Installing a roof fan

To date, there are a huge number of mechanisms, the presence of which can not be called vital. However, in some cases one cannot do without them. Such devices include air-conditioning mechanisms, namely the roof fan. It performs an extremely important function in smoke removal. For example, the resulting smoke or gas in case of fire or other circumstances, the roof fan quickly removes from the room. If there is no such need, then it can work as an air-conditioning system or remain idle until an unforeseen situation occurs. Consider how to properly and in what sequence to install a roof smoke exhaust fan. So, what they are, and how to choose the roof fan.

Types of roof fans

Based on the design features, there are three types of fans that are more popular: centrifugal, diagonal and axial.

• Centrifugal. It is also called radial. According to the principle of operation, it is similar to axial and diagonal. His work is based on centrifugal force. Fan blades have a special shape that allows air to be drawn in.
• Diagonal. This type of fan is based on the operation of an axial fan. The blades suck air in the axial direction, and remove it in the diagonal.
• Axial. Today it is this fan that is most in demand. The blades rotate around the axis at a certain speed. As for the maintenance and installation work, it is most practical in this regard.

Choosing a roof fan

When choosing this unit in the first place should pay attention to the following parameters:

• structural reliability
• easy installation
• power,
• durability.

Among all the above, power is perhaps the main component, as in any other modern device. The rate of removal of deadly gas and smoke from industrial or warehouse premises will depend on this indicator. But if you want to use this installation in the domestic environment, then you should not overpay for a heavy-duty fan. That is, in each case, the choice should be made individually.

Note! If you choose a very powerful roof fan, then you will not be able to avoid overspending resources. On the other hand, a too weak installation will not do any good.

Also note the ease of installation. This is especially important if you want to install the roof fan yourself. Therefore, ease of installation is an important requirement. This also applies to its reliability. As a rule, the quality of the assembly and the parts used affect reliability. Therefore, pay attention to the manufacturer of the fan. For example, one of the most popular companies that produces reliable fans is System air. Fans of this company are in great demand in the countries of Asia, America and Europe. When choosing, you can see a large range; individual fans will differ in their power and, accordingly, performance. Therefore, you are guaranteed to be able to choose the fan that is ideal for your conditions.

Well, another important indicator is the duration of the continuous operation. Do not forget that today there is no technology that would not break. Sooner or later you will have to repair it. But if you immediately get a reliable system for smoke removal, it will serve as a guarantee of its long work.

Note! As soon as the active smoke removal system is activated, it automatically becomes unusable. Regardless of the service life, it must be completely replaced.

Installation of the roof fan

Before starting work, you should pay attention to its appearance, size, roof structure, its angle of inclination and what it is made of. It is on these factors that the choice of installation scheme will depend. How carefully you think it over and prepare it, the fan will last longer, and you will also significantly reduce your operating expenses.

Note! The installation site of the roof fan is determined taking into account vibration and noise level of the ventilation system. For this reason, the perfect place on the roof.

If the roof is made of soft material, then you should take care of additional protection from the resulting vibration and noise. In such cases, an individual project is developed. As for the hard roof, the installation of the fan begins with a glass. This construction is made of galvanized steel. If there are ventilation wells or shafts made of concrete or brick, they can be used when installing the glass. If they are not, then the glass in an upright position is installed on the roof carrier. The height of the glass should reach 400 mm, and the internal diameter of 700, 1000 or 1450 mm, based on the needs. After mounted pallet that will protect the main structure from foreign objects. It is attached with bolts, nuts and washers. Next, the fan itself is directly mounted.

Now we proceed to the most important process. Before mounting the fan, make sure that there is an anchor in the glass. Their number and diameter must correspond to those on the fan. Inspect and check the gaps between the impeller of the centrifugal fan and the inlet. Further, with the help of an automobile crane, the fan rises directly to the installation site. In the event that the use of a truck crane is not possible, use a rack or jack to install. Before installation, install a rubber gasket on the surface of the glass. When the fan is installed on the glass, anchor bolts are pushed through the holes.

Note! It is extremely important to install at least two nuts on each anchor bolt.

When all is fixed, take the sealant and seal the gap between the glass and the fan itself. If the glass was installed on a new design, then it is recommended to make a cement-sand screed. Aprons or galvanized skirts are installed along the contour of the glass, and the thermal insulation of the damaged roof layers is restored. In the course of this work, follow all recommendations and building codes. In this case, all the work will be done correctly.

As soon as all installation work is completed, it remains only to connect the device to the mains.

Video

Clearly the installation process is shown below: