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-   -   Do you add 30 410a freon pressure like you do r22 and r12 for high side pressure in c (https://www.askmehelpdesk.com/showthread.php?t=154040)

  • Nov 19, 2007, 11:45 PM
    jacob1123
    Do you add 30 410a freon pressure like you do r22 and r12 for high side pressure in c
    Do you have to add 30 to the ambeint air temp. like you do for r22 and r12 to R410a freon to get the proper high side pressure reading
  • Nov 20, 2007, 05:49 AM
    tsa7man
    No... because the condensers are more efficient, closer to 25 degrees, if you have a TXV, look to the ID label (or unit specs) for the proper cond. Sub cooling... and charge to that... and don't forget R-410a is ALWAYS charged as a liquid into the suction side, be sure to use a charging adapter, or bleed it slowly to flash back in your gage set to a gas as you charge..

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