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Home >> Infiniti >> 2015 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater & Air Conditioning Control System >> System Description >> Operation >> Front Automatic Air Conditioning System >> Switch Name And Function >> Without ACCS (Advanced Climate Control System) - Switch Operation
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Without ACCS (Advanced Climate Control System) - Switch Operation

AUTO switch Turns the switch indicator lamp and "AUTO" indicator on the display ON, and then front air conditioning system becomes the following state.
  • Air inlet: Automatic control
  • Air outlet: Automatic control
  • Blower fan: Automatic control
  • Compressor: ON *
NOTE:

* : A/C indicator lamp continues illuminating status before AUTO switch is turned ON.
A/C switch Turns the compressor control (switch indicator) between ON ==> OFF each time while front blower fan is activated.
NOTE:
  • When front blower fan is OFF, the compressor control cannot be activated.
  • When the compressor control (switch indicator) is in the OFF position, air inlet is fresh air intake (FRE).
Defroster (DEF) switch Turns DEF mode (switch indicator) between ON ==> OFF each time.

When DEF switch is pressed while front air conditioning system is in the ON position.

  • When DEF mode is turned ON, front air conditioning system becomes the following state.
    • Air inlet: Fresh air intake
    • Air outlet: DEF
    • Blower fan: Automatic control (If fan speed other than AUTO is selected before pressing DEF switch, fan speed is manual control.)
    • Compressor: ON *
  • When DEF mode is turned OFF, front air conditioning system state returns to the previous state before DEF mode is selected. But, the following state is continued.
    • Air inlet: Fresh air intake
    • Compressor: ON

When DEF switch is pressed while front air conditioning system is in the OFF position.

  • When DEF mode is turned ON, front air conditioning system becomes the following state.
    • Air inlet: Fresh air intake
    • Air outlet: DEF
    • Blower fan: Automatic control
    • Compressor: ON *
  • When DEF mode is turned OFF, entire front air conditioning system is set to auto mode.
NOTE:
  • When DEF mode turns ON while front air conditioning system is in automatic control ("AUTO" is indicated), automatic control is released ("AUTO" turns OFF).
  • * : A/C indicator lamp continues illuminating status before DEF switch is turned ON.
DUAL switch
  • Turns left and right ventilation temperature separately control (switch indicator) between ON ==> OFF each time.
  • When DUAL switch indicator is ON, the driver side and passenger side temperatures can each be set independently.
  • When DUAL switch indicator is OFF, the driver side outlet and setting temperature is applied to both sides.
  • Left and right ventilation temperature separately control is cancelled by turning the DEF mode ON.
NOTE:

When front air conditioning system is in the OFF position, left and right ventilation temperature separately control can be selected only while front air conditioning system state (when MODE switch is pressed) is indicated on the display.
Fan switch (UP/DOWN) Front blower fan speed is manually controlled with these switches. Seven speeds are available for manual control (as shown on the display screen)
NOTE:
  • When fan switch is pressed while front air conditioning system is in OFF, front air conditioning system is activated. (Compressor control state returns to the previous state before front air conditioning system OFF.)
  • When fan switch is pressed while front air conditioning system is in automatic control ("AUTO" is indicated), automatic control is released ("AUTO" turns OFF).
FRE switch
  • Air inlet is selected to fresh air intake (FRE) by pressing this switch.
    • FRE indicator: ON
    • REC indicator: OFF
  • When FRE indicator is ON, pressing the FRE switch for approximately 1.5 seconds or more, and then the FRE and REC switch indicators blink twice and the system is switched to the automatic control.
NOTE:

When front air conditioning system is in the OFF position, air inlet can be selected.
MODE switch Selects air outlet sequentially from VENT → B/L → FOOT → D/F → VENT each time.
NOTE:
  • When front air conditioning system is in the OFF position, air outlet can be selected.
  • When MODE switch is pressed while front air conditioning system is in automatic control ("AUTO" is indicated), automatic control is released ("AUTO" turns OFF).
OFF switch
  • Turns front air conditioning system OFF.
  • When front air conditioning system turns OFF, air inlet and air outlet become the automatic control.
REC switch
  • Air inlet is selected to fresh air intake (REC) by pressing this switch.
    • REC indicator: ON
    • FRE indicator: OFF
  • When REC indicator is ON, pressing the REC switch for approximately 1.5 seconds or more, and then the FRE and REC switch indicators blink twice and the system is switched to the automatic control.
NOTE:
  • When front air conditioning system is in the OFF position, air inlet can be selected.
  • When MODE switch and DEF switch is in the D/F or DEF position, air inlet cannot be selected to recirculation (REC).
Temperature control dial (driver side)
  • Selects set temperature within a range between 18.0°C (60°F) - 32.0°C (90°F) at a rate of 0.5°C (1°F) each time the dial is rotated.
    • Clockwise rotation: Set temperature increases.
    • Counterclockwise rotation: Set temperature decreases.
NOTE:

When front air conditioning system is in the OFF position, set temperature can be selected only while front air conditioning system state (when MODE switch is pressed) is indicated on the display.
Temperature control dial (passenger side)
  • Selects set temperature within a range between 18.0°C (60°F) - 32.0°C (90°F) at a rate of 0.5°C (1°F) each time the dial is rotated.
    • Clockwise rotation: Set temperature increases.
    • Counterclockwise rotation: Set temperature decreases.
  • When the temperature control dial is turned, DUAL switch indicator turns ON.
NOTE:

When front air conditioning system is in the OFF position, set temperature can be selected only while front air conditioning system state (when MODE switch is pressed) is indicated on the display.
Upper ventilator switch Turns the upper ventilator control (switch indicator) between ON ==> OFF each time while front blower fan is activated.
NOTE:
  • When front air conditioning system is in the OFF position and air outlet is DEF position, upper ventilator control cannot be activated.
  • When front air conditioning system is in the OFF position, upper ventilator control can be selected only while front air conditioning system state (when MODE switch is pressed) is indicated on the display.
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