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  1. 04-01-2005, 02:01 PM #1
    haileyj
    haileyj is offline Regular Guest
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    I have a Trane XL13i A/C unit with two-speed fan operation in the outside unit. Does anyone know when one speed is used vs. the other? I believe the control for this operation is in the unit itself and not in the thermostat. I would think it would start out in low speed and shift to high speed if needed although I only have witnessed it working in one speed.

    Thanks


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  2. 04-01-2005, 03:32 PM #2
    dash
    dash is offline Banned
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    As far as i know ,they operate based on outdoor temperature,ie above 85° F high ,below that low speed.Not at all sure of exact temperature.
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  3. 04-01-2005, 05:30 PM #3
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    duct dr
    duct dr is offline Professional Member
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    Dash, I think you're right. I have the product specs. on the XL13i as well as others. I'll see if I can find the 2 speed fan info.
    "If you can't fix it, don't break it."
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  4. 04-01-2005, 06:14 PM #4
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    duckman373
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    The fan runs on low when the outdoor temp is below 75* and then it switches to high. Lower speed in lower ambient temps helps with head pressure control.
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