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  1. #1
    Join Date
    Jul 2011
    Location
    Arkansas
    Posts
    81

    Different guages for R-22/R-410a?

    How big of a deal is it to use the same guages on different refrigerants? Just got the ak-900 and would like to leave the analogs on the truck for backup only.

  2. #2
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,671
    Most with digital gauges use them on all sytems.

    My 1200s and 900s have had so many refrigerants through them that I've lost count.

  3. #3
    Join Date
    Jul 2011
    Location
    Arkansas
    Posts
    81
    Thats what I wanted to hear.

  4. #4
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    i used to have a seperate set for both when i used el cheapo analogs ... ak900 for all referigerants ... only thing i switch is my hoses to 3's depending on if its a small fractional HP system or leave on my 5's for larger stuff ...... but im even debating on stopping that because im wondering if its a huge difference

  5. #5
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,671
    Quote Originally Posted by hvac wiz 79 View Post
    i used to have a seperate set for both when i used el cheapo analogs ... ak900 for all referigerants ... only thing i switch is my hoses to 3's depending on if its a small fractional HP system or leave on my 5's for larger stuff ...... but im even debating on stopping that because im wondering if its a huge difference

    It amounts to approximately 1 ounce of liquid r-134a per 3 feet of hose, by the way.

  6. #6
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    so about the .3 oz per foot thats been beaten into my noggin ... what about gas side or is that minimal ?

  7. #7
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,671
    Quote Originally Posted by hvac wiz 79
    so about the .3 oz per foot thats been beaten into my noggin ... what about gas side or is that minimal ?
    I don't have a number, but I wouldn't figure it into any charging computations.

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