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  1. #1
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    trane cga 70 oil

    One of our customers hired a new maintenance guy to work on their chillers last week. Yesterday he swapped compressors out on circuit 1 idk why with one form a old chiller.

    Today I got a call for the whole chiller being out. Circuit 2 grounded on 2 phases he added 2 gallons of oil last night and the sight glass was way over filled and I drained over a gallon of oil out before I even saw a line on the sight glass. Could that much oil kill a compressor over night?

    Also circuit 1 was grounded today also but I didn't check it much as I have new cule what or how the maintenance guy did it other then he uesed a belt driven vacuum pump that was his dads and did not ues a micron gauge

    I last woked on this system last week for a control issue that I fixed and it was working good holding the water at 45f and my pressures where right on the money and my oil was nice and clean not charcoal black like today.

    The facility manager wants me to make a report on what I found and if the oil could have killed compressor 2 over night.

    So I know to much oil can damage a compressor but can it kill it over night I have never had someone tell me they aded 2 gallons of oil before.

    Also what is the factory charge for oil? Im waiting for a trane rep to call back but dont have much hope now thats its after 5

  2. #2
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    Hard to say what happened from here and no compressor or unit model numbers.

    As for overnight...many compressors can hang on to the cliff by their fingernails for years. All they need is a little push.

  3. #3
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    Quote Originally Posted by jayguy View Post
    Hard to say what happened from here and no compressor or unit model numbers.

    As for overnight...many compressors can hang on to the cliff by their fingernails for years. All they need is a little push.
    compressor # is a crhr350a2ha-0
    uint cgacc706rjnjg42cfg wm

    also as for hanging on by fingernails last weak it ohmed out right how it should be, wasn't making any odd noise, smooth not much vibration pressures where good, good oil pressure, super heat and subcolign where good, amp draw was even and good across all winding's, oil was nice and clean. nothing to idcated that the compressor was worn or about to fail and while stuff does just happen losing 3 working compressors in 1 days doesn't happen to often. i guess i should recover the gas and open up the compressor and see what failed

    also last week on another chiller it lost 2 compressors and a 120 pound 22 charge over the weekend and i could not find any leaks under 250psi of nitgion and i looked at it Friday and all 3 compressors where running and suction was i think 65ish and this same new guy they had out there said it needed oil but it wasn't low and the oil psi looked good so it looked to be a faulty oil probe so i tuned it off said il be back Monday get their Monday and no gas safety's are bypassed so it would keep running 2 compressors down ect.

    this is why the facility manager wants me to tell him if that much oil would kill it and why he would even add that much oil. i couldn't come up with any reason to add that much oil to a non leaking system unless i do a oil change can any of you? the manger asked me if i thought the guy knew what he was doing and i said i didn't think so and that's when he said write a report up

  4. #4
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    you are stuck between a rock and a hard place. if you say the maintenance guy f'd it up (but they don't get rid of him), you might not get a very warm reception any time you show up.

    and yet, you really can't prove he did it. i would write up what i found and how it was. let the chips fall where they may.

    oil quantity for the 350 is 20 pints or about 2.5 gallons.
    Have you ever noticed that geese walk around like they are drunk and trying not to get a public intox ticket?

  5. Dislikes rquave33 disliked this post.
  6. #5
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    Gotta get me some of that nitgion �� is it good fur leek chek n
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    In the garage , greasin', oilin' . tweakin' n shinin' Roll on spring 2015 !!

  7. #6
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    Quote Originally Posted by Healey Nut View Post
    Gotta get me some of that nitgion �� is it good fur leek chek n
    i love people that post stuff on any forums about spelling all it does is make you look like an ass you knew what i was saying and if you didn't have any thing productive to say why say it?

  8. Likes manny238 liked this post.
  9. #7
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    Quote Originally Posted by rquave33 View Post
    i love people that post stuff on any forums about spelling all it does is make you look like an ass you knew what i was saying and if you didn't have any thing productive to say why say it?
    I'm to high on my Nitgion to be goaded into an argument
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    In the garage , greasin', oilin' . tweakin' n shinin' Roll on spring 2015 !!

  10. Likes manny238 liked this post.

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