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chillers

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mattstpaul
mattstpaul Member Posts: 2
in A-C, Heat Pumps & Refrigeration

all winter long I had I had no issues with my circulator pumps and as of the other day when they turn on the new chiller that was installed at the end of the season last year I have two pumps that are leaking majorly from the bottom replace the seals and the gasket and they still leaking the people that came out and installed and fired up the chiller did they blow my pumps out

Comments

  • ratio
    ratio Member Posts: 4,039

    Where are they leaking from?

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 18,081

    Was the system drained.? Did they run the pumps dry? Does the chiller run in the winter? Does the system have glycol?

    mattmia2Ironman
  • pecmsg
    pecmsg Member Posts: 6,238

    Can you explain a little better.

    Use some periods and form sentences.

    IronmanPC7060
  • mattmia2
    mattmia2 Member Posts: 13,219

    glycol mixtures leak more easily than plain water. tolerances get bigger when things are colder.

  • mattstpaul
    mattstpaul Member Posts: 2
    1000041301.jpg

    leaking from the bottom of the pump housing ǰ

  • hot_rod
    hot_rod Member Posts: 25,240

    there is a fiber or rubber washer between the flanges the connect the pump to the braided stainless connectors.

    That should be replaced after the connection is wire brushed and cleaned.

    In some cases the flex connectors leak where they are welded to the flange.

    If it is glycol, how old is the fluid? Check the ph of the fluid.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • mattmia2
    mattmia2 Member Posts: 13,219

    Are you sure it is leaking and not condensation? There is no insulation on the pump and the air sealing of the insulation of the piping seems inadequate.

    SlamDunk
  • SlamDunk
    SlamDunk Member Posts: 1,752
    edited May 14

    look at the sweat on the braided flex line and stains on insulation. If you have exposed pipe higher up, it will sweat and drip down. The rusty flex flange says a lot. Do you have a water meter on the chilled water make up line? Do you record the meter reading weekly?

    mattmia2

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