Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which safety device protects a refrigeration compressor from damage due to excessive discharge pressure?
The high-pressure cutout switch opens the electrical circuit when discharge pressure exceeds safe limits, preventing compressor damage.
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Question: Which safety device protects a refrigeration compressor from damage due to excessive discharge pressure?
Answer options: ✅ High-pressure cutout switch
- Low-pressure cutout switch
- Oil pressure switch
- Thermal overload
Correct answer: High-pressure cutout switch
Explanation: The high-pressure cutout switch opens the electrical circuit when discharge pressure exceeds safe limits, preventing compressor damage.
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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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