1. The fan installation pedestal (foundation) should have sufficient strength, stability and durability, and the vibration of the pedestal should meet the following requirements:
a) The natural vibration frequency of the basic device shall not be greater than 1/3 of the speed of the motor and fan;
b) The difference between the vibration speed of the ventilator when it is running and the vibration speed of the ventilator when it is at rest must be more than 3 times.
2. The connection between the fan inlet and outlet and the air duct should be provided with a flexible connector. The air inlet pipe, air outlet pipe and other devices should be supported separately, and supported firmly by the foundation or other components of the building, and the housing should not bear the weight of other parts.
3. Fan installation can be carried out with reference to the following building standard design atlas.
