ELÍZ EURO 200 D2

Product detailed description

The ELÍZ EURO 200 D2 is commonly used in residential and commercial buildings where a reliable thermal storage heater is required to support heat pump systems or other renewable energy sources. It is often found in systems where domestic hot water needs are combined with space heating demands. Installers working with central heating systems, solar thermal integration, or low-carbon heating solutions will find this unit suitable for its dual-source capability. The design allows for seamless integration with existing infrastructure and supports energy-efficient operation in modern heating systems.

Thermal storage heaters like the ELÍZ EURO 200 D2 are particularly useful in installations where intermittent heat sources such as heat pumps are used. They provide a buffer for thermal energy, ensuring a stable supply of hot water even when the primary heat source is inactive. The inclusion of two heat exchangers allows for flexibility in system design, enabling the use of multiple heat inputs simultaneously or sequentially depending on availability and demand.

Technical parameters

hose connection	1 inch
hose surface area S2	1.63 m²
hose power S2	42 kW
Weight	98 kg
Code	ELZ_3355
Brand	ELIZ

The hose connection size of 1 inch and the surface area of 1.63 m² for the S2 heat exchanger are critical for determining the flow rate and heat transfer efficiency. These parameters influence the system’s ability to respond to load changes and maintain consistent water temperatures. The 42 kW power rating of the S2 heat exchanger indicates the maximum thermal input capacity, which is essential for sizing the system to meet peak demand conditions.

Installation and connection

When installing the ELÍZ EURO 200 D2, ensure that the 1-inch hose connections are compatible with the existing piping system. Use appropriate fittings and sealing methods to prevent leaks. The unit should be positioned in a location that allows for easy access to both heat exchangers and the electric heating element. Verify that the tank is level and that all connections are secure before commissioning. Common installation mistakes include incorrect alignment of the heat exchangers, failure to check the integrity of the internal tank coating, and improper insulation of the tank body. Always follow the manufacturer’s guidelines for mounting and electrical connections. The presence of a circulation port in the middle of the tank requires careful routing of the circulation loop to avoid air pockets and ensure efficient heat distribution.

Compatibility and accessories

This thermal storage heater is compatible with a range of heat sources, including heat pumps, local central heating boilers, and solar thermal systems. To connect these sources, ensure that the secondary circuits are properly sized and insulated. Additional components such as expansion vessels, pressure relief valves, and temperature sensors may be required to complete the system configuration. For optimal performance, installers should consider using high-quality insulation materials around the tank and piping to minimize heat loss. A dedicated control system with communication capabilities can be integrated to manage the operation of the heater based on demand and energy availability.

Technical background for designers

The ELÍZ EURO 200 D2 operates by storing thermal energy in a large insulated tank. The tank is constructed from high-quality steel and coated with a zirconium-based enamel to resist corrosion. The two heat exchangers allow for simultaneous or sequential heating from different sources, making the unit adaptable to various system configurations. The electric heating element is located at the bottom of the tank and provides a backup heating option when external sources are unavailable. The thermostat controls the temperature of the stored water, ensuring it remains within the desired range. The unit’s insulation, made from high-density polyurethane with a thickness of 85 mm, reduces heat loss and contributes to energy efficiency. Designers should consider the thermal mass of the tank when calculating system response times and energy storage requirements. The integration of two heat exchangers increases the system’s flexibility but also requires careful balancing to ensure even heat distribution and avoid thermal stratification.

Service and operation

Regular maintenance of the ELÍZ EURO 200 D2 includes checking the condition of the anodes, verifying the integrity of the internal tank coating, and inspecting the electrical connections for signs of wear or damage. The unit features a six-stage safety system, including a thermal fuse and a waterproof switch with indicator light, to ensure safe operation under varying load conditions. During routine service, ensure that the anodes are functioning correctly and replace them if necessary. Check the pressure relief valve and the safety vent for blockages or corrosion. The thermostat should be calibrated periodically to maintain accurate temperature control. No specific service intervals are provided in the brief, so refer to the manufacturer’s technical documentation for detailed maintenance schedules.

Frequently asked questions

Can the ELÍZ EURO 200 D2 be connected to a heat pump and a boiler at the same time?
Yes, the unit is designed to accept two separate heat sources via the two heat exchangers. This allows for simultaneous or sequential operation depending on the system configuration and energy availability.

Is it possible to control the electric heating element independently of the heat exchangers?
Yes, the electric heating element can be controlled separately using the thermostat on the control panel. This allows for manual or automatic operation based on demand and system settings.

How does the unit protect against corrosion inside the tank?
The tank and heat exchangers are protected with a zirconium-based enamel coating and feature dual anode protection using magnesium alloy rods. This combination significantly extends the service life of the unit by reducing the effects of corrosion.

Can the ELÍZ EURO 200 D2 be used with a solar thermal system?
Yes, the unit is compatible with solar thermal systems. The second heat exchanger can be connected to a solar circuit, allowing the system to utilize solar energy for water heating when available.

Documents for download

• Technical specification sheet (PDF)