installation instructions dcc series series 15...calculations published by the air conditioning...

© 2013, 2015-2017 5151 San Felipe St., Suite 500, Houston, TX 77056

www.daikinac.com

ATTENTION INSTALLING PERSONNEL:Prior to installation, thoroughly familiarize yourself withthis Installation Manual. Observe all safety warnings. Dur-ing installation or repair, caution is to be observed.

It is your responsibility to install the product safely and toeducate the customer on its safe use.

RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

These installation instructions cover the outdoor installation ofsingle package heating and cooling units. See the SpecificationSheet applicable to your model for information regardingaccessories.

*NOTE: Please contact your distributor or our website for theapplicable Specification Sheet referred to in this manual.

Our continuing commitment to quality products may mean a change in specifications without notice.

DCC SERIESLIGHT COMMERCIAL PACKAGED HEATING AND COOLING UNIT15 to 25 TON

IndexReplacement Parts ................................................................ 2

Safety Instructions ................................................................ 2

General Information ............................................................. 2

Unit Location ........................................................................ 3

Clearances ............................................................................ 5

Roof Curb Post-Installation Checks ....................................... 6

Roof Top Duct Connections ................................................... 6

Rigging Details ...................................................................... 6

Electrical Wiring .................................................................... 7

Circulating Air and Filters ...................................................... 9

Condensate Drain Connection .............................................. 9

Startup, Adjustments, and Checks ...................................... 10

Airflow Adjustments ........................................................... 11

Motor Sheave Adjustments ................................................ 12

Maintenance ...................................................................... 13

Appendix A Blower Performance Data ................................ 15

Belt Drive - Standard ..................................................... 15

Belt Drive - High Static ................................................... 16

Appendix A Economizer Pressure Drop................................17

Appendix B Electrical Data .................................................. 18

Appendix C Unit Dimensions ............................................... 21

Appendix D Wiring Diagrams .............................................. 22

Wiring Diagrams for Models With DDC Controls.................. 29

Start-up Checklist ................................................................ 34

NOTE: 15 & 20 ton model shown in picture.25 ton model has 2 fans.

IOD-1003H

6/2017

INSTALLATION INSTRUCTIONS

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THIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.

WARNING

REPLACEMENT PARTS

ORDERING PARTS

When reporting shortages or damages, or ordering repairparts, give the complete unit model and serial numbers asstamped on the unit’s nameplate.

Replacement parts for this appliance are available throughyour contractor or local distributor. For the location of yournearest distributor, consult the white business pages, theyellow page section of the local telephone book or contact:

EQUIPMENT SUPPORTDAIKIN NORTH AMERICA LLC

19001 KERMIER ROADWALLER, TEXAS 77484

855-770-5678

SAFETY INSTRUCTIONS

TO THE INSTALLER

Before installing this unit, please read this manual tofamiliarize yourself on the specific items which must beadhered to, including maximum external static pressure tounit, air temperature rise and minimum or maximum CFM.

Keep this literature in a safe place for future reference.

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

CAUTION

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

TO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH, DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE.

WARNING

ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE OR REPAIR (HEREINAFTER, “SERVICE”) THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT. THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES. IF YOU SERVICE THIS UNIT, YOU ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY RESULT. IN ADDITION, IN JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL, ONLY LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT. IMPROPER INSTALLATION, ADJUSTMENT, SERVICING OR REPAIR OF THE EQUIPMENT SPECIFIED IN THIS MANUAL, OR ATTEMPTING TO INSTALL, ADJUST, SERVICE OR REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER TRAINING MAY RESULT IN PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

GENERAL INFORMATION

For complete information and installation instructions formodels with DDC controls, see manual DK-DDC-TGD-XXX

This unit is approved for outdoor installation ONLY. Rated perfor-mance is achieved after 72 hours of operation. Rated performanceis delivered at the specified airflow. See outdoor unit specifica-tion sheet for split system models or product specification sheetfor packaged and light commercial models. Specification sheetscan be found at www.daikinac.com for Daikin brand products.Within the website, please select the residential or commercialproducts menu and then select the submenu for the type of prod-uct to be installed, such as air conditioners or heat pumps, toaccess a list of product pages that each contain links to that model’sspecification sheet.

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To assure that your unit operates safely and efficiently, it must beinstalled, operated, and maintained in accordance with these in-stallation and operating instructions, all local building codes andordinances.

EPA REGULATIONS

IMPORTANT: THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA)HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSAL

OF REFRIGERANTS IN THIS UNIT. FAILURE TO FOLLOW THESE REGULATIONS MAY

HARM THE ENVIRONMENT AND CAN LEAD TO THE IMPOSITION OF SUBSTANTIAL

FINES. BECAUSE REGULATIONS MAY VARY DUE TO PASSAGE OF NEW LAWS, WE

SUGGEST A CERTIFIED TECHNICIAN PERFORM ANY WORK DONE ON THIS UNIT.SHOULD YOU HAVE ANY QUESTIONS PLEASE CONTACT THE LOCAL OFFICE OF THE

EPA.

NATIONAL CODES

This product is designed and manufactured to permit installationin accordance with National Codes. It is the installer’s responsibil-ity to install the product in accordance with National Codes and/or prevailing local codes and regulations.

The heating and cooling capacities of the unit should be greaterthan or equal to the design heating and cooling loads of the areato be conditioned. The loads should be calculated by an approvedmethod or in accordance with ASHRAE Guide or Manual J - LoadCalculations published by the Air Conditioning Contractors ofAmerica.

Obtain from:

American National Standards Institute25 West 43rd Street, 4th Floor

New York, NY 10036

System design and installation should also, where applicable, fol-low information presented in accepted industry guides such as theASHRAE Handbooks. The manufacturer assumes no responsibilityfor equipment installed in violation of any code or regulation. Themechanical installation of the packaged roof top units consists ofmaking final connections between the unit and building services;supply and return duct connections; and drain connections (if re-quired). The internal systems of the unit are completely factory-installed and tested prior to shipment.

Units are generally installed on a steel roof mounting curb assem-bly which has been shipped to the job site for installation on theroof structure prior to the arrival of the unit. The model numbershown on the unit’s identification plate identifies the various com-ponents of the unit such as refrigeration tonnage, heating inputand voltage.

Carefully inspect the unit for damage. Any bolts or screws whichmay have loosened in transit must be re-tightened. In the eventof damage, the receiver should:

1. Make notation on delivery receipt of any visible damageto shipment or container.

2. Notify carrier promptly and request an inspection.3. In case of concealed damage, carrier should be notified as

soon as possible-preferably within 5 days.

4. File the claim with the following supporting documents:a. Original Bill of Lading, certified copy, or indemnity bond.b. Original paid freight bill or indemnity in lieu thereof.c. Original invoice or certified copy thereof, showing trade

and other discounts or reductions.d. Copy of the inspection report issued by carrier

representative at the time damage is reported to thecarrier. The carrier is responsible for making promptinspection of damage and for a thorough investigationof each claim. The distributor or manufacturer will notaccept claims from dealers for transportation damage.

NOTE: When inspecting the unit for transportation damage,remove all packaging materials. Recycle or dispose of the packagingmaterial according to local codes.

PRE-INSTALLATION CHECKS

Carefully read all instructions for the installation prior to installingunit. Ensure each step or procedure is understood and any specialconsiderations are taken into account before starting installation.Assemble all tools, hardware and supplies needed to complete theinstallation. Some items may need to be purchased locally.

UNIT LOCATION

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

IMPORTANT NOTE: Remove wood shipping rails prior to installa-tion of the unit. See important note under Roof Curb InstallationOnly.

ALL INSTALLATIONS:

IMPORTANT NOTE: Unit should be energized 24 hours prior tocompressor start up to ensure crankcase heater has suffi-ciently warmed the compressors. Compressor damage mayoccur if this step is not followed.

NOTE: Appliance is shipped from factory for vertical ductapplication.Proper installation of the unit ensures trouble-free operation. Im-proper installation can result in problems ranging from noisyoperation to property or equipment damages, dangerous condi-tions that could result in injury or personal property damage. Givethis booklet to the user and explain it’s provisions. The user shouldretain these instructions for future reference.

• For proper operation and condensate drainage, the unitmust be mounted level.

• The flue outlet hood must be at least three feet above anyforced air inlet located within ten feet. The economizer/manual fresh air intake/motorized fresh air intake andcombustion air inlet mounted on the unit are not affectedby this restriction.

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• Do not locate the unit in an area where the outdoor air(i.e. combustion air for the unit) will be frequentlycontaminated by compounds containing chlorine orfluorine. Common sources of such compounds includeswimming pool chemicals and chlorine bleaches, paintstripper, adhesives, paints, varnishes, sealers, waxes (whichare not yet dried) and solvents used during constructionand remodeling. Various commercial and industrialprocesses may also be sources of chlorine/fluorinecompounds.

• To avoid possible illness or death of the building occupants,do NOT locate outside air intake device (economizer,manual fresh air intake, motorized fresh air intake) tooclose to an exhaust outlet, gas vent termination, orplumbing vent outlet. For specific distances required,consult local codes.

• Allow minimum clearances from the enclosure for fireprotection, proper operation, and service access (see UnitClearances). These clearances must be permanentlymaintained.

• When the unit is heating, the temperature of the returnair entering the unit must be between 50°F and 100°F.

GROUND LEVEL INSTALLATIONS ONLY:

• When the unit is installed on the ground adjacent to thebuilding, a level concrete (or equal) base is recommended.Prepare a base that is 3” larger than the package unitfootprint and a minimum of 3” thick.

• The base should also be located where no runoff of waterfrom higher ground can collect in the unit.

ROOF TOP INSTALLATIONS ONLY:

• To avoid possible property damage or personal injury, theroof must have sufficient structural strength to carry theweight of the unit(s) and snow or water loads as requiredby local codes. Consult a structural engineer to determinethe weight capabilities of the roof.

• The unit may be installed directly on wood floors or onClass A, Class B, or Class C roof covering material.

• To avoid possible personal injury, a safe, flat surface forservice personnel should be provided.

• As indicated on the unit’s data plate, a minimum clearanceof 36” to any combustible material is required on the accessside of the unit. All combustible materials must be keptout of this area.

• This 36” clearance must also be maintained to insureproper combustion air flow. The combustion air intakemust not be blocked for any reason, including blockage bysnow.

• Adequate clearances from the unit to any adjacent publicwalkways, adjacent buildings, building openings oropenable windows must be maintained in accordance withNational Codes.

UNIT PRECAUTIONS

• Do not stand or walk on the unit.• Do not drill holes anywhere in panels or in the base frame

of the unit (except where indicated). Unit access panelsprovide structural support.

• Do not remove any access panels until unit has beeninstalled on roof curb or field supplied structure.

• Do not roll unit across finished roof without prior approvalof owner or architect.

• Do not skid or slide on any surface as this may damageunit base. The unit must be stored on a flat, level surface.Protect the condenser coil because it is easily damaged.

ROOF CURB INSTALLATIONS ONLY:

Before installing this unit...

IMPORTANT NOTE: This unit has been equipped with a shippingbrace under the compressor section that MUST BE REMOVED be-fore installing the unit on a roof curb.

Please follow the instructions below to remove brace.

WHEN UNIT IS SUSPENDED, BOARDS AND SHIPPING BRACE WILL DROP WHEN SCREWS ARE REMOVED. TO PREVENT PERSONAL INJURY, STAND CLEAR.REMOVE FORK HOLE BRACKETS, BOARDS AND SHIPPING BRACE FROM BOTTOMOF UNIT BEFORE PLACING UNIT ONTO CURB.

CAUTION

1. Remove wooden struts and shipping brace per installationinstructions. The struts are located in the fork holes andare used to protect the unit from damage while lifting withforks. The shipping brace is located underneath the unit(under compressors). Also remove the fork hole bracketsas shown in the following figure.

2. Locate and remove the end brackets as shown in thefollowing graphic.

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LIFT OVER APPROXIMATECENTER OF UNIT

SPREADER BARSMUST BE USED WITHLIFTING STRAPS THATARE LESS THAN 16FEET LONG

REMOVE 2 BRACKETSON EACH END TOREMOVEWOODEN STRUTS

REMOVE 2 BRACKETSON EACH END TO

REMOVESHIPPING BRACE

3. Lift unit per the “Rigging Details” section of this manual,observing all warnings and cautions. When unit is lifted,boards and shipping brace will drop if screws have beenremoved. To avoid injury, STAND CLEAR.

4. Dispose of the boards and brace appropriately.

Curb installations must comply with local codes and should be donein accordance with the established guidelines of the National Roof-ing Contractors Association.

Proper unit installation requires that the roof curb be firmly andpermanently attached to the roof structure. Check for adequatefastening method prior to setting the unit on the curb.

Full perimeter roof curbs are available from the factory and areshipped unassembled. Field assembly, squaring, leveling andmounting on the roof structure are the responsibility of the in-stalling contractor. All required hardware necessary for the as-sembly of the sheet metal curb is included in the curb accessory.

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

• Sufficient structural support must be determined prior tolocating and mounting the curb and package unit.

• Ductwork must be constructed using industry guidelines.The duct work must be placed into the roof curb beforemounting the package unit. Our full perimeter curbsinclude duct connection frames to be assembled with thecurb. Cantilevered type curbs are not available from thefactory.

