Negative pressure fan installation precautions:
1, negative pressure fan is best to choose to install in the middle of the building indoors, away from the high temperature and stuffy heat, smoke and odors produced by the location of the concentration of the vicinity; if possible, if possible, mounted in the cooling environment in the direction of the dominant wind; can be mounted on the indoor walls, windows, roofs, indoor load-bearing columns, but pay attention to the installation environment! It should ensure the air is smooth and fresh, especially should not be installed at the exhaust port where there is foul smell or odor gas. If there is not enough door or window, you need to install a special air supply system, air supply system air volume should be greater than the negative pressure fan total air volume of more than 100-150%.
2, negative pressure fan installation should pay attention to the smooth, safe to ensure that the fan standing installation is smooth, not the direction, position inverted and tilt angle greater than 30 degrees installation.
3, negative pressure fan quality is the key, generally first confirmed good host, once in place, good, such as: Germany Tong, Jia Feng, and so on, to increase the service life and effect, reduce the failure rate.
4, negative pressure fan mounting bracket to use the national standard 4 * 4 or more specifications of the production of angle iron, and must be done to apply antirust paint to do rust treatment, mounting bracket bearing important to be able to support the entire weight of the negative pressure fan and the weight of the body of the two maintenance personnel, the negative pressure fan needs to be done to fix each corner of the firm, to avoid vibration when the negative pressure fan work and **** chirping noise.
5, negative pressure fan installed and fixed, pay attention to do a good job of negative pressure fan and the surrounding gap sealing, to prevent rainy days, rainwater leakage into the room, you can use sunshine board plug to fill in the large gap, glass sealing small gaps.
6, negative pressure fan performance must be energized in order to run, please professional electrician for power distribution, control switches to have a lack of protection, leakage protection, current overload protection and other functions, the use of wires and cables to be able to withstand the load of the motor current, all wires joints with electrical tape wrapped in insulation, all the lines are standardized buried in the wire groove wire pipe.