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  1. #1
    Join Date
    Mar 2008
    Location
    England
    Age
    34
    Posts
    63
    Rep Power
    17

    Carrier 30RB CHW Pump Failures



    Lads,

    Got a Carrier 30RB0262 with Hydroinic module. Only 3 years old and pumps are now tripping on their thermistors on start up giving a P32 and P33 alarm.

    I have a pump discharge pressure of 2.2Bar, suction of 1.1Bar. Strainer has pd of 20kpa. Evaporator pd is 60kpa. Pumps are wound in star rated with a max current of 5.7A and we have around 5.2A on each.

    Think there may be insufficient water in system but buffer tank on discharge of pumps so can't vent whilst pumps are running as always water present.

    Any ideas?



  2. #2
    Join Date
    Apr 2009
    Location
    israel
    Age
    50
    Posts
    778
    Rep Power
    18

    Re: Carrier 30RB CHW Pump Failures

    check feed back wiring to controller, from pump contactors if
    this tends to happen on these carrier modles
    check your water flow sensor as well !
    THE DEFINITION OF A SMART PERSON IS ONE WHOM LEARNS FROM HIS MISTAKES!!!

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