What type of system requires the use of more than one chiller?

In refrigeration operations, a non-critical system typically does not require high reliability and immediate operational availability, allowing it to function effectively with multiple chillers for load-sharing or redundancy purposes. Utilizing more than one chiller in such systems can enhance efficiency, provide flexibility in operation, and allow for maintenance without system downtime.

On the other hand, a critical system generally demands uninterrupted performance and reliability, usually relying on a single primary chiller, with any backup systems not always being in active use. Backup systems and emergency systems are designed to kick in only during failure to maintain operation, rather than operating concurrently as a standard function. Hence, the operational dynamics of a non-critical system make it the appropriate context for requiring multiple chillers to meet varying cooling loads effectively.