Hi, I'm installing a new wireless Honeywell CM921 thermostat. Its replacing a 20 year old mechanical thermostat, I'm putting the receiver where the mechanical thermostat is/was.
Now, I believe I have to link the live to terminal A in the receiver, I'm following the direct control diagram on the MIs, but what type of wire do I have to use for the link?
Now, I believe I have to link the live to terminal A in the receiver, I'm following the direct control diagram on the MIs, but what type of wire do I have to use for the link?