AIR CONDITIONING SYSTEM


  1. OUTLINE


    1. The automatic air conditioning system uses left and right independent temperature control and neural network control to enhance comfort.

    2. An inside-and-outside dual air layer type air conditioning unit is used. The upper layer ensures antifogging performance by introducing outside air, and the lower layer aims for ventilation loss reduction by circulating the inside air, thus achieving energy conservation.

    3. A capacitive switch is provided for the temperature setting of the air conditioner control assembly. The temperature setting can be adjusted using multiple touch operations such as a short touch, long touch and sliding touch.

  2. SPECIFICATION


    1. Ventilation and Heater Core

      Heater Radiator Unit Assembly Type Straight Flow Aluminum-II (SFA-II)
      Blower with Fan Motor Assembly Motor Type Brushless Step - IV
      Fan Type Semi Sirocco

    2. Air Conditioning

      Cooler Condenser Assembly Type Global Inner-fin Condenser (GIC)
      Cooler Compressor Assembly Type 7SES17C
      Pulley Damper Limiter (DL) without Magnetic Clutch
      Refrigerant Type

      HFC134a*1

      HFO-1234yf*2
      Charge Volume g

      520 to 620*1

      540 to 600*2
      No. 1 Cooler Evaporator Sub-assembly Type Revolutionary Super-slim Structure (RS)

      *1: Models using HFC-134a refrigerant

      *2: Models using HFO-1234yf refrigerant

  3. MAIN FEATURES


    1. The air conditioning system has the following features:

      Feature Outline
      High Performance

      • Neural network control is used, so passengers can finely control the air conditioning for maximum comfort.

      • The rear outlets are installed on the back of the center console to ensure comfortable cooling performance for the rear passengers.

      • A high efficiency type clean air filter, which has a pollen-and-odor removal effect, is used.

      • Pollen removal mode control is used to remove pollen in the area around the upper part of the bodies of the driver and front passenger.

      • The blower control has 7 levels in manual mode and 31 levels in auto mode for more precise control.

      • Using the following features of the cooler compressor assembly (continuously variable capacity compressor), high cooling performance and a quiet cabin have been achieved:


        • Magnetic flux sensor type air conditioning mass flow sensor

        • Oil separator

        • Variable suction side throttle

        • Solenoid control valve with built-in crank chamber to suction passage (CS) valve
      Lightweight

      • A bus connector with a built-in IC communication/driver is used in a lightweight wire harness design to allow a reduced number of wires.

      • The use of this type of connector means that pulse pattern type servo motors are used.
      Compact A blower motor with a built-in blower motor controller is used to achieve a compact construction.
      Others

      The following parts are used to ensure high cooling performance while achieving a compact and lightweight construction:


      • Semi-center Location Air Conditioning Unit

      • Revolutionary Super-slim Structure (RS) Evaporator

      • Straight Flow Aluminum (SFA)-II Heater Radiator Sub-assembly

      • Global Inner-fin Condenser (GIC)

  4. PRECAUTION


    1. Precaution for Refrigerant HFO-1234yf


      1. The parts used in the refrigerant cycle, the compressor oil, etc. of a HFO-1234yf system are not compatible with a conventional HFC-134a system.

      2. Always use HFO-1234yf as the refrigerant.

        Note


        • Do not charge the system with refrigerant near open flames, as HFO-1234yf is combustible.

        • When charging the system with refrigerant, make sure the area is well ventilated (especially be careful in areas where the gas can easily accumulate such as under lifts and in garage pits, as the gas is heavier than air).

        • Follow any local regulations regarding combustible gases.

        • Be sure to use a refrigerant recovery unit that is compatible with HFO-1234yf systems.

        Tech Tips

        The shape of the service port for refrigerant charging has an exclusive design conforming to international standards for HFO-1234yf to prevent improper refrigerant charging.

    2. Compressor Oil


      1. Always use ND-OIL 12 as the compressor oil.

        Note

        The oil used for HFC-134a systems (ND-OIL 8) does not work well in HFO-1234yf systems. If the oil used for HFC-134a systems (ND-OIL 8) is used in the HFO-1234yf system, it will result in degradation of the refrigerant and deterioration of resin parts.

      2. When parts of the air conditioning system are removed, quickly block off any areas that are exposed to the outside air with plugs, vinyl tape, etc., as the oil used for HFO-1234yf systems absorbs moisture easily.

      3. Do not allow the compressor oil to spray, as the oil used for HFO-1234yf systems has harmful effects on acrylic resins.