Question on Honeywell th8000 emer heat
Results 1 to 4 of 4
  1. #1
    Join Date
    Oct 2005
    Posts
    23
    Does this thermostat automatically cut in the emergency heat once the balance point is reached on the "HEAT" setting? Or does it need to be set to "Em. Heat" to use the aux heat strips? We are seeing outside temps at 34 F and the system runs a lot with no indication of Em. heat being used.

  2. #2
    Join Date
    Oct 2003
    Location
    Washington
    Posts
    7,405
    Sounds like your installer wired the system wrong. Dependant on how they set the system up, aux heat should come on at either a certain outdoor temp or differential in set temperature to actual temperature. I can explain this further to ya if need be.

  3. #3
    Join Date
    Jan 2003
    Location
    Kentucky
    Posts
    2,651
    if it is a touchtone,you can set it up to do anything,also,on some dual fuel applications...there must be a jumper wire between aux. and emergency heat terminal at stat,dont remeber on straight heat pumps though...i dont believe that it is required

  4. #4
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,817
    The VP tries its best not to bring on strips. Could be that your pump alone is doing well enough even at 34 out. Crank it up 5 degrees and see what happens.

    For emergency heat as first stage, e-aux must be jumped.

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