Charging

CHARGING




1. INSTALL CHARGING CYLINDER

HINT: When handling the charging cylinder, always follow the directions given in the instruction manual.

a. Charge the proper amount of refrigerant into the charging cylinder.
b. Connect the center hose to the charging cylinder.

CAUTION: Do not open either the high or low side valve of the manifold gauge set.

c. Open the valve of the charging cylinder.
d. Press the valve core on the side of the manifold gauge and expel the air from the center hose.




2. INSPECT REFRIGERATION SYSTEM FOR LEAKS
a. Open the high pressure side valve and charge refrigerant.
b. When the low pressure gauge indicates 98 kPa (1 kgf/sq.cm, 14 psi), close the high pressure side valve.
c. Using a gas leak detector, check the system for leakage.

CAUTION: Use a refrigerant recovery/recycling machine to recover the refrigerant whenever replacing parts.




3. CHARGE REFRIGERANT INTO REFRIGERANT SYSTEM
If there is no leak after refrigerant leak check, charge the proper amount of refrigerant into the refrigeration system.

CAUTION:
- Never run the engine when charging the system through the high pressure side.
- Do not open the low pressure side valve when the system is being charged with liquid refrigerant.

a. Open the high pressure side valve fully.
b. Charge specified amount of refrigerant, then close the high pressure side valve.

HINT: The system is fully charged if bubbles cannot be seen through the sight glass.

c. Partially charge the refrigeration system with refrigerant.
1. Prepare the vehicle:
- Running engine at 1,500 rpm
- Single A/C: Front blower speed control dial at "HI" position
- Dual A/C: Front and rear blower speed set at "HI" position
- Single A/C: Front temperature control dial at "MAX. COOL" position
- Dual A/C: Front temperature control dial at "MAX. COOL" position Rear temperature control set at 18.5°C (65°F)
- Air inlet control set at "RECIRC"
- Fully open doors (Sliding roof: closed)

2. Open the low pressure side valve.

CAUTION: Do not open the high pressure side valve.




d. Charge refrigerant until bubbles disappear and check the pressure on the gauge through the sight glass.