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    Joegiveitatry's Avatar
    Joegiveitatry Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 3, 2009, 01:12 PM
    Wiring Honeywell RTH6400D thermostat to Carrier ZONECC3Z(AC/HP)01
    I want to replace the carrier thermostats with Honeywell programmable thermostats. The wiring guilds aren't clear in the instruction manual. The Carrier thermostat has the following:

    R (red wire)
    C (blue wire)
    Y/Y2 (Yellow wire)
    Y1 (empty)
    G ( green)
    W/W1 (White)

    There are no jumpers in the wiring.

    The Honeywell RTH6400D has the following:

    G
    W
    "not used"
    Y
    R
    Rc

    The R and Rc are jumpered.

    How the heck wire the RTH6400D?
    greghvacguy's Avatar
    greghvacguy Posts: 45, Reputation: 2
    Junior Member
    		  
    #2

    Jan 3, 2009, 01:18 PM

    Red to rh keep the jumper to rc
    White to w
    Yellow to y
    Green to g
    Drop the blue or put it to c or b
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