INVITATION TO SUBMIT A RESEARCH PROPOSAL ON AN ASHRAE RESEARCH PROJECT

1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths

Attached is a Request-for-Proposal (RFP) for a project dealing with a subject in which you, or your institution have expressed interest. Should you decide not to submit a proposal, please circulate it to any colleague who might have interest in this subject. Sponsoring Committee TC 4.3 – Ventilation Requirements and Infiltration Budget Range: $130,000 may be more or less as determined by value of proposal and competing proposals. Scheduled Project Start Date: September 2018 or later. All proposals must be received at ASHRAE Headquarters by 8:00 AM, EST, May 15, 2018. NO EXCEPTIONS, NO EXTENSIONS. Electronic copies must be sent to rpbids@ashrae.org. Electronic signatures must be scanned and added to the file before submitting. The submission title line should read: 1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths” and “Bidding Institutions Name” (electronic pdf format, ASHRAE’s server will accept up to 10MB) If you have questions concerning the Project, we suggest you contact one of the individuals listed below: For Technical Matters Technical Contact Steven T. Taylor Taylor Engineering, LLC 1080 Marina Village Parkway, Ste 501 Alameda CA 94501 Phone: 510-263-1540 E-Mail: staylor@taylor-engineering.com

For Administrative or Procedural Matters: Manager of Research & Technical Services (MORTS) Michael R. Vaughn ASHRAE, Inc. 1791 Tullie Circle, NE Atlanta, GA 30329 Phone: 404-636-8400 Fax: 678-539-2111 E-Mail: MORTS@ashrae.net

Contractors intending to submit a proposal should so notify, by mail or e-mail, the Manager of Research and Technical Services, (MORTS) by April 30, 2018 in order that any late or additional information on the RFP may be furnished to them prior to the bid due date. All proposals must be submitted electronically. Electronic submissions require a PDF file containing the complete proposal preceded by signed copies of the two forms listed below in the order listed below. ALL electronic proposals are to be sent to rpbids@ashrae.org.

All other correspondence must be sent to ddaniel@ashrae.org and mvaughn@ashrae.org. In all cases, the proposal must be submitted to ASHRAE by 8:00 AM, EST, May 15, 2018. NO EXCEPTIONS, NO EXTENSIONS.

The following forms (Application for Grant of Funds and the Additional Information form have been combined) must accompany the proposal:

(1) ASHRAE Application for Grant of Funds (electronic signature required) and (2) Additional Information for Contractors (electronic signature required)

ASHRAE reserves the right to reject any or all bids.

State of the Art (Background) ASHRAE Standard 90.1i defines demand controlled ventilation (DCV) as a system that provides “automatic reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is less than design occupancy.” Standard 90.1 has required DCV for densely occupied spaces since the 1999 version, which also required that the DCV system be in compliance with ASHRAE Standard 62.1ii. The Standard 62.1 User’s Manualiii includes an appendix showing the underlying theory and a control scheme for using carbon dioxide (CO2) concentration for DCV in accordance with the Ventilation Rate Procedure (VRP) of ASHRAE Standard 62.1. The current version of the Manual only addresses CO2 DCV for single zone systems. Sequences for multiple zone systems are not provided1 in part due to the mathematical complexity of Standard 62.1 requirements for multiple zone recirculating systems. RP-1547iv made headway in solving these issues including:

• Validating the underlying science behind using CO2 concentration to indicate realtime occupant related ventilation requirements

• Developing control logic that provides near-optimum energy efficiency while ensuring compliance with Standard 62.1

• Demonstrating the potential energy savings of the logic with simulations But this project had two important limitations:

1. The control logic was not readily implemented into real control systems. 2. It was limited to single-duct VAV systems; the logic cannot be optimally applied to systems with

multiple recirculation paths such as VAV systems with fan-powered terminals and dual fan/dual duct VAV systems.

RP-1747v was developed to address the first limitation, including:

• Development of control sequences that can be implemented in common VAV DDC controllers • Testing the logic in realistic simulations that account for varying occupancy and concurrent

cooling loads • Assessing the impact of CO2 sensor accuracy on performance • Testing the sequences in a well instrumented test facility

This research project is intended to address the second shortcoming: expanding DCV to include multiple zone VAV systems with multiple recirculation paths, such as systems with fan-powered terminals and dual duct systems. Objective This research project proposes to: • Develop the theoretical equations required to use CO2 concentration as an indicator of occupant

related pollutant concentration for multiple zone VAV systems with multiple recirculation paths, similar to RP-1547.

• Develop practical sequences for VAV system DCV, articulated in English and represented in a logic flow diagrams, similar to RP-1747.

• Simulate the sequences in realistic models to evaluate energy and ventilation performance Scope: The scope includes developing and assessing DCV sequences for these three system types:

1. VAV System with Parallel Fan-Powered Terminals (Figure 1)

1 The 2004 version of the Manual also included an approach for single path multiple zone recirculating HVAC systems but errors were found in the approach so it was removed in subsequent editions.

2. VAV System with Series Fan-Powered Terminals (Figure 2) 3. Dual Fan/Dual Duct VAV System (Figure 3

Figure 1: VAV System with Parallel Fan-Powered Terminals

Figure 2: VAV System with Series Fan-Powered Terminals

Figure 3: Dual Fan/Dual Duct VAV System

Control sequences for terminals and air handlers shall comply with ASHRAE Guideline 36Pvi, except for ventilation related sequences which this project is intended to optimize. RP-1455 and Guideline 36P offers multiple variations and sequences of control for common terminal types. To keep the project scope and costs reasonable, only the following control sequences need be included in project scope: 1. Parallel Fan-Powered Terminal Unit, Constant Volume Fan

2. Series Fan-Powered Terminal Unit, Constant Volume Fan

3. Dual Duct VAV Terminal Unit – Snap Acting Control for zones without CO2 sensors

4. Dual Duct VAV Terminal Unit – Mixing Control with Inlet Airflow Sensors for zones with CO2 sensors

Task 1- DCV Logic Development This task will rely heavily on the work done for RP-1547. Work includes:

• Expand the Option 1 DCV ventilation logic equations developed in RP-1547 to include the additional recirculation paths of each of the systems. For fan-powered boxes, Er (see Standard 62.1 Appendix A for definition) shall be a variable for each terminal determined by the designer based on physical layout of the terminal units, e.g. per RP-1276vii.

• Develop control logic similar to Option 1 in RP-1547 for each system type, with the intent to minimize energy use while ensuring compliance with Standard 62.1.

