to a DDCs program to be lost, default values or subroutines will automatically be used to approximate critical information to ensure continued control.

2.9.8.3 Real time operating system capable of time of day scheduling and other time based functions.




2.9.8.4 Each DDC shall be provided with the ability to prevent unauthorised access to its software program. This shall be accomplished by a password or cabinet lock. In the locked or unauthorised position, the operating characteristics of the DDC cannot be changed, although inputs, outputs and set point values can be displayed. In the unlocked or authorised position, the ability to change the DDC program shall be unhindered.

2.9.8.5 Alarm processing to include: change of state, flow proof, high and low analogue limits, and setpoint deviation. Provide at least two levels of alarm priority.

2.9.8.6 The DDC programming language shall be designed for Building Automation and Control applications and shall be capable of performing the following control algorithms:

2.9.8.6.1 Floating

2.9.8.6.2 Proportional (P), direct and reverse acting.

2.9.8.6.3 Proportional, plus Integral (PI).

2.9.8.6.4 Proportional, Integral, plus Derivative (PID).

2.9.8.6.5 Anti-integral wind up.

2.9.8.6.6 Cascade.

2.9.8.6.7 Programmed interlock logic.

2.9.8.6.8 Dead band switching and control.

2.9.8.6.9 Incremental control.

2.9.9 DDC Configuration:

2.9.9.1 Points used in the same control loop or algorithm shall be connected to the same DDC.

2.9.9.2 Spare capacity: allow for a 10 percent increase in digital points and a 10 percent increase in analogue points per DDC location. Addition of points shall require only programming, control devices and wiring.

2.9.9.3 Input output expander boards may be used to expand DDC point capacity if total number of physical points (including spare capacity provisions) connected to DDC does not exceed 64 points. Physical points are defined as analogue input/ analogue output, binary input/ binary output. Data points stored in the DDC controller are not considered physical points.

2.10 TERMINAL UNIT CONTROLLERS (TUCs)




2.10.1 Liaise with all Terminal Unit Controllers’ manufacturers to ensure that each terminal unit is provided with a PLC controller consisting of a microprocessor controller, fault detection, valve actuator and temperature sensor.

2.10.2 The Controller shall comprise a microprocessor (eight bit minimum), analogue digital converter, a minimum of 512 bytes of non-volatile reprogrammable memory and interface for the communication with the BMCS. Factory-installed programmes shall be suitable for the intended TUC use, as described in the sequences of operation herein.

2.10.3 TUCs shall be connected in a multidrop configuration to the BMCS. Through this interface it shall be possible to perform all TUC monitoring, control and programming functions from the BMCS using the proper passwords. Failure of the communications network shall not affect the operation of the TUC.

2.10.4 A transformer shall be provided by the terminal unit manufacturer and factory wired to the TUC and other control devices such as actuators. The transformer shall be 24 volt AC + 10% at 50/60 Hz.

2.10.5 The valve actuator shall be provided as an integral part of the controller assembly or a separate valve/actuator factory installed and wired to the controller. The actuator shall be a 24V AC 50 Hz linear reversible motor capable of producing at least 4,000 mN.m torque.

2.10.6 Provide a space temperature sensor for each terminal unit which shall be field mounted and wired. Visible elements shall be subject to the approval of the architect. The sensor shall be a RTD or thermistor housed in an enclosure suitable for wall mounting. The housing shall incorporate the plug-in connection for the portable interface device. The sensor accuracy shall not exceed + 0.5°C.

2.10.7 Provide two (2) battery powered portable interface devices (PIDs) for communicating with TUCs. The PID shall use English language displays and commands and be password protected to prevent unauthorised modifications to programs and parameters. Provide a protective carrying case for each unit. The unit weight shall not exceed 1.5 kilograms. The connection to the TUC shall be via a plug-in connection at the space temperature sensor. The PID shall be capable of performing all functions required for commissioning, testing, diagnostics and day-to-day operation of the TUC. Obtain written receipt from Main Contractor upon handover of PIDs.

2.11 FIELD EQUIPMENT PANEL

2.11.1 Field equipment panels shall be provided to interface the DDC panels with control devices. The panels shall house interface relays, transducers and other miscellaneous control components. Proper care shall be taken to ensure that there is no induction problem between the control and power cables.




2.11.2 The panel shall be conduit connected to its associated DDC panel and shall contain barrier type terminal strips mounted for input and output wiring terminations.

2.11.3 All equipment internal to panel or face mounted shall be identified with nameplates to match approved shop drawings.

2.11.4 Field equipment panels shall have master key lock and hinged gasketed front door. Construction to be equal to DDC enclosures.

2.12 SENSORS AND CONTROL DEVICES

2.12.1 General:

2.12.1.1 Provide sensors and control devices as indicated on mechanical plans, control flow diagrams and as required to meet specified performance. Where performance specifications exceed capabilities of hardware specified, performance governs. The installation of such devices shall be the responsibility of this contractor.

2.12.1.2 All analogue sensors shall be industry standard 0 to 10 volt or 4 to 20 ma type with built-in circuit protection against reverse polarity and supply voltage transients. The transmitters shall be matched to the sensing element and be compatible with the DDC.

2.12.1.3 All sensor/transmitters assemblies shall be factory calibrated.

2.12.1.4 All sensor wiring, analogue or digital, input or output, shall be capable of sharing single conduit runs without affecting signal performance. All signal wiring shall also be capable of sharing single conduit runs with switched AC of 230 volts.

2.12.1.5 The sensor range shall be suitable to the application.

2.12.1.6 Minimum contact rating of relays and switches shall be 5 amp 230 volts resistive.

2.12.1.7 All components of sensors exposed to process shall be rated to withstand 150 percent of maximum process temperature and pressure.

2.12.2 Thermowells:

2.12.2.1 Provide stainless steel thermowells for each immersion type temperature sensor and switch. Thermowells shall have extension for pipe insulation and threaded connection to pipe. Threaded connection shall be a minimum of 20 mm. Maximum insertion length shall be 150 mm or 3/4 the pipe diameter, whichever is smaller.

2.12.3 Temperature Sensors:




2.12.3.1 Temperature sensor assemblies shall consist of a 100 or 1,000 OHM platinum RTD sensor protected in a housing suitable for the environment in which it is installed.

2.12.3.2 Sensor accuracy shall not exceed 0.75°C. Except for chilled water applications, the accuracy shall not exceed 0.25°C.

2.12.3.3 Sensors for mixed air and coil discharge applications, and for fan discharge applications in systems over 25 cubic metres per second, averaging type sensors shall be used. Probe length shall be at least one linear metre per 1.25 square metres of duct area or equal to duct width where installed, whichever is longer.

2.12.3.4 Outside air sensors shall be mounted on a northern exposure and mounted within a ventilated weatherproof enclosure.

2.12.4 Humidity Sensors:

2.12.4.1 Humidity sensor assemblies shall consist of a capacitive or chilled mirror type sensor protected in a housing suitable for the environment where it is installed.

2.12.4.2 The sensor accuracy shall not exceed 3% RH. Sensor span shall be 10 to 95% RH.

2.12.5 Flow Sensor - Liquid:

2.12.5.1 The flow transmitter assembly shall be a clamp-on ultrasonic type operating on the wide beam transit time principle.

2.12.5.2 The system shall consist of two (2) clamp-on transmitter/receivers and a flow rate computer with digital display of flow rate and total flow. The flow computer shall output a 4-20mA signal to DDC.

2.12.5.3 The assembly shall be factory calibrated and field installed to an accuracy of 2 percent of the actual flow rate over the entire operating span.

2.12.5.4 The meter shall be rated for the temperature conditions of the process.

2.12.6 Pressure Sensor Assembly - Air:

2.12.6.1 The assembly shall consist of a pressure sensor contained in a housing suitable for duct mounting. The pressure sensor housing shall have an IP 54 rating in accordance with IEC 529.

2.12.6.2 The assembly shall be factory calibrated and field installed to an accuracy of 15 Pa over a range of 1.0 kPa.

2.12.6.3 Probe: 0.2m Pitot tube, brass.

2.12.7 Differential Pressure Sensor Assembly - Liquid:




2.12.7.1 Assembly shall consist of a differential pressure sensor enclosed in a gasketed, dust and water tight case. All body cavities open to the process fluid shall be provided with drain ports at the cavity bottom and vent ports at the top of the cavity.

2.12.7.2 The transmitter shall be capable of sustaining differential pressures in either direction, up to the body rating without damage to the instrument, loss of accuracy, or zero shift.

2.12.7.3 The transmitter shall be fully compensated for both process and ambient temperature variations. The transmitter shall be furnished complete with input gauges and factory mounted 3-valve manifold.

2.12.8 Watt Transducer:

2.12.8.1 Watt transducer shall consist of current and voltage transducers. The assembly shall have output open and short circuit protection. Total accuracy of + 2% of span.

2.12.9 Differential Pressure Switch - Air:

2.12.9.1 Shall be diaphragm operated and actuate a SPDT snap-acting switch. Operating point shall be adjustable. Range shall suit application.

2.12.9.2 High and low sensing ports shall be connected to angle type tips designed to sense pressure.

2.12.9.3 Switches used for fan safety shutdown shall be manual reset type.

2.12.10 Differential Pressure Switch - Filters - Non-indicating:

2.12.10.1 Shall be diaphragm operated to actuate SPDT snap-acting switch. Operating point shall be adjustable. Setpoint shall be indicated on visual scale. Range shall suit application.

2.12.10.2 High and low sensing ports shall be connected to angle type tips designed to sense pressure.

2.12.11 Differential Pressure Switch - Filters - Indicating:

2.12.11.1 High and low sensing ports shall be connected over filters to angle type tips designed to sense pressure.

2.12.11.2 Differential pressure switch shall incorporate gauge and switch setpoint indicators for continuous indication of applied pressure and switch settings. Operating point shall be adjustable. Range shall suit application.

2.12.12 Level Switch:

Electrode type level switch with DPDT contacts for each electrode.

2.12.13 Damper Position Switch:




Shall be oil-tight, roller type, SPDT snap-acting switch. Mechanism to provide ample over-travel to prevent stress on damper and control equipment.

2.12.14 Low Limit Thermostat:

Shall have a flexible vapour charged element. When temperature sensed by any 0.30 metre segment of the element falls below setpoint (usually 2°C), thermostat shall operate DPDT manual reset contacts.

2.12.15 Temperature Sensors:

2.12.15.1 General

2.12.15.1.1 Provide sensors and control devices as indicated on mechanical plans, control flow diagrams and as required to meet specified performance. Where performance specifications exceed capabilities of hardware specified, performance governs. The installation of such devices shall be the responsibility of the Building Management and Controls System Sub-Contractor.

2.12.15.1.2 All analogue sensors shall be industry standard 0 to 10 volt or 4 to 20 ma type with built-in circuit protection against reverse polarity and supply voltage transients.

2.12.15.1.3 All sensor/transmitters assemblies shall be factory calibrated.

2.12.15.1.4 All sensor wiring, analogue or digital, input or output, shall be capable of sharing single conduit runs without affecting signal performance. All signal wiring shall also be capable of sharing single conduit runs with switched AC of 230 volts.

2.12.15.1.5 The sensor range shall be suitable to the application.

2.12.15.1.6 Minimum contact rating of relays and switches shall be 5 amp 230 volts resistive.

2.12.15.1.7 All components of sensors exposed to process shall be rated to withstand 150 percent of maximum process temperature and pressure.

2.12.15.1.8 Provide only one of the following RTD sensor types throughout except where noted otherwise:

(1) 1000 ohm at 0°C (+0.2%) thin film platinum with coefficient of resistivity of 0.00385 ohms/ohm/°F.




(2) 100 ohm at 0°C (+0.2%) platinum with coefficient of resistivity of 0.00385 ohms/ohm/°F.

2.12.15.1.9 All sensors provided shall be constructed with the following minimum features:

3 Integral anchored lead wires

Water proof sensor to sheath seal

Strain minimising construction

2.12.15.1.10 Temperature sensor assemblies shall consist of a 100 or 1,000 OHM platinum RTD sensor protected in a housing suitable for the environment in which it is installed.

2.12.15.1.11 Sensor accuracy shall not exceed 0.75°C. Except for chilled water applications, the accuracy shall not exceed 0.25°C.

2.12.15.2 Provide general purpose duct mounted Resistance Temperature Detector (RTD) elements unless otherwise specified with the following minimum specifications:

2.12.15.2.1 Copper sheathed construction.

2.12.15.2.2 Standard conduit box termination, complete with screw terminal connector block.

2.12.15.2.3 Length shall be such that the sensing element is no less than one quarter of the duct width or diameter from the duct wall.

