Manifold assembly - without cabinet, 1" x EC, 8-way

Product detailed description

This manifold assembly is commonly used in residential and commercial heating systems where balanced distribution of hot water is required. It is suitable for radiator heating or sanitary water distribution systems that do not require a circulation pump. The assembly is typically installed in central heating units or underfloor heating systems where multiple circuits are needed. Installers should ensure the system is fully flushed and prepared before commissioning to avoid blockages and inefficiencies.

When integrating into a system, the manifold is positioned in the highest accessible location to facilitate air venting. This is particularly important in mixed systems combining radiator and underfloor heating. The assembly is constructed from nickel-plated brass and is rated for a maximum operating temperature of +120 °C and a nominal pressure of PN 10. It is recommended for use in systems with a temperature differential of +75 °C / +65 °C.

Technical parameters

Distance between outlets	50 mm
EAN	8595145902873
Weight	6.081 kg
Code	551766N
Brand	IVAR

The 50 mm spacing between outlets allows for precise alignment with standard radiator or underfloor heating pipe layouts. The 3/4 inch EK (European Cone) connections require compatible fittings to ensure a secure and leak-free seal. The nominal pressure rating of PN 10 and maximum temperature of +120 °C are essential for determining system compatibility and long-term reliability.

Installation and connection

The manifold assembly is connected using 1 inch female threaded inlets and 3/4 inch EK outlets. Before installation, verify that all connections are clean and free from debris to prevent blockages. Mounting brackets are included for secure installation, and the unit should be positioned in the highest accessible location to allow for proper air venting. A common mistake is failing to flush the system thoroughly before commissioning, which can lead to reduced efficiency and potential blockages. Ensure all ball valves are fully open during initial operation to allow for proper circulation.

Compatibility and accessories

This manifold is compatible with standard radiator and underfloor heating systems. It is typically used with 3/4 inch EK-compatible fittings and valves. Additional components such as circulation pumps, expansion vessels, and balancing valves may be required depending on the system configuration. No related products are listed for this model.

Technical background for designers

The manifold operates by dividing and collecting hot water from multiple circuits, ensuring even distribution and return flow. The nickel-plated brass construction (CW617N) provides resistance to corrosion and ensures long-term durability. The system's efficiency is influenced by proper sizing, correct installation, and the use of compatible components. The absence of a built-in circulation pump means that the boiler or external pump must provide sufficient flow and pressure for the system to function correctly.

Service and operation

Regular system flushing is recommended to remove debris and prevent blockages. Before commissioning, especially in mixed systems, a thorough flush using a preparation such as GEL.POLY A.P. is advised. The manufacturer notes that functional issues caused by system impurities are not the seller's responsibility. No specific service intervals are provided, but ongoing monitoring of system performance is recommended to ensure optimal operation.

Frequently asked questions

Can this manifold be used in a mixed radiator and underfloor heating system?
Yes, it is suitable for mixed systems provided the underfloor heating circuits are properly isolated from the radiator return to prevent thermal interference.

Is a circulation pump required for this manifold?
No, the manifold is designed for use without a built-in pump. The boiler or an external pump must provide the necessary flow and pressure.

Can this manifold be installed in a vertical position?
It is recommended to install the manifold in a horizontal position to ensure proper air venting and flow distribution.

What is the maximum operating temperature for this manifold?
The maximum operating temperature is +120 °C as specified in the technical data.