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Mend Honeywell CM900 Thermostat Combi Wireless

fitting honeywell thermostat?

when fitting a honeywell wireless therostat cm900 to a glow worm 35ci combi, do you connect the relay box to the voltage free terminals or the mains voltage controls?

Paul
January 2010
HoneywellHoneywell CM900Heating, Home Heating SystemsThermostat Combi Wireless

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Honeywell CM900 Thermostat Fitting - Glow Worm 35CI