2.12.15.3 Provide spring loaded separable socket thermowell mount elements with the following minimum specifications:

2.12.15.3.1 Stainless steel well.

2.12.15.3.2 Length shall be suitable for application.

2.12.15.4 Provide shrouded outside air RTD elements in accordance with the following:

2.12.15.4.1 Complete with non-corroding outdoor shield designed to minimise the effect of solar heating on the RTD element.

2.12.15.4.2 Waterproof seal.

2.12.15.4.3 Threaded fittings for mating to 20mm conduit.

2.12.15.4.4 Operating temperature range of -6.6°C to 48.8°C.




2.12.15.4.5 Provide the minimum number of shrouded outside RTD elements required for each RTD to perform its specified functions. Outside air RTD element to be installed on facade of the building, subject to approval by Architect and Main Contractor.

2.12.15.5 Provide room (space) temperature (Resistance Temperature Detector) RTD elements with the following minimum specifications:

2.12.15.5.1 Wall mounted protective enclosure for room mounted units. All visible elements to be approved by the Architect.

2.13 TRANSMITTERS

2.13.1 Transmitters to be capable of measuring the space or duct temperature and transmitting an electric or electronic signal directly proportional to the temperature. The range of the transmitters to be 10.0°C, 40°C or 100°C as required, with operating point at midscale.

2.13.2 Each transmission system (transmitter and receiver) to have an accuracy of 1% of full scale range. All transmitters located at the point of measurement.

2.14 RECEIVER CONTROLLERS

2.14.1 Provide a solid-state or an electric proportional temperature controller used with valve and damper actuators or any other device that operates on a 1 to 18 volt DC control signal. Locate receiver controllers on the systems.

2.15 AUTOMATIC VALVES

2.15.1 All automatic valves for low pressure service (under 10 bar) to be constructed of high grade bronze for valves 50mm IPS and smaller, and cast iron for valves in excess of 50mm IPS.

2.15.2 Automatic valves up to 50mm IPS are to have screwed globe bodies; valves at 65mm and above are to have flanged bodies. All valves to have bronze trim, stainless steel stems with self-adjusting Teflon packing.

2.15.3 Water valves to be sized on the basis of 0.3 bar pressure drop unless otherwise indicated.




2.15.4 Automatic control valves to be fully proportioning with modulating plug or V-port inner valves unless specified otherwise. Valves to be quiet in operation and fail-safe in either normally open or normally closed position in the event of power failure. All valves shall be capable of operating at varying rates of speed to correspond to the exact dictates of the controllers and variable load requirements, and capable of operating in sequence when required by the sequence of operation. All control valves to be sized by the control manufacturer and guaranteed to meet the cooling loads as scheduled. All control valves to be suitable for the pressure conditions and close against the differential pressure involved both upstream and downstream of the valve.

2.15.5 Cold water valves, throttling type and bypass valves to have linear flow characteristics. Valves to be single seated type, except where pressure and flow combination exceeds rating for commercial valve operators, double seated valves may be used.

2.15.6 Butterfly type control valves where permitted for use as automatic two-position valves on low temperature water applications shall have a maximum opening torque of 500 inch/lbs.

2.16 DAMPER OPERATORS

2.16.1 Damper operators to consist of a sealed electro-hydraulic system acting against a spring-loaded piston and shaft. The spring provides fail to normal position in the event of power loss. Operators shall provide proportional control. Provide a suitable linkage between operator and damper. The operators shall be capable of operating at varying rates of speed to correspond to the dictates of the controllers and variable load requirements, and capable of operating in sequence when required by the sequence of operation. The operators to have external adjustable stops to limit the stroke in either direction. Provide operator linkage arrangement to permit normally open or normally closed positions of the dampers as required.

2.17 AUTOMATIC DAMPERS

2.17.1 Automatically controlled actuators to be furnished by the Building Management and Controls System Sub-Contractor.

2.17.2 Complete damper construction to comply with IBC 2003 and HCMC Standards. Dampers to be of the opposed blade type.

2.17.3 Complete automatic dampers to comply with the fire/smoke rating of their respective shaft-riser (e.g., fire damper/automatic louvre damper).

2.18 POSITIONING RELAYS

2.18.1 Provide positive relays to insure proper sequence adjustment for automatic valves and automatic dampers operating in sequence.

2.19 ELECTRICAL




2.19.1 Wiring, conduit and connections for power wiring up to the motor control centres and from the motor control centres, including all motors, isolators, VFD, and miscellaneous devices, will be provided by the Electrical Contractor. BMCS sub-Contractor to coordinate with Electrical Contractor to ensure the power supply to MCCs is of sufficient capacity for the final configurations of the MCCs, reflecting all final equipment selections and MCC breakers and controls cabinets design finalised by the BMCS sub Contractor in their shop drawings. Obtain Electrical Contractor sign-off all MCC shop drawings prior to purchase of any equipment.

2.19.2 Provide electrical wiring for electric relays (including power feed) for temperature and pressure indication (under supervision of an electrical contractor recognised by the IEE).

2.19.3 Provide wiring, conduit and connections for low temperature thermostats, high temperature thermostats, alarms, flow switches, actuating devices for temperature, pressure and flow indication, point resets and other electric low voltage control devices.

2.19.4 Provide wiring, conduit and connections between alarms, alarm devices and motor control centres respectively. Verify that all system alarms have been coordinated with the Main Contractor Provide all other control wiring and containment required for the complete operation of the specified systems.

2.19.5 Provide all control wiring as required, between equipment systems and remote monitoring and control panels, as specified elsewhere.

2.19.6 Run all wiring in conduit complying with the requirements of the Electrical Specification and in accordance with British Standards. Provide separate conduit for control wiring under this Section.

2.19.7 For extent of electrical work provided by the Electrical Contractor, refer to electrical plans and specifications, including wiring diagrams and riser diagrams.

2.19.8 Provide standby power for all outstations, terminal unit controllers, etc., that will allow the systems to operate in standby as described in systems sequence of operation (Section 3.6).

2.20 RELATED BUILDING CONTROLS TO BE INCLUDED

2.20.1 Include 8-day programming and control for the following systems and equipment (including but not as a comprehensive list): irrigation system water supply, water features, external facade lighting, etc. Control shall be comprised of standard DDC outstations (as many as required) and distribution wiring, so that the head-end PC and BMCS software can be interfaced, with a single twisted pair connection (with spare terminals provided for future) under this contract. Each outstation must have capability for connection to the Portable Operator’s terminal (POT). Allow for setting the 8-day timings with the Owner at handover.




2.20.2 Provide Panels / MCCs that will provide power and automated control to plant and interface with BMCS outstations. For details of number of MCC panels and connected equipment refer to electrical drawings and specifications and the MCC Schedules. For outstations, the BMCS sub Contractor is to allow for the required number of outstations within the MCCs as dictated by the BMCS Contractor’s Tender price, including all cubical space, wiring, emergency power feeds, etc.

2.21 ELECTRONICS

2.21.1 Interactions with Building Electrical Systems

2.21.1.1 The BMCS facilities shall be protected against the occurrence of electrical noise on the building power systems and such that the BMCS performance will not be degraded by the incidence of electrical noise, both spurious and harmonics, being present on the building power systems where such electrical noise may be reasonably expected in the operating building environment.

2.21.1.2 Certify in writing at the time of shop drawing submittal that the BMCS facilities provided will not cause as a result of their operation, either directly or indirectly, electrical interference to be induced into the building electrical power systems.

2.21.2 Electromagnetic Interferences

2.21.2.1 All equipment and facilities as provided under this Subcontract shall meet all required performance Specifications when subjected to the following possible electromagnetic interferences:

2.21.2.1.1 VHF and UHF FM signals as generated by external or internal portable or fixed transmitters.

2.21.2.1.2 AM and FM signals generated from commercial and private transmitters.

2.21.2.1.3 Continuous and intermittent background RFI and electrostatic discharge noise as may be reasonably expected to be encountered in the vicinity of the installations.

2.21.2.2 Earth all equipment so as to prevent the build-up of electromagnetic voltage potentials.

2.21.2.3 All equipment provided shall continue to function normally when hand held radio transmitters are keyed and operated in their immediate vicinity.

2.21.3 Motor Control




The BMCS Contractor shall provide all motor starters and the electrical contractor shall provide all wiring, conduit and other items as necessary to enable the BMCS to undertake the required monitoring and control functions:

2.21.3.1 BMCS On/Off Control

A pair of terminals shall be wired to the motor starter such that when a BMCS relay contact wired across these terminals closes the motor shall start. When the BMCS relay opens the contact across the terminals the motor shall stop. For those motors "Hard Wired" interlocked the relays shall be wired together with the BMCS relay such that any one of the BMCS, or the hard wired sequence shall start the motor. These actions shall only take place when the panel switch is in the Auto position.

2.21.3.2 BMCS Speed Control

A pair of terminals shall be wired to the motor starter of a 2 speed motor such that when a BMCS relay wired across the terminals closes the motor shall go to its high speed and when the BMCS contact is opened the motor shall be put to low speed. For a variable speed motor, the motor speed will be determined by a BMCS modulated signal of 0 to 10Vdc or 4 to 20mAdc through these terminals. If the associated BMCS contacts (detailed above) are open, then the motor shall be stopped regardless of the status of BMCS relay or speed modulating signal across the speed control terminals. These actions shall only take place when the panel switch is in the auto position. For those motors hard wired interlocked the relays shall be wired together with the BMCS relay such that any one of the BMCS, or the hard wired sequence shall put the motor to high speed.

2.21.3.3 On / Off Status

A pair of terminals shall be wired to the motor starter such that the BMCS monitors a pair of closed no volt contacts when the motor is ON and monitors open contacts when the motor is OFF. This is applicable to single speed, 2 speed and variable speed motors and applied regardless of the position of the panel switch.

2.21.3.4 High Speed / Low Speed Status

A pair of terminals shall be wired to the motor starter such that the BMCS shall monitor a pair of closed no volt contacts when the speed control of a 2 speed motor is set for high speed operation and the BMCS shall monitor open contacts when the motor speed control is set for low speed operation. This status shall be monitored regardless of the position of the panel switch.

2.21.3.5 Damper Interlock




A pair of terminals shall be wired to the motor will not start until contact pair(s) between these two terminals is closed. The terminals shall be wired by BMCS Sub-Contractor to the damper position switch(es) such that the contact is closed when the damper(s) is open and the contact is open when the damper(s) is not open. This interlock shall operate in both the hand and auto position of the plant switch.

2.21.3.6 Plant Safety

A pair of terminals shall be wired to the motor starter such that the motor will not operate when the contacts across these terminals are open. This shall apply in both the hand and auto positions of the panel switch. The BMCS Sub-Contractor shall wire the various plant safety devices such as low and high temperature thermostats and pressure switches, etc. such that the motor is shut down (i.e.: the contacts are open) on an alarm condition.

2.21.3.7 Damper Control

2.21.3.7.1 A pair of terminals shall be wired to provide a contact closure when the plant switch is in the hand position or a BMCS or fire alarm systems start command is issued. This contact closure shall initiate the opening of interlocked damper(s).

2.21.3.7.2 Note that the motor is prevented from starting until the damper(s) is proved to be open as described in damper interlock above.

2.22 GENERAL EQUIPMENT

2.22.1 Panels / MCCs

2.22.1.1 Provide enamelled steel panels / MCCs with isolator interlocked locking door for mounting motor control relays and other applicable components provided under this contract. Starters for each item of equipment shall be incorporated within individual sections of the panel, except where indicated on the drawings as separate panels to Form 2 standard allowing independent isolation for maintenance of each section (refer to Motor Control Centre Section 15864).

2.22.1.2 Components shall be best positioned to facilitate access for maintenance, removal, or replacement.

2.22.1.3 Where required, the cabinet shall be ventilated to prevent excessive heat build-up.

2.22.1.4 All BMCS wiring entering or leaving the panels shall be terminated on a terminal strip.

2.22.1.5 Obtain the approval of the Main Contractor and the Engineer for the location of local panels / MCCs.




2.22.1.6 All panels shall be lockable with the same key unique to the building. Provide ten (10) local panel / MCC keys to the Main Contractor at practical completion.

2.22.1.7 Provide panels / MCCs with adequate ventilation ports and complete with deflectors, gasketting, drip lip and other facilities as necessary to ensure that water from overhead pipes and sprinkler cannot enter the cabinet. Provide panels constructed to BS EN 60947 to a minimum degree of protection IP54.