• Curb insulation, cant strips, flashing and general roofingmaterial are furnished by the contractor.

The curbs must be supported on parallel sides by roof members.The roof members must not penetrate supply and return ductopening areas as damage to the unit might occur.

NOTE: The unit and curb accessories are designed to allow verticalduct installation before unit placement. Duct installation after unitplacement is not recommended.

ALL CURBS LOOK SIMILAR. TO AVOID INCORRECT CURB POSITIONING, CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS ON CURB ASSEMBLY. INSTRUCTIONS MAY VARY IN CURB STYLES AND SUPERSEDES INFORMATION SHOWN.

CAUTION

See the manual shipped with the roof curb for assembly and in-stallation instructions.

CLEARANCES

36”; minimumroof overhang

48” Min.

65”Min.*

48”Min.

48”Min.*

*In situations that have multiple units, a 48” minimum clearance isrequired between the condenser coils.

UNIT CLEARANCES

Adequate clearance around the unit should be kept for safety, ser-vice, maintenance, and proper unit operation. A total clearanceof 75” around this unit is recommended to facilitate possible blowerassembly, shaft, wheel replacement, coil, heat exchanger, electricheat and gas furnace removal. This unit must not be installed be-neath any obstruction. This unit should be installed remote fromall building exhausts to inhibit ingestion of exhaust air into theunit’s fresh air intake.

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InsulatedPanels

Roof Curb Installation

ROOF CURB POST-INSTALLATION CHECKSAfter installation, check the top of the curb, duct connection frameand duct flanges to make sure gasket has been applied properly.Gasket should be firmly applied to the top of the curb perimeter,duct flanges and any exposed duct connection frame. If gasket isloose, re-apply using strong weather resistant adhesive.

PROTRUSION

Inspect curb to ensure that none of the utility services (electric)routed through the curb protrude above the curb.

IF PROTRUSIONS EXIST, DO NO ATTEMPT TO SET UNIT ON CURB.

CAUTION

ROOF TOP DUCT CONNECTIONSInstall all duct connections on the unit before placing the unit onrooftop.

RIGGING DETAILS

WARNING

TO PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHTPOSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATELIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN ANADEQUATE CABLE SLING.

DO NOT LIFT UNITS TWO AT A TIME. PROVISIONS FOR FORKS HAVE BEEN INCLUDED IN THE UNIT BASE FRAME. MINIMUM FORK LENGTH IS 72” TO PREVENT DAMAGE TO THE UNIT.

CAUTION

Provisions for forks have been included in the unit base frame. Noother fork locations are approved.

WARNING

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONALINJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVEDWHEN INSTALLING THE UNIT.

• Unit must be lifted by the four lifting holes located at thebase frame corners.

• Lifting cables should be attached to the unit with shackles.• The distance between the crane hook and the top of the

unit must not be less than 60”.• Two spreader bars must span over the unit to prevent

damage to the cabinet by the lift cables. Spreader barsmust be of sufficient length so that cables do not come incontact with the unit during transport. Remove woodstruts mounted beneath unit base frame before settingunit on roof curb. These struts are intended to protectunit base frame from fork lift damage. Removal isaccomplished by extracting the sheet metal retainers andpulling the struts through the base of the unit. Refer torigging label on the unit.

Important: If using bottom discharge with roof curb, ductworkshould be attached to the curb prior to installing the unit. Ductworkdimensions are shown in Roof Curb Installation Instructions.

Refer to the Roof Curb Installation Instructions for proper curbinstallation. Curbing must be installed in compliance with the Na-tional Roofing Contractors Association Manual.

Lower unit carefully onto roof mounting curb. While rigging unit,center of gravity will cause condenser end to be lower than supplyair end.

SEE CAUTION BELOW

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WHEN UNIT IS SUSPENDED, BOARDS AND SHIPPING BRACE WILL DROP WHEN SCREWS ARE REMOVED. TO PREVENT PERSONAL INJURY, STAND CLEAR.REMOVE FORK HOLE BRACKETS, BOARDS AND SHIPPING BRACE FROM BOTTOMOF UNIT BEFORE PLACING UNIT ONTO CURB.

CAUTION

To assist in determining rigging requirements, unit weights areshown as follows:

COMPRESSOR 1

COMPRESSOR 2

CGEV

APO

RAT

OR

CO

ILS

A

B

C

X D

Y

CORNER & CENTER OF GRAVITY LOCATIONS

Corner Weight - A 590 644 626

Corner Weight - B 482 525 464

Corner Weight - C 492 504 501

Corner Weight - D 401 412 518

Unit Shipping Weight 2080 2202 2377

Unit Operating Weight 1965 2085 2109

X (Inches) 60" 58" 64.3"

Y (Inches) 40" 40" 41.3"

DATA15 Tons 20 Tons 25 Tons

DCC Weights(lbs)

NOTE: These weights are without accessories installed.

TO PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT, DO NOT FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED.

CAUTION

Bring condenser end of unit into alignment with the curb. Withcondenser end of the unit resting on curb member and using curbas a fulcrum, lower opposite end of the unit until entire unit isseated on the curb. When a rectangular cantilever curb is used,care should be taken to center the unit. Check for proper align-ment and orientation of supply and return openings with duct.

RIGGING REMOVAL

TO PREVENT DAMAGE TO THE UNIT, DO NOT ALLOW CRANE HOOKS AND SPREADER BARS TO REST ON THE ROOF OF THE UNIT.

CAUTION

Remove spreader bars, lifting cables and other rigging equipment.

ELECTRICAL WIRING


WARNING

HIGH VOLTAGE! TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, DO NOT TAMPER WITH FACTORY WIRING. THE INTERNAL POWER AND CONTROL WIRING OF THESE UNITS ARE FACTORY-INSTALLED AND HAVE BEEN THOROUGHLY TESTED PRIOR TO SHIPMENT. CONTACT YOUR LOCAL REPRESENTATIVE IF ASSISTANCE IS REQUIRED.

WARNING

TO PREVENT DAMAGE TO THE WIRING, PROTECT WIRING FROM SHARP EDGES. FOLLOW NATIONAL ELECTRICAL CODE AND ALL LOCAL CODES AND ORDINANCES. DO NOT ROUTE WIRES THROUGH REMOVABLE ACCESS PANELS.

CAUTION

CONDUIT AND FITTINGS MUST BE WEATHER-TIGHT TO PREVENT WATER ENTRY INTO THE BUILDING.

CAUTION

For unit protection, use a fuse or HACR circuit breaker that is inexcess of the circuit ampacity, but less than or equal to the maxi-mum overcurrent protection device. DO NOT EXCEED THE MAXI-MUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.

All line voltage connections must be made through weatherprooffittings. All exterior power supply and ground wiring must be inapproved weatherproof conduit.

The main power supply wiring to the unit and low voltage wiringto accessory controls must be done in accordance with these in-structions, the latest edition of the National Electrical Code (ANSI/NFPA 70), and all local codes and ordinances.

The main power supply shall be three-phase, three wire. The unitis factory wired for the voltage shown on the unit’s data plate.

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NOTE: If supply voltage is 208V, all leads on primary oftransformer(s) must be moved from the 230V to the 208V tap.

Main power wiring should be sized for the minimum circuitampacity shown on the unit’s data plate. Size wires in accordancewith the ampacity tables in Article 310 of the National ElectricalCode. If long wires are required, it may be necessary to increasethe wire size to prevent excessive voltage drop. Wires should besized for a maximum of 3% voltage drop.

CAUTION

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USEONLY COPPER CONDUCTORS.

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.

CAUTION

NOTE: A weather-tight disconnect switch, properly sized for theunit total load, must be field or factory installed. An external fieldsupplied disconnect may be mounted on the exterior panel.

Ensure the data plate is not covered by the field-supplieddisconnect switch.

• Some disconnect switches are not fused. Protect thepower leads at the point of distribution in accordance withthe unit’s data plate.

• The unit must be electrically grounded in accordance withlocal codes or, in the absence of local codes, with the latestedition of the National Electrical Code (ANSI-NFPA 70). Aground lug is provided for this purpose. Size groundingconductor in accordance with Table 250-95 of the NationalElectrical Code. Do not use the ground lug for connectinga neutral conductor.

• Connect power wiring to the electrical middle contactorwithin the main control box of power block, if equipped.

Low VoltageTerminal Strip

Thermostat wiringfor all unitsconnect to lowvoltage strip

GroundLug

Line voltage connectsto power block onCoolers and the 230vGas Packs

Line voltage connectsto middle contactoron 460v and 575vGas Packs(or power blockif equipped)

Power Block(Coolers &230V Gas PacksOnly)

Field wiring entersfrom this direction

POWER AND LOW VOLTAGE BLOCK LOCATIONS

Route fieldcontrol wiringthroughgrommet

Field connectionforcontrol wiringatterminal block

HIGH

Ground Lug

LOWField wiringenters fromthis direction

Fieldconnectionforline voltage

25 TON POWER AND LOW VOLTAGE BLOCK LOCATIONS

NOTE: Depending on the options installed, the location of the com-ponents may vary in some models.

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FAILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT ABUSE AND MAY CAUSE SEVERE DAMAGE TO THE UNIT ELECTRICAL COMPONENTS.

WARNING

Areas Without Convenience Outlet

It is recommended that an independent 115V power source bebrought to the vicinity of the roof top unit for portable lights andtools used by the service mechanic.

NOTE: Refer to local codes for requirements. These outlets canalso be factory installed.

UNITS INSTALLED ON ROOF TOPS

Main power and low voltage wiring may enter the unit throughthe side or through the roof curb. Install conduit connectors at thedesired entrance locations. External connectors must be weath-erproof. All holes in the unit base must be sealed (including thosearound conduit nuts) to prevent water leakage into building. Allrequired conduit and fittings are to be field supplied.

Supply voltage to roof top unit must not vary by more than 10% ofthe value indicated on the unit’s data plate. Phase voltage unbal-ance must not exceed 2%. Contact your local power company forcorrection of improper voltage or phase unbalance.

ELECTRICAL ENTRANCE LOCATIONS

Unit is equipped with Single Point Power Block and Low VoltageBlock.

LOW VOLTAGE CONTROL WIRING

1. A 24V thermostat must be installed for unit operation. Itmay be purchased with the unit or field -supplied.Thermostats may be programmable or electromechanicalas required.

2. Locate thermostat or remote sensor in the conditionedspace where it will sense average temperature. Do notlocate the device where it may be directly exposed tosupply air, sunlight or other sources of heat. Followinstallation instructions packaged with the thermostat.

3. Use #18 AWG wire for 24V control wiring runs notexceeding 75 feet. Use #16 AWG wire for 24V control wiringruns not exceeding 125 feet. Use #14 AWG wire for 24Vcontrol wiring runs not exceeding 200 feet. Low voltagewiring may be National Electrical Code (NEC) Class 2 wherepermitted by local codes.

4. Route thermostat wires from sub-base terminals to theunit. Control wiring should enter through the duct panel(dimple marks entrance location). Connect thermostat andany accessory wiring to low voltage terminal block TB1 inthe main control box.

NOTE: Field-supplied conduit may need to be installed dependingon unit/curb configuration. Use #18 AWG solid conductor wirewhenever connecting thermostat wires to terminals on sub-base.DO NOT use larger than #18 AWG wire. A transition to #18 AWGwire may be required before entering thermostat sub-base.

NOTE: Refer to unit wiring diagrams for thermostat hookups.

CIRCULATING AIR AND FILTERS

DUCTWORK

The supply duct from the unit through a wall may be installed with-out clearance. However, minimum unit clearances must be main-tained (see “Clearances” section). The supply duct should be pro-vided with an access panel large enough to inspect the air cham-ber downstream of the heat exchanger. A cover should be tightlyattached to prevent air leaks.

Ductwork dimensions are shown in the roof curb installationmanual.

If desired, supply and return duct connections to the unit may bemade with flexible connections to reduce possible unit operatingsound transmission.

CONDENSATE DRAIN CONNECTION

CONDENSATE DRAIN CONNECTION

A 1” female NPT drain connection is supplied on the end of thecondensate pan, with an alternative connection on the bottom ofthe pan. An external trap must be installed for proper condensatedrainage

STANDARDSIDE DRAIN

DRAIN PLUG(FACTORY-INSTALLED)

Drain Pan (Side View)

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NOTE: Trap should be deep enough to offset maximumunit static difference. A minimum 4” trap is recommended.

Drain Plug Roof Curb

See NOTE

Base Rail

Open Vent 2” Min

DRAIN CONNECTION

Install condensate drain trap as shown. Use 1” drain line and fit-tings or larger. Do not operate without trap.

HORIZONTAL DRAIN

Drainage of condensate directly onto the roof may be acceptable;refer to local code. It is recommended that a small drip pad ofeither stone, mortar, wood or metal be provided to prevent anypossible damage to the roof.

CLEANING

Due to the fact that drain pans in any air conditioning unitwill have some moisture in them, algae and fungus will growdue to airborne bacteria and spores. Periodic cleaning isnecessary to prevent this build-up from plugging the drain.

STARTUP, ADJUSTMENTS, AND CHECKS

HIGH VOLTAGE!

OND THE FRAME OF THIS UNIT TO THE BUILDING ELECTRICAL GROUND BY USE OF THE GROUNDING TERMINAL PROVIDED OR OTHER ACCEPTABLE MEANS. DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT.

TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, B

WARNING

PRE-STARTUP INSTRUCTIONS

TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY, DO NOT START THE UNIT UNTIL ALL NECESSARY PRE-CHECKS AND TESTS HAVE BEEN PERFORMED.

CAUTION

Prior to the beginning of Startup, Adjustments, and Checks proce-dures, the following steps should be completed in the building.

MOVING MACHINERY HAZARD!TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH, DISCONNECT POWER TO THE UNIT AND PADLOCK IN THE “OFF” POSITION BEFORE SERVICNG FANS.

WARNING

HEATING STARTUP

On new installations, or if a major component has been replaced,the operation of the unit must be checked.

Check unit operation as outlined in the following instructions. Ifany sparking, odors, or unusual sounds are encountered, shut offelectrical power and recheck for wiring errors, or obstructions inor near the blower motors. Duct covers must be removed beforeoperating unit.

The Startup, Adjustments, and Checks procedure provides a step-by-step sequence which, if followed, will assure the proper startupof the equipment in the minimum amount of time. Air balancingof duct system is not considered part of this procedure. However,it is an important phase of any air conditioning system startup andshould be performed upon completion of the Startup, Adjustments,and Checks procedure. The Startup, Adjustments, and Checks pro-cedure at outside ambients below 55°F should be limited to a readi-ness check of the refrigeration system with the required final checkand calibration left to be completed when the outside ambientrises above 55°F.

TEMPORARY HEATING OR COOLING

If the unit is to be used for temporary heating or cooling, a “Startup,Adjustments, and Checks” must first be performed in accordancewith this manual. After the machines are used for temporary heat-ing or cooling, inspect the coils, fans, and motors for unaccept-able levels of construction dust and dirt and install new filters.

CONTRACTOR RESPONSIBILITY

The installing contractor must be certain that:

• All supply and return air ductwork is in place, properlysealed and corresponds with installation instructions.

• All thermostats are mounted and wired in accordancewith installation instructions.

• All electric power, all gas, hot water or steam lineconnections, and the condensate drain installation havebeen made to each unit on the job. These main supplylines must be functional and capable of operating all unitssimultaneously.

• All filters are in place.

ROOF CURB INSTALLATION CHECK

Inspect the roof curb for correct installation. The unit and curbassembly should be level. Inspect the flashing of the roof mount-ing curb to the roof, especially at the corners, for good workman-ship. Also check for leaks around gaskets. Note any deficiencies ina separate report and forward to the contractor.

11

OBSTRUCTIONS, FAN CLEARANCE AND WIRING

Remove any extraneous construction and shipping materials thatmay be found during this procedure. Rotate all fans manually tocheck for proper clearances and that they rotate freely. Check forbolts and screws that may have jarred loose during shipment tothe job site. Retighten if necessary. Re-tighten all electrical con-nections.

FIELD DUCT CONNECTIONS

Verify that all duct connections are tight and that there is no airbypass between supply and return.

FILTER SECTION CHECK

Remove filter section access panels and check that filters are prop-erly installed. Note airflow arrows on filter frames.

PRE-STARTUP PRECAUTIONS

It is important to your safety that the unit has been properlygrounded during installation. Check ground lug connection in maincontrol box for tightness prior to closing circuit breaker or discon-nect switch. Verify that supply voltage on line side of disconnectagrees with voltage on unit identification plate and is within theutilization voltage range as indicated in Appendix C Electrical Data.

System Voltage - That nominal voltage value assigned to a circuitor system for the purpose of designating its voltage class.

Nameplate Voltage - That voltage assigned to a piece of equip-ment for the purpose of designating its voltage class and for thepurpose of defining the minimum and maximum voltage at whichthe equipment will operate.

Utilization Voltage - The voltage of the line terminals of the equip-ment at which the equipment must give fully satisfactory perfor-mance. Once it is established that supply voltage will be main-tained within the utilization range under all system conditions,check and calculate if an unbalanced condition exists betweenphases. Calculate percent voltage unbalance as follows:

Three Phase Models Only

3) PERCENT VOLTAGE UNBALANCE

2) MAXIMUM VOLTAGE DEVIATIONSFROM AVERAGE VOLTAGE

1) AVERAGE VOLTAGE

HOW TO USE THE FORMULA:EXAMPLE: With voltage of 220, 216, and 2131) Average Voltage = 220+216+213=649 / 3 = 2162) Maximum Voltage Deviations from Average Voltage = 220 - 216 = 4

3) Percent Voltage Unbalance = 100 x = = 1.8%

Percent voltage unbalance MUST NOT exceed 2%.

4216

400216

= 100 X

AIRFLOW ADJUSTMENTSThe drive on the supply fan is typically set in the middle of theRPM range. The drive motor sheave pitch diameter is field adjust-able for the required airflow. Refer to the following “DriveAdjustments” section.

When the final adjustments are complete, the current draw of themotor should be checked and compared to the full load current

rating of the motor. The amperage must not exceed the servicefactor stamped on the motor nameplate. The total airflow mustnot be less than that required for operation of the electric heatersor the furnace.

If an economizer is installed, check the unit operating balance withthe economizer at full outside air and at minimum outside air. Uponcompletion of the air flow balancing, we recommend replacingthe variable pitched motor sheave with a properly-sized fixedsheave. A matching fixed sheave will provide longer belt and bear-ing life and vibration free operation. Initially, it is best to have avariable pitched motor sheave for the purpose of airflow balanc-ing, but once the balance has been achieved, fixed sheaves main-tain alignment and minimize vibration more effectively.

NOTE: Airflow setting below 300 CFM/ton is not recommended,as evaporator freezing or poor unit performance is possible. For2-speed models, airflow adjustments must be made with theevaporator fan motor operating at high speed (in 2nd stage cool-ing or in heat mode). 2-Speed models have a “V” in 11th digit ofthe model number (e.g. DCC300XXX3V).

SET EVAPORATOR FAN RPMActual RPM’s must be set and verified with a tachometer or strobelight. Refer to Appendices A and B for basic unit fan RPM. Referalso to “Airflow” section of this manual. With disconnect switchopen, disconnect thermostat wires from terminals Y and W. Thiswill prevent heating and mechanical cooling from coming on. Placea jumper wire across terminals R and G at TB1 terminal block. Closedisconnect switch; evaporator fan motor will operate so RPM canbe checked.

EVAPORATOR FAN ROTATION CHECK (THREE PHASE MODELS ONLY)Check that fan rotates clockwise when viewed from the drive sideof unit and in accordance with rotation arrow shown on blowerhousing. If it does not, reverse the two incoming power cables atSingle Point Power Block. In this case, repeat bearing check.

Do not attempt to change load side wiring. Internal wiring assuresall motors and compressors will rotate in correct direction onceevaporator fan motor rotation check has been made.

ELECTRICAL INPUT CHECK

Make preliminary check of evaporator fan ampere draw and verifythat motor nameplate amps are not exceeded. A final check ofamp draw should be made upon completion of air balancing ofthe duct system (see Appendix C).

BELT DRIVE MODELS ONLYBEARING CHECK

Prior to energizing any fans, check and make sure that all setscrewsare tight so that bearings are properly secured to shafts.

TENSION AND ALIGNMENT ADJUSTMENT

Correct belt tension is very important to the life of your belt. Tooloose a belt will shorten its life; too tight, premature motor andbearing failure will occur. Check you belt drive for adequate “run-in” belt tension by measuring the force required to deflect the

12

belt at the midpoint of the span length. Belt tension force can bemeasured using a belt tension gauge, available through most beltdrive manufacturers.

SPAN LENGTH t*DEFLECTION

FORCE

h

C

dH

D

*Apply force to the center of the span.

t = Span length, inchesC = Center distance, inchesD = Larger sheave diameter, inchesd = Smaller sheave diameter, inchesh = Deflection height, inches

BELT DRIVE Used New15 Ton B, BX Standard 4.3 to 5.5 5.5 ± .5 8.2 ± .5 1/4 ± 1/1620 Ton25 Ton

B, BA Standard 4.3 to 5.5 5.5 ± .5 8.2 ± .5 1/4 ± 1/16

MODELTYPE DEFLECTION

FORCE (lbs)SHEAVE

DIAMETER (in)

DEFLECTION (in)

DRIVE BELT TENSION ADJUSTMENT

RECOMMENDED POUNDS OF FORCE PER BELT

New V-belts will drop rapidly during the first few hours of use.Check tension frequently during the first 24 hours of operation.Tension should fall between the minimum and maximum force. Todetermine the deflection distance from a normal position, mea-sure the distance from sheave to sheave using a straightedge or acord. This is your reference line. On multiple belt drives, an adja-cent undeflected belt can be used as a reference.

MOTOR SHEAVE ADJUSTMENTS

VL, VM & 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES

The driving and driven motor sheaves should be in alignment witheach other and the shafts parallel.

VL & VM SHEAVES ADJUSTMENT

1. Loosen set screw “B” using a 5/32" Allen key.2. Making half or full turns from closed position, adjust

sheave pitch diameter for desired speed. DO NOT OPENMORE THAN SIX FULL TURNS.

3. Tighten set screw “B” securely over flat.4. Carefully put on belts and adjust belt tension. DO NOT

FORCE BELTS OVER GROOVES.5. Ensure all keys are in place and the set screws tight before

starting drive. Recheck set screws and belt tension after24 hours service.

NOTE: Future adjustments should be made by loosening the belttension and increasing or decreasing the pitch diameter of thesheave by half or full turns as required. Readjust belt tension beforestarting drive.

C

B

VL & VM

NOTE: Do not operate sheave with flange projecting beyond thehub end.

REFRIGERATION SYSTEM

The unit is equipped with a thermal expansion valve as a metering device.

Ensure the hold-down bolts on the compressor are secure and havenot vibrated loose during shipment. Check that vibration grom-mets have been installed. Visually check all piping for damage andleaks; repair if necessary. The entire system has been factorycharged and tested, making it unnecessary to field charge. Factorycharges are shown on the unit’s namelate. To confirm charge lev-els or, if a leak occurs and charge needs to be added to the system,it is recommended to evacuate the system and recharge refriger-ant to unit nameplate specifications. This unit has been rated inthe cooling mode at the AHRI rated conditions of: Indoor (80°db /67°wb) and outdoor (95°db). While operating at this condition,the subcooling should range from 12° to 15° F for each refrigera-tion circuit, for 15 and 20 ton models. Subcooling for 25 ton mod-els should be from 16° to 19° F for circuit 1, and from 12° to 15° Ffor circuit 2.

START-UP PROCEDURE AND CHECKLIST

Begin with power turned off at all disconnects.

1. Turn thermostat system switch to “Cool,” and fan switchto “Auto” and turn temperature setting as high as it willgo.

2. Inspect all registers and set them to the normal openposition.

3. Turn on the electrical supply at the disconnect.

4. Turn the fan switch to the “ON” position. The blowershould operate after a 7-second delay.

5. Turn the fan switch to “Auto” position. The blower shouldstop after a 65 second delay.

13

6. Slowly lower the cooling temperature until first stage COOL(LOW COOL) starts. The blower, both fans, and first stagecompressor should now be operating. Allow the unit torun 10 minutes, make sure cool air is being supplied bythe unit.

7. Lower the cooling temperature further until second stageCOOL (HIGH COOL) starts. The blower, both fans, and bothcompressors should now be operating. Allow the unit torun 10 minutes, make sure cool air is being supplied bythe unit.

8. Turn the temperature setting to the highest position,stopping the unit. The indoor blower will continue to runfor 65 seconds.

9. Turn the thermostat system switch to “OFF” anddisconnect all power when servicing the unit.

START-UP PROCEDURE AND CHECKLIST FOR 2 SPEED MODELS:

Models with a V in the 11th position of the model number.

For 2 speed models, the indoor blower will operate on low speedwhen in “Fan Only” mode or while in first stage “Cooling” mode.Unit will operate on high speed in “Heating” mode and while insecond stage “Cooling” mode.

The start-up procedure is the same as for “Air Conditioning Start-up Procedure” with the understanding that in Step 6, the indoorblower will run at low speed (~1175 motor rpm) and in Step 7, theindoor blower will operate at high speed (~1775 motor rpm).

LOW AMBIENT COOLING NOTES:

For 15 and 20 ton models: While in the Cooling Mode, to preventfrost from forming on the evaporator while the unit is operating inoutdoor temperatures of 65°F or lower, it is recommended that alow ambient kit (LAKT-03) is used. This is strongly recommendedfor 2 Speed models due to the lower airflow while in the firststage of cooling. To further protect the compressor from damageduring low ambient conditions, a Freezestat Kit (FSK01) can beadded that turns the compressor off when the evaporatortemperature drops too low.

For 25 ton models: The 25 ton units are equipped with a controlthat shuts off one condenser fan when the outdoor temperatureis 44° F or below. This is to assist low ambient cooling down to24°. An optional Low Ambient kit, LAKT05, is required below 24°which will enable reliable cooling to occur to a minimum ambienttemperature of zero °F.

It is recommended that all single speed models be equipped witha Freezestat kit, FSK02A, to provide extra protection for thecompressor from damage that may occur during periods of lowambient operation. For 25 ton 2 Speed Models only, the freezestatcomes as standard equipment.


