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    Jan 23, 2010, 07:13 PM
    New Honeywell Thermostat Installation
    We have Concord heat pump in our new home. There was a LuxPro thermostat connected to the system. I purchased a Honeywell RTH7600D in order to have a programmable thermostat.

    I replace the old thermostat with the new Honeywell (following the directions of the Honeywell Tstat). When I started it up, the heat only blew cold air.

    Here are wires that are present.


    Old LuxPro Tstat

    E - Black wire that is connected to the W2 terminal
    Y - Yellow wire
    B - empty
    O - Blue wire
    W2 - White wire and other end the black wire from E terminal
    R - Red wire
    G - Green wire
    C - Brown wire

    The new Honeywell terminals are as follows:
    C
    G
    Y
    O/B
    RC
    R (with a bridge going to RC)
    Aux
    E
    L

    The connections I made by following the instructions on the new Honeywell Tstat:

    Old Thermostat New Thermostat

    E (black wire)--------------------- E (with other end connected to Aux)
    Y (Yellow wire)--------------------- Y
    O (blue wire)---------------------- O/B
    W2 (white wire)------------------- Aux (along with other end of E wire)
    R (red wire)------------------------ R
    G (green wire)--------------------- G
    C (brown wire)--------------------- C

    I let the hat pump run all afternoon to see if it would start blowing out warm air but no such luck

    Any ideas?

    Your help is much appreciated!

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