Residential measuring set - without cabinet - heating Kv 2,25; without meter and water meter IVAR.EQM 12B

Product detailed description

This modular measuring set is typically installed in residential buildings with central heating distribution. It enables accurate measurement of heat and water consumption in individual units connected to district heating networks. The assembly is commonly used in multi-apartment buildings where thermal energy billing requires precise measurement of both heating and domestic hot water consumption. Installers working on these systems will find the pre-assembled configuration simplifies integration with existing piping while maintaining compliance with thermal regulation requirements.

The system is particularly suited for installations where separate measurement of heating and hot water circuits is required. The modular design allows for straightforward connection to standard distribution manifolds while maintaining hydraulic separation between measured circuits. The inclusion of balancing valves supports system optimisation, ensuring even heat distribution across multiple zones within the building.

Technical parameters

Material	Brass CB753S
Nominal pressure	PN 10
Code	506370
Brand	IVAR

The PN 10 rating indicates the maximum allowable working pressure of 10 bar at reference temperature conditions. This parameter is essential for proper sizing relative to the system's hydraulic requirements. The brass CB753S construction provides good corrosion resistance for long-term performance in potable water and heating applications.Installation and connection Prior to installation, verify that all components match the system's flow requirements and pressure ratings. Connect using external 3/4 inch threads to standard piping. Ensure all ball valves are fully open during initial commissioning to prevent pressure imbalances. Check that the thermal sensor well is properly aligned with the pipe axis for accurate temperature readings. A common installation error involves incorrect orientation of the heat meter, which can lead to measurement inaccuracies.

Compatibility and accessories

This measuring set requires connection to a central heat distribution manifold. Additional components such as a housing cabinet and water meter need to be ordered separately. The system is compatible with standard district heating configurations using glycol-based or water-based heat transfer media. Ensure that any supplementary control systems are compatible with the thermal sensor output specifications.

Technical background for designers

The system operates by measuring temperature differentials between supply and return lines to calculate heat transfer. The brass construction provides good thermal conductivity while resisting dezincification in water systems. The modular assembly allows for easy integration with existing building management systems through the heat meter's communication interface. System efficiency depends on correct balancing valve settings and regular inspection of the filter element to maintain flow characteristics.

Service and operation

Periodic inspection of the filter and verification of valve positions is recommended to maintain measurement accuracy. Check for any blockages in the thermal sensor well that could affect temperature readings. Ensure all ball valves remain fully operational to allow for system isolation during maintenance. The manufacturer recommends system flushing according to their technical guidelines to prevent particulate buildup that could affect component longevity.

Frequently asked questions

Can this measuring set be used with underfloor heating systems?
Yes, provided the system is properly flushed according to the manufacturer's guidelines before commissioning. Special attention should be given to balancing valve settings in hybrid systems combining radiators and underfloor heating.

Is a separate cabinet required for installation?
A housing cabinet is not included with this unit and must be purchased separately if required for protection or space constraints.

What type of filter is included in the assembly?
The unit includes a standard filter that should be inspected periodically to ensure unimpeded flow through the measuring components.

Can the thermal sensor well be relocated after installation?
Relocation is not recommended after initial installation as proper alignment with the pipe axis is critical for accurate temperature measurement.