Deliverables: Report showing DCV ventilation equations and underlying logic. The Project Monitoring Subcommittee (PMS) shall review and approve the report prior to proceeding to the next Task.

Task 2 - DCV Sequences of Control Development This task will rely heavily on the work done for RP-1747. The basic design procedure and control sequences shall be the same except expanded to include the additional recirculation paths and equations developed in Task 1. The developed sequences shall address the following requirements and issues: • Ventilation requirements of Standard 62.1 must be calculated dynamically in the control sequences

based on real-time sensing of system and occupant conditions and met by varying outdoor air intake and zone VAV minimum primary airflow set points as well as enabling terminal fans for parallel fan-powered terminals.

• Sequences must be able to be practically implemented in commercially available DDC controllers (see RP-1747).

• Sequences shall build on the existing sequences developed in RP-1747 from those in RP-1455 Advanced Control Sequences for HVAC Systems, Phase I viii and to be published in Guideline 36. The same English language style shall be used for articulating the sequences. Flow diagrams of the sequences shall also be developed but not need use the same software tool used in RP-1455 or RP-1747. The software shall: o Be publically available for a single user license cost no more than $500 o Be capable of operating in a standalone manner (not part of a larger software suite) on Microsoft

Windows 7 or 8 o Be capable of viewing and editing logic diagrams produced by this research project so that they

can be customized to HVAC applications • The sequences shall include diagnostic logic and alarms to assist in real-time fault detection

including: o CO2 sensor out of calibration o “Rogue” zones that are driving ventilation reset using %-request-hour logic from RP-1455

and Guideline 36P. • Network traffic between system and zone level controllers must be minimized to avoid performance

degradation. Deliverables:

1. English language sequences of operation

2. Flow diagram representation of control logic

The PMS shall review and approve the English language sequences prior to their conversion to flow diagrams. Task deliverables shall be approved by the PMS prior to the Contractor proceeding to the next Task.

Task 3: Simulate control sequences to evaluate energy and ventilation performance This task also will rely heavily on the work done for RP-1747. It is recommended that the same models and modeling software be used, but this is not mandatory. The performance of the control sequences developed in the previous task shall be evaluated through building energy simulation. HVAC energy use and cost and ventilation rates at the space and system level shall be evaluated relative to a baseline that represents current typical design practices, as agreed to with the PMS. In order to effectively model the DCV control logic, this task may require the iterative integration of multiple software tools, such as:

• Airflow simulation. Use multiple zone airflow simulation software (e.g. CONTAM) to verify that no less than the minimum Standard 62.1 outdoor airflow rates are maintained in each zone during all scheduled hours of occupancy. The output of this analysis can provide minimum airflow setpoints for the energy simulation software.

• Energy simulation. Use transient building HVAC simulation software (e.g. EnergyPlus, DOE-2) to calculate the energy performance.

See RP-1547 Final Report Section 5.2 and RP-1747 Task 2 for example.

The simulation study shall include the following at a minimum:

• Classroom building identical or similar to that in RP-1747. If not identical, they shall have a similar number and type of zones and shall be described in detail in the Contractor’s proposal.

• Performance shall be evaluated in the following ASHRAE Climate Zones:

• 1A (Miami) • 3A (Atlanta) • 3C (Oakland) • 5A (Chicago)

• The building models must utilize realistic occupant and internal load schedules. The schedule profiles must vary by day and by zone. See RP-1747 for example.

• The building energy simulation should use sub-hourly time steps to more closely model real controllers. The contractor’s proposal shall indicate the time step capability of the proposed simulation tool.

• Actual control logic shall be modeled including “trim & respond” logic “requests” per RP-1747.

Results from the simulation study shall be used to validate the sequences in their ability to maintain Standard 62.1 ventilation rates to each space and reduce energy costs. Deficiencies shall be identified and sequences corrected as needed. Deliverables:

1. Modeling Plan that describes proposed modeling approach and software tools to be used for PMS approval prior to modeling

2. Preliminary report that documents initial results to demonstrate the effectiveness of the modeling approach and sequences using one climate zone for PMS approval prior to modeling other buildings and climates

3. Summary report that documents the results of the full simulation study of all climate zones 4. Revised English language and flow diagrams of DCV sequences if modified

Task 4. Guideline 36 Continuous Maintenance Proposal The contractor shall develop a Continuous Maintenance Proposal (CMP) to ASHRAE Guideline 36 to incorporate the new control sequences, using ASHRAE CMP forms. This will simply be the final PMS approved sequences of operation, both English language and Flow diagrams.

Task 5. Reporting of Findings The contractor shall produce a comprehensive Final Report detailing all the work undertaken in the project. Deliverables: Progress, Financial and Final Reports, Technical Paper(s), and Data shall constitute the deliverables (“Deliverables”) under this Agreement and shall be provided as follows: a. Progress and Financial Reports Progress and Financial Reports, in a form approved by the Society, shall be made to the Society

through its Manager of Research and Technical Services at quarterly intervals; specifically on or before each January 1, April 1, June 10, and October 1 of the contract period.

Furthermore, the Institution’s Principal Investigator, subject to the Society’s approval, shall, during

the period of performance and after the Final Report has been submitted, report in person to the sponsoring Technical Committee/Task Group (TC/TG) at the annual and winter meetings, and be available to answer such questions regarding the research as may arise.

b. Final Report

A written report, design guide, or manual, (collectively, “Final Report”), in a form approved by the Society, shall be prepared by the Institution and submitted to the Society’s Manager of Research and Technical Services by the end of the Agreement term, containing complete details of all research carried out under this Agreement, including a summary of the control strategy and savings guidelines. Unless otherwise specified, the final draft report shall be furnished, either electronically or hardcopy format (6 copies) for review by the Society’s Project Monitoring Subcommittee (PMS).

Tabulated values for all measurements shall be provided as an appendix to the final report (for measurements which are adjusted by correction factors, also tabulate the corrected results and clearly show the method used for correction).

