Refrigeration & Air Conditioning Mechanic Red Seal · Question
According to CSA B52, which of the following refrigerants is classified as A2L?
R-1234yf is classified as an A2L refrigerant, meaning it is non-toxic with a lower flammability. R-410A and R-22 are A1, and R-717 is B2L.
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Question: According to CSA B52, which of the following refrigerants is classified as A2L?
Answer options:
- R-410A
- R-22 ✅ R-1234yf
- R-717 (Ammonia)
Correct answer: R-1234yf
Explanation: R-1234yf is classified as an A2L refrigerant, meaning it is non-toxic with a lower flammability. R-410A and R-22 are A1, and R-717 is B2L.
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- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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