WARNING

FINAL SYSTEM CHECKS

10. Check to see if all supply and return air grilles are adjustedand the air distribution system is balanced for the bestcompromise between heating and cooling.

11. Check for air leaks in the ductwork. See Sections on AirFlow Adjustments.

12. Make sure the unit is free of “rattles”, and the tubing inthe unit is free from excessive vibration. Also make suretubes or lines are not rubbing against each other or sheetmetal surfaces or edges. If so, correct the trouble.

13. Set the thermostat at the appropriate setting for coolingand heating or automatic change over for normal use.

14. Be sure the Owner is instructed on the unit operation, filter,servicing, correct thermostat operation, etc.

MAINTENANCE


WARNING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

WARNING

14

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

CAUTION

Preventive maintenance is the best way to avoid unnecessary ex-pense and inconvenience. Have this system inspected at regularintervals by qualified service personnel, at least twice a year. Rou-tine maintenance should cover the following items:

1. Tighten all belts, set screws, and wire connections.2. Clean evaporator and condenser coils mechanically or with

cold water, if necessary. Usually any fouling is only mattedon the entering air face of the coil and can be removed bybrushing.

3. Lubricate motor bearings.4. Align or replace belts as needed.5. Replace filters as needed (see below).6. Check for blockage of condensate drain.7. Check power and control voltages.8. Check running amperage.9. Check operating temperatures and pressures.

10. Check and adjust temperature and pressure controls.11. Check and adjust damper linkages.12. Check operation of all safety controls.13. Examine gas furnaces (see below and the User’s

Information Manual).14. Check condenser fans and tighten set screws.

FILTERS

CAUTION

TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OFEQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINTBUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIRFILTER INSTALLED IN THE RETURN AIR SYSTEM.

Every application may require a different frequency of replace-ment of dirty filters. Filters must be replaced at least every three(3) months during operating seasons.

Dirty filters are the most common cause of inadequate heating orcooling performance. Filter inspection should be made at leastevery two months; more often if necessary because of local condi-tions and usage.

Dirty throwaway filters should be discarded and replaced with anew, clean filter.

Disposable return air filters are supplied with this unit. See theunit Specification Sheet or Technical Manual for the correct sizeand part number. To remove the filters, remove the filter accesspanel on return side of the unit.

CABINET FINISH MAINTENANCE

Use a fine grade automotive wax on the cabinet finish to maintainthe finish’s original high luster. This is especially important in in-stallations with extended periods of direct sunlight.

CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)The coil with the outside air flowing over it should be inspectedannually and cleaned as frequently as necessary to keep the finnedareas free of lint, hair and debris.

CONDENSER FANS

Bearings on the condenser fan motors are permanently lubricated.No additional oiling is required.

LUBRICATION

The fan shaft bearings and the supply fan motor have grease fit-tings that should be lubricated during normal maintenance checks.

FUNCTIONAL PARTS

Refer to the unit Parts Catalog for a list of functional parts. Partsare available from your distributor.

15

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - STANDARD

NOTES:

High static airflow requires installation of high static kit.

Unit factory shipped with sheave set at 2.5 turns open.

Air flow table represent dry coil with filters installed; SCFM correction factor for wet coil is 4%.

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP0.2 --- --- --- --- --- --- --- --- --- --- 7203 2.18 6718 1.94

0.4 --- --- --- --- --- --- 7306 2.54 6777 2.14 6257 1.80 5711 1.66

0.6 --- --- 7477 2.97 6899 2.51 6323 2.10 5716 1.72 5103 1.39 ---

0.8 7112 2.96 6467 2.46 5795 2.01 5101 1.61 --- --- --- --- --- ---

1.0 5983 2.38 5190 1.89 --- --- --- --- --- --- --- --- --- ---

1.2 4426 1.71 --- --- --- --- --- --- --- --- --- --- --- ---

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

0.2 --- --- --- --- --- --- --- --- --- --- --- --- 9664 4.05

0.4 --- --- --- --- --- --- --- --- 9570 4.08 9197 3.82 8702 3.51

0.6 --- --- --- --- --- --- 9038 3.82 8460 3.46 7949 3.14 --- ---

0.8 --- --- 8171 2.93 7630 3.70 7068 2.79 --- --- --- --- --- ---

1.0 --- --- 7901 2.85 7203 3.42 --- --- --- --- --- --- --- ---

1.2 7344 4.35 --- --- --- --- --- --- --- --- --- --- --- ---

DCC240 STANDARD BELT DRIVE (includes 2 speed models at high speed)

ESP, In H2OTURNS OPEN

0 1 2 3 4 5 6



0 1 2 3 4 5 6


0.2 --- --- --- --- --- --- 10369 5.07 9748 4.41 9191 3.82 8683 3.28

0.4 --- --- 10802 6.00 10125 5.30 9484 4.62 8905 4.01 8386 3.46 7913 2.95

0.6 10519 6.20 9821 5.47 9193 4.81 8599 4.18 8062 3.61 7582 3.10 7143 2.63

0.8 9482 5.60 8839 4.93 8261 4.32 7714 3.74 7220 3.21 6777 2.74 --- ---

1.0 8446 5.01 7857 4.39 7329 3.83 6829 3.30 --- --- --- --- --- ---

1.2 7409 4.41 6876 3.85 --- --- --- --- --- --- --- --- --- ---


ESP, In H2O

TURNS OPEN

0 1 2 3 4 5 6

16

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - HIGH STATIC

NOTES:

High static airflow requires installation of high static kit.

Unit factory shipped with sheave set at 2.5 turns open.

Air flow table represent dry coil with filters installed; SCFM correction factor for wet coil is 4%.


1.0 --- --- --- --- --- --- --- --- --- --- 7120 3.26 6223 2.55

1.2 --- --- --- --- --- --- --- --- 6927 3.39 5924 2.61 --- ---

1.4 --- --- --- --- --- --- 6739 3.52 5602 2.65 --- --- --- ---

1.6 --- --- --- --- 6587 3.69 5245 2.67 --- --- --- --- --- ---

1.8 --- --- 6419 3.84 4877 2.70 --- --- --- --- --- --- --- ---

2.0 6261 4.01 --- --- --- --- --- --- --- --- --- --- --- ---


1.0 --- --- --- --- --- --- --- --- 9090 5.79 8297 5.06 7479 3.62

1.2 --- --- --- --- --- --- 8774 5.60 7914 4.83 6989 4.07 --- ---

1.4 --- --- --- --- 8471 5.43 7549 4.63 --- --- --- --- --- ---

1.6 --- --- 8209 6.14 7194 4.45 --- --- --- --- --- --- --- ---

1.8 7967 6.02 6883 5.01 --- --- --- --- --- --- --- --- --- ---

2.0 6594 4.87 --- --- --- --- --- --- --- --- --- --- --- ---

DCC240 HIGH STATIC BELT DRIVE

ESP, In H2O

TURNS OPEN

0 1 2 3 4 5 6



0 1 2 3 4 5 6


0.6 --- --- --- --- --- --- --- --- --- --- --- --- 11409 7.12

0.8 --- --- --- --- --- --- --- --- --- --- --- --- 10302 6.46

1.0 --- --- --- --- --- --- --- --- --- --- 10159 6.79 9195 5.79

1.2 --- --- --- --- --- --- --- --- 9990 7.11 8961 6.04 8087 5.13

1.4 --- --- --- --- --- --- 9789 7.39 8686 6.25 7763 5.29 6980 4.46

1.6 --- --- --- --- 9543 7.63 8357 6.40 7382 5.39 6566 4.53 --- ---

1.8 --- --- --- --- 7957 6.48 6925 5.41 6077 4.53 --- --- --- ---2.0 --- --- 7667 6.68 6370 5.34 --- --- --- --- --- --- --- ---2.2 7280 6.78 --- --- --- --- --- --- --- --- --- --- --- ---


ESP, In H2O

TURNS OPEN

0 1 2 3 4 5 6

17

APPENDIX A ECONOMIZER PRESSURE DROP

SCFM 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000

(In WG) 0.15 0.18 0.22 0.27 0.32 0.37 0.42 0.48 0.55 0.61 0.69 0.76

Airflow Pressure Drop of Downflow Economizer for 15 to 25 Ton Rooftop Units (100% Return Air)

18

APPENDIX B ELECTRICAL DATA

* Electric Heater kW rating: Rated at 240v for 208-230v units; 480v for 460v units

RLA LRA RLA LRA QTY HP FLA Type HP FLA Part # FLA FLA MCA MOP

- - - 71.5 / 71.5 90 / 90

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 86.5 / 98.1 90 / 100

EHK3-46 32.4 / 43.2 90.1 / 104 - 124 / 142 125 / 150

EHK3-60 43.3 / 57.6 120 / 139 - 162 / 151 175 / 175

- - 7.2 / 6.5 78.7 / 78.0 100 / 100

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 95.5 / 106 100 / 110

EHK3-46 32.4 / 43.2 90 / 104 7.2 / 6.5 133 / 150 150 / 150

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 171 / 159 175 / 175

- - - 76.1 / 76.1 100 / 100

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 92.3 / 104 100 / 110

EHK3-46 32.4 / 43.2 90.1 / 104 - 130 / 147 150 / 150

EHK3-60 43.3 / 57.6 120 / 139 - 167 / 156 175 / 175

- - 7.2 / 6.5 83.3 / 82.6 100 / 100

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 101 / 112 110 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 139 / 155 150 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 176 / 164 200 / 175

- - - 71.4 / 71.4 90 / 90

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 86.4 / 98.0 90 / 100

EHK3-46 32.4 / 43.2 90.1 / 104 - 124 / 141 125 / 150

EHK3-60 43.3 / 57.6 120 / 139 - 161 / 150 175 / 175

- - - - 7.2 / 6.5 78.6 / 77.9 100 / 100

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 95.4 / 106 100 / 110

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 133 / 150 150 / 150

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 170 / 159 175 / 175

- - - 34.6 45

EHK4-31 34.6 - 49.0 50

EHK4-46 52.0 - 70.8 80

EHK4-60 69.3 - 75.1 80

- - 3.3 37.9 50

EHK4-31 34.6 3.3 53.1 60

EHK4-46 52.0 3.3 74.9 80

EHK4-60 69.3 3.3 79.2 90

- - - 36.3 45

EHK4-31 34.6 - 51.1 60

EHK4-46 52.0 - 72.9 80

EHK4-60 69.3 - 77.2 90

- - 3.3 39.6 50

EHK4-31 34.6 3.3 55.3 60

EHK4-46 52.0 3.3 77.0 80

EHK4-60 69.3 3.3 81.3 90

- - - 34.3 45

EHK4-31 34.6 - 48.6 50

EHK4-46 52.0 - 70.4 80

EHK4-60 69.3 - 74.7 80

- - 3.3 37.6 45

EHK4-31 34.6 3.3 52.8 60

EHK4-46 52.0 3.3 74.5 80

EHK4-60 69.3 3.3 78.8 90

- - - 26.4 35

EHK7-31 28.9 - 41.4 45

EHK7-46 43.4 - 59.5 60

EHK7-60 57.8 - 63.1 70

- - 2.6 29.0 35

EHK7-31 28.9 2.6 44.6 45

EHK7-46 43.4 2.6 62.8 70

EHK7-60 57.8 2.6 66.3 7057.6

Standard -Belt Drive

3.00 4.20

-

28.8

43.2

57.6

-

28.8

43.2

57.6

DCC180XXX7B 575-3-60 9.0 78.0 9.0 78.0 3 0.33 0.67


(High Speed)3.00 4.30

-

28.8

43.2

57.6

-

28.8

43.2

57.6

DCC180XXX4V 460-3-60 12.2 100.0 12.2 100.0 3 0.33 0.85

High Static -Belt Drive

5.00 6.30

-

28.8

43.2

57.6

-

28.8

43.2

57.6

DCC180XXX4H 460-3-60 12.2 100.0 12.2 100.0 3 0.33 0.85


3.00 4.60

-

28.8

43.2

57.6

-

28.8

43.2

-

DCC180XXX4B 460-3-60 12.2 100.0 12.2 100.0 3 0.33 0.85

3 0.33 2.00Standard -Belt Drive

(High Speed)5.00 9.10DCC180XXX3V 208/230-3-60 25.0 164.0 25.0 164.0

2.00High Static -Belt Drive

5.00 13.80

-

-

-

-

DCC180XXX3H 208/230-3-60 25.0 164.0 25.0 164.0 3 0.33

3 0.33 2.00Standard -Belt Drive

3.00 9.20

Optional Electric HeatOptional Powered

Convienience OutletPower Supply

KW*

DCC180XXX3B 208/230-3-60 25.0 164.0 25.0 164.0

ModelNumber

ElectricalRating

CompressorCircuit 1

CompressorCircuit 2

Outdoor Fan Motor Indoor Fan Motor

- - - 27.3 35

EHK7-31 28.9 - 42.5 45

EHK7-46 43.4 - 60.6 70

EHK7-60 57.8 - 64.2 70

- - 2.6 29.9 35

EHK7-31 28.9 2.6 45.8 50

EHK7-46 43.4 2.6 63.9 70

EHK7-60 57.8 2.6 67.4 80

- - - 25.7 30

EHK7-31 28.9 - 40.5 45

EHK7-46 43.4 - 58.6 60

EHK7-60 57.8 - 62.2 70

- - 2.6 28.3 35

EHK7-31 28.9 2.6 43.8 45

EHK7-46 43.4 2.6 61.9 70

EHK7-60 57.8 2.6 65.4 7057.6


(High Speed)3.00 3.50

-

28.8

43.257.6

-

28.8

43.2

57.6

DCC180XXX7V 575-3-60 9.0 78.0 9.0 78.0 3 0.33 0.67


5.00 5.10

-

28.843.2

57.6

-

28.8

43.2

DCC180XXX7H 575-3-60 9.0 78.0 9.0 78.0 3 0.33 0.67

19



RLA LRA RLA LRA QTY HP FLA Type HP FLA Part # FLA FLA M CA MOP

- - - 96.2 / 96.2 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 96.2 / 104 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 - 130 / 147 150 / 150

