True or False: Chillers are classified as low pressure appliances.

Chillers are not classified as low pressure appliances; therefore, the statement is false. Chillers typically operate using refrigerants that compress and expand at medium or high pressure, depending on their design and the specific type of refrigeration cycle they utilize.

Low pressure appliances generally refer to systems using refrigerants with lower boiling point pressures, such as ammonia-based systems. Chillers, particularly those using common refrigerants like R-134a or R-410A, operate under higher pressures to facilitate the heat exchange process efficiently. This distinction is crucial for understanding the types of refrigeration systems and is relevant for meeting safety standards and regulatory compliance in HVACR practices.