Refrigeration & Air Conditioning Mechanic Red Seal · Question
How does increasing the refrigerant charge in a fixed orifice (capillary tube) system typically affect the subcooling at the condenser outlet?
Increasing the refrigerant charge typically leads to more liquid accumulation in the condenser, which allows for more heat removal from the liquid refrigerant,
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Question: How does increasing the refrigerant charge in a fixed orifice (capillary tube) system typically affect the subcooling at the condenser outlet?
Answer options:
- It decreases subcooling. ✅ It increases subcooling.
- It has no direct effect on subcooling.
- It only affects superheat, not subcooling.
Correct answer: It increases subcooling.
Explanation: Increasing the refrigerant charge typically leads to more liquid accumulation in the condenser, which allows for more heat removal from the liquid refrigerant, thus increasing subcooling.
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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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