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-   -   Wiring trane thermostat tcont900 to 5 wire (https://www.askmehelpdesk.com/showthread.php?t=423718)

  • Dec 9, 2009, 04:20 PM
    wh3355
    Wiring trane thermostat tcont900 to 5 wire
    I have a new Trane t900cont thermostat (3 wire). How do I wire it to an exsiting 5 wire that comes out of the current socket? My ac usint is a Trane XR15 with Trane AHU 4TEE MODEL
  • Dec 9, 2009, 08:43 PM
    KC13

    If the thermostat has only 3 connections, it requires the matching equipment interface module.
  • Dec 10, 2009, 03:08 PM
    wh3355

    What is the name and model of the interface equipment? Thanks
  • Dec 10, 2009, 03:14 PM
    hvac1000
    All sorted out here

    Trane T-stat: 900 will not work with XL15i??? - Heating & Air Conditioning Forum - GardenWeb

    BUY the Honeywell

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