Refrigeration & Air Conditioning Mechanic Red Seal · Question
According to CSA B52 Mechanical Refrigeration Code, what is the maximum allowable charge of Group A2L refrigerant for comfort cooling in occupied spaces without specific mitigation measures?
The maximum charge for A2L refrigerants is highly dependent on the room size and other safety factors, requiring calculation based on the code.
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Question: According to CSA B52 Mechanical Refrigeration Code, what is the maximum allowable charge of Group A2L refrigerant for comfort cooling in occupied spaces without specific mitigation measures?
Answer options:
- No limit ✅ Dependent on room size
- 5 kg
- 10 kg
Correct answer: Dependent on room size
Explanation: The maximum charge for A2L refrigerants is highly dependent on the room size and other safety factors, requiring calculation based on the code.
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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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