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+--- Thread: WAS Re: Over heating -- followup and question NOW: A/C R134 (/showthread.php?tid=3390)
WAS Re: Over heating -- followup and question NOW: A/C R134 - Jay Darst - 09-09-2006 12:10
Had my chasis a/c switched to R134 3 years ago. Takes 38oz of R134
to charge it.
The update to R134 consisted of replacing the oil, the dryer and the
expansion valve. Recharge with 38oz R134 and works great.
The spring has always required a recharge. This year my machine
recovered 12oz. while e-vacuating. Recharged with 38oz of R134 and
it has worked GREAT all summer. My low side pressure is 20-40psi and
high side has reached 280psi(at an outside temp of 85)
I am no expert, so I don't know if those are the correct pressures,
it does work good at those pressures though.
The chasis air does a very good job of cooling the pilot and co-
pilot, keep it working.
We have introduced the green dye into the system the last 2 years.
Have not been able to find a leak. The leak must be either outside
in the weather or in a spot I can't see.
Fortunately, we have a/c equipment that is too SIMPLE to use, its
virtually automatic. Just tell it how much oil and how much R134 you
want in the system, and it automatically starts a vaccum, stops and
checks for a loss of vaccum(about 10 minutes) then starts
introducing R134 and oil until the amount specified is reached.
Pretty easy.
Jay Darst
85PT40
Spfld, IL
--- In WanderlodgeForum@yahoogroups.com, "Mike Hohnstein"
<MHOHNSTEIN@...> wrote:
>
> The dye is green, and I believe it will glow with black light.
It's easy to spot and will show a leak easily. It's normal to add
freon bi-annually.
> MH
> ----- Original Message -----
> From: Pete Masterson
> To: WanderlodgeForum@yahoogroups.com
> Sent: Friday, September 08, 2006 7:20 PM
> Subject: Re: [WanderlodgeForum] Over heating -- followup and
question
>
>
> Jerry,
>
> Good info... I'm not aware exactly what the shop did to test the
> system... he stated that he did not find any leaks -- and said
> something about 'dye' in the system.
>
> I can get the gauges, etc. and will learn how to keep the system
> charged up. As you say, small leaks aren't uncommon.
>
> Pete Masterson
> aeonix1@...
> '95 Bluebird Wanderlodge WBDA 42'
> El Sobrante, CA
>
> On Sep 8, 2006, at 4:06 PM, Jerry wrote:
>
> > Pete, did they evacuate the system and make sure it would hold
a
> > vacuum for
> > at least 30min? If so, you most probably have a small leak
which
> > is not
> > uncommon. I would certainly keep it charged up and operating.
> > When and if
> > it leaks down again, R134a is about $5.00 for a 12oz can at
WalMart
> > and you
> > can charge it back up yourself. Get yourself a good set of
gauges,
> > SnapOn
> > sell a good set, and check the pressures with it working
correctly,
> > you'll
> > then know where they should be if outside temps are close. I
would
> > primarily just keep the suction pressure at the correct
pressure.
> > There are
> > some good sites on the internet that can bring you up to speed
on
> > maintaining and repair of these systems.
> >
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
WAS Re: Over heating -- followup and question NOW: A/C R134 - Pete Masterson - 09-09-2006 12:56
Jay,
What A/C service equipment are you using and where did you get it?
Thanks.
(Now that my system has been serviced and recharged, I expect to be
keeping it serviced myself.)
Pete Masterson
aeonix1@...
'95 Bluebird Wanderlodge WBDA 42'
El Sobrante, CA
On Sep 9, 2006, at 5:10 PM, Jay Darst wrote:
<snip>
>
> Fortunately, we have a/c equipment that is too SIMPLE to use, its
> virtually automatic. Just tell it how much oil and how much R134 you
> want in the system, and it automatically starts a vaccum, stops and
> checks for a loss of vaccum(about 10 minutes) then starts
> introducing R134 and oil until the amount specified is reached.
> Pretty easy.
>
> Jay Darst
> 85PT40
> Spfld, IL
>
[Non-text portions of this message have been removed]