Commercial refrigeration refers to the systems and equipment used to cool and preserve perishable goods in businesses such as restaurants, grocery stores, and warehouses. These systems maintain low temperatures to ensure food safety and extend the shelf life of products like meat, dairy, and vegetables. Common types of commercial refrigeration include walk-in coolers, display cases, and freezers. These units are designed to handle larger volumes of goods compared to residential refrigerators. Proper maintenance and energy efficiency are crucial for reducing operational costs and ensuring reliable performance in commercial settings.