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  1. #1
    Join Date
    Jan 2019
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    Winter chiller shutdown

    Trying to reclaim the refrigerant out of a York screw chiller. It’s been a few months since it was winterized. Factory charge says 192 lbs per circuit (2 circuits). Could or would most of the charge be found in the the oil seperator ?

  2. #2
    Join Date
    Aug 2002
    Location
    Southold, NY
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    19,137
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    That would have to be one big separator

    What refrigerant?
    Why are you trying to remove it?
    Is the oil heater on?

  3. #3
    Join Date
    Jan 2019
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    Thread Starter
    Quote Originally Posted by pecmsg View Post
    That would have to be one big separator

    What refrigerant?
    Why are you trying to remove it?
    Is the oil heater on?
    Hahah yea I figured it couldn’t hold that much , 134a
    We are changing the pressure relief valves
    No oil heater

  4. #4
    Join Date
    Jul 2018
    Location
    Wisconsin
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    496
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    Wait till the next polar vortex. -10f or so just do a quick

  5. #5
    Join Date
    Aug 2006
    Location
    Mixing oil and fire with a big spoon.
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    Have you opened and locked the flash tank valves?
    Don't step on my favorite part of the Constitution just to point out your favorite part.

    Political Correctness is forced on you because you have forgotten decency.

    Technically speaking, they are all heat pumps.

  6. #6
    Join Date
    Apr 2003
    Location
    St. Louis
    Posts
    851
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    Is it in a unheated room?

  7. #7
    Join Date
    Jan 2019
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    4
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    Thread Starter
    We opened and locked out the flash tank valves and it’s an air cooled chiller so it’s outside on the roof. As we changed one of the pressure reliefs we found oil under some of the insulation sure enough there was the slightest leak we think it’s been leaking for quite some time

  8. #8
    Join Date
    Nov 2011
    Location
    East Side
    Posts
    5,384
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    refrigerant will migrate to the coldest point, unless there is a valve to stop it.

    BUT it doesn't matter where it is in the system, if you do a proper recovery, you will get it all out.

    once you hit zero psi, start looking for frosted sections of pipe, frosted oil separator, flash tank, compressor, etc. etc. if you see frosting, you know there's refrigerant boiling off.

    or you could just cool the entire machine to -41.5*F, and change all of them without recovering!

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