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- Newsgroups: misc.consumers
- Path: sparky!uunet!walter!porthos!troy!mpb
- From: mpb@troy.uucp (22161-bunz)
- Subject: Re: Air Conditioning
- Organization: Bellcore, Livingston, NJ
- Date: Tue, 21 Jul 92 20:39:03 GMT
- Message-ID: <1992Jul21.203903.20531@porthos.cc.bellcore.com>
- References: <1992Jul20.222849.21220@organpipe.uug.arizona.edu> <Brr3Ap.5J5@news.cso.uiuc.edu>
- Sender: netnews@porthos.cc.bellcore.com (USENET System Software)
- Lines: 56
-
- In article <Brr3Ap.5J5@news.cso.uiuc.edu>, tmkk@uiuc.edu (Khan) writes:
- >
- > In article <1992Jul20.222849.21220@organpipe.uug.arizona.edu> ferng@happy.rc.arizona.edu (Jimmy M. Ferng) writes:
- > >Does any one have any experience with charging freon to
- > >your car and/or home air conditioner? What's the
- > >difference between these two (execpt that the types of
- > >freon are different)?
- >
- > My understanding (as related to me by someone who repairs AC units for a
- > living) is that home AC units should NEVER need recharging. If your AC
- > just doesn't appear to be doing the job, make sure that all the dust and
- > dirt is vacuumed out of it. If it's still not doing the job, you need a
- > bigger air conditioner. If for some reason your home AC has developed a
- > genuine leak, then it's definitely a job for the pros to take care of
- > it.
- >
- > As for car AC, yes these need to be recharged. For some reason, they
- > tend to leak like crazy. You can do it yourself if you are careful. Be
- > sure to get a good do-it-yourself manual for your car before attempting
- > this - if you attach the hose to the wrong side, you could be in for a
- > nasty surprise.
- >
- Home A/C's can require a freon recharge. After 18 years the unit
- had very little freon left. 3 years after it was recharged, it is
- still going strong.
-
- Car A/C's should be just as tight as a Home A/C, but with all the
- shaking that they take, they will develop a leak.
-
- After working on 1 GM, and 3 Dodges :-( I've found that you can
- not connect the freon to the wrong side, the valves are different
- sizes. Also, Inertial Dynamics has developed a can that will
- vent through the bottom it the pressure gets to great. (Isn't
- that nice, now that Freon will not be available after 11/1.)
-
- Any way, a few additional points, the hoses on the low pressure
- side are BIGGER than the hoses on the high pressure side. If
- you have a chance to look at the A/C BEFORE IT DIES, find the
- components that get WET, they are on the Low Pressure side of
- the system.
-
- Be sure to only add the FREON as a gas, i.e., with the can UP.
- Adding as a liquid WILL harm your system, maybe not the
- first time, but eventually it will kill it :-(. You
- may wish to override the A/C clutch, since it will normally
- cut out when the pressure on the LOW side gets to LOW, i.e.,
- nothing there to compress, so why operate. This will spead up
- the recharge time.
-
- Marc
-
- PS. Freon harms the OZONE layer, or so they say. If you try
- playing with it, try not to release too much to the atmosphere
- (i.e., make sure the can is as empty as possible before detaching
- it from the can tapper).
-
-