Following approval by the PMS and the TC/TG, in their sole discretion, final copies of the Final Report

will be furnished by the Institution as follows: -An executive summary in a form suitable for wide distribution to the industry and to the

public. -Two copies; one in PDF format and one in Microsoft Word. d. Science and Technology for the Built Environment or ASHRAE Transactions Technical Papers

One or more papers shall be submitted first to the ASHRAE Manager of Research and Technical Services (MORTS) and then to the “ASHRAE Manuscript Central” website-based manuscript review system in a form and containing such information as designated by the Society suitable for publication. Papers specified as deliverables should be submitted as either Research Papers for Science and Technology for the Built Environment or Technical Paper(s) for ASHRAE Transactions. Research papers contain generalized results of long-term archival value, whereas technical papers are appropriate for applied research of shorter-term value, ASHRAE Conference papers are not acceptable as deliverables from ASHRAE research projects.. The paper(s) shall conform to the instructions posted in “Manuscript Central” for an ASHRAE Transactions Technical or Science and Technology for the Built Environment papers. The paper title shall contain the research project number (1819-RP) at the end of the title in parentheses, e.g., (1819-RP).

All papers or articles prepared in connection with an ASHRAE research project, which are being submitted for inclusion in any ASHRAE publication, shall be submitted through the Manager of Research and Technical Services first and not to the publication's editor or Program Committee.

e. Data

Data is defined in General Condition VI, “DATA” f. Project Synopsis

A written synopsis totaling approximately 100 words in length and written for a broad technical audience, which documents 1. Main findings of research project, 2. Why findings are significant, and 3. How the findings benefit ASHRAE membership and/or society in general shall be submitted to the Manager of Research and Technical Services by the end of the Agreement term for publication in ASHRAE Insights

The Society may request the Institution submit a technical article suitable for publication in the Society’s ASHRAE JOURNAL. This is considered a voluntary submission and not a Deliverable. Technical articles shall be prepared using dual units; e.g., rational inch-pound with equivalent SI units shown parenthetically. SI usage shall be in accordance with IEEE/ASTM Standard SI-10.

Level of Effort It is expected that this project will require a duration of eighteen (18) months to complete at a total cost of about $130,000. Other Information for Bidders: Bidders should demonstrate experience in fundamental ventilation principals (including detailed familiarity with the multiple spaces equations in Standard 62.1, RP-1547, and RP-1747), digital control system design and control sequence development (including familiarity with RP-1455 and Guideline 36P), and energy simulation. Proposal Evaluation Criteria Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals will be evaluated based on the following criteria: 1. Contractor’s understanding of Work Statement as revealed in the proposal. (20%) 2. Qualification of personnel for this project. (30%)

Experience of Principal Investigator with fundamental ventilation principles, Standard 62.1 multiple spaces equation, and related research including RP-1547 and RP-1747

Breadth and quality of contractor team experience with RP-1455, Guideline 36P, and writing control sequences

Breadth and quality of contractor team experience with energy modeling 3. Quality of methodology proposed for conducting research. (20%)

Modeling software and procedures Organization and management plan

4. Probability of contractor’s proposal meeting objectives (25%) Detailed work plan with major tasks and key milestones All technical and logistic factors considered Reasonableness of project schedule

5. Performance of contractor on prior ASHRAE projects (no penalty for new contractors). (5%) References i ANSI/ASHRAE Standard 90.1-2016 Energy Standard for Buildings Except Low-Rise Residential Buildings. ASHRAE, Inc., Atlanta, GA. ii ANSI/ASHRAE Standard 62.1-2016 Ventilation for Acceptable Indoor Air Quality. ASHRAE, Inc., Atlanta, GA. iii Standard 62.1 User’s Manual, 2013. ASHRAE, Inc., Atlanta, GA. iv ASHRAE 1547-RP “CO2-Based Demand Controlled Ventilation For Multiple Zone HVAC Systems,” Final Report, Lin X., Lau J., Yuill, G. September 2013 v ASHRAE 1747-RP, “Implementation of RP-1547 CO2-based Demand Controlled Ventilation for Multiple Zone HVAC Systems in Direct Digital Control Systems”, Final Report scheduled for August 2017 vi ASHRAE Guideline 36P “High Performance Sequences of Operation for HVAC Systems”. In 2nd public review at this time. Expected to be published summer 2017. Drafts are available. vii ASHRAE 1276-RP “Multiple Space Effects on Ventilation System Efficiency in Standard 62”, Final Report, Yuill, D., Yuill, G., March 2007 viii Hydeman et al, Final Report ASHRAE RP-1455 Advanced Control Sequences for HVAC Systems, Phase I, January 14, 2014, http://www.techstreet.com/ashrae/subgroups/34748

INVITATION TO SUBMIT A RESEARCH PROPOSAL ON AN ASHRAE RESEARCH PROJECT

1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths

Attached is a Request-for-Proposal (RFP) for a project dealing with a subject in which you, or your institution have expressed interest. Should you decide not to submit a proposal, please circulate it to any colleague who might have interest in this subject. Sponsoring Committee TC 4.3 – Ventilation Requirements and Infiltration Budget Range: $130,000 may be more or less as determined by value of proposal and competing proposals. Scheduled Project Start Date: April 1, 2018 or later. All proposals must be received at ASHRAE Headquarters by 8:00 AM, EST, May 15, 2017 December 15, 2017. NO EXCEPTIONS, NO EXTENSIONS. Electronic copies must be sent to rpbids@ashrae.org. Electronic signatures must be scanned and added to the file before submitting. The submission title line should read: 1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths” and “Bidding Institutions Name” (electronic pdf format, ASHRAE’s server will accept up to 10MB) If you have questions concerning the Project, we suggest you contact one of the individuals listed below: For Technical Matters Technical Contact Steven T. Taylor Taylor Engineering, LLC 1080 Marina Village Parkway, Ste 501 Alameda CA 94501 Phone: 510-263-1540 E-Mail: staylor@taylor-engineering.com

For Administrative or Procedural Matters: Manager of Research & Technical Services (MORTS) Michael R. Vaughn ASHRAE, Inc. 1791 Tullie Circle, NE Atlanta, GA 30329 Phone: 404-636-8400 Fax: 678-539-2111 E-Mail: MORTS@ashrae.net

Contractors intending to submit a proposal should so notify, by mail or e-mail, the Manager of Research and Technical Services, (MORTS) by May 1, 2017 December 1, 2017 in order that any late or additional information on the RFP may be furnished to them prior to the bid due date. Potential Bidders that register with ASHRAE for TRP-1819 will also be provided with complementary copies of RP-1455, RP-1547, and RP-1747 final reports when available and upon request. All proposals must be submitted electronically. Electronic submissions require a PDF file containing the complete proposal preceded by signed copies of the two forms listed below in the order listed below. ALL electronic proposals are to be sent to rpbids@ashrae.org.

