5-Outlet Single-Row Ventilation Manifold and Air Distribution Box

A 5-outlet single-row HRV distribution box is a specialized ventilation manifold designed for HVAC distribution systems where space-efficient, parallel duct routing is required. The key feature of this linear air distribution box is the alignment of all outlets in a single row, which significantly simplifies the installation of semi-rigid ducts in one direction. The unit is available with three types of branch connections: galvanized steel (OC), plastic (PK), or rubber (GM).

Where is it used?

This linear manifold is widely used in residential and commercial heat recovery ventilation (HRV) systems, particularly in narrow technical spaces, corridors, or suspended ceilings. The single-row configuration optimizes the routing of 75 mm flexible ducts, allowing them to run parallel to each other, which reduces the required mounting width and ensures a cleaner, more organized installation in restricted areas.

Design Features and Benefits

• Load-resistant steel casing: The rigid galvanized steel construction ensures durability and protects the internal air distribution channels from deformation when installed behind structural elements.
• Linear space optimization: The single-row outlet arrangement allows for a narrower manifold footprint, making it the ideal choice for side-wall mounting or narrow ceiling voids.
• Universal compatibility: All five branches are precisely calibrated to securely connect with standard 75 mm flexible ventilation pipes.
• Insulation options: For systems installed in unheated attics or cold technical zones, insulated versions (index I) with built-in mineral wool are available to prevent condensation and provide acoustic dampening.

Branch Connection Options

The material of the branch connections determines the thermal performance of the connection and the fixing method:

• OC (Galvanized steel): A high-strength, traditional solution. Rigid metal branches provide maximum mechanical integrity for the junction.
• PK (Plastic): Features polymer branches with integrated red fixing rings that firmly lock the flexible duct, speeding up the installation process and reducing thermal bridging.
• GM (Rubber): Equipped with elastic seals for a friction-based, airtight fit. This design ensures high levels of airtightness and contributes to vibration dampening within the air distribution box.

Technical Specifications

Dimensions (L x W x H)

The overall dimensions vary slightly depending on the branch connection type selected:

• OC model (Galvanized): 436 x 251 x 152 mm
• PK model (Plastic): 468 x 251 x 152 mm
• GM model (Rubber): 436 x 251 x 152 mm