Systemair K 125M Sileo Duct Fan

1. Introducción

This manual provides detailed instructions for the installation, operation, and maintenance of the Systemair K 125M Sileo duct fan. The K-series fans are designed for efficient air handling in duct systems, featuring robust construction and reliable performance. Please read this manual thoroughly before installation and operation to ensure safe and correct use of the product.

2. Información de seguridad

Cumpla siempre con los códigos eléctricos y las normas de seguridad locales durante la instalación y el funcionamiento. Desconecte la alimentación antes de realizar cualquier mantenimiento o instalación.

• The fan is equipped with built-in thermal contacts with automatic reset to protect the motor from overheating.
• The airtight, folded galvanized steel housing (leak rate according to tightness class C, EN 12237:2003) allows for installation in damp rooms and outdoor areas.
• The motor has a protection class of IP44.
• Asegure una conexión a tierra adecuada.
• No opere el ventilador si alguna pieza está dañada.

3. Características del producto

The Systemair K 125M Sileo duct fan offers the following key features:

• Speed-Controllable: Can be controlled using a stepless thyristor or a 5-step transformer.
• Protección térmica integrada: Built-in thermal contacts with automatic reset for motor safety.
• Instalación flexible: Installation is possible in any mounting position.
• Outdoor and Damp Room Use: Adecuado para exteriores y damp environments due to its airtight housing and IP44 motor protection.
• Confiable y sin mantenimiento: Designed for dependable operation with minimal maintenance requirements.
• Diseño eficiente: Features backward-curved impeller blades and external rotor motors for optimal performance.
• Fácil montaje: Includes a mounting bracket for straightforward installation and removal.

4. Especificaciones técnicas

Figure 4.1: Maximum Efficiency and Operating Data Table. This table provides detailed performance metrics including airflow, static pressure, power consumption, and sound levels at various frequencies.

Figure 4.2: Energy Efficiency Labels. Displays the energy class ratings for the basic unit (F) and an optional configuration (C), along with sound power level (29 dB) and airflow (90 m³/h).

5. Instalación y configuración

The K-series fans are designed for easy duct mounting. Ensure the installation location is suitable and allows for proper airflow and access for maintenance.

Figure 5.1: Systemair K 125M Sileo Duct Fan. This image shows the main product view of the cylindrical duct fan with its integrated control box.

5.1 Montaje

• The fan comes with a mounting bracket to facilitate easy installation and removal.
• All K-fans feature duct connections at least 25 mm long, compliant with EN 1506:1997, for secure attachment to ductwork.
• For vibration-free connection to the duct system, consider using FK connecting sleeves (available as accessories).
• The fan can be installed in any mounting position (horizontal, vertical, etc.).

Figure 5.2: Dimensions Diagram. This technical drawing illustrates the various dimensions (A, B, C, D, E, F) of the fan, crucial for planning installation space and duct connections.

5.2 Conexión eléctrica

Connect the fan to a 230V, 50Hz, single-phase power supply. Ensure all wiring is done by a qualified electrician and complies with local regulations. The fan is equipped with an external rotor motor.

6. Operación

The Systemair K 125M Sileo fan is designed for continuous operation within its specified parameters.

6.1 Control de velocidad

The fan's speed can be controlled to adjust airflow as needed. This can be achieved using:

• A stepless thyristor controller.
• A 5-step transformer.

Refer to the performance diagrams to understand the fan's behavior at different operating points.

Figure 6.1: Performance Diagrams. These graphs illustrate the fan's static pressure (P stat.) and power consumption (P) in relation to the volume flow (Q), providing insight into its operational characteristics.

7. Mantenimiento

The Systemair K 125M Sileo fan is designed to be reliable and largely maintenance-free. However, periodic checks can help ensure optimal performance and longevity.

• Limpieza: Periodically inspect the impeller and housing for dust and debris accumulation. Clean gently with a soft brush or cloth. Ensure power is disconnected before cleaning.
• Inspección: Compruebe las conexiones eléctricas para comprobar que estén bien apretadas y que no presenten signos de desgaste.
• Aspectos: The fan's motor bearings are typically sealed and do not require lubrication.

8. Solución de problemas

If you encounter issues with your Systemair K 125M Sileo fan, consider the following common troubleshooting steps:

• Fan not starting: Check the power supply, circuit breaker, and electrical connections. Ensure the thermal contacts have not tripped (they reset automatically).
• Flujo de aire reducido: Inspect ducts for obstructions or leaks. Check if the fan speed controller is set correctly.
• Ruido o vibración inusual: Ensure the fan is securely mounted. Check for any foreign objects in the impeller or housing. Verify that the FK connecting sleeves are properly installed if used.
• Calentamiento excesivo: Ensure adequate ventilation around the fan. Check for obstructions that might restrict airflow. The built-in thermal contacts should protect the motor.

If problems persist after performing these checks, contact qualified service personnel or Systemair support.

9. Garantía y soporte

For warranty information, please refer to the terms and conditions provided at the time of purchase or contact your Systemair dealer. Keep your proof of purchase for warranty claims.

For technical support, spare parts, or service inquiries, please contact your local Systemair representative or the seller from whom you purchased the product. Provide the model number (K 125M Sileo) and serial number (if applicable) when seeking support.