Industry Best Practices Flashcards

Why is a large refrigerant leak in an enclosed space dangerous?

Answer: Refrigerant vapor is heavier than air and can displace oxygen, causing asphyxiation

Refrigerant vapor sinks and pushes oxygen out of low, enclosed areas, which can cause suffocation.

What can form when refrigerant is exposed to an open flame or very hot surface?

Answer: Toxic gases such as phosgene and acids

Burning CFCs and HCFCs breaks them down into toxic products such as phosgene and hydrochloric or hydrofluoric acid.

What personal protective equipment is a minimum when handling liquid refrigerant?

Answer: Safety glasses and gloves

Liquid refrigerant can cause frostbite and eye injury on contact.

After recovering refrigerant from a system with a compressor burnout, what should be done to the recovery unit?

Answer: Change its filter-drier and check the oil

Burnout refrigerant carries acid and contaminants that saturate the recovery unit's filter-drier and can damage the machine.

How long must the final processor in the disposal chain keep signed statements that refrigerant was recovered from disposed appliances?

Answer: 3 years

Under Section 608, disposal verification records must be kept for 3 years.

To be resold to a new owner, reclaimed refrigerant must meet which purity standard?

Answer: AHRI 700

AHRI Standard 700 sets the purity specification for reclaimed refrigerant.

Recovered (not reclaimed) refrigerant may be charged into which equipment?

Answer: The same system or another system owned by the same owner

Recovered refrigerant can go back into equipment owned by the same owner, but a different owner's equipment needs reclaimed refrigerant.