Residential measuring set - without cabinet - heating Kv 2,75; Qn 2,5m3/h; 130mm IVAR.EQM 25

Product detailed description

Residential measuring sets are commonly used in apartment blocks and multi-unit buildings to measure individual heat consumption from central district heating networks. This type of installation requires careful system balancing and accurate flow measurement to ensure fair billing and efficient energy use. Installers typically work with existing pipe layouts and integrate the measuring set between the main supply and return lines of the unit’s heating circuit. The system must be compatible with standard central heating configurations and allow for regular inspection of flow rates and temperature differences.

The installation involves connecting the set directly into the heating loop, ensuring all components are properly aligned and sealed. The set is designed for use with standard pipe sizes and includes isolation valves for maintenance access. Correct orientation of the heat meter and sensor well is essential for reliable readings. Before commissioning, the system should be flushed according to the manufacturer's instructions to remove any debris that could affect performance.

Technical parameters

Material	Brass CB753S
Nominal pressure	PN 10
Code	KIT506381
Brand	IVAR

The PN 10 pressure rating ensures suitability for low-pressure heating systems typically found in residential applications. The maximum operating temperature of +90°C aligns with standard hot water heating circuits. These parameters help determine correct sizing and compatibility with existing piping and fittings.Installation and connection Correct installation begins with verifying that the pipeline layout allows sufficient space for the measuring set and its components. All connections are made using external 3/4 inch threads, which must be fully tightened and sealed. The heat meter must be installed in the correct flow direction as indicated by the manufacturer. Balancing valves should be adjusted according to the system’s hydraulic requirements. Common installation errors include incorrect orientation of the heat meter, poor sealing at threaded connections and failure to flush the system before starting operation. Always check that all valves operate freely and that the sensor well is positioned correctly within the flow path.Compatibility and accessories This measuring set is designed for use with standard central heating systems using water as the heat transfer medium. It is compatible with IVAR.EQUIMETER heat meters and standard brass valves. Additional components such as mounting brackets or expansion joints may be required depending on the specific installation conditions. No alternative or related products are specified for this model.

Technical background for designers

The measuring set operates by measuring the flow rate of heated water and the temperature difference between the supply and return lines. The heat meter calculates the total energy delivered based on these values. The set is constructed primarily from brass CB753S, a material chosen for its durability and resistance to corrosion in wet environments. The thermal insulation included helps reduce heat loss and ensures stable operating conditions. System efficiency can be affected by improper balancing, air pockets in the system and incorrect positioning of the temperature sensor. Long-term reliability depends on maintaining clean water quality and following recommended flushing procedures before commissioning.

Service and operation

Regular maintenance includes visual inspections of all valves and connections for leaks or signs of wear. The heat meter should be checked periodically for correct operation and calibration. No specific service intervals are provided in the documentation. It is important to ensure that the system remains free from debris and sludge, particularly after initial commissioning. If the system shows irregular readings or operational issues, the entire installation should be inspected for blockages or misalignment of components.

Frequently asked questions

Can this measuring set be used with underfloor heating and radiators in the same system?
Yes, the set is suitable for mixed heating systems. However, special attention should be given to system balancing and thorough flushing before operation.

Is it necessary to install additional filters beyond those included?
No, the set already includes a built-in filter. Additional filtration is not required unless the system water quality is particularly poor.

What is the purpose of the thermal insulation included in the package?
The insulation helps maintain stable operating temperatures and reduces heat loss in the measuring set components.

Are there any special precautions when connecting the temperature sensor?
Yes, the sensor well must be fully submerged in the flow stream and positioned according to the manufacturer’s instructions to ensure accurate measurements.