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# Revision history [back]

HeatPump:PlantLoop:EIR:Heating is a new object and unfortunately autosizing does not work for the Load Side Reference Flow Rate or Reference Capacity fields. Fortunately, you have developed the same model but served by a boiler, so you can simply use the sizing capacity and flow rate from that model and input those hard sizes into your heat pump model.

So change this object to:

HeatPump:PlantLoop:EIR:Heating,
Heat Pump Boiler,        !- Name
Boiler Inlet Node,       !- Load Side Inlet Node Name
Boiler Outlet Node,      !- Load Side Outlet Node Name
AirSource,               !- Condenser Type
Heat Pump Boiler Air Inlet Node,  !- Source Side Inlet Node Name
Heat Pump Boiler Air Outlet Node,  !- Source Side Outlet Node Name
,                        !- Companion Heat Pump Name
0.0255,                !- Load Side Reference Flow Rate {m3/s}
autosize,                       !- Source Side Reference Flow Rate {m3/s}
757742,                !- Reference Capacity {W}
3.122627907,             !- Reference Coefficient of Performance {W/W}
,                        !- Sizing Factor
HPBoilerCapCurveFuncTemp,!- Capacity Modifier Function of Temperature Curve Name
HPBoilerEIRCurveFuncTemp,!- Electric Input to Output Ratio Modifier Function of Temperature
HPBoilerEIRCurveFuncPLR; !- Electric Input to Output Ratio Modifier Function of PLR


We are working towards fixing this bug so hopefully it will not be an issue by the next release.

• natural gas boiler.idf: actually uses HeatPump:PlantLoop:EIR:Heating with real curves

• air to water heat pump boiler with real curves.idf: actually uses Boiler:HotWater

• air to water heat pump boiler with 1 curves: this is labeled correctly

HeatPump:PlantLoop:EIR:Heating is a new object and unfortunately autosizing does not work for the Load Side Reference Flow Rate or Reference Capacity fields. Fortunately, you have developed the same model but served by a boiler, so you can simply use the sizing capacity and flow rate from that model and input those hard sizes into your heat pump model.

So change this object to:

HeatPump:PlantLoop:EIR:Heating,
Heat Pump Boiler,        !- Name
Boiler Inlet Node,       !- Load Side Inlet Node Name
Boiler Outlet Node,      !- Load Side Outlet Node Name
AirSource,               !- Condenser Type
Heat Pump Boiler Air Inlet Node,  !- Source Side Inlet Node Name
Heat Pump Boiler Air Outlet Node,  !- Source Side Outlet Node Name
,                        !- Companion Heat Pump Name
0.0255,                !- Load Side Reference Flow Rate {m3/s}
autosize,                       !- Source Side Reference Flow Rate {m3/s}
757742,                !- Reference Capacity {W}
3.122627907,             !- Reference Coefficient of Performance {W/W}
,                        !- Sizing Factor
HPBoilerCapCurveFuncTemp,!- Capacity Modifier Function of Temperature Curve Name
HPBoilerEIRCurveFuncTemp,!- Electric Input to Output Ratio Modifier Function of Temperature
Temp
HPBoilerEIRCurveFuncPLR; !- Electric Input to Output Ratio Modifier Function of PLR


We are working towards fixing this bug so hopefully it will not be an issue by the next release.