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    rockyteeer's Avatar
    rockyteeer Posts: 1, Reputation: 1
    New Member

    Jul 6, 2006, 08:46 PM
    6 wire AC/Heater to 5 Wire thermostat

    I have a Coleman BRCS0301BB AC and a gas based heting unit. I see 6 wires coming up to the thermosat -


    I'm trying to install a new digital thermostat with 5 connectors -

    Rh : Heating power supply
    Rc : Cooling power supply
    W : Heating signal
    Y : Cooling Signal
    G : Fan

    Can anyone advise me on how to connect these and what to do with the spare wire?

    intuity's Avatar
    intuity Posts: 1, Reputation: 1
    New Member

    Oct 27, 2006, 01:31 PM
    I've got a similar problem, have you found a solution?

    Thank you
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
    Ultra Member

    Oct 27, 2006, 01:48 PM
    RH&RC jumpered to red: yel to cool:white to heat:green to fan: Tape off other to wires. This is normal providing these colors are connected to same at air handler
    sonnymt's Avatar
    sonnymt Posts: 2, Reputation: 1
    New Member

    May 28, 2008, 07:36 PM

    Yeah I have tried most of the solutions I have read about on several of these pages, yet no luck.

    I have determined that the Blue, Yellow, Orange, Red, White wires go to the AC and
    Additionally the Green, Red, White, Blue wires go to the Furnace.

    So... how should I connect a five wire programmable thermostat?

    Does anyone have a clue?

    tigers90's Avatar
    tigers90 Posts: 2, Reputation: 1
    New Member

    Jul 15, 2010, 09:15 PM
    Try jump wore between rh and rc, hook red to any terminal of rh or rc
    Then yellow to cooling
    White to heat
    Blue could be common or not used.
    Brown cap off

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