All other correspondence must be sent to ddaniel@ashrae.org and mvaughn@ashrae.org. In all cases, the proposal must be submitted to ASHRAE by 8:00 AM, EST, May 15, 2017. December 15, 2017. NO EXCEPTIONS, NO EXTENSIONS.

The following forms (Application for Grant of Funds and the Additional Information form have been combined) must accompany the proposal:

(1) ASHRAE Application for Grant of Funds (electronic signature required) and (2) Additional Information for Contractors (electronic signature required)

ASHRAE reserves the right to reject any or all bids.

State of the Art (Background) ASHRAE Standard 90.1i defines demand controlled ventilation (DCV) as a system that provides “automatic reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is less than design occupancy.” Standard 90.1 has required DCV for densely occupied spaces since the 1999 version, which also required that the DCV system be in compliance with ASHRAE Standard 62.1ii. The Standard 62.1 User’s Manualiii includes an appendix showing the underlying theory and a control scheme for using carbon dioxide (CO2) concentration for DCV in accordance with the Ventilation Rate Procedure (VRP) of ASHRAE Standard 62.1. The current version of the Manual only addresses CO2 DCV for single zone systems. Sequences for multiple zone systems are not provided1 in part due to the mathematical complexity of Standard 62.1 requirements for multiple zone recirculating systems. RP-1547iv made headway in solving these issues including:

• Validating the underlying science behind using CO2 concentration to indicate realtime occupant related ventilation requirements

• Developing control logic that provides near-optimum energy efficiency while ensuring compliance with Standard 62.1

• Demonstrating the potential energy savings of the logic with simulations But this project had two important limitations:

1. The control logic was not readily implemented into real control systems. 2. It was limited to single-duct VAV systems; the logic cannot be optimally applied to systems with

multiple recirculation paths such as VAV systems with fan-powered terminals and dual fan/dual duct VAV systems.

RP-1747v was developed to address the first limitation, including:

• Development of control sequences that can be implemented in common VAV DDC controllers • Testing the logic in realistic simulations that account for varying occupancy and concurrent

cooling loads • Assessing the impact of CO2 sensor accuracy on performance • Testing the sequences in a well instrumented test facility

This research project is intended to address the second shortcoming: expanding DCV to include multiple zone VAV systems with multiple recirculation paths, such as systems with fan-powered terminals and dual duct systems. Objective This research project proposes to: • Develop the theoretical equations required to use CO2 concentration as an indicator of occupant

related pollutant concentration for multiple zone VAV systems with multiple recirculation paths, similar to RP-1547.

• Develop practical sequences for VAV system DCV, articulated in English and represented in a logic flow diagrams, similar to RP-1747.

• Simulate the sequences in realistic models to evaluate energy and ventilation performance Scope: The scope includes developing and assessing DCV sequences for these three system types:

1. VAV System with Parallel Fan-Powered Terminals (Figure 1)

1 The 2004 version of the Manual also included an approach for single path multiple zone recirculating HVAC systems but errors were found in the approach so it was removed in subsequent editions.

2. VAV System with Series Fan-Powered Terminals (Figure 2) 3. Dual Fan/Dual Duct VAV System (Figure 3

Figure 1: VAV System with Parallel Fan-Powered Terminals

Figure 2: VAV System with Series Fan-Powered Terminals

Figure 3: Dual Fan/Dual Duct VAV System

Control sequences for terminals and air handlers shall comply with ASHRAE Guideline 36Pvi, except for ventilation related sequences which this project is intended to optimize. RP-1455 and Guideline 36P offers multiple variations and sequences of control for common terminal types. To keep the project scope and costs reasonable, only the following control sequences need be included in project scope: 1. Parallel Fan-Powered Terminal Unit, Constant Volume Fan

2. Series Fan-Powered Terminal Unit, Constant Volume Fan

3. Dual Duct VAV Terminal Unit – Snap Acting Control for zones without CO2 sensors

4. Dual Duct VAV Terminal Unit – Mixing Control with Inlet Airflow Sensors for zones with CO2 sensors

Task 1- DCV Logic Development This task will rely heavily on the work done for RP-1547. Work includes:

• Expand the Option 1 DCV ventilation logic equations developed in RP-1547 to include the additional recirculation paths of each of the systems. For fan-powered boxes, Er (see Standard 62.1 Appendix A for definition) shall be a variable for each terminal determined by the designer based on physical layout of the terminal units, e.g. per RP-1276vii.

• Develop control logic similar to Option 1 in RP-1547 for each system type, with the intent to minimize energy use while ensuring compliance with Standard 62.1.

Deliverables: Report showing DCV ventilation equations and underlying logic. The Project Monitoring Subcommittee (PMS) shall review and approve the report prior to proceeding to the next Task.

Task 2 - DCV Sequences of Control Development This task will rely heavily on the work done for RP-1747. The basic design procedure and control sequences shall be the same except expanded to include the additional recirculation paths and equations developed in Task 1. The developed sequences shall address the following requirements and issues: • Ventilation requirements of Standard 62.1 must be calculated dynamically in the control sequences

based on real-time sensing of system and occupant conditions and met by varying outdoor air intake and zone VAV minimum primary airflow set points as well as enabling terminal fans for parallel fan-powered terminals.

• Sequences must be able to be practically implemented in commercially available DDC controllers (see RP-1747).

• Sequences shall build on the existing sequences developed in RP-1747 from those in RP-1455 Advanced Control Sequences for HVAC Systems, Phase I viii and to be published in Guideline 36. The same English language style shall be used for articulating the sequences. Flow diagrams of the sequences shall also be developed but not need use the same software tool used in RP-1455 or RP-1747. The software shall: o Be publically available for a single user license cost no more than $500 o Be capable of operating in a standalone manner (not part of a larger software suite) on Microsoft

Windows 7 or 8 o Be capable of viewing and editing logic diagrams produced by this research project so that they

can be customized to HVAC applications • The sequences shall include diagnostic logic and alarms to assist in real-time fault detection

including: o CO2 sensor out of calibration o “Rogue” zones that are driving ventilation reset using %-request-hour logic from RP-1455

and Guideline 36P. • Network traffic between system and zone level controllers must be minimized to avoid performance

degradation. Deliverables:

1. English language sequences of operation

2. Flow diagram representation of control logic

The PMS shall review and approve the English language sequences prior to their conversion to flow diagrams. Task deliverables shall be approved by the PMS prior to the Contractor proceeding to the next Task.

