Air Conditioner Control System

Overview Of Control Sytem:

Overview of Control System
The control system consists of input sensors, switches, the automatic amplifier (microcomputer) and outputs. The relationship of these components is shown in the diagram.

Control Operation:

Control Operation:

DISPLAY SCREEN
Displays the operational status of the system.

AUTO SWITCH
The compressor, intake doors, air mix door, outlet doors, and blower speed are automatically controlled so that the in-vehicle temperature will reach, and be maintained at the set temperature selected by the operator.

ECON SWITCH
By pressing the ECON switch, the display should indicate ECON and the compressor always turns OFF. With the compressor OFF, the system will not remove heat (cool) or de-humidify. The system will maintain the in-vehicle temperature at the set temperature when the set temperature is above the ambient (outside) temperature. The system will set the intake doors to the outside air position.

OFF SWITCH
The compressor and blower are OFF, the intake doors are set to the outside air position, and the air outlet doors are set to the foot (80% foot and 20% defrost) position.

FAN SWITCH
Manually controls the blower speed. Four speeds are available for manual control (as shown on the display screen): low , medium low , medium high , high

RECIRCULATION (REC) SWITCH
OFF position: Outside air is drawn into the passenger compartment. ON position: Interior air is recirculated inside the vehicle.

DEFROSTER (DEF) SWITCH
Positions the air outlet doors to the defrost position. Also positions the intake doors to the outside air position.

MODE SWITCH
Controls the air discharge outlets.

TEMPERATURE DIAL (POTENTIO TEMPERATURE CONTROL)
Increases or decreases the set temperature.

REAR WINDOW DEFOGGER SWITCH (WITHOUT NAVIGATION SYSTEM)
When illumination is ON, rear window is defogged.