1986 TOYOTA CAMRY V20 air condition

(Lever Type on 2VZ±FE Engine Model)
± AIR CONDITIONING SYSTEMAir Conditioning System CircuitAC±8

± AIR CONDITIONING SYSTEMAir Conditioning System CircuitAC±9

(Push Type on 2VZ±FE Engine Model)
± AIR CONDITIONING SYSTEMAir Conditioning System CircuitAC±10

± AIR CONDITIONING SYSTEMAir Conditioning System CircuitAC±11

SYSTEM COMPONENTS
± AIR CONDITIONING SYSTEMSystem ComponentsAC±12

4. The liquid refrigerant is charged by the expansion valve into a low temperature, low pressure liquid and
geseous mixture.
5. This cold and foggy refrigerant flows to the evaporator. Vaporizing the liquid in the evaporator, the heat
from the warm air stream passing through the evaporator core is transfered to the refrigerant.
All the liquid is changed into geseous refrigerant in the evaporator and only heat±laden geseous refrig-
erant is drawn into the compressor. Then the process is repeated again.
GENERAL DESCRIPTION
REFRIGERATION CYCLE
1. The compressor discharges high temperature and high pres-
sure refrigerant containing the heat absorbed from the
evaporator plus the heat created by the compressor in a dis-
charge stroke.
2. This gaseous refrigerant flows into the condenser. In the con-
denser, the gaseous refrigerant condenses into liquid
refrigerant.
3. This liquid refrigerant flows into the receiver which stores and
filters the liquid refrigerant till the evaporator requires the ref±
rigerant.
± AIR CONDITIONING SYSTEMAIR CONDITIONING SYSTEM General DescriptionAC±13

Ignition Switch ºONº
Blower Switch º'ONº " Heater Relay ªONº (Blower Motor ºRUNº)
A/C Switch ºONº " A/C Amplifier º'ONº (A/C Amp. Main Power Supply) 1. PRINCIPLE OF A/C ELECTRICAL CIRCUIT
2. HOW IS MAGNETIC CLUTCH ENERGIZED?
The general process until the magnetic clutch is energized is shown below.
Dual Pressure Switch º'ONº:
Refrigerant Condition (2.1 kg/cm2 (30 psi, 206 kPa) less than 27 kg/cm
2 (384 psi, 2,648 kPa))
Thermistor supplies temperature signal of evaporator to A/C amplifier.
VSV ºONº " E/G Idle±Up
Magnetic Clutch Relay º'ONº
Temperature Sensor ºONº:
Temperature of Temperature Sensor is less than 180
°C (356°F).
Magnetic Clutch ºONº
Revolution Detecting Sensor supplies RPM signal of compressor to A/C amplifier.
If compressor is not locked, magnetic clutch is continuously energized.
± AIR CONDITIONING SYSTEMGeneral DescriptionAC±14

To evacuate and charge system
To perform electrical diagnosis
To perform electrical diagnosis
To perform electrical diagnosis
To remove and install pressure plate
To remove pressure plate
To remove and install rotor and stator Air conditioner service tool set
Ohmmeter
Voltage meter
Ammeter
Magnetic clutch stopper
Magnetic clutch remover
Snap ring pliers (External type)
SPECIAL TOOLS AND EQUIPMENT
SSM (SPECIAL SERVICE MATERIALS)
07110±58011
07112±76060
07112±66040
07114±84020
DENSOOIL 6,
SUNlSO No. 5GS or equivalent07117±68040
Compressor
Part NameSST No.
Part No.
Use etc. Tool
Use
± AIR CONDITIONING SYSTEMSpecial Tools and EquipmentAC±15