1. The fan should be as arranged on aerodromes or platform, in order to maintain and repair; when equipped with centrifugal fan motor power is less than or equal to 75kW when Shandong fresh air ventilator, do not just start with the installation of valves . When the result of the carriage of high temperature gas or air and the choice of boiler centrifugal fan, should be set up to start with the valve, causing the motor to prevent overload cold running. 2. Fan mounting pedestal (base) should have sufficient strength, stability and durability, vibration pedestal shall meet the following requirements: a natural frequency) base unit shall not exceed 1/3 of the motor and fan speed; 2 ) difference vibration velocity and vibration velocity fan stationary fan operation must be greater than the time of more than 3 times. The connection between the import and export of fresh air duct 3. ventilator fan maintenance, flexible joints should be located. Inlet duct, the duct, and other devices should separate fresh air ventilator support by other members of the building foundation or support firm, should not bear the weight of the housing of other parts. 4. When the fan is mounted on the building elements, isolation measures should be taken to two principles: to determine the minimum amount of exhaust inside the housing to meet people's daily work, the amount of fresh air needed rest. By country ventilation standards, 30 cubic meters per person per hour must ensure that, once an hour or ventilation, whichever is greater. Shandong new wind ventilators | new wind ventilators | Rich ventilation equipment provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Plumper ventilation equipment into the brilliant and you work for a better future!