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  1. #1
    Join Date
    Mar 2003
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    any work on a Koolfire chiller for residential, cooling glycol loop to the house
    m/n R21-60
    s/n E0210061
    my son was there and the customer is having problem, cylcing on pressure switch, they have good flow, but this unit is cutting in and out, cut in set at 90, cut out set at 55, has 225 head pressure, R22 system,
    is this system on a auto expansion valve or a TXV, is it critical charge with TXV, and any suggestion as to shy short cycling

  2. #2
    Join Date
    Sep 2001
    East Stroudsburg, PA
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    Try posting in the Residential HVAC forum.

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