[55A] HEATER, AIR CONDITIONER AND VENTILATION - - ON-VEHICLE SERVICE - CHARGING | PRINT PAGE / INDEX / PRIOR / NEXT

| CHARGING
| With the handles turned back all the way (valve closed), install the adaptor valve to the low-pressure side of the gauge manifold. Connect the charging hose (blue) to the adaptor valve. Connect the quick joint (for low-pressure) to the charging hose (blue). CAUTION Use tools that are suited to R134a. To install the quick joint, press section When connecting, run your hand along the hose while pressing to ensure that there are no bends in the hose. Connect the quick joint (for low-pressure) to the low- pressure service valve. NOTE: The low-pressure service valve should be connected to the flexible suction hose. Close the high and low-pressure valves of the gauge manifold. CAUTION Be sure to connect the power plug of the vacuum pump to the vacuum pump adapter, and then connect the power plug of the adapter to a 100-V outlet. Install the vacuum pump adaptor to the vacuum pump. Connect the charging hose (yellow) to the R-134a connection port of the vacuum pump adaptor. Tighten the adaptor valve handle (valve open). Open the low-pressure valve of the gauge manifold. Turn the power switch of the vacuum pump to the ON position. NOTE: Even if the vacuum pump power switch is turned ON, the vacuum pump will not operate because of the power supply connection in step (6).
| CAUTION Do not operate the compressor for evacuation.
| Turn the vacuum pump adaptor switch to the R134a side to start the vacuum pump. Evacuate to a vacuum reading of 100 kPa or higher (takes approx. 10 minutes). CAUTION Do not operate the compressor in the vacuum condition; damage may occur. Loosen the valve of the adapter valve fully (valve closed), and turn off the vacuum pump adapter switch. Then leave it for five minutes. Check the system for proper sealing (negative pressure should not decrease).
| Connect the service can valve to the service can with the handle loosened fully (valve closed). Turn the handle of the adaptor valve back all the way (valve closed), remove it from the gauge manifold and install the service can. Tighten the handle of the charging valve (valve closed) to puncture the service can. CAUTION If the service can is inverted, liquid refrigerant may be drawn into the compressor damaging it by liquid compression. Keep the service can upright to ensure that refrigerant is charged in gas state.
| Turn the handle of the charging valve back (valve open) and tighten the handle of the adaptor valve (valve open) to charge the system with refrigerant. If the refrigerant is not drawn in, turn the handle of the adaptor valve back all the way (valve closed). Check for gas leaks using a leak detector. If a gas leak is detected, re-tighten the connections, and then repeat the charging procedure from evacuation in step (11). CAUTION The leak detector for R-134a should be used. Start the engine. Operate the A/C and set to the lowest temperature (MAX. COOL). Fix the engine speed at 1,500 r/min. CAUTION If the service can is inverted, liquid refrigerant may be drawn into the compressor damaging it by liquid compression. Keep the service can upright to ensure that refrigerant is charged in gas state. Tighten the handle of the adaptor valve (valve open) to charge the required volume of refrigerant. After charging with refrigerant, turn the handle of the adaptor valve back all the way (valve closed). Tighten the charging valve handle (valve closed). Remove the quick joint (for low-pressure) from the low-pressure service valve. Remove the service can. NOTE: If the service can is not emptied completely, keep the handles of the charging valve and adaptor valve closed for the next charging.

[55A] HEATER, AIR CONDITIONER AND VENTILATION - - ON-VEHICLE SERVICE - CHARGING | PRINT PAGE / INDEX / PRIOR / NEXT

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