AIR CONDITIONING SYSTEM


  1. OUTLINE


    1. A dual zone automatic air conditioning system (left and right independent control) is provided.

    2. An inside-and-outside dual air layer type air conditioning unit is used.

    3. A Positive Temperature Coefficient (PTC) heater is provided as an additional heater depending on the specification.

    4. HFO-1234yf refrigerant is used.

  2. SPECIFICATIONS


    1. Performance

      Item Specification
      Heater Heater Output W 5450
      Air Flow Volume

      m3/h

      		 365
      Cooler Cooling Capacity W 5200
      Air Flow Volume

      m3/h

      		 505

    2. Ventilation and Heater Core

      Item Specification
      Heater Radiator Unit Sub-assembly Type Straight Flow Aluminum-II (SFA-II)
      Size (W x H x L) mm (in.) 222.3 x 120 x 27 (8.75 x 4.72 x 1.06)
      Fin Pitch mm (in.) 1.8 (0.07)
      Blower Motor with Fan Sub-assembly Motor Type DC Ferrite Brushless
      Fan Type Sirocco
      Fan Size (Dia. x H) mm (in.)

      Upper Side : 122 x 55 (4.80 x 2.17)

      Lower Side : 125 x 38 (4.92 x 1.50)

    3. Air Conditioning

      Item Specification
      Cooler Condenser Assembly Type Global Inner-fin Condenser (GIC)
      Size (W x H x L) mm (in.) 690 x 376.2 x 11.5 (27.2 x 14.8 x 0.46)
      Fin Pitch mm (in.) 2.5 (0.10)
      No. 1 Cooler Evaporator Sub-assembly Type Beneficial Refrigerant Stream (BRS)
      Size (W x H x L) mm (in.) 239.5 x 231 x 38 (9.43 x 9.09 x 1.50)
      Fin Pitch mm (in.) 3.0 (0.12)
      Compressor with Motor Assembly Type ESB20
      Refrigerant Type HFO-1234yf

  3. MAIN FEATURES


    1. The air conditioning system has the following features:

      Feature Outline
      High Performance

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

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

      • The Positive Temperature Coefficient (PTC) heater control is used. This system contains a PTC heater (quick heater assembly) that heats the air that has passed through the heater radiator unit sub-assembly to ensure proper heater performance.*

      • A pollen removal type clean air filter is used as a clean air filter.
      Light Weight A bus connector with a built-in communication/driver IC 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 can be used.
      Compact A semi-center location air conditioning unit in which the No. 1 cooler evaporator sub-assembly, heater radiator unit sub-assembly and PTC heater (quick heater assembly)* are placed in the vehicle's longitudinal direction is used.
      Others

      The following parts are used to ensure high cooling or heating performance while realizing a compact and lightweight construction.


      • Straight Flow Aluminum (SFA)-II type heater radiator unit sub-assembly

      • Beneficial Refrigerant Stream (BRS) type No. 1 cooler evaporator sub-assembly

      • Global Inner-fin Condenser (GIC) Sub-cool Condenser

      *: Cold area specification models

  4. PRECAUTION


    1. Precaution for Refrigerant HFO-1234yf


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

        CAUTION:


        • 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 11 as the compressor oil.

      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.