General Information

GENERAL INFORMATION

The blower, heater, and evaporator have been integrated with the heater and A/C system to achieve greater fan power and noise reduction.





3D PROFILE TYPE COMPRESSOR





The refrigerant is compressed also in the tooth depth direction (three-dimensional compression) to improve the compression efficiency.

OPERATION

CONDENSER FAN AND RADIATOR FAN CONTROL

The ECM judges the required revolution speed of radiator fan motor and condenser fan motor using the input signals transmitted from A/C switch or vehicle speed sensor (VSS) [M/T]
and engine coolant temperature sensor.

COMPRESSOR CONTROL

When operating the A/C switch

- The fin thermo sensor, which senses the temperature of the air flowing out of the evaporator, deactivates the compressor at 1°C (33.8°F) or below.
- The dual pressure switch turns OFF when the refrigerant pressure becomes excessively high or low, thus protecting the compressor circuit (See Table below).
- When the fin thermo sensor is activated, and the ignition switch, blower switch, and A/C switch are ON, the A/C compressor clutch relay is energized.
When operating the mode selection dial

- The A/C will work when the mode selection dial is set to the "Defroster" or "Defroster/foot" position, or the temperature control dial is set to the "MAX A/C" position. In other dial positions, when the A/C switch is turned on, the A/C will work.

A/C Compressor Clutch Relay ON Conditions