Ariston 10-Liter Under-Sink Electric Water Heater User Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Ariston 10-liter under-sink electric water heater. Please read these instructions carefully before installation and use, and retain them for future reference.

2. Safety Information

Warning: Failure to follow these safety instructions could result in electric shock, fire, property damage, or personal injury.

• Ensure the electrical supply matches the specifications on the product label.
• Installation must be performed by a qualified professional in accordance with local regulations.
• Do not operate the water heater if it is damaged or malfunctioning.
• Always disconnect power before performing any maintenance or repairs.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

3. Product Overview

The Ariston 10-liter under-sink electric water heater is designed to provide hot water efficiently for single-point-of-use applications, such as a kitchen sink. Its compact design allows for convenient installation directly under the sink.

Image 1: Front view of the Ariston 10-liter under-sink electric water heater, showing the temperature control knob and heating indicator light.

Main Components:

• Temperature Control Knob: Used to adjust the desired water temperature.
• Heating Indicator Light: Illuminates when the water heater is actively heating water.
• Water Inlet/Outlet Connections: Located at the top for under-sink installation.

4. Setup and Installation

Before beginning installation, ensure you have all necessary tools and components. Screws and a power plug are not included and must be purchased separately.

4.1. Pre-Installation Checks

• Verify that the installation location is suitable for an under-sink unit, with adequate space and ventilation.
• Ensure the wall or cabinet structure can support the weight of the water heater when full (approximately 17 kg).
• Confirm that water and electrical connections are accessible and meet local codes.

4.2. Mounting the Water Heater

1. Mark the drilling points on the wall using the provided wall mounting bracket as a template.
2. Drill holes and insert appropriate wall plugs (not supplied).
3. Securely fasten the mounting bracket to the wall.
4. Hang the water heater onto the bracket, ensuring it is level and stable.

Image 2: Technical diagram showing the dimensions of the Ariston water heater for installation planning.

4.3. Water Connections

• Connect the cold water inlet (blue ring) to the main cold water supply using appropriate plumbing fittings.
• Connect the hot water outlet (red ring) to the hot water tap.
• Install a safety relief valve on the cold water inlet, as required by local regulations.
• Ensure all connections are watertight.

4.4. Electrical Connection

• The water heater requires a dedicated electrical circuit.
• Connect the electrical wiring to a suitable power plug (not supplied) and a grounded outlet.
• Ensure the electrical connection is made by a qualified electrician and complies with all local electrical codes.

4.5. Filling the Water Heater

1. Before connecting to power, open a hot water tap in your sink.
2. Open the cold water supply valve to the water heater.
3. Allow water to flow from the hot water tap until all air is purged from the tank and a steady stream of water emerges.
4. Close the hot water tap. The water heater is now full.

5. Operating Instructions

5.1. Power On

Once the water heater is filled with water and all connections are secure, plug the unit into the electrical outlet. The heating indicator light will illuminate if the water temperature is below the set point.

5.2. Temperature Adjustment

Rotate the temperature control knob on the front of the unit to set the desired water temperature. Turning the knob towards 'MAX' will increase the temperature. The water heater will automatically heat the water to the set temperature and maintain it.

5.3. Heating Cycle

The heating indicator light will remain on while the water heater is actively heating. Once the set temperature is reached, the light will turn off, indicating that the heating cycle is complete. The light will cycle on and off as the unit maintains the water temperature.

6. Maintenance

Regular maintenance ensures the longevity and efficient operation of your water heater.

6.1. Regular Checks

• Periodically inspect the water heater for any signs of leaks, corrosion, or damage.
• Check the safety relief valve for proper operation at least once a year by manually opening it briefly to ensure water flows out.

6.2. Descaling

Over time, mineral deposits (limescale) can accumulate inside the tank and on the heating element, reducing efficiency. Descaling should be performed by a qualified technician every 1-2 years, depending on water hardness.

6.3. Cleaning

Clean the exterior of the water heater with a soft, damp cloth. Do not use abrasive cleaners or solvents.

7. Troubleshooting

Refer to this section for common issues and their potential solutions.

Important: For issues not listed or if solutions do not resolve the problem, contact a qualified service technician. Do not attempt complex repairs yourself.

8. Technical Specifications

9. Warranty and Support

For warranty information, please refer to the documentation provided with your purchase or visit the official Ariston website. For technical support or service, please contact Ariston customer service or an authorized service center in your region.

Keep your purchase receipt as proof of purchase for warranty claims.