Legend Coupe V6-3206cc 3.2L SOHC FI (1991)
Refrigerant Pressure Sensor / Switch: Description and Operation
A/C TRIPLE PRESSURE SWITCH
The triple pressure switch consists of a Hi-Low pressure switch and a middle pressure switch.
Hi-Low Pressure Switch Operating Ranges
Hi-Low pressure switch
If the refrigerant pressure becomes too high (due to blockage), or too low (due to leakage), the triple pressure switch sends a signal to the fan
control unit to prevent the compressor from operating.
Middle Pressure Switch Operating Range
Middle pressure switch
If the refrigerant pressure goes above or below 1520 kpa (15.5kg-cm2, 220 psi), the triple pressure switch sends a signal to the operation of the
condenser fan and radiator fan speed (Hi-Low).