2.22.2 Nameplates and Warning Notices

2.22.2.1 Provide nameplates for all discrete items of equipment supplied including, at minimum:

2.22.2.1.1 Valves, dampers and actuators.

2.22.2.1.2 Sensors.

2.22.2.1.3 Transmitters.

2.22.2.1.4 Output devices.

2.22.2.1.5 Remote field panels.

2.22.2.1.6 Other field panels.

2.22.2.2 The nameplates shall contain the following information as cross-reference in the “as built” documentation:

2.22.2.2.1 Panels / MCCs: Panel/MCCs identification number.

2.22.2.2.2 End-Devices: BMCS point mnemonic.

2.22.2.2.3 Sensors: BMCS point mnemonic

2.22.2.3 Provide permanent warning notices securely mounted at all BMCS controlled motors, MCCs, panels and local starters. The notices shall state:

WARNING

THIS DEVICE IS UNDER THE CONTROL OF THE BUILDING MANAGEMENT CONTROL SYSTEM AND MAY START OR STOP AT ANY TIME WITHOUT WARNING.

2.22.2.4 Warning notices and nameplates shall be constructed of engraved Trafelite or embossed plastic with, at minimum, 7mm high embossed/etched lettering. Warning notices shall be in red lettering on white background and nameplates shall be black lettering on white background.




2.22.2.5 Warning notices shall be securely attached to the local starters/MCC panels and motors. Nameplates shall be similarly attached. Where suitable flat surfaces are not available warning notices and nameplates may be hung on chain.

2.22.2.6 Submit a list of equipment nameplates to the Main Contractor for review prior to engraving.

2.23 SOFTWARE

2.23.1 General

2.23.1.1 Fully implement, optimise, and commission all software described under this paragraph and required for a complete operable system.

2.23.1.2 Although "Program" implies software, hardware solutions may be acceptable after review and approval of authorised representative. Such differences considered deviations and presented as such.

2.23.1.3 Software programs are described as to general intent. It is recognised that BMCS contractors' software differs; however, the programs that are provided shall incorporate the features described.

2.23.1.4 Each point shall be identified in software with a unique point name of not less than 6 alphanumeric characters. Point names shall be logically and consistently coded to allow identification of the point location (e.g., Building, MER), associated HVAC system (e.g., AHU-1, Pump-2), and point function (e.g., supply temp, humidistat) as a minimum. References and names shall be submitted for approval.

2.23.1.5 Provide an extensive set of run-time software diagnostic packages to monitor and check BMCS functional operation.

2.23.1.6 The real-time executive software and BMCS applications software shall have a proven record of performance in similar continuous applications.

2.23.1.7 Provide automatic software checking for both BMCS functional errors and data transmission errors within the BMCS software. A check shall be included for non-realistic operator data or command entries such as a valve lying outside a pre-defined engineering range.

2.23.1.8 Multiple failures of attempted data transmission by the BMCS shall be automatically enunciated in hard-copy via a unique alarm message at the Central Processing Unit.

2.23.1.9 Provide BMCS facilities for the on site generation or re-generation of the BMCS software.




2.23.1.10 The tripping of the CCF watch-dog timer shall initiate a unique audible alarm at the Central Processing Unit and, during non-normal hours of operation, an audible/visual alarm at the main terminal security desk.

2.23.1.11 The failure of any system device shall be automatically enunciated by the BMCS via a suitably worded message on the printers and VDU and via an audible alarm at the Central Processing Unit and, during non-normal hours of operation, an audible/visual alarm at the security station, and at the Main Control Room.

2.23.1.12 The detection by the BMCS of the occurrence of any BMCS system or building system process alarm shall be automatically enunciated by the BMCS via a suitably worded message on the printers and VDU and via an audible alarm at the Central Processing Unit and, during non-normal hours of operation, designated critical alarms shall generate an audible/visual alarm at the security station and at the Main Control Room.

2.23.1.13 The detection, by the BMCS, of each and every alarm condition shall be individually and automatically enunciated by the BMCS as per the items listed above. Provide a means for acknowledging and silencing each audible alarm annunciation. The alarms shall remain in an alarm file which can be recalled on a printer or VDU until that alarm condition ceases to exist. During non-normal hours of operation, all alarms shall continue to generate a hard-copy message at the Central Processing Unit.

2.23.1.14 The occurrence of multiple alarms simultaneously shall initiate an alarm management sequence that shall cascade / list alarms in order of a designated order. The acknowledgement and clearance at the central processor unit shall be staged for orderly operation.

2.23.1.15 On loss of power, the BMCS components (other than the Central Processing Units) shall automatically shut down in a manner which ensures that no BMCS components or BMCS controlled systems are damaged or placed in a hazardous situation and no data is lost. On stable power restoration the BMCS components shall automatically resume normal operation in an orderly and pre-defined manner without operator intervention being specifically required.

2.23.1.16 The Central Processing Unit shall include an uninterruptible power supply unit with power management software.




2.23.1.17 Any changes made by any means to normal functions, including alarm limits, control strategies, schedules, control algorithms, etc., and the addition/ deletion/modification of points shall be recorded, with the old data saved to a computer data storage onto the central processor unit hard disk. If changes in data fails, then upon its availability for further service the software which is down-loaded from the Central Processing Unit shall reflect any changes made to that software prior to the last manually entered upload command or the last scheduled upload, whichever was the later. It shall be possible to schedule the automatic uploading of data at least once every 24 hours. All changes must be output on the alarm printer.

2.23.2 General Monitoring and Control Software

2.23.2.1 Provide hardware or software input filtering to minimise the effects, on monitoring and control, of noise originating from the following primary sources:

2.23.2.1.1 Process noise

2.23.2.1.2 Electrical noise (5 - 120Hz)

2.23.2.1.3 Radio frequency interference.

2.23.2.1.4 Lift equipment and other equipment normally installed in buildings.

2.23.2.1.5 Other data systems.

2.23.2.2 Provide scan rates at the Central Processing Unit for individual analogue input points by one of the following means:

Either:

2.23.2.2.1 Individual Operator on-line selectable scan rates with a slowest rate of no more than once per 10 seconds with an average scan rate not slower than once per 2 seconds.

Or:

2.23.2.2.2 Fixed scan rate, with rate not slower than once per 6 seconds.

2.23.2.3 Provide analogue input engineering units alarm checks which are Operator definable on a per point basis and shall comprise, at minimum:

2.23.2.3.1 Input high alarm limit.

2.23.2.3.2 Input low alarm limit.

2.23.2.3.3 Special and interlocking alarms as necessary.




2.23.2.3.4 Bad sensor.

2.23.2.4 Provide deadbands on analogue alarm limits in order to minimise the occurrence of nuisance alarms. Deadbands shall be operator definable on a per point basis.

2.23.2.5 Provide normalisation and linearization routines for all BMCS supported sensors, transmitters and other analogue inputs.

2.23.2.6 Provide a defined digital or analogue input proof of operation check for each BMCS originated digital output command. Failure to sense the prescribed proof of operation shall cause the associated alarms to be automatically enunciated by the BMCS.

2.23.2.7 Digital alarm and status points shall be automatically scanned by the Central Processing Unit, at maximum, every 6 seconds. Changes of state shall be output at the appropriate Operator terminals within eight (8) seconds of their detection by the Central Processing Unit.

2.23.2.8 Provide automatic software protection to guard against the occurrence of excessive demands at any instance on building utility services. Provide such protection by one of the following means:

Either:

2.23.2.8.1 Operator on-line definable time delays assignable to each piece of BMCS controlled equipment such that no two pieces of equipment can be started simultaneously. Provide the programmable means to assign delay times between the sequentially starting of items of equipment. Delay times shall be selectable in the range of 1 to 60 seconds.

Or:

2.23.2.8.2 Operator on-line definable groups of equipment such that an item of equipment in any particular group may not be started simultaneously with another item of equipment in the same group. An item of equipment may be started simultaneously with an item of equipment in another group. Provide at minimum 20 groups. An Operator shall be able to:

Add / delete equipment from a particular group.

Select the incremental time interval between equipment starts in a particular group with a maximum resolution of sixty (60) seconds.

Provide an individual time interval for each group.




2.23.2.9 Provide blank database sheets for completion by the Operator. Install the database and sequences as necessary for implementation of this feature as instructed by the Main Contractor.

2.23.2.10 Provide automatic software protection to guard against sequential on/off/on commands being sent to selectable controlled equipment in too rapid succession as might result in equipment damage or premature failure. This requirement shall apply to both BMCS manual (operator originated) and to programmed automatic control commands. The selection of this option and the minimum on and minimum off time frames shall be definable on an individual point basis by an operator using the facilities of the standard on-line operator interface. The minimum on and minimum off time frames shall be on-line variable, at minimum, within a range of 1 to 60 minutes for each individual controlled point.

2.23.2.11 Equipment operating schedules shall be stored in the Central Processing Unit. Copies of schedules shall be maintained in the central computer facilities.

2.23.2.12 The BMCS shall initiate the automatic restart of failed equipment that exhibits an alarm condition. If the BMCS detects a difference between an actual motor or equipment status, then the BMCS shall de-energise the associated control output. Restart of the motor or equipment from the BMCS shall be initiated by the BMCS. The manner in which the interposing and control relays are to be wired and the action of de-energising the control output shall in no way affect the action of the building life safety override facilities and controls.

2.23.2.13 Provide software to enable the programmed and controlled gradual start-up and shut-down of major building mechanical systems, via ramping or other means acceptable to the Engineer, so as to reduce the possibility of damage to such major building mechanical systems during start-up and shut-down.

2.23.2.14 Each BMCS included field input point shall have the following two (2) possible mode conditions selectable via BMCS automatic programmed (auto-alarm lockout feature) or operator entry means on a per point basis.

2.23.2.14.1 ENABLED - Point on-scan with monitoring and alarm annunciation active.

2.23.2.14.2 DISABLED - Point off-scan with alarm annunciation disabled.

2.23.2.15 Each BMCS included field output point which is enabled shall have the following two (2) possible mode conditions selectable via BMCS automatic programmed or operator entry means on a per point basis.




2.23.2.15.1 MANUAL - Scanning, alarm monitoring and associated interlock protection operational. Programmed control actions not to be automatically applied to controlled points with the exception of protection interlocks. Digital output and analogue output changes to be executed manually by BMCS operator subject to protection interlocks.

2.23.2.15.2 AUTOMATIC - All automatic scanning, alarm, monitoring, interlock, control and optimisation software features functioning under programme control. Digital output and analogue output changes not executable manually by operator. All automatic protection interlocks functioning. It shall not be possible to place an output in automatic mode when the output is software dependent on any other point which is disabled, in alarm or “sensor bad”.

2.23.2.16 Each BMCS included control loop shall have the following two (2) mode conditions selectable via a BMCS automatic programmed or operator entry means on a per loop basis:

2.23.2.16.1 DISABLED - Loop not operable. No outputs calculated or driven. Associated controlled output end-device(s) may be repositioned by BMCS operator manual entry for enabled points. Hardwired safety interlocks operable.

2.23.2.16.2 AUTOMATIC - Loop enabled in automatic mode. All outputs to be driven to enabled points. All pre-programmed loop sequences overrides and fail-safes operable. Hardwired safely interlocks operable.

2.23.2.17 Points and loops which are disabled shall automatically have their alarms disabled. Disabled points shall:

EITHER

2.23.2.17.1 Be omitted from reports.

OR

2.23.2.17.2 Be identified as disabled on reports.

2.23.2.18 Provide software within the Central Processing Unit for the on-line development by the Operator of complex and interlocking BMCS control strategies, at minimum, involving:

2.23.2.18.1 Analogue input and output valves and limits.

2.23.2.18.2 Setpoint valves.

2.23.2.18.3 Digital input status/alarm conditions.




2.23.2.18.4 Digital output status conditions.

2.23.2.18.5 Scheduling (time of day) criteria.

2.23.2.18.6 Outside ambient conditions.

2.23.2.18.7 Calculated values.

2.23.2.18.8 Boolean and logical operators.

2.23.2.18.9 Alarm conditions.

2.23.2.18.10 DDC and CPA control strategies

2.23.2.18.11 Other conditions as specified elsewhere.

2.23.2.19 Provide the means through the BMCS Operator Interface for the BMCS Operator to turn OFF any item of BMCS controlled equipment without the request being overridden by any automatic software schedule or any other BMCS controlled means but subject to any applicable protection interlocks.

2.23.2.20 Provide the means to inhibit alarm annunciation on process converted to engineering units as appropriate. The Operator shall be provided with the means to change the applicable conversion constants under password access control.

2.23.2.21 Pulse inputs from, for example, electrical meters shall be converted to engineering units as appropriate. The Operator shall be provided with the means to change the applicable conversion constants under password access control.

