Assembly manifold for heating elements - without cabinet, 1" x EC, 7-way

Product detailed description

This 7-way assembly manifold is used in radiator-based heating systems or sanitary circuits where a central distribution point is required. It is commonly installed in residential and commercial buildings to manage flow distribution across multiple heating zones. The unit is designed for systems operating at PN 10 pressure and up to 120°C, making it suitable for traditional radiator heating or combined systems with sanitary circuits. It is typically installed in accessible locations to allow for maintenance and inspection, and it is recommended to be placed at the highest point in the system to facilitate air venting. The manifold is supplied without a cabinet and includes all necessary fittings for immediate installation.

When integrating into a system, this manifold is typically used in conjunction with a boiler and a circulation pump. It is not designed for low-temperature floor heating applications unless specifically configured. The unit is suitable for systems with a temperature differential of 75°C to 65°C, ensuring efficient heat transfer. The absence of a built-in circulation pump means the boiler must provide the necessary flow. Before commissioning, especially in mixed systems, a thorough system flush is required to remove debris and ensure long-term reliability.

Technical parameters

Distance between outlets	50 mm
EAN	8595145902477
Weight	6.423 kg
Code	551755N
Brand	IVAR

The 50 mm spacing between outlets ensures compatibility with standard mounting brackets and allows for even distribution of heating elements. The 1 inch inlet and 3/4 inch EK outlets are standard for most central heating systems in Europe, ensuring broad compatibility with existing piping and fittings. The maximum operating temperature of 120°C is suitable for most radiator-based systems but not for high-temperature industrial applications.

Installation and connection

The manifold is installed using the included mounting brackets, which are fixed to the wall or floor according to the system layout. The 1 inch inlet is connected to the main supply using a female thread, while the 3/4 inch EK outlets are connected to individual heating circuits. Each outlet is terminated with a 1/2 inch plug or a combination of an automatic air vent and a swing drain valve. It is essential to ensure that all connections are tightened to the manufacturer's torque specifications to prevent leaks. A common mistake is incorrect orientation of the air vent, which can lead to poor system performance. Before commissioning, the system should be flushed to remove any debris that could block the valves or damage the boiler.

Compatibility and accessories

This manifold is compatible with standard radiator systems and can be used with a variety of heating elements, including panel radiators and underfloor heating circuits. It is not designed for use with high-pressure systems or industrial heating applications. Additional components such as circulation pumps, thermostatic valves, and expansion vessels may be required depending on the system configuration. Accessories such as cabinets, insulation, and mounting brackets are not included and must be ordered separately.

Technical background for designers

The manifold operates by dividing the incoming flow into multiple branches, each of which is connected to a heating element. The nickel-plated brass CW617N construction ensures resistance to corrosion and long-term durability in hot water environments. The EK (European coupling) connections allow for quick and secure assembly without the need for additional fittings. The system's efficiency is influenced by the correct sizing of the manifold and the balance of flow across the branches. Incorrect sizing or poor balancing can lead to uneven heating and reduced system performance. The design also includes an automatic air vent to ensure continuous operation by removing trapped air from the system.

Service and operation

Regular inspection of the air vent and drain valve is recommended to ensure they remain functional. The system should be flushed periodically to remove sediment and debris that can accumulate over time. No specific service intervals are provided in the brief, but it is advisable to follow the manufacturer's maintenance guidelines. In the event of a blockage or malfunction, the system should be isolated and inspected for debris or corrosion. The manifold is not designed for high-pressure cleaning, and excessive force should be avoided when tightening connections.

Frequently asked questions

Can this manifold be used in a mixed floor and radiator heating system?
Yes, but a thorough system flush is required before commissioning to prevent blockages. A circulation pump may also be necessary to ensure balanced flow.

Is a circulation pump included with the manifold?
No, the manifold is supplied without a circulation pump. The boiler must provide the necessary flow, or an external pump must be installed.

Can the manifold be installed in a vertical position?
Yes, but it is recommended to install it horizontally to ensure proper air venting and flow distribution.

What is the maximum number of heating elements that can be connected?
Seven heating elements can be connected, as the manifold has seven outlets. Additional manifolds may be required for larger systems.