Which of the following is NOT classified as a Type II appliance?

Type II appliances are defined as devices that only contain refrigerants that fall within the Class I or Class II categories, which typically operate at higher pressures. These appliances include equipment such as walk-in coolers, ice machines, and walk-in freezers.

Walk-in coolers, ice machines, and walk-in freezers are all designed to maintain specific temperatures for food preservation and storage and operate using refrigerants that are classified under Type II systems.

In contrast, a low-pressure chiller is a system designed to operate with a refrigerant that works at lower pressures, often using refrigerants like ammonia. This type of appliance falls into a different category, typically classified under Type I, which involves low-pressure chillers and similar devices. Thus, the correct classification status for low-pressure chillers distinguishes them from the other options listed.