Charging Refrigerant System (VAPOR)

CHARGING REFRIGERANT SYSTEM (VAPOR)

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





1. Install the refrigerant can tap valve as described in Handling the Refrigerant Service 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 (maximum temperature 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 conditioner.

NOTE: Be sure to keep the container upright 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:
R-134a : 700-750 g (1.56-1.67 lb)





When refrigerant charging speed is slow, immerse refrigerant can in water, heated to about 40° C (104° F).

WARNING: Under NO circumstances should the refrigerant can be warmed in water heated over 52° C (126° F). A blow torch or stove must never be used to warm the can.