It's my understanding that this procedure is required if you're running blended refrigerants like Freeze-12, but I think both R-12 and R-134a can be topped up. I fill my A/C based upon the system pressures rather than refrigerant amounts. On 9/6/06, trooz <trooz@adelphia.net > wrote: > > I was told that one cannot simply add 134-A to a cooling system that's > only > blowing about 57 degrees. They said the system had to be totally > evacuated > and then filled with a precise amount. Anyone know about that? I've > always > had Freon added in the past (it's been R-12 until a few months ago when I > had the system converted to 134-A). Is this something peculiar to 134-A > or > just peculiar to this shop? They're talking close to a couple hundred > dollars to do it. > Casey Olympia, WA Biodiesel: "I drive in a persistent vegetative state" '87 300TD intercooler #22 (218k) '84 300D (216k) Gashuffer: '89 Vanagon Wolfsburg Edition (187K) http://users.zhonka.net/zeitgeist/Misc/IMG_0171.JPG |
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