1. Okwu mmalite na gafereview
The Schellenberg 25555 Zeitschaltuhr Plus is an advanced, flush-mounted timer switch designed for the automated and convenient control of roller shutter motors. This device allows you to program daily and weekly schedules for your roller shutters, enhancing comfort, security, and energy efficiency in your home. Its user-friendly interface, featuring a large display and three intuitive buttons, ensures easy operation and programming.
This timer switch is compatible with Schellenberg STANDARD and PLUS tube motors and can be expanded with an optional sun sensor PLUS for additional automated functions.
2. Kedu ihe dị na Igbe ahụ
Upon unpacking your Schellenberg 25555 Zeitschaltuhr Plus, please ensure all the following components are present:
- 1x Schellenberg Zeitschaltuhr Plus Timer Switch
- 2x Screws for flush-mounted switch box installation
- 1x Comprehensive and illustrated assembly and operating instructions (physical manual)

Image: The retail packaging of the Schellenberg Zeitschaltuhr Plus, showing the timer switch and indicating "Made in Germany" and "Optional Sensor."
3. Atụmatụ
The Schellenberg 25555 Zeitschaltuhr Plus offers a range of features designed for optimal roller shutter control:
- Ndakọrịta moto: Designed for comfortable control of Schellenberg STANDARD and PLUS tube motors.
- Mgbasawanye: Can be expanded with the Schellenberg Sun Sensor PLUS for automatic sun protection.
- Ngosipụta Enyi na Enyi: Features a large display for excellent readability of time and program settings.
- Ọrụ dị mfe: Easy control and programming via three distinct buttons.
- Nhọrọ mmemme: Includes both daily and weekly programming capabilities to suit various routines.
- Ụdị ezumike: A random generator function simulates presence during vacation periods, enhancing home security.
- Environmental Functions: Integrated sun and twilight functions for automated control based on light conditions.
- Automatic Time Change: Automatically adjusts for summer and winter time changes, eliminating manual adjustments.
- Nchekwa Ike: Equipped with approximately 5 hours of power reserve to maintain settings and time during power outages.

Foto: Ihe dị nso n'ihu view of the Schellenberg Zeitschaltuhr Plus, showing its digital display and three control buttons.
4. Ntọala na nwụnye
Installation of the Schellenberg Zeitschaltuhr Plus requires electrical work and should ideally be performed by a qualified electrician or a person with appropriate technical knowledge. Always ensure the main power supply to the circuit is switched off before beginning any installation work.
4.1. Nkwalite chọrọ
The timer switch is designed for flush-mounted installation in a standard electrical switch box. Ensure the switch box is adequately sized to accommodate the device and its wiring. The provided screws are for securing the unit within the flush-mounted box.
4.2. Ihe nkedo
Refer to the detailed wiring diagram provided in the comprehensive assembly and operating instructions included with your product. Incorrect wiring can lead to malfunction or electrical hazards. Pay close attention to the connections for power supply, motor control (up/down), and any optional sensor connections.
4.3. Ike Mmalite
After installation and wiring are complete, restore power to the circuit. The display should illuminate. You may need to set the current time and date as part of the initial setup process.

