Refrigeration & Air Conditioning Mechanic Red Seal · Question
A thermostatic expansion valve (TXV) is designed to maintain constant:
The TXV regulates refrigerant flow to maintain a constant superheat at the evaporator outlet, ensuring efficient evaporator operation.
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Question: A thermostatic expansion valve (TXV) is designed to maintain constant:
Answer options: ✅ Superheat at the evaporator outlet
- Subcooling at the condenser outlet
- Pressure in the receiver
- Discharge pressure of the compressor
Correct answer: Superheat at the evaporator outlet
Explanation: The TXV regulates refrigerant flow to maintain a constant superheat at the evaporator outlet, ensuring efficient evaporator operation.
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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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