Refrigeration & Air Conditioning Mechanic Red Seal · Question
According to Canadian CSA B52 Mechanical Refrigeration Code, all new refrigeration systems must be leak-tested to what minimum pressure?
CSA B52 specifies minimum leak test pressures. For the low side, it's typically 550 kPa (80 psig) or 1.1 times the low-side MAWP, whichever is greater. For the
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Question: According to Canadian CSA B52 Mechanical Refrigeration Code, all new refrigeration systems must be leak-tested to what minimum pressure?
Answer options:
- Operating pressure plus 10% ✅ A minimum of 550 kPa (80 psig) or 1.1 times the maximum allowable working pressure of the low-side, whichever is greater
- The design pressure of the high-side
- The discharge pressure of the compressor at full load
Correct answer: A minimum of 550 kPa (80 psig) or 1.1 times the maximum allowable working pressure of the low-side, whichever is greater
Explanation: CSA B52 specifies minimum leak test pressures. For the low side, it's typically 550 kPa (80 psig) or 1.1 times the low-side MAWP, whichever is greater. For the high side, it's 1.1 times the high-side MAWP.
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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?
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