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-   -   Trying to upgrade old 8 wire thermostat to new digital (https://www.askmehelpdesk.com/showthread.php?t=249949)

  • Aug 17, 2008, 07:09 PM
    alex0826
    Trying to upgrade old 8 wire thermostat to new digital
    Hi, I thought this would be a breeze since I build computers, looks like I was wrong :confused: I took the old thermostat apart to expose the wires and noticed that in the instructions, there is no mention about 8 wire hook ups? Don't know what I'm doing at this point, and from what I can figure, some wires have to be combined or excluded, because the new digital thermostat doesn't have as many connections? I bought the Hunter 44260 and I have the
    Carrier 4.0AQ030300BB
    Volts 208/230
    w/aux heat

    I hope my blabbering didn't make this any more confusing...
    Thanks for your time.
  • Aug 17, 2008, 08:58 PM
    wmproop
    When you take the junk(hunter ) tstat back where you got it,ask for a good honeywell tstat that will do what you need,, if its battery operated,you can do away with the common/c post,also if your system operates on 1 transformer,you can jumper the r/c and r/h which should be red (hot) wire and you have done away with 2 of the wires,now all you have to hook up is 6 wires,, goodluck
  • Aug 18, 2008, 01:42 AM
    hvac1000
    2 Attachment(s)
    Quote:

    Originally Posted by alex0826
    Hi, I thought this would be a breeze since I build computers, looks like I was wrong :confused: I took the old thermostat apart to expose the wires and noticed that in the instructions, there is no mention about 8 wire hook ups? Don't know what I'm doing at this point, and from what I can figure, some wires have to be combined or excluded, because the new digital thermostat doesn't have as many connections? I bought the Hunter 44260 and I have the
    Carrier 4.0AQ030300BB
    Volts 208/230
    w/aux heat

    I hope my blabbering didn't make this any more confusing...
    thanks for your time.


    Here is some reference when you get a better/correct thermostat.

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