What are the normal positions (open or closed)for the air conditioner four way pressure switch with equal pressure (engine off) and system charged?
Thursday, December 1st, 2011 AT 4:08 AM
FOUR LEVEL PRESSURE SWITCH
Four level pressure switch is mounted in discharge pipe. It provides a signal, via A/C module and engine control module, to disengage compressor clutch drive when refrigerant pressure drops to 29.0 psi (2 bar) or
increases to greater than 435 psi (30 bar).