2.23.2.22 The following are the requirements for motors after power and equipment failures:

2.23.2.22.1 Following the interruption of power to a motor it shall not restart until commanded to do so by the BMCS as described elsewhere in this Specification.

2.23.2.22.2 The malfunction of any BMCS component shall not cause the status of a motor to change.

2.23.2.23 If the monitored status and the BMCS commanded status differ then the BMCS shall command the motor off such that if cannot restart without manual Operator intervention and a hard copy alarm shall be generated. Allowance shall be made in the software for any time delay relays incorporated into motor starters. This feature shall be incorporated for those motors identified by the Owner.

2.23.3 Monitoring and Control Software (DDC Control)




2.23.3.1 This section defines software requirements which are specific to DDC control loops. In addition the monitoring and control software for DDC systems shall meet the requirements identified elsewhere in this Specification and other requirements as detailed elsewhere within the Subcontract Documents.

2.23.3.2 Update rates for DDC outputs shall be on-line selectable by the Operator on an individual Controller basis in the range of once every half (½) second to once every sixty (60) seconds or where DDC update rates are fixed they shall be updated at least once every six (6) seconds. The required software control algorithms shall be resident at the Controller.

2.23.3.3 Provide three term (proportional, integral and differential) software direct digital control algorithms within each Controller. The Operator will be able to undertake the on-line modification of the control tuning constants, scan rate, filters, deadbands, etc. on an individual loop basis.

2.23.3.4 Provide a means in the DDC algorithms to prevent the occurrence of integral wind-up and for output range limiting, in a flexible manner, on an individual loop basis.

2.23.3.5 Provide bumpless transfer between manual and automatic DDC control modes.

2.23.3.6 Provide on-line development, operation and testing of control strategies including:

2.23.3.6.1 Ration control

2.23.3.6.2 Output, input and setpoint bias control.

2.23.3.6.3 Cascade control

2.23.3.6.4 Setpoint and output ramping

2.23.3.6.5 Setpoint scheduling (by time of day)

2.23.3.6.6 Boolean operators

2.23.3.6.7 Event and analogue limit / alarm interlocking

2.23.3.6.8 Digital input status / alarm interlocking

2.23.3.6.9 Digital output status conditions.

2.23.3.6.10 Scheduling (time of day, etc) conditions

2.23.3.6.11 Lead / lag compensation

2.23.3.6.12 Calculated values

2.23.3.6.13 Other conditions as applicable




2.23.3.7 DDC setpoints, as stored in Controller software, shall be derived from:

2.23.3.7.1 Manual operator entry

2.23.3.7.2 As a bias plus some other system value held with the same Controller.

2.23.3.7.3 From the input, setpoint or output of some other DDC loop within the BMCS. (Cascade Control)

2.23.3.7.4 By defined calculated means

2.23.4 Monitoring and Control Software (CPA Control)

2.23.4.1 Scan rates for Monitoring and Control reset outputs shall be on-line selectable by the Operator on an individual basis in the range of every one (1) minute to every sixty (60) minutes. Provide a means to place all reset outputs on a scan rate of at least every five (5) minutes.

2.23.4.2 Provide Monitoring and Control loop setpoints to be updated individually on-line by both automatic program control means and by BMCS Operator entry from any system terminal.

2.23.5 Password Access Control

2.23.5.1 Provide password access control as protection against unauthorised access to BMCS operations.

2.23.5.2 Provide an installed capacity for a minimum of fifty (50) active passwords. Provide a password definition for all Operators as requested by the Main Contractor.

2.23.5.3 Each individual password shall consist of thirty (30) alphanumeric characters.

2.23.5.4 Each active password shall be directly associated with a set of individual operator’s name. Each operator’s initial set shall consist of up to Thirty (30) alphanumeric characters.

2.23.5.5 Each active password shall be on-line assignable and shall be definable in terms of the function level(s) for which it is valid.

2.23.5.6 Provide at least four (4) function levels as follows:

2.23.5.6.1 Level 1:Can undertake all tasks including the changing of passwords.

2.23.5.6.2 Level 2:Can undertake all tasks except the changing of passwords and changes to the control sequences, schedules and special packages.




2.23.5.6.3 Level 3:Can undertake BMCS manual stop / start control of motors and modulation of valves and dampers, obtain report print-outs and can read all current data values, setpoints and alarm limits.

2.23.5.6.4 Level 4: Can read current values only.

2.23.5.7 Provide the means for an authorised Operator to amend the function level definitions to meet the changing requirements of the Owner. This shall be possible on-line under a master password control or level 1 authority.

2.23.5.8 System access at each terminal shall be automatically concluded when either an on-line definable period of time (initially set at 3 minutes) has elapsed from the time of the last keystroke on that terminal and/or when a terminate command is issued.

2.23.5.9 Provide a master password code to allow the Owner to add / delete / change password and operator initial sets on-line. These changes shall be only be logged on the printer at the location at which the change is made.

2.23.5.10 Password entries shall not be echoed at any terminal. The entry of a valid password shall generate a message of the type “FRED SMITH LOGGED ON”, where “FRED SMITH” is the Operator’s name, at the entry terminal.

2.23.5.11 Provide the means for an authorised Operator, under the control of the master password, to obtain a listing of active passwords and their associated operator’s initial sets, their status and access privileges.

2.23.5.12 Provide the means for any on-line changes to passwords, operator’s initial sets or their status to be logged only on the printer at the location at which the change is made.

2.23.5.13 All reports associated with the password access control package shall, at minimum, contain:

2.23.5.13.1 Time and date of the report.

2.23.5.13.2 Operator password.

2.23.5.13.3 Active / inactive status of each reported password.

2.23.5.13.4 Access privileges for each reported password.

2.23.5.13.5 Deleted.

2.23.6 Automatic Alarm Lockout




2.23.6.1 This package shall enable Owner selected alarms generated by analogue or digital inputs or calculated points to be locked out when the equipment they are associated with is not operating regardless of the reason for the non-operation of that equipment. Either ON or OFF status condition may be designated as the auto alarm lockout status.

2.23.6.2 Enabled analogue and digital inputs shall continue to be scanned and the current values shall appear on all the relevant logs together with an identification of all inputs having the auto-lockout feature.

2.23.6.3 Provide the means for an override of auto-lockout on operator specified inputs whether or not the associated system is operational.

2.23.6.4 Upon start-up of a system the auto-lockout feature for points on that system shall be automatically removed from that system after an Operator on-line defined period of time. The reverse shall also act automatically on the shut-down of the system.

2.23.6.5 Provide a summary log available on-demand, on a point / system / building / total basis. At minimum this summary log shall indicate which points have the auto-lockout feature and which inputs currently have alarms locked out.

2.23.6.6 Authorised operators shall be able to add and delete points having the auto-lockout feature and to change the lockout time delay following the start-up of systems.

2.23.6.7 The actions of the automatic alarm lock-out programme shall not cancel existing point alarm conditions.

2.23.7 General Operation Software

2.23.7.1 The general operative software shall include all programs needed to manage the scheduling of both system and application programs. It shall include all programs needed for use of the systems peripheral devices and communications networks. Parts of this software may be restricted from user modification to insure system integrity. However, the following user access to the executive software shall be provided.

2.23.7.1.1 Ability to switch failing output devices to another device without loss of data or otherwise handle device failures (e.g., jammed printers).

2.23.7.1.2 Ability to modify the priorities and scheduling of application programs.

2.23.7.1.3 Ability to add or delete peripheral devices.




2.23.7.2 Provide diagnostic programs to report and display DDC system failures at the Operator's console both on CRT and printer. Provide on-line error detection and messages for the discs, power supplies, CPUs, communications boards, and peripherals. Upon failure of a CRT display system, the operator shall have the option of interacting with the system via the printers.

2.23.7.3 Provide Software Time Clock which shall display date, time information where required to resolution of one minute and otherwise supply data to programs at resolution of one second; display real time clock in 24 hour format and date. Time and date reset table by simple keyboard entry.

2.23.7.4 Peripheral Equipment Selection:

2.23.7.4.1 Provide peripheral equipment selection control to apportion data to peripheral console as required (e.g., alarms to alarm printer).

2.23.7.4.2 Apportionment of Data and Control Functions shall be a programmable function by a high level operator at any console. Initialisation of the apportionment of data shall be according to the description of the Functional Requirements stated under each Console Description. BMCS Sub-Contractor shall provide all software and programming time required to initialise the system. Submit initial apportionment for all monitored and control functions for review prior to final programming.

2.23.7.4.3 The graphics display shall be logically divided to allow the simultaneous occurrence of operator interaction and alarm indication with no interference to each other's screen display.

2.23.7.5 The system shall observe the following command priorities (from highest to lowest):

2.23.7.5.1 Life Safety (Emergency operation).

2.23.7.5.2 Manual Operator Command.

2.23.7.5.3 Energy Management.

2.23.7.5.4 Automatic Control.

2.23.8 Operator Interface Program.

2.23.8.1 Provide a high-level language as the operator interface with the system for defining and selecting points, parameters, report generation, graphics, and all functions associated with day-to-day operation of the system.




2.23.8.2 Provide software to notify the operator of the occurrence of an alarm condition. All alarm messages displayed on the Colour Graphics Display, on the local printer, and on the remote printer shall be in simple English-language format. System shall print and sound an audible alarm at each occurrence. Operator acknowledgement shall silence the audible alarm. System shall print upon return to normal.

2.23.8.3 Report Generation Software shall be provided to present system information in an organised manner.

2.23.8.3.1 Plant Point Log - A log for each plant which shall include all points required for operation and monitoring of the plant. Do not include points which are used in intermediate calculations and program logic or points used for plant tuning and commissioning. Display for each point: Point Name, Point Description, Current Value, Engineering Units, Alarm Status and Command Priority.

2.23.8.3.2 Application Program Logs - Log for each program shall include current values of all points and parameters used in application program.

2.23.8.3.3 Summary Logs - Logs which summarise system status. Include as minimum:

• Alarm Summary

• Run Time Totalization Summary

• Disabled Point Summary

2.23.8.4 Provide fully implemented interactive graphics with latest available process data fully integrated with the display.

2.23.8.4.1 Point values shall be dynamically updated at least every 20 seconds.

2.23.8.4.2 Use different colours for the various system components to facilitate rapid recognition and ease of interaction. Colours shall be uniform on all displays, such as all master alarms red blinking with reverse field.

2.23.8.4.3 Graphics generation and editing shall be via a high level interactive programming language. The graphics program shall be provided with a library of standard symbols with the capability for user to add custom symbols.

2.23.8.4.4 Provide graphics for but not limited to the following.




Floor plans showing status of associated points within area including but not limited to: smoke detectors, HVAC equipment, associated lighting contactors. Indicate locations of equipment within each area such as DDCs, FEPs, TUCs, space temperature sensors, lighting control panels, etc.

Separate Air, Water and Fuel Oil and Electrical Systems Schematics showing all systems in Block Diagram Form. System status (on, off, alarm) shall be indicated. Risers shall include common sensing points such as outside air and supply and return temperature in main piping systems.

Each air, fuel oil and electrical water plant.

2.23.8.5 Provide software to output a user programmed message in response to an alarm or change of value of any system point. Message length shall be at least 4 lines of 80 characters each.

2.23.9 Application Software

2.23.9.1 Time of Day Scheduling

2.23.9.1.1 A comprehensive program shall be provided to automatically start and stop equipment based on the time of day and day of week, including holidays. The scheduled time-of-day program shall operate in conjunction with and shall be coordinated with optimised Start/Stop program.

2.23.9.1.2 It shall be possible to individually command a point or group of points. For points assigned to one group it shall be possible to assign variable time delays between each successive start or stop command within that group. The system shall have the capacity to accommodate a minimum of 500 uniquely defined schedules. Each load group shall be capable of accommodating a minimum of 250 loads.

2.23.9.1.3 The operator shall be able to define the following information:

• Time, day, dates.

• Commands such as on, off, auto, etc.

• Load or loads as signed to groups.

• Time delays between successive commands.




There shall be provisions for manual over riding of each schedule by an appropriate operator.

2.23.9.1.4 The following reports shall be provided:

• Report of any and all defined time schedules.

• Loads assigned to each time schedule.

2.23.9.2 Programmed Start / Stop

2.23.9.2.1 This package shall enable the start / stop of equipment on a scheduled basis under programme control. Entry shall be protected by the password access control system.

2.23.9.2.2 Provide the means for an authorised Operator to assign on-line a delay between equipment start-ups to prevent both excessive demand on the electrical power system and equipment damage.

