Discharging/Evacuating/Charging Refrigerant System

WARNING:
- Always use a UL-approved refrigerant recovery/recycling/ recharging unit Kent-Moore ACR4 or equivalent, when 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 course to be certified. State and local governments may have additional requirements. Always comply with state and local laws.
- Always wear safety goggles when discharging, evacuating or recharging an A/C system.

CAUTION:
- Always use separate refrigerant recovery/ recycling/ recharging and servicing equipment for R-12 and R-134a systems. Do not use any one piece of equipment for both R-12 and R-134a systems. Residual traces of refrigerant will contaminate and damage vehicle A/C system and the equipment Servicing equipment includes recovery/ recycling/ recharging unit, charging station, vacuum pump, manifold gauges, etc. Use only equipment designed to meet SAE standards.
- R-134a and R-12 systems use different size fittings. Never use adapters to convert an R-12 fitting to R-134a size or R-134a fitting to R-12 size.