Joe123
New Member
- Messages
- 4
- Reaction score
- 0
- Points
- 1
I installed an Alpine 105 boiler for my new staple-up hodronic system. The boiler has three pumps, boiler, system and DHW. The system and DHW pumps are connected to the Caleffi relay box. The boiler pump is connected to the boiler. With the boiler configured for Central Heat - Optional Priority the boiler pump should not run when there is a priority call for DHW. However, both the boiler and DHW pumps run at the same time when there is a priority call. Since I have different set points for my heat and DHW, this could cause some issues, but I also think that I'm getting some back pressure from the boiler pump, which is reducing the flow for the DHW piping.
I hope this makes sense. Does anyone know why the boiler pump would be running in this configuration? Any way to make it not run when there is a call for DHW? Thanks in advance.
Joe
I hope this makes sense. Does anyone know why the boiler pump would be running in this configuration? Any way to make it not run when there is a call for DHW? Thanks in advance.
Joe