Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
what you are describing can be controlled at the plant loop level. You would want to set the load distribution scheme to sequential load. This will load the heat pump and then the supplemental boiler sequentially in the order specifed in the PlantEquipmentList (the priority). If you have the HeatPump as priority 1 and the boiler as priority 2, then the boiler should come on to pick up the load as the heat pump loses capacity and then shuts off. I have found this works best when the heat pump and boiler are connected in series in the plant loop.
| | 2 | No.2 Revision |
what you are describing can be controlled at the plant loop level. You would want to set Set the load distribution scheme to sequential load. This will load the heat pump and then the supplemental boiler sequentially in the order specifed specified in the PlantEquipmentList (the priority).
If you have the HeatPump as priority 1 and the boiler as priority 2, then the boiler should come on to pick up the load as the heat pump loses capacity and then shuts off.
I have found this works best when the heat pump and boiler are connected in series in the plant loop.
