Results 1 to 5 of 5
  1. #1
    Join Date
    Apr 2005
    Location
    Virginia
    Posts
    176
    What is the proper charging procedure on a system that contained a leak in which all ref. was recovered, leak fixed, pressure tested with nitrogen, and pulled a vacuum down to at least 500 microns? Should the system be charged with liquid or charging with just gas ok? On a R-22 system I should say.

  2. #2
    Join Date
    Apr 2005
    Location
    NE PA
    Posts
    698
    Both work, but liquid is sure a whole lot faster.

    Paul

  3. #3
    Join Date
    Mar 2005
    Location
    Louisiana
    Posts
    211
    I charge by method of liquid, if you do charge by liquid go slow with it, don't juice it all at one time, as you may know charging by liquid will charge it up fast so be careful not to grossly over charge the unit.

  4. #4
    Join Date
    Aug 2001
    Posts
    1,936
    if its empty and you still can read the data plate why not just weight the charge in

  5. #5
    Join Date
    Dec 2002
    Location
    davenport, iowa
    Posts
    778
    if system has a king valve, then you can feed liquid into king valve until you get close to the charge level or until it stops taking liquid at a reasonable rate, then trim the charge with vapor or liquid throttled at low side of manifold, if it can't be pumped down and recharged as above, then you can throttle liquid at the lowside of your manifold, but be careful.
    Da Threadkilla

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