Task 3: Simulate control sequences to evaluate energy and ventilation performance This task also will rely heavily on the work done for RP-1747. It is recommended that the same models and modeling software be used, but this is not mandatory. The performance of the control sequences developed in the previous task shall be evaluated through building energy simulation. HVAC energy use and cost and ventilation rates at the space and system level shall be evaluated relative to a baseline that represents current typical design practices, as agreed to with the PMS. In order to effectively model the DCV control logic, this task may require the iterative integration of multiple software tools, such as:

• Airflow simulation. Use multiple zone airflow simulation software (e.g. CONTAM) to verify that no less than the minimum Standard 62.1 outdoor airflow rates are maintained in each zone during all scheduled hours of occupancy. The output of this analysis can provide minimum airflow setpoints for the energy simulation software.

• Energy simulation. Use transient building HVAC simulation software (e.g. EnergyPlus, DOE-2) to calculate the energy performance.

See RP-1547 Final Report Section 5.2 and RP-1747 Task 2 for example.

The simulation study shall include the following at a minimum:

• Classroom building identical or similar to that in RP-1747. If not identical, they shall have a similar number and type of zones and shall be described in detail in the Contractor’s proposal.

• Performance shall be evaluated in the following ASHRAE Climate Zones:

• 1A (Miami) • 3A (Atlanta) • 3C (Oakland) • 5A (Chicago)

• The building models must utilize realistic occupant and internal load schedules. The schedule profiles must vary by day and by zone. See RP-1747 for example.

• The building energy simulation should use sub-hourly time steps to more closely model real controllers. The contractor’s proposal shall indicate the time step capability of the proposed simulation tool.

• Actual control logic shall be modeled including “trim & respond” logic “requests” per RP-1747.

Results from the simulation study shall be used to validate the sequences in their ability to maintain Standard 62.1 ventilation rates to each space and reduce energy costs. Deficiencies shall be identified and sequences corrected as needed. Deliverables:

1. Modeling Plan that describes proposed modeling approach and software tools to be used for PMS approval prior to modeling

2. Preliminary report that documents initial results to demonstrate the effectiveness of the modeling approach and sequences using one climate zone for PMS approval prior to modeling other buildings and climates

3. Summary report that documents the results of the full simulation study of all climate zones 4. Revised English language and flow diagrams of DCV sequences if modified

Task 4. Guideline 36 Continuous Maintenance Proposal The contractor shall develop a Continuous Maintenance Proposal (CMP) to ASHRAE Guideline 36 to incorporate the new control sequences, using ASHRAE CMP forms. This will simply be the final PMS approved sequences of operation, both English language and Flow diagrams.

Task 5. Reporting of Findings The contractor shall produce a comprehensive Final Report detailing all the work undertaken in the project. Deliverables: Progress, Financial and Final Reports, Technical Paper(s), and Data shall constitute the deliverables (“Deliverables”) under this Agreement and shall be provided as follows: a. Progress and Financial Reports Progress and Financial Reports, in a form approved by the Society, shall be made to the Society

through its Manager of Research and Technical Services at quarterly intervals; specifically on or before each January 1, April 1, June 10, and October 1 of the contract period.

Furthermore, the Institution’s Principal Investigator, subject to the Society’s approval, shall, during

the period of performance and after the Final Report has been submitted, report in person to the sponsoring Technical Committee/Task Group (TC/TG) at the annual and winter meetings, and be available to answer such questions regarding the research as may arise.

b. Final Report

A written report, design guide, or manual, (collectively, “Final Report”), in a form approved by the Society, shall be prepared by the Institution and submitted to the Society’s Manager of Research and Technical Services by the end of the Agreement term, containing complete details of all research carried out under this Agreement, including a summary of the control strategy and savings guidelines. Unless otherwise specified, the final draft report shall be furnished, either electronically or hardcopy format (6 copies) for review by the Society’s Project Monitoring Subcommittee (PMS).

Tabulated values for all measurements shall be provided as an appendix to the final report (for measurements which are adjusted by correction factors, also tabulate the corrected results and clearly show the method used for correction).

Following approval by the PMS and the TC/TG, in their sole discretion, final copies of the Final Report

will be furnished by the Institution as follows: -An executive summary in a form suitable for wide distribution to the industry and to the

public. -Two copies; one in PDF format and one in Microsoft Word. d. Science and Technology for the Built Environment or ASHRAE Transactions Technical Papers

One or more papers shall be submitted first to the ASHRAE Manager of Research and Technical Services (MORTS) and then to the “ASHRAE Manuscript Central” website-based manuscript review system in a form and containing such information as designated by the Society suitable for publication. Papers specified as deliverables should be submitted as either Research Papers for Science and Technology for the Built Environment or Technical Paper(s) for ASHRAE Transactions. Research papers contain generalized results of long-term archival value, whereas technical papers are appropriate for applied research of shorter-term value, ASHRAE Conference papers are not acceptable as deliverables from ASHRAE research projects.. The paper(s) shall conform to the instructions posted in “Manuscript Central” for an ASHRAE Transactions Technical or Science and Technology for the Built Environment papers. The paper title shall contain the research project number (1819-RP) at the end of the title in parentheses, e.g., (1819-RP).

All papers or articles prepared in connection with an ASHRAE research project, which are being submitted for inclusion in any ASHRAE publication, shall be submitted through the Manager of Research and Technical Services first and not to the publication's editor or Program Committee.

e. Data

Data is defined in General Condition VI, “DATA” f. Project Synopsis

A written synopsis totaling approximately 100 words in length and written for a broad technical audience, which documents 1. Main findings of research project, 2. Why findings are significant, and 3. How the findings benefit ASHRAE membership and/or society in general shall be submitted to the Manager of Research and Technical Services by the end of the Agreement term for publication in ASHRAE Insights

The Society may request the Institution submit a technical article suitable for publication in the Society’s ASHRAE JOURNAL. This is considered a voluntary submission and not a Deliverable. Technical articles shall be prepared using dual units; e.g., rational inch-pound with equivalent SI units shown parenthetically. SI usage shall be in accordance with IEEE/ASTM Standard SI-10.

