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  1. #1
    Join Date
    Jul 2012
    Location
    st louis MO
    Posts
    9

    Confused honeywell prestige 2.0 2 quick qestions (IAQ)

    i just installed this, 1 stage geo-thermal (mammoth 4.5 ton)

    1.the heat works well with a delta T of 33, but my back up electric will not come on, the furnace tech a week before could not get it to work so it could be that its just bad, I did not know where the L lead was suppose to go, i put it on the L/A in the EIM ??

    2. the AC works fine with delta t of 17

    3. is there a way to see how many minutes/ hours the system is running? that was one of the main reasons i got this thing, since we dont have internet here. i can't find a counter for this anywhere

  2. #2
    Join Date
    Jul 2012
    Location
    st louis MO
    Posts
    9
    Quote Originally Posted by turbo v6 camaro View Post
    i just installed this, 1 stage geo-thermal (mammoth 4.5 ton)

    1.the heat works well with a delta T of 33, but my back up electric will not come on, the furnace tech a week before could not get it to work so it could be that its just bad, I did not know where the L lead was suppose to go, i put it on the L/A in the EIM ??

    2. the AC works fine with delta t of 17

    3. is there a way to see how many minutes/ hours the system is running? that was one of the main reasons i got this thing, since we dont have internet here. i can't find a counter for this anywhere
    any one?

  3. #3
    Join Date
    May 2008
    Location
    Central Fla.
    Posts
    311
    Give us some details about your tstat, how many stages of heat does it have?

  4. #4
    Join Date
    Jul 2012
    Location
    st louis MO
    Posts
    9
    Quote Originally Posted by TwincamDave View Post
    Give us some details about your tstat, how many stages of heat does it have?
    old......geo-unit...........new(EIM)
    W2........-see note.......AUX1| note(This goes straight to the Electric unit, along with a common so not it goes AUX1 > input of electric unit.) this is how it was wired with the old thermo
    X..........L....................L/A
    Y1.........Y....................Y
    O..........O/B.................O/B
    C...........C.....................C
    R...........R......................R
    G...........G.....................G

    the geo unit is 1 stage heat/cool (4.5t) with aux electric backup/stage 2 (15KW)

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