Using Disposable Cans or Refrigerant Drum

Charging The A/C System With Refrigerant Drum:

CHARGING THE SYSTEM
1. Start the engine. Let the engine run until it reaches normal operating temperature. Move the A/C mode control lever to "OFF."
2. With the refrigerant drum inverted, open the refrigerant source valve(s). Allow 0.48kg (1 lb.) of liquid refrigerant to flow into the system through the low-side service fitting on the accumulator.
3. As soon as 0.48 kg (1 lb.) of refrigerant has been added to the system, engage the compressor by moving the A/C mode lever to "NORM" and the blower speed lever to "HI" to draw in the rest of the refrigerant charge.
^ To speed up the charging operation, a large- volume fan can be used to pass air over the condenser. If condenser temperature is maintained below the charging cylinder temperature, refrigerant will enter the system more rapidly.
4. Turn off the refrigerant source valve. Run the engine for 30 seconds to clear lines and gages.
5. With the engine running, remove the low-side charging hose adapter from the accumulator service fitting. Unscrew it rapidly to avoid excessive refrigerant loss from the system.

WARNING: Never remove a gage line from its adapter when the line is connected to the A/C System. Always remove the line adapter from the service fitting to disconnect a line. Do not remove the charging hose at the gage set while it is attached to the accumulator. This will result in the system being completely discharged, because the Schrader-type valve in the low-side service fitting is fully depressed. Complete discharge may cause personal injury due to escaping refrigerant.

6. Replace the protective cap on the accumulator fitting.
7. Turn off the engine.
8. Check the system for leaks using electronic leak detector J-29547 or equivalent.
9. Start the engine.
10. With system fully charged and checked for leaks, make a system performance check.