Yes, at the molecular level, an A/C system leaks a little. Although it may
take 20 years to leak
enough to affect correct operation. Vehicles tend to leak more than
stationary systems because of
vibration and the compressor shaft seals being exposed to the atmosphere.
Boy does that tick me off. Only 20 years. That means the A/C system in
my 88 Nissan Maxima only has about 4 more years. Well it's worked
flawlessly for 16 years so I guess I shouldn't be too unhappy.
All do to a degree...what degree depends on several factors.
Your home system, leak free, will leak, but if its truely what we call in
the trade leak free, the unit will die, you will be be long gone, as will
your kids, your grandkids grandkids, before a pound leaks out.
Automotive...leaks more...and brand new vehicles can, and do leak, but not
due to poor design, but due to the fact that no one is perfect, and O-rings
are the more common seal on the 134A units and they tend to leak, due to
inconsistansies due to human error in manufacturing, and assembly.
I've found that all vehicles leak enough to need adding
refrigerant every year or two.
Building AC do leak, but much more slowly, if they are well
made and well installed.
Window units do leak, but seldom.
I own a home I bought in 1982. It had central air when I bought it. I don`t
know when the central air was installed but here it is 22 years later and it
still cools the house like when I first bought it. Have never had to have it
re-charged. I don`t know if this makes any difference, but I don`t turn off
the outside condenser in the winter or ever.
Last summer I gave a way a Philco window shaker, 5,000 Btu. It was still
working after 38 years that I know of. It was my in-laws before they were my
in-laws. Damn, that thing was heavy.
this is Turtle.
The ideal of a Brand new Lexus [ per say ] Leaking enough to effect it in a normal
life of the auto [ say 10 years ] is not true at
all. All Autos of every kind do leak but not how you would think it would. For Autos
: There is no such thing as a perfect No Leak
Freon hose, No seal ever made for the compressors that does not leak, No O-Ring made
that does not leak, and Last of all there is no
Compressor made that does not leak. When I say leak , I'm saing that you can not stop
freon from leaking from any system but the
leak rate is so small that it will be about 100 years before the system can leak
through a perfectly system to effect it. If it
would leak down in 10 or 15 years you have a defect in the system to let it out. If
it would leak out in about 100 years you have a
good leakless system.
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On 27 Apr 2004 12:04:28 GMT, firstname.lastname@example.org (TOM KAN PA) wrote:
If a home system leaks enough to need gas added then it has a problem.
The units don't have to move so they can use all copper lines that are
sweated together and the motor is inside the compressor so the
compressor shouldn't leak either.
On a car the compressor is belt driven so you have a shaft going
through a seal with high pressure gas on one side. Eventually this
seal is going to fail. Also the vehicle system uses rubber hoses and
o-rings so the engine can move around and to make service easier.
Automotive systems are advanced enough now that they can go upwards of
ten years without loosing enough coolant to make a difference.
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