Electric water heater Napoli, 10L, upper connection

Product detailed description

Electric water heaters are essential components in domestic and commercial hot water systems. The Hydroland Napoli OW.NAP.G10 is designed for vertical installation in compact spaces, making it suitable for kitchens, bathrooms and utility rooms. It provides on-demand hot water for single-point applications such as sinks, basins and small appliances. The upper connection design simplifies installation in tight spaces where floor access is limited. The 10L capacity is ideal for applications requiring moderate hot water output without the need for large storage tanks.

When integrating this unit into a system, installers must consider the available electrical supply, water pressure and thermal requirements of the connected fixtures. The OW.NAP.G10 is typically used in residential and small commercial settings where space and energy efficiency are priorities. The IPX4 rating ensures it can be installed in areas with limited exposure to water spray, such as near sinks or in utility rooms.

Technical parameters

Installation and connection

Install the OW.NAP.G10 in a vertical position with the upper connection facing upwards. Connect the water supply using standard 1/2 inch threaded fittings. Ensure the unit is fully filled with water before energising to prevent dry operation. Verify that the electrical supply matches the 230V-50Hz rating and that the circuit is protected by an appropriate fuse or circuit breaker. Check the pressure relief valve (0.6MPa) functions correctly and that the magnesium anode is securely fitted. Common installation errors include incorrect orientation, failure to check the pressure relief valve and using non-compliant electrical wiring.

Compatibility and accessories

The OW.NAP.G10 is compatible with standard domestic plumbing systems and electrical circuits. It requires a dedicated electrical circuit with a 230V-50Hz supply and a suitable fuse. Additional components such as pressure regulators, flow restrictors and thermal insulation may be required depending on the system configuration. Installers should ensure that the installation complies with local electrical and plumbing codes. No specific accessories are included with the unit, so additional components must be sourced separately.

Technical background for designers

The OW.NAP.G10 operates by heating water stored in a 10L stainless steel tank using a 2000W heating element. The internal tank is made of cold-rolled steel with a vitreous enamel coating, providing resistance to corrosion and scaling. The magnesium anode helps neutralise acidic water and reduce internal corrosion. The unit is insulated with 20mm polyurethane to reduce heat loss. The thermostat, adjustable between 25°C and 75°C, controls the heating element to maintain the desired water temperature. The IPX4 rating allows installation in areas with limited water exposure, but it is not suitable for fully submerged or high-pressure environments. The unit integrates into standard hot water systems and can be used as a supplementary or primary heating source.

Service and operation

Regular maintenance is essential to ensure the unit operates efficiently and safely. Replace the magnesium anode periodically to maintain internal corrosion protection. Check the pressure relief valve weekly to ensure it functions correctly. If the unit is not in use for an extended period, disconnect the power supply to prevent dry operation and electrical faults. In the event of a leak, immediately disconnect the power and inspect the unit for damage. The thermostat should be set to a safe temperature to prevent scalding, and the unit should be inspected regularly for signs of wear or malfunction.

Frequently asked questions

Can the OW.NAP.G10 be installed in a horizontal position?
No, the unit is designed for vertical installation only. Horizontal installation may affect water circulation and heating efficiency.

What is the maximum water temperature the unit can reach?
The thermostat can be set up to 75°C. The thermal cut-out activates at 93°C ± 3°C to prevent overheating.

Is the unit suitable for use with solar water heating systems?
The OW.NAP.G10 is not designed for integration with solar water heating systems. It is intended for use with standard electrical supplies and domestic water systems.

How often should the magnesium anode be replaced?
There is no specific service interval provided in the technical data. However, it is recommended to replace the anode periodically to maintain internal corrosion protection.

Documents for download

• Electric water heaters (PDF)