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RE: [EnergyPlus_Support] Re: Sizing according to ASHRAE 90.1





Jean,

If the heating setpoint is 20 and cooling setpoint is 26, the air delivered to the zone should be:

20 + 11.1 = 31.1 (maximum) for heating needs

26 - 11.1  = 14.9 (minimum) for cooling needs.

These values are set in the Sizing:System, Central cooling design supply air temperature = 14.9

And Sizing:Zone, Zone heating design supply air temperature = 31.1

 

James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653

 

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