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More than 450 fan coil units have been installed in a totally flexible, web-enabled open system that serves the 11 floors in a new 11,000 sq ft development fronting Arthur Street and Lower Thames Street in London.
Each fan coil unit was equipped with a programmable LON controller which,in conjunction with a return air sensor, provides sequencing to assist with the control of cooling valves and thyrister-controlled electric heater batteries as well as devices for the integration of sub networks of LON controllers.
All floors were provided with a Tridium web-based universal LON network controller to give a global programming capability. Additional Tridium controllers on the TCIP Ethernet backbone were used within the five main control panels for the control and monitoring of primary plant Wokingham-based Integrated Control Systems carried out the design,integration and installation of the open system under a £250,000 contract awarded by HBG. The system’s ‘open’ design enabled ICS to improve functionality within the overall project by selecting items of LON devices from the wide range offered by different manufacturers,including Honeywell modules and the central supervisor.
The end result is a user friendly system with a web server capability for access via the Internet that allows remote access and alterations to set points,operating parameters etc,and a flexibility that will enable the building to be occupied by a single company or be multi tenanted.
