Honeywell CM67 with Potterton Gold 24 combi boiler

12 Oct 2005
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United Kingdom
I've just had a Potterton Gold 24 boiler fitted, and I've purchased a Honeywell CM67 wireless thermostat to use with it.
The fitter has said he can't use it as the Gold 24 has a built in clock and this thermostat is a controller not just a thermostat.
He says he has phoned Potterton and they have said the same to him.

I find this a little strange, because as I see it (and I'm probably wrong) the thermostat sends a signal to fire the boiler to heat the radiators, so if the clock on the boiler was set to 'on' and not timed, it would only fire when signalled by the thermostat, which in turn would only send the signal when timed to do so.

In the install guide for the boiler it says "If the thermostat has an anticipator it must be wired as fig 29" Is the anticipator the same as optimizer or something else.

Sorry if this is clear as mud
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set boiler timer to constant ...connect rf stat internally on pcb [see diagram]...........use new stat as you would conventional stat

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