ELIZ EL 52 Instant Water Heater

Product detailed description

Electric instantaneous water heaters are commonly used in residential and small-scale installations where immediate access to hot water is essential. These units are typically installed above sinks or kitchen basins and are ideal for environments such as homes, cottages, or social buildings lacking a central hot water distribution system. The ELIZ EL 52 is designed for low-pressure systems and requires specific installation conditions to ensure optimal performance. Installers should consider the hydraulic requirements and electrical capacity of the site before fitting the unit.

These systems operate by heating water as it flows through the device, eliminating thermal losses associated with storage tanks. The ELIZ EL 52 is suited for applications where a continuous flow of hot water is needed without the need for large storage solutions. It is particularly useful in locations with limited space or where retrofitting a traditional water heater is impractical. The heater must be connected to a dedicated low-pressure tap, and the installation must comply with local plumbing and electrical regulations.

Technical parameters

The power settings (1500 / 3500 / 5000 W) allow the unit to be adjusted according to the required flow rate and temperature rise. The 230 V supply voltage and 25 A fuse rating indicate the need for a dedicated electrical circuit. The IP24 rating ensures protection against solid objects and water splashes, making it suitable for use near water sources. The 1/2 inch water connection and minimum activation pressure of 2 bar are critical for determining compatibility with existing plumbing systems.

Installation and connection

Installation of the ELIZ EL 52 begins with verifying the electrical supply meets the 230 V and 25 A requirements. The unit must be mounted securely above the sink or basin, ensuring proper clearance for ventilation and maintenance. The 1/2 inch water inlet must be connected to a dedicated low-pressure supply line, and the outlet to the low-pressure tap provided with the unit. The minimum activation pressure of 2 bar must be confirmed to ensure reliable operation. Installers should also verify that the electrical circuit includes a double-insulated switch with overload protection.

Common installation errors include using non-compliant taps or failing to secure the unit properly, which can lead to leaks or electrical hazards. The heater must not be operated with any alternative taps, as the included low-pressure model is specifically designed for compatibility. After installation, the system should be tested for water flow and electrical continuity to confirm correct operation. Any air pockets in the system should be purged before commissioning.

Compatibility and accessories

The ELIZ EL 52 is compatible with standard low-pressure plumbing systems and requires a 230 V electrical supply with a 25 A fuse. It must be used with the supplied low-pressure lever tap, which is essential for maintaining system integrity and safety. No additional accessories are required for basic operation, as the unit is delivered complete with the necessary components. Installers should ensure that the electrical and plumbing infrastructure supports the unit’s specifications before fitting.

Technical background for designers

The ELIZ EL 52 operates by passing cold water through a heating chamber containing two electric heating elements. As water flows through the unit, the elements raise the temperature instantly, without the need for a storage tank. The unit is constructed using materials that resist limescale buildup and are designed to handle fluctuating water flow rates. The IP24 rating ensures that the electrical components are protected from dust and water ingress, while the built-in thermal cut-out prevents overheating in case of reduced water flow or blockage.

The design integrates multiple safety features, including a thermal fuse and a pressure relief mechanism. The unit is intended for integration into low-pressure systems, where water flow is controlled manually via the supplied tap. The dual heating elements allow for flexible power adjustment, enabling the system to adapt to varying water flow conditions. The overall design prioritizes energy efficiency and long-term reliability, with minimal maintenance requirements.

Service and operation

Regular inspection of the electrical connections and water inlet/outlet is recommended to ensure continued safe operation. The unit does not require scheduled maintenance beyond routine checks for leaks or electrical faults. If the thermal cut-out activates due to overheating, the system must be allowed to cool before attempting to reset it. In the event of persistent issues, the unit should be disconnected and inspected by a qualified technician. The warranty covers defects in materials and workmanship for two years from the date of purchase.

Frequently asked questions

Can the ELIZ EL 52 be used with a standard pressure tap?
No, the unit must be used with the supplied low-pressure lever tap to ensure correct operation and safety.

Is the ELIZ EL 52 suitable for installation in a bathroom?
Yes, provided the installation complies with local electrical and plumbing regulations and the unit is mounted in a dry location.

How is the power setting adjusted on the ELIZ EL 52?
The power setting is adjusted using the double-insulated switch located on the unit, which allows selection between 1500, 3500, and 5000 W modes.

What happens if the water pressure drops below 2 bar?
The heater will not activate until the pressure returns to the minimum required level, preventing damage to the heating elements.

Documents for download

• Technical documentation (PDF)