AIR CONDITIONING SYSTEM


  1. CONSTRUCTION


    1. The air conditioning unit consists of the No. 1 cooler evaporator sub-assembly, heater radiator unit sub-assembly, damper servo motors, No. 1 cooler thermistor (evaporator temperature sensor) and blower motor with fan sub-assembly.

    2. The No. 1 cooler evaporator sub-assembly and heater radiator unit sub-assembly are mounted transversely to achieve a compact and lightweight form.

    3. A bus connector is used in the wire harness connection, which connects the servo motor to the air conditioning amplifier assembly.*

    4. Sliding doors are used for the air mix control doors, thus making the air conditioning radiator assembly more compact.


      • *: Models with automatic air conditioning system

      Figure 1. Air Conditioning Unit Layout Parts Location

      B002N21C01
      *1 Heater Radiator Unit Assembly *2 Blower Assembly

    5. Depending on the model, a cool air duct with a shutter is provided to the upper glove box side area of the front passenger side side register duct. The upper glove box can be used as a cool box by opening the shutter while the cooler is operating.

      Figure 2. Duct Layout Parts Location

      B002NCJC01
      *1 Front Defroster Duct *2 Side Defroster Duct (LH)
      *3 Side Register Duct (LH) *4 Footwell Duct (LH)
      *5 Footwell Duct (RH) *6 Air Inlet Duct
      *7 Side Register Duct (RH) *8 Side Defroster Duct (RH)
      *9 Center Register Duct - -

  2. OPERATION


    1. Mode Position and Damper Operation

      B002N7LC02
      *1 Front Defroster *2 Side Defroster (LH)
      *3 Side Defroster (RH) *4 Mode Switching Damper (for Defroster)
      *5 Fresh/Recirculation Damper *6 Clean Air Filter (Air Refiner Element)
      *7 Blower Motor with Fan Sub-assembly *8 No. 1 Cooler Evaporator
      *9 Air Mix Damper *10 Heater Radiator Unit Sub-assembly
      *11 Mode Switching Damper (for Footwell Duct) *12 Mode Switching Damper (for Side Register)
      *13 Mode Switching Damper (for Center Register) *14 Footwell Duct (LH)
      *15 Footwell Duct (RH) *16 Side Register (LH)
      *17 Center Register *18 Side Register (RH)
      *a Recirculated Air *b Fresh Air
      *c This illustration shows the dampers and air outlets schematically. It will differ from the actual. - -
      Mode Position and Damper Operation Chart
      Damper Operation Position Damper Position Operation
      Air Inlet Control Damper FRESH A Brings in fresh air.
      RECIRC B Recirculates internal air.
      Air Mix Control Damper HI - LO C - D Varies the mixture ratio of cool air and hot air in order to regulate the temperature continuously from HI to LO.
      Mode Control Damper FACE E, H, M, N Air blows out of the center register and side register.
      BI-LEVEL E, I, L, P Air blows out of the center register, side register and footwell register.
      FOOT F, J, L, Q Air blows out of the footwell register duct. A small amount of air also blows out from the side register, front defroster and side defroster.
      FOOT/DEF G, J, L, O Defrosts the windshield through the front defroster and side defroster. At the same time, air is blown out from the footwell register. A small amount of air also blows out from the side register.
      DEF G, J, L, N Defrosts the windshield through the front defroster and side defroster. A small amount of air also blows out from the side register.

    2. Air Outlets and Airflow Volume

      B002NEA
      Indication Mode Center Register Side Register Footwell Duct Front Defroster, Side Defroster
      A B C D
      B002N2A FACE B002MSO B002MSO - -
      B002NI2 BI-LEVEL B002N8L B002N8L B002N8L -
      B002N7E FOOT - B002N80 B002MSO B002N80
      B002N5S FOOT/DEF - B002N80 B002N8L B002N8L
      B002NHW DEF - B002N80 - B002MSO