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  1. Replies
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    Views
    2,019

    are there other air handlers with secondary loops...

    are there other air handlers with secondary loops ? may be pumps were changed and one pump is over powering another. or maybe as simple as a clogged strainer good luck
  2. Thread: trane rtu

    by cool frog
    Replies
    6
    Views
    712

    the only thing i could think of is to blow nitro...

    the only thing i could think of is to blow nitro into evap coil from suction line to try to clear the restricted orfice-good luck
  3. Replies
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    4,005

    by front seating the suction service valve that...

    by front seating the suction service valve that compressor should be able to pump down to about 20 inch. vac. on the suction side of the compressor regardless of what charge is in the unit. if it...
  4. Thread: UA STAR

    by cool frog
    Replies
    24
    Views
    3,038

    local 475- New Jersey my company...

    local 475- New Jersey

    my company had us take the nate test a few years ago and i found it pretty easy. Now they are pushing the star test. We took it in october and only 50% of the...
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    784

    i think a friend of mine has one of these systems...

    i think a friend of mine has one of these systems in his house that was built in 1920. the compression tank is in the attic and is open through the roof . its nothing more than a storage tank for...
  6. Replies
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    2,012

    cut out the old shaft ,cut the new one in...

    cut out the old shaft ,cut the new one in workable lengths and use shaft couplers. just make sure that all is lined up perfect- mcmaster sells a whole array of shaft couplers. good luck
  7. Replies
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    929

    and one is in a vacuum and one isn't

    and one is in a vacuum and one isn't
  8. Replies
    11
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    920

    monsen is a good company to work for-low stress

    monsen is a good company to work for-low stress
  9. Replies
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    55,548

    stay bright solder has about the same strenght as...

    stay bright solder has about the same strenght as a brazing alloy that has 5% silver.
    as for the flux goes if it is for refrigeration/air conditioning work it should have "no" acid.
    when i...
  10. Replies
    9
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    839

    you will still be able to buy r22 long after they...

    you will still be able to buy r22 long after they stop making it, i work on large chillers and they stopped making r11 about ten years ago and they have such a stock pile of r11 from all the...
  11. Replies
    13
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    1,918

    no problem fixerup. i had 5 compressors with bad...

    no problem fixerup. i had 5 compressors with bad check valves in them. it took me a while to figure it out.
    remember if you have low discharge super heat than your suction superheat must be low...
  12. Replies
    13
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    1,918

    TO FIXERUP if you have bad discharge...

    TO FIXERUP
    if you have bad discharge check valves is that on the off cycle like overnight your refrigerant will/can migrate from your condenser through your compressor and over fill your...
  13. Replies
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    16,890

    local 475, NEW JERSEY

    local 475, NEW JERSEY
  14. Replies
    13
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    1,918

    if these are the carrier screws that i think they...

    if these are the carrier screws that i think they are then i would check my discharge check valve
  15. hey guys, just got back from training on these...

    hey guys, just got back from training on these compressors up in canada. i'm also a little leary to new technolegy but these are pretty bullet proof. on board computer controls bearings and inlet...
  16. Replies
    91
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    30,582

    hey guys, i had the same problem with a smaller...

    hey guys, i had the same problem with a smaller flowtronic and it was caused by the unit not configuered properly. my unit was configuered for txv's when it should have been for exv's. did you go...
  17. Replies
    16
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    3,795

    if you had a restriction your superheat would be...

    if you had a restriction your superheat would be high.
    also,when troubleshooting never take anything for granted.
    you might have to look at the duct system for restrictions.

    youcould have a...
  18. Replies
    49
    Views
    3,433

    double bubble asked the first right question,what...

    double bubble asked the first right question,what type of chiller is this?
    a recip compressor doesn't know or care what type of condenser it has, just as long as it is sized properly....
  19. Replies
    11
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    1,932

    that oil is big bucks to

    that oil is big bucks to
  20. Replies
    5
    Views
    753

    i got the clog in the low temp heat exchanger...

    i got the clog in the low temp heat exchanger broken up. now its just trimming the charge
  21. Replies
    11
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    1,932

    it depends if you have the optional sution...

    it depends if you have the optional sution buterfly type service valve. if you do, just recover everything into the condenser and look for that nice big service valve on the bottom of the oil...
  22. Replies
    3
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    2,209

    buy a wet bulb indicator. they never go out of...

    buy a wet bulb indicator. they never go out of calibration and they either work or they don't because of broken glass. somebody put a posting a couple of months ago and i can't remember the brand...
  23. Replies
    4
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    645

    also if you have a mixing or tempering valve i...

    also if you have a mixing or tempering valve i would look at that if it had worked in the past. mineral deposits have a tendency to clogg these up
  24. Replies
    5
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    753

    thanks for the advise r718. 1- as...

    thanks for the advise r718.
    1- as for the 140 deg. i'm pretty sure its because of internal overloads on solution pump.

    2- i had to have the high temp...
  25. Replies
    5
    Views
    753

    i have a carrier 16jt 500 tons(mexico vintage)...

    i have a carrier 16jt 500 tons(mexico vintage) that my cutomer locked up on me. after having hi-temp generator retubed and getting the machine up and running my boss sends me there on a friday night...
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