ESCO A2L ESCO A2L - ESCO A2L Refrigerant Flammability Classifications and Risk Assessment Questions and Answers

Question 1

What ASHRAE Standard 34 safety group classification applies to A2L refrigerants?

Accepted Answer

A2L

Answer

A1

Answer

B2L

Answer

A3

Question 2

What is the maximum burning velocity that qualifies a refrigerant for the A2L classification under ASHRAE 34?

Accepted Answer

10 cm/s

Answer

50 cm/s

Answer

100 cm/s

Answer

25 cm/s

Question 3

Which A2L refrigerant is designated as the primary low-GWP replacement for R-410A in new US residential HVAC equipment?

Accepted Answer

R-454B

Answer

R-22

Answer

R-134a

Answer

R-404A

Question 4

In the ASHRAE 34 safety classification system, what does the letter 'A' prefix indicate?

Accepted Answer

Lower toxicity

Answer

Azeotropic blend

Answer

Approved for residential use

Answer

Atmospheric refrigerant

Question 5

Compared to A3 refrigerants like propane (R-290), A2L refrigerants require what type of energy to ignite?

Accepted Answer

Higher minimum ignition energy

Answer

Lower minimum ignition energy

Answer

Identical minimum ignition energy

Answer

No ignition energy is required

Question 6

Which A2L refrigerant is widely used in mini-split systems globally and is increasingly found in US residential ductless equipment?

Accepted Answer

R-32

Answer

R-410A

Answer

R-22

Answer

R-407C