I think you may both be right, depending on year and model. I have seen
early 2.1 Campers with A/C that had simpler wiring for the A/C than the
Bentley shows. Maybe they were camper a/c kits left over from 1.9
models, I don't know.

John makes a point though that the A/C switch turns on low speed fan
while the high freon pressure switch turns on medium speed. True High
speed disables the A/C compressor clutch which is one reason why those
in very hot climates may think the A/C does not work very well. If there
is any cooling system degradation that causes the radiator to run too
hot it will trigger the high temp switch more often on hot days. Then
the A/C will stop blowing cold whenever the radiator high temp switch is
triggered. This may be blamed on the A/C being weak but the true cause
is elsewhere in the cooling system.

Mark

gary hradek wrote:
>
> John,
>     I use to think the same but there is no high
> pressure switch but rather a high temperature switch.
> Dig a little deeper into the manual and you will find
> that.   gary
> --- John Connolly <john@aircooled.net> wrote:
> > Inspection of the A/C circuit will also reveal the
> > high pressure switch in
> > the AC system. Since "Freon" pressure is also
> > dependent upon temperature, if
> > the pressure exceeds a certain value (I can't
> > remember what it is, 250
> > psi?), the fan kicks on high speed (HIGH speed). The
> > fan will remain on even
> > if the van is turned off. My 87' did it yesterday
> > for the first time this
> > summer (temps of 105 here), the fan turns off when
> > the pressure in the
> > system drops below the switch point. This is to
> > ensure the AC Still works if
> > it gets hot (HOT).
> >
> > John
> > Aircooled.Net Inc.
> >
>
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