1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Ariston PRO1 ECO 100 L Electric Storage Water Heater. Please read these instructions carefully before installation and use, and retain them for future reference. This appliance is designed to provide domestic hot water.
Image 1: Front view of the Ariston PRO1 ECO 100 L Electric Storage Water Heater.
2. Safety Information
Important: Installation, maintenance, and any repairs must be carried out by qualified personnel in accordance with local regulations and these instructions. Failure to comply may result in property damage, personal injury, or death.
- Electrical Safety: Ensure the appliance is correctly earthed. Disconnect power before any maintenance or service.
- Water Pressure: The water heater operates under pressure. Do not tamper with safety valves.
- Temperature: Hot water can cause scalding. Exercise caution when using hot water.
- Children and Vulnerable Persons: This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
The PRO1 water heaters have passed all safety tests necessary to meet the standards required by EC directives. The ABS safety package offers protection for both the product and its users.
3. Product Overview and Features
The Ariston PRO1 ECO 100 L is an electric storage water heater designed for efficiency and durability. Key features include:
- Eco Evo Function: This intelligent function learns user habits to optimize hot water delivery, potentially saving up to 14% on energy consumption.
- WaterPlus Technology: Patented technology that keeps incoming cold water separate from stored hot water, increasing hot water availability by up to 16%.
- TitanShield Technology: The inner tank is enamelled with titanium, providing anti-corrosion and rust resistance, extending the water heater's lifespan. This is supported by a large magnesium anode.
- Anti Legionella System: Automatically performs a complete heating cycle to 65°C to sanitize the water and eliminate potential bacteria.
- Compact Design: With a width of 35.3 cm, the PRO1 ECO is designed for versatile installation.
4. Installation
Installation of the Ariston PRO1 ECO 100 L Electric Storage Water Heater must be performed by a qualified professional. The unit comes inclusive of an unvented kit, which typically includes a 12L expansion vessel, a combination valve, and a discharge tundish. These components are crucial for safe and compliant operation.
Refer to the detailed installation instructions provided in the physical manual included with your product for specific steps, plumbing connections, and electrical wiring diagrams. Ensure adequate space for maintenance and proper ventilation.
Image 2: Ariston PRO1 ECO models and unvented kit components.
Image 3: Example installation of the Ariston PRO1 ECO water heater.
5. Operating Instructions
The Ariston PRO1 ECO features an intuitive control panel located at the bottom of the unit for easy temperature adjustment and function activation.
Image 4: Control panel of the Ariston PRO1 ECO.
- Power On/Off: Press the power button to switch the unit on or off.
- Temperature Adjustment: Use the '+' and '-' buttons to set your desired water temperature. The display indicates the current setting, typically ranging from 40°C to 65°C.
- ECO EVO Function: Activate the 'ECO' button to engage the intelligent energy-saving mode. The appliance will learn your hot water usage patterns and optimize heating cycles accordingly.
- Shower Ready Indicator: A shower icon may illuminate when sufficient hot water for a shower is available.
6. Maintenance
Regular maintenance ensures the longevity and efficient operation of your water heater. It is recommended that a qualified technician performs annual checks.
- Anti Legionella Cycle: The unit automatically performs a sanitization cycle by heating water to 65°C to prevent bacterial growth. No user intervention is typically required for this function.
- Anode Inspection: The magnesium anode, part of the TitanShield technology, should be inspected and replaced periodically by a professional to maintain corrosion protection.
- Pressure Relief Valve: Periodically check the pressure relief valve for proper operation as per the physical manual's instructions.
- Draining: If the appliance is to be out of use for an extended period or in areas subject to freezing temperatures, it should be drained by a qualified technician.
7. Troubleshooting
Before contacting customer support, review the following common issues and potential solutions:
- No Hot Water: Check if the power supply is connected and the circuit breaker is on. Ensure the temperature setting is not too low.
- Insufficient Hot Water: The ECO EVO function might be learning your habits; allow time for it to adapt. Increase the temperature setting if needed.
- Water Leaks: Immediately turn off the water supply and power to the unit. Contact a qualified technician.
- Unusual Noises: Minor noises during heating are normal. Persistent or loud noises may indicate sediment buildup or other issues, requiring professional inspection.
For issues not resolved by these steps, contact Ariston customer support or a qualified service technician.
8. Technical Specifications
| Specification | Value |
|---|---|
| Model Number | 3820021 |
| Capacity | 100 Litre |
| Product Dimensions (L x W x H) | 48 x 47 x 96.2 cm |
| Item Weight | 33.1 kg |
| Voltage | 240 Volts (AC) |
| ErP Rating | B class |
| Special Features | TitanShield, Eco Evo Function |
| Included Components | 12L expansion vessel, combination valve, discharge tundish, instruction manual, warranty certificate |
Image 5: Technical dimensions of the Ariston PRO1 ECO 100 L.
Image 6: Energy efficiency label for Ariston PRO1 ECO 100 L.
9. Warranty and Support
Your Ariston PRO1 ECO 100 L Electric Storage Water Heater is supplied with a warranty certificate. Please refer to this document for details regarding warranty coverage, terms, and conditions.
For technical assistance, spare parts, or to schedule service, please contact Ariston customer support. Ensure you have your model number (3820021) and purchase date available when contacting support.