2 Safety and Preparation for Recovery Free Online FlashCards

How should you identify refrigerant before recovery?

Identify it from the appliance nameplate and use an appropriate refrigerant identifier when needed; do not assume refrigerants have the same hazards.

What basic PPE protects against liquid refrigerant exposure?

Wear safety glasses or goggles and gloves that protect against cold liquid refrigerant. Liquid refrigerant can cause severe frostbite on contact.

What type of cylinder should hold recovered refrigerant?

Use a suitable, approved refrigerant recovery cylinder, not a disposable refrigerant supply cylinder.

What should you inspect on a recovery cylinder before use?

Inspect the cylinder, valve, connections, and markings. Do not use a cylinder that is damaged, corroded, or out of date.

How should recovery cylinders be secured and transported?

Keep cylinders upright and secured against tipping. For transport, fit the valve-protection cap and use a suitable hand truck; do not drop, drag, or roll them.

How do you prevent overfilling a recovery cylinder?

Weigh the cylinder during recovery and stop before its marked allowable fill is exceeded, accounting for liquid expansion and following cylinder and equipment instructions.

How should different or unknown recovered refrigerants be handled?

Keep different refrigerants separate and clearly identify each cylinder. Put unknown or contaminated refrigerant in a designated container rather than mixing it with known refrigerant.

Why is ventilation especially important in low or enclosed areas?

Work outdoors or provide effective ventilation, especially in small rooms, pits, and other low areas where vapor may collect and displace oxygen.

What should you do after a significant refrigerant release?

Leave the area. Do not enter a suspected oxygen-deficient space to attempt a rescue unless you have appropriate training and equipment.

What precautions are needed for flammable refrigerants?

Use recovery equipment and tools specifically suitable for that refrigerant, and control ignition sources such as flames, sparks, and hot work.

What equipment checks help prevent incompatibility and contamination?

Check that the recovery machine, hoses, fittings, and cylinder are compatible with the refrigerant and operating pressures. Keep equipment clean and dry, and cap hoses when not in use.

When is a face shield called for during refrigerant recovery?

Use a face shield when there is a risk of a substantial liquid release.