Refrigeration & Air Conditioning Mechanic Red Seal · Question
A facility has a newly installed chill water system usingR-1233zd(E) and is experiencing a slight pressure drop over several weeks. What type of leak detection method would be most effective for this low-pressure refrigerant?
R-1233zd(E) is a very low-pressure refrigerant (HFO-1233zd(E)). An ultrasonic leak detector is highly effective for detecting leaks in low-pressure systems, as
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Question: A facility has a newly installed chill water system usingR-1233zd(E) and is experiencing a slight pressure drop over several weeks. What type of leak detection method would be most effective for this low-pressure refrigerant?
Answer options:
- Electronic halide leak detector
- Fluorescent dye and UV light ✅ Ultrasonic leak detector
- Combustible gas detector
Correct answer: Ultrasonic leak detector
Explanation: R-1233zd(E) is a very low-pressure refrigerant (HFO-1233zd(E)). An ultrasonic leak detector is highly effective for detecting leaks in low-pressure systems, as it identifies the sound of refrigerant escaping even when the pressure difference is minimal. Halide detectors are for halogenated refrigerants, but at very low pressures, the amount escaping might be insufficient for detection. Fluorescent dye is for slower, less precise detection.
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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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