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  1. #1
    Join Date
    Nov 2001
    Posts
    386

    Bryant Preferred Thermidistat

    How many wires are required to allow the thermidistat to operate as intended by manufacturer. I assume that an outside temperature sensor is also requiredI presently have 8 available wires but not sure this is sufficient.

  2. #2
    Join Date
    Nov 2001
    Posts
    386
    Should add that this will be used with Fv4 vs handler and Preferred 15 seer single stage HP.

  3. #3
    Join Date
    Dec 2006
    Location
    Middle Tennessee
    Posts
    11,347

    *

    let's see if you use the dehumidify option you will need wires for these terminals!

    looks like you are short 1 wire!

    R
    O
    C
    G
    Y
    S1
    S2
    AUX
    DH



    .

  4. #4
    Join Date
    Nov 2001
    Posts
    386
    Thanks. So essentially it is a waste of money to purchase the Bryant Preferred Thermidistat. Bummer for sure.

  5. #5
    Join Date
    May 2007
    Location
    DC Metro area
    Posts
    3,225
    Why would an outside temperature sensor be required? That's new to me. Did someone tell you this? It would be sensing humidity from inside.

    The thermidistat would be good to have with the FV4.

  6. #6
    Join Date
    Nov 2001
    Posts
    386
    I was led to believe that an outside temperature sensor was required to have the thermidistat operate properly. I also would think that outside temp would have little to do with RH reading inside. Perhaps I misunderstood.

  7. #7
    Join Date
    Nov 2001
    Posts
    386
    So perhaps 8 wires would be sufficient to take advantage of humidity control and allowing VS handler to ramp up and down?

  8. #8
    Join Date
    May 2007
    Location
    DC Metro area
    Posts
    3,225
    I'm not sure if it would be or not. Hopefully someone can confirm. I didn't think an OT sensor was needed. I'd personally be surprised if more than 8 wires was needed to control a single-stage system off of a thermidistat. The VisionPRO IAQ isn't cheap, but it requires just a few wires and is a nice thermostat.

  9. #9
    Join Date
    Dec 2006
    Location
    Middle Tennessee
    Posts
    11,347

    *

    you don't need the o.d. sensors if you don't have dual fuel!

    so the 8 wire conductor would work!

    usually people want to see the o.d. temp with those stats!

    sorry for partially misleading you!



    .

  10. #10
    Join Date
    Nov 2001
    Posts
    386
    That is good news. Thanks for double checking requirements.

  11. #11
    Join Date
    Jan 2008
    Location
    s chester county,pa
    Posts
    140
    if it is the new edge thermidistat you only need two wires. the outdoor sensor can be used to lock out aux heat

  12. #12
    Join Date
    Apr 2008
    Location
    Alberta Canada
    Posts
    2,246

    I thought they needed evolution

    Quote Originally Posted by tompass View Post
    Should add that this will be used with Fv4 vs handler and Preferred 15 seer single stage HP.
    R U sure you can operate a FV4 with anything but evolution or Infinity control. Be smart and put these in. It will tell you everything about system.
    Do it right the first time.

  13. #13
    yes you can use any stat BUT the evoltuion with the FV fan coil. The FE is the fan coil the can only be operated with the evolution control

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