Factory-built equipment and appliances must be tested according to which standard?

Factory-built equipment and appliances must adhere to specific safety and performance standards to ensure they are reliable and safe for consumer use. The correct standard applicable to these types of equipment is UL 207, 412, 471, or 1995.

These standards are established by Underwriters Laboratories (UL), an organization that develops safety certification standards. Each of the standards referenced pertains to different types of equipment or appliances used in various applications, including commercial and residential settings. For instance, UL 207 covers electric appliance control devices, while UL 1995 pertains to the safety of heating, cooling, and refrigeration equipment.

By requiring factory-built equipment to be tested under these specific standards, manufacturers ensure compliance with recognized safety protocols, which helps prevent hazards such as electrical incidents, fire risks, and operational failures. This thorough testing reinforces the integrity of the products before they reach the market, ultimately providing peace of mind to consumers and industry professionals alike.