I have a zwave thermostat (2gig ct100) and I want to connect it to a Vaillant heater. There are 7,8,9 numbered contacts on the heater. 9 is neutral (N). Between 8 and 9 there is 24V and between 7 and 9 there is 21-22V
How should I connect the C, RH and W wires of the thermostat ?
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