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  1. #1
    Join Date
    Mar 2005
    Location
    Lexington, NC
    Posts
    62

    23 XRV Oil issue

    Went on a call on a 23xrv tripping on low oil. Got there and saw it had been reset 4 times..... Found the oil level half way in the strainer glass. Added oil and started the machine, oil pressure was good at 32psi and watched the vaporizer. Ball valve opened up and vaporizer had good flow, sight glass from vaporizer to oil sump was showing oil flow. Oil sump started getting cold and drain line from the bearings got cold enough to sweat. I noticed bubbles in the strainer glass and oil pressure started to drop. Machine tripped on low oil pressure within approx 15 mins. I noticed an empty 5 gallon can of oil in the room but the maint guy is new.

    Cond in 85
    Cond out 92
    Evap in 56
    Evap out 52
    Saturated evap 42
    Saturated cond 89

    High evap approach and noisy compressor plus running at 75% but max amps was telling me oil logged evap.

    This machine probably has 3 oil charges in it now.
    I suspect a blown oil seal. What do you guys think?

    Any help would be greatly appreciated.

  2. #2
    Join Date
    Jul 2009
    Location
    In a mechanical room....
    Posts
    1,886
    Do you have any other faults in the history?
    “It takes courage to grow up and turn out to be who you really are.”

    - E.E. Cummings

  3. #3
    Join Date
    Mar 2005
    Location
    Lexington, NC
    Posts
    62

    Faults

    It had some condenser approach alerts and some low evap temp alarms from back in the winter.
    The maint guy did say the screen in the tower got clogged but no high pressure trips.

    Thanks for your response.

  4. #4
    Join Date
    Oct 2011
    Location
    La.
    Posts
    269
    I hate to say this, but you may be in over your head if your throwing a lifeline out here on this chiller. I would call Carrier and have them come and repair. This chiller is a critically charged unit, in regards to oil and refrigerant. This chiller does not use oil like a regular screw. Alot of variables with this unit running properly. Tell the customer to stick with one service provider as well, whoever it may be. If you do choose to jump in, remove and distile the gas and oil first. Then start your troublshooting.

    Good luck, with whatever route you choose.

  5. #5
    Join Date
    Aug 2002
    Location
    Greenville SC
    Posts
    421
    Spinning is correct. The problem is probably with the vaporizer.

  6. #6
    Join Date
    Mar 2005
    Location
    Lexington, NC
    Posts
    62

    XRV

    Vaporizor was ok, heater was working and valve was working with correct temps.
    I always try to learn from others experience after all thats what this forum is supposed to be about. Even after more than 25 years in the field I still have a lot to learn.

    Come to find out when I pulled the strainer out it had some plastic in it. I believe there is a bulletin out there somewhere about it.


    Thanks for replies.

  7. #7
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,667
    Quote Originally Posted by reefermadness View Post
    Vaporizor was ok, heater was working and valve was working with correct temps.
    I always try to learn from others experience after all thats what this forum is supposed to be about. Even after more than 25 years in the field I still have a lot to learn.

    Come to find out when I pulled the strainer out it had some plastic in it. I believe there is a bulletin out there somewhere about it.


    Thanks for replies.
    Sorry to say I didn`t see any SB referring to a strainer.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

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