The Korea Expressway Corporation (KEC) is a large company with over 4,500 employees responsible for construction and maintenance of expressways in South Korea.
In 2013, AET Flexible Space received an order through its Korean distributor Shinsung Engineering for underfloor air conditioning equipment for the corporation’s new 30,000m2 headquarters. AET Flexible Space equipment was specified for a total of 24,000m2 over 19 floors, sized at 1,200m2 for each floor, located in the tower part of the new-build construction. The underfloor system was specified because of its height-saving capabilities, flexibility and speed of construction.
The AET underfloor systems use the plenum beneath raised floors as the ventilation duct, eliminating the need for ceiling-based ductwork and potentially reducing the height of new-build construction by up to 10%, as well as making it easy and economical to adapt to changes in the workplace. Conditioned air is introduced into the space via floor-recessed fan terminal units called Fantiles, which are easily relocated with the 600mm x 600mm raised floor tiles and which also feature integrated controllers that allow users to personally adjust temperature and fan speed settings. The CAM-V units introduce conditioned air at floor level into the plenum beneath the raised floor and then receive return air at high level for reconditioning. This system is ideal for easy reconfiguration as there is no division of the plenum into supply and return channels.
Large-size CAM-V zonal air-handling units were specially developed for the KEC project; the CAM-V100 and CAM-V150 are capable of supplying air volume at up to 16,500m3/hr. The conditioned air is supplied into the workspace via 800 TU4 Fantiles, incorporating EC fan technology for minimal energy consumption – another recent product development by AET Flexible Space. This installation was also one of the first AET Flexible Space projects to incorporate its Flexvisor remote monitoring system, which connects the 19 zones and interfaces with the main building management system. Flexvisor also permits remote adjustment of zone setpoint and Fantile units by authorised users, making it easy to keep the system operating at optimum configuration. Flexvisor was supplied with functionality in Korean by client request.
Other large international projects featuring AET Flexible Space equipment include the 25,000m2 Kuwait State Audit Bureau, the 10,000m2 Majid Al Futtaim Tower II in Dubai, the 60,000m2 Nina Tower in Hong Kong, the 80,000m2 Parkview Green in Beijing, the 100,000m2 Microsoft Campus in Shanghai, the 200,000m2 International Port Cruise Terminal in Shanghai and the 100,000m2 The Center in Hong Kong, among many more.