Question-and-Answer Resource for the Building Energy Modeling Community
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Hi, you say these systems are similar to distributed heat pumps? It may be worth trying to model them that way and test if they behave they way you want? There are objects "Coil:Cooling:WaterToAirHeatPump:*" which EnergyPlus uses when you use HVACTemplate:Zone:WaterToAirHeatPump. You can specify a supplementary heating coil that is hydronic and disable the heating side of the heat pump (two separate coils are always created, one for heating and one for cooling). I have done this in the past for what I have heard refered to as hybrid heat pumps.. These WaterToAirHeatPumps use a common condenser loop with boiler and chiller, similar your described system.
