Refrigeration & Air Conditioning Mechanic Red Seal · Question
When troubleshooting a refrigeration system, a common symptom of a dirty condenser is:
A dirty condenser reduces heat rejection efficiency, causing the head pressure and discharge temperature to rise as the compressor works harder.
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Question: When troubleshooting a refrigeration system, a common symptom of a dirty condenser is:
Answer options: ✅ High head pressure and high discharge temperature.
- Low head pressure and low discharge temperature.
- Excessive frost on the evaporator coils.
- Low suction pressure and high superheat.
Correct answer: High head pressure and high discharge temperature.
Explanation: A dirty condenser reduces heat rejection efficiency, causing the head pressure and discharge temperature to rise as the compressor works harder.
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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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