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  1. #1

    Determine type of refrigerant in system.

    I received a call to install two new condensers. The previous were stolen from the home. On one of the coils it states that its designed for R22 or 410a. How do I determine what refrigerant was used in the past?

  2. #2
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    you have a problem..... if there is no refrigerant left who knows......
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  3. #3
    Join Date
    Oct 2002
    Posts
    1,358
    oil smells diferent POE vs Mineral. Maybe smell line set. If TXV equip, that will tell you.

  4. #4
    Join Date
    Jan 2010
    Posts
    6,398
    Quote Originally Posted by linepath View Post
    I received a call to install two new condensers. The previous were stolen from the home. On one of the coils it states that its designed for R22 or 410a. How do I determine what refrigerant was used in the past?
    On the coil marked 22/410 I would go with 410. The c/u will come with gas that is a whole lot cheaper. What about the second coil ?

  5. #5
    Join Date
    Oct 2002
    Posts
    1,358
    Although marked 410, it may be with mineral oil. Must be flushed because you don't know what was in it.
    Personally, I think the manufactures are alarmist with POE/mineral mix, but I am not warrantying compressors either.

  6. #6
    Join Date
    Jan 2010
    Posts
    6,398
    Why would anyone go with R22 these days ?

  7. #7
    Join Date
    Jun 2013
    Location
    New York
    Posts
    11
    If it has an expansion valve check that. But your best bet would be 410 after cleaning the system.

  8. #8
    Join Date
    Jun 2013
    Location
    NORTHERN
    Posts
    991
    Quote Originally Posted by drz View Post
    If it has an expansion valve check that. But your best bet would be 410 after cleaning the system.
    Nothin' like a lil' epoxy paint thinner in a pressurized can for "refrigeration flush"...
    (do not breathe nor on skin get, it)

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