Refrigeration & Air Conditioning Mechanic Red Seal · Question
A thermostatic expansion valve (TXV) maintains a constant:
The TXV's primary function is to maintain a constant superheat at the outlet of the evaporator, ensuring that only vapor enters the suction line and protecting
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Question: A thermostatic expansion valve (TXV) maintains a constant:
Answer options:
- Evaporator pressure
- Liquid refrigerant level in the evaporator ✅ Superheat at the evaporator outlet
- Subcooling at the condenser outlet
Correct answer: Superheat at the evaporator outlet
Explanation: The TXV's primary function is to maintain a constant superheat at the outlet of the evaporator, ensuring that only vapor enters the suction line and protecting the compressor from liquid slugging.
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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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