I am looking for a new CH programmer to replace the existing one. There are a couple of things I dont quite understand.
1) whats the difference between a common timebase and an independent timebase? (Danfoss CP715 vs FP715)
2) Does the gravity / pumped selector simply mean can the heating run without the hot water or not?
Background:
I want to replace my mechanical single channel timeswitch. My system has one pump and one inline valve. The pump is controller by the boiler and runs for both central heating and hot water only modes. The valve operates when the room thermostat tells it to. We use this to disable the heating during the summer.
1) whats the difference between a common timebase and an independent timebase? (Danfoss CP715 vs FP715)
2) Does the gravity / pumped selector simply mean can the heating run without the hot water or not?
Background:
I want to replace my mechanical single channel timeswitch. My system has one pump and one inline valve. The pump is controller by the boiler and runs for both central heating and hot water only modes. The valve operates when the room thermostat tells it to. We use this to disable the heating during the summer.