Discharging System

Refrigerant System, Discharging

Follow the safety measures when discharging or charging A/C refrigerant system. [1][2]Service Precautions

WARNING:
- Automotive refrigerant containing CFC's is hazardous to the earth's atmosphere. To protect our environment, use an Underwriter's Laboratory (UL) approved refrigerant recovery/recycling unit such as Kent-Moore ACR3, or equivalent, whenever discharging an A/C system.
- The A/C system should be serviced only by trained personnel familiar with:
- equipment use
- related safety procedures
- regulations governing the discharging/handling disposal of automotive refrigerants.
- Always wear safety goggles when charging or discharging system.
- Avoid inhaling fumes when using flame type leak detector. Refrigerant-12 becomes poisonous gas after coming into contact with open flame.

- remove protective caps from A/C service valves
- close both valves on A/C manifold gauge set





- connect hose 1 from low pressure gauge to low pressure service valve
- connect hose 3 from high pressure gauge to high pressure service valve

CAUTION: Always follow manufacturer's instructions when using a refrigerant recovery/recycling unit.

- connect manifold gauge hose 2 to inlet connection 4 on refrigerant recovery/recycling unit 5
- following refrigerant recovery/recycling unit manufacturer's instructions, discharge A/C system into refrigerant recovery/recycling unit
- close manifold gauge valves when refrigerant is fully discharged
- disconnect manifold gauge set hoses from service valves
- reinstall protective caps on service valves

CAUTION: DO NOT leave A/C system open for a long period of time. Prolonged exposure to the air will contaminate the system and necessitate the replacement of the receiver drier and possibly other system components.





- disconnect plug 1 from A/C compressor clutch to prevent accidental compressor operation while system is discharged