Refrigeration & Air Conditioning Mechanic Red Seal · Question
According to the CSA B52 Mechanical Refrigeration Code, what is the primary purpose of a high-pressure cut-out switch on a refrigeration system?
The high-pressure cut-out switch is a crucial safety device mandated by CSA B52. Its primary purpose is to protect the refrigeration system from damage by shutt
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Question: According to the CSA B52 Mechanical Refrigeration Code, what is the primary purpose of a high-pressure cut-out switch on a refrigeration system?
Answer options:
- To prevent compressor short cycling ✅ To protect the system from excessive discharge pressure
- To ensure proper refrigerant charge
- To measure the system's operating efficiency
Correct answer: To protect the system from excessive discharge pressure
Explanation: The high-pressure cut-out switch is a crucial safety device mandated by CSA B52. Its primary purpose is to protect the refrigeration system from damage by shutting down the compressor if the discharge pressure exceeds a safe operating limit, preventing potential equipment failure or hazard.
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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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