Air Conditioner Control System

AUTOMATIC AIR CONDITIONER:

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

AUTOMATIC AIR CONDITIONER - Control Operation:

DISPLAY SCREEN
Displays the operational status of the system.

A/C SWITCH (DRIVER SIDE)
The compressor, intake doors, air mix doors, 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.

When the A/C system is operating, if the screen is not displayed, press the A/C switch once to display the A/C screen. (The display time is determined by the navigation system settings.) Or, when the A/C system is in manual control, and the DUAL switch is depressed, pressing the A/C switch changes to auto-control for the driver side only.

A/C SWITCH (PASSENGER SIDE)
The compressor, intake doors, air mix doors, 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.

When the A/C system is operating, if the screen is not displayed, press the A/C switch once to display the A/C screen. (The display time is determined by the navigation system settings.) Or, when the A/C system is in manual control, and the DUAL switch is depressed, pressing the A/C switch changes to auto-control for the passenger side only.

TEMPERATURE DIAL (POTENTIO TEMPERATURE CONTROL) (DRIVER SIDE)
Increase or decrease the set temperature.

TEMPERATURE DIAL (POTENTIO TEMPERATURE CONTROL) (PASSENGER SIDE)
Increase or decrease the set temperature.
When the temperature adjustment dial is turned, the DUAL switch indicator will automatically illuminate.

INTAKE SWITCH
Set the inlet to automatic control or to REC-fixed. However, REC-fixed cannot be selected in DEF mode.

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

MODE SWITCH (DRIVER SIDE)
When the DUAL switch indicator is illuminated, the left and right outlets are switched together.

When the DUAL switch indicator is not illuminated, only the driver-side outlet is switched.

MODE SWITCH (PASSENGER SIDE)
When the MODE switch is pressed, the DUAL switch indicator illuminates, and only the passenger-side outlet is switched.

ECON (ECONOMY) SWITCH
By pressing the ECON switch, the indicator of ECON switch should illuminate 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 the temperature is above the ambient (outside) temperature. The system will set the intake doors to the outside air position.

FAN SWITCH
Manually controls the blower speed. Five speeds are available for manual control (as shown on the display screen).

DUAL SWITCH
When the DUAL switch indicator is not illuminated and the DUAL switch is pressed, the driver-side outlet and passenger-side outlet, as well as the setting temperature, can each be set independently.

When the DUAL switch indicator is illuminated and the DUAL switch is pressed, the driver-side outlet and setting temperature is applied to both sides.