Denis, you are right.  I was thinking about this again this morning while
waking up (I know I have a problem) and I remembered that the temperature
knob has a probe that comes off of it and sticks into the housing with the
evaporator.  So there is a temperature control for the evaporator, just not a
high/low pressure cut out switch or ambient air switch(unless the evaporator
temp probe does double duty).  Apologise for the confusion.  Guess I'm just
getting old.

Thanks,
Ken Wilford
http://www.vanagain.com
John 3:16

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