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CS-2009 EAp2:Minimum Energy Performance

chiller reference values for energy modeling and compliance form

I am working on a project which is equipped with air-cooled chillers. According to ASHRAE 90.1-2007, Appendix G, table G3.1.3.7. I was required to use water-cooled chiller in the referece energy model. Now, I am filling in ASHRAE compliance forms and I am not sure if I should compare the proposed chiller (and its efficiency) with air-cooled chiller or if I should compare it with the minimum efficiency of water-cooled chiller as it was done in energy modeling.

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

Wed, 08/08/2012 - 13:28

In the compliance form the Appendix G baseline is not used at all. Compare your chiller to the same sized air-cooled chiller in the HVAC compliance form.

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