ELÍZ EURO 120 THV

Product detailed description

This water heater is designed for installation in residential or commercial buildings with central heating systems requiring hot water storage. It is typically used in conjunction with wall-mounted boilers where space efficiency and system integration are important. The unit is installed on the floor near the boiler, allowing for direct piping connections. It supports both single and multiple draw-off points and can be integrated with circulation loops for consistent hot water delivery to remote fixtures. Installers should consider the tank’s dimensions and weight when planning the layout and support structure.

Its top-mounted connections simplify the installation of pipework from the boiler and circulation system. The orientation of the connections reduces the need for additional fittings or bends, which can improve flow efficiency and reduce pressure loss. The compact footprint makes it suitable for mechanical rooms or utility areas with limited space. The unit requires proper ventilation and clearance for maintenance access to the cleaning flange and thermostat controls.

Technical parameters

type	EURO 120 THV
water connection	3/4 inch
maximum tank pressure	6 bar
hose connection	3/4 inch
hose surface area S1	1.32 m²
hose power S1	39 kW
circulation	yes
freestanding	yes
weight	49 kg
product dimensions	W / H / D: 462 x 1190 x 485 mm
tank warranty	5 years
product warranty	2 years
EAN	3800035730791
Code	ELZ_3412
Brand	ELIZ

The maximum working pressure of 6 bar is critical for ensuring compatibility with the boiler and circulation pump. The heat exchanger surface area of 1.32 m² and thermal output of 39 kW determine the speed of water heating and the system’s ability to recover after high demand. The water inlet and hose connection sizes (3/4 inch) specify the required pipe and fitting dimensions for secure and leak-free connections. The unit’s weight and dimensions are essential for planning structural support and ensuring safe handling during installation.

Installation and connection

Begin by securing the heater to the floor using appropriate brackets or mounting points to prevent movement during operation. Connect the boiler to the water heater via the top-mounted inlet and outlet ports, ensuring that all joints are tightened to the manufacturer’s specifications. For circulation systems, connect the circulation loop to the dedicated port, using a circulation pump rated for the system’s flow requirements. Verify that all connections are leak-free by pressurising the system and inspecting for signs of leakage. Install a pressure-reducing valve if the incoming water pressure exceeds 6 bar to prevent over-pressurisation. Ensure the expansion vessel is correctly sized and connected to accommodate thermal expansion. The thermostat must be set according to the system’s operating instructions to maintain safe temperatures and prevent overheating. Avoid kinking or bending the supply and return pipes, as this can restrict flow and reduce efficiency. Always follow local plumbing codes and manufacturer guidelines for installation and safety.

Compatibility and accessories

This water heater is compatible with wall-mounted boilers designed for indirect heating systems. It is intended for use with circulation pumps and expansion vessels sized according to the system’s flow rate and pressure requirements. Accessories such as pressure gauges, temperature sensors, and isolation valves may be required for complete system functionality. Ensure that all components are compatible with the 3/4 inch threaded connections on the heater. Additional insulation may be necessary in unheated spaces to maintain efficiency and prevent condensation on the tank surface.

Technical background for designers

The ELÍZ EURO 120 THV operates by transferring heat from the boiler to the stored water via a copper or steel heat exchanger. The heat exchanger is enclosed within the tank and transfers thermal energy through conduction. The zirconium-glazed steel tank and heat exchanger resist corrosion and prolong the system’s lifespan. The 33 mm polyurethane insulation minimises heat loss and reduces energy consumption. The anode rod provides sacrificial protection against internal corrosion, further extending the tank’s service life. The thermostat allows for manual temperature control, while the communication port enables integration with smart control systems for automated regulation.

Service and operation

Regular maintenance includes inspecting the anode rod for signs of depletion and replacing it if necessary. The cleaning flange should be accessed periodically to remove sediment and scale buildup from the tank interior. Check the pressure relief valve for proper operation and ensure that it discharges water freely during testing. Inspect all connections for tightness and signs of wear or corrosion. The thermostat should be tested annually to confirm accurate temperature regulation. No specific service intervals are provided in the brief; refer to the manufacturer’s instructions for recommended maintenance schedules.

Frequently asked questions

Can the ELÍZ EURO 120 THV be connected to a circulation system?
Yes, the unit includes a dedicated circulation port for connecting a circulation pump and loop. Ensure the pump is sized to match the system’s flow requirements and that all connections are properly sealed.

What is the purpose of the communication port on the heater?
The communication port allows for integration with control systems or smart thermostats. It can be used to monitor tank temperature or enable remote adjustments to the thermostat settings.

Is it possible to replace the anode rod independently?
Yes, the anode rod can be replaced without removing the entire tank. Access the cleaning flange and follow the manufacturer’s instructions for removal and installation of a new anode.

Can the unit be installed in a basement or unheated space?
Yes, but additional insulation may be required to prevent condensation and maintain efficiency in colder environments. Ensure the installation location allows for proper ventilation and access for maintenance.

Documents for download

• User manual (PDF)