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My we Honeywell RTH6450 thermostat does not have a slot for the black wire of my red/black thermo wire. Which slot does the black go to?

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  • Anonymous Mar 25, 2014

    Does the black wiring on the honeywell lr1620 black wire goes to the g connection on the honeywell rth6530

  • Anonymous Mar 27, 2014

    vulcan heating system. Old thermo had wires labelled as 1 and 3

  • Anonymous Mar 31, 2014

    • 2-wire heat-only system: Connect one wire to R terminal, one wire to W terminal.
    This is what it says for a honeywell Ct87k thermostat. So does that mean it dosent matter which wire goes where?

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