Converting to wireless stat

[leeus]

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.

Untitled

• leeus
• 6 Oct 2013
• 1

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?

 

[EFLImpudence]

Where is the location of the picture?

The wired part of the new thermostat should be fitted near the boiler or wiring centre.



The battery run sender unit can be placed anywhere you want.

The black is not neutral.

 

[ianmcd]

Im afraid you havent got a clue what you are trying to do, the "Relay" as you call it is the receiver and has to be wired to your boiler not the wires in your pic the new stat does not need any wires it is a wireless thermostat and sends a wireless signal to the receiver unit