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[EnergyPlus_Support] Split-air conditioning system



Hi,

I am trying to set up a split-air conditioning system (DX single speed cooling, DX single speed heating and Air-to-air Heat pump). The size of the system is autosized. I have also set up gas heating as the supplemental heating. In reality some split systems don't have supplemental heating. I have tried to "turn off" this function by input the "Maximum Outdoor Dry-Bulb Temperature for Supplemental Heating" (under AirLoopHVAC:UnitaryHeatPump:AirToAir)to -10 degree. The gas heating consumption drop to zero but the "Time Set Point Not Met During Occupied Heating" increase from 50 to 230 hours which would be unacceptable. Could anyone give me some advice on how to disable the supplemental heating? 

Thank you very much.

Regards.




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