Trane SYS-APM001-EN manual Large Chilled-Water Systems 6+ Chillers, District Cooling

Application Considerations

but use it sparingly due to its lower efficiency. Or, a chiller may have a different fuel source, used as a hedge against either high demand or high energy consumption charges for other energy sources. (See “Alternative Energy Sources” on page 82.) Some chilled-water systems have unequally sized chillers, allowing fewer chillers to operate. (See “Unequal Chiller Sizing” on page 78.)

Large Chilled-Water Systems

(6+ Chillers, District Cooling)

Figure 19. Large chilled-water system schematic

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Large chilled-water systems with six or more chillers (Figure 19) have different challenges than smaller systems. Examples of these types of systems are commonly found on campuses with multiple buildings, downtown districts, and mixed-use residential and commercial developments.

22 Chiller System Design and Control SYS-APM001-EN