Ceiling diffuser – PLI

PLI is a square ceiling-mounted air diffuser designed for flush installation in false ceilings. It offers compatibility to most of the common modular systems in the scandinavian market and is further adaptable to other ceiling systems. It features a recessed circular slot opening combined with an aerodynamically shaped rear section, enabling smooth 360-degree horizontal air diffusion. As supply air enters the room, the airflow adheres to the ceiling surface due to the Coanda effect, minimizing the risk of draughts in the occupancy zone, even at low airflow rates or when supplying cooler air.

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  Flush installation

  The recessed slot design creates a clean, uniform surface. This discreet integration supports a seamless architectural finish, ideal for offices, retail, and other visually sensitive spaces.

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  Draft free indoor climate

  PLI can handle supply air up to 10°C below room temperature while maintaining comfort in the occupied zone. The 360° spread pattern, combined with the Coanda effect minimizes the risk of draughts even at high cooling demand.

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  Active version for DCV solutions

  PLI is intended for supply air in CAV applications, but is also available in an active motorized version under the name ICONiQ-I, intended for our demand-controlled solutions in DCV system ControlAir SYS. The active version is also supplied in a version with an integrated occupancy detector in the front plate.

Optimal circulation

As supply air exits the diffuser at high velocity, it forms a narrow jet that entrains surrounding room air – a process known as the induction effect. This draws ambient air into the airstream, resulting in rapid mixing between supply and room air. At the same time, the jet tends to follow the ceiling surface due to the Coanda effect, which extends the throw distance before the mixed air descends into the occupied zone. The combined effect balances room temperature, and enhances thermal comfort.

Consistent appearance

The PLI features a standardized front panel that remains identical regardless of the duct connection size. This allows airflow and performance to be adapted to room needs without altering the visible design. Whether in open-plan areas or smaller spaces, the consistent faceplate ensures a clean, unified appearance that aligns with modern interior design standards.

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  ECO-friendly insulation

  Installation with a commissioning box reduces noise levels, which is important in most premises. The box’s sound-absorbing insulation is both effective and environmentally friendly, contributing to a reduced carbon footprint.

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  Easy installation and maintenance

  The diffuser is designed for quick, secure installation in standard modular ceilings. Removal of the front plate requires no tools and allows easy access to the commissioning box and its components during installation, commissioning and maintenance.

Learn more

Explore further details through the links below