8418.69.01.40 - Centrifugal liquid chilling refrigerating units

This classification covers centrifugal liquid chilling refrigerating units, also known as centrifugal chillers. These are self-contained mechanical refrigeration systems that utilize a centrifugal compressor to cool a liquid, typically water or a water-glycol mixture. They are primarily used in large-scale cooling applications, such as air conditioning for commercial buildings, industrial processes requiring precise temperature control, and data center cooling. The defining characteristic is the use of centrifugal force within the compressor mechanism for the refrigeration cycle.

Distinguishing this category from its siblings, 8418.69.01.40 specifically enumerates units employing a centrifugal compressor. This differentiates them from icemaking machines (8418.69.01.10), drinking water coolers (8418.69.01.20), and soda fountain/beer dispensing equipment (8418.69.01.30), which have distinct functions and designs. Furthermore, it is separate from other types of liquid chilling units such as reciprocating (8418.69.01.50) and absorption (8418.69.01.60) chillers, which utilize different compression technologies.

As a leaf node, this classification does not have further subdivisions. Therefore, its scope is precisely defined by the type of refrigeration unit described. Classification within this category hinges on the presence of a centrifugal compressor and its function in chilling liquids for broader cooling purposes, differentiating it from other refrigerating equipment based on compressor type or primary application.