6-Outlet Asymmetric Ventilation Manifold (Offset Inlet)

An asymmetric HRV distribution box is a specialized ventilation manifold designed to distribute airflow to six separate points. The primary design feature of this model is the offset main connection, positioned near the edge of the wide casing panel. This layout makes the manifold truly universal (L/R reversible): during installation, the unit can simply be rotated to position the main inlet on the required side. The manifold is available with three types of branch connections: galvanized steel (OC), plastic (PK), or rubber (GM).

Where is it used?

This air distribution box is specifically engineered for heat recovery ventilation (HRV) systems where the ductwork follows a complex geometry. The low-profile design (85 mm casing height) and offset inlet make it an ideal solution for concealed installation in tight ceiling voids, room corners, or directly against structural columns and walls.

Design Features and Benefits

• Universal L/R installation: The offset connection allows the same manifold to be used for either left-side or right-side ducting, significantly simplifying the design and installation of the ventilation route.
• Load-resistant steel casing: Rigid galvanized steel ensures mechanical durability and protects the internal air distribution channels from deformation when installed under structural pressure.
• Condensation and noise protection: For installations in unheated zones or for systems handling cold outdoor air, insulated versions (index I) featuring a built-in mineral wool layer are available. This insulation effectively prevents internal condensation and provides additional noise reduction.

Branch Connection Options

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

• OC (Galvanized steel): A traditional, high-strength solution featuring rigid metal branches for maximum junction durability.
• PK (Plastic): Equipped with polymer branches and integrated fixing rings for the fast and secure attachment of flexible ducts. Plastic components reduce thermal conductivity, minimizing the risk of condensation at the joints.
• GM (Rubber): Elastic rubber seals ensure the tightest possible friction-based fit for the ducts, guaranteeing a high airtightness class for the entire distribution node.

Technical Specifications

Dimensions (L x W x H)

Overall dimensions depend on the main inlet diameter (dimensions remain consistent for OC, PK, and GM modifications):

• 160 mm inlet version: 730 x 183 x 85 mm
• 200 mm inlet version: 770 x 223 x 85 mm