1. Duct fan use for delivery the gas non-flammable,no corrode,no Stickiness.Mass content can not bigger than 100 mg/m3,the maximum condition temperature is 40¡æ-80¡æ

2. Duct fan suitable install in indoor room,if it was installed in outside, should think about the rain-proof for the motor.The install position should think about the maintenance in future.lt should be installed according to the air stream direction.lt should be fixed,and motor wire connection should be follow with diagram

3. Prohibit the fan run in over current,the motor running current can not over the motor rated current

4. When start the fan, make sure the rotate direction is same as indicate on the fan. Make sure there no noise of rubbing and hit when the fan is running.

5. The fan should be maintenance regular,before maintenace make sure the fan was stopped,and the power was cut off. Cleaning the dirty on the impeller at least once every year.

6. Fan selection should be follow the needed air volume and pressure (total pressure or static pressure)