lindab | we simplify construction Active chilled beam Premum Optimal functions Premum is based on the induction principle. Ventilation air is released through the nozzles into a dispersal zone, thereby creating a low static pressure. The low pressure causes the warm air from the room to be induced into the ventilation air through the battery. The volume of the recir- culated indoor air is two to seven times the ventilation air. The air is cooled as it passes through the battery, which consists of aluminium fins with copper pipes filled with cold, running water. The heat from the room is absorbed through the aluminium fins and then transferred through the copper pipe to the water circuit and goes further to a central cooling unit. Premum can also be delivered with an exhaust air valve, on request. JetCone and Angled Nozzles The opening size of the nozzles can be adjusted, by oper- ating the adjustment pins in each corner of the beam. The air distribution can also be adjusted, to achieve different amounts of air on either side of the beam, or to achieve an asymmetrical air pattern along the side of the beam. All thanks to our patent pending JetCone system. The Lindab Angled Nozzles system successfully com- bines the Jetcone air volume adjustment with a preset air spread pattern. The combination of the Jetcone and the Angled Nozzles systems results in reduced throw lengths and optimized air volume regulation. The design is made to secure the coanda effect and a fan-shaped air pattern. The adherence of the air to the beam already occurs at the JetCone opening. Then, due to the coanda effect, the air follows the side of the beam towards the ceiling. Air duct Copper pipes Coanda effect Cooled air Warm indoor air Actuators Air duct Copper pipes Battery Detachable faceplate Picture 1. Premum is based on the induction principle. Lindab reserves the right to make changes without prior notice 3 2020-11-16
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