Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
For the water-to-air heat pump, you need to use coils of the type WaterToAirHeatPump.
Depending on your project, you need to use:
These coils can live in a ZoneHVAC:WaterToAirHeatPump or in a AirLoopHVAC:UnitarySystem. The documentation is pretty obscure about this fact, but this question - Using Coil:Cooling:WaterToAirHeatPump:EquationFit - confirms that fact.
So in you case, you need to use the AirLoopHVAC:UnitarySystem, and place that on your DOAS AirLoopHVAC loop. The UnitarySystem is a bit weird in the sense that you can choose or not to package the fan in there or not... In OpenStudio, you might get into a problem if you put everything (cooling coil, heating coil, fan) in the same unitary system because you won't be able, without an E+ measure, to add the required setpoint manager on the outlet of each coil. See these two questions for more information:
| | 2 | No.2 Revision |
For the water-to-air heat pump, you need to use coils of the type WaterToAirHeatPump.
Depending on your project, you need to use:
These coils can live in a ZoneHVAC:WaterToAirHeatPump or in a AirLoopHVAC:UnitarySystem. The documentation is pretty obscure about this fact, but this question - Using Coil:Cooling:WaterToAirHeatPump:EquationFit - confirms that fact.
So in you your case, you need to use the AirLoopHVAC:UnitarySystem, and place that on your DOAS AirLoopHVAC loop. The UnitarySystem is a bit weird in the sense that you can choose or not to package the fan in there or not... not...
In OpenStudio, you might get into a problem if you put everything (cooling coil, heating coil, fan) in the same unitary system because you won't be able, without an E+ measure, to add the required setpoint manager on the outlet of each coil. See these two questions for more information:
