Henan fan manufacturers Company Name: Henan Hong Blower Co., Ltd. Company website: www.henanhongjifengji.com company sales hotline: 0394-7892627 15518086290 QQ: 445528270 centrifugal fan motor power is required to refer certain conditions, for centrifugal fan wind chassis, the required air inlet fully open higher power. If the inlet operated fully open, there is risk of damage the motor. When the fan is best to test the fan inlet or outlet valve on the pipeline closed, will gradually open the valve operation, until the desired working conditions, and pay attention to the fan operating current exceeds the rated current.