1B-18 AIR CONDITIONING 7. When the refrigerant container is emptied, use the following procedure to replace it with a new refrig- erant container. 1) Close the low pressure hand valve. 2) Raise the needle upward and remove the charge valve. 3) Reinstall the charge valve to the new refriger- ant container. 4) Purge any air existing in the center hose of the manifold gauge. 8. Charge the system to the specified amount and then close the low-pressure hand valve. Refrigerant Amount g (lbs.) 450 (0.99) GCC, 600 (1.32) Australia & Taiwan A fully charged system is indicated by the sight glass on the receiver/drier being free of any bub- bles (Refer to “Reading Sight Glass”). N1A0071E 1.
Make sure the evacuation process is correctly completed. 2. Connect the center-hose of the manifold gauge to the refrigerant container. Check the high and low pressure value of the man- ifold gauge. Turn the charge valve handle counterclockwise to purge the charging line and purge any air existing in the center-hose of the manifold gauge. 3. Open the low-pressure hand valve and charge the refrigerant about 200 g (0.44 lbs.). Check for refrigerant leaks by using a R-134a leak detector. Immediately after charging refrigerant, both high and low pressures are slightly high and to the left of the gauge, but they settle down to the guide pressure valves as shown below:
Ambient temperature; 30 — 35 ° C (86 — 95 ° F) Avoid charging the refrigerant by turning the refrig- erant container upside down. 4. Close the low-pressure hand valve of the manifold gauge. Make sure the high-pressure hand valve is closed. Guide pressure High-pressure side; Approx. 1373 — 1667 kPa (14 — 17 kg/cm 2 / 199 — 242 PSI) Low-pressure side; Approx. 127 — 245 kPa (1.3 — 2.5 kg/cm 2 / 18 — 36 PSl) 9. Close the low pressure hand valve and charge valve of the refrigerant container. 10. Stop the air conditioning and the engine. 11. Disconnect the high and low pressure hoses from the manifold gauge fittings. Check to ensure that the degree of pressure does not charge. 5.
Check the refrigerant leaks by using a R-134a leak detector. If a leak occurs, repair the leak connection, and start all over again from the first step of evacuation. 6. If no leaks are found, open the low-pressure hand valve of the manifold gauge. Then continue charg- ing refrigerant to the system. When charging the system becomes difficult: 1) Run the engine at 1,300 — 1,500 rpm and open the all vehicle doors. 2) A/C switch is “ON”. 3) Set the fan control knob (fan switch) to its high- est position. BE ABSOLUTELY SURE NOT TO OPEN THE HIGH- PRESSURE HAND VALVE.
SHOULD THE HIGH- PRESSURE HAND VALVE BE OPENED, THE HIGH- PRESSURE REFRIGERANT GAS WOULD FLOW BACKWARD, AND THIS MAY CAUSE THE REFRIG- ERANT CONTAINER TO BURST. WaArRnNinIgN:G: