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Plumberpro, Plumber
Category: Home Improvement
Satisfied Customers: 634
Experience:  Fully qualified plumbing , heating and gas engineer 20 years experience
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I have a Vaillant eco-tec boiler and want to replace the existing

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I have a Vaillant eco-tec boiler and want to replace the existing Honeywell T6360 dial thermostat with a Polypipe PBPRP programmable low voltage ( it has internal batteries ) thermostat. Assuming that the existing thermostat is wired to the low voltage terminal at the boiler end am I right to think that I can simply wire in these live and neutral feeds to the two terminals on the new thermostat
Plumberpro :

Hi . you may have to check the boiler. I think the vailants have a wiring junction for low voltage and high . make sure the 240 room stat is not wired


I had already worked that out for myself-I just didn't want to poke about in the boiler electronics.


However I have just done that, and can confirm that the existing stat appears to be wired to a white terminal block labelled RT 24, which is described as the 24 v DC room thermostat in the installation instruction booklet. The only other wiring is for the main supply. Presumably I could also put a timer control between the FCU and the boiler?

Plumberpro :

Yes , sure you can put a timer in between , no probs .so yes you can simply wire in the wires into bthe new thermostat

Plumberpro :

Hi . could you please rate your answer , thanks

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