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If pursuing Option 2, what is the scope of the energy model if the space shares a central plant, and what type of software should be used?

For Option 1, Zoning and Controls, is a thermostat considered an “active control capable of sensing space demand"?

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CI-2009 EAc1.3:Optimize Energy Performance—HVAC

Constant Volume RTUs and Energy Star Label

I am not clear from CPG whether VAV is required for Option1 (Equipment Efficiency - 5 points). I have Constant Volume RTUs serving the tenant space. All of them have supply fan less than 5 HP. Can this qualify under option1? Also latest CPG states that "Packaged unitary equipment shall meet the minimum efficiency requirements in table 2.9.1 and 2.9.2 and be Energy Star labeled." I used to think that either the packaged system has to qualify the above tables or Energy Star but not both. Any views will be appreciated.

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Mon, 02/03/2014 - 13:49

I am looking for forum's responses quickly. Your views will be appreciated.
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
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Mon, 02/17/2014 - 17:13

Free and fast, pick one. :-) As long as your fan motors are less than 5 HP they do not need to comply so you should be fine under option 1. The previous version of CPG also says "and". For an international project I would think that if you can demonstrate that it meets the efficiency requirement it would not necessarily have to also be ES labeled.

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