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Changing a room thermostat a potterton to honeywell t6360

I want to change my old thermostat from potterton to honeywell which wires go where on the new honeywell - red blue and yellow

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Re: changing a room thermostat a potterton to honeywell...

I think I've done it - but don't take this as absolute truth.
For the Honeywell T6360B the original Potterton wiring should be rewired as follows:
Brown [Live] goes to terminal 1; Blue [neutral] goes to Terminal 2 and the yellow/green [which is not an earth but a switched live - i.e. gives live to the heating system when the thermostat clicks in] goes to terminal 3.
Obviously all done with the power isolated and when it was switched back on we had heating again :o)
It's been on over two hours now and all seems fine.

Posted on Feb 16, 2008

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