A/C Refrigerant System, Discharging

A/C Refrigerant System, Discharging

CAUTION!
• Always use an Underwriter's Laboratory (UL) approved refrigerant recovery/recycling/recharging unit such as Kent-Moore ACR4, or equivalent, whenever discharging an R-134a A/C system.

• Any person who services a motor vehicle air conditioner MUST, by law, be properly trained and certified and use approved refrigerant recycling equipment. Technicians must complete an EPA approved recycling course to be certified.

• State and local governments may have additional requirements regarding air conditioning servicing. Always comply with state and local laws.

• Always wear safety goggles when charging or discharging system.

CAUTION!
• Always use separate refrigerant recovery/recycling/recharging servicing equipment for R-12 and R-134a systems. DO NOT use one piece of equipment for both R-12 and R-134a systems. The residual traces of refrigerant inside the equipment will contaminate and damage the equipment. Servicing equipment includes recovery/recycling/recharging unit, charging station, vacuum pump, manifold gauges, etc.

• DO NOT use R-12 servicing equipment on R-134a systems or R-134a equipment on R-12 systems or damage to both the vehicle A/C system and servicing equipment may result. Use only equipment designed to meet Society of Automotive Engineers (SAE) standards.

• R-134a and R-12 systems use different size service fittings. NEVER use adaptors to convert an R-12 fitting to R-134a size or R-134a fitting to R-12 size.

• Refer to safety measures starting on => [ Safety Precautions ] Service Precautions prior to discharging or charging A/C refrigerant system.

• Make sure that initial set-up of the refrigerant recovery/recycling/recharging unit has been completed before discharging the A/C system.

- Connect red high-pressure hose of refrigerant recovery/recycling/recharging unit to high pressure service valve on vehicle (where applicable).

- Connect blue low-pressure hose of refrigerant recovery/recycling/recharging unit to low pressure service valve.

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

- Following refrigerant recovery/recycling/recharging unit manufacturer's instructions, discharge A/C system into refrigerant recovery/recycling/recharging unit.

- Disconnect power supply from A/C Clutch to prevent accidental compressor operation with A/C system discharged.