The low temp cutout may have different settings, but that is most likely a
result of the diferent refrigerants used, r12 vs 134a, Your 83 may still
run at 40, but there is a temp close to that where it will no longer engage.
They all had low temp cutouts for the very reason I mentioned. Or, the low
temp cutout may have been by-passed or is not working properly. Take it out
on a cold frosty morning and run the ac and let us know what happens.
I'm a mechanic by trade (inter-provincially licensed) and worked in the
field in the 70's and 80's and never saw a compressor cycle in temp below 35
to 40 F. Up here in the frozen north of Canada we use our defrost a lot and
they would engage the compressor in the mild weather, but have never seen a
compressor run in the cold.
Not sure what it has to do with buying a 3 gal toilet tho...
<MajorDomo@mailcity.com> wrote in message
news:41C78DD7.991EF9E3@mailcity.com...
> You certainly are entitle to your own opinion. The AC on my 83
> Continental will run below 40 degrees but not my 2005 Lincoln LS
> or my 2003 Mustang GT. Go try a buy a three gallon toilet or a
> new model top loading washing machine in the US today.
>
>
> mike hunt
>
>
>
> Steve G wrote:
> >
> > No it's not!
> > AC systems have always had low temp cutouts on them, and it's not idiocy
for
> > the above poster. The ac is called for anytime the defrost is selected
on
> > most cars but is prevented from cutting in below 40 F because below that
> > temp the gaseous refrigerant will liquefy and as we all know you can not
> > compress a liquid. It cuts it out so that your compressor doesn't smash
to
> > little bits trying to compress liquid refrigerant.
> > Short lesson in refrigeration, compressor draws in low pressure gas,
pumps
> > out high pressure gas. High pressure gas condenses into a liquid under
> > pressure in... what else but the condenser (that other rad in the front
of
> > your car). High pressure liquid is metered/sprayed into the evaporator
> > where it becomes a low pressure gas again and so on.
> >
> > For the OP, cars with persistant high humidity situations sometimes have
> > water leaks that may not be apparent. I had a Supra that leaked water
at
> > the hatch. Windows seemed to fog easily. Discovered one day that the
spare
> > tire well was half full of water.
> > Steve
> > <MajorDomo@mailcity.com> wrote in message
> > news:41C78298.78A50057@mailcity.com...
> > > The deactivation on newer domestic and automotive AC's, at 40
> > > degrees, is a federal regulation intended to save energy. Same
> > > as the limit on water capacity for toilets and the latest washing
> > > machines sold in the US. Your government at work.
> > >
> > >
> > > mike hunt
> > >
> > >
> > >
> > > "Gary L. Burnore" wrote:
> > > >
> > > > On Mon, 20 Dec 2004 15:43:59 -0500, Abeness <news@nada.x> wrote:
> > > >
> > > > >C. E. White wrote:
> > > > >> Unfortunately most A/C systems don't run once the
> > > > >> temperature drops below 40 degrees Fahrenheit.
> > > > >
> > > > >I don't believe this holds true for automotive systems. On my old
> > > > >Pontiac the A/C was directly tied to the defroster setting--switch
the
> > > > >system to defrost, and the A/C was activated.
> > > >
> > > > It depends on the make/model. My cressida shuts the A/C off if you
> > > > turn the inside temp past 75%.
> > > >
> > > > >Good way to keep the compressor oils circulating to keep the seals
> > lubricated, in addition to
> > > > >removing condensation. Worked at any temp, as I recall, and I move
> > > > >around NY/New England.
> > > >
> > > > It does help with condensation. There's no doubt about that.
> > > >
> > > > >I'll confirm this on my new 94 Civic in a few days, as it has now
> > gotten
> > > > >cold enough around here to check. Disabling it below 40 degrees
would
> > be
> > > > >idiocy--it's the only way to remove condensation effectively.
> > > >
> > > > I'm pretty sure that even in his case, it's the temp you set the
> > > > control to and not the outside temp.
> > > >
> > > > >It is true, however, that many room A/Cs don't function when the
> > outside temp
> > > > >is "too low"--which occasionally annoys me.
> > > >
> > > > There's a way to fix that, put a plastic bag over the outside of the
> > > > A/C after poking several holes in it. (The bag, duh).