Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the typical state of the refrigerant entering a thermostatic expansion valve (TXV)?
Refrigerant leaving the condenser and passing through the liquid line should be in a high-pressure, slightly subcooled liquid state. This ensures stable and eff
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Question: What is the typical state of the refrigerant entering a thermostatic expansion valve (TXV)?
Answer options:
- High-pressure, low-temperature liquid
- Low-pressure, low-temperature vapour ✅ High-pressure, slightly subcooled liquid
- Low-pressure, saturated vapour
Correct answer: High-pressure, slightly subcooled liquid
Explanation: Refrigerant leaving the condenser and passing through the liquid line should be in a high-pressure, slightly subcooled liquid state. This ensures stable and efficient operation of the thermostatic expansion valve as it meters flow to the evaporator.
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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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