Is there any downside to rapid cycling of the AC compressor?  I
believe that some AC systems do not like to be turned on & off
rapidly, at least I'm pretty sure I've seen such warnings on home ac
units...   "Wait at least 3 minutes before turning back on".       Or
am I thinking of video projector bulbs? :-)

On May 27, 2007, at 10:33 AM, John Bange wrote:

> Yesterday, while rocketing down the freeway and into somewhat hilly
> terrain,
> I found myself repeatedly having to reach over to twist the AC
> thermostat to
> "off" in order to maintain a speed of 75mph when going uphill.
> After the
> fourth or fifth time, it occurred to me that it would be handy if
> the full
> throttle enrichment switch would also disengage the AC compressor
> clutch. Of
> course, since the Digifant full throttle switch does double duty as
> the "no
> throttle" switch, it wouldn't work to just scab onto it with a
> relay. It
> wouldn't have been all that hard for VW to have done it through the
> ECU, but
> that's water under the bridge. I'll have to figure out a place to
> mount a
> microswitch. Anyone else tried this mod?
>
> --
> John Bange
> '90 Vanagon - "Geldsauger"