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98 V70 A/C charging V70-XC70 1998

posted by  someone claiming to be kcarl on  Sun May 22 06:25 CST 2005 [RELATED]

Is anyone here familiar with high and low side pressures I should look for on a 98 V70 with r134a refrigerant? The average daytime temp around here is about 80F this time of year. Also, I found the low side port, but where the heck is the high side port located? Mine was not cooling well and the compressor was cycling, so I put just enough charge in to keep the compressor on. I don't want to continue adding refrigerant until I can measure the disharge pressure. This is the first time refrigerant has been added to the system, so I suspect the low charge was normal due to age.

thanks,
kcarl








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    98 V70 A/C charging V70-XC70 1998

    posted by  KlausC on  Sun May 22 10:24 CST 2005
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    There is no high side port.

    Klaus
    --
    98 V70Rawd(108Kmi), 95 854T(88K mi), 75 164E(173K mi)








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      98 V70 A/C charging V70-XC70 1998

      posted by  someone claiming to be kcarl on  Mon May 23 00:26 CST 2005 [RELATED]

      If there is no high side port, how do you accurately top off the charge? Do i have to pull it down and weigh it in? I measured the temps for the evaporator inlet and outlet, but still don't feel good about charging this way.

      thanks,
      Kcarl








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        Volvo Safety V70-XC70 1998

        posted by  jda2000 on  Mon May 23 03:18 CST 2005
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        last visit: Sun Jan 1 21:27 CST 2012
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        Volvo was thinking about safety by eliminating the high pressure port, so that average folks like us DON'T INJURE ourselves.

        Recharging is done thru the low pressure port. The ideal way to recharge is to evacuate the system and recharge with 1.6 lb of freon.

        The second best way is to get yourself an ac pressure gauge to check pressures.
        --
        '88 240, '92 745, '98 v70 John, Tampa Bay








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          Volvo Safety V70-XC70 1998

          posted by  someone claiming to be kcarl on  Mon May 23 05:32 CST 2005 [RELATED]

          Thanks,

          I have A/C pressure gauges and am familiar with their use, but I've never heard of not having a high pressure port to monitor. There are a lot of things that could cause unusually high discharge pressures that could give insight to system problems.

          thanks again,
          Kcarl






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