Manifold/collector assembly - for underfloor heating - without cabinet - 1 "xEK; 4-way; brass IVAR.CS 553 VP

Product detailed description

Underfloor heating systems in residential and commercial buildings require precise flow distribution and return collection to ensure even heat distribution. The IVAR 553972BS manifold/collector assembly is designed for such applications, where four circuits are needed to manage individual zones. This unit is typically used in conjunction with radiant floor panels, insulation layers, and heat emitters, ensuring balanced operation and thermal efficiency. Installers should verify system compatibility with the manifold’s pressure and temperature limits before integration.

Correct installation of this assembly is crucial for system performance. The unit is intended for use in dry and semi-dry environments, where it can be mounted without an enclosure. It is commonly used in new builds or renovations where underfloor heating is integrated with other heating methods, such as radiators. The assembly includes all necessary components for immediate connection to the heating system, including flow control valves and shut-off valves.

Technical parameters

Installation and connection

Installation involves securing the manifold to a flat surface using the provided mounting brackets. The 1 inch EK connection size requires matching pipe fittings for secure and leak-free connections. Each circuit is equipped with a flow control valve and a shut-off valve, which must be checked for full opening before system activation. A common mistake is incorrect orientation of the flow and return circuits, which can lead to uneven heat distribution. Always verify the direction of flow and ensure all valves are fully open during commissioning.

Compatibility and accessories

This manifold is compatible with standard underfloor heating systems using polyethylene or copper piping. Additional components such as circulation pumps, expansion vessels, and balancing tools may be required depending on the system design. The unit is supplied without a cabinet, so installers should consider the need for protection in exposed environments. No alternative or related products are specified for this model.

Technical background for designers

The IVAR 553972BS operates by dividing the primary heating circuit into four secondary circuits, each serving a specific zone. The brass CW617N material ensures durability and resistance to thermal cycling, which is essential for long-term performance. The inclusion of flow control and shut-off valves allows for individual zone adjustment and isolation for maintenance. The system’s efficiency is influenced by correct sizing of the manifold in relation to the total heat load and pipe layout. Proper insulation of the manifold and associated piping is recommended to prevent heat loss and ensure even distribution.

Service and operation

Regular maintenance includes checking for leaks, ensuring all valves are functioning correctly, and verifying the absence of blockages. Before commissioning or after system modifications, it is essential to flush the entire system according to the manufacturer’s instructions to remove debris. The use of a system treatment such as GEL.LONG LIFE 100 is recommended to prevent internal corrosion and prolong the system’s service life. No specific service intervals are provided in the brief.

Frequently asked questions

Can the IVAR 553972BS be used in a mixed heating system with radiators?
Yes, the manifold is suitable for mixed systems, provided the operating temperature and pressure limits are not exceeded. Ensure the system is flushed and treated as recommended.

Is it necessary to install a cabinet with this manifold?
No, the unit is supplied without a cabinet. A cabinet may be added for protection in exposed or high-traffic areas, but it is not required for normal operation.

What is the purpose of the automatic air vent in the manifold?
The automatic air vent removes trapped air from the system, which can reduce efficiency and cause uneven heating. It ensures continuous and stable operation without manual intervention.

Can the flow control valves be replaced individually?
Yes, the flow control valves are designed for individual replacement. Ensure the system is depressurised and isolated before removing or replacing any component.