EHK3-60 43.3 / 57.6 120 / 139 - 167 / 156 175 / 175

EHK3-75 54.1 / 72.0 150 / 173 - 167 / 190 200 / 225

- - 7.2 / 6.5 103 / 103 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 103 / 112 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 139 / 155 150 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 176 / 164 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 7.2 / 6.5 176 / 198 200 / 225

- - - 103 / 103 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 103 / 112 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 - 138 / 156 150 / 175

EHK3-60 43.3 / 57.6 120 / 139 - 176 / 165 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 - 176 / 199 200 / 225

- - 7.2 / 6.5 110 / 109 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 110 / 120 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 147 / 164 150 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 185 / 173 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 7.2 / 6.5 185 / 207 200 / 225

- - - 96.4 / 96.4 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 96.4 / 104 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 - 130 / 148 150 / 150

EHK3-60 43.3 / 57.6 120 / 139 - 168 / 157 175 / 175

EHK3-75 54.1 / 72.0 150 / 173 - 168 / 191 200 / 225

- - 7.2 / 6.5 104 / 103 125 / 125

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 104 / 112 125 / 125

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 139 / 156 150 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 177 / 165 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 7.2 / 6.5 177 / 199 200 / 225

- - - 43.2 50

EHK4-31 34.6 - 51.1 60

EHK4-46 52.0 - 72.9 80

EHK4-60 69.3 - 77.2 90

EHK4-75 86.6 - 94.5 110

- - 3.3 46.5 60

EHK4-31 34.6 3.3 55.3 60

EHK4-46 52.0 3.3 77.0 80

EHK4-60 69.3 3.3 81.3 90

EHK4-75 86.6 3.3 98.6 110

- - - 46.3 60

EHK4-31 34.6 - 55.0 60

EHK4-46 52.0 - 76.8 80

EHK4-60 69.3 - 81.1 90

EHK4-75 86.6 - 98.4 110

- - 3.3 49.6 60

EHK4-31 34.6 3.3 59.1 60

EHK4-46 52.0 3.3 80.9 90

EHK4-60 69.3 3.3 85.2 90

EHK4-75 86.6 3.3 103 110

- - - 43.5 50

EHK4-31 34.6 - 51.5 60

EHK4-46 52.0 - 73.3 80

EHK4-60 69.3 - 77.6 90

EHK4-75 86.6 - 94.9 110

- - 3.3 46.8 60

EHK4-31 34.6 3.3 55.6 60

EHK4-46 52.0 3.3 77.4 80

EHK4-60 69.3 3.3 81.7 90

EHK4-75 86.6 3.3 99.0 110

28.8

43.2

57.6

72.0

-

28.8

43.2

57.6

72.0

-1 0.33 0.85


5.00 6.60

28.8

43.2

57.6

72.0

DCC240XXX4V 460-3-60 16.0 140.0 16.0 140.0

-

28.8

43.2

57.6

72.0

-1 0.33 0.85


7.50 9.40

28.8

43.2

57.6

72.0

DCC240XXX4H 460-3-60 16.0 140.0 16.0 140.0

-

28.8

43.2

57.6

72.0

-1 0.33 0.85


5.00 6.30DCC240XXX4B 460-3-60 16.0 140.0 16.0 140.0

2.00Standard -Belt Drive

5.00 14.00

-

-

-

-

DCC240XXX3V 208/230-3-60 34.0 240.0 34.0 240.0 3 0.33

3 0.33 2.00High Static -Belt Drive

7.50 20.40DCC240XXX3H 208/230-3-60 34.0 240.0 34.0 240.0

0.33 2.00Standard -Belt Drive

5.00 13.80

-

-

Optional PoweredConvienience Outlet

Power Supply

KW *

DCC240XXX3B 208/230-3-60 34.0 240.0 34.0 240.0 3

ModelNumber

ElectricalRating

CompressorCircuit 1

CompressorCircuit 2

Outdoor Fan Motor Indoor Fan M otor Optional Electric Heat

- - - 34.9 45

EHK7-31 28.9 - 42.5 45

EHK7-46 43.4 - 60.6 70

EHK7-60 57.8 - 64.2 70

EHK7-75 72.3 - 78.7 90

- - 2.6 37.5 50

EHK7-31 28.9 2.6 45.8 50

EHK7-46 43.4 2.6 63.9 70

EHK7-60 57.8 2.6 67.4 80

EHK7-75 72.3 2.6 81.9 90

- - - 37.3 50

EHK7-31 28.9 - 45.5 50

EHK7-46 43.4 - 63.6 70

EHK7-60 57.8 - 67.2 80

EHK7-75 72.3 - 81.7 90

- - 2.6 39.9 50

EHK7-31 28.9 2.6 48.8 50

EHK7-46 43.4 2.6 66.9 70

EHK7-60 57.8 2.6 70.4 80

EHK7-75 72.3 2.6 84.9 100

- - - 35.0 45

EHK7-31 28.9 - 42.6 45

EHK7-46 43.4 - 60.8 70

EHK7-60 57.8 - 64.3 70

EHK7-75 72.3 - 78.8 90

- - 2.6 37.6 50

EHK7-31 28.9 2.6 45.9 50

EHK7-46 43.4 2.6 64.0 70

EHK7-60 57.8 2.6 67.6 80

EHK7-75 72.3 2.6 82.1 90

28.8

43.2

57.6

72.0

-

28.8

43.2

57.6

72.0

-1 0.33 0.67


5.00 5.20

28.8

43.2

57.6

72.0

DCC240XXX7V 575-3-60 12.9 107.6 12.9 107.6

-

28.8

43.2

57.6

72.0

-1 0.33 0.67


7.50 7.50

28.8

43.2

57.6

72.0

DCC240XXX7H 575-3-60 12.9 107.6 12.9 107.6

-

28.8

43.2

57.6

72.0

-1 0.33 0.67


5.00 5.10DCC240XXX7B 575-3-60 12.9 107.6 12.9 107.6

20



When using electric heat kit, use of the single point kit installed in the unit is required to meet UL requirements

UNITHEATER KIT

MODEL NUMBERMINIMUM CFM

DownshotHEATER KIT


DownshotHEATER KIT


Downshot

EHK3-31 5250 EHK4-31 5250 EHK7-31 5250

15 TON EHK3-46 5250 EHK4-46 5250 EHK7-46 5250

EHK3-60 5250 EHK4-60 5250 EHK7-60 5250

EHK3-31 7000 EHK4-31 7000 EHK7-31 7000

20 TON EHK3-46 7000 EHK4-46 7000 EHK7-46 7000

25 TON EHK3-60 7000 EHK4-60 7000 EHK7-60 7000

EHK3-75 7000 EHK4-75 7000 EHK7-75 7000

ATTENTION INSTALLING PERSONNEL Use only the heater kit specified for each model as dictated by the table above.

RLA LRA RLA LRA QTY HP FLA Type HP FLA Part # FLA FLA MCA MOP

- - - 132 / 132 175 / 175

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 132 / 132 175 / 175

EHK3-46 32.4 / 43.2 90.1 / 104 - 138 / 156 175 / 175

EHK3-60 43.3 / 57.6 120 / 139 - 176 / 165 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 - 176 / 199 200 / 225

- - 7.2 / 6.5 140 / 139 175 / 175

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 140 / 139 175 / 175

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 147 / 164 175 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 185 / 173 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 7.2 / 6.5 185 / 207 200 / 225

- - - 133 / 133 175 / 175

EHK3-31 21.6 / 28.8 60.0 / 69.3 - 133 / 133 175 / 175

EHK3-46 32.4 / 43.2 90.1 / 104 - 139 / 156 175 / 175

EHK3-60 43.3 / 57.6 120 / 139 - 176 / 165 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 - 176 / 199 200 / 225

- - 7.2 / 6.5 140 / 139 175 / 175

EHK3-31 21.6 / 28.8 60.0 / 69.3 7.2 / 6.5 140 / 139 175 / 175

EHK3-46 32.4 / 43.2 90.1 / 104 7.2 / 6.5 148 / 164 175 / 175

EHK3-60 43.3 / 57.6 120 / 139 7.2 / 6.5 185 / 173 200 / 175

EHK3-75 54.1 / 72.0 150 / 173 7.2 / 6.5 185 / 207 200 / 225

- - - 53.1 70

EHK4-31 34.6 - 55.0 70

EHK4-46 52.0 - 76.8 80

EHK4-60 69.3 - 81.1 90

EHK4-75 86.6 - 98.4 110

- - 3.3 56.4 70

EHK4-31 34.6 3.3 59.1 70

EHK4-46 52.0 3.3 80.9 90

EHK4-60 69.3 3.3 85.2 90

EHK4-75 86.6 3.3 103 110

- - - 53.8 70

EHK4-31 34.6 - 55.9 70

EHK4-46 52.0 - 77.6 80

EHK4-60 69.3 - 81.9 90

EHK4-75 86.6 - 99.2 110

- - 3.3 57.1 70

EHK4-31 34.6 3.3 60.0 70

EHK4-46 52.0 3.3 81.8 90

EHK4-60 69.3 3.3 86.1 90

EHK4-75 86.6 3.3 103 110

- - - 42.2 50

EHK7-31 28.9 - 45.5 50

EHK7-46 43.4 - 63.6 70

EHK7-60 57.8 - 67.2 80

EHK7-75 72.3 - 81.7 90

- - 2.6 44.8 50

EHK7-31 28.9 2.6 48.8 50

EHK7-46 43.4 2.6 66.9 70

EHK7-60 57.8 2.6 70.4 80

EHK7-75 72.3 2.6 84.9 100

- - - 42.9 50

EHK7-31 28.9 - 46.4 50

EHK7-46 43.4 - 64.5 70

EHK7-60 57.8 - 68.1 80

EHK7-75 72.3 - 82.6 100

- - 2.6 45.5 60

EHK7-31 28.9 2.6 49.6 60

EHK7-46 43.4 2.6 67.8 70

EHK7-60 57.8 2.6 71.3 80

EHK7-75 72.3 2.6 85.8 100

28.8

43.2

57.6

72.0

-

28.8

43.2

57.6

72.0

-1 1.00 1.50

Std & HighStatic -

Belt Drive7.50 8.20

28.8

43.2

57.6

72.0

DCC300XXX7V 575-3-60 14.7 100.0 14.7 100.0

-

28.8

43.2

57.6

72.0

-1 1.00 1.50

Std & HighStatic -

Belt Drive7.50 7.50

28.8

43.2

57.6

72.0

DCC300XXX7B 575-3-60 14.7 100.0 14.7 100.0

-

28.8

43.2

57.6

72.0

-1 1.00 1.85


7.50 10.10

28.8

43.2

57.6

72.0

DCC300XXX4V 460-3-60 18.6 125.0 18.6 125.0

-

28.8

43.2

57.6

72.0

-1 1.00 1.85

Std & HighStatic -

Belt Drive7.50 9.40DCC300XXX4B 460-3-60 18.6 125.0 18.6 125.0

3.70Std & High

Static -Belt Drive

7.50 21.00

-

-

-

-

DCC300XXX3V 208/230-3-60 48.1 245.0 48.1 245.0 1 1.00

1 1.00 3.70Std & High

Static -Belt Drive

7.50 20.40

Optional Electric HeatOptional Powered

Convienience OutletPower Supply

KW*

DCC300XXX3B 208/230-3-60 48.1 245.0 48.1 245.0

ModelNumber

ElectricalRating

CompressorCircuit 1

CompressorCircuit 2

Outdoor Fan Motor Indoor Fan Motor

21

APPENDIX C UNIT DIMENSIONS

B

C

D

AB

C

D

A

VERTICAL DISCHARGE (TOP VIEW)

21” 60”

7”

48”

22”

NOTE: 15 & 20 ton models have 3 fans.25 ton models have 2 fans.

Model A B C D

15 Ton20 Ton

133-1/2" 88-7/32" 50-9/32" 5-5/32"

25 Ton 133-1/2" 88-7/32" 53-9/32" 5-5/32"

22

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCC180*/DCC240* 208-230, 460, 575 / 3 / 60 1 SPEEDAPPENDIX D WIRING DIAGRAMS

23

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.


DCC180*/DCC240* 208-230, 460, 575 / 3 / 60 1 SPEEDWIRING DIAGRAMS

24


HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.

WIRING DIAGRAMS DCC180*/DCC240* 208-230, 460, 575 / 3 / 60 2 SPEED

25

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.


WIRING DIAGRAMS DCC180*/DCC240* 208-230, 460, 575 / 3 / 60 2 SPEED

26


HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.

