AIR CONDITIONING SYSTEM

OUTLINE

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

2. S-FLOW control is used to concentrate the air outlets on the front seats when the S-FLOW switch is turned on.

SPECIFICATIONS

1. Ventilation and Heater Core

   Component		Specifications
   Heater Radiator Unit Sub-assembly	Type	Straight Flow Aluminum-II (SFA-II)
   	Size (W x H x L)	222.3 mm x 120 mm x 27 mm (8.8 in. x 4.7 in. x 1.1 in.)
   	Fin Pitch	1.8 mm (0.07 in.)
   Blower Motor with Fan Sub-assembly	Motor Type	DC Ferrite Brushless
   	Fan Type	Sirocco
   	Fan Size (Dia. x H)	128.2 mm x 70 mm (5.0 in. x 2.8 in.)

2. Air Conditioning

   Component		Specifications
   Cooler Condenser Assembly	Type	Multi-Flow IV (MF-IV) Sub-cool
   	Size (W x H x L)	666 mm x 287 mm x 22 mm (26.2 in. x 11.3 in. x 0.9 in.)
   	Fin Pitch	2.7 mm (0.1 in.)
   Compressor with Motor Assembly		ES27C
   Refrigerant	Type	HFC-134a*1, HFO-1234yf*2
   No. 1 Cooler Evaporator Sub-assembly	Type	Beneficial Refrigerant Stream (BRS)
   	Size (W x H x L)	239.5 mm x 231 mm x 38 mm (9.4 in. x 9.1 in. x 1.5 in.)
   	Fin Pitch	3.0 mm (0.1 in.)

   
   

   • *1: Models using HFC-134a refrigerant

   • *2: Models using HFO-1234yf refrigerant

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 (air refiner element), 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.
   Light Weight	A bus connector with a built-in IC is used in a lightweight wire harness design to allow a reduced number of wires. The use of this connector means that pulse pattern type servo motors can be 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 ES27C Type Electric Inverter Compressor Beneficial Refrigerant Stream (BRS) Evaporator Straight Flow Aluminum (SFA)-II Heater Radiator Sub-assembly Multi-Flow IV (MF-IV) Sub-cool Condenser

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.