Charging Refrigerant System (Vapor)

CHARGING REFRIGERANT SYSTEM (VAPOR)

NOTE: This step is to charge the system through the low pressure side with the refrigerant in a vapor state. When the refrigerant container is placed upright, refrigerant will enter the system as a vapor:




1. Install the refrigerant can tap valve as described in Handling the Refrigerant Tap Valve section.
2. Open the low pressure valve. Adjust the valve so that the low pressure gauge does not read over 412 kPa (4.2 kg-sq.cm, 60 psi).
3. Put the refrigerant in a pan of warm water (about 40 °C or 104 °F) to keep vapor pressure in the container slightly higher than vapor pressure in the system.




4. Run the engine at fast idle and operate the air conditioning.

NOTE: Be sure to keep the container up right to prevent liquid refrigerant from being charged into the system through the suction side, resulting in possible damage to the compressor.

5. Charge the system to the specified amount. Then close the low pressure valve.

Specified amount: 680 ± 25g

6. When refrigerant charging speed is slow, immerse the refrigerant can in heated water. (a temperature of approx. 40 °C (104 °F)).

WARNING
- Under any circumstances, the refrigerant must not be warmed in water heated to a temperature of over 52C (126F).
- A blow torch or stove must never be used to warm up the can