Chilled beams not only provide heating, cooling and ventilation air, they are the air distribution component that delivers good thermal comfort. Being able to adjust the airflow pattern from the chilled beams is critical to delivering optimal occupant comfort. As the building use evolves (re-purposing) the space loads and layouts change often requiring air pattern adjustments to maintain thermal comfort.
To achieve air pattern control Swegon chilled beams can adjust the airflow pattern by means of Anti Draught Control (ADC). ADC consists of a number of sections with adjustable fins arranged in the outlet of the unit with a simple grip of the hand, the fins can be set to an appropriate angle in 10 degree increments to direct the discharge air and in this way create the desired air distribution pattern.
The ADCs are adjusted to spread the primary and induced airflow evenly in all directions across the ceiling for maximum even air distribution.
The ADCs deliver an X pattern airflow that avoids the airflows from to adjacent beams running into each other and breaking away from the ceiling resulting in “dumping”. The X pattern allows more chilled beams in the ceiling for increased cooling capacity (i.e. a computer classroom) without compromising thermal comfort.
The ADC biases the airflow pattern in one direction to increase throw and focus cooling or heating capacity yin a particular part of the room such as an exterior wall. Alternatively, if the space is repurposed and a new partition is built near the chilled beam, the airflow pattern can be directed away from the partition avoiding relocating the chilled beam.