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  1. Replies
    13
    Views
    2,799

    Press the current limit setpoint button and make...

    Press the current limit setpoint button and make sure that someone didn't accidently change the unit RLA when they were trying to change the current limit setpoit. Make sure both chillers are set the...
  2. Replies
    5
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    2,092

    Can't really go into the details at this time.

    Can't really go into the details at this time.
  3. Replies
    5
    Views
    2,092

    I've got one piece of advice for you. Under no...

    I've got one piece of advice for you. Under no circumstance sign their restrictive covenent, it's not worth the hastle.
  4. Thread: RTAA340

    by always looking
    Replies
    19
    Views
    1,650

    I had the same problem once and it came down to a...

    I had the same problem once and it came down to a wire being landed in the wrong place on the terminal strip. Follow the wires from the module down to the strip below and verify everything is...
  5. Replies
    153
    Views
    38,687

    Thanks for the info but I have a D design series...

    Thanks for the info but I have a D design series chiller which has a XHS120BF46L00330 compressor, does anyone have anything on this compressor? My slide valve is stuck at around 80%.
  6. Replies
    153
    Views
    38,687

    My e-mail is too long to fit in profile so try...

    My e-mail is too long to fit in profile so try this,
    Email Address Removed
  7. Replies
    153
    Views
    38,687

    Hate to sound like a broken record but could...

    Hate to sound like a broken record but could someone send a copy to me, found one stuck today.
  8. Replies
    2
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    780

    I interviewed there once and was made an offer...

    I interviewed there once and was made an offer which I didn't take because I couldn't get my wife talked in to the move. About five years later I checked back with them and they made me the same...
  9. Replies
    34
    Views
    3,293

    DavyB has it right. You young guys just try to...

    DavyB has it right. You young guys just try to get your foot in the door as a shop guy and if your lucky maybe you can get some schooling payed for by the owner,I'm not so sure I believe that being...
  10. Replies
    9
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    1,683

    If you would like a good alternative to McDonald...

    If you would like a good alternative to McDonald Miller or Johnson take a look at a Harwil Q5. We used them on larger chillers, designed for more flow than the other manufactures can handle.
  11. Replies
    10
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    1,467

    You didn't say how old your machine is. Is it the...

    You didn't say how old your machine is. Is it the lower sump that has the external impeller for motor cooling because I have had one of those locked up due to a contaminated system.You will be lucky...
  12. Replies
    15
    Views
    1,548

    Check you discarge volute for the groove that the...

    Check you discarge volute for the groove that the o ring would mate up to. If there is not a groove then it can't take an o ring.
  13. If you have a part winding start and one...

    If you have a part winding start and one compressor is already running. When the other compressor comes on the vibration of the contactors can trip the relay. Every unit we have out there we have the...
  14. You probably have a bad Guard Pak. Try jumping it...

    You probably have a bad Guard Pak. Try jumping it out(M1-M2). Make sure you have gauges on it to prove you have oil pressure.
  15. Thread: RTAC

    by always looking
    Replies
    17
    Views
    2,604

    The leaks we find are right at the stem of the...

    The leaks we find are right at the stem of the butterfly valve were the handle goes on. No need to remove any insulation usually to find it but you have to have a good leak detector. The usually leak...
  16. Thread: RTAC

    by always looking
    Replies
    17
    Views
    2,604

    We find leaks there all the time. Look for the...

    We find leaks there all the time. Look for the slight oil trace. What you think is a small leak is usually larger. Had one that I could barely pick up, ordered a new valve when I got back to change...
  17. Replies
    37
    Views
    2,486

    I know all shops tend to have their own way of...

    I know all shops tend to have their own way of doing things but I have done probably 50 overhauls in the last 20 years with about 10 of them having a new motor. I have never had a machine balanced...
  18. I had this problem a year or so ago. The...

    I had this problem a year or so ago. The transition contactor was actually hanging up and staying in too long. This may be your problem especially if your resistors look like they have been...
  19. Replies
    12
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    3,327

    I had a little trouble with your original...

    I had a little trouble with your original disciption of the problem but I assume you are tripping out on reset relay which could be other things than motor temp. We have a problem all the time with...
  20. Sorry you were partially right. I was thinking of...

    Sorry you were partially right. I was thinking of exhaust fan failure.
  21. No I"m not , have worked on the same problem...

    No I"m not , have worked on the same problem lately and that was the problem on both units. They had just been started up a few weeks before and was having random diagnostics.
  22. Your drive is not making the pressure switch...

