dac controls the nerve centre of the built environment

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Featured Project

Doust Automation & Control (DAC) features the Faculty of Law at the University of Sydney.

The Faculty of Law was one of the major three capital investment projects recently completed under the guidance of the Sydney University. The other two being the Central Building new development and the redevelopment of the Madsen Building, also completed by DAC.

The systems within the Faculty of Law promote the learning environment and are designed to minimize energy usage. The displacement systems incorporate air-to air heat exchangers delivering air to the active chilled beams, ensuring the mechanical services fosters the ambiance by minimizing white noise in the vast library. Natural ventilation utilizing the “chimney” effect between the upper and lower levels operates in unison with the weather station to deliver efficiencies under the correct outside conditions. 


Internal blinds are controlled via a sun tracking program to reduce the solar load on glass faces. The north east, north west, south east and south west façades of Levels 4, 5, 6 and 7 are fitted with sun tracking cavity façade shading louvers to also reduce solar load. Strategically located carbon dioxide sensors allow logical decisions to provide the highest quality indoor air.

The two hundred and seventy one offices include an individual dedicated intelligent user interface and integrated controller. This controller is specifically designed to “on-board” switch mains power for the three speed fan, removing the requirement of additional interfacing relays. Should the room mounted PIR not detect an occupant during occupancy times the setback function will manipulate the setpoint to minimize energy usage.
The major Utilities are constantly monitored and logged via the thirty six energy MODBUS meters, the twelve energy pulse meters, the four water pulsed meters and the natural gas pulse meter. The purpose built BMS pulse device offers monitoring of 0 to 2000Hz pulses and a high degree of pulse data integrity. The pulse device will retain data during a power failure resuming operation and counting upon power restoration. The information can be archived based on different parameters to an unlimited archive package.

The nearly 3,000 point Faculty of Law BMS was connected to the campus network on time and to the great satisfaction of Baulderstone and Hastie Australia Pty Ltd. “Hastie and DAC developed a great working relationship during the project. We were very pleased with the professionalism of DAC, their engineering knowledge and ability. Their site staff were pro-active and worked with us and other trades to ensure the delivery of an excellent end product." stated Mr. Khaled Elsawi, the Hastie Australia Project Manager. Mr. John Chung, the end user added "I have been handed a very good control system, which is a great achievement considering the size and complexity of this building."