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NC-2009 EAc1:Optimize Energy Performance

Room exhaust fan energy process or not?

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Haojie Wang
Energy Modeler
KJWW Engineering
LEEDuser Basic Member
3 thumbs up

I remember seeing from somewhere that if the exhaust fan is not interlocked with the HVAC, it should be considered a process load and modeled the same in proposed and baseline. Could someone point me the source of this or if this is applicable to EAp2. Thanks

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 03/24/2015 - 16:04

I don't think there is anything to point to on this issue. A fan is process if it is not directly regulated by 90.1. So I can't point you to something that does not exist. Fans serving unconditioned spaces are process. Fans associated with HVAC systems are not process. An exhaust fan within a conditioned space that is not interlocked with the HVAC is process too.
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Haojie Wang
Energy Modeler
KJWW Engineering
LEEDuser Basic Member
3 thumbs up

Tue, 03/24/2015 - 17:32

Thanks for the confirmation

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