Wickes Combi 2000 wireless thermostat connections

[juster]

The two wire programmable thermostat has packed in on my Wickes Combi 2000 combi.

I've purchased a Celect COR908WHB-3-RF/B Wireless thermostat off ebay but I'm unsure which way to wire it up. I've uploaded the diagrams for the combi and the thermostat so any advice would be greatly appreciated.

Wickes combi 2000 connections

• juster
• 29 Aug 2010
• 1

Wireless thermostat connections

• juster
• 29 Aug 2010
• 1

 

[twgas]

what reason did you have for changing from a wired to a wireless thermostat? using another 2 wire stat would be a lot easier

 

[juster]

I've had three wired thermostats pack in over the last few years so thought I'd try a wireless one as I got it cheap.

 

[twgas]

have you had the same fault occur on all the stats?

 

[Whitespirit66]

I've had three wired thermostats pack in over the last few years so thought I'd try a wireless one as I got it cheap.

Next time, buy a proper one, with a brand that someone has heard of, eg Honeywell, Drayton. Cheaper in the long run.

P.S. connect terminals 3 and 4 on the stat to the 2 terminals on the boiler that were connected to your old stat.

 

[juster]

Cheers mate last two were Drayton's

Is that terminals 3 and 4 for volt free operation or terminal 3 (live) and terminal 4 (heat on) where terminals 2 and 3 are linked?

Cheers.

 

[juster]

have you had the same fault occur on all the stats?

Yes mate just died - no display, replaced the batteries -no joy then replaced the stats and everything back to normal.

 

[twgas]

did you replace the batteries?
I replace very few room 'stats, they are, generally, very reliable.

 

[juster]

did you replace the batteries?
I replace very few room 'stats, they are, generally, very reliable.

Yes mate just edited my post to highlight this.

 

[PEDANTICVINDICTIVEMAN]

So does the boiler SWL require 240 volts or is it low voltage off the PCB switching ? need to see more of the boilers wiring details ?

 

[juster]

So does the boiler SWL require 240 volts or is it low voltage off the PCB switching ? need to see more of the boilers wiring details ?

Additional wiring diagrams attached.

Untitled

• juster
• 29 Aug 2010
• 2

Untitled

• juster
• 29 Aug 2010
• 1

Hopefully they will be of use.

 

[twgas]

they look, to me, to be the boiler internal wiring.
We need to know whether the room stat has to be mains or "volts free."

 

[juster]

they look, to me, to be the boiler internal wiring.
We need to know whether the room stat has to be mains or "volts free."

Second pic on first post mate is the thermostat wiring but I've attached it again. Cheers

Wireless thermostat connections

• juster
• 29 Aug 2010
• 1

 

[PEDANTICVINDICTIVEMAN]

Still not seeing the boilers wiring installation instructions, are there any warnings regarding connecting the room stat, ie, DONT CONNECT TO 240 VOLTS written anywhere, any instructions showing where the room stat wires connects to ?

 

[twgas]

you don't appear to understand.
the 'stat is suitable for both, the boiler instruction will explain whether it should be wired for 240v or not, although the wording may not make it obvious to all.