CCCRCxToolkit-Sequence_Operation_Sample_2007.doc

CCCRCxToolkit-Sequence_Operation_Sample_2007.doc - Appendix...

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Appendix B: Building Systems Sequence of Operations - Sample The Building Systems Sequence of Operations outlines the as-operating sequence of operations for all HVAC and lighting control systems, as well as integration of the fire/life safety and HVAC systems. This document was developed in order to satisfy LEED-EB Energy & Atmosphere prerequisite and credit requirements. B EST B UILDING S EQUENCE OF O PERATION I NDEX Air Handling System Description and Control ................................................................................ 1 Cold-deck Air Handlers: AHU1 through AHU4 .......................................................................... 1 Fan OFF condition ................................................................................................................... 1 Fan Start-up or Shut-down ....................................................................................................... 1 Return Fan Volume Control ..................................................................................................... 1 Discharge Air Temperature Controls ....................................................................................... 2 Static Pressure Controls ........................................................................................................... 3 Warm-up Control ..................................................................................................................... 3 Night Low Limit ...................................................................................................................... 3 Night purge .............................................................................................................................. 3 Alarms and Safeties ................................................................................................................. 4 Manual smoke pressurization system ...................................................................................... 4 Dedicated Ventilation Air Fans: AHU7 through AHU10 ............................................................. 4 Hot deck air handlers: AHU 5 and AHU 6 .................................................................................. 4 Fan OFF condition: .................................................................................................................. 5 Fan Start-up or Shut-down: ..................................................................................................... 5 Discharge Air Temperature Controls ....................................................................................... 5 Static Pressure Controls ........................................................................................................... 5 Warm-up Control ..................................................................................................................... 6 Night Low Limit ...................................................................................................................... 6 Alarms and Safeties ................................................................................................................. 6 VAV Box Description and Control .................................................................................................. 6 Conference Room VAV Boxes ..................................................................................................... 7 Conference Room is Occupied (during normal building operating hours) ............................. 7 Conference Room is Unoccupied (during normal building operating hours) ......................... 7 Building is Unoccupied ........................................................................................................... 7 Dual Duct VAV Boxes ................................................................................................................. 7 Occupied Condition ................................................................................................................. 7 Ongoing Commissioning Plan Appendix B – Sequence of Operation Sample i
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Unoccupied Conditions ........................................................................................................... 8 Cooling-only VAV Boxes ............................................................................................................. 8 Occupied Condition ................................................................................................................. 8 Unoccupied Conditions ........................................................................................................... 8 Chilled Water System Description and Control ............................................................................... 8 Chillers and Primary / Secondary Pump Control ........................................................................ 8 The EMCS control points for Chillers 1, 2, and 3 ................................................................... 8 Chilled water supply (CHWS) temperature reset .................................................................... 9 Chilled Water System Enable .................................................................................................. 9 Chiller Staging ......................................................................................................................... 9 Primary Chilled Water Pumps ............................................................................................... 10 Secondary Chilled Water Pumps ............................................................................................ 11 Condensing Water and Cooling Tower Control ......................................................................... 12 Cooling Tower Operation ...................................................................................................... 12 Condenser Water Pumps for Chillers ..................................................................................... 13 Condenser Water Pumps for the Heat Exchanger (cooling tower side) ................................. 13 Distribution Water Pumps for the Heat Exchanger (Liebert side) ......................................... 13 Heating Water System Description and Control ............................................................................ 14 General System Control ............................................................................................................. 14 System start-up ...................................................................................................................... 14 System Shutdown .................................................................................................................. 14 Condensing Boiler Control ........................................................................................................ 14 Non-condensing Boiler Control ................................................................................................. 15 Distribution Water Loop Control ............................................................................................... 16 General Control Features ........................................................................................................... 16 Garage Exhaust Fan (EF-1) Control .............................................................................................. 17 General Exhaust Fan Control ......................................................................................................... 17 Lighting Control ............................................................................................................................ 17 Parking Area .......................................................................................................................... 17 General Public and Jury Assembly Areas .............................................................................. 17 Office Spaces ......................................................................................................................... 17 Mechanical Rooms ................................................................................................................ 18 Conference Rooms ................................................................................................................. 18 Fire/Life Safety System Control .................................................................................................... 18 Ongoing Commissioning Plan Appendix B – Sequence of Operation Sample ii
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A IR H ANDLING S YSTEM D ESCRIPTION AND C ONTROL Heating and cooling for the building is provided by dual duct variable air volume (VAV) air handling systems, consisting of the following equipment: AHU1 and AHU2: Cold-deck air handling units serving the B2 through 8th floors AHU3 and AHU4: Cold-deck air handling units serving the 9th through 16th floors AHU5 and AHU6: Hot-deck air handling units serving the B2 through 16th floors AHU7 and AHU8:
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