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  1. Replies
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    Month old sman4 yesterday micron reading ol fail...

    Month old sman4 yesterday micron reading ol fail and today high side gauge will not open was nice while it lasted now no confidence in these hopefully I get new ones not some refurbished trash for...
  2. Replies
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    4,750

    I dont remember off hand its been alil while but...

    I dont remember off hand its been alil while but no issues but did have to dial in .
  3. Replies
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    4,750

    Shorted to ground probably due to mechanical...

    Shorted to ground probably due to mechanical issue the new compressor sounds pretty loud but has been running for a while now.......you can go into the Corel controller and change the settings on...
  4. Got it figured out wrong cartridges in self...

    Got it figured out wrong cartridges in self balancing valves and one vav box way undersized thanks for response Alcomech
  5. Replies
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    4,750

    we lost a digital scroll compressor on a new JTS...

    we lost a digital scroll compressor on a new JTS chiller also.
  6. Existing building added VAVs and hot water coils now new addition too cold????.

    Whats up I have a issue with a building we did a TI in we added about 10 new vavs that run off existing boiler with bypass valves self balancing valves and a new unit on roof for cooling basically a...
  7. Replies
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    4,742

    Check your volts when running? Bad contacor...

    Check your volts when running? Bad contacor breaker disconnect? Tighten all connections check voltage drops across them and temps..
  8. Replies
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    5,409

    Sounds like single phase situation... Would look...

    Sounds like single phase situation... Would look like locked but need to make sure all 3 legs present.
  9. Replies
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    3,455

    Did you check voltage to motors when they run...

    Did you check voltage to motors when they run backwards and amp draw ?
  10. Replies
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    1,921

    Previous post is right probably bad cfm works in...

    Previous post is right probably bad cfm works in morning late afternoon gets hot trip out. Check case temp to see how hot its getting.
  11. Replies
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    10,309

    Swivel tee . Or when its colder little lower...

    Swivel tee . Or when its colder little lower pressure do it on the fly with gloves on.
  12. trane pcv 4d centravac any one looking for parts

    Demoing one out pm if interested or need any parts controls etc
  13. Replies
    26
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    2,559

    If you say so likely hood nothing will happen but...

    If you say so likely hood nothing will happen but it can happen and cause damage. Show me where your manufacturer recommends megging a centrifugal motor in a deep vacuum.
  14. Replies
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    2,559

    recommend megging low pressure centrifigul raise...

    recommend megging low pressure centrifigul raise pressure to 1 psi
  15. Replies
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    2,559

    The reason they say not to meg a motor in a...

    The reason they say not to meg a motor in a vacuum is because vacuum there is no atmospheric insulation between the phases and from phase to ground. Arcing can occur inside the motor. Even in a low...
  16. Replies
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    1,164

    i just went through this lost a heat exchanger......

    i just went through this lost a heat exchanger...

    did the system run when failure happen water get in to txv oil etc??

    I had a system do fouled up couldnt even get refrigerant out with...
  17. Replies
    26
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    2,559

    Don't meg a low pressure centrifugal lol

    Don't meg a low pressure centrifugal lol
  18. Replies
    26
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    2,559

    It matters on the compressor I have megged many...

    It matters on the compressor I have megged many only to find inconsistent reading due to refrigerant and oil even called copeland to ask about readings on a job I did which a new building lost one...
  19. Replies
    26
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    2,559

    meggers good for motors suck on compressors to...

    meggers good for motors suck on compressors to many factors refrigerant oil etc get wierd readings
  20. Ya we are in California central I don't know how...

    Ya we are in California central I don't know how many days in the summer that will be below 55 in the mornings and they are never there at night. I will encourage them to repair it. Are there any...
  21. Honeywell w7212a1009 Actuator. Honeywell...

    Honeywell w7212a1009
    Actuator. Honeywell ms7510a2206

    I don't know what kind of enthalpy control was behind louvers in wall but will be back there soon thanks guys.

    Don't have unit mn handy...
  22. The only thing I'm worried about getting it...

    The only thing I'm worried about getting it running is when its cool enough to economise and the load all comes in at once the second stage will call which I believe is first stage when in econo mode...
  23. Do economisers work well in churches? need opinions

    Do econos work well in church setting because of the larrge heat load at once? The system I am working on consists of 2 large air handlers 2 condensers. The system has economiser installed but all...
  24. you need to know what signal your controller or...

    you need to know what signal your controller or actuator takes the co2 sensor usually will have your 24v to power it then puts out a 2 to 10 vdc signal out usually to a specified terminal or...
  25. LOL.

    LOL.
  26. Update Well I got this chiller running if it...

    Update

    Well I got this chiller running if it wasn't for the r 11 I had from a old job.I flushed so much wax out of this thing from the water freon and oil turned straight to wax nastiest ****...
  27. Long story short the chiller is the cheapest pos...

