Quote:
Originally Posted by TheDon
Pretty sure the sanden works better with 134A
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You got anything to back up that statement? Compressor doesn't care what it's pumping. ...only the efficiency of the feon/propane/R12/134a or any other medium has anything to do with vent temperature in any given environment.
If there is leak of coolant heated air into the evaporator housing, or the evap' is partially clogged due to internal corrosion etc etc ...causes temperature changes.
Never found a factory fitted a/c to a 123 that performed flawlessly every season and I have serviced around 200 of 'em.
If you live in a state that allows non SNAP 'freon' you can get vent temp's in 108 degree ambient temp's in the 30's depending on blower/engine speed .
Internal corrosion is often the cause of changing performance from one season to another. Design of condenser helps efficiency as does different 'freons'. Common causes of higher than usual vent temp's is recirculation or blend door not closing.
On a Vanagon, the Sandon SD5 or 7 is about as good as a chocolate tea pot to cool the van in any temp's above 80 F....try 134a in that and see if it helps !
I'm always hearing different theories as to why thing don't work as they think they should from folk who have no experience in anything other than the vehicle they own as the gold standard for all others.
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