Appendix 1: Example Building and System Information

Tables

Table A-1(a): Control Sequence Descriptions for AHU1 and Related Utility Systems. 2

Table A-2(a): General Building Information. 4

Table A-3: Building Load Data. 5

Table A-4: AHU1 Design Criteria. 5

Table A-5: AHU1 Supply and Return Fan Static Requirements and Selections. 6

 

Figures

Figure A-1: The System Diagram for the Hypothetical Air-Handling System.. 6

Figure A-2: The AHU1 Mechanical Room.. 7

Figure A-3: AHU1 Psychrometrics at Design Conditions. 7

Figure A-4: AHU1 Supply-Fan and Return-Fan Static Requirements and Selections for Table A-5  8

Figure A-5(a): Test Forms for the Economizer and Chilled-Water-Coil Control Loop. 9

 

This appendix contains information on the hypothetical building and air-handling system used to illustrate the concepts in the Functional Test Guide chapter on Integrated Control and Operation. Portions of this information are also reproduced at appropriate points in the chapter for easier reference.

Project: Renovation of the student center and administration building on a Midwestern college campus located in the vicinity of St. Louis, Missouri. The building contains 47,500 conditioned square feet. The renovation project focused on the basement and first floor of the building, renovating the shipping and receiving offices, the student union, the student lounge and snack bar, and creating space for a local history museum that is operated by several of the departments on the campus. The museum has demanding requirements in terms of environment and hours of operation, but many of the other areas also operate for a significant number of hours every day.

System: As apart of the renovation work, a new air-handling system—AHU1—was installed to condition 17,500 square feet on the basement and first floor levels. Both AHU1 and the other existing systems in the building were connected to the campus central chilled water and heating water plant via pumped secondary connections to improve the building’s efficiency and redundancy. The existing boiler and air-cooled chiller located in the AHU2 roof-level mechanical room were removed from the building at the completion of the project. Because of the varying usage, AHU1 must have good turn-down characteristics and control strategies that optimize primary set points, allowing the needs of the museum to be met while minimizing the associated energy penalty.

Documentation: This chapter describes the complex issues that must be addressed in this renovation project.

Table A-1(a): Control Sequence Descriptions for AHU1 and Related Utility Systems

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Table A-1(b): Control Sequence Descriptions for AHU1 and Related Utility Systems (continued)

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Table A-1(c): Control Sequence Descriptions for AHU1 and Related Utility Systems (continued)

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Table A-2(a): General Building Information

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Table A-2(b): General Building Information (continued)

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Table A-3: Building Load Data

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Table A-4: AHU1 Design Criteria

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Table A-5: AHU1 Supply and Return Fan Static Requirements and Selections

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Figure A-1: The System Diagram for the Hypothetical Air-Handling System

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Figure A-2: The AHU1 Mechanical Room

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Figure A-3: AHU1 Psychrometrics at Design Conditions

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Figure A-4: AHU1 Supply-Fan and Return-Fan Static Requirements and Selections for Table A-5

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(Images generated by “Caps for Computer Aided Product Selection,” Ver. 2.3, which is produced by Greenheck and can be obtained at www.greenheck.com/caps.)

Figure A-5(a): Test Forms for the Economizer and Chilled-Water-Coil Control Loop

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Figure A-5(b): Test Forms for the Economizer and Chilled-Water-Coil Control Loop (continued)

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Figure A-5(c): Test Forms for the Economizer and Chilled-Water-Coil Control Loop (continued)

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Figure A-5(d): Test Forms for the Economizer and Chilled-Water-Coil Control Loop (continued)

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