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rooftop unit trane

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creger.robert
creger.robert Member Posts: 105
in THE MAIN WALL

have 12-1/2 ton rooftop unit trane r22 has 2 circuits

one circuit running fine

2nd circuit high head low suction like a restriction-did frost test freezes at orifices on this circuit

does not freeze at orifices on circuit running fine

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,487

    Plugged filter drier? or plugged orifices

  • Matt_67
    Matt_67 Member Posts: 311

    Plugged orifices are really common on those - especially if they have been a little abused with dirty condensers.

  • creger.robert
    creger.robert Member Posts: 105

    filter drier has been changed

  • Ironman
    Ironman Member Posts: 7,851

    How about a little more info?

    Is this a heat pump, straight a/c, or gas pack?

    Model number? What are your pressures, SH, and SC?

    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    PC7060ChicagoCooperator

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