6-Outlet Double-Row Ventilation Manifold and Air Distribution Box

A 6-outlet double-row HRV distribution box is a specialized ventilation manifold designed to distribute airflow from the main duct to six separate air outlets. The defining feature of this model is the double-row arrangement of the branch connections. This configuration significantly reduces the overall width of the unit (only 251 mm), making the air distribution box highly compact and saving valuable installation space. The unit is available with three types of branch connections: galvanized steel (OC), plastic (PK), or rubber (GM).

Where is it used?

This double-row manifold is widely used in residential and commercial heat recovery ventilation (HRV) systems. The compact width makes it exceptionally well-suited for installation in narrow wall niches, vertical ventilation shafts, or restricted technical cabinets where lateral mounting space is strictly limited.

Design Features and Benefits

• Load-resistant steel casing: The rigid galvanized steel construction ensures long-term durability and protects internal air distribution channels from deformation during concealed installation under structural pressure.
• Space-saving footprint: The double-row layout minimizes the manifold's width compared to single-row alternatives, providing a critical mounting advantage in confined architectural spaces.
• Condensation protection: For systems operating with cold outdoor air or installed in unheated zones, insulated versions (index I) featuring a built-in mineral wool layer are available to prevent internal condensation and improve acoustic performance.

Branch Connection Options

The selected material for the branch connections defines the duct fixing method and the overall thermal performance of the connection:

• OC (Galvanized steel): A traditional, high-strength solution. Rigid metal branches provide maximum mechanical integrity for the junction. Ducts are typically secured using standard hose clamps or reinforced sealing tape.
• PK (Plastic): Equipped with polymer branches featuring special fixing rings that firmly lock the flexible duct, speeding up the installation process and reducing thermal bridging.
• GM (Rubber): Branches feature elastic seals for a friction-based, airtight fit. This design ensures high levels of airtightness and contributes to vibration dampening within the ventilation network.

Technical Specifications

Dimensions (L x W x H)

Please note that the overall dimensions vary depending on the chosen branch type and main inlet diameter:

• OC model (Galvanized): 262 x 251 x 182 mm (160 mm inlet) / 262 x 251 x 222 mm (200 mm inlet)
• PK model (Plastic): 278 x 251 x 182 mm (160 mm inlet) / 278 x 251 x 222 mm (200 mm inlet)
• GM model (Rubber): 262 x 251 x 182 mm (160 mm inlet) / 262 x 251 x 222 mm (200 mm inlet)