WIRING DIAGRAMS DCC300* 208-230, 460, 575 / 3 / 60 1 SPEED

0140L04899 -A

RD

NOTES:

1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (USE COPPER CONDUCTORS ONLY).2. THE CONTROL TRANSFORMER HAS MULTIPLE HIGH VOLTAGE TAPS.

ENSURE WIRE CONNECTIONS ARE CORRECT FOR UNIT SUPPLY VOLTAGE RATING

L1

L2

L3

T1

T2

T3

F1

F2

F3

L1

L2

L3

T1

T2

T3

COMP 1

COMP 2

L1

L2

L3

T1

T2

T3

L1

L2

L3

T1

T2

T3

RD

GY

BK

BK

BR

PU

BR

PU

BK

PU

BK

BR

YL

BK

BK

BK

BR

RD

PU

PU

BK

RD

RD

YL

PU

RD

PU

BR

RD

YL

PU

BR

PU

BK

BK

BK

BK

BK

BK

BKBK

BK

BK

3. 208/230V SUPPLY POWER UNITS ARE FACTORY CONNECTED TO THE CONTROL TRANSFORMER 240V TAP.MOVE WIRE CONNECTION FROM 240V TAP TO 208V TAP WHEN 208V POWER SUPPLY IS USED.

BR

PU

BK

LINEVOLTAGE

24V CNTLVOLTAGE

TR1

CCAS1

CMC 1

CCAS2

CMC 2

FB 1

CC2

CC1

PB

CCH1

CCH2

GY

BK

BK

BR

L1 L2 L3

GR

GR

4. SEE CONTROL DIAGRAM FOR CONTROL TRANSFORMER LOW VOLTAGE CONNECTIONS5. OPTIONAL; CB1,CB2,BC2 AND ASSOCIATED WIRING IS PRESENT ONLY WITH 2-SPEED EVAPORATOR MOTOR.

4

2,3

CM1

CM2

YL

BK

BR

PU

BK

BR

GR

GR1

2

3

1

2

3

1

2

3

1

2

3 PU

BK

BR

PU

BK

BRL1

L2

L3

L1

L2

L3

6. USE COPPER CONDUCTORS ONLY. UNIT TERMINALS ARE NOT DESIGNED FOR OTHER CONDUCTORS.THE USE OF OTHER TYPE CONDUCTORS MAY CAUSE DAMAGE TO THE UNIT.

GND

RD

BK

BLOWER CONTACTOR

ELECTRONICBLOWER TIME DELAYRELAY

BC

EBTDR

PLM

OPTIONALHIGH VOLTAGE

BLOWER RELAY

COMPRESSORCONTACTOR RELAYCCR

COMPRESSORCONTACTOR

CONDENSERMOTORCOMPRESSOR

ECONOMIZEREVAPORATOR MOTOR

HIGHPRESSURE SWITCH

LOW PRESSURESWITCHPOWER DISTRIBUTION BLOCKFEMALEPLUG/ CONNECTOR

LOW VOLTAGE TERMINALBLOCK1

CONTROL TRANSFORMER(LINEVOLTAGE/24VAC)

CC

CMCOMP

ECONEM

HPS

LPSPBPLF

TB1

TR1

COMPONENT LEGEND

LOW VOLTAGE

LINE VOLTAGE

FIELD WIRING

LOW VOLTAGE

FACTORY WIRING

HIGH VOLTAGE

GR GREEN

WIRE CODE

BL BLUE

PU PURPLEPK PINK

WH WHITE

BK BLACK

RD RED

BR BROWN

OR ORANGE

YL YELLOW

GY GRAY

CIRCUIT BREAKER

CRANKCASEHEATER

BRCB

CCH

MALE PLUG/ CONNECTOR

LOW VOLTAGE TERMINALBLOCK 3TB3

CONDENSERMOTOR CONTACTORCMC

CC AUX SWITCHCCAS

CM/CCH/TR1FUSEBLOCKFB1EM FUSEBLOCKFB2

CM/CCH/TR1FUSESF1, F2, F3EM FUSESF4, F5, F6

L2

L3

L1

L2

L3

L1

L1 L2 L3

LINE VOLTAGE

YLRDBKPUOR

7

7. SEE ACCESSORY KIT LITERATURE FOR OPTIONAL ELEC HEAT AND CONVENIENCE OUTLET WIRING DIAGRAMS.

POWER DIAGRAMDCC300 ***(3,4,7)

PLMPLF

PLMPLF

PU

YL

L1

L2

L3

T1

T2

T3

LAC MC

8

YL

BK

BR

BK

BR

YL

T3 T2 T1

L1

L2

L3

T1

T2

T3

EM

GY

BL

YL

RD

BL

BK

OR

RD

YL

BK

OR

GY

F4

F5

F6

RD

BK

OR

RD

BK

OR

BC1

BC 2

FB 2YL (11)

BK (1)

BK (2)

BK (3)

YL (13)

YL (12)

GR

5

L1

L2

L3

T1

T2

T3

L1

L2

L3

T1

T2

T3

L1

L2

L3

T1

T2

T3

RD

BK

OR

RD

BK

OR

CONDENSERMOTOR RELAYCMR

FM EVAPORATOR FREEZESTATMODULE

LACMC LOW AMBIENT CONDENSERMOTORCONTACTOR

LAM LOW AMBIENTMODULELAR LOW AMBIENT RELAY

LOW AMBIENT TIMERLAT

8. IF LOW AMBIENT KIT INSTALLED, DISCONNECT CONDENSER MOTOR WIRES (BK,BR,YL) FROM CMC1 (T1,T2,T3)AND CONNECT TO CORRESPONDING BK,BR,YL WIRES ON LOW AMBIENT HARNESS (INSULATED MALE QUICK CONNECT).ALSO CONNECT LOW AMBIENT HARNESS WIRES (BK,BR,YL) (INSULATED FEMALE QUICK CONNECT) TO T1,T2,T3 ON CMC1.

BK

GY

BK

BK

BK

BR

RD

RDPU PU

CB1HIGH

SPEED

CB2LOW

SPEED

BR

27

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.



28


HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.


0140L04764-A

3A

1 3

4 2CC1

CMC1

CC2

CMC2

1234

12

1234

12

AUX2-IOCCE-GND

EXH1AUX1-O

Y2-IY2-OY1-I

CR

Y1-O

12

MATMAT

12

OATOAT

12

S-BUSS-BUS

123

1234

IAQ 2-10IAQ COMIAQ 24V

ACT COMACT 24V

GRDLUG

MAS

OD ENTH

ECONACT

ECON PLMECON MODULE

ECONPLF

ECON SHRTPLM

PLM 3

PLF 3

CCR1

TB3

PU

BL

BL

PU

YL

GR

BL

TB3

BL

SUPPLY (LINE)VOLTAGE

24 VAC

TR1

2 2

CONTROLS DIAGRAMDCC300***(3,4,7) V

2SPD EM

3

3GR

EBTDR

(NO)

(NC)COM

G

R

XFMR-R XFMR-C

C

SPEEDUP

M1

M2

7

6

BL

HPS1 LPS1

HPS2 LPS2

PU

YL

PU

YL

PU

YL

PU

5 6

1 3

4 2

CCR2

5 6

1

2

3

FM1

1

2

1

2

1

2

3

FM2

1

2

1

2

-t°

-t°

1

2

3

1

2

1

2-t°

1 3

4 2

LAR

5 6

LAM2

T1

T2

LATT6

LA CMC

1

2

3

1

2

1

2

-t°

LAM1

1 3

4 2

CMR

5 6 BK

BK

BK

BKBL

BL

OR

BK

YL

BK

RD BL

BLWH WH

WH

BL

GY

WH

WH

OR

OR

WH

WHBL

BR

OR

OR

WH

WH

RD

RD

RD

RDBL

BK

BL

BR

12 3

123

R CS1S2YIY2GW1 W2

TB1

FIELDCONTROL

WIRINGCLASS 2

4

1 2 3 4 5 6 7 8 9

HEAT PLF

BRWH

BL

GR RD PU

PU

YL

YL

BK

5

BLRD

RD

BL

YL

BL

RD

YL

BL

BL

YL

YL

PU

PU

BLOR

PU

BL

GR

GR

RD

RD

RD

RD

GY

YL

YL

PU

YL

PU

PU

GR

PU

PU

1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OFINSULATION AS ORIGINAL (USE COPPER CONDUCTORS ONLY).

2. IF OPTIONAL ECONOMIZER IS INSTALLED, REMOVE ECON SHRTPLM AND CONNECT ECON PLM TO ECON PLF.

3. TB3 LOW VOLTAGE TERMINAL BLOCK.4 TERMINALS FOR 24VACPWR (RD,BK,BR WIRE) AND 6 TERMINALS FOR 24VAC COM (BL WIRE).

4. CONNECTIONS SHOWN ARE FOR 1-STAGE HEAT OPERATION.WHEN 2-STAGE OPERATION IS REQUIRED REMOVE WH JUMPER WIRE

CONNECTING W2 TO W1 ON TB1.

5. IF OPTIONAL SMOKE DETECTOR IS INSTALLED, REMOVE RD JUMPERWIRE CONNECTING S1 TO S2 ON TB1 AND MAKE THE FOLLOWING WIRE

CONNECTIONS: RD WIRE TO S1,BR WIRE TO TB3 (24V/PWR),BL WIRETO TB3 (24V/COM).

NOTES:

BL

BL

BL BR WH PU RD

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

9

YL

WH RD

1

2

3

4

5

6

7

8

9

RD

BL

RD

GY

BL

YLPU RD

BRWH GR RD RD

6. EBTDR RELAY ENERGIZES 7 SEC AFTER 24VAC IS APPLIED TO "G". THE RELAY DE-ENERGIZES65 SEC AFTER 24VAC IS REMOVED FROM "G".

7. EBDTR RELAY DELAYS WILL DECREASE TO APPROX 3-5 SECWHEN "SPEEDUP" IS SHORTED TO "C".

8. IF LOW AMBIENT KIT IS INSTALLED, CONNECT GY WIRE FROM LAM2-3TO CMR-4. ALSO CONNECT BL COM WIRES FROM LAT-T6 AND LAM2 -2TO TB3 (24V COM).

RD

OR8BL

GY

RD

BL

BL

8

BL

ECON OPTION

LOW AMBOPTION

BL

PU

PU

BK

RD RD

RD

GY

GYYL

RD

RD

BL

GR

GR GR

PU

ORBKYLRD

BL

BR GR RD RD PU YL

YLPUBRWH GR RD RD RD

BC2LOW SPEED

BC1HIGH SPEED

BL

BL

BR2

BL

YLPU

WH

YL

GR

PU

BL

BL

1 3

4 2

5 6

BR1

1 3

4 2

5 6

BK

BK

GR

BL

BR

BR

BL BL

YL

BR BR

BKGR

GR

BL

YLYL

YL

BL

GY

BL

OR

WH

WHWH YL

YL

BL

YLOR

BK

PU

BL

BL

BL

YL

BK

BL

BL

BL

BL

BL

BL

WH

WH

WH

BL

WH

WHWH

WH

WH

BL

BK

THERMOSTAT WIRING

Y1

TB1

W

G

W

PK

RD

Y1

R

OR

BL

GR

C

2 STAGE COOLING

WH

OO

Y2

C

G

R

YL

PK

RD

OR

BR

STAT

Y2SEN2

SEN1

7

18

8

17

6

16 B

R

Y

Y

AUX B

AUX A

10

9

B

R

Y

Y

SENSOR 1

SENSOR 2

B

R

Y

Y

B

R

Y

Y

SMOKE DETECTOR

SMK DETOPTION

24VA

C/D

C

PK

BL 5

PLF PLM

PLF PLM

PLF PLM

PLF PLM

9. LAT ON/OFF TIME SETTINGS :ON -TIME (LEFT COLUMN) : 2,8 = ON

OFF -TIME (RIGHT COLUMN) : 8 = ONALL OTHER DIP SWITCHES = OFF

9

29

WIRING DIAGRAMS FOR MODELS WITH DDC CONTROLSFor complete information and installation instructions for models with DDC controls,

see manual DK-DDC-TGD-XXX

30


HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.

