Fitting wireless thermostat

[LordFrederickIII]

Hi,

I currently have a wired thermostat which I'd like to replace with a wireless one.

Do I simply swap the new receiver with the existing thermostat?

The one I'm thinking of getting is this:

https://www.amazon.co.uk/dp/B07HQD71YB/ref=cm_sw_r_apan_glt_fabc_C2EE4BQ8BHX3QZNZEWBE

Thanks

 

[Pete W]

Depends if you have a Neutral at the thermostat. If only 2 wires then not possible.

 

[LordFrederickIII]

Depends if you have a Neutral at the thermostat. If only 2 wires then not possible.

I'm pretty sure it does have neutral. I'll double check

 

[Deleted member 267285]

What existing thermostat do you have? What setup is it, eg Combi boiler, s-plan or y plan etc?

 

[LordFrederickIII]

What existing thermostat do you have? What setup is it, eg Combi boiler, s-plan or y plan etc?

I currently have a Salus ST620
I think it's a S-plan. System boiler and unvented cylinder

I've checked the wires at the existing thermostat and i have live, switched live and neutral.

 

[Deleted member 267285]

Providing the live and neutral are permanent, then it should work by putting the receiver there. Salus do have a mixed view reputation though.

 

[LordFrederickIII]

I've had a look at the wiring for the new thermostat.

Currently my wiring is:

Red - live
Blue - neutral
Yellow - switched

On the attached wiring diagram, does this translate to

L - red
N - blue
COM - yellow

Is that right?

 

[Johnmdc]

Red and blue are right but yellow goes to NO and you need to put a link between L and C.