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-   -   Installing honeywell rth7000 to rheem system (https://www.askmehelpdesk.com/showthread.php?t=276322)

  • Nov 2, 2008, 01:25 PM
    phaedrus69
    installing honeywell rth7000 to rheem system
    On my old mercury manual rheem thermostat, wires were connected as such:
    white to w2 and e
    yellow to y
    brown to x
    green to g
    red to r
    blue to b
    there is also an orange wire that is not used.

    I wanted to upgrade to a digital, programmable thermostat, so I got this honeywell rth7000. The way the old one was connected does not match anything in the installation, and it tells me to call a contractor.
    I have a unit outside and one in the attic. My assumtion is that this is very typical.
    My options on this new thermostat are:c
    g
    y
    o/b
    rc
    r
    and on the other side
    aux
    e
    l
    Any help would be appreciated. I getting very flustered.
  • Nov 2, 2008, 09:55 PM
    hvac1000
    1 Attachment(s)
    Quote:

    Originally Posted by phaedrus69 View Post
    On my old mercury manual rheem thermostat, wires were connected as such:
    white to w2 and e
    yellow to y
    brown to x
    green to g
    red to r
    blue to b
    there is also an orange wire that is not used.

    I wanted to upgrade to a digital, programmable thermostat, so I got this honeywell rth7000. The way the old one was connected does not match anything in the installation, and it tells me to call a contractor.
    I have a unit outside and one in the attic. My assumtion is that this is very typical.
    My options on this new thermostat are:c
    g
    y
    o/b
    rc
    r
    and on the other side
    aux
    e
    l
    Any help would be appreciated. I getting very flustered.


    Your directions are here

    http://customer.honeywell.com/techli.../69-2104ES.pdf

    I am sure you marked your wires before removal so you know exactly where they came from on the old thermostat.

    Attached is also a guide for the X wire and other conversions. You might have to trace a wire back to the unit to see where it actually gods and does. There is NO magic solution.

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