Electronic Product Manufacturing PCB estorage board,electric blanket pcba,electric blanket pcba assembly Dongguan Jingling Communication Technology Co., Ltd. , https://www.jlpcba.com
Subdivision induced draft fan startup precautions and outage steps
**Precautions for Starting Induced Draft Fans:**
When initiating the operation of the second induced draft fan, it’s crucial to ensure that the operating point of the first fan is reduced to the lowest possible position along the stall line. This adjustment minimizes the risk of operational instability and ensures smooth performance once the second fan is brought online. Additionally, after both fans are operational, their loads must be evenly balanced to maintain system efficiency and prevent excessive wear on either unit.
**Steps for Shutting Down Induced Draft Fans:**
In normal operating conditions, the shutdown process of an induced draft fan should ideally be executed automatically through pre-programmed sequences or manually following a structured procedure. In case of emergencies, you can stop the fan immediately by pressing the local emergency button. However, if opting for manual shutdown, adhere to the following detailed steps to ensure safety and proper closure:
1. Begin by gradually closing the inlet vanes of the induced draft fan to reduce airflow systematically.
2. Next, halt the main motor of the induced draft fan to stop its mechanical operation.
3. Subsequently, close the fan's inlet baffle to seal off the air passage.
4. Depending on operational needs, decide whether to shut the outlet baffle as well.
5. Finally, wait for 10 minutes before deactivating the motor oil station to allow residual heat to dissipate safely.
By carefully following these steps, you can ensure a controlled and safe shutdown of the induced draft fan while minimizing potential risks to equipment and personnel.