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

    Aug 21, 2007, 12:26 PM
    Pressures not in equilibrium when system is off.
    This is in reference to a 13 SEER, 5 ton, RHEEM a/c unit:
    There is a difference of approximately 100 psi between the suction and liquid lines when the system is off.
    What is this lack of equilibrium an indication of?
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
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    #2

    Aug 21, 2007, 04:31 PM
    Some systems have a hard shut off thermostatic expansion valve, They do this for efficiency. A system with this device will not equalize during the off cycle. Good luck. Mike
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