Betacom 24 and wiring in a wireless stat
Discussion
Current boiler has no stat of any kind. I've got a honeywell wireless stat to fit but I'm not sure what the connections are in the pcb. The boiler was put in around 2007 . I think the connections are either 3,4,5 . But there is already something in these going to the pcb. Or it could in place of a small length of cable that is the marked room thermostat that was coiled up behind the pcb. Can put a pic up if needed. I'm hoping someone can help as I'm slightly baffled by these connections.
There are a number of different beta com models so the Gc no would help. from memory there is either a 24v low voltage connection on the left hand side of the pcb housing. If you are using a 230 VAC room thermostat then you need to cut the link on thermostat connection and fit a terminal block to it, just googled it and the model I'm looking at says its terminal x20 for 230VAC connection
cheers
ss
It's a honeywell cmt927 I've got . There is a timer on the left hand side of the board that's mains powered. Is the room thermostat cable just that , a short and it turns the heating on ? If so I take it I can connect to that and in effect the the wireless stat takes places of the what's there now. My concern has been getting the right voltages and could have a go but I'd rather not pop a pcb.
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