Hi @cam_lawrence, this is a very good question and I don’t find anything on E+ input and output reference documents.
However, I do find one set of data from the E+ GitHub issues that they used for debugging the system. I don’t know the source of this set of data, but at least you could have it a try and please let me know if they work better than the default one.
Curves for HeatPump:PlantLoop:EIR:Cooling
HeatPump:PlantLoop:EIR:Cooling,
CoolSys1 Chiller 3, !- Name
CoolSys1 Chiller 3 Inlet Node, !- Load Side Inlet Node Name
CoolSys1 Supply Equipment Outlet Node 3, !- Load Side Outlet Node Name
AirSource, !- Condenser Type
CoolSys1 OA Node, !- Source Side Inlet Node Name
Outdoor Air Outlet Node, !- Source Side Outlet Node Name
HeatSys1 Boiler 3, !- Companion Heating Heat Pump Name
0.009, !- Load Side Design Volume Flow Rate {m3/s}
autosize, !- Source Side Design Volume Flow Rate {m3/s}
autosize, !- Reference Capacity
5.69, !- Reference COP
, !- Sizing Factor
NXNCoolingCapCurveFuncOAT, !- Heating Capacity Modifier Function of Temperature Curve Name
NXN_CoolingEIRCurveFuncOAT, !- Electric Input to Heating Output Ratio Modifier Function of Temperature Curve Name
NXN_PLE_EIR; !- Electric Input to Heating Output Ratio Modifier Function of Part Load Ratio Curve Name
Curve:Biquadratic,
NXNCoolingCapCurveFuncOAT, !- Name
1.00948584, !- Coefficient1 Constant
0, !- Coefficient2 x
0, !- Coefficient3 x**2
0.0008283469, !- Coefficient4 y
-.0001729685, !- Coefficient5 y**2
0, !- Coefficient6 x*y
5, !- Minimum Value of x
10, !- Maximum Value of x
-10, !- Minimum Value of y
35, !- Maximum Value of y
, !- Minimum Curve Output
, !- Maximum Curve Output
Temperature, !- Input Unit Type for X
Temperature, !- Input Unit Type for Y
Dimensionless; !- Output Unit Type
Curve:Biquadratic,
NXN_CoolingEIRCurveFuncOAT, !- Name
1.004117645, !- Coefficient1 Constant
0, !- Coefficient2 x
0, !- Coefficient3 x**2
0.000014692700, !- Coefficient4 y
0.000639026, !- Coefficient5 y**2
0, !- Coefficient6 x*y
5, !- Minimum Value of x
10, !- Maximum Value of x
-10, !- Minimum Value of y
35, !- Maximum Value of y
, !- Minimum Curve Output
, !- Maximum Curve Output
Temperature, !- Input Unit Type for X
Temperature, !- Input Unit Type for Y
Dimensionless; !- Output Unit Type
Curve:Quadratic,
NXN_PLE_EIR, !- Name
1, !- Coefficient1 Constant
-.4647, !- Coefficient2 x
0.4747, !- Coefficient3 x**2
0.1000000000, !- Minimum Value of x
1.0000000000; !- Maximum Value of x
Curves for HeatPump:PlantLoop:EIR:Heating
HeatPump:PlantLoop:EIR:Heating,
HeatSys1 Boiler 3, !- Name
HeatSys1 Boiler 3 Inlet Node, !- Load Side Inlet Node Name
HeatSys1 Supply Equipment Outlet Node 3, !- Load Side Outlet Node Name
AirSource, !- Condenser Type
HeatSys1 OA Node 3, !- Source Side Inlet Node Name
Outdoor Air Outlet Node, !- Source Side Outlet Node Name
CoolSys1 Chiller 3, !- Companion Cooling HP/Chiller Name
0.009, !- Load Side Design Volume Flow Rate {m3/s}
autosize, !- Source Side Design Volume Flow Rate {m3/s}
autosize, !- Reference Capacity
4.04, !- Reference COP
, !- Sizing Factor
NXNHeatingCapCurveFuncOAT, !- Capacity Modifier Function of Temperature Curve Name
NXN_HeatingEIRCurveFuncOAT, !- Electric Input to Output Ratio Modifier Function of Temperature Curve Name
NXN_Heating_PLE_EIR; !- Electric Input to Output Ratio Modifier Function of Part Load Ratio Curve Name
Curve:Biquadratic,
NXNHeatingCapCurveFuncOAT, !- Name
0.6319215, !- Coefficient1 Constant
0, !- Coefficient2 x
0, !- Coefficient3 x**2
0.0180329193, !- Coefficient4 y
-.0000642932, !- Coefficient5 y**2
0, !- Coefficient6 x*y
5, !- Minimum Value of x
10, !- Maximum Value of x
-7, !- Minimum Value of y
25, !- Maximum Value of y
, !- Minimum Curve Output
, !- Maximum Curve Output
Temperature, !- Input Unit Type for X
Temperature, !- Input Unit Type for Y
Dimensionless; !- Output Unit Type
Curve:Biquadratic,
NXN_HeatingEIRCurveFuncOAT, !- Name
1.5511339108, !- Coefficient1 Constant
0, !- Coefficient2 x
0, !- Coefficient3 x**2
-.034244722, !- Coefficient4 y
0.000486975, !- Coefficient5 y**2
0, !- Coefficient6 x*y
5, !- Minimum Value of x
10, !- Maximum Value of x
-7, !- Minimum Value of y
25, !- Maximum Value of y
, !- Minimum Curve Output
, !- Maximum Curve Output
Temperature, !- Input Unit Type for X
Temperature, !- Input Unit Type for Y
Dimensionless; !- Output Unit Type
Curve:Quadratic,
NXN_Heating_PLE_EIR, !- Name
1.1575, !- Coefficient1 Constant
-.3679, !- Coefficient2 x
0.2147, !- Coefficient3 x**2
0.1000000000, !- Minimum Value of x
1.0000000000; !- Maximum Value of x