Wiring Sunvic wireless thermostat TLX RFP to Worcester Combi

7 Nov 2007
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United Kingdom

I would be grateful for some help.

My Worcester 240 Combi RSF has room thermostat connections 1,2 and 3 on terminal X4 of the main driver board. It is quite clear that terminal 3 is neutral in the MI.

Therefore I presume I connect the Sunvic TLX RFP wireless receiver as follows:-

Boiler TLX RFP reciever
1 Output (Call for Heat)
2 Live
3 Neutral

.... and take out the wired link between 1 and 2. terminal 1 is the normal open circuit.

Is this correct?

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I have a similar situation. I would have thought that you would have wired your boiler's terminals 1 & 2 to live and call on the TLX RFP and neutral to the boiler's terminal 3. Is this what you did? did it work? I am planning to do the same.


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