1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your SIME UNIQA REVOLUTION 25 Instantaneous Wall-Mounted Boiler. Please read this manual thoroughly before installation or use and keep it for future reference.
The UNIQA REVOLUTION 25 is a high-efficiency instantaneous wall-mounted boiler designed for both heating and domestic hot water production, featuring an active recuperator. It is specifically designed for replacing traditional sealed chamber boilers.
Safety Information
- Installation and maintenance must be performed by qualified and authorized personnel only.
- Do not attempt to repair or modify the boiler yourself.
- Ensure proper ventilation in the installation area.
- Keep flammable materials away from the boiler.
- In case of gas smell, immediately shut off the gas supply, open windows, and contact a qualified technician.
2. Setup and Installation
The SIME UNIQA REVOLUTION 25 boiler must be installed by a certified professional in accordance with all local and national regulations and standards.
Product Overview
Figure 2.1: Front view of the SIME UNIQA REVOLUTION 25 boiler, showing its compact design and integrated control panel.
Dimensions and Space Requirements
Ensure adequate space around the boiler for installation, maintenance, and ventilation. Refer to the technical drawing below for precise dimensions.
Figure 2.2: Technical dimensions of the SIME UNIQA REVOLUTION 25 boiler. Dimensions are approximately 40 cm (width) x 34.5 cm (depth) x 70 cm (height).
Connections
The boiler requires connections for gas, cold water inlet, hot water outlet, heating flow and return, and condensate drain. Electrical connection is also necessary. All connections must be made by a qualified technician according to local regulations.
3. Operating Instructions
Control Panel Overview
The boiler features an intuitive control panel with a digital display and buttons for adjusting settings. Refer to Figure 2.1 for the location of the control panel.
- Display: Shows current temperature, operating mode, and error codes.
- Mode Button: Cycles through operating modes (e.g., heating only, hot water only, heating and hot water).
- Temperature Adjustment Buttons (+/-): Used to increase or decrease the desired heating or domestic hot water temperature.
- Reset Button: Used to reset the boiler after an error code appears.
Turning On/Off
To turn on the boiler, ensure the gas supply is open and the electrical power is connected. The boiler will typically initiate a self-check. To turn off, use the main power switch or consult your installer for specific instructions.
Temperature Adjustment
Use the temperature adjustment buttons on the control panel to set your desired heating and domestic hot water temperatures. The current setting will be displayed on the digital screen.
4. Maintenance
Regular maintenance is crucial for the longevity and efficient operation of your boiler. Always ensure the boiler is switched off and isolated from power before performing any maintenance.
User Maintenance
- Check System Pressure: Periodically check the system pressure gauge (if visible on the boiler or external system). Maintain pressure within the recommended range (typically 1.0-1.5 bar when cold).
- Clean Exterior: Wipe the exterior casing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ventilation: Ensure that the boiler's ventilation openings are not obstructed.
Professional Servicing
It is highly recommended to have your SIME UNIQA REVOLUTION 25 boiler serviced annually by a qualified and certified technician. Annual servicing ensures optimal performance, safety, and compliance with warranty terms.
5. Troubleshooting
This section provides solutions for common issues you might encounter. For complex problems or if the issue persists, contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| No heating or hot water | No power, gas supply off, low system pressure, thermostat setting too low. | Check power supply, ensure gas valve is open, check system pressure and repressurize if necessary, increase thermostat setting. |
| Low system pressure | Water leak in the system, expansion vessel issue. | Repressurize the system using the filling loop (refer to installer instructions). If pressure drops frequently, contact a technician to check for leaks. |
| Boiler displaying an error code | Internal fault, specific system issue. | Note the error code. Try pressing the Reset button. If the error persists, contact a qualified technician and provide the error code. |
| No hot water, but heating works | Diverter valve issue, flow sensor fault. | Contact a qualified technician. |
6. Specifications
Below are the key technical specifications for the SIME UNIQA REVOLUTION 25 boiler:
- Thermal Power: 8.9 to 22.9 kW
- Domestic Hot Water Flow Rate (EN 13203): 10.4 l/min
- Heating Energy Efficiency Class: B
- Sound Power (Heating): 54 dBA
- Domestic Hot Water Energy Efficiency Class: A
- Declared Load Profile (DHW): XL
- Product Dimensions (W x D x H): Approximately 40 cm x 34.5 cm x 70 cm
- Product Weight: 45 kg
- Manufacturer: Sime
- Style: Traditional
- Efficiency (10 classes): A+++ to D
7. Warranty and Support
For information regarding the warranty terms and conditions for your SIME UNIQA REVOLUTION 25 boiler, please refer to the warranty card provided with the product or contact your authorized SIME dealer or installer. Keep your proof of purchase for warranty claims.
For technical support, spare parts, or professional servicing, please contact your original installer or an authorized SIME service center. Do not attempt to service the boiler yourself.
