How to add a thermostat to Danfoss CP715

[Jamest]

Hi

Got a Danfoss CP715 that needs replacing (the buttons are getting harder to push), and the simplest method seems to be to replace it with the newer version of the same. I don't have a room thermostat at present so would like to add one, which everyone seems to say is an easy exercise, but I cannot find instructions on how to do so.

Thermostat I am looking at is the RMT230, so any help gratefully achieved.

Alternatively if anyone can recomend an alternative, ideally a wireless thermostat set up would be great.

Thanks.

 

[londonboy]

If you can take the timer off the backplate and tell me what colour wires are where I'll tell you how to wire the wireless stat in

 

[Jamest]

Great, thanks.

I had a look at the back of it this morning and know there are 4 wires, I'll let you know the colours/positions this pm when I get back.

Cheers

 

[WDIK]

just interupt the switched live, thats the two furthest right with a room stat

 

[Jamest]

Wiring on the wall is

blue- brown - gap - gap - red - black

 

[Jamest]

Bump.

 

[D_Hailsham]

Instead of installing a new CP715 and a separate thermostat, why not install a programmable wireless stat, e.g TP5000RF or TP7000RF.

You would need a separate timer for the hot water (assuming you don't have a combi boiler). You could either retain the existing CP715 for this or install a cheap 24 hour clock - but make sure it has an override or boost button; water has a habit of going cold at the wrong time.

 

[londonboy]

Sorry have only just seen you have replied.

Run a 5 core cable between the programmer and wireless stat receiver (fit it next to the programmer for ease).

Blue - neutral
Brown - live
You need to switch this black wire, so run a wire from terminal '4' to the common on the wireless stat receiver.
Run another wire from 'on' connection and join it onto the black wire using a connector block.

And take an earth wire to the wireless stat reciver.