1. 서론
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. 안전 정보
Always adhere to local electrical codes and safety regulations during installation and operation. Disconnect power before performing any maintenance or installation procedures.
- 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.
- 적절한 접지를 확인하십시오.
- 부품이 손상된 경우 선풍기를 작동하지 마십시오.
3. 제품 특징
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.
- 통합 열 보호 기능: Built-in thermal contacts with automatic reset for motor safety.
- 유연한 설치: Installation is possible in any mounting position.
- Outdoor and Damp Room Use: 야외 및 d에 적합amp environments due to its airtight housing and IP44 motor protection.
- Reliable and Maintenance-Free: Designed for dependable operation with minimal maintenance requirements.
- 효율적인 디자인: Features backward-curved impeller blades and external rotor motors for optimal performance.
- 쉬운 장착: Includes a mounting bracket for straightforward installation and removal.
4. 기술 사양
| 매개변수 | 값 |
|---|---|
| 모델 | K 125M Sileo |
| 권tage | 230V |
| 빈도 | 50Hz |
| 단계 | 1~ |
| Electrical Power Consumption (P1) | 28.2와트 |
| 현재의 | 0.164A |
| Max. Volume Flow | 187m³/시 |
| 속도 | 2491 1/분 |
| 무게 | 2.3kg |
| Max. Medium Temperature | 70도 |
| Max. Medium Temperature (Speed Controlled) | 70도 |
| Sound Pressure Level at 3m (20m³ Sabin) | 34.2dB(암페어) |
| 절연 등급 | B |
| Protection Class, Motor | IP44 |
| 연결 직경 | 125mm |
| Energy Class (Basic Unit) | F |
| Energy Class (Basic Unit Option) | C |
| ErP Ready | ERP 2018 |
| 제조업체 | 시스템 에어 |
| ASIN | B07ZP91RP2 |
| 제조업체 참조 | 103573 |

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. 설치 및 설정
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 장착
- 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 전기 연결
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. 운영
The Systemair K 125M Sileo fan is designed for continuous operation within its specified parameters.
6.1 속도 제어
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. 유지관리
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.
- 청소: 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.
- 점검: 전기 연결부가 단단히 고정되었는지, 마모 흔적이 있는지 확인하십시오.
- 문장: The fan's motor bearings are typically sealed and do not require lubrication.
8. 문제 해결
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).
- 감소 된 기류 : Inspect ducts for obstructions or leaks. Check if the fan speed controller is set correctly.
- 비정상적인 소음이나 진동: 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.
- 과열: 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. 보증 및 지원
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.