Level of Effort It is expected that this project will require a duration of eighteen (18) months to complete at a total cost of about $130,000. Other Information for Bidders: Bidders should demonstrate experience in fundamental ventilation principals (including detailed familiarity with the multiple spaces equations in Standard 62.1, RP-1547, and RP-1747), digital control system design and control sequence development (including familiarity with RP-1455 and Guideline 36P), and energy simulation. Proposal Evaluation Criteria Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals will be evaluated based on the following criteria: 1. Contractor’s understanding of Work Statement as revealed in the proposal. (20%) 2. Qualification of personnel for this project. (30%)

Experience of Principal Investigator with fundamental ventilation principles, Standard 62.1 multiple spaces equation, and related research including RP-1547 and RP-1747

Breadth and quality of contractor team experience with RP-1455, Guideline 36P, and writing control sequences

Breadth and quality of contractor team experience with energy modeling 3. Quality of methodology proposed for conducting research. (20%)

Modeling software and procedures Organization and management plan

4. Probability of contractor’s proposal meeting objectives (25%) Detailed work plan with major tasks and key milestones All technical and logistic factors considered Reasonableness of project schedule

5. Performance of contractor on prior ASHRAE projects (no penalty for new contractors). (5%) References i ANSI/ASHRAE Standard 90.1-2016 Energy Standard for Buildings Except Low-Rise Residential Buildings. ASHRAE, Inc., Atlanta, GA. ii ANSI/ASHRAE Standard 62.1-2016 Ventilation for Acceptable Indoor Air Quality. ASHRAE, Inc., Atlanta, GA. iii Standard 62.1 User’s Manual, 2013. ASHRAE, Inc., Atlanta, GA. iv ASHRAE 1547-RP “CO2-Based Demand Controlled Ventilation For Multiple Zone HVAC Systems,” Final Report, Lin X., Lau J., Yuill, G. September 2013 v ASHRAE 1747-RP, “Implementation of RP-1547 CO2-based Demand Controlled Ventilation for Multiple Zone HVAC Systems in Direct Digital Control Systems”, Final Report scheduled for August 2017 vi ASHRAE Guideline 36P “High Performance Sequences of Operation for HVAC Systems”. In 2nd public review at this time. Expected to be published summer 2017. Drafts are available. vii ASHRAE 1276-RP “Multiple Space Effects on Ventilation System Efficiency in Standard 62”, Final Report, Yuill, D., Yuill, G., March 2007 viii Hydeman et al, Final Report ASHRAE RP-1455 Advanced Control Sequences for HVAC Systems, Phase I, January 14, 2014, http://www.techstreet.com/ashrae/subgroups/34748

INVITATION TO SUBMIT A RESEARCH PROPOSAL ON AN ASHRAE RESEARCH PROJECT

1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths

Attached is a Request-for-Proposal (RFP) for a project dealing with a subject in which you, or your institution have expressed interest. Should you decide not to submit a proposal, please circulate it to any colleague who might have interest in this subject. Sponsoring Committee TC 4.3 – Ventilation Requirements and Infiltration Co-sponsored by: Budget Range: $130,000 may be more or less as determined by value of proposal and competing proposals. Scheduled Project Start Date: September 1, 2017 or later. All proposals must be received at ASHRAE Headquarters by 8:00 AM, EDT, May 15, 2017. NO EXCEPTIONS, NO EXTENSIONS. Electronic copies must be sent to rpbids@ashrae.org. Electronic signatures must be scanned and added to the file before submitting. The submission title line should read: 1819-TRP, CO2 Demand Controlled Ventilation in Multiple Zone VAV Systems with Multiple Recirculation Paths” and “Bidding Institutions Name” (electronic pdf format, ASHRAE’s server will accept up to 10MB) If you have questions concerning the Project, we suggest you contact one of the individuals listed below: For Technical Matters Technical Contact Steven T. Taylor Taylor Engineering, LLC 1080 Marina Village Parkway, Ste 501 Alameda CA 94501 Phone: 510-263-1540 E-Mail: staylor@taylor-engineering.com

For Administrative or Procedural Matters: Manager of Research & Technical Services (MORTS) Michael R. Vaughn ASHRAE, Inc. 1791 Tullie Circle, NE Atlanta, GA 30329 Phone: 404-636-8400 Fax: 678-539-2111 E-Mail: MORTS@ashrae.net

Contractors intending to submit a proposal should so notify, by mail or e-mail, the Manager of Research and Technical Services, (MORTS) by May 1, 2017 in order that any late or additional information on the RFP may be furnished to them prior to the bid due date. All proposals must be submitted electronically. Electronic submissions require a PDF file containing the complete proposal preceded by signed copies of the two forms listed below in the order listed below. ALL electronic proposals are to be sent to rpbids@ashrae.org.

All other correspondence must be sent to ddaniel@ashrae.org and mvaughn@ashrae.org. In all cases, the proposal must be submitted to ASHRAE by 8:00 AM, EDT, May 15, 2017. NO EXCEPTIONS, NO EXTENSIONS.

The following forms (Application for Grant of Funds and the Additional Information form have been combined) must accompany the proposal:

(1) ASHRAE Application for Grant of Funds (electronic signature required) and (2) Additional Information for Contractors (electronic signature required)

ASHRAE reserves the right to reject any or all bids.

State of the Art (Background) ASHRAE Standard 90.1i defines demand controlled ventilation (DCV) as a system that provides “automatic reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is less than design occupancy.” Standard 90.1 has required DCV for densely occupied spaces since the 1999 version, which also required that the DCV system be in compliance with ASHRAE Standard 62.1ii. The Standard 62.1 User’s Manualiii includes an appendix showing the underlying theory and a control scheme for using carbon dioxide (CO2) concentration for DCV in accordance with the Ventilation Rate Procedure (VRP) of ASHRAE Standard 62.1. The current version of the Manual only addresses CO2 DCV for single zone systems. Sequences for multiple zone systems are not provided1 in part due to the mathematical complexity of Standard 62.1 requirements for multiple zone recirculating systems. RP-1547iv made headway in solving these issues including:

• Validating the underlying science behind using CO2 concentration to indicate realtime occupant related ventilation requirements

• Developing control logic that provides near-optimum energy efficiency while ensuring compliance with Standard 62.1

• Demonstrating the potential energy savings of the logic with simulations But this project had two important limitations:

1. The control logic was not readily implemented into real control systems. 2. It was limited to single-duct VAV systems; the logic cannot be optimally applied to systems with

multiple recirculation paths such as VAV systems with fan-powered terminals and dual fan/dual duct VAV systems.

RP-1747v was developed to address the first limitation, including:

• Development of control sequences that can be implemented in common VAV DDC controllers • Testing the logic in realistic simulations that account for varying occupancy and concurrent

cooling loads • Assessing the impact of CO2 sensor accuracy on performance • Testing the sequences in a well instrumented test facility

This research project is intended to address the second shortcoming: expanding DCV to include multiple zone VAV systems with multiple recirculation paths, such as systems with fan-powered terminals and dual duct systems. Objective This research project proposes to:

• Develop the theoretical equations required to use CO2 concentration as an indicator of occupant related pollutant concentration for multiple zone VAV systems with multiple recirculation paths, similar to RP-1547.

