Chiller Optimization Management
Optimize efficiency for water-cooled and air-cooled chilled water plants with a tailored control system, seamlessly integrating into retrofits and new constructions

Overview
The control optimization system manages the operation of water-cooled centrifugal and air-cooled chilled water plants. It holistically optimizes performance by monitoring and controlling five interdependent subsystems: cooling towers, condenser pumps, chillers, chilled water pumps, and air-handling units.
The system is customized to fit the unique design of each chiller plant and its associated building loads. It maintains optimal differential pressure across the system, manages chiller lift by addressing flow issues under part-load conditions, and increases deliverable tonnage.
Although it does not require expensive variable frequency drives (VFDs) for chiller compressor motors, the control strategy does require VFDs for all ancillary components—including primary and secondary chilled water pumps, condenser water pumps, and cooling tower fan motors—to achieve optimal part-load efficiency. In some cases, additional piping and valve modifications (e.g., converting from 3-way to 2-way) may be needed, depending on the existing system’s age and design.
The system is chiller-brand agnostic and compatible with most building automation systems (BAS) that use BACnet or Modbus TCP/IP. It can be installed as a retrofit without voiding equipment warranties, and is equally suited for major renovations or new construction projects.
A typical System Architecture of Chiller Control Optimization System

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