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  1. Replies
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    705

    it was set by Hussmann local distributor who have...

    it was set by Hussmann local distributor who have the original contract with the store.
    we are not allowed to change any setting. sort of sub contractor for this store.

    was told that 10 ppm is...
  2. Replies
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    705

    how big is 10 ppm leak? can not find the leak

    leak detections system at supermarket set at 10 ppm leak, 100 ppm spill, 300 ppm evacuate. R-22 system.

    inside the walk in cooler where one of the zone air sample filter located pick-up 12 ppm...
  3. I did and the problem is leaking at Hydrophobic...

    I did and the problem is leaking at Hydrophobic filter. replaced the filter and seems runs good.
  4. thanks for the link, the model is different from...

    thanks for the link, the model is different from the one i'm dealing with HGM-MZ . are they pretty much the same way of diagnostic?
  5. feeling the suction directly from the pump it...

    feeling the suction directly from the pump it sucking good. don't remember the actual psia reading in diagnostic screen.
    system temporary disabled.
  6. BACHARACH HGM-MZ HALOGEN GAS MONITOR NO FLOW PROBLEM !!!

    refrigerant leak monitoring systems with 16 zone keeps going into alarm every 15 min.

    alarm fault code 0800 no flow zones on multiple zones. it will cleared itself next sampling cycle but...
  7. No, I'm talking about 24 V fuse on control board....

    No, I'm talking about 24 V fuse on control board. the unit it self 575 Volt with 40 amp breaker.

    I would install resettable fuse till found the problem.
  8. Replies
    9
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    827

    recently have similar problem, Eng-A MUA shut...

    recently have similar problem, Eng-A MUA shut down intermittent. customer reset it by on/off breaker and back to normal for about 30 min and shut down again.
    flame failure error, clean the flame...
  9. had the same problem with carrier rooftop unit,...

    had the same problem with carrier rooftop unit, found shorted 24 volt control wire to economizer wounded to chassis that intermittent blowing 5 amp fuse. had to move the top panel to see it.
  10. Replies
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    3,674

    JP, what temp expected for a good separator?...

    JP, what temp expected for a good separator? should it be slightly lower than discharge temp?
  11. Replies
    10
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    431

    Glad your on board, have you work on engineered...

    Glad your on board,
    have you work on engineered air model#FWB-182/DJ-60-CO I think is made in your City, Edmonton.

    421151421161421151421161

    did maintenance few days ago but have no idea how...
  12. Thanks for all inputs, Leak check entire system,...

    Thanks for all inputs,
    Leak check entire system, electronic leak detector doesn't pickup anything. No oil residue present.

    If this is original charge then it survived last winter. If there is...
  13. I thought 80% is total charged, mean nothing in...

    I thought 80% is total charged, mean nothing in condenser and liquid line.

    some condensing unit i have seen with LAC have label that add certain amount of lbs after clear sight glass.

    in this...
  14. it could go down to 0 - 10* F in winter the...

    it could go down to 0 - 10* F in winter

    the cooler fairly new, installed in 2011 by other company.
  15. is sight glass have to be clear of bubble if unit maintaining temp?

    keeprite condenser M# KEZA060M8-HT3B-N264 For 28' dairy cooler. it maintaining temp 35* but sight glass full of bubble.
    after pump down torched the receiver tank, liq is about 5 inch high from the...
  16. Replies
    25
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    2,178

    recently replaced 2 copeland scroll out of lennox...

    recently replaced 2 copeland scroll out of lennox rtus, about 6 years old and compressor considered failed prematurely.

    one of them due to big leak at condenser u-bend pipe burst .burnt compressor...
  17. Replies
    15
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    973

    salesman as the name implied just makes deal. all...

    salesman as the name implied just makes deal. all they do is to make other company looks bad by pointing out any little things they can get and bring it to customer attention and makes them the...
  18. Replies
    18
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    2,200

    haven't check my pressure after pulled down. the...

    haven't check my pressure after pulled down. the reading is base on 27* box.it may have around 20 # back pressure now.
    so far the owner ok with it, all they put inside is just pita breads.
    will...
  19. Replies
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    559

    module build in the motor. yes constant power...

    module build in the motor. yes constant power present.

    at few local supplier, no one has 1800 rpm motor and never know it. most carry only 1550 rpm non ECM.

    I guess the speed is controlled by...
  20. Replies
    10
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    559

    ECM evap fan for WIF problem

    Norlake walk in freezer one of the evap fans changing speed frequently from stop, slow to full speed and stop again, causing freezer evap icing up. M #CPF150DC-A/12051696

    1800 rpm, 208-230 volt,...
  21. Replies
    18
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    2,200

    my sight glass is clear but my head pressure at...

    my sight glass is clear but my head pressure at 95* I would expect around 330# .
    currently at 280#
    door gasket is also an issue here They need replacement but it's been like that for years and...
  22. Replies
    18
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    2,200

    [QUOTE=VTP99;16434021] it's soldered sporlan...

    it's soldered sporlan txv. If there is strainer that can be removed and check it will noticeable Just looking at it. Am I correct?

    Compressor has CPR. Compressor Amp draw close to spec.

    Just...
  23. Replies
    18
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    2,200

    lo side 30 psi. = 0 *f according to the store...

    lo side 30 psi. = 0 *f
    according to the store since a week ago freezer range temp range 5-15 F not maintaining below set point -10*.
    I think txv may be restricted. just couple quarter turn I can...
  24. Replies
    4
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    441

    I have seen many carrier without liquid line port...

    I have seen many carrier without liquid line port just discharge port.I consider it the same pressure although liquid port will read lower pressure if provided.
    many new lennox RTu come with 2...
  25. Replies
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    2,200

    will slightly under charge change the Superheat ?...

    will slightly under charge change the Superheat ?

    I have walk-in freezer that head pressure 50 psi below normal at 280# 95*amb and my Superheat at evaporator is 26*F clear sight glass.404a system....
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