Chiller Evaporator can effect to pump get trip?

Discussion in 'HVAC Heating & Cooling' started by chomnap, Dec 3, 2008.

  1. chomnap

    chomnap New Member

    Dec 2, 2008
    M&E engineer
    We have 3 chillers, 3 CHWP and 3 CDWP dedicated for office tower building load.

    Chiller technical room is at roof floor.

    When we run all CDWP, it is fine.

    If we start running one CHWP, that is fine also.

    But if we run 2 CHWP, one CHWP will make main circuit breaker get trip.

    Note: breaker calibration is 150%[160A] higher than normal rated Amp.
    - Cable line to each pump is fine, around 30 or 38 DegC
    - During Breaker get trip, max rated Amp=80A
    - CHWP- Chilled Water Pump
    - CDWP- Condenser Water Pump

    Could you kindly advice?
    Does the surge pressure head cause on evaporator section can effect to motor overload?

    Very thanks for your advice and comment.


Similar Threads: Chiller Evaporator
Forum Title Date
HVAC Heating & Cooling Goodman cased evaporator installation Oct 21, 2016
HVAC Heating & Cooling Evaporator Replacement Dec 14, 2015
HVAC Heating & Cooling LOW CFM effect and limits on evaporator/AC system ?? Aug 1, 2012
HVAC Heating & Cooling Residential Evaporator Coils Placement Jul 11, 2012
HVAC Heating & Cooling 3.5 ton evaporator Jan 1, 2011

Share This Page