It said 'will replace any room thermostat' and I can see that it is a simple switch. However, the stat I am replacing (an old mechanical one - marked DELTA) has three live and one neutral. The wiring diagram on the old one shows live and neutral coming in and wired to terminals 1 and 2 respectively. There are then two switch terminals 3 and 4 which are marked 20(4)A and 6(4)A on the diagram but don't show where the connections end up. I assume they are off to the boiler or to a control valve but don't know whcih I should be using for the CM907.
I have a standard pumped CH gravity HW with a timer control for each and want to leave the CH on all the time and control it with the CM907.
Can anyone help?
I have a standard pumped CH gravity HW with a timer control for each and want to leave the CH on all the time and control it with the CM907.
Can anyone help?