WIRING DIAGRAMS

BKBK

RD

RD

OR

T1

0140L05763-A

POWER WIRING DIAGRAMDCC(180-240)

DDC

LOW VOLTAGE

HIGH VOLTAGE

FIELD WIRING

LOW VOLTAGE

FACTORY WIRING

HIGH VOLTAGE

GR GREEN

WIRE CODE

BL BLUE

PU PURPLEPK PINK

WH WHITE

BK BLACK

RD RED

BR BROWN

OR ORANGE

YL YELLOW

GY GRAY

YL/PK YELLOW WITHPINK STRIPE

BL/PK BLUE WITHPINK STRIPE

OPTIONAL LOW VOLTAGE

OPTIONAL ACCESSORIES OR FIELD SUPPLIED

BLOWER CONTACTORBC

COMPRESSORCONTACTOR

COMPRESSOR

ECONOMIZER

HIGHPRESSURE SWITCH

POWER DISTRIBUTION BLOCKFEMALEPLUG/CONNECTOR

TERMINALBLOCK(24V SIGNAL)

CC

COMP

ECON

HPS

PBPLF

TB

COMPONENT LEGEND

CIRCUIT BREAKERCB

TR

GND

BCS BLOWER CURRENT SWITCHBM BLOWERMOTOR

CFS CLOGGED FILTERSWITCHCF CONDENSERFAN

DAT DISCHARGEAIRTEMPERATURESENSORDDC DIRECT DIGITAL CONTROL

CO2 CARBONDIOXIDESENSOR

FC FAN CAPACITOR

EQUIPMENTGROUNDGV GAS VALVE

EXF EXHAUSTFAN

IAH INDOORAIRHUMIDITYSENSOR

LOW PRESSURESWITCHLPS

RSS REMOTE START/STOP

OAT OUTDOOR AIRTEMPERATURESENSOROAH OUTDOOR AIRHUMIDITYSENSOR

LDS LOADSHEDDING

SPCTEMP SPACE TEMPERATURESENSOR

TRANSFORMER

ALRM ALARM

HGRH HOT GAS REHEAT

SMK SMOKEDETECTOR

ALS AUXILIARY LIMIT SWITCH

IIC INTEGRATED IGNITION CONTROLLS LIMIT SWITCH

FS FLAME SENSE

PLM MALE PLUG/CONNECTOR

L1

L2

L3

T1

T2

T3

COMP 1

BM

L1

L2

L3

T1

T2

T3

RD

GY

BL

YL

RD

BL

BK

OR

RD

YL

BK

OR

GY

OR

RD

OR

RD

YL

BK

CCAS1

BC1

BC 2

CC1

PB

CCH1

GR

L1 L2 L3

GR

5

GND

L2

L3

L1

L1 L2 L3

LINE VOLTAGE

RD

7

L1

L2

L3

T2

T3

CB2LOW

SPEED

L1

L2

L3

T1

T2

T3

CB1HIGH

SPEED

L1

L2

L3

T1

T2

T3

RDBK

RD

BK

OR

LINEVOLTAGE

TR1

4

2,3

BK

OR

RD

ORBKBK RD OR OR

OR

KBYG

BKBK

CF1

CF3BR

PUPU

BR

BK

CF2

NOTES:

1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (USE COPPER CONDUCTORS ONLY).2. THE CONTROL TRANSFORMER HAS MULTIPLE HIGH VOLTAGE TAPS.

ENSURE WIRE CONNECTIONS ARE CORRECT FOR UNIT SUPPLY VOLTAGE RATING3. 208/230V SUPPLY POWER UNITS ARE FACTORY CONNECTED TO THE CONTROL TRANSFORMER 240V TAP.

MOVE WIRE CONNECTION FROM 240V TAP TO 208V TAP WHEN 208V POWER SUPPLY IS USED.4. SEE CONTROL DIAGRAM FOR CONTROL TRANSFORMER LOW VOLTAGE CONNECTIONS5. OPTIONAL; CB1,CB2,BC2 AND ASSOCIATED WIRING IS PRESENT ONLY WITH 2-SPEED EVAPORATOR MOTOR.6. USE COPPER CONDUCTORS ONLY. UNIT TERMINALS ARE NOT DESIGNED FOR OTHER CONDUCTORS.

THE USE OF OTHER TYPE CONDUCTORS MAY CAUSE DAMAGE TO THE UNIT.7. SEE ACCESSORY KIT LITERATURE FOR OPTIONAL CONVENIENCE OUTLET WIRING DIAGRAM.

BK

HVTB HIGHVOLTAGE TERMINALBOARD

BK

BK

BK

BR

PUPU

BR

BK BKBK

BR

PUPU

FC1

BR

BK BK

PU

BR

BK BK

RD

RD

BK CFHVTB

BK

RD

OROR

COMP 2

L1

L2

L3

T1

T2

T3OR

RD

YL

BK

CCAS 2

CC2

CCH2

GR

L2

L3

L1

RD

OR

OR

BR BK

BKBK

RD

OROROR

RD

BK

BKBK

OROR

OR

RD

BK

RD

FC2

PU

BRRD

RD

FC3

PUBR

RD

BK

BK

RD

OR

BKBK

BK

OR

OR

OR

BK

OR

RD

BK

RD

OR

BK

BK

OR

RD OR OR

BK BK RD OR OR

BK RD OR

RD OR

CCAS COMPRESSCONTACTOR AUXILIARY SWITCHCCH CRANKCASEHEATER

DCC180*/ DCC240* 208-230, 460, 575 / 3 / 60 1&2 SPEED

31

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.


WIRING DIAGRAMS

BC

CC1

CC2

ECON

XS(CLASS2)

BK

DA

BCS

OAT

ESPSCS

TB1 T124VAC

CFS

RSS

LDS

CO2

T2

T3

T4

T5

LPS1

HPS2

HPS1

LPS2

BL/PK

BL/PK

YL/PK

YL/PK

PK

BK

BK

GND24 VAC(PWR)

OAHVOUT (DC)

GND24VAC(COM)

24 VAC(PWR)

VOUT (DC)

VOUT (DC)24 VAC(PWR)

IAH

GND

BI8

BI5

121110

1

COM3-8RLY8

BI1BI2BI3BI4

BI7

BR

RDCOM3-8

RLY7RLY6RLY5RLY4RLY3

COM1

PU

(OAT)

(DFT)(CFS)

(EMER)(FAN PROV)

(HEAT 2)(HEAT 1)

BI6 (SHED)

RLY1RLY2COM2

(24V IN)(ECON PWR)

(EXF)(ALRM)

(ECON DMPR)

(OAH)

(ISOL GND)

(CO2)

2345678

123456789

DDC (CLASS2)

(ECON FB)

C(CLASS2)TB2

DAT

(COMP2 OUT)(COMP1 OUT)(COMP1 IN)

(COMP2 IN)

YL

YL

4

21

65

3

987

HTR PLF2

WHBR

654321AO1

AO2AO3AO4GNDGND

AG

SPCTEMPTEMP

GNDSTPT OFFSET

BK

PU

RD

BK

PUBK BK

WH WH

PK

WHBR

GR

GR

BR

BL

WH

87654321

9AI3

AI8AI7AI6AI5AI4

AI1AI2

AGNDAGND

10

WH WH

PLF

WH

WH

BL

4

5

-t°

3

BAC NET3T-21(BAC

NET)R+

SH

RD

BL

BL

CONTROL WIRING DIAGRAMDCC(180-240)****B

DDC

(SPC TMP)

(SUPPLY AIR TMP)

(SPC HUM)

(COMP PRESS 1)

(BLOWER STAGE 1)

(COMP PRESS 2)

(SPC SLIDE ADJ)

(RMT STRT/STP)

-t°

0140L05762-A

NOTES:

1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (AT LEAST 105° C). USE COPPER CONDUCTORS ONLY.USE N.E.C. CLASS 2 WIRE FOR ALL LOW VOLTAGE FIELD CONNECTIONS.

IF OPTIONAL SMOKE DETECTOR IS INSTALLED, REMOVE RED JUMPER WIRE CONNECTIONS TB1-XS TO TB1-ES.

DISCHARGE AIR TEMPERATURE SENSOR SHIPPED WITH UNIT IN CONTROL BOX.INSTALL AND CONNECT PER THE ATTACHED INSTRUCTIONS/WIRING DIAGRAM.

IF OPTIONAL ECONOMIZER IS INSTALLED, CONNECT ECON PLF TO ECONOMIZER. ECONOMIZER PLUG LOCATED IN THE RETURN AIR COMPARTMENT.

IF OPTIONAL ELECTRIC HEAT IS INSTALLED, CONNECT HTR PLF2 TO ACCESSORY HEAT PLUG IN HEAT COMPARTMENT.

SEE POWER DIAGRAM FOR CONTROL TRANSFORMER (TR1) HIGH VOLTAGE CONNECTIONS.

2

3

4

5

PU

BR

BL

BL

RD

GR

SMK/EMG TR1

PUYL

PU

BL/PK

BL/PK

YL

PK

YL/PKPK

YL/PK YLPK

YL

PU

BLRD

GR

24V

RD

LINE VOLTAGE

PK

PKPKPKPK

YL BK

YL PKPU

PK

PK

RD

BK

GR

BLYL

PU BL

BL

YL

BLBLBK

BL

BL

4

21

65

3

EXF CNTL RLYTWISTEDPAIR

GRD10VDC

ALRM CNTL RLY

GRD10VDC

BR

RD

WH

RD

RD

BR

GRGR

GR

GR BK

BK

PU

PUPU

PU

PU

PUPU

BK

BK

YL

YL

PU

PU

PU PUYL

PKPKPK

PK BL

BLBL

BLBL

BL

BL

2

2

RDRD RD

GRRD

RD

PURD

BKRD

BK

BR

BR

BR

GR

BL

6

6

PKBL

BL

BL

GND

24VAC

1

2

PK

PK

PK

DCC180*/ DCC240* 208-230, 460, 575 / 3 / 60 1 SPEED

32


HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.

WIRING DIAGRAMS

CC1

CC2

ECON

XS(CLASS2)

BK

DA

BCS

OAT

ESPSCS

TB1 T124VAC

CFS

RSS

LDS

CO2

T2

T3

T4

T5

LPS1

HPS2

HPS1

LPS2

BL/PK

BL/PK

YL/PK

YL/PK

PK

BK

BK

GND24 VAC(PWR)

OAHVOUT (DC)

GND24VAC(COM)

24 VAC(PWR)

VOUT (DC)

VOUT (DC)24 VAC(PWR)

IAH

GND

BI8

BI5

121110

1

COM3-8RLY8

BI1BI2BI3BI4

BI7

BR

RDCOM3-8

RLY7RLY6RLY5RLY4RLY3

COM1

PU

(OAT)

(CFS)

(EMER)(FAN PROV)

(HEAT 2)(HEAT 1)

BI6 (SHED)

RLY1RLY2COM2

(24V IN)(ECON PWR)

(EXF)(ALRM)

(ECON DMPR)

(OAH)

(ISOL GND)

(CO2)

2345678

123456789

DDC (CLASS2)

(ECON FB)

C(CLASS2)TB2

DAT

(COMP2 OUT)(COMP1 OUT)(COMP1 IN)

(COMP2 IN)

YL

YL

4

21

65

3

987

HTR PLF2

WHBR

654321AO1

AO2AO3AO4GNDGND

AG

SPCTEMPTEMP

GNDSTPT OFFSET

BK

PU

RD

BK

PU

BK

WH WH

PK

WHBR

GR

GR

BR

BL

WH

87654321

9AI3

AI8AI7AI6AI5AI4

AI1AI2

AGNDAGND

10

WH WH

PLF

WH

WH

BL

4

5

-t°

3

BAC NET3T-21(BAC

NET)R+SH

RD

BL

BL

CONTROL WIRING DIAGRAMDCC(180-240)****V

DDC

(SPC TMP)

(SUPPLY AIR TMP)

(SPC HUM)

(COMP PRESS 1)

(BLOWER STAGE 1)

(COMP PRESS 2)

(SPC SLIDE ADJ)

(RMT STRT/STP)

-t°

0140L05824-A

NOTES:

1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (AT LEAST 105° C). USE COPPER CONDUCTORS ONLY.USE N.E.C. CLASS 2 WIRE FOR ALL LOW VOLTAGE FIELD CONNECTIONS.

IF OPTIONAL SMOKE DETECTOR IS INSTALLED, REMOVE RED JUMPER WIRE CONNECTIONS TB1-XS TO TB1-ES.

DISCHARGE AIR TEMPERATURE SENSOR SHIPPED WITH UNIT IN CONTROL BOX.INSTALL AND CONNECT PER THE ATTACHED INSTRUCTIONS/WIRING DIAGRAM.

IF OPTIONAL ECONOMIZER IS INSTALLED, CONNECT ECON PLF TO ECONOMIZER. ECONOMIZER PLUG LOCATED IN THE RETURN AIR COMPARTMENT.

IF OPTIONAL ELECTRIC HEAT IS INSTALLED, CONNECT HTR PLF2 TO ACCESSORY HEAT PLUG IN HEAT COMPARTMENT.

SEE POWER DIAGRAM FOR CONTROL TRANSFORMER (TR1) HIGH VOLTAGE CONNECTIONS.

2

3

4

5

PU

BR

BL

BL

RD

GR

SMK/EMG TR1

PUYL

PU

BL/PK

BL/PK

YL

PK

YL/PKPK

YL/PK YLPK

YL

PU

BLRD

GR

24V

RD

LINE VOLTAGE

PK

PKPKPKPK

YL BK

YL PKPU

PK

PKRD

BK

GR

YL

PU

BL

YL

BL

BL

BK

PK

BL

BL

4

21

65

3

EXF CNTL RLYTWISTEDPAIR

GRD10VDC

ALRM CNTL RLY

GRD10VDC

BR

RD

WH

RD

RD

BR

GRGR

GR

GR BK

BK

PU

PUPU

PU

PU

PUPU

BK

BK

YL

YL

PU

PU

PU PUYL

PK

PKPKPK PKPK BL

BLBL

BLBL

BL

BL

2

2

RDRD RD

GRRD

RD

PURD

BKRD

BK

BR

BR

BR

GR

BL

6

6

PK

BC1(HI SPD)

BK

BC2(LO SPD)

BL

BL

BR BR

BR

BR

(BLOWER STAGE 2)

BL

BL

BLBL

BL

GND

24VAC

1

2

DCC180*/ DCC240* 208-230, 460, 575 / 3 / 60 2 SPEED

33

HIG

H V

OLT

AG

E!D

ISC

ON

NEC

T A

LL P

OW

ER B

EFO

RE

SER

VIC

ING

OR

INST

ALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PRES

ENT.

