Our semi industrial building's production area does not have cooling system, Proposed model simulated based on ASHRAE 90.1-2007, Table G3.1, 10. HVAC No. d “Where system exists or no cooling system has been specified the cooling system shall be identical to the system modeled in the baseline building design”. Thus, proposed model simulated with same baseline efficiency, capacity as well as Fan power. Regarding of Proposed model heating system, it has actual equipment and associated efficiency, capacity and Fan Power. The Fan power from Cooling (based on baseline model) and the Fan power from Heating (Actual HVAC Equipment) conflict each other and I used Fan Power from Cooling (based on baseline model) since Cooling requires higher air flow rate. One of review comment is “ match the Fan Power with actual HVAC schedule” . If I match the fan power based on actual HVAC schedule, proposed Cooling system is not identical system to baseline cooling system and it would increase fan power energy saving. If I do either way, It does not meet requirement of ASHRAE 90.1-2007, Table G3.1, 10. HVAC No. a or d. What would be the solution for this?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5906 thumbs up
May 20, 2011 - 1:44 am
The workaround to having to install a cooling system where one does not exist is typically is to set the temperatures in the space so high that is never comes on. As long as the setting are the same in both models you will be in compliance with Appendix G.