A Chilled Beam takes a source of primary air at an inlet static pressure ranging from 0.4" to 1” of WC. It distributes this air through a bank of specially designed aerodynamic nozzles and discharges the air at a high velocity into a mixing chamber. This creates a differential pressure which enables a draw of room air across a coil. This imparts either sensible cooling or heating to the air as it passes over the coil. The primary air and induced air are mixed and discharged through a grille in a coanda effect air distribution at the ceiling. This air circulates throughout the room and is gently drawn back up through the return section of the Chilled Beam grille. Because the return air to the terminal is located at the ceiling and is moving so gently, dirt is not carried along with it and filters are not required to protect the coils. This eliminates the cost and labor required for this routine maintenance.
Chilled Beams are extremely flexible and enhance the savings and effectiveness of primary air systems such as those using dedicated outside air. When using our Chilled Beams, the primary air system, which includes the dedicated outside air unit and the supply and exhaust ductwork, can be sized to handle only the required ventilation air. This reduces the size of the equipment and ductwork making it easier to fit into a building space. This also reduces the energy required to supply the ventilation to the building. The total room air circulation is created solely by the induction principle within the terminal; therefore, there is no electric motor requiring an electric power source or maintenance for a fan and motor. As a result, the Chilled Beam is a very quiet and efficient way to provide comfort in a space.