2.23.9.2.3 This package shall automatically perform start / stop operations at a minimum of four start and four stop times scheduled for eight days -- seven days of the week and special provisions for holidays.

2.23.9.2.4 Changes to start / stop times, time delay between equipment starts, addition and deletion of points on the start /stop schedule and to the days of the week shall be achievable from the BMCS Operator’s console.

2.23.9.2.5 Provide an interactive procedure for entering the start / stop schedules, requiring only item identification and times to be entered by the Operator. The Operator shall not have to construct a series of logic statements in order to establish this schedule.

2.23.9.2.6 This package shall be set up to perform start / stop control on all motors controlled by the BMCS with each motor having its own start / stop schedule.

2.23.9.2.7 This package shall be overridden by an Operator if the Operator wishes to assume manual control from the BMCS of equipment scheduled by this programme. Such changes shall be automatically logged on the alarm printer.

2.23.9.2.8 Schedule for the start / stop of equipment shall be maintained at the Controller.




2.23.9.2.9 Provide a summary log, on demand, indicating at minimum all points scheduled by this programme and the schedule for each point. This log shall be available on a point, system, building and total BMCS basis.

2.23.9.3 Run-Time Totalization

2.23.9.3.1 Provide monitoring and totalization of the run times for digital status inputs of equipment such as fans and pumps. Where an analogue input variable, such as flow rate, is monitored by the BMCS as the positive indication of operation then this input may be used as the basis for the run-time hours to be totalized.

2.23.9.3.2 Totalization shall be selectable on a per point basis for either the open or closed condition of the digital (status) input.

2.23.9.3.3 A high run time alarm limit shall be assigned, if required, to each point on run time totalization, the attainment of which shall generate a suitable hard copy report message. This limit shall be changeable on-line by personnel with the required password level.

2.23.9.3.4 Run times shall be reset to any total between 0 and 99999 hours whilst on-line by personnel having the necessary password. The date on which the value was reset shall also be entered. If no date is entered, the previous date shall remain.

2.23.9.3.5 Run times shall be totalized up to 99999 hours before resetting to zero. Automatic resetting of a run time to zero shall cause a suitable hard copy message to be provided.

2.23.9.3.6 Provide the means for a minimum of 500 run times to be totalised. Maximum scan frequency shall be once every six minutes.

2.23.9.3.7 Provide a run time totalization summary, available on demand. The summary shall indicate the cumulative run time of all digital inputs on run time totalization and the high run time limits. This summary shall be available on a per point, per system, per building and total BMCS basis.

2.23.9.4 Start/Stop Time Optimisation (SSTO)




2.23.9.4.1 The automation system shall include a software program to perform optimised start-up and shutdown of selected equipment. The SSTO program shall start HVAC equipment at the latest possible time that will allow the equipment to achieve the desired zone conditions by occupancy time. The SSTO program shall also shutdown HVAC equipment at the earliest possible time before the end of the occupancy period, and still maintain desired comfort conditions.

2.23.9.4.2 It shall be possible to apply the SSTO program to all individual plants.

2.23.9.4.3 The SSTO program shall operate on outside weather conditions as well as inside zone conditions, and empirical factors. The empirical factors shall relate to the dynamic responsiveness of particular zones such as heat retention and transfer coefficients. The program shall be fine tuned during the warranty period using empirical data compiled during operation of the building.

2.23.9.4.4 The program shall automatically adjust itself utilising adaptive control techniques.

2.23.9.4.5 The system operator shall be able to, for each system under control of the SSTO program, establish and modify the following parameters:

Occupancy Period

Desired Occupancy Temperature

Cooling Transfer Coefficients

Cooling Retention Coefficients

Primary Equipment Lagtime

2.23.9.4.6 A report shall be provided detailing SSTO parameters such as zone coefficients, zone occupancy time and temperature, activated/ inactivated zones, etc.

2.23.9.4.7 Optimum start/stop times shall be determined for each air handling unit controlled by the BMCS.

2.23.9.4.8 If the optimum start / stop programme determines early morning cool-down is required then the programme shall determine the concurrent start time of the air handling units (operating with closed fresh air intake) and fan coil units. The space temperatures associated with other units are detailed in the BMCS point schedule section of this Specification.




2.23.9.4.9 This package shall continuously monitor the space temperature(s) and outside air temperature for each system specified to be under optimised start - stop control. The control algorithm shall start the system up at the latest possible moment as necessary to cool the space down to the required temperature prior to scheduled occupancy. Fan systems shall be operated with dampers in the full recirculation position during morning cool-down.

2.23.9.4.10 This package shall shut the system down up to a maximum of one hour early if the space temperature and outside air temperature indicate that the building flywheel effect will maintain the space temperature within acceptable limits until the scheduled unoccupied period.

2.23.9.4.11 The occupancy schedule shall consist of a normal start time and finish time for each mechanical system for each day of the week, with a special provision for holidays. Changes to these normal start and vacancy times and the addition and deletion of mechanical systems on the Optimum Start / Stop program shall be achievable on-line by the Operator under password access control.

2.23.9.4.12 The initial set-up of this package shall be based on empirical, or theoretical, calculations considering the building construction, orientation, mass and podium retail traffic patterns (to be provided to the BMCS contractor by the owner for initial input). The package shall be structured such that job site tuning may be done by simple keyboard entry of one multiplier to the empirical formulas results or it shall be adaptive. Printout of space and outdoor air temperature and humidity shall be provided at optimised shut down time and at programmed unoccupied time.

2.23.9.4.13 Provide the means for an authorised operator to select entire system shutdown, or to select only certain items of equipment in a system to be shut down or placed in manual mode, under control of this package.

2.23.9.4.14 Provide an on-demand hard-copy and soft copy report of the relevant start / stop times and all the Operator entered parameters for each system under control from this programme.

2.23.9.5 Duty Cycling




2.23.9.5.1 Provide a duty cycling package to conserve energy by the cycling of mechanical systems.

2.23.9.5.2 The operation of this package shall be coordinated with the power demand limit program.

2.23.9.5.3 Each load shall have an operating time interval during which the load may be cycled on and off provided that it is scheduled to be operational. The cycle off time shall be selectable by the Operator and shall also be automatically adjusted based on space conditions or outside air temperatures.

2.23.9.5.4 Provide the means for an Operator to establish minimum and maximum on and off times for each piece of equipment controlled by this package and high / low limits for associated analogue points, the attainment of which shall cause the cycling to be suspended.

2.23.9.5.5 Provide a summary report for all loads controlled by this package showing all variable parameters associated with each load.

2.23.9.5.6 All variable parameters shall be changeable on-line by the Operator.

2.23.9.6 Supply Air Temperature Reset

2.23.9.6.1 Provide a BMCS software package to determine the supply air temperature setpoint. When mechanical units are in the BMCS automatic mode of control then the supply air temperature setpoint shall be automatically calculated and implemented by the BMCS in accordance with the appropriate procedure as detailed herein or as detailed in the sequences of operation.

2.23.9.6.2 For those mechanical systems in which the air handling units provide primary air for the office tower and podium areas’ cooling systems which are under BMCS control, the supply air temperature setpoint of the associated air handling units shall be set in accordance with the following procedure:

The initial supply air temperature setpoint shall be Operator on-line definable and shall be set at the temperature defined on the Mechanical Drawing Schedule.




The maximum change in the supply air temperature setpoint at any one time shall not exceed 1°C.

The supply air temperature setpoint shall not be reset outside Operator on-line definablelimits which shall be set initially at 15°C and 25°C.

2.23.9.7 Calculation of Psychometric Properties

2.23.9.7.1 Provide a package to calculate the following psychometric properties of air when the values of any two of the properties are known:

Dry bulb temperature

Wet bulb temperature

Dewpoint temperature

Relative humidity

Enthalpy.

2.23.9.7.2 The calculated values shall correspond to the CIBSE sea level psychometric chart in the range of -10°C to 60°C.

2.23.9.7.3 Provide this package complete with all the features specified for the calculated point package detailed elsewhere in this Specification.

2.23.9.8 Calculated Points (Attached).

2.23.9.8.1 Provide a package that will create an on-line software pseudo-point in the BMCS system as a result of a series of calculations.

2.23.9.8.2 The calculations required may use operator entered constants, values of other points in the BMCS or values of other calculated points as variables in the equations.

2.23.9.8.3 Provide the means for the calculated points to be used in loops for control purposes similar to any other point in the BMCS.

2.23.9.8.4 Provide the means for points to be created on-line by an authorised operator and formatted into systems for summary purposes, e.g.: power factor, equipment efficiencies, etc.




2.23.9.8.5 Provide the means for totalization of values as part of this package, e.g. energy use totals, flows etc.

2.23.9.8.6 The frequency of calculation shall be operator assignable. Provide the means for a calculation to operate at a frequency equal to the scan rate of the associated input or control loop.

2.23.9.8.7 Provide automatic report printout, of all and selected calculated points, on both a scheduled and on-demand basis.

2.23.9.8.8 Provide the means for high and low alarm and control action limits to be set on calculated and on-demand basis.

2.23.9.8.9 All data shall be stored on spreadsheet files (Microsoft Excel Compatible - latest version, or equivalent).

2.23.9.9 Dynamic Graphical Trending

2.23.9.9.1 This package shall provide the quasi-continuous dynamic trending of system points as selected by the operator. It shall be used, for example, in the monitoring and tuning of control loop performance via the VDU. Selectable systems points shall include analogue inputs, DDC and reset outputs, set-points, accumulator inputs and computed values. Points shall be plotted as they are sampled.

2.23.9.9.2 The concurrent trending of a minimum of 3 selectable points shall be provided. Point values shall be plotted on a selectable rate between every 5 seconds and every 15 minutes.

2.23.9.9.3 Points selected and plotting rates shall be selectable on-line by personnel having the required password level.

2.23.9.9.4 The colour VDU display shall automatically index to the left, or be scrolled as applicable, when the screen becomes full.




2.23.9.9.5 Provide pseudo-continuous analogue graphical trending. Selectable “variable” “X” and “Y” axis scale ranges shall be available to the user so as to enhance the visual resolution of any trend. Engineering units shall be clearly identified on a display. Provide variable axis scaling to accommodate, at minimum, selectable full screen spans in the range of 5% to 100% of the full engineering range of the variable. The time-axis scaling shall accommodate discrete selectable range spanning, at minimum, 2 minutes to 180 minutes.

2.23.9.9.6 Provide differentiation between individual trends on display.

2.23.9.9.7 All data shall be stored on spreadsheet files (Microsoft Excel Compatible - latest version or equivalent).

2.23.9.10 Interlocking Programmes

2.23.9.10.1 Provide a software routine, that may be utilised on line, to achieve interlocking control sequences. The initial package shall be constructed to meet the sequence of operation described elsewhere in the Specification. This package shall enable the Operator, however, to add/delete/change interlocks. The package shall be such that interlock sequences may be (re)constructed by the trained, authorised representative of the Owner.

2.23.9.10.2 The routine shall utilise logical statement with the following minimal operators:

Or/and/nor/and logical operators.

Time delay to energise.

Time delay to de-energise.

Greater than/less than comparators.

Accumulator points.

Calculated points.

PID algorithms.

Analogue limits, alarms, outputs and setpoints.

Arithmetic operators.




2.23.9.10.3 Provide the means for any function ordinarily performed to be executed as a result of an interlock statement execution.

2.23.9.10.4 Provide the means for statements to be constructed utilising any point within the system whether calculated or field values.

2.23.9.10.5 Provide the means for analogue limits to be used in the statements and assignable to interlock statements. An example would be: “If, Fan 1 is ON and space temperature in less than the low alarm limit, them Pump 1 shall be ON”.

2.23.9.10.6 The interlock routines shall have priorities assigned such that one interlock may take precedence over another. For example “If Zone 1 is in smoke conditions, Fan 1 shall be OFF”. If this statement has higher priority than other interlock sequences involving Fan 1, it shall override the other interlocks.

2.23.9.11 Database Management

2.23.9.11.1 Provide an on-line database spreadsheet management package to enable changes, redefinitions, deletions and additions to be made to the BMCS on-line database to be provided under this Subcontract.

2.23.9.11.2 Provide on-line access from any system keyboard.

2.23.9.11.3 Provide the means for an Operator to obtain, on-line, hard-copy reports of data base definitions and a point/system/building/total BMCS basis.

2.23.9.11.4 Operator use of this package shall be echoed at the terminal at which they are made.

2.23.9.11.5 Provide the means for an authorised Operator to delete, modify and add points and systems on-line via this package.

