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  1. #14
    Originally posted by jultzya
    Originally posted by r2
    when you get that manifold make sure it displays both r22 and 410. older brutes just come with 22, 502, 11 it think.
    You're not supposed to use the same equipment to service both types of systems.

    One set of refrigerant equipment for CFC-HCFC systems.

    &

    One set of refrigerant equipment for HFC systems.

    are you serious???


    did you happen to read the post by Dave ... the one just before yours?




    I strongly agree with Dave. it's all hype.



    the amount of oil in a set of hoses, gages, is de-minimus, incidental & is therefore inconsequencial.

    unless of course ... your adding oil to a system and the hoses are full of it .... then you tie onto another system which uses a different oil type ...



    and that second system is like ... really really tiny ... and holds maybe 10 oz. of refrigerant ....


    sure. Then you have the potential to upset it's oil charge by five or maybe ten percent .... but unless you work sloppy ... you shouldnt have any such problems.


    in my opinion. anyway.

  2. #15
    Originally posted by R12rules
    but unless you work sloppy ...
    In my opinion "working sloppy" is using the same gauges for both systems.

    I do believe there is something about this in the EPA rules? Is there not?

  3. #16
    Join Date
    Sep 2001
    Location
    East Stroudsburg, PA
    Posts
    13,215
    Originally posted by jultzya
    Originally posted by R12rules
    but unless you work sloppy ...
    In my opinion "working sloppy" is using the same gauges for both systems.

    I do believe there is something about this in the EPA rules? Is there not?
    Nope. It's a terroristic statement made by the mfgs in the 410a "certification" classes. Meant to scare you into buying new gauges.

    Your 3 ton unit holds HOW MUCH oil? A LOT less than a 3 ton unit at -20 evap. I mean, like nearly a gallon less.

    We've been using POE since 1993 or 94. NEVER have I witnessed a "cross contamination" problem.

    Tell me, now, what happens when mineral oil and POE mix.




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