• Develop practical sequences for VAV system DCV, articulated in English and represented in a logic flow diagrams, similar to RP-1747.

• Simulate the sequences in realistic models to evaluate energy and ventilation performance Scope: The scope includes developing and assessing DCV sequences for these three system types:

1. VAV System with Parallel Fan-Powered Terminals (Figure 1)

1 The 2004 version of the Manual also included an approach for single path multiple zone recirculating HVAC systems but errors were found in the approach so it was removed in subsequent editions.

2. VAV System with Series Fan-Powered Terminals (Figure 2) 3. Dual Fan/Dual Duct VAV System (Figure 3

Figure 1: VAV System with Parallel Fan-Powered Terminals

Figure 2: VAV System with Series Fan-Powered Terminals

Figure 3: Dual Fan/Dual Duct VAV System

Control sequences for terminals and air handlers shall comply with ASHRAE Guideline 36Pvi, except for ventilation related sequences which this project is intended to optimize. RP-1455 and Guideline 36P offers multiple variations and sequences of control for common terminal types. To keep the project scope and costs reasonable, only the following control sequences need be included in project scope: 1. Parallel Fan-Powered Terminal Unit, Constant Volume Fan

2. Series Fan-Powered Terminal Unit, Constant Volume Fan

3. Dual Duct VAV Terminal Unit – Snap Acting Control for zones without CO2 sensors

4. Dual Duct VAV Terminal Unit – Mixing Control with Inlet Airflow Sensors for zones with CO2 sensors

Task 1- DCV Logic Development This task will rely heavily on the work done for RP-1547. Work includes:

• Expand the Option 1 DCV ventilation logic equations developed in RP-1547 to include the additional recirculation paths of each of the systems. For fan-powered boxes, Er (see Standard 62.1 Appendix A for definition) shall be a variable for each terminal determined by the designer based on physical layout of the terminal units, e.g. per RP-1276vii.

• Develop control logic similar to Option 1 in RP-1547 for each system type, with the intent to minimize energy use while ensuring compliance with Standard 62.1.

Deliverables: Report showing DCV ventilation equations and underlying logic. The Project Monitoring Subcommittee (PMS) shall review and approve the report prior to proceeding to the next Task.

Task 2 - DCV Sequences of Control Development This task will rely heavily on the work done for RP-1747. The basic design procedure and control sequences shall be the same except expanded to include the additional recirculation paths and equations developed in Task 1. The developed sequences shall address the following requirements and issues: • Ventilation requirements of Standard 62.1 must be calculated dynamically in the control sequences

based on real-time sensing of system and occupant conditions and met by varying outdoor air intake and zone VAV minimum primary airflow set points as well as enabling terminal fans for parallel fan-powered terminals.

• Sequences must be able to be practically implemented in commercially available DDC controllers (see RP-1747).

• Sequences shall build on the existing sequences developed in RP-1747 from those in RP-1455 Advanced Control Sequences for HVAC Systems, Phase I viii and to be published in Guideline 36. The same English language style shall be used for articulating the sequences. Flow diagrams of the sequences shall also be developed but not need use the same software tool used in RP-1455 or RP-1747. The software shall: o Be publically available for a single user license cost no more than $500 o Be capable of operating in a standalone manner (not part of a larger software suite) on Microsoft

Windows 7 or 8 o Be capable of viewing and editing logic diagrams produced by this research project so that they

can be customized to HVAC applications • The sequences shall include diagnostic logic and alarms to assist in real-time fault detection

including: o CO2 sensor out of calibration o “Rogue” zones that are driving ventilation reset using %-request-hour logic from RP-1455

and Guideline 36P. • Network traffic between system and zone level controllers must be minimized to avoid performance

degradation. Deliverables:

1. English language sequences of operation

2. Flow diagram representation of control logic

The PMS shall review and approve the English language sequences prior to their conversion to flow diagrams. Task deliverables shall be approved by the PMS prior to the Contractor proceeding to the next Task.

Task 3: Simulate control sequences to evaluate energy and ventilation performance This task also will rely heavily on the work done for RP-1747. It is recommended that the same models and modeling software be used, but this is not mandatory. The performance of the control sequences developed in the previous task shall be evaluated through building energy simulation. HVAC energy use and cost and ventilation rates at the space and system level shall be evaluated relative to a baseline that represents current typical design practices, as agreed to with the PMS. In order to effectively model the DCV control logic, this task may require the iterative integration of multiple software tools, such as:

• Airflow simulation. Use multiple zone airflow simulation software (e.g. CONTAM) to verify that no less than the minimum Standard 62.1 outdoor airflow rates are maintained in each zone during all scheduled hours of occupancy. The output of this analysis can provide minimum airflow setpoints for the energy simulation software.

• Energy simulation. Use transient building HVAC simulation software (e.g. EnergyPlus, DOE-2) to calculate the energy performance.

See RP-1547 Final Report Section 5.2 and RP-1747 Task 2 for example.

The simulation study shall include the following at a minimum:

• Classroom building identical or similar to that in RP-1747. If not identical, they shall have a similar number and type of zones and shall be described in detail in the Contractor’s proposal.

• Performance shall be evaluated in the following ASHRAE Climate Zones:

• 1A (Miami) • 3A (Atlanta) • 3C (Oakland) • 5A (Chicago)

• The building models must utilize realistic occupant and internal load schedules. The schedule profiles must vary by day and by zone. See RP-1747 for example.

• The building energy simulation should use sub-hourly time steps to more closely model real controllers. The contractor’s proposal shall indicate the time step capability of the proposed simulation tool.

• Actual control logic shall be modeled including “trim & respond” logic “requests” per RP-1747.

Results from the simulation study shall be used to validate the sequences in their ability to maintain Standard 62.1 ventilation rates to each space and reduce energy costs. Deficiencies shall be identified and sequences corrected as needed. Deliverables:

1. Modeling Plan that describes proposed modeling approach and software tools to be used for PMS approval prior to modeling

2. Preliminary report that documents initial results to demonstrate the effectiveness of the modeling approach and sequences using one climate zone for PMS approval prior to modeling other buildings and climates

3. Summary report that documents the results of the full simulation study of all climate zones 4. Revised English language and flow diagrams of DCV sequences if modified

Task 4. Guideline 36 Continuous Maintenance Proposal The contractor shall develop a Continuous Maintenance Proposal (CMP) to ASHRAE Guideline 36 to incorporate the new control sequences, using ASHRAE CMP forms. This will simply be the final PMS approved sequences of operation, both English language and Flow diagrams.

