1. Introduction
This manual provides essential information for the safe and efficient operation of your Ariston Lydos Plus 50L Electric Water Heater. Please read these instructions carefully before installation, use, or maintenance. Keep this manual for future reference.
The Ariston Lydos Plus electric water heater offers advanced features for efficient hot water supply. Its Eco Evo function intelligently learns usage patterns to provide hot water at programmed times, ensuring comfort and significant energy savings. The soft-touch display allows for precise temperature adjustment and indicates the number of available showers. The titanium enamel tank and magnesium anode contribute to long-term optimal performance and durability.
2. Safety Information
- Electrical Safety: Ensure the water heater is connected to a properly grounded electrical outlet. Do not use extension cords. Disconnect power before any maintenance or repair.
- Water Pressure: Install a pressure relief valve as required by local codes to prevent excessive pressure buildup.
- Temperature: Hot water can cause severe burns. Set the temperature to a safe level, typically between 45-55°C (113-131°F), to prevent scalding.
- Professional Installation: Installation and initial setup should be performed by a qualified technician in accordance with all local and national regulations.
- Children and Vulnerable Persons: This appliance is not intended for use by persons 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. Children should be supervised to ensure they do not play with the appliance.
3. Product Overview
The Ariston Lydos Plus 50L Electric Water Heater is designed for efficient and reliable hot water delivery in residential settings. Key features include:
- Soft Touch display for precise temperature adjustment.
- Eco Evo function for intelligent energy saving based on usage habits.
- Water Plus technology, providing up to 16% more hot water.
- Indication of available showers on the display.
- Titanium enamel tank for enhanced durability.
- Magnesium anode for corrosion protection.
Figure 3.1: Front view of the Ariston Lydos Plus 50L Electric Water Heater. The unit is white with a black control panel on the lower front.
Figure 3.2: Close-up of the Lydos Plus control panel. It features a digital display showing temperature (e.g., 65°C), shower icons, and buttons for 'SET', '+', '-', 'MODE', and 'ECO'.
4. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your water heater. It is highly recommended that installation be performed by a qualified professional.
4.1. Location Selection
- Choose a location that is protected from freezing temperatures.
- Ensure the wall structure can support the full weight of the water heater when filled with water.
- Allow adequate clearance for maintenance and service.
4.2. Plumbing Connections
- Connect the cold water inlet and hot water outlet pipes as indicated on the unit.
- Install a pressure relief valve (PRV) on the cold water inlet, ensuring it is properly discharged according to local codes.
- Flush the tank thoroughly before connecting to the hot water system to remove any debris.
4.3. Electrical Connection
- Ensure the electrical supply matches the voltage and power requirements of the water heater (220V, 1.2kW).
- Connect the unit to a dedicated, grounded circuit with appropriate overcurrent protection.
- Do not power on the unit until the tank is completely filled with water.
4.4. Initial Fill and Power-Up
- Open a hot water faucet in your home to allow air to escape from the tank.
- Open the cold water supply valve to the water heater.
- Once water flows steadily from the hot water faucet, close the faucet. The tank is now full.
- Connect the water heater to the electrical supply. The unit will power on and begin heating.
5. Operating Instructions
Your Ariston Lydos Plus water heater features an intuitive soft-touch control panel for easy operation.
5.1. Power On/Off
Press the Power button (usually integrated with MODE) to turn the unit on or off.
5.2. Temperature Adjustment
- Press the SET button to enter temperature setting mode.
- Use the + and - buttons to increase or decrease the desired water temperature.
- The display will show the set temperature. After a few seconds, it will revert to showing the current water temperature or other operational information.
5.3. Eco Evo Function
The Eco Evo function optimizes energy consumption by learning your hot water usage patterns. It heats water only when needed, reducing standby losses.
- Press the ECO button to activate or deactivate the Eco Evo mode.
- When active, the unit will monitor your usage over several days to establish a heating schedule.
- This function provides hot water when you typically need it, while saving energy during periods of low demand.
5.4. Shower Availability Indication
The display may show icons indicating the number of available showers based on the current hot water temperature and volume. This feature helps you manage your hot water consumption.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your water heater. Always disconnect power before performing any maintenance.
6.1. Anode Inspection and Replacement
The magnesium anode protects the tank from corrosion. It should be inspected annually and replaced as needed by a qualified technician. The frequency of replacement depends on water quality.
6.2. Descaling
In areas with hard water, mineral deposits (scale) can accumulate inside the tank and on the heating element, reducing efficiency. Periodic descaling by a professional is recommended.
6.3. Pressure Relief Valve (PRV) Test
Test the pressure relief valve at least once a year to ensure it is operating correctly. Follow the manufacturer's instructions for the PRV. If water does not flow freely, replace the valve.
6.4. Draining the Tank
If the water heater will be out of use for an extended period or if there is a risk of freezing, drain the tank completely. Disconnect power, close the cold water inlet, open a hot water faucet, and open the drain valve at the bottom of the tank.
7. Troubleshooting
Before contacting customer support, review the following common issues and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water or insufficient hot water |
|
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| Water too hot | Thermostat set too high | Decrease temperature setting. |
| Leaking from the unit |
|
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| Unusual noises (e.g., popping, rumbling) | Sediment buildup in the tank | Drain and flush the tank, or have it descaled by a professional. |
8. Specifications
Technical specifications for the Ariston Lydos Plus 50L Electric Water Heater (Model 3201872).
| Specification | Value |
|---|---|
| Manufacturer | Ariston Thermo Group |
| Model Number | 3201872 |
| Capacity | 50 Liters |
| Dimensions (L x W x H) | 45 x 47 x 53 cm |
| Weight (empty) | 16 kg (approx. 35.27 lbs) |
| Color | White |
| Style | LYDOS PLUS |
| Tank Material | Titanium Enamel |
| Anode Material | Magnesium |
| Power Source | Electric Cable |
| Voltage | 220 Volts |
| Power | 1.2 KW |
| Special Feature | Temperature Regulation |
| Mounting Type | Wall-mounted |
9. Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or visit the official Ariston website. In case of technical issues or if you require professional assistance, please contact Ariston customer support or an authorized service center. Do not attempt to repair the unit yourself, as this may void the warranty and pose safety risks.