Refrigerant System Charge

CAUTION: Do not overcharge refrigerant system, as excessive compressor head pressure can cause noise and system failure.

After tile system has been tested for leaks and evacuated, a refrigerant (R-134a) charge can be injected into the system.

NOTE: When connecting the service equipment coupling to the line fitting, verify that the valve of the coupling is fully closed. This will reduce the amount of effort required to make the connection.

1. Connect manifold gauge set.
2. Measure refrigerant (refer to capacities) and heat to 52 degree Celsius (125 degree Fahrenheit) with the charging station. Refer to the instructions provided with the equipment being used.

Refrigerant Capacities
- Without Rear A/C = 0.96 kg (34 oz. or 2.13 lb.)
- With Rear A/C = 1.36 kg (48 oz. or 3.00 lb.)

3. Open the suction and discharge valves. Open the charge valve to allow the heated refrigerant to flow into the system. When the transfer of refrigerant has stopped, close the suction and discharge valve.
4. If all of the charge did not transfer from the dispensing device, run engine at a high idle (1400 rpm). Set the A/C control to A/C, low blower speed, and open windows. If the A/C compressor does not engage, test the compressor clutch control circuit and correct any failure.
5. Open the suction valve to allow the remaining refrigerant to transfer to the system.

WARNING: TAKE CARE NOT TO OPEN THE DISCHARGE (HIGH-PRESSURE) VALVE AT THIS TIME.

6. Close all valves and test the A/C system performance.
7. Disconnect the charging station or manifold gauge set. Install the service port caps.