Heatpex expansion box 3x75 HEATPEX ARIA, model 523375001

The Heatpex expansion box 3x75 HEATPEX ARIA, model 523375001, is a compact metal and plastic junction and distribution box designed to connect three 75 mm ventilation pipes or ducts. Intended for use in HVAC and ventilation systems, this box provides an organized connection point that simplifies routing, inspection, and maintenance while maintaining a neat installation in residential and commercial applications.

Advantages

The combination of metal and plastic construction offers mechanical strength where needed and corrosion resistance in internal areas. Its three-branch layout for 75 mm ducts enables compact manifold-style distribution, reducing the number of visible connections and saving space. The unit is designed for straightforward access during inspection and service, and its materials and shape support reliable long-term operation in typical indoor ventilation environments.

Suitable for

• Connecting and distributing three 75 mm ventilation ducts in residential ventilation systems
• Compact manifold point for small commercial HVAC installations
• Routing duct runs where space is limited or multiple branches are required
• Installation points that require periodic inspection and maintenance access

Key specifications

• Number of outlets: three branches for 75 mm ducts
• Construction: metal and plastic components for strength and corrosion resistance
• Function: junction and distribution box for ventilation ducts
• Application environment: indoor HVAC and ventilation networks in residential and commercial buildings

How to use

Install the expansion box at the chosen junction point in the ventilation route, ensuring it is positioned to allow access for future inspection. Secure the unit to the supporting structure following local installation practices and connect three 75 mm ducts to the corresponding ports using appropriate clamps or sealing methods to ensure airtight joints. Verify alignment and clearances before final fixation, and perform a leak and airflow test after installation to confirm correct operation.

Usage recommendations

Use the expansion box in dry indoor environments and avoid exposure to aggressive chemicals. Seal joints with suitable duct sealant or tape to maintain system efficiency. When installed in commercial or complex HVAC systems, incorporate the box into the overall ventilation design and follow applicable building and ventilation standards for safe and effective operation.