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  1. #1
    Join Date
    Feb 2011
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    Trane C.U. RAUA-2CC4

    what is the controller for the cylinder unloading solenoid valves on this condensing unit? It is reading low pressure right off the suction service valve, the unloader solenoids are tied to this control. The one i'm working on is damaged.

  2. #2
    Join Date
    Feb 2006
    SouthEastern Virginia
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    What model compressor is in this Model-R or Model M?
    It might get loud!

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