Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I realize this is an old post, but I have issues when autosizing ZoneHVAC:PackagedTerminalHeatPump) and ZoneHVAC:WaterToAirHeatPump.
I often make this comparison and found that the PTHP is autosized as expected while the ZoneHVAC:WaterToAirHeatPump is significantly oversized.
Further, when hard sizing the ZoneHVAC:WaterToAirHeatPump, the coil peak maximum cooling rate never reaches capacity, only about 50%.
I use DesignBuilder which is still using E+ v9.4.
Any comments for others would be appreciated.
| | 2 | No.2 Revision |
I realize this is an old post, but I have issues when autosizing ZoneHVAC:PackagedTerminalHeatPump) and ZoneHVAC:WaterToAirHeatPump.
I often make this comparison and found that the PTHP is autosized as expected while the ZoneHVAC:WaterToAirHeatPump is significantly oversized.
Further, when hard sizing the ZoneHVAC:WaterToAirHeatPump, the coil peak maximum cooling rate never reaches capacity, only about 50%.
I use DesignBuilder which is still using E+ v9.4.
Any comments for from others would be appreciated. appreciated.
