Condensation removal....

I always forget that part. The heater gets going and evaporates the water
from around our shoes and mats, then the moist air hits the not-yet-heated
windows.

Mike

 

I always forget that part. The heater gets going and evaporates the water
from around our shoes and mats, then the moist air hits the not-yet-heated
windows.

Mike

 

what about leather seats...does that add to the condensation?I have leather
and this is my first winter with the car.I find it gets a little humid in
there also

 

what about leather seats...does that add to the condensation?I have leather
and this is my first winter with the car.I find it gets a little humid in
there also

 

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

 

Floor mats for sure. Damn things.

 

Floor mats for sure. Damn things.

 

I don't see a difference between leather and cloth in that respect.
Are your seats moist when you get in?

BTW, if I ask nicely, would you please not top post?

 

I don't see a difference between leather and cloth in that respect.
Are your seats moist when you get in?

BTW, if I ask nicely, would you please not top post?

 

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

 

Newer != most, top poster.

 

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

 

Thanks. We had that very issue with this car (89 Toyota Corolla). The
spare tire well filled with water shortly after we bought the car. It
[water] was coming in from the rear lights which were newly installed
(without sealant). Fixed that problem.

No AC in this car. So, unfortunately, with where we live (Northwest Oregon)
and the amount of rain we get and how cold it is here until, like, next
August -- LOL -- we'll just have to deal with it. Floormats are a must in
this wet area. SO they're stayin'.

I will try Anti-Fog wipes. Will see how those work out. Rainex works great
in this area. I know that much. But that's the outside. And the wipers
work fine getting that "condenstation" off the windows.

Aaron

 

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...

 

It does apply to automotive A/C.

In fact, A/C systems start cycling the compressor at no less than 38 degrees
F. SO... when the air coming into the evaporator reaches this low
temperature, the compressor is cycled or shut OFF if the air temperature
entering the evaporator continues to drop. Otherwise the evaporator would
become a block of ice, which would prevent any air from reaching the heater
core (in nearly all cases).

 

Where did *you* read that it's a Federal Regulation about cutting A/C at 40
degrees? And don't give me that "go look it up BS."

 

About a year ago, I did have to replace one of our toilets. Bought a new
Kohler. They play all sorts of timing, level, and displacement tricks to
limit the flush volume to 1.6 gallons. But after you "change things" and
since the tank size permits more water storage, the flush can easily be
increased to just under 3 gallons. Want a used 5 gallon flusher? LOL

And you are COMPLETELY in error about buying a top loader washing machine.
They dominate by wide margin. Front loaders are the in the small minority
of units sold.

 

Has nothing to do with the refrigerant. Has solely to do with the
temperature water freezes at ... 32 degrees. Since in most cases, all air
flows thru the evaporator and then to or past the heater core, were the
water on the evaporator be allowed to freeze solid, no air would flow out of
any of the plenum chamber outlets.

 

Just Newspaper on it's own does a fair job, without smears if the
windows are only a little grubby on the inside too. And you can dry a
slightly damp window with Newspaper and clean it at the same time.

One tip, alcohol based de-icers for the outside of glass can actually
cause misting on the inside because they change temperature so quickly
the condensation forms from moisture in the car. You'll get less
condensation if the glass is scraped without de-icer (unless it is so
hard you can't shift it).

 

Just Newspaper on it's own does a fair job, without smears if the
windows are only a little grubby on the inside too. And you can dry a
slightly damp window with Newspaper and clean it at the same time.

One tip, alcohol based de-icers for the outside of glass can actually
cause misting on the inside because they change temperature so quickly
the condensation forms from moisture in the car. You'll get less
condensation if the glass is scraped without de-icer (unless it is so
hard you can't shift it).