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  1. #1
    Join Date
    Aug 2007
    Posts
    12

    Carrier Chiller lost it's oil

    I'm a small contractor that was asked to look at a Carrier centrifugal chiller in a hospital, Carrier got the job to repair. My question is, there was no oil in this machine that should of had 8 gal of PP47-31 polyester oil. Maintenance stated that there were a couple of power outages one evening due to a thunder storm. When they noticed something was wrong, the machine was making very loud noises. Said they thought it was single phazing, it has phaze protection. When Carrier fired the machine, maintenance said it was making a grinding noise. Carrier has a job on their hands, but where could the oil have gone to? In the evaporator barrel? Carrier / Model# 19XRT6363382CPH64S / R-134A

  2. #2
    Join Date
    May 2001
    Location
    Western Wa
    Posts
    1,832
    The oil is out in the condenser and evaporator, if it isn't on the floor. Did it get cold started after the power outage?
    God Bless our Veterans

    God Bless the USA

  3. #3
    Join Date
    Aug 2000
    Location
    USA
    Posts
    4,990
    19XRT, big bucks to repair, only a handfull out there. It's no longer made.
    Your poor planning does not constitute an emergency on my part!!!!

  4. #4
    Join Date
    Aug 2002
    Location
    Southold.calm
    Posts
    5,588
    Like Randy S. said the oil is probably in the condenser. The question is why. Short power outages should not cause this. Being a hospital they probably screwed it up somehow and are looking for an excuse.

    Running with no oil & noisy listen to absrbetek. Big $’s

  5. #5
    Join Date
    Sep 2002
    Posts
    12,277

    How did it run with no oil pressure ?

    How did that happen?
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

  6. #6
    Join Date
    Feb 2007
    Location
    Northern Ontario
    Posts
    128

    condenser

    short cycles will throw it all out in the condenser and not give it time to return sounds bad though

  7. #7
    Join Date
    Jul 2006
    Location
    The Great country of Texas
    Posts
    429
    "Turn out the lights, the check book is open!"
    "I'm from Texas, what country are you from?"

  8. #8
    Join Date
    Aug 2006
    Posts
    2,593
    What I know about centrifugal chiller you could probably write on the head of a pin, but I'm betting the phase monitor isn't O.E.M. Someone replaced it with an O.T.C. because the factory one was just too expensive.

  9. #9
    Join Date
    Jul 2006
    Location
    The Great country of Texas
    Posts
    429
    It has a ISM module that does protection. Should have taken it off.
    "I'm from Texas, what country are you from?"

  10. #10

    Smile

    If the power outage with a long time and the water temperature is high. The refrigerant will mix into the oils. After you re-power the control. the refrigerant will come out from the oil by the oil heater heating the oils. But if too much refrigerants mixed into to the oils, the oils will evaporate to the cooler and condenser on this moment. Is no ome check the level and fill the oils to correct oil level and re-start the chiller. The thrust bearing will damage at the first time!
    Can

  11. #11
    Join Date
    Oct 2008
    Posts
    171
    If the chiller was restarted with cold oil temp, someone is buying a bearing job.Ouch! I'd have though a low oil pressor/ low oil temp sensor would lock it out though. Maint. people have a nasty habit of jumping out system safety devices.
    Old, Bald and Cranky

  12. #12
    Join Date
    Sep 2008
    Location
    Delaware
    Posts
    243
    These machines (and other brands) have oil loss protection controls installed as standard issue. It sounds like someone tried to force the unit back on line when it wasn't ready. It will be interesting to see what is found during the repair. Keep us posted.

  13. #13
    Join Date
    Mar 2008
    Location
    Northeast
    Posts
    128
    Quote Originally Posted by WLAC View Post
    I'm a small contractor that was asked to look at a Carrier centrifugal chiller in a hospital, Carrier got the job to repair. My question is, there was no oil in this machine that should of had 8 gal of PP47-31 polyester oil. Maintenance stated that there were a couple of power outages one evening due to a thunder storm. When they noticed something was wrong, the machine was making very loud noises. Said they thought it was single phazing, it has phaze protection. When Carrier fired the machine, maintenance said it was making a grinding noise. Carrier has a job on their hands, but where could the oil have gone to? In the evaporator barrel? Carrier / Model# 19XRT6363382CPH64S / R-134A

    Is this in Brockton?

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