YORK 031-00940-001 Processor Board for Optimized Chiller Operation

Technical Specifications

Main Features and Advantages

The YORK 031-00940-001​ processor board is defined by its robust and deterministic control logic, specifically programmed for the complex thermodynamic and mechanical processes of a chiller. It manages critical sequences such as the step-loading and unloading of compressor cylinders or stages, precise control of the electronic expansion valve (EXV), and management of variable speed drives (VSDs) if equipped. Its embedded protection algorithms constantly monitor for faults like high discharge pressure, low suction pressure, high motor temperature, and phase loss, initiating safe shutdowns when necessary to prevent catastrophic equipment failure. The reliability of the YORK 031-00940-001​ is paramount, as it directly safeguards significant capital investment in the chiller system.Advanced system integration and diagnostics: A key advantage of the YORK 031-00940-001​ is its deep integration with the York control ecosystem. It seamlessly interfaces with the unit’s graphical display (like the OptiView control center), providing operators with a clear view of system status, setpoints, and active alarms. The board facilitates extensive data logging, storing historical operational data and fault records that are invaluable for troubleshooting and preventative maintenance. Furthermore, through optional communication modules, the YORK 031-00940-001​ can be the gateway for integrating the chiller into a building management system (BMS), allowing for remote monitoring, control, and optimization of the entire HVAC system from a central location. Its design prioritizes stability and longevity, utilizing industrial-grade electronic components capable of withstanding the typical vibrations and temperature variations found in mechanical rooms.

Application Field

The YORK 031-00940-001​ processor board is exclusively applied within large-scale commercial and industrial HVAC-R (Heating, Ventilation, Air Conditioning, and Refrigeration) systems. Its primary and most critical application is in the control of York centrifugal, screw, and scroll chiller packages. These chillers are the workhorses for cooling large buildings such as corporate offices, hospitals, universities, data centers, manufacturing plants, and shopping malls. In these facilities, the YORK 031-00940-001​ is responsible for managing the production of chilled water that is then circulated through air handlers and fan coil units to provide climate control. The precise algorithmic control enabled by this board ensures that the chiller output perfectly matches the building’s dynamic cooling load, maximizing energy efficiency and operational economy.Beyond standard comfort cooling, the YORK 031-00940-001​ also finds use in process cooling applications. This includes controlling chillers that provide precise temperature regulation for industrial processes, such as plastic injection molding, chemical production, pharmaceutical manufacturing, and food/beverage processing. In these scenarios, the controller’s ability to maintain a tight temperature setpoint is critical for product quality and production consistency. The board is also integral to chiller plants in district cooling systems. Ultimately, wherever a York chiller utilizing this specific control platform is deployed to provide reliable, efficient, and safe cooling, the YORK 031-00940-001​ serves as its indispensable central nervous system, making it a vital component for facility managers and HVAC service technicians worldwide.