Aluminum line grille with 4 adjustable perforated panels – 2000 mm – RAL 9010 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 4 Adjustable Blade Patterns – 2000 mm – RAL 9010 + Insulated Plenum with Airflow Control Damper

The combination of the insulated plenum and aluminium linear diffuser with four adjustable blade patterns forms a complete set for silent, even air supply in spaces where comfortable and draught-free air distribution is desired, such as large office buildings, shopping centres, auditoriums, and other commercial projects with high ventilation demands. The linear diffuser is made from extruded aluminium in RAL 9010; the plenum from galvanised steel with sound-absorbing insulation. Both components are matched and function as a single unit: the plenum distributes the supply air evenly along the full slot length of 2000 mm, while the diffuser optimally directs the airflow into the room via four adjustable deflector profiles. With four slots, this linear diffuser combines the highest capacity in the range with the draught-free air distribution characteristic of the Econox system. Thanks to the Coanda effect, the air flows along the ceiling without draughts, ensuring a comfortable indoor climate in the occupied zone.

Benefits and Features

• Complete set including mounting accessories: The plenum and diffuser are designed to work together and are supplied with the necessary mounting bracket and Allen screws.
• Quiet operation thanks to sound-absorbing insulation: The insulated plenum dampens noise from the duct while minimising sound nuisance.
• Precisely adjustable airflow: The integrated airflow control damper allows for accurate balancing during commissioning.
• Draught-free air distribution via Coanda effect: The diffuser directs airflow along the ceiling, ventilating the occupied zone comfortably without direct air jets.
• Maximum ventilation capacity: With four profiles, this diffuser is the most powerful version in the range, suitable for spaces with the highest ventilation requirements.

Installation and Applications

The diffuser is mounted from below onto the plenum using the supplied galvanised mounting bracket. For connection, the air intake deflector is rotated 90°, after which the diffuser is easily secured from underneath onto the plenum. The plenum then connects to the ventilation duct via a circular connection. Thanks to its compact build height, the set also fits ceilings with limited free space. After installation, the diffuser’s deflectors can be manually adjusted for horizontal or vertical airflow direction. The set is suitable for offices, retail spaces, schools, restaurants, hotels, and other commercial buildings.