Recently, Delta built a smart building for a park in Hefei, utilizing the cross-building and cross-system ORCA system as a platform, to manage electromechanical equipment for air conditioning, ventilation, water supply and drainage, etc. in eight buildings, which improves operation and energy use of the equipment, reduces operational cost, and achieves information-based management. The property management eventually decided to introduce the Delta Controls building automation system after considering comprehensive factors such as the brand, product quality, technical capability, and level of services.

Delta Controls ORCA employs the BACnet network communication protocol, with open architecture that perfectly connects with various subsystems, provides a basis for data management and analysis

Delta Controls employs BACnet network communication protocol, which is compatible with devices of different manufacturers and different subsystems and features decent openness. With a clearly layered network structure that controls areas, systems, and equipment in hierarchy, it meets the requirement of "centralized management and distributed control" for advanced building systems. Through centralized allocation of power consumption for all equipment, under the premise of satisfying comfort, the building automation system minimizes the building's operating costs through reasonable control.