2.23.9.12 Historical Data Recording and Reporting

2.23.9.12.1 Provide a package for the on-line storage and recall of historical data in a graphical and spreadsheet form. This programme shall be applicable for, at minimum, 1000 BMCS points or computed values which shall be sampled at an Operator selected scan rate of between once every second to once per day. At minimum, 3000 samples of data shall be stored for each point assigned to this feature by the Operator onto the hard disk of the Central Processing Unit.




2.23.9.12.2 Upon an Operator request, data shall be output in graphical or tabular form. A selectable output span from 12 to 3000 samples shall be available. Output of data shall be at the device specified by the Operator.

2.23.9.12.3 Provide up to 6 Operator selectable points on each graphical / tabular output to enable comparison between system variables. The time span covered by the data shall be selectable by the Operator.

2.23.9.12.4 Points associated with this package shall be Operator selected and on-line definable.

2.23.9.12.5 The engineering ranges corresponding to the variables shall be clearly indicated on the data output.

2.23.9.12.6 Where incomplete data is available during the period specified, for such reasons as a sensor malfunction or computer system down-time, then it shall be clear in the data presentation that data for this period is not available.

2.23.9.12.7 The graphical form shall be output on the colour graphic VDU and shall be in the form of continuous line X-Y plots. Each trace shall be clearly differentiated. The tabular form of historical data shall be output on a printer or on a VDU as selected by the Operator. Should more than one location be provided with a colour VDU under this Subcontract, or in the future, then it shall be possible to obtain this feature at different locations independently of each other and concurrently.

2.23.9.12.8 The “X” and “Y” axes for the graphical form shall be established by an interactive programme.

2.23.9.12.9 The X (horizontal) axis shall be suitably scaled to match the time period covered by the requested historical data. The time period shall be determined by the operator, who shall indicate the start and finish times. These times shall be within the previous 90 days.

2.23.9.12.10 An authorised Operator shall be able to indicate the time span and points for which historical data graphs are required. The BMCS shall indicate on the VDU the minimum and maximum values for each point during the relevant Y axis scaling factors.

2.23.9.12.11 If only one engineering units range is required for the variables.




2.23.9.12.12 To be displayed in the graphical form, then the Y axis shall be shown in the relevant engineering units range and the system shall automatically select a range which will allow for the maximum visual resolution of the information to be displayed.

2.23.9.12.13 If more than one engineering units range is selected for a single display then the Y axis shall be scaled from 0 to 100 in intervals of 10. The engineering ranges corresponding to the 0 to 100 scale shall be clearly indicated on the graph for each individual trace.

2.23.9.12.14 The X-Y scales shall be arranged such that they utilise the maximum space on the VDU with maximum trend definition.

2.23.9.12.15 Provide an on-demand summary, available to an authorised operator, indicating points having a historical data recording capability.

2.23.9.12.16 An authorised Operator shall be able to add or delete, on-line, points associated with this programme.

2.23.9.12.17 This package shall operate under the password protection facility.

2.23.9.13 Power Fail / Auto Restart

2.23.9.13.1 The BMCS shall monitor the electrical meters from the associated building low voltage main switchgear, and emergency generator as detailed in the Electrical Specification.

2.23.9.13.2 Upon loss of power to a motor controlled by the BMCS the motor control relay(s) shall be de-energised such that the motor cannot restart upon the resumption of power until:

Either:

The Operator manually commands the motor on.

Or:

The BMCS power fail / auto restart program automatically initiates the appropriate restart sequence.




2.23.9.13.3 Where the loss of power has been detected by the BMCS via the monitoring detailed above, the restart sequence shall be initiated automatically by the BMCS when it detects the resumption of power.

2.23.9.13.4 Where the loss of power has not been detected by the BMCS, the motor(s) affected shall not restart upon a resumption of power until the Operator enters a manual command.

2.23.9.13.5 The automatic restart sequence shall be coordinated with the power demand control programmes detailed elsewhere in this Specification. A single restart sequence shall be implemented for motors controlled by the BMCS.

2.23.9.13.6 The restart sequence shall establish the order of start-up for the motors and the time delay between sequential starts. Start-up of equipment shall be undertaken in the same manner in which systems are restarted under normal operating conditions. Only those motors which should be operational in accordance with time schedule or application program requirements shall be started. Where the BMCS monitors a partial building power failure then the affected motors will be started in their order on the overall restart sequence when the return of power is detected by the BMCS.

2.23.9.13.7 Upon loss of electrical power to a Controller or the Central Processing Unit, they shall shut-down in a manner which ensures that there is no damage to any BMCS components or loss of data. No equipment controlled by the BMCS shall be placed in an unacceptable or hazardous operating mode by the BMCS as a result of the loss of power. If the motors controlled by the Controller that has lost power have not themselves lost power, then the motors shall continue to operate.




2.23.9.13.8 Upon restoration of either normal or emergency electrical power to the Controller or Central Processing Unit, they shall recommence programmed operation in an orderly and controlled manner. Equipment controlled by the BMCS shall not be placed in unacceptable or hazardous operating modes by the system during this restart sequence. The BMCS clocks shall be automatically updated from the uninterruptible master real-time clock immediately following stable electrical power restoration and prior to the execution by the BMCS of any equipment restart schedules. The BMCS shall ascertain the status of motors and where the stopping of a motor is identified as corresponding to a power failure monitored by the BMCS then the BMCS shall implement the appropriate automatic restart sequence as detailed above.

2.23.9.13.9 Alarms for the loads that have shut down due to loss of power shall be suppressed during failure. Only those loads failing to respond to a restart command shall be alarmed.

2.23.9.13.10 Provide the means for an authorised Operator to lockout the restart portion of this programme by entering a single command. Similarly, the Operator shall be able to re-enable the restart portion of this programme by entering a single command.

2.23.9.13.11 The time and date of UPS and / or normal power and / or emergency power termination and commencement shall be automatically logged when power is restored.

2.23.9.13.12 All loads controlled by the BMCS shall be assigned to the auto restart schedule by the BMCS Sub-Contractor in accordance with the direction of the Owner. An Operator having the correct password level shall be able to reassign the order of equipment restarts and the time delay between equipment restarts in any of the automatic restart sequences.

2.23.9.14 Event Messages

2.23.9.14.1 Provide an event message package which permits an expanded message, up to fifty (50) characters, to be output upon the occurrence of a particular event. Provide output event messages as a function of:

Time

Time and Day




Time and Date

Change of state (digital input)

Any alarm condition (BMCS and process alarms)

Any combination of the above

2.23.9.14.2 Provide the means for the generation by an Operator of one hundred (100) such event messages.

2.23.9.14.3 Provide the means for more than one event to be associated with one particular message.

2.23.9.14.4 Provide the means for messages to be input, modified or deleted on-line by an authorised operator.

2.23.9.14.5 Provide the means for an authorised Operator to redefine the relationship between event and message on-line under password control.

2.23.9.14.6 Provide a summary detailing all the event messages and which messages are associated with which events.

2.23.9.14.7 Provide the means for more than one message to be assigned to a particular event thereby enabling a longer total message to be generated as a sequence on individual messages.

2.23.9.15 Post Fire Alarm Equipment Restart

2.23.9.15.1 Upon detection of a fire all of the mechanical equipment in the building will be shutdown by the fire alarm system. All fire alarm system control actions shall override BMCS control.

2.23.9.15.2 The BMCS shall inhibit alarms associated with the terminal air handling units when these unit(s) stop and the BMCS monitoring of the fire alarm point indicates a fire alarm has been enunciated by the fire alarm system.




2.23.9.15.3 Following the return to normal of the fire alarm system an Operator manually entered command shall initiate the restart of any equipment which stopped during the period of the fire alarm and which was not commanded to do so by the BMCS. The restart procedure shall be the same as that detailed for the power fail / auto restart software package. It shall not be possible for the Operator to initiate this restart until the BMCS monitored fire alarm point indicated a non-fire alarm condition.

------------------------------------ PART 300 - EXECUTION ------------------------------------

3.1 WORKMANSHIP

3.1.1 Install all wiring and control systems by regularly employed operators of the Building Management and Control Systems Sub-Contractor.

3.1.2 Run all wiring in a neat and workmanlike manner, in true plumb fashion, adequately clipped and supported to minimise sagging and in full compliance with the latest IEE regulations. Refer to the Electrical Specification for details of trunking, conduit, fixing and clipping requirements.

3.1.3 Installation subject to the approval of the Main Contractor.

3.1.4 Mount all switches/isolators neatly, by the Building Management and Control Systems Sub-Contractor, within 1.5m of the associated individual motor starter or around individual motor control centres.

3.1.5 Provide full shielding of all electrical and control cabling to prevent interference from adjacent equipment and other containment, and also from BMCS Sub-Contractor wiring to prevent interference to other building systems.

3.2 IDENTIFICATION

3.2.1 All thermostats (except room type), transmitters, controllers, valves and dampers to have a nameplate of black Bakelite with white lettering mounted on or adjacent to the device, identifying the reference and description of the device. Where there is more than one system in any one space, each nameplate to bear the system number.

3.2.2 Provide control diagrams laminated between plastic on 6.35mm Masonite board for each system control panel. Mount the diagrams next to the control panels. Identify all devices on the diagrams with the same terminology and references used for the nameplates.

3.3 ACCEPTANCE PROCEDURE




3.3.1 Submittal data relevant to functions, limits, sequences, interlocks, power fail-restart, logs, software routines and associated parameters, and other pertinent information for the operating system and data base.

3.3.2 Upon successful completion of system installation and commissioning, the Main Contractor and Engineer shall be requested, in writing, to inspect and approve the satisfactory operation of the building management and control system, providing notice of at least one week.

3.3.3 Upon receipt of a detailed snagging list from the Main Contractor, an installation inspection report shall be prepared showing, by system, each outstanding item on the snagging list. After all items appearing on the installation inspection report are completed, a second written request for system approval shall be made to the Main Contractor.

3.3.4 The BMCS Sub-Contractor shall furnish the services of competent instructors who will give instruction in the adjustment, operation and maintenance, including pertinent safety requirements, of the equipment and system specified. The training shall be oriented toward the system installed rather than being a general training course. Each instructor shall be thoroughly familiar with all aspects of the subject matter they are to teach. All equipment and material required for classroom training shall be provided by the Sub-Contractor.

3.3.5 The training program shall be accomplished in two phases for the time interval specified for each phase.

3.3.5.1 The first phase shall be given prior to the acceptance test period at a time mutually agreeable between the BMCS Sub-Contractor and Main Contractor, Engineer and Client, and shall be at least five (5) days (8 hours/day) in length. Operating personnel will be trained in the functional operations of the BMCS installed and the procedures that the operators will employ for system operation. The training shall include but not be limited to:

3.3.5.1.1 General BMCS Configuration

3.3.5.1.2 Operation of Computer and Peripherals

3.3.5.1.3 Command Line Mnemonics

3.3.5.1.4 Report Generation

3.3.5.1.5 Operator Control Functions

3.3.5.1.6 Graphics Generation

3.3.5.1.7 General equipment layout

3.3.5.1.8 Troubleshooting procedures

3.3.5.1.9 Preventive Maintenance procedures




3.3.5.1.10 Sensor maintenance and calibration

3.3.5.2 The second phase shall be conducted after system acceptance testing for a period of three (3) days. The training shall include but not be limited to:

3.3.5.2.1 DDC Programming

3.3.5.2.2 Data Base Generation

3.3.5.2.3 Supervisory Level Operator Commands

3.3.5.2.4 Topics requested by Client.

3.4 CALIBRATION AND COMMISSIONING

3.4.1 The BMCS Sub-Contractor shall perform a three-phase commissioning procedure consisting of field I/O calibration and commissioning, system commissioning and integrated system program commissioning. All commissioning information shall be documented on commissioning data sheets, which will be submitted prior to acceptance testing. The Main Contractor shall be notified in writing of the testing schedule so that operating personnel may observe calibration and commissioning.

3.4.2 Field I/O Calibration and Commissioning

3.4.2.1 Prior to system program commissioning, the BMCS Sub-Contractor shall verify that each control device has been installed according to the shop drawings and shall test, calibrate, and bring on-line each control device. Commissioning shall include but not be limited to:

3.4.2.1.1 Sensor range.

3.4.2.1.2 Sensor accuracy at 10, 50 and 90% of range.

3.4.2.1.3 Verify analogue limit and binary alarm reporting.

3.4.2.1.4 Point value reporting.

3.4.2.1.5 Binary alarm and switch settings.

3.4.2.1.6 Actuator ranges.

3.4.2.1.7 Failsafe position on loss of control signal, and electric supply.

3.4.2.2 Calibration and test data shall be recorded on commissioning data sheets and submitted. Data sheets shall include the device designation, the date of commissioning and name of person who performed commissioning.