    Long story short the chiller is the cheapest pos i have ever seen only has a LP safety for protection no freeze stat flow switch etc... Also has a city water bypass that is connected tto the chiller...
  28. I've had some luck before I actually was on site...

    I've had some luck before I actually was on site when it ruptured and thought I caught it in time and shut it down to where it could be salvaged but when that **** gets in there with the oil and...
  29. It's all bad can't even get gas out of it because...

    It's all bad can't even get gas out of it because the glycol that was in it gummed the schrader cores up from the inside this thing is done... Combo of the glycol and water huge mess. Thanks for the...
  30. yes ran first pump for couple hours then coupling...

    yes ran first pump for couple hours then coupling broke went picked up new pump with new oil and ran over night had other tech return to add gas guess didnt realise how much moisture / water got in...
  31. Yes have micron gauge but had it at home .. 7.5...

    Yes have micron gauge but had it at home .. 7.5 ton small Dx chiller. Will keep nitrogen vacuum till I get down to 500 microns
  32. How long to get moisture out??? chiller heat exchanger ruptured ..

    Long story short had a plate and frame heat exchanger rupture . Removed and replaced old one install new drier triple evacuated also ran vacuum pump over nite. I am sick so. Had other tech go out to...
  33. Hello thanks I have the system up and running now...

    Hello thanks I have the system up and running now do have a few issues or alarms I am getting a 127 alarm with out any description I thought the alarms were only up to 20 or lower? Also I have one...
  34. York Simplicity Transporter set up need help ...

    Hello I am having some major issues with these simplicity controls and transporter if any one has ever worked on the sytem please help me out....

    #1 Transporter will not recognize SNID wich is...
  35. Enthalpy My this is my friends account and he...

    Enthalpy
    My this is my friends account and he owns a company and call me in sometimes when he has problems for advice he said it has been running normal besides the usual service calls condensor fan...
  36. The main controller will not allow the second...

    The main controller will not allow the second compressor to run if there is no amp draw on the first compressor on the the twinned set to not allow the down stream compressor to run to cause acid /...
  37. yeah I am leaning towards the transformer / power...

    yeah I am leaning towards the transformer / power supply going to try and find a way to put a load on the transformer we have a voltage recorder on it now...
  38. Lol I was playing about the picture its funny you...

    Lol I was playing about the picture its funny you changed it.
    I have not been back but there is a data logger on it checking the voltage to the unit itself. When I installed the new compressor I...
  39. Nice profile pic I am glad to see that is the...

    Nice profile pic I am glad to see that is the future of America.
    PARENTS MAJOR FAIL.
  40. thanks

    thanks
  41. LOST FOUR COMPRESSORS IN TRANE CHILLER?

    Here is a quick run by air cooled trane chiller 2 compressors twinned is first stage and second stage same twinned piping scroll style compressors around 80 ton chiller original call found one...
  42. Replies
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    1,007

    check your coil take the unit sheet metal and dig...

    check your coil take the unit sheet metal and dig in sounds like a blanket of durt thats why your oil is so black probably been running high head for a long time cooking the oil and compresors
  43. Replies
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    It happened to me one wind blew my ladder down...

    It happened to me one wind blew my ladder down and put 2 karate chop marks on my fender of my van I was stuck until the local utility co was reading meters put my ladder back up for me .. never again
  44. Replies
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    670

    be fore you go with the pressure washer and mess...

    be fore you go with the pressure washer and mess the fins up try and take apart the sheet metal to the unit where the condensor coil starts and ends and see if it can be spread apart or opened up...
  45. Replies
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    6,042

    term 2 & 3

    term 2 & 3
  46. Whats the best way to balance an exhaust hood / make up air for comm. kitchen??

    Looking for the best way to balance an exhaust hood and make up air..

    It is in San Francisco and the restaurant its self has a large air handler with chilled water for cooling that is constantly...
  47. Replies
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    1,508

    sounds fun..

    sounds fun..
  48. Replies
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    861

    WHAT ABOUT IN HEATING MODE? YOU COULD HAVE HOTTER...

    WHAT ABOUT IN HEATING MODE? YOU COULD HAVE HOTTER TEMPS GOIN OVER THE MOTOR THAT MAY NEED THE INTERNAL FAN TO PREVENT OVERHEATING
  49. Replies
    4
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    730

    DOES THE UNIT HAVE AN ECONOMISER?

    DOES THE UNIT HAVE AN ECONOMISER?
  50. Replies
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    5,509

    I have seen this many times you unit is locked...

    I have seen this many times you unit is locked out on a safety from the CLO if you push the contactor in it will close I recommend go back and put tattle tales in all your safeties and you will...
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