Refrigeration & Air Conditioning Mechanic Red Seal · Question
According to CSA B52 Mechanical Refrigeration Code, what is the primary purpose of a mechanical ventilation system in an equipment room containing refrigeration machinery?
The CSA B52 code mandates mechanical ventilation to prevent dangerous concentrations of refrigerant vapor in the event of a leak, protecting against asphyxiatio
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Question: According to CSA B52 Mechanical Refrigeration Code, what is the primary purpose of a mechanical ventilation system in an equipment room containing refrigeration machinery?
Answer options:
- To reduce the operating temperature of the compressors ✅ To prevent the buildup of refrigerant concentration to unsafe levels
- To provide fresh air for human occupants in the room
- To dilute combustion by-products from heating equipment
Correct answer: To prevent the buildup of refrigerant concentration to unsafe levels
Explanation: The CSA B52 code mandates mechanical ventilation to prevent dangerous concentrations of refrigerant vapor in the event of a leak, protecting against asphyxiation or flammability hazards.
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Question explanations
- 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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