ERD – Round face 580mm diameter, to suit plasterboard ceilings, neck sizes available: 150mm, 200mm, 250mm, 300mm and 350mm.
ECD – Square face, 595mm x 595mm overall for lay in tile replacement, neck sizes available: 150mm, 200mm, 250mm, 300mm, 350mm.
ECD – Lay-in tile replacement (flange for surface mounting) Direct duct connection via diffuser neck.
ERD – Round diffuser bayonet fixing to suit plasterboard ceiling.
*Diagrams for reference purposes only
The diffuser carefully regulates the airflow into each zone, preventing the energy wastage and poor indoor
air quality caused by over and under-ventilation, respectively. When less ventilation is required, the aperture
of the diffusers decreases, creating a build-up of pressure in the system. Detecting this, the DCV control
re-normalises the pressure by reducing the fan speed accordingly.