FA

ILU

RE

TOD

O S

O M

AY C

AU

SE P

RO

PER

TY D

AM

AG

E, P

ERSO

NA

L IN

JURY

OR

DEA

TH.


WIRING DIAGRAMS DCC300* 208-230, 460, 575 / 3 / 60 1&2 SPEED

78 6 5 4 3 2 1

014

0L06

606-

A

T1 T2LAT T6

136

5

42

LAR

1 2

1 2

1 2 3LAM

2P

LMP

LF

-t W

LA C

MC

LOW

AM

BO

PTIO

NL3

L2L1

1 2

1 2

1 2 3LAM

1P

LMP

LF

CM

R

24

56 3

1

7

HIG

HS

PE

ED

CB

1

T3T2T1

L3L2L1

BC

1

EM

T3T2T1

L3L2L1

T1T2

T3LA

C M

C T3T2T1

L3L2L1

PLF

PLM

FB 2

F6F5F4

321

321

FB 1

CM

C2

CM

C1 T3T2T1

L3L2L1

CM

1

F3F2F1

T3T2T1

L3L2L1

RDBR

PU

BK

BR

BK

BK

BR

BK

BR PU

GR

BK

BR

YL

BK YL

BR

BK

PU

PU

PU

BK

BK

RD

OR

BK RD

OR

BK

RD

OR

YL

(11)

YL

(13)

YL

(12)

GR

BL

BL

PU

PU

PU

GY

GY

GY

BK BK

BK BK

PU

(CLA

SS

2)

BK

BC

S

OA

T

PS

CS

TB1

CFS

RSS

LDS

CO

2

SM

K /E

MG

2

BK

LPS1

HPS

2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PK

YL/

PK

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HV

OU

T (D

C)

GN

D24

VA

C (C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

(DC

)

24 V

ACIAH G

ND

BI8

BI5

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7

GN

D

24V

AC

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

OA

T

CFS

EM

ER

GE

NC

Y S

HU

TDO

WN

FAN

PR

OV

SW

HE

AT/S

TG2

HEA

T/S

TG1

YL

BI6

LOA

D S

HE

D

RLY

1R

LY2

CO

M2

24V

RLY

EX

F (S

SR

)/VFD

ALR

M (S

SR

)

EC

ON

DM

PR

OA

H

SP

C T

MP

CO

2 S

EN

SO

R

DD

C (

CLA

SS

2)

EC

ON

FE

ED

BA

CK

C

GR

(CLA

SS

2)TB

2

DA

T

CO

MP

/STG

2C

OM

P/ST

G1

24V

RLY

1

24V

RLY

2

YL

EC

ON

AO

1 A

O2

AO

3 A

O4

GN

DG

ND

WH

AG

SP

CTE

MP TE

MP

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRB

RB

R

BR

GR

BR

BR

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RD

RD

RD

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BL

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PKPK

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BK

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YL

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WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EX

F-

+

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GR

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AI8

AI7

AI6

AI5

AI4

AI1

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ND

AG

ND

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WH

WH

PU

BK

PU

PLF

WH

BL

TR1

5

RD

BL

4

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3

BA

C N

ET

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NE

TR

+S

H

+-

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RH

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BL

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PU

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GR

GR

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RD

65

43

21

BR

BR

BR

BRBR

BL

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RD

BR

BR

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24V

CN

TLV

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E

LIN

EV

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E

RD

BL

RD

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SU

PP

LY A

IR T

MP

MO

D H

GR

H

SP

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UM

CO

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ESS

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1

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R/S

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C S

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RM

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STP

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D

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T3T4

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1 2 3

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(ES

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T3T2T1

L3L2L1

LOW

SP

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CB

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T3T2T1

L3L2L1

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2B

R BK

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OR

YL

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YL

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(1)

BK

(3)

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8

13

8

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L1

L1 L3

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LIN

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OLT

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EL3

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ASE

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10

YL

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YL

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1 1

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RD

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WH

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WH

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L2L3

YL

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BL

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PU

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RD

RD

YL

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RD

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BK

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RD

BK

BL

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YL

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L1 L3

L2T3T2T1

L3L2L1

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PLM321

321C

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UBR

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CO

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ING

DIA

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DC

C(3

00) *

**(3

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B, V

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DC

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GR

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N

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INK

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GE

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ON

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LOC

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TER

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AL B

LOC

K (2

4V S

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ON

HP

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RT/

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OR

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AC

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OR

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ITH

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OR

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UP P

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TS

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ION

AL L

OW

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:

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PS

PR

ESS

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IGH

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LTA

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OW

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LTA

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PLM

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LUG

/CO

NN

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TOR

6

7 8 9 10 11 12

FSW

FLO

AT

SW

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H

PM

PH

ASE

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NIT

OR

CO

ND

EN

SE

R M

OTO

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M

CR

AN

K C

ASE

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ATE

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ND

EN

SE

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ON

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C

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AS

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ND

EN

SE

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OTO

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YC

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BIE

NT

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EN

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ON

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MB

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OR

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ER

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OTO

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(T1,

T2,

T3)

. CO

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FR

OM

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C M

C (L

1, L

2, L

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O C

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1, T

2, T

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F LO

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IEN

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IT IS

INS

TALL

ED

, CO

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OM

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AM

2 - 3

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. ALS

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ON

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IRE

S F

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AT-

T

6 A

ND

LA

M2

-2 T

O T

B 2

(24V

CO

M).

O

PTI

ON

AL;

CB

1, C

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BC

2 A

ND

AS

SO

CIA

TED

WIR

ING

IS P

RE

SE

NT

O

NLY

WIT

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-SP

EE

D E

VA

PO

RAT

OR

MO

TOR

. WH

EN

PR

ES

EN

T, B

K

WIR

E F

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M D

DC

CO

NTR

OLL

ER

INS

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ON

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2 A

ND

BR

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C IN

STA

LLE

D O

N B

C1.

I

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PH

AS

E L

INE

VO

LTA

GE

MO

NIT

OR

IS IN

STA

LLE

D,C

ON

NE

CT

P

HA

SE

MO

NIT

OR

L1,

L2,

L3

TO T

HE

UN

IT P

OW

ER

BLO

CK

R

ES

PE

CTI

VE

LY. A

LSO

, RE

MO

VE

JU

MP

ER

WIR

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ON

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ON

S

TB

1 - E

S T

O T

B1-

PM

.

I

F FL

OA

T S

WIT

CH

IS IN

STA

LLE

D, R

EM

OV

E J

UM

PE

R W

IRE

C

ON

NE

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ON

S T

B1-

PM

TO

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1 - F

SW

.

I

F FR

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RO

TEC

TIO

N M

OD

ULE

IS IN

STA

LLE

D, R

EM

OV

E J

UM

PE

R

CO

NN

EC

TIO

NS

TB

1- P

S T

O T

B1

- FM

1 A

ND

TB

1 - F

M1

TO T

B1

- FM

2.

L

AT

ON

/OFF

TIM

E S

ETT

ING

S:

O

N -

TIM

E (L

EFT

CO

LUM

N) :

2,8

= O

N

OFF

- TI

ME

( R

IGH

T C

OLU

MN

) : 8

= O

N

ALL

OTH

ER

DIP

SW

ITC

HE

S O

FF

1. R

EPL

AC

EME

NT

WIR

E M

US

T BE

SA

ME

SIZ

E A

ND

TY

PE O

FIN

SU

LATI

ON

AS

OR

IGIN

AL

(AT

LEA

ST10

5� C)

. US

E C

OP

PE

RC

ON

DU

CTO

RS

ON

LY.

U

SE

N.E

.C. C

LAS

S 2

WIR

E F

OR

ALL

LO

W V

OLT

AGE

FIE

LDC

ON

NE

CTI

ON

S.

IF O

PTIO

NAL

SM

OK

E D

ETE

CTO

R IS

INST

ALL

ED

, REM

OV

E R

ED

JUM

PE

R W

IRE

CO

NN

EC

TIO

NS

TB1

-XS

TO

TB1-

ES

.

DIS

CH

AR

GE

AIR

TEM

PE

RAT

UR

E S

EN

SOR

SH

IPPE

D W

ITH

UN

IT IN

CO

NTR

OL

BO

X.IN

STA

LL A

ND

CO

NN

EC

T P

ER

THE

ATT

AC

HE

DIN

STR

UC

TIO

NS

/WIR

ING

DIA

GR

AM.

IF O

PTI

ON

AL

EC

ON

OM

IZE

R IS

INST

ALL

ED

, CO

NN

EC

T E

CO

N P

LF T

OE

CO

NO

MIZ

ER

. EC

ON

OM

IZE

RP

LUG

LO

CAT

ED IN

TH

E R

ETU

RN

AIR

CO

MP

AR

TME

NT.

(208

/230

)V U

NIT

S: I

F U

NIT

UTI

LIZE

S 2

08V

SU

PPLY

PO

WE

R, M

OV

ETR

1/2

HIG

HV

OLT

AGE

RE

D W

IRE

FR

OM

TH

E 2

40V

TE

RM

INAL

TO

TH

E20

8V T

ER

MIN

AL

460V

, 575

V U

NIT

S: R

ED

WIR

E C

ON

NE

CTE

DTO

AP

PR

OP

RIA

TE H

IGH

VO

LTAG

E IN

PU

TTE

RM

INAL

ON

TR1/

2

IF O

PTIO

NAL

ELE

CTR

IC H

EA

T IS

INST

ALLE

D, C

ON

NE

CT

HTR

PLF

2 TO

AC

CE

SSO

RY

HE

AT P

LUG

IN H

EA

T C

OM

PA

RTM

EN

T.

13

TRTR

AN

SFO

RM

ER

TB1-

T1

FM

1 (F

RE

EZE

MO

NIT

OR

1)

TB1-

T2

FM

2 (F

RE

EZE

MO

NIT

OR

2)TB

1-T3

P

M (P

HAS

E M

ON

ITO

R)

TB1-

T4

FS

W (F

LOAT

SW

ITC

H)

TB1-

T5

UN

USE

D

RD

1

9

BL

BL

BL

BL

BL

BL

BL

BL

6

HTR

PLF

2

PK

PU YL P

UB

L/P

KY

L

34

Start-up Checklist*Store in job file

Pre Start-Up(Check each item as completed)

Verify all packaging material has been removed.

Remove all shipping brackets per installation instructions.

Verify the job site voltage agrees with the unit serial plate.

Verify condensate connection is installed per installation instructions.

Verify proper clearance around the unit for safety, service, maintenance and proper unit operation.

Verify proper weatherproofing of all ductwork, roof curbs and electrical connections.

Check that the flue screen is in place.

Check gas piping for leaks.

Verify gas pressure to the unit is within the range specified on the serial plate.

Check to ensure that all fans, pulleys and wheels are secure.

Check for proper belt tension and alignment per installation instructions.

Check refrigerant piping for rubbing and leaks. Repair if necessary.

Check unit wiring to ensure it is not in contact with refrigerant piping or sharp metal edges.

Check all electrical connections and terminals. Tighten as needed.

Verify that the crankcase heaters have been energized for 24 hours.

Verify the scroll compressor(s) are rotating in the right direction.

Verify all accessories are installed and operating correctly.

Check filters and replace if necessary.

Verify the installation of the thermostat.

9/2014

Date: ___________________________________

Model Number: ___________________________________

Serial Number: ___________________________________

Technician: ___________________________________

Location: __________________________________________

__________________________________________

__________________________________________

Unit #: __________________________________________

35

Start-up Checklist

L1 - L2 L2 - L3 L3 - L1

L1 L2 L3

L1 L2 L3

L1 L2 L3

Fan 1 Fan 2 Fan 3

IN. W.C.

IN. W.C.

IN. W.C.

RPM

DB WB

DB WB

DB WB

DB

IN. W.C.

IN. W.C. (Low Fire) IN. W.C. (High Fire)

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

PSIG °F

PSIG °F

PSIG °F

BLOWER EXTERNAL STATIC PRESSURE

Return Air Static Pressure

Supply Air Static Pressure

Supply Voltage

Circuit 1 Compressor Amps

Circuit 2 Compressor Amps

Blower Amps

Condenser Fan Amps

ELECTRICAL

Total External Static Pressure

Blower Wheel RPM

TEMPERATURES

Outdoor Air Temperature

Return Air Temperature

Cooling Supply Air Temperature

Discharge Circuit 1

Heating Supply Air Temperature

PRESSURES

Gas Inlet Pressure

Gas Manifold Pressure

Suction Circuit 1

Suction Circuit 2

Discharge Circuit 2

Superheat (Orifice System)

Superheat (Orifice System)

Subcooling (TXV System)

Subcooling (TXV System)

Discharge Circuit 1

Discharge Circuit 2

(HEAT PUMP ONLY)

Suction Circuit 1

Suction Circuit 2

Start-Up(Insert the values as each item is completed.)

36

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www.daikinac.com

Our continuing commitment to quality products may mean a change in specifications without notice.

installation instructions dcc series series 15...calculations published by the air conditioning...

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