12-Outlet Square Ventilation Manifold and Air Distribution Box

The square distribution manifold (OC) is a ready-to-use solution for balanced airflow distribution from a single main duct to twelve separate ventilation points. Its square casing allows for a convenient, radial duct layout in all directions. This unit is suitable for both new installations and HVAC retrofitting. Please note that this specific model is exclusively equipped with heavy-duty galvanized steel (OC) branch connections.

Where is it used?

This duct manifold is widely used in residential and commercial heat recovery ventilation (HRV) systems. The compact, low-profile design (82 mm casing height) allows the air distribution box to be easily concealed within suspended ceilings or wall niches without reducing the effective volume of the room. The square form factor is particularly advantageous when the manifold is centrally located in a building or room, facilitating efficient 360-degree airflow distribution.

Design Features and Benefits

• Load-resistant steel casing: Galvanized steel prevents corrosion and maintains its structural integrity during concealed installation under the pressure of building materials.
• Symmetrical distribution: The arrangement of outlets along the entire perimeter simplifies the routing of semi-rigid flexible ducts in multiple directions, reducing the need for sharp duct bends.
• Secure duct fixation: Special engineered indentations on the metal branches prevent the spontaneous disconnection of the flexible ventilation channels.
• Rapid installation: Built-in mounting brackets allow the manifold to be securely fixed to the ceiling or wall without requiring additional mounting hardware.

Insulation Options

Depending on the operating environment, the manifold can be supplied in two configurations to ensure optimal thermal performance:

• Standard version: Designed for installation within heated indoor environments where temperature fluctuations are minimal.
• Insulated version (Index I): Equipped with a built-in layer of mineral wool. This is the optimal choice for unheated attics, cold technical spaces, and HVAC distribution systems operating with cold outdoor air, effectively preventing internal condensation and thermal loss.

Technical Specifications

Dimensions (L x W x H)

The overall dimensions for the square galvanized model are standard across both main inlet sizes:

• OC model (Galvanized): 266 x 262 x 82 mm (160 mm or 200 mm inlet)