3.4.3 System Program Commissioning




3.4.3.1 After control devices have been commissioned, each DDC program shall be put on-line and commissioned. The Contractor shall confirm that the DDC program logic follows the approved software flow chart and sequence of operation. Each control loop shall be adjusted to provide stable control and control within the specified accuracies. System program commissioning results and loop adjustments shall be recorded on commissioning data sheets and submitted.

3.4.4 Integrated System Commissioning

3.4.4.1 After all DDC programs have been commissioned, the BMCS Sub-Contractor shall verify the overall system performs as specified. Tests shall include but not be limited to:

3.4.4.1.1 Data communication, both normal and failure modes

3.4.4.1.2 Fully loaded system response time

3.4.4.1.3 Impact of component failures on system operation

3.4.4.1.4 Time/date changes

3.4.4.1.5 End of month/end of year operation

3.4.4.1.6 Global application programs

3.4.4.1.7 System backup and reloading

3.4.4.1.8 System status displays

3.4.4.1.9 Diagnostics

3.4.4.1.10 Power fail restart procedure

3.4.4.1.11 Battery backup

3.4.5 Non-DDC Subsystems

Subsystems not controlled by DDC shall also be tested and commissioned.

3.4.6 All systems shall be commissioned for practical completion as per the Main Contractor’s programme. However for certain systems that depend on the maximum and minimum design conditions, the Building Management Sub-Contractor shall allow for repeat visits to “fine tune” the systems in order to complete the commissioning. This additional commissioning shall be particular, but not limited to the following systems:-

3.4.6.1 Chilled water and condenser water systems

3.4.6.2 Air Handling Units

3.4.6.3 Ventilation Systems

3.4.6.4 Exhaust Systems




3.4.6.5 Domestic Water Systems

3.4.6.6 Electrical Systems

3.4.7 All motor control centres/panels shall be fully tested and certified at works, with submittals issued to the Main Contractor and passed, prior to delivery. Witness testing of the complete panel prior to release from works shall also be included for two people, the Main Contractor and the Engineer representatives including travel and accommodation (if an overnight stay is required)

3.4.8 All frequency inverters shall be commissioned to correspondingly modulate the control voltage to suit the output signal determined by the BMCS, in conjunction with other Contractors.

For example, if the BMCS signals the Chilled water secondary pumps to go to 50% of full flow, then the frequency inverter shall have been commissioned to produce this output, with perhaps a signal voltage of 8V (indicative only) from the BMCS (full range 0-24V). The exact signal required to achieve the 50% flow shall be calculated at the time of commissioning in coordination with the Sub-Contractor.

3.5 ACCEPTANCE TESTING

3.5.1 The BMCS Sub-Contractor shall submit a detailed acceptance test procedure designed to demonstrate compliance with contract requirements at least 4 weeks before the start of BMCS testing. This procedure shall be approved prior to the start of the testing. The acceptance test procedure shall describe, step by step, how each type of point, application program, control program and other system function will be demonstrated during acceptance testing. The procedures shall generally follow the commissioning procedures described above.

3.5.2 During acceptance testing provide services of a fully qualified building automation technician who is knowledgeable of the project.

3.5.3 Using the commissioning test data the Main Contractor, Engineer and Client representative shall select, at random, functions to be demonstrated. These functions shall be demonstrated by the BMCS Sub-Contractor in accordance with the acceptance test procedure. As required by the Main Contractor between 15 and 100 percent of the system's functions shall be demonstrated. At least 95% of the functions demonstrated must perform as specified and documented on commissioning data sheets or the system must be re-tested after faults have been corrected.

3.5.4 Test instruments required shall be furnished by this BMCS Sub-Contractor. Submit catalogue data on all instruments for approval prior to performance of tests.

Instrument Accuracy

Temperature: 0.125°C or 0.5% of full scale, whichever is less




Pressure: 3.5 KPA or 0.5% of full scale, whichever is less

Humidity: 2% RH

Electrical: 0.25% of full scale

3.5.5 Endurance Test

After the above acceptance tests are complete and the system is demonstrated to be functioning as specified, a thirty-day endurance test period shall begin. If the system functions as specified throughout the endurance test period requiring only routine maintenance and adjustment, the system shall be accepted. If during the endurance test period the system fails to perform as specified and cannot be corrected within eight hours, the Client may request that the endurance test be repeated after problems have been corrected.

3.6 SYSTEMS SEQUENCE OF OPERATION

3.6.1 Chilled Water System

3.6.1.1 The chilled water system consists of 4 No. water cooled chillers (CHLR-1,2,3&4) in the basement 2 plant room, with 1 No. dedicated primary chilled water pump per chiller (P-6, 7, 8 & 9). Secondary chilled water pumps will then distribute the chilled water to various circuits serving air handling units, tenant fan coil units and heat exchangers. Heat Exchangers and their associated secondary chilled water pumps are used as pressure breaks within the tower. The secondary circuits downstream of each heat exchanger have dedicated secondary pumps, pressurisation units and controls to distribute chilled water to the air handling units, fan coil units and A/C units, etc in their respective zones.

3.6.1.2 The primary chilled water pumps (P-6,7,8,9&10) are sequenced with the 4 No. chillers, with 1 No. standby pump (P-10). The primary pumps are headered together so that the number of chillers and primary pumps in operation are always matched. Any one pump can operate with any one chiller. The BMCS shall provide auto changeover to the standby primary pump in the event of failure of the running pump (via differential pressure sensors). The primary pumps shall be automatically scheduled by the BMCS to change over in their sequence of starting (i.e., once per week - adjustable) so that even wear is placed upon all 5 No. primary pumps.




3.6.1.3 When the BMCS calls for cooling, as determined by a rise in the primary return chilled water temperature above the setpoint (initial setting 13°C), 1 No. chiller shall be started by the BMCS in the auto mode. The BMCS shall sequence the order of the starting of the chillers on a weekly basis to provide even wear on all 4 chillers. When the first of four chillers is given the command to start, 1 No. primary pump shall be started and the motorised valve at the inlet to the chiller shall be sequenced open. When the chiller’s flow switch has signalled proper chilled water flow, the chiller shall be started.

3.6.1.4 After a time delay of 15 minutes (adjustable), if the return primary chilled water is still above the setpoint, the BMCS shall signal the next chiller in sequence to start. If the primary return water temperature falls below 12°C (adjustable) after 15 minutes, 1 No. chiller shall be turned off. This control sequence is to be repeated until all 4 No. chillers are in operation or all 4 No. chillers are off. The chillers shall control their own discharge temperatures via their factory controls. The initial setting for the chilled water discharge temperature is 5°C. Chilled water discharge temperatures from the chillers shall be capable of remote re-set from the BMCS (co-ordinate with the chiller manufacturer).

3.6.1.5 The chilled water systems serving the tower and the podium each have 1 No. duty and 1 No. standby pump (P-11A, P-11B, P-12A, 1 2B, 13A, 13B, 14A, 14B,15A,15B,16A,16B). All pumps have variable frequency motor drives (VFDs) to vary the secondary chilled water flows in response to the loads. The VFDs for pumps P-11, P-12 and P-13 shall vary the flow into the primary side of the plate heat exchangers (PHX-1A, PHX-1B, PHX-2A, PHX-2B, PHX-3A, PHX-3B) to maintain the secondary side chilled water supply temperatures (see Drawing M-202 for initial temperature setpoints).

3.6.1.6 The VFDs for the pumps on the secondary side of the plate heat exchangers shall be controlled by the pressures in the chilled water systems. Pressure sensors located 2/3 of the distance in the piping system from the pump.

3.6.1.7 All valves serving the fan coil units, air handling units and fresh air units shall be 2-port modulating valves to ensure the VFDs throttle the pumps to the lowest setting. VFDs shall have a minimum flowrate of 15 HZ. All pumps shall be started by the BMCS in the auto mode at low speed and shall ramp up and down as required to meet the loads. The secondary chilled water pumps consist of run and standby pumps which shall be controlled via the BMCS to provide auto changeover in the event of failure of the running pump (via differential pressure sensors). The run pump shall also be automatically scheduled to change over (i.e., once per week - adjustable).




3.6.1.8 The secondary chilled water pumps shall act under the dictates of pressure differential sensors across the chilled water flow and return pipework of the circuit via the frequency inverter drives. Each pump shall have a dedicated variable speed drive with an automatic bypass to allow the pump(s) to run at 100% should any variable speed drive unit fail.

3.6.1.9 The chilled water system shall be pressurised via packaged pressurisation units consisting of expansion vessels, run and standby pumps, break tank and integral controls. The unit shall operate 24 hours per day acting under its integral controls to maintain the system within the required static head. The BMCS shall monitor the pressurisation unit and monitor all alarm conditions (i.e., low pressure/high pressure/pump failure, low water level in break tank, etc.) via volt free contacts.Should excessive low or high pressure exist, an alarm signal shall be initiated.

3.6.2 Cooling Towers

3.6.2.1 The 4 No. cooling towers located on the podium roof shall be interlocked with the chiller plant operation through the BMCS. When the BMCS calls for the operation of 1 No. chiller in the auto mode in the sequence described above, 1 No. condenser water pump shall be activated and 1 No. cooling tower shall be activated. When the chiller flow switch senses flow through the condenser and the evaporator, the chiller shall be started (as described above).

3.6.2.2 The fans in the cooling tower will be controlled to maintain the schedulled leaving condenser water temperature. When the BMCS calls for the number of chillers in operation to be increased, the corresponding number of cooling towers will be started. As chillers are turned off, the cooling towers will be turned off in sequence. The BMCS shall change the starting sequences for the 4 No. condenser water pumps (P-1, 2, 3 & 4) and the 4 No. cooling towers (CT-1, 2, 3 & 4) on a weekly basis to ensure even wear on the equipment.

3.6.3 Office and Retail Fan Coil Units

3.6.3.1 The office Fan Coil Units (FCUs) will be monitored by the BMCS, with the BMCS having the ability to remotely control the FCU operation. The FCUs shall have individual factory-provided standalone DDC controls.

3.6.3.2 The fan coil unit controls shall operate on 24 volts AC derived from a transformer local to each fan coil unit. The space temperature shall be scheduled by the space temperature sensor controlling the cooling motorised control valves on the fan coil unit.

3.6.3.3 All fan coil units shall be shut down in a fire condition via contactors on the fan coil unit distribution boards, wired to the fire alarm system.




3.6.4 Fresh Air Handling Units

3.6.4.1 The BMCS shall be capable of stopping and starting the air handling units. The units shall be controlled via a temperature sensor in the supply air duct to maintain a constant supply air temperature (adjustable) by modulating the two-port motorised valves on the cooling coils of each unit. For supply temperatures on the various systems, please refer to the air handling unit schedules.

3.6.4.2 Operation of the fan on each unit shall be confirmed by a differential pressure sensor across the fan. Filter condition shall be monitored by the BMCS via pressure differential sensors across the filter section. The BMCS shall annunciate a “filter dirty” alarm. The BMCS shall also monitor the position of the motorised dampers on each unit as open or closed.

3.6.4.3 Air handling units shall be shut down in a fire condition via contactors on the air handling unit distribution boards, wired to the fire alarm system.

3.6.5 Main Garbage Room Systems

3.6.5.1 The BMCS shall be capable of stopping and starting the air handling units serving the Main Garbage rooms. The units shall be controlled via a temperature sensor in the supply air duct to maintain a constant supply air temperature of 17°C (adjustable) by modulating the two port motorised valves on the cooling coils of each unit.

3.6.5.2 To achieve the space temperature required and to mentain 24 hour operation the cooling will be achieved by using a DX system.

3.6.5.3 Operation of the fan on each unit shall be confirmed by a differential pressure sensor across the fan. Filter condition shall be monitored by the BMCS via pressure differential sensors across the filter section. The BMCS shall annunciate a “filter dirty” alarm. The BMCS shall also monitor the position of the motorised dampers on each unit as open or closed.

3.6.5.4 Air handling units shall be shut down in a fire condition via contactors on the air handling unit distribution boards, wired to the fire alarm system.

3.6.6 Toilet & Kitchen Extract Systems

3.6.6.1 The Toilet & Kitchen Extract fan systems consist of a run and

standby fan units. The fans shall be capable of being stopped and started by the BMCS. The operation of the fans shall be confirmed by differential pressure switches across the fans.




3.6.6.2 Provide an auto changeover control facility within the MCC and differential pressure sensors across each fan to monitor the fan status and operate the changeover sequence. The run fan shall be automatically scheduled to change over (i.e. once per week – adjustable).

