## Air Conditioning

#### System Charging

21-96

CAUTION

- Air conditioning refrigerant or lubricant vapour can irritate your eyes, nose or throat.
- Be careful when connecting service equipment.
- Do not breathe refrigerant or vapour.
- Use only a gauge set for refrigerant HFC-134a (R-134a).
- Use a vacuum pump adapter which is equipped with a check valve to prevent the backflow of the vacuum pump oil.

If accidental system discharge occurs, ventilate work area before resuming service.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

1. After the leak test, check that the high-pressure valve is closed and start the engine. Run the engine below 1,500 rpm (min-1).

THREE VALVE GAUGE

1. LOW-PRESSURE VALVE
2. EVACUATION VALVE
3. HIGH-PRESSURE VALVE
4. VACUUM PUMP
5. HIGH-PRESSURE QUICK JOINT
6. LOW-PRESSURE QUICK JOINT
7. CHECK VALVE

TWO VALVE GAUGE

1. LOW-PRESSURE VALVE
2. HIGH-PRESSURE VALVE
3. EVACUATION STOP VALVE
4. VACUUM PUMP
5. HIGH-PRESSURE QUICK JOINT
6. LOW-PRESSURE QUICK JOINT
7. CHECK VALVE

1. Open the front doors.
   Turn the A/C switch ON.
   Set the temperature control dial on MAX COOL.
   Set the mode control switch on VENT.
   Turn the fan switch on MAX.

3. Open the low-pressure valve and charge with R-134a refrigerant.

   WARNING
   - Do not open the high-pressure valve.
   - Do not turn the cans upside down.

4. Charge the system with refrigerant capacity. Do not overcharge the system; the compressor will be damaged.

   Refrigerant capacity:

   500 to 550 g (17.6 to 19.4 oz)

5. When fully charged, close the low-pressure valve and the refrigerant cans. Check the system.
6. Stop the engine and disconnect the charge hose quickly.
7. Check the system for leaks using a leak detector proper to refrigerant R-134a. Particularly check for leaks around the compressor, condenser and receiver/dryer.