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unitrane fan coils

mdmd Member Posts: 17
can anyone help me find the btu output for a trane fan coil,,,,,,,  the unit is 4 pipe 2 for heating 2 for cooling the tag says unitrane fan coil air conditioner,,, model  b12aL06  serial number s78f09545. WE  tried to email trane but we got a run around, they were installed about 1978 vintage,,,,thank you..


  • ZmanZman Member Posts: 3,191
    Heating side

    If you have nothing else to go on, many of those where designed for 4fps flow and a 20 degree delta t.

    If you have a 1" supply that would be 8gpm x 20x500 = 80,000 BTU.

    There is a chart in the "conversion factors" tab on the top of the page.

    It is only a rough estimate but it's better than nothing.

    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
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