.Buildings.DHC.Plants.Combined.Subsystems.HeatPumpGroup .Buildings.DHC.Plants.Combined.Subsystems.HeatPumpGroupThis model represents a set of identical air-to-water heat pumps that are piped in parallel. Dedicated constant-speed condenser pumps are included.
The following input and output points are available.
y1:
DO signal dedicated to each unit, with a dimensionality of one
TSet:
AO signal common to all units, with a dimensionality of zero
TConWatSup:
AI signal common to all units, with a dimensionality of zero
In a parallel arrangement, all operating units have the same operating point. This allows modeling the heat transfer from outdoor air to condenser water with a single instance of Buildings.Fluid.HeatPumps.EquationFitReversible. Hydronics are resolved with mass flow rate multiplier components.
The model Buildings.Fluid.HeatPumps.EquationFitReversible does not capture the sensitivity of the heat pump performance to the HW supply temperature setpoint. This means that a varying HW supply temperature setpoint has no impact on the heat pump COP (all other variables such as the HW return temperature being kept invariant). This is a limitation of the model.
| Name | Description |
|---|---|
 MediumAir | Air medium |