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Wiring in a new thermostat

I have an old intertherm thermostat that i am replacing with a new honeywell. on my old thermostat the wiring is as follows: X, W2, E, Y, O, G, R. on the new honeymell, there is no X. after i wire in the new thermostat i have an extra wire that was in the X slot on the old thermostat. the new honeywell has a opening for a common but says it is optional with batteries. the thermostat has 2 AA batteries to light up the display. would the wire for the X slot be wired into the "common" slot anyway?

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Yes .common as in the netural side of the transformer x to cif not hooked up the stat will still work. and honeywell has good support for their products . Tom

Posted on Jun 21, 2009

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