Mohawk Basic AC and Refrigeration Practice Exam 2025 – The Complete All-in-One Guide to Exam Success!

The high-pressure cutout in a refrigeration system is a crucial safety device designed to protect the compressor. Its primary function is to monitor the pressure of the refrigerant within the system, specifically the high-pressure side. When the pressure exceeds a certain set point, indicating a potential problem such as a blockage or a malfunction, the high-pressure cutout activates and shuts down the compressor. This prevents damage that could occur from excessive pressure, such as overheating, mechanical failure, or even catastrophic failure of the compressor.

The integrity and longevity of the compressor are vital for the overall efficiency and reliability of the refrigeration system. By preventing the compressor from operating under potentially damaging conditions, the high-pressure cutout serves as an essential safeguard, minimizing repair costs and extending the lifespan of the equipment.