Mechanics

AC PRESSURE SWITCH NORMAL POSITIONS

1997 Jaguar XK8 • 23,000 miles

What are the normal positions (open or closed)for the air conditioner four way pressure switch with equal pressure (engine off) and system charged?
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Ddberringer
December 1, 2011.



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).

Hmac300
Dec 2, 2011.