Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Switching thermostats I have a Simple Comfort 2200 thermostat that I want to switch with a Honeywell RTH3100 it is non programmable. Could you explain the two wires on the left side of the simple comfort thermostat?

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The two wires are the control circuit from the heater your running. They go to the thermostat and close when it get below the thermo. setting and start the heater.

Posted on Jul 01, 2009

  • james
    james Jan 04, 2014

    not really..the thermostat setting will not go down but will go up whats wrong

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