Maintaining Chemical Stability

MAINTAINING CHEMICAL STABILITY

The efficient operation of the air conditioning refrigeration system is dependent upon the chemical stability of Refrigerant-12.

Foreign matter can change the stability of Refrigerant-12, and cause corrosion and wear. Do the following:

1. Before disconnecting a refrigerant connection remove dirt or oil at and near the connection. Cap or plug both sides of the connection.

2. Keep tools clean and dry.

3. When adding 525 viscosity refrigerant oil (refer to ADDING OIL in the "Discharging, Evacuating, Adding Oil and Charging Procedures"), the transfer device and container should be clean and dry.

4. Have everything ready before opening a line. Do not leave the system open longer than necessary.

5. After opening, evacuate before recharging with Refrigerant-12 according to the "Discharging, Evacuating, Adding Oil, and Charging Procedures."

6. Service parts are dehydrated and sealed before shipping. Open just before making connections. Keep at room temperature before uncapping (this prevents moisture from entering the system). If the connections are not made, reseal the parts.