Description


PremiAir is an air- and water-based induction unit with four-way air diffusion, recommended for a wide range of commercial applications—such as office buildings, shopping centers, retail stores, restaurants, and hotels—where a combination of ventilation, cooling, and/or heating is required. PremiAir is designed primarily for false-ceiling installations, but is also available with an optional Coanda frame, or can be supplied with a powder-coated housing for visible mounting. For added flexibility, PremiAir can be delivered with adjustable nozzles that enable reconfiguration of the primary airflow at any time to meet changing space requirements. The nozzles are positioned to maximize the coil’s capacity and optimally mix the primary supply air with the induced room air. This results in a well-conditioned space, enhancing both thermal and acoustic comfort for occupants. For additional flexibility and efficiency, PremiAir can be equipped with a digital controller specifically developed for DCV (Demand-Controlled Ventilation) requirements.

Function

The function of active chilled beams is based on the wellknown induction principle. The primary (dried) air from the air handling unit is injected into the plenum box within the active chilled beam and distributed through specially shaped nozzles. As the air is discharged through these nozzles, the high-velocity air jets above the coil create a low-pressure zone, which draws ambient room air through the coil. As it passes the coil fins, this drawn-in air is conditioned (cooled or heated) according to the water temperature in the coil. The conditioned air then mixes with the air jets before being discharged back into the occupied space. The careful placement and shape of the nozzles have a major impact on both the performance of the chilled beam and its sound emissions. It is important that the primary air from the air handling unit is sufficiently dry to maintain a low indoor dew point and prevent condensation. Because water is a more effective medium for heat transfer compared to air, chilled beams are an outstanding energy-efficient solution, reducing the overall energy needed for cooling, heating, and ventilation.

Standard sizes

600x600, 1200x600, 1800x600

Airflow range

43 - 306 m^³/h (12-85 l/s)

Main characteristics

• Water- and air-based system
• Four-way air diffusion
• Elegant, compact design
• High cooling and heating capacity
• Flexible use with adjustable nozzles and AirFlex air deflectors
• Silent, energy-efficient and draught-free operation
• No moving parts, practically maintenance-free
• Optional control solution