Assembly distributor IVAR.CS 553 VP, 8-way

Product detailed description

This 8-way floor heating distributor is commonly used in residential and commercial buildings with hydronic heating systems. It is particularly suited for installations where precise flow control and even heat distribution are required. The system is often integrated into underfloor heating layouts, especially in combination with radiators or other heating elements. Installers working on multi-zone systems will find this distributor ideal for managing individual loop temperatures and flow rates.

The IVAR.CS 553 VP is designed for use in systems operating at up to 90°C and with a nominal pressure of PN 10. It is typically used in conjunction with a boiler or heat pump and is compatible with standard floor heating pipe circuits. The distributor ensures that each circuit receives the correct amount of hot water, improving system efficiency and occupant comfort.

Technical parameters

Nominal pressure	PN 10
Weight	3 kg
Code	553976
Brand	IVAR

The PN 10 rating indicates that the distributor is suitable for systems operating at a nominal pressure of 10 bar. The maximum operating temperature of 90°C means it is appropriate for use with standard central heating systems. These parameters are essential for determining compatibility with the boiler, pump, and piping in the system.

Installation and connection

The distributor is connected via a 1 inch x EK thread, which must be securely tightened to prevent leaks. The installation procedure involves mounting the distributor and collector on the wall using the provided mounting brackets. Each circuit is connected to the distributor and collector using the included ball valves and adapters. It is important to ensure that the flow control meters are correctly set during installation to allow for accurate flow regulation. Common installation mistakes include incorrect orientation of the flow meters and failure to align the collector with the distributor, which can lead to imbalanced flow distribution.

Compatibility and accessories

This distributor is compatible with standard floor heating systems using copper or plastic piping. It is typically used with floor heating manifolds and requires a separate circulation pump for full system operation. The set includes two ball valves with locknuts, two pass-through adapters with automatic air vents, a drain valve, and a thermometer. Additional components such as a circulation pump and insulation materials may need to be ordered separately for a complete system setup.

Technical background for designers

The distributor operates by dividing the incoming hot water into multiple circuits, each of which is controlled by a flow control meter. The brass CW617N material ensures durability and resistance to corrosion, making it suitable for long-term use in heating systems. The system is designed to integrate with a central heating boiler or heat pump, and the flow control meters allow for precise regulation of each circuit. The efficiency of the system depends on proper sizing of the distributor and accurate setting of the flow control meters during commissioning.

Service and operation

Regular maintenance includes checking for leaks, ensuring that the flow control meters are correctly set, and verifying that the air vents are functioning properly. The system should be flushed before each heating season, especially when used in combination with radiators. The manufacturer recommends using the GEL.LONG LIFE 100 preparation to protect the system from contamination. No specific service intervals are provided, but it is advisable to inspect the system annually to ensure optimal performance.

Frequently asked questions

Can the IVAR.CS 553 VP be used with a heat pump system?
Yes, the distributor is compatible with heat pump systems as long as the operating temperature and pressure are within the specified limits of 90°C and PN 10.

Is it necessary to use a circulation pump with this distributor?
Yes, a separate circulation pump is required for the system to operate correctly, as the distributor does not include a built-in pump.

Can the flow control meters be adjusted after installation?
Yes, the flow control meters can be adjusted to regulate the flow rate in each circuit, allowing for fine-tuning of the system after installation.

What should be done if air is trapped in the system?
The automatic air vents included in the set will release trapped air during operation. If air remains, the system should be manually bled using the drain valve provided.