3.6.6.3 The BMCS shall provide auto change over in the event of failure of the run fan(s) via pressure differential switches. The run fans shall be automatically scheduled to change over (i.e., once per week - adjustable).

3.6.7 Garbage Room Extract Fans

3.6.7.1 The Garbage Room Extract consists of run and standby in line extract fan, which shall be time scheduled controlled and shall have a local speed controller.

3.6.7.2 The fan shall be capable of being stopped and started by the BMCS. The operation of the fan shall be confirmed by a differential pressure switch across the fan.

3.6.8 Leak Detection Systems

3.6.8.1 Fuel oil leak detection systems shall be installed to the following areas:

3.6.8.1.1 Fuel Oil Tank Room

3.6.8.1.2 Generator Room (including generator drip trays)

3.6.8.2 Each system shall operate independently via its own control panel.

The BMCS shall monitor each control panel for system failure, system operating, leak detection alarm and power failure, via volt free contacts on the control panels.

3.6.8.3 On detection of a fuel oil leak in any area the control system shall disable both fuel oil pumps and initiate an alarm. Should a fuel leak be detected anywhere within the generator room the generator shall be disabled and an alarm initiated.

3.6.8.4 The fuel oil leak detection panel shall be located in the BMCS Room.

3.6.9 Water Supply Systems

3.6.9.1 The incoming mains water supply will be metered at the point of entry onto the site via a utility meter. Provide a separate water meter for connection to the BMCS to enable the water usage to be monitored.




3.6.9.2 High and low level water alarms shall also be annunciated at the BMCS. Provide high and low level float switches for this facility. Operation of the low water level switch shall also disable the cold water booster sets.

3.6.10 Sprinkler Tanks

3.6.10.1 High and low level water alarms shall also be annunciated at the BMCS. Provide high and low level float switches for this facility.

3.6.11 Drainage Pumps

3.6.11.1 The BMCS shall monitor the foul water drainage pumps via volt free contracts to annunciate pump run and pump fail (two sets of pumps per system).

3.6.12 Cold Water Booster Sets

3.6.12.1 The packaged cold water booster sets, shall operate under the dictates of its own control system. The BMCS shall monitor the set, via volt free contacts for pump run/failure and high pressure/low pressure alarms.

3.6.13 Sprinkler Pump Sets

3.6.13.1 The Sprinkler pump sets, shall operate under the dictates of its own control system. The BMCS shall monitor the set, via volt free contacts for pump run/failure and high pressure/low pressure alarms.

3.6.14 Hosereel System

3.6.14.1 The BMCS shall monitor the packaged hosereel booster set for a common fault signal only. The hosereel set shall operate under the dictates of its own integral control system

3.6.15 Lifts

3.6.15.1 The lifts shall operate via their own control system. The BMCS shall monitor each lift for lift failure alarms.

3.6.16 Fire Alarm Interface

3.6.16.1 Hard wired interfaces shall be provided together with addressable relays from the main fire alarm panel to all motor control centres.

3.6.16.2 All air handling plant, extract fans, supply fans, fan coil units, and all other non life safety equipment shall shut down in the event of a fire condition. A test isolation function via a key switch on the main fire alarm panel such that the main fire alarm system can be tested without shutting down this equipment will be provided under Division 16000.




3.6.16.3 Shutting down of fan coil units, air handling units, etc shall be achieved by interrupting the power supply to the units at the main distribution board, using hard wired interlocks.

3.6.16.4 The chilled water pumps, pressurisation units and all other plant required to operate the chilled water system shall remain enabled to run if required, during a fire condition.

3.6.16.5 Re-starting of plant shall be carried out via the BMCS with automatic delayed re-start periods to ensure all plant is not re-energised simultaneously.

3.6.17 Security Systems

3.6.17.1 Provide a link to the security system head end to pick up a common alarm signal that can be displayed on the BMCS.

3.6.17.2 Also provide a common plant failure alarm from the BMCS to the security system.

3.6.17.3 The BMCS shall monitor the equipment for up to six alarm/status items.

3.6.18 Fuel Oil System

3.6.18.1 The fuel oil system to serve the standby diesel generator includes the following plant:

3.6.18.1.1 Fuel Oil Pumps

3.6.18.1.2 Main Fuel Oil Storage Tank

3.6.18.1.3 Day Storage Fuel Oil Tank

3.6.18.2 The fuel oil system shall be enabled continuously to operate when required and shall be part of the life safety systems as the generator feeds life safety equipment. All control systems shall be hard wired in MICC cabling.

3.6.18.3 The fuel oil pumps shall consist of run and standby pumps which shall be controlled via the BMCS to provide auto change over in the event of failure of the run pump (via flow switches). The run pump shall also be automatically scheduled to change over (i.e. once per week – adjustable).

3.6.18.4 Control of the run pump shall be via high and low level float switches in the Day Storage Tank. The BMCS shall monitor the Day Tank float switches for status.

3.6.18.5 The Main Fuel Oil Storage tank shall also be provided with high and low level float switches which the BMCS shall monitor for status.

3.6.18.6 The fuel oil pumps shall stop if any one or more of the following conditions occur:




3.6.18.6.1 Low level alarm in the Main Fuel Oil Storage Tank

3.6.18.6.2 High level alarm in the Day Tank

3.6.18.6.3 Leak detection alarm in the Fuel Oil Tank Room

3.6.18.6.4 Leak detection alarm in the Generator Room

3.6.18.6.5 Fire alarm in the Fuel Oil Tank Room and/or Generator Room only.

3.6.18.6.6 Heat detectors within generator set.

3.6.18.7 In the event of a fire alarm condition in the Generator Room the solenoid valve on the Day Tank dump line shall open (valve arranged to fail open). In the event of a fire condition in the Fuel Oil Tank Room, the fire shut off solenoid valve shall close (valve arranged to fail closed). The Day Tank dump valve shall be provided with a generator backed electrical supply.

3.6.19 Smoke Extract & Stair Pressurisation Systems

3.6.19.1 The smoke extract systems are life safety systems and therefore all control systems shall be hardwired in MICC cabling.

3.6.19.2 The smoke extract fans are to operate as duty and standby in a fire condition.

3.6.19.3 For the tower, each grouping of extract fans are to operate as run and standby, with automatic changeover arranged via air flow sensors on each fan discharge. Refer to the Fire Strategy Document for the full description of the operation of the fans in a fire situation.

3.6.19.4 For the office tower, the dampers on the general extract/smoke extract shafts shall all be closed except for the floor of fire incidence where the extract dampers shall be opened. The fresh air fans shall operate and supply outside air on the floor immediately above and immediately below the fire floor. The dampers in the risers for the fresh air system on the fire floor and all other floors except the floor above and below the fire floor shall be closed.

3.6.19.5 Manual override of the operation of all smoke fans and fire/smoke dampers shall be provided via key switches on the Fireman’s Panel. The smoke extract systems shall run continuously until manually overridden.

3.6.19.6 Each set of stair pressurisation fans shall operate as run and standby with automatic changeover arranged via air flow sensors on each fan discharge. All stair pressurisation systems shall operate simultaneously upon a fire condition anywhere in the building.

3.6.19.7 Operation of the stair pressurisation system shall automatically open the motorised fire/smoke damper on the pressure relief duct.




3.6.19.8 Manual override of the operation of all stair pressurisation fans and motorised dampers shall be provided via key switches on the Fireman’s Panel in the Fire Command Centre.

3.6.19.9 All stair pressurisation systems shall run continuously until manually overridden, or are automatically shut down by detection of smoke in the inlet duct(s).

3.6.19.10 The BMCS shall monitor the status and operation of all smoke extract fans, stair pressurisation fans and motorised fire/smoke dampers.

3.6.20 Basement Plantroom Ventilation System

3.6.20.1 Basement plant areas are to be served via fresh air fans and extract fans. The BMCS shall be capable of stopping and starting the fans. Operation of the supply and extract fan shall be confirmed by a differential pressure sensor. The extract fans shall operate as run and standby, controlled via the BMCS to provide auto change over in the event of failure of the run fan (via air flow sensors). The fans shall also be automatically scheduled to changeover (i.e. once per week – adjustable).

3.6.20.2 The basement ventilation systems shall also operate as a smoke ventilation system. Each room served shall have a fire/smoke damper on the supply and extract connection.

3.6.20.3 The Basement smoke extract system is a life safety system and therefore all control systems shall be hard wired in MICC cabling.

3.6.20.4 The BMCS shall monitor the status and operation of all smoke extract fans and motorised fire/smoke dampers.

3.6.21 Lift Motor Room A/C Systems

3.6.21.1 The Lift Motor Room shall be provided with air conditioning systems which will be of the DX type to provide 24 hour protection. The system will operate under the dictates of a space temperature sensor arranged to start both systems should the temperature reach 35°C (adjustable).

3.6.22 Car Park Ventilation

3.6.22.1 The Basement Level car park shall be provided with a mechanical ventilation system comprising of main extract fan systems, fresh air fans and carbon monoxide (CO) sensors. The supply and extract fans shall be cycled on and off under the control of CO sensors. When the Carbon Dioxide level falls below 1000 ppm the fans shall be cycled off.

3.6.22.2 In normal operation the BMCS shall be capable of stopping and starting the main extract fans. Operation of all fans shall be confirmed by differential pressure sensors across the fans.




3.6.22.3 The operation of the main extract fans shall be time scheduled by the BMCS. They shall also operate under the dictates of carbon monoxide (CO) monitoring systems which shall start the run extract and suply fan.

3.6.22.4 All extract fans and supply fans shall also operate as smoke extract fans, operated via the fire alarm system. Provide variable speed controllers for all the main extract fans. The car park smoke extract system is a life safety system and therefore all control systems shall be hard wired in MICC cabling.

3.6.23 Retail Units

3.6.23.1 Each of the retail units are to be provided with valved and capped chilled water connections for tenant use. Each set of chilled water connections shall be provided with individual energy monitoring systems comprising of the following:

3.6.23.1.1 Flow water temperature sensor

3.6.23.1.2 Return water temperature sensor

3.6.23.1.3 Water flow volume meter

3.6.23.1.4 Controller unit

3.6.23.2 All controller units shall be complete with integral software to monitor energy usage, and shall be located in the BMCS Room. Each unit shall be linked to the BMCS to provide duplication of information. The BMCS shall be capable of trend logging all energy usage information.

3.6.24 Standby Diesel Generator/Power Management System

3.6.24.1 The BMCS shall monitor the standby generator for the following conditions:

3.6.24.1.1 Generator running

3.6.24.1.2 Generator common alarm

3.6.24.1.3 Generator failed to start

3.6.24.1.4 Transfer switch connected to emergency (generator online).

3.6.24.2 Additionally, the BMCS shall control the generator fuel oil system

3.6.25 Battery Back-up

3.6.25.1 All BMCS outstations shall be provided with integral 18 hour battery

back-up for stand alone operation.




3.6.26 LV Switchroom Cooling

3.6.26.1 Cooling to the LV Switchroom is provided by cooling only fan coil units. The units operate simultaneously and shall be controlled via a room thermostat. The BMCS shall be capable of stopping and starting the fan coil units and adjusting the room set point. Operation of the fans shall be confirmed by differential pressure sensors across each fan.

3.6.27 Fire/Smoke Dampers

3.6.27.1 All fire/smoke dampers and normal motorised dampers shall be 24 volt type. The dampers shall be provided and installed by the Mechanical Contractor. The BMCS sub-contractor shall provide and fit all damper actuators and provide all wiring and containment. Provide fire rated cabling for all dampers where used for life safety systems.

3.6.28 Spare Capacity

3.6.28.1 The BMCS head end hardware and software shall include capacity for up to a minimum of 2000 additional points for future expansion.

3.6.29 Fresh Air Handling Units

3.6.29.1 The BMCS shall be capable of stopping and starting each air handling unit individually. The units shall be controlled via a temperature sensor in the supply air duct to maintain a constant supply air temperature as scheduled (adjustable) by modulating the two port modulating valve in the cooling coil of each unit. Each fresh air supply unit shall draw 100 percent outside air into the unit and the modulating valve shall maintain a constant 22°C discharge temperature throughout the year.

3.6.29.2 Operation of the fan on each unit shall be confirmed by a differential pressure sensor across the fan. Filter condition shall be monitored by the BMCS via pressure differential sensors across the filter section. The BMCS shall annunciate a “filter dirty” alarm. The BMCS shall also monitor the position of the motorised dampers on each unit as open or closed. Air handling units shall be shut down in a fire condition via contactors on the air handling unit distribution boards, wired to the fire alarm system.

3.7 POINTS SCHEDULES

Refer to Section 17902 for thePoint Schedules.




END OF SECTION