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C403.4.2.3.2.1 Climate Zones 3 and 4
Energy Conservation Code 2015 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Hydronic and Multiple-Zone HVAC Systems Controls and Equipment. (Prescriptive) > C403.4.2 Hydronic Systems Controls > C403.4.2.3 Hydronic (Water Loop) Heat Pump Systems > C403.4.2.3.2 Heat Rejection > C403.4.2.3.2.1 Climate Zones 3 and 4
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For Climate Zones 3 and 4:
- Where a closed-circuit cooling tower is used directly in the heat pump loop, either an automatic valve shall be installed to bypass all but a minimal flow of water around the tower, or lower leakage positive closure dampers shall be provided.
- Where an open-circuit tower is used directly in the heat pump loop, an automatic valve shall be installed to bypass all heat pump water flow around the tower.
- Where an open- or closed-circuit cooling tower is used in conjunction with a separate heat exchanger to isolate the cooling tower from the heat pump loop, then heat loss shall be controlled by shutting down the circulation pump on the cooling tower loop.
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For Climate Zones 3 and 4: Where a closed-circuit cooling tower is used directly in the heat pump loop, either an automatic valve shall ...
Energy Conservation Code 2015 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Hydronic and Multiple-Zone HVAC Systems Controls and Equipment. (Prescriptive) > C403.4.2 Hydronic Systems Controls > C403.4.2.3 Hydronic (Water Loop) Heat Pump Systems > C403.4.2.3.2 Heat Rejection > C403.4.2.3.2.1 Climate Zones 3 and 4
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