});


Results 1 to 3 of 3
  1. #1
    Join Date
    May 2011
    Location
    Portugal
    Age
    43
    Posts
    6
    Rep Power
    0

    How to tell for sure water side on chiller evaporator is clogged ?



    Hi to you all,
    At our facilities we have a TRANE ECGAL 700 chiller.
    I have an heead loss in the evaporator (water side) of 0,6 bar.
    Trane (now ingersoll) wants to change the pump in the hidraulic circuit.
    The circulator pump makes the water flow to an inercia reservoir.
    I think the problem is an clogged evaporator.
    How do i know for sure if the problem is the evaporator or other hidraulic part.
    Thanks for you help on this.
    Regards
    PF



  2. #2
    Join Date
    Jun 2004
    Location
    Wirral UK
    Age
    53
    Posts
    68
    Rep Power
    16

    Re: How to tell for sure water side on chiller evaporator is clogged ?

    Hi Pfigueiredo

    You can measure the pressure drop across the evaporator and compare it to the manufactures specification. All water chiller manufactures specify what they want as a minimum and maximum pressure drop across the evaporator as from this you can calculate the flow rate. This is where I would start . The next step will be to measure the pressure in and out of the pump again this can be compared to the pump manufacturers spec. Finally take the pump apart - look at the impeller and replace it - Easy job
    "It's better to remain silent and be thought a fool than open ones mouth and remove all doubt"

  3. #3
    Join Date
    Apr 2018
    Location
    TURKEY
    Posts
    11
    Rep Power
    0

    Re: How to tell for sure water side on chiller evaporator is clogged ?

    If you dont have water side gauges and want to understand it from the refrigeration cycle, just check the suction pressure+ temperature. if the suction pressure is low + the superheat value is low, it would most probably indicate a low water flow.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •