Texas ClimateMaster TT 30 heat turns off when water heater comes on

Discussion in 'Maintenance and Troubleshooting' started by ayformative, Jan 2, 2018.

  1. ayformative

    ayformative New Member

    My ClimateMaster Tranquility 30 2-stage system runs normal to heat up the house and with supply temps going up to 108 degF. Just noticed recently during an extended cold front (anything below 30 in Houston is a winter storm!) that the heat cuts off whenever I use hot water in the house, and does not come back on! Fan continues to run without heat and supply temps drops to 60+degF.

    System model number is TTV072BGC01ARKS
    Based on the manuals, this is a:
    Tranquility 2-Stage Vertical 072 MBtuh
    CXM Controls
    HWG with internal controls
    Standard / Right Return / Top supply (TTV) / ECM motor

    The system is a closed loop, 300-ft deep well. All water connections appear correct (looking at the typicals in the manual, and matches the attached drawings). Not sure why or how the water heater can lockout the compressor? When I shut off all the thermostats and reset them, system runs as normal again.

    Any help or advice is greatly appreciated.

    Side note: Wanted to say what a great forum this is and all the posts and answers have been invaluable in helping understand how my geothermal system works.

    Attached Files:

  2. docjenser

    docjenser Well-Known Member Industry Professional Forum Leader

    You have single 300ft well for a 6 ton heat pump?

    You also have a 38F delta T over your air coil, which is pretty high indicating not enough flow. Check your filter. If your filter is clean, check your blower setting.

    You using hot water and locking out the unit does not make much sense to me right now.

    Tell us more about operating condition, follow the checklist here on the forum. Without some data not much can be said.

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