Stainless steel fan boot matters needing attention

2. If the fan is required to run at "working frequency", just turn the corresponding switch of the drum fan on the electrical cabinet to "working frequency", and then press the "start" button. Other switches of the fan and the switch of the frequency converter turn to "stop". Before pressing the "Start" button, please pay attention to the inspection operation. After the fan is running normally, slowly close the exhaust valve to prevent the fan from burning the motor due to excessive instantaneous current. When the stainless steel fan is turned off, slowly open the "exhaust valve" until it is fully opened, and then press the "stop" button on the electrical control box.