Residential measuring set - without cabinet - heating Kv 2,25; Qn 1,5m3/h; 110mm IVAR.EQM 15

Product detailed description

Residential measuring sets are commonly installed in multi-unit buildings to measure individual heat consumption from central heating systems. These systems typically include a combination of radiators and underfloor heating circuits. Installers work with existing piping layouts to integrate the measuring set between the main supply and return lines of each apartment. The set provides accurate measurement of heat flow while enabling system balancing and isolation for maintenance.

The installation process requires careful alignment with the building's hydraulic design to ensure even distribution of heat. The set is particularly useful in systems where separate regulation of different heating zones is required. Installers must verify the correct orientation of components and ensure all connections are leak-free before commissioning.

Technical parameters

The nominal pressure rating of PN 10 indicates the maximum allowable working pressure for the set. This parameter is essential for determining compatibility with the building's overall hydraulic system. The maximum operating temperature of +90°C defines the thermal limits of the brass components, ensuring safe operation within standard heating system conditions.

Installation and connection

Installation should follow the manufacturer's guidelines to ensure proper function and longevity. The set includes external 3/4 inch threaded connections for integration into the heating circuit. Before securing all fittings, installers should verify the correct positioning of the three-way zone valve and the orientation of the heat meter. A common mistake is reversing the inlet and outlet ports of the meter, which can lead to inaccurate readings. After installation, a system flush is required to remove any debris that could damage internal components.

Compatibility and accessories

This measuring set is designed for use with central heating systems that require individual heat consumption monitoring. It is compatible with standard radiators, underfloor heating loops, and thermostatic controls. No additional components are included beyond those listed in the package. Installers should ensure that the building's existing piping layout allows for the correct placement of the set without excessive bending or compression of the connecting pipes.

Technical background for designers

The measuring set operates by measuring the flow rate and temperature difference between the supply and return lines to calculate heat consumption. The brass CB753S material offers good resistance to corrosion and thermal expansion, making it suitable for long-term operation in heating systems. The inclusion of balancing valves allows for fine-tuning of heat distribution between different zones. System efficiency depends on the correct sizing of the set relative to the expected flow rates and the overall thermal load of the apartment.

Service and operation

Periodic inspection of the set is recommended to maintain accurate measurements and prevent blockages. Installers should check for leaks around all threaded connections and ensure that the three-way zone valve operates smoothly. The heat meter should be inspected for signs of wear or damage that could affect its accuracy. No specific service intervals are provided in the documentation, but regular visual inspections are advised during routine maintenance of the heating system.

Frequently asked questions

Can the measuring set be used in systems with mixed radiators and underfloor heating?
Yes, the set is suitable for such applications. However, a thorough system flush is required before commissioning to prevent clogging of internal components.

Is the heat meter compatible with digital building management systems?
The IVAR.WFM (MEGATRON 5) heat meter is designed for local measurement and does not include direct digital communication interfaces in the provided configuration.

Can the set be installed in reverse flow direction?
No, the heat meter must be installed in the correct flow direction as indicated by the manufacturer's markings. Reversal will result in incorrect readings.

Are the balancing valves adjustable during operation?
Yes, the balancing valves allow for fine-tuning of flow rates during system commissioning and can be adjusted as needed during operation to maintain balance between heating zones.