System Familiarity

Before attempting any service that requires opening of refrigerant lines or components, the person doing the work should be thoroughly familiar with the information under "Handling Refrigerant-134a," "Handling Refrigerant Lines and Fittings," and "Maintaining Chemical Stability". Very carefully follow the instructions in the "Recovering the Refrigerant and Recycling, Adding Oil, Evacuating and Recharging Procedures" for the unit being serviced.