Operation CHARM: Car repair manuals for everyone.

Compressor Clutch: Description and Operation

Magnet Clutch Circuit

SYSTEM DESCRIPTION




Unified meter and A/C amp. controls compressor operation by ambient temperature, intake air temperature and signal from ECM.
Low Temperature Protection Control
Unified meter and A/C amp. will turn the compressor ON or OFF as determined by a signal detected by ambient sensor and intake sensor.

When ambient temperature is higher than 2 °C (28 °F), the compressor turns ON. The compressor turns OFF when ambient temperature is lower than -5 °C (23 °F).




When intake air temperature is higher than 1 °C (34 °F), the compressor turns ON. The compressor turns OFF when intake air temperature is lower than -5 °C (23 °F).