New Jersey Third Grade Refrigeration Engineer (2-C Blue Seal) License Practice Exam 2026 – Your All-in-One Guide to Mastering the License Test!

The compressor serves a vital function in a refrigeration system by increasing the pressure and temperature of the refrigerant gas. When the refrigerant vapor enters the compressor at a low pressure and temperature, the compressor compresses this gas, resulting in a significant increase in both characteristics. This is essential for the refrigeration cycle, as the high-pressure gas moves towards the condenser, where it will release heat and condense back into a liquid. By converting the refrigerant from a low-pressure vapor to a high-pressure vapor, the compressor enables the effective flow of refrigerant through the system, ensuring that heat is absorbed from the desired space and expelled externally. This process is crucial for the overall functionality and efficiency of refrigeration systems.