Refrigerant Pressure Sensor / Switch: Testing and Inspection
A/C PRESSURE TRANSDUCERINSPECTION
1. Measure the pressure of high pressure line by measuring voltage output between NO.1 and NO.2 terminals.
2. Verify that the voltage value is within specification.
Voltage = 0.025 * Pressure + 0.1 [kgf/sq.cm]
Voltage = 0.001758 * Pressure + 0.074162 [PSIA]
3. If the measured voltage value is not specification, replace the A/C pressure transducer.