Honeywell st9400c to Drayto Wiser

Gritty · Monday at 1:31 PM

Hi. I have a Honeywell programmer with remote CH thermostat (oil boiler and hot water cylinder). I want to replace with a Drayton wiser 2 kit. The wiring is shown in photo. Do I need to change it?

CountryFan · Monday at 8:21 PM

Gritty said:
The wiring is shown in photo. Do I need to change it? It’s

If it’s an industry standard backplate and Drayton will be then clip it on. If it’s not, then you’ll need to transfer them over, should be straightforward enough.

Gritty · Monday at 8:24 PM

Thanks. It will clip on to the backplate but I'm not sure the current wiring is correct for the new programmer.

CountryFan · Monday at 8:27 PM

Gritty said:
I'm not sure the current wiring is correct for the new programmer.

It looks the same to me apart from maybe the earth/cpc

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Honeywell st9400c to Drayto Wiser

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