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  1. #1

    Confused Difficult question to answer, take 2

    All, I am a bit frustrated at my dealer and to some extend at TRANE, i have a simple question, so far no clear answer, if I may, I will ask it here, already did without much success. Here it is:

    My system
    Trane 16xli 3 Ton heatpump
    Trane TAM7 air handler with 20kw coil
    Thermostat, Aube TH146-p-u ( capable of handling 2h/2c 3h/2c 4h/2c)

    On the air handler w1 and w2 are wired from thermostat, no jumper between w 1 and w2 but when the aux heating is kicking in, I live in MOntreal Canada so yes aux does kick in, only w1 comes on, I know because the thermostat as a LED for each stage. The thermostat is configured as 3h/2c.

    MY question: in that mode 3h/2c, should the jumper between w1 and w2 be installed otherwise my thermostat should be set to 4h/2c in order to activate w2 when required?

    Thanks a lot

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,060
    Sounds wired right, gotta tell the stat to be 4h/2c. No jumper.

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