I recently acquired a 1984 Westfalia with the air conditioner
in the upper rear overhead storage area.  This air conditioner
seems to work with the 120V AC system.  My Westy also has the
engine driven air conditioner compressor.  Does anyone out there
in the Vanagon world know how these systems work (how is the 120V
AC side separated from the 12V side??)

Thanks for any info.

JB  KY
88 GL
84 WESTY