1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Vaillant VED E 18/8 Electronic Instantaneous Water Heater. Please read these instructions carefully before installation and use, and keep them for future reference.
The Vaillant electronicVED E 18/8 is designed to provide precise hot water comfort for single or multiple draw-off points, with a flow rate of 8 liters per minute. It is suitable for connection points with an 18 kW power supply.
Figure 1: Front view of the Vaillant VED E 18/8 Electronic Instantaneous Water Heater.
2. Safety Instructions
Important: Installation of non-plug-in appliances must be carried out by a qualified professional or a registered specialist company. This ensures compliance with local regulations and safety standards. Failure to follow the warning and installation instructions in the provided manual can damage the product and void the warranty.
- Always disconnect power before performing any installation or maintenance.
- Ensure proper ventilation of the appliance before initial use.
- The appliance must be mounted vertically and within the appropriate protection zone according to DIN 57100/VDE 100 (> 60 cm distance from shower or bathtub area, socket, or sink).
- Adjustable anti-scald protection is integrated for user safety.
3. Installation
3.1 Unpacking and Inspection
Carefully unpack the water heater and inspect it for any damage. The package includes:
- Electronic instantaneous water heater
- Cold water connection (1/2")
- Hot water connection (1/2")
- Seals
- Mounting plate
- Central screw
- Mounting template
- User and installation manual
- Product data sheet
- Energy efficiency label
Screws and dowels are not included as they must be selected based on the specific mounting situation.
3.2 Mounting Location
The appliance is designed for vertical wall mounting. Ensure the chosen location complies with DIN 57100/VDE 100 protection zones (e.g., more than 60 cm from showers, bathtubs, sockets, or sinks). Under-sink installation may require additional accessories (article numbers 000479, 0020138088, 308086).
Figure 2: Example installation of the water heater in a bathroom environment.
3.3 Electrical Connection
The Vaillant VED E 18/8 requires a 400 V/50 Hz power supply. For the 18 kW model, a 5-wire connection cable with a cross-section of 6 mm² and a minimum three-phase protection of 32 amperes is required.
Figure 3: Technical requirements for electrical connection. For 18 kW, use 3 x 32 Ampere fuses and a 5 x 6 mm² cable.
3.4 Water Connections
Connect the cold water supply to the designated cold water inlet (R 1/2") and the hot water outlet to the hot water pipe (R 1/2"). Ensure all connections are sealed properly using the provided gaskets. The unit is compatible with all standard pressure-resistant water taps (two-handle mixer and single-lever mixer).
Figure 4: Detailed view of the cold and hot water connections at the bottom of the unit.
3.5 Commissioning
Before the first use, the appliance must be thoroughly vented. Open the tap and let water flow until no more air escapes. Only then should the electrical connection be made. This prevents damage to the heating elements.
4. Operating Instructions
The Vaillant VED E 18/8 features a digital display for precise temperature control.
Figure 5: Digital display showing temperature and control knob for adjustment.
4.1 Temperature Adjustment
The desired hot water temperature can be continuously adjusted from 30 °C to 55 °C using the control knob on the front panel. The integrated digital display shows the set temperature.
4.2 Hot Water Flow
The unit provides a hot water flow rate of 8 liters per minute, allowing for simultaneous hot water supply to multiple points like a shower, sink, or bathtub.
5. Maintenance
The Vaillant VED E 18/8 is designed for easy maintenance with easily replaceable components. Regular inspection by a qualified professional is recommended to ensure optimal performance and longevity.
- Periodically check water connections for leaks.
- Ensure the area around the appliance is clean and free from obstructions.
- For any internal maintenance, always consult a qualified technician.
6. Troubleshooting
If you experience issues with your water heater, please consider the following:
- No hot water: Check the electrical supply and circuit breakers. Ensure the unit was properly vented during commissioning.
- Insufficient hot water: Verify the set temperature. Check water pressure.
- Error codes on display: Refer to the full installation and operating manual for specific error code interpretations.
For complex issues or repairs, contact a qualified Vaillant service technician. Do not attempt to repair the unit yourself, as this may lead to further damage or safety hazards.
7. Technical Specifications
Below are the key technical specifications for the Vaillant VED E 18/8 Electronic Instantaneous Water Heater:
| Feature | Specification |
|---|---|
| Manufacturer | Vaillant |
| Model Number | 0010023777 |
| Dimensions (L x W x H) | 24 x 24 x 48.1 cm; 4.38 kg |
| Power | 18 kW |
| Voltage | 400 V |
| Frequency | 50 Hz |
| Material | Plastic |
| Installation Method | Wall mounting |
| Flow Rate | 8 liters per minute (hot water), 10 liters per minute (max) |
| Noise Level | 15 dB |
| Display Type | LED |
| Protection Type | IP25 (Jet-proof) |
| Fuse Rating (recommended) | 3 x 32 Amperes |
| Cable Cross-section (recommended) | 6 mm² |
| Energy Efficiency Class | A |
| Annual Electricity Consumption | 470 kWh |
Figure 6: Energy efficiency label for the Vaillant VED E 18/8, showing Class A rating and 470 kWh annual consumption.
For detailed product information and compliance, refer to the EPREL database: https://eprel.ec.europa.eu/qr/1532813
8. Warranty and Support
8.1 Warranty Information
Specific warranty details are typically provided with your purchase documentation. Please retain your proof of purchase for warranty claims. For any warranty-related inquiries, contact your retailer or Vaillant customer service.
8.2 Customer Support
For technical assistance, spare parts, or service, please contact Vaillant customer support:
- Manufacturer: Vaillant GmbH
- Support Department: Vaillant Certification Department
- Email: info@vaillant.de
- Website: www.vaillant.com
- Telephone: +49 180 6 824552
- Address: Berghäuser Str. 40, 42859 Remscheid, Germany
