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Installing a honeywell CM900 wireless programmable thermostat

We have a an old honeywell analogue thermostat installed with our central heating system. Do we install the CM900 receiver unit directly inplace of the old unit?

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Re: installing a honeywell CM900 wireless programmable...

The analog unit uses just two wires for heat. red - white. there is a heat anticipator setting that must match the burner current. check your programmable specs and follow instructions.

Posted on Dec 07, 2007

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