Air Conditioning Recharge

From: Peter Grace (pgrace@fierymoon.com)
Date: Sun Jun 29 2003 - 17:53:02 EDT


 
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Hey guys,

        I finally was fed up with this hot weather and fed up with
my non-functional A/C system. While I was at walmart
getting wiper blades for Kristy's car, I opted to buy one
of those A/C recharge kits from interdynamics. I got the
kit with the pressure valve on it (Wow, useful little piece
of technology)..

        Anyway, I charged up my system and now finally my A/C
compressor stays on instead of momentarily turning on, then
staying off for a few seconds, then turning back on (I
guess it has to do with refridgerant pressure -- I learn
something new everyday!). The air is, eh, somewhat cool...
 It's not like I'm going to get frostbite, like how it is
in Kristy's Honda. I read something somewhere that if you
overpressurize the system, the AC will not put out maximum
chill. I currently have the charge at about 42-43psi with
the A/C on, which is within the "operational range" of the
gauge (the blue area).

        My question is thus: Do you guys know of the particular
pressure which allows you to achieve maximum cooling?
After driving around for 10 miles or so it was comfortable,
on the side of cool inside the club cab, but, that was 20
minutes... Should it really take 20 mins for the dakota to
get cool from a nice hot day like today? The thermometer
at willow grove says 82F with a relative humidity 54.6% and
barometer at 30.13in. I know that atmospheric conditions
can alter the pressure readings of one of these gauges. My
guess is that in my asphalt parking lot with the sun
beating straight down on the truck, the temperature under
the hood was in the high 90's.

Any suggestions would be appreciated, you guys have helped
me before with a lot of other stuff! Not a day goes by
that I don't learn something new about the care and
maintenance of my baby!

Thanks,
Pete

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