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    msbrew's Avatar
    msbrew Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jul 2, 2007, 05:59 PM
    Which wires to I hook up to new thermostat?
    I would be so grateful if someone could help me out. I have an old Janitrol thermostat, just purchased a Lux programmable one. The wiring doesn't all match. I'm having a hard time with the RC and RH, which have a jumper--this is on the new one. Here is the diagram for the old wiring:

    Y=yellow
    G=green
    R=red
    O=brown

    W2 and E share white wire
    C=blue

    Here is the letters on the new LUX:

    W
    Y
    G
    B
    O
    RC/RH
    C

    How would I connect the new one to the old one? I appreciate any info you can give me. By brain isn't working right or something!
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #2

    Jul 2, 2007, 08:06 PM
    I'm pretty sure you have the wrong thermostat, if you have a heat pump the new Lux thermostat will not work. I would also suggest another brand, Lux isn't known to be a good qaulity thermostat, and they don't last long.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #3

    Jul 2, 2007, 08:13 PM
    You may want to browse through the sticky at the top of the forum. It has some good info on thermostats and heat pumps.
    msbrew's Avatar
    msbrew Posts: 2, Reputation: 1
    New Member
    		  
    #4

    Jul 2, 2007, 08:20 PM
    Quote Originally Posted by msbrew
    I would be so grateful if someone could help me out. I have an old Janitrol thermostat, just purchased a Lux programmable one. The wiring doesn't all match. I'm having a hard time with the RC and RH, which have a jumper--this is on the new one. Here is the diagram for the old wiring:

    Y=yellow
    G=green
    R=red
    O=brown

    W2 and E share white wire
    C=blue

    Here is the letters on the new LUX:

    W
    Y
    G
    B
    O
    RC/RH
    C

    How would I connect the new one to the old one? I appreciate any info you can give me. By brain isn't working right or something!!
    Thanks for the info. I did figure out that I need a different one. I'll be purchasing a Honeywell tomorrow.
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #5

    Jul 2, 2007, 08:22 PM
    Good deal, sometimes paying a little more is a good thing.
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
    Ultra Member
    		  
    #6

    Jul 6, 2007, 10:23 PM
    W-WHITE, R-RED, G-GREEN, 0-BROWN, Y-YELLOW, C-BLUE, JUMPER RC-RH
    THE O (BROWN) is used for a heat jump to engage the reversing valve in the air conditioning mode. Nothing on the "B" terminal. Mike
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