Energy: the transformation editor axial fan at startup, the motor current will be 5-6 times higher than nominal, not only will affect the life of the motor and consume more electricity system was designed on the motor selection will leave. a certain margin, the speed of the motor is fixed, but in actual use, sometimes at a lower or higher speed low-noise axial fan, frequency transformation is therefore very necessary. Drive motor soft start can achieve by changing the frequency of the input voltage equipment to achieve the purpose of energy-saving speed, and give the device to provide overcurrent, overvoltage, overload protection. 1. the use of air convection cooling principle square wall of negative pressure ventilation axial fans, by the installation location of the door or window --- natural fresh air axial fans, indoor outdoor hot gas quickly forced out side wall axial fan, any problems can improve poor ventilation, ventilation cooling effect of up to 90% -97%. 2. square axial fan motor and fan blade in a cylinder, the convenient shape is square, than the cylindrical type fan installation. Proof axial fans, air conditioning, Chen Yu (certified), axial fan Cangzhou city by Wu Chen Yu Air Conditioning Equipment Co.. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.