Hello, I am trying to customize Heat pump operation using EMS codes. I am using one of the .idf files available for residential dwellings sourced from https://www.energycodes.gov/prototype-building-models. AirLoopHVAC:UnitaryHeatPump:AirToAir object is used for modeling the HP with separate objects for heating (Coil:Heating:DX:SingleSpeed) and cooling (Coil:Cooling:DX:SingleSpeed). My EMS codes involve limiting the heat pump heating capacity based on the cooling capacity and this requires the EMS actuator to scale down the auto-sized heating capacity by some factors (heating demand is higher by default due to outdoor climate). Unfortunately, the EDD file contains an actuator for the autosized capacity for the Cooling:DX:SingleSpeed (EnergyManagementSystem:Actuator Available,DX COOLING COIL_UNIT1,Coil:Cooling:DX:SingleSpeed,Autosized Rated Total Cooling Capacity,[W]), but there are no actuators for the Heating:DX:SingleSpeed. The EDD file only mentions following EMS Actuators available for this object:
EnergyManagementSystem:Actuator Available,MAIN DX HEATING COIL_UNIT1,Coil:Heating:DX:SingleSpeed,Frost Heating Capacity Multiplier,[] EnergyManagementSystem:Actuator Available,MAIN DX HEATING COIL_UNIT1,Coil:Heating:DX:SingleSpeed,Frost Heating Input Power Multiplier,[]
Does anybody know why this is happening? TIA!
