Which appliance does NOT belong to type 2 appliances?

• A. Residential comfort cooling systems
• B. Walk-in coolers
• C. Household refrigerators
• D. Reach-in freezers

Answer: (C)

Household refrigerators do not belong to type 2 appliances because type 2 appliances are classified as high-pressure refrigeration systems that typically encompass commercial and industrial applications. This classification generally includes equipment like walk-in coolers and reach-in freezers, which are designed to provide cooling for larger commercial spaces or for bulk storage of food. In contrast, household refrigerators are designed for residential use and operate on different principles and typically a lower pressure system, thus categorizing them as type 1 appliances. Understanding the distinctions between appliance types is crucial for technicians, especially regarding the regulations and certification requirements tied to handling refrigerants.