Hello,
I have a CM707 wired thermostat that we want to change to a CM727 wireless thermostat.
Trouble is that the relay seems to want 4 wires and not the two you can see in the picture of our current install.
According to page 3 of the Honeywell manual (http://www.honeywelluk.com/Documents/Installation-Guide/pdf/1066.pdf) "Zone Valve" I can join the second "L" to "A" but I only have the one neutral return.
Can I simply use some chock block to joint the neutral or will this cause issues?
I have a CM707 wired thermostat that we want to change to a CM727 wireless thermostat.
Trouble is that the relay seems to want 4 wires and not the two you can see in the picture of our current install.
According to page 3 of the Honeywell manual (http://www.honeywelluk.com/Documents/Installation-Guide/pdf/1066.pdf) "Zone Valve" I can join the second "L" to "A" but I only have the one neutral return.
Can I simply use some chock block to joint the neutral or will this cause issues?