Image: The Schellenberg Zeitschaltuhr Plus installed on a wall, demonstrating its use in controlling a roller shutter.
5. Ntuziaka ọrụ
The Schellenberg Zeitschaltuhr Plus is operated using its three front-facing buttons and the digital display. The exact sequence for programming may vary slightly, so always consult the included manual for precise steps.
5.1. Setting Current Time and Date
Upon initial power-up or after a prolonged power outage (beyond the 5-hour reserve), you will need to set the current time and day of the week. Use the designated buttons (typically up/down arrows or menu buttons) to navigate and adjust values, confirming with a central 'OK' or 'Set' button.
5.2. Ọrụ ntuziaka
The device allows for manual control of the roller shutters. Typically, dedicated buttons or a specific mode will enable you to open or close the shutters instantly, overriding any programmed schedules temporarily.
5.3. Programming Schedules (Daily/Weekly)
Access the programming menu to set specific opening and closing times for your roller shutters. You can usually set different times for each day of the week or apply a single schedule to all weekdays and another for weekends. The large display facilitates easy entry and review of these times.
5.4. Ọrụ Pụrụ Iche
- Random Generator: Activate this mode for vacation periods. The timer will vary the programmed opening and closing times slightly each day to simulate occupancy, deterring potential intruders.
- Sun/Twilight Function: If an optional sun sensor is connected, this function allows the roller shutters to react automatically to sunlight (e.g., closing when intense sun is detected) or twilight (e.g., closing at dusk).
- Automatic Summer/Winter Time: This feature ensures the clock automatically adjusts for daylight saving time changes, removing the need for manual intervention.
6. Nlekọta
The Schellenberg Zeitschaltuhr Plus is designed for long-term, maintenance-free operation. Follow these guidelines to ensure its longevity:
- Nhicha: To clean the surface of the device, use a soft, slightly damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the display or casing.
- Enweghị akụkụ ndị ọrụ nwere ike ịrụ ọrụ: The device contains no user-serviceable parts. Do not attempt to open or repair the unit yourself. Any unauthorized opening will void the warranty.
- Ọnọdụ gburugburu: Ensure the device is installed in an environment free from excessive moisture, dust, or extreme temperatures, which could affect its performance.
7. Nchọpụta nsogbu
If you encounter issues with your Schellenberg Zeitschaltuhr Plus, consider the following common troubleshooting steps:
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Ngosipụta bụ oghere ma ọ bụ na ọ naghị enwu. | Enweghị ọkụ ọkụ; ike gitage; internal fault. | Check the circuit breaker. Verify power supply to the unit. If power is restored after an outage, the internal reserve should maintain settings for up to 5 hours. If still blank, consult a professional. |
| Roller shutter does not move according to program. | Incorrect programming; manual override active; motor issue; sensor interference. | Verify programmed times and days. Ensure the device is in automatic mode, not manual. Check if the random generator or sun/twilight function is active and overriding. Consult the motor's manual if the motor itself is unresponsive to manual commands. |
| Time or settings are lost after a power outage. | Ike gitage exceeded the 5-hour power reserve. | Reset the current time and reprogram any lost schedules. This is normal behavior if the power reserve is depleted. |
| Bọtịnụ anaghị anabata ya. | Temporary software glitch; physical damage. | Try briefly cutting power to the unit at the circuit breaker and then restoring it. If the issue persists, the unit may require professional inspection. |
For more complex issues or if the above steps do not resolve the problem, please refer to the detailed troubleshooting section in your product's full instruction manual or contact Schellenberg customer support.
8. Nkọwapụta
| Njirimara | Nkọwa |
|---|---|
| Ụdị | Schellenberg |
| Nọmba nlereanya | 25555 |
| Akụkụ ngwaahịa | 5 x 2.5 x 5 cm (ihe dị ka 2 x 1 x 2 sentimita) |
| Ibu Ibu | 200g (ihe dị ka 0.44 lbs) |
| Agba | Ọcha |
| Ike Reserve | Approx. 5 hours (in case of power failure) |
| Oge mgbanwe | Automatic summer/winter time adjustment |
| Ndakọrịta | Schellenberg STANDARD and PLUS tube motors |
9. Ozi nchekwa
Please read and adhere to all safety instructions to prevent injury or damage to the device:
- Nchekwa Eletriki: Installation and maintenance should only be performed by qualified personnel. Always disconnect the main power supply before working on the device or its wiring.
- Ezubere iji: Use the device only for its intended purpose as a timer switch for roller shutter motors. Any other use may result in damage or hazard.
- Mmiri: Do not expose the device to water or high humidity. Install in dry indoor environments only.
- Ụmụaka: Keep the device and its packaging out of reach of children.
- Mmebi: Do not operate the device if it appears damaged. Contact customer support for assistance.
- mkpofu: Dispose of the device according to local regulations for electronic waste. Do not dispose of with household waste.





