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    coolmax's Avatar
    coolmax Posts: 1, Reputation: 1
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    #1

    Jul 29, 2015, 02:50 PM
    What is the pressure for r-22 on a carrier split systems
    What is the low and high side pressure on a carrier split system use r-22 Freon the model no. 38hdc024310 thank you.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Jul 29, 2015, 03:13 PM
    Can't tell you to a pinpoint because you need to know the following:
    Outdoor ambient- condenser air entering temperature
    Outdoor condenser air leaving temperature
    Return air temperature- air temperature entering the indoor coil
    Supply air temperature- air temperature leaving the indoor coil
    The wet bulb temperature of the return air
    Head (high side) pressure
    Liquid line temperature (Small line at the outdoor unit)
    Back (low side) pressure
    Suction line temperature (Big line at the outdoor unit)
    That said, on a 90-95* day, 70ish low, 225ish high. Also will depend on condition and cleanliness of system-dirty coils in and outside.
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