Re: Loading R12 in A/C system

["Steve's" <srubano@xxxx>]

Hi all, Sorry if I did this wrong this is my first time posting. François,
you have to get the system "vacuumed" out after you've emptied the system.
This process gets all of the air out of the system. The AC compressor will
not go on unless there is the right amount of pressure in the system, this
is controlled by a safety pressure valve. If you have any air in the system,
naturally you are not going to get anywhere near the pressure required to
activate the switch and allow the compressor to come on. The A/C shop you
brought it too should KNOW this! if the do not, I strongly recommend you
bring it else where, tell them exactly what work you had done to the system,
tell them you need a vac and fill on the A/C system.

You wrote:

Message: 4
Date: Sun, 30 Jul 2000 11:26:58 -0400
From: François Laplante <laplanca@xxxx>
Subject: Re: Loading R12 in A/C system

Last week, we changed the A/C compressor's seals to get it air tight.

When completed, we brought the car to an A/C shop to replenish on R12 (I
know it is expensive...)
But after trying to load the gaz, the mechanic stopped because the
compressor would not start, and he could not mesure the pressure without the
compressor starting...

The problem is that the compressor would not work without gaz pressure... So
the mechanic refused to replenish the system!


So what is the usual procedure to load R12 gaz after you emptied the system?


François Laplante
VIN: 17145


PS: Thank you all for your ideas on my fan problems: Fanzilla was installed
and every thing is o.k.