Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
So I've tried multiple ways and wrote down the simulation times for each.
Without this AirLoopHVAC => 8min50s
With the AirLoopHVAC, single Unitary => 1h35min
Everything wrapped into a single AirLoopHVAC:Unitary System set control type Load.
With the AirLoopHVAC, separate unitary for each coil => 9min 04s
The Coil:Cooling:WaterToAirHeatPumpEquationFit andCoil:Heating:WaterToAirHeatPumpEquationFit wrapped into seperate AirLoopHVAC:Unitary System set control type Setpoint and a SPM placed directly on the outlet: 9min 04s**
It seems that using the UnitarySystem as a simple wrapper for each coil is much more computationally interesting. I really wonder why it isn't possible to just place these WaterToAir coils directly on the AirLoopHVAC... Maybe a user-voice request is in order, unless we're missing something here?
