[Vwdiesel] Holy Cow! It works!!

[Dave Cook]

True, but the wire I used to signal the relay is the one that was originally connected directly to the compressor.  So if there is a pressure switch somewhere in there it should still be able to cut out the compressor (by stopping the signal to the relay).

Dave Cook

--- On Wed, 7/13/11, Erik Lane <eriklane at gmail.com> wrote:

From: Erik Lane <eriklane at gmail.com>
Subject: Re: [Vwdiesel] Holy Cow! It works!!
To: "Dave Cook" <davevw at yahoo.com>
Date: Wednesday, July 13, 2011, 2:06 AM

I'm not sure about that specific circuit, but many times there will be a high pressure cutout switch, and a low pressure cutout switch in the circuit to disable the compressor when there's either too much or not enough refrigerant in there. Operating it without the switch, if it was designed to have one or more of them is just asking for trouble.


On Tue, Jul 12, 2011 at 7:01 PM, Dave Cook <davevw at yahoo.com> wrote:

At least, it did a little bit ago.  (Keeping my fingers crossed...)



The Banana Rabbit has air conditioning!



Back when I was bitching about the belts, I was also trying to get the A/C to work.  I did not want to spend lots of money trying, but I was willing to blow 35 bucks on one of those r134a retrofit kits to see what happened.




Well, when I hard wired the compressor to the battery to get it to suck in the refrigerant, it blew cold.  So I was optimistic.  But when I hooked it up to the car's wiring, the fuse blew, pretty quickly.



But, there were no sparks or any craziness when I had it hard wired.  So I ran a wire between the compressor and battery with a fuse clamped in between.  It worked again, and that fuse didn't blow.



So I have used the wiring from the switch to trigger a relay that turns on the compressor.  Took it for a test drive, and it seemed to work just as it should-turned on when it should and turned off when it should, and blew cold air.




I don't know why the compressor is blowing the car's fuse, but it seemed to hold OK with a 5 amp fuse before the relay so I guess I am not going to worry too much.



Now, if the belt dressing will kill the occasional squeal that is still present I will be a happy camper indeed!



Dave Cook

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