    Your drive is not making the pressure switch quick enough probably. Try increasing minimum speed to 30 HZ and changing your ramp up time to 10 or 15 seconds. I have had to go as high as 33 HZ before
  23. The first place to look for a leak on a chiller...

    The first place to look for a leak on a chiller with an Earthwise Purge is the float in the bottom of the tank. Leaks can be found while the machine is running, or you can isolate the purge and...
  24. Replies
    8
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    1,612

    I had 4 chillers setting side by side that...

    I had 4 chillers setting side by side that starting acting up a year after startup. Came down to construction dust inside of the solid state starter module. Blew them all out and never had the...
  25. Replies
    29
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    3,473

    A little trick I started doing several years ago...

    A little trick I started doing several years ago on some of these units that may have problems is to go in the P4 menu and change the % of condensor pressure setpoint down to 82 from 90. This slows...
  26. Replies
    10
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    988

    For the shoft running season you have I would not...

    For the shoft running season you have I would not put a drive on the Centrifugal. They can be very expensive to repair down the road. Stick with a wye-delta starter.
  27. Replies
    24
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    2,787

    I think the 200 lbs of refrigerant was too much....

    I think the 200 lbs of refrigerant was too much. 200 lbs low in a 400 ton chiller is a lot.You originally had 6.5 degree approach which isn't that bad, depending on design. Take out 100 lbs. and i...
  28. Replies
    14
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    2,340

    Just for your info the Trane and the Carrier...

    Just for your info the Trane and the Carrier drives are made by the same manufactuer, Reliance. Trane just uses a newer version.
  29. Replies
    17
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    2,478

    You could install three phase fan motors if the...

    You could install three phase fan motors if the unit is three phase, Trane had that problem in the 80s and that was the fix.
  30. Replies
    18
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    1,972

    Good post! I have moved from out East to desert...

    Good post! I have moved from out East to desert climate and I have ran into this at least 5 times in a year. It is so dusty out here tha auxillaries have been the problem every time and because of...
  31. Replies
    12
    Views
    1,865

    I recently went through Danfoss training, their...

    I recently went through Danfoss training, their drives can go as low as 6 HZ as long as the motor is rated for drive duty.
  32. Try a Detech, you can find a leak in the wind...

    Try a Detech, you can find a leak in the wind with one of those and you don't have to pull around a cord to power it.
  33. Replies
    13
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    1,753

    Is this unit connected to a Tracker panel that...

    Is this unit connected to a Tracker panel that someone has left in the air balance mode by chance?
  34. Replies
    13
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    1,753

    You must have looked at the wrong download, that...

    You must have looked at the wrong download, that link was to a pdf 160 page book
  35. Replies
    19
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    3,132

    I just talked to the Las Vegas Trane office a...

    I just talked to the Las Vegas Trane office a couple of weeks ago and they have to change all of their condensor fan blades from 3 bladed to 4 bladed because of the high temps. They said the original...
  36. Replies
    28
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    7,713

    Hey Dennis663, Regarding your statement, NO, I'M...

    Hey Dennis663, Regarding your statement,
    NO, I'M NOT NEW TO THE BUSINESS, JUST TO THE JUNK ASS TRANE VOYAGER BULL**** SYSTEMS THAT ARE RIDICULOUS IN THE WAY THEY ARE MADE.

    There is a reason that...
  37. Replies
    4
    Views
    2,868

    Any Trane office should have what you need. Just...

    Any Trane office should have what you need. Just call them and ask them to fax it to you. They shouldn't have a problem with that at all.
  38. Replies
    13
    Views
    3,544

    Are you sure your not over thinking this ? I you...

    Are you sure your not over thinking this ? I you just started working on these machines maybe they don't have a problem. All Centravacs don't have oil return problem. With a good oil seal most...
  39. Thread: RTAA300

    by always looking
    Replies
    14
    Views
    1,687

    I think cold -n- mode hit it on the head. You may...

    I think cold -n- mode hit it on the head. You may have a slide valve sticking in the compressor and it is starting loaded. the high pressure swith cannot react fast enough to stop the compressor in...
  40. Replies
    11
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    1,276

    Regarding the sight glasses, just about all Trane...

    Regarding the sight glasses, just about all Trane CVHEs in the 80s had the option to easily add sight glasses to them. The location you talked about that someone tapped in above the angle valve is...
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