Livestock fan maintenance, electrical maintenance and maintenance 1, first disconnect the mains, check the ground if the ground is good; 2, check the parts and screws are tight coupling 3, control manual, test the insulation resistance of the motor is specified, Check the main circuit contacts. If severe erosion or wear contacts powerful contacts should be replaced immediately. Natural ventilation, by indoor and outdoor air pressure (air flow) and temperature to determine the ventilation ventilators. Features: small size, ventilation affected by the environment, noise less effective, Changzhi without power fan, can not enter the room of fresh air to remove dust treatment. 1, energy-saving, environmental protection: no power consumption, no new noise sources, sustainable ventilation; 2, large ventilation: large air exchange channel design, and adjustable ventilation; 3, good insulation properties: housing aluminum alloy, internal caulking insulation materials, non-powered fan manufacturing equipment, heat insulation, sound insulation better; 4, no maintenance: reasonable structure, without power fan typhoon, no power components, all the parts were not corrosion possible; 5, noise reduction: reduce noise in the air passage of the structural design and sound deadening material, to minimize interior noise; 6, easy installation: in terms of installation, structural design, material selection and other aspects are fully taken into account the different usage, without power fan assembly drawing, security, high reliability; 7, insects, dust: pest control, ventilation channels on the air filter; 8, appearance: But now the screw head, no protruding parts, Its stepless adjustment mode can be turned into the wind adjusted according to pressure conditions. Changzhi without power fan | Flextronics ventilators | non-powered turbine manufacturing equipment from Liaocheng Ventilation Equipment Co., Ltd. Flextronics. Liaocheng Flextronics ventilation equipment (www.lcwctf.com) (www.lcwctf.com) is an industry leader in Shandong Liaocheng, 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. Flextronics ventilation in leadership with the staff warmly welcome all inquiries negotiations to create Flextronics ventilation a better future.