Contents: Security measures ↓ Precautions when charging refrigerant ↓ Application of refrigerant R134a ↓
Security measures
1. Always follow safety precautions when working with refrigerant.
a) Do not work with refrigerant in a closed room or near an open flame.
b) Always wear safety glasses.
c) Be careful not to let the refrigerant come into contact with your eyes or skin. In case of injury:
- Do not rub the burnt area.
- Rinse the burnt area with plenty of cold water and lubricate the skin with pure petroleum jelly.
- Do not attempt to treat yourself, seek medical attention immediately.
d) Before removing or checking electrical components, turn the ignition switch to the "LOCK" position and disconnect the negative battery cable.
Precautions when charging refrigerant
1. Do not operate the compressor without sufficient refrigerant. Insufficient refrigerant will result in insufficient lubrication of the compressor, which may result in compressor failure.
2. Do not open the high pressure valve on the gauge block while the compressor is running. Opening the high pressure valve will change the direction of the refrigerant flow, which will cause the cylinder to break.
3. Do not overcharge the system. Excess refrigerant leads to insufficient cooling, excessive fuel consumption, engine overheating, etc.
Application of refrigerant R134a
The air conditioning system uses refrigerant HFC-134a (R134a). Compressor oil and seals designed for use with refrigerant R12 cause damage to the system, pay attention to compatibility when repairing.
- Compressor oil - ND-OIL8
Component arrangement.
1 - heater and air conditioner control panel,
2 - light sensor,
3 - mounting block,
4 - cabin temperature sensor,
5 - relay block No.4,
6 - compressor with electromagnetic clutch,
7 - idle speed increase solenoid valve (4S-FE, 3S-FE),
8 - idle speed increase electro-pneumatic valve (ZS-T),
11 - ambient air temperature sensor,
12 - pressure switch.