Refrigeration equipment refers to machines and systems designed to remove heat from a designated area, thereby lowering the temperature. Common types include refrigerators, freezers, and air conditioning units. These devices work by circulating a refrigerant, which absorbs heat and releases it outside, keeping food and other items cool and fresh. In commercial settings, larger refrigeration systems are used, such as walk-in coolers and display cases. These systems are essential for preserving perishable goods, ensuring food safety, and maintaining optimal storage conditions in supermarkets, restaurants, and warehouses. Proper maintenance of refrigeration equipment is crucial for efficiency and longevity.