ELÍZ EURO 120 T | ELZ_3314

Product detailed description

Combined water heaters like the ELIZ EURO 120 T are commonly used in residential and light commercial applications where domestic hot water and space heating systems need to share a single unit. Installers often encounter these units in systems with central heating boilers or in setups requiring secondary heating sources. The vertical orientation allows for efficient space utilisation, while the wall mounting reduces floor space requirements. Proper sizing and integration with the existing heating infrastructure are critical to ensure both thermal efficiency and user comfort.

This model is designed for installation in environments where wall mounting is feasible and where access to a 230 V power supply is available. The heater includes a heat exchanger for connection to an external heat source such as a boiler. This makes it suitable for hybrid systems combining primary heating and electric backup. The heater’s 120 L capacity supports multiple draw points, making it ideal for small to medium households or commercial premises with similar demand profiles.

Technical parameters

The 2000 W electric heating element allows for a heating time of 3.8 hours from 12 to 65°C. The 120 L tank is protected by a zirconium enamel coating and two magnesium anodes, which extend its service life. The IP 24 rating ensures protection against splashing water, while the maximum working pressure of 6 bar defines the hydraulic limits of the system. The 33 mm thick polyurethane insulation ensures low thermal losses, reducing energy consumption during standby periods.

Installation and connection

Mounting the ELIZ EURO 120 T requires a sturdy wall capable of supporting 43 kg. The heater is equipped with a wall bracket, simplifying the installation process. The water inlet and outlet connections are 1/2 inch threaded, while the heating circuit connections are 3/4 inch threaded. Ensure that all pipe connections are tightened to the manufacturer’s torque specifications to avoid leaks. The heat exchanger must be connected to an external heat source via the left-side ports, and the electrical supply must be wired according to local regulations. A safety fuse and thermostat are integrated to prevent overheating. A common mistake is improper alignment of the wall bracket, which can lead to stress on the tank or uneven support. Always verify the electrical circuit is isolated before connecting the heater.

Compatibility and accessories

The ELIZ EURO 120 T is compatible with central heating boilers and other external heat sources that provide hot water at temperatures suitable for the heat exchanger. It is recommended to install a pressure-reducing valve if the incoming water pressure exceeds 6 bar. The unit includes a magnetic trap and a non-return valve to prevent backflow and protect the tank. No additional accessories are required for basic installation, though a dedicated electrical circuit is recommended for stable operation.

Technical background for designers

The ELIZ EURO 120 T operates using a combination of electric heating and heat exchange from an external source. The heat exchanger is constructed from steel coated with zirconium enamel to resist corrosion and scaling. The tank itself is also made of steel with the same protective coating. The polyurethane insulation minimises heat loss and contributes to the unit’s energy efficiency. The design allows for parallel operation between the electric heating element and the heat exchanger. The thermostat controls the electric element and can be set between 7 and 75°C. The ECO mode reduces the maximum temperature to 55°C for lower energy consumption. The unit’s performance is influenced by the quality of the external heat source, the water hardness level, and the frequency of hot water usage.

Service and operation

Regular maintenance includes checking the anodes for signs of depletion and replacing them when necessary. The tank should be drained periodically to remove sediment buildup. The electrical connections should be inspected for signs of wear or overheating. The thermostat should be tested to ensure accurate temperature control. There are no specified service intervals in the brief, but annual checks are generally recommended for optimal performance and safety.

Frequently asked questions

Can the ELIZ EURO 120 T be connected to a condensing boiler?
Yes, provided the boiler supplies hot water within the operating range of the heat exchanger and the pressure does not exceed 6 bar.

Is the electric heating element sufficient for rapid recovery after high usage?
Yes, the 2000 W element heats 120 L of water from 12 to 65°C in 3.8 hours, which is suitable for most household demands.

Can the heater operate in cold climates without risk of freezing?
Yes, the thermostat has a minimum setting to prevent the water from freezing, and the unit includes a frost protection feature.

How is the ECO mode activated and what does it do?
The ECO mode is selected via the thermostat and limits the maximum temperature to 55°C, reducing energy consumption and thermal losses.

Documents for download

• Technical documentation (PDF)