CHILLED WATER CONTROL SYSTEMS

The challenge for design engineers is just how to maximize the comfort requirements while keeping energy costs to a minimum. This is best achieved by not only properly controlling each individual component of a chiller plant but also effectively controlling the entire system.

Within the framework of the basic control strategy, there are a number of control subsets that provide equipment operating limits and safety controls. These control functions are essential to safely operate the equipment within the design parameters and guidelines of the manufacturer. Controls can be as simple as an on/off fan based on a fixed leaving water temperature, or two-speed motors or variable frequency drives (VFD) or a custom controls panel to maintain a fixed set-point. Other features include a color touch screen interface, alternation sequences, trending logs and sensors in order to control the system per customer specifications.