Return air grilles
Applications:
Return air grilles, with or without filters, are the terminal elements of a manifold HVAC system, providing evacuation or recirculation of room air. They may be installed on walls or ceilings.
Description:
Return air grilles are provided with one row of fixed blades, made of semi-round profiles, displayed horizontally or vertically, based on client΄s demand. Blades are fastened with a peripheral gasket made of silicon rubber (this material is inert to temperature variations and ageresistant), flush- mounted, preventing accidental release. This is also a method to prevent possible noises that may occur in time due to air flow and operating micro-vibrations.
If specified in order, grilles may be provided with detachable filter, with frame - MFF. For quick dismantle and easy access for inspection or routine maintenance, they may be ordered with additional frame. The latter shall remain fixed to the installation spot, allowing only the actual grille to be dismantled. On request, this additional frame may be provided with magnetic support elements. In both cases, the rated sizes (specified in order) shall be the frame sizes.
For an improved adjustment of the air flowrate, the use of OBD dampers is recommended.
