Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following refrigerants is still commonly used in new residential air conditioning systems in Canada, but is an HFC and is subject to future phase-down schedules?
R-410A is a common HFC refrigerant used in new residential air conditioning systems. While it has zero ozone depletion potential, it has a high Global Warming P
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Question: Which of the following refrigerants is still commonly used in new residential air conditioning systems in Canada, but is an HFC and is subject to future phase-down schedules?
Answer options: ✅ R-410A
- R-22
- R-123
- R-717
Correct answer: R-410A
Explanation: R-410A is a common HFC refrigerant used in new residential air conditioning systems. While it has zero ozone depletion potential, it has a high Global Warming Potential (GWP) and is therefore subject to HFC phase-down regulations under the Ozone-depleting Substances and Halocarbon Alternatives Regulations (CEPA), which came into full effect January 1, 2019.
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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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