A/C Triple Pressure Switch - Acura NSX 1997 Service Manual

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A/C Triple Pressure Switch

Construction
The A/C triple pressure switch consists of a High-Low pressure switch (A/C pressure switch A) and a Middle pressure
switch (A/C pressure switch B).
High-Low pressure switch
If the refrigerant pressure becomes too high (due to blockage), or too low (due to leakage), the A/C triple pressure
switch sends a signal to the fan control unit to prevent the compressor from operating.
Middle pressure switch
If the refrigerant pressure goes above or below 1,550 kPa (15.5 kgf/cm
signal to the ECM, then the ECM operates the idle control.
A/C
TRIPLE
PRESSURE
SWITCH
Table of Contents
Operate the compressor
Stop the compressor
2
, 220 psi), the A/C triple pressure switch sends a
HIGH-LOW
PRESSURE
SWITCH
MIDDLE
PRESSURE
SWITCH