Trane TRG-TRC016-EN manual Review-Period Four

period five

Review

notes

Review—Period Four

▲Chiller sequencing

▲ Failure recovery

▲ Contingency planning

▲ System tuning

▲ System optimization ▲ Operator interface

Figure 115

Period Four discussed the issues related to chiller-plant control, including chiller sequencing, failure recovery, contingency planning, system tuning, and system- level optimization.

Remember that you cannot “control your way out of” a poor system design. Although the control system can attempt to minimize the impact of a poor design, it cannot eliminate the cause of the poor design.

Second, even a properly installed system with good components requires system-level control to make those components work together effectively.

Third, even if the components are working together, the system, not the individual components, needs to be optimized. Remember: the meter is on the building.

Finally, a very important issue that is related to chiller-plant control is the issue of interfacing with the person who is operating the system. Simplicity is important, and it gives the system a much better chance of working without intervention by the operator.

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