Procedure For Charging

1. Make sure that hoses are routed properly after evacuating the system.
2. Connect the manifold gauge set in position. Thus open refrigerant container valve to purge the charging line. Then open the low pressure-side valve.

WARNING: Make sure that high pressure-side valve is closed securely.

3. Start engine and keep engine speed at 1,000 rpm. Then, operate air conditioning.
4. Charge A/C system with refrigerant in vapor state. At this time, refrigerant container should be held upright.




5. When refrigerant container is emptied, use following procedure to replace it with a new refrigerant container.
a. Close low pressure valve.
b. Replace empty container with a refrigerant container which has been charged with refrigerant. When using refrigerant container tap valve, use following procedure for replacement.
i. Retract needle and remove refrigerant container tap valve by loosening its plate nut.
ii. Install previously-removed refrigerant container tap valve to a new refrigerant container.




c. Purge any air existing in center charging hose. When using refrigerant container tap valve, use following procedure to purge air.
i. Once fully tighten refrigerant container tap valve and then loosen (open) plate nut slightly.
ii. Open low pressure valve of manifold gauge set a little.
iii. As soon as refrigerant comes out with a "hiss" through a clearance between refrigerant container and tap valve, tighten plate nut as well as manifold gauge set low pressure valve.
iv. Turn handle of tap valve clockwise so that its needle is screwed into the new container to make a hole for refrigerant flow.




6. After the system has been charged with specified amount (500 - 600 g, 17.5 - 21.0 oz.) of refrigerant or when low and high pressure gauges have indicated specified value below respectively, close low pressure side valve of manifold gauge set. At this time, look into the sight glass of receiver/dryer and check that there are no bubbles in it, which means that the system is fully charged.

Low pressure gauge when charged with specified amount About 200 - 300 kPa (2 - 3 kg/Sq.cm, 29 - 43 psi)

High pressure gauge when charged with specified amount About 1370 - 1670 kPa (14 - 17 kg/Sq.cm, 200 - 244 psi)