Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (September 2000, week 1)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:   Mon, 4 Sep 2000 10:07:40 +1100
Reply-To:   David Del Ben <ddelben@AIRINTER.COM.AU>
Sender:   Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:   David Del Ben <ddelben@AIRINTER.COM.AU>
Organization:   Air International Transit
Subject:   Re: D.I.Y. R-134 Kit AC Recharge advice
Comments:   To: "TSmith5041@aol.com" <TSmith5041@aol.com>
Content-Type:   text/plain; charset="us-ascii"

Tom, Would suggest that 'blowing a hose after a while' had nothing to due with the R134a gas. At 60oC [140oF], R134a is ~230 Psi, R12 is ~210 Psi. If she's gonna blow at 230 Psi, she'll also blow sooner or later at 210 psi. Hose blowout would more likely be caused by poor qulaity hoses, poor workmanship, incorrect crimping of hose, etc - any number of factors. What is 80% charge? Don't even have a clue what that refers to so you're going to have to fill me in on that one. Fan will normally run on high. Your getting rid of all that heat in your cabin through the condenser - gotta have air to take it away. Also depends on what the ambient temps are -you didn't mention this? All A/C systems will/should have a High Pressure Cut-out switch to protect against excessivly high pressures. 'Don't leave home without one' Why: 1. You might be running in the Sahara desert and its 60oC (140oF) outside. Your A/C isn't designed to run to those high temps. You'll damage your compressor, blow a hose, develop leaks, take your pick. 2. You might get a newspaper blown in front of your condenser which stops the airflow through it - refer to item 1 for consequences. 3. You might get a blockage in your piping somehow - say goodbye to your very expensive compressor

Need I go on - get a High Pressure Switch. Anymore questions - just email me. I design Bus Air Conditioners for a living.

David Del Ben 85 Vanagon

-----Original Message----- From: TSmith5041@aol.com [SMTP:TSmith5041@aol.com] Sent: Friday, September 01, 2000 1:10 PM To: ddelben@airinter.com.au; vanagon@gerry.vanagon.com Subject: Re: D.I.Y. R-134 Kit AC Recharge advice

Have successfully converted my van's a/c system to R-134A. 1st attempt blew a hose after a while. Had them rebuilt with modern barrier hose. I went with an 80% charge but the hi-pressure switch runs the fan on high a lot. The EPA web site on conversion mentions using a cutoff switch on the compressor to control excessively high pressures. Anyone have any thoughts on or experience with this?

Tom Smith 83.5 Westie


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.