1. The fire exhaust fan can be manually powered on to check the indicator light, as well as the power, current, and voltage meters. Ensure they are functioning properly. Additionally, inspect for any abnormal noises in the fire exhaust fan components and verify that the three-phase AC current values are balanced.

Ensure that the gaskets and sealing materials between each interface of the fire smoke exhaust fan and its alternatives are in perfect condition without any damage.

To ensure smooth operation, the surface of the coil and filter blades of the fire exhaust fan must be kept as clean as possible.

4. Clean the fire fighting exhaust fan's electrical and mechanical components, as well as the impeller and filters (function: filter impurities, etc.), and the internal casing. For areas where paint has chipped, apply rust-inhibiting paint for touch-up. The fire fighting high-temperature exhaust fan is suitable for high-rise buildings, underground structures, tunnels, drying rooms, and other ventilation or high-temperature exhaust applications. It can operate continuously for over 30 minutes at temperatures up to 280°C and run for 20 hours at a time without damage at a medium temperature of 100°C, making it an ideal fire protection facility.

5. Adjust the tension of the belt used for the fire exhaust fan, turn the fan wheel by hand, and observe whether the belt moves smoothly.

6. Fire Inspection Highlights: Excellent high-temperature resistance, high efficiency, and sturdy, sensitive operation of the regulating valve. If the regulating valve's operation is not sensitive, it should be replaced in a timely manner.

Fire Protection Features: Excellent high-temperature resistance, high efficiency; lubricant added to rotating parts to ensure the sensitivity and stability of couplings and bearings.