2 lbs of 134a. I have an LED light that is illuminated when power is applied to the clutch. It has never gone off... No cycling, nothing. I have a binary switch (more for safety than any CCOT stuff) that is 10psi and 375psi. I'm relying on the evaporator switch for cycling.

__________________
My occupational hazard bein'
my occupation's just not around...
1980 300SD
1980 300SD