Task 5. Reporting of Findings The contractor shall produce a comprehensive Final Report detailing all the work undertaken in the project. Deliverables: Progress, Financial and Final Reports, Technical Paper(s), and Data shall constitute the deliverables (“Deliverables”) under this Agreement and shall be provided as follows: a. Progress and Financial Reports Progress and Financial Reports, in a form approved by the Society, shall be made to the Society

through its Manager of Research and Technical Services at quarterly intervals; specifically on or before each January 1, April 1, June 10, and October 1 of the contract period.

Furthermore, the Institution’s Principal Investigator, subject to the Society’s approval, shall, during

the period of performance and after the Final Report has been submitted, report in person to the sponsoring Technical Committee/Task Group (TC/TG) at the annual and winter meetings, and be available to answer such questions regarding the research as may arise.

b. Final Report

A written report, design guide, or manual, (collectively, “Final Report”), in a form approved by the Society, shall be prepared by the Institution and submitted to the Society’s Manager of Research and Technical Services by the end of the Agreement term, containing complete details of all research carried out under this Agreement, including a summary of the control strategy and savings guidelines. Unless otherwise specified, the final draft report shall be furnished, either electronically or hardcopy format (6 copies) for review by the Society’s Project Monitoring Subcommittee (PMS).

Tabulated values for all measurements shall be provided as an appendix to the final report (for measurements which are adjusted by correction factors, also tabulate the corrected results and clearly show the method used for correction).

Following approval by the PMS and the TC/TG, in their sole discretion, final copies of the Final Report

will be furnished by the Institution as follows: -An executive summary in a form suitable for wide distribution to the industry and to the

public. -Two copies; one in PDF format and one in Microsoft Word. d. Science and Technology for the Built Environment or ASHRAE Transactions Technical Papers

One or more papers shall be submitted first to the ASHRAE Manager of Research and Technical Services (MORTS) and then to the “ASHRAE Manuscript Central” website-based manuscript review system in a form and containing such information as designated by the Society suitable for publication. Papers specified as deliverables should be submitted as either Research Papers for Science and Technology for the Built Environment or Technical Paper(s) for ASHRAE Transactions. Research papers contain generalized results of long-term archival value, whereas technical papers are appropriate for applied research of shorter-term value, ASHRAE Conference papers are not acceptable as deliverables from ASHRAE research projects.. The paper(s) shall conform to the instructions posted in “Manuscript Central” for an ASHRAE Transactions Technical or Science and Technology for the Built Environment papers. The paper title shall contain the research project number (1819-RP) at the end of the title in parentheses, e.g., (1819-RP).

All papers or articles prepared in connection with an ASHRAE research project, which are being submitted for inclusion in any ASHRAE publication, shall be submitted through the Manager of Research and Technical Services first and not to the publication's editor or Program Committee.

e. Data

Data is defined in General Condition VI, “DATA” f. Project Synopsis

A written synopsis totaling approximately 100 words in length and written for a broad technical audience, which documents 1. Main findings of research project, 2. Why findings are significant, and 3. How the findings benefit ASHRAE membership and/or society in general shall be submitted to the Manager of Research and Technical Services by the end of the Agreement term for publication in ASHRAE Insights

The Society may request the Institution submit a technical article suitable for publication in the Society’s ASHRAE JOURNAL. This is considered a voluntary submission and not a Deliverable. Technical articles shall be prepared using dual units; e.g., rational inch-pound with equivalent SI units shown parenthetically. SI usage shall be in accordance with IEEE/ASTM Standard SI-10.

Level of Effort It is expected that this project will require a duration of eighteen (18) months to complete at a total cost of about $130,000. Other Information for Bidders: Bidders should demonstrate experience in fundamental ventilation principals (including detailed familiarity with the multiple spaces equations in Standard 62.1, RP-1547, and RP-1747), digital control system design and control sequence development (including familiarity with RP-1455 and Guideline 36P), and energy simulation. Proposal Evaluation Criteria Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals submitted to ASHRAE for this project should include the following minimum information: Proposals will be evaluated based on the following criteria: 1. Contractor’s understanding of Work Statement as revealed in the proposal. (20%) 2. Qualification of personnel for this project. (30%)

Experience of Principal Investigator with fundamental ventilation principles, Standard 62.1 multiple spaces equation, and related research including RP-1547 and RP-1747

Breadth and quality of contractor team experience with RP-1455, Guideline 36P, and writing control sequences

Breadth and quality of contractor team experience with energy modeling 3. Quality of methodology proposed for conducting research. (20%)

Modeling software and procedures Organization and management plan

4. Probability of contractor’s proposal meeting objectives (25%) Detailed work plan with major tasks and key milestones All technical and logistic factors considered Reasonableness of project schedule

5. Performance of contractor on prior ASHRAE projects (no penalty for new contractors). (5%) References i ANSI/ASHRAE Standard 90.1-2016 Energy Standard for Buildings Except Low-Rise Residential Buildings. ASHRAE, Inc., Atlanta, GA.

ii ANSI/ASHRAE Standard 62.1-2016 Ventilation for Acceptable Indoor Air Quality. ASHRAE, Inc., Atlanta, GA.

iii Standard 62.1 User’s Manual, 2013. ASHRAE, Inc., Atlanta, GA.

iv ASHRAE 1547-RP “CO2-Based Demand Controlled Ventilation For Multiple Zone HVAC Systems,” Final Report, Lin X., Lau J., Yuill, G. September 2013 v ASHRAE 1747-RP, “Implementation of RP-1547 CO2-based Demand Controlled Ventilation for Multiple Zone HVAC Systems in Direct Digital Control Systems”, Final Report scheduled for August 2017 vi ASHRAE Guideline 36P “High Performance Sequences of Operation for HVAC Systems”. In 2nd public review at this time. Expected to be published summer 2017. Drafts are available. vii ASHRAE 1276-RP “Multiple Space Effects on Ventilation System Efficiency in Standard 62”, Final Report, Yuill, D., Yuill, G., March 2007 viii Hydeman et al, Final Report ASHRAE RP-1455 Advanced Control Sequences for HVAC Systems, Phase I, January 14, 2014, http://www.techstreet.com/ashrae/subgroups/34748