Installation and connection of the channel fan

The main element of any forced ventilation system is a fan. It is designed to provide high-quality recycling of air in both domestic and industrial premises. The model is chosen depending on the prepared project, and the installation of a channel fan is possible even for a novice master.

The simplest ventilation scheme with a duct fan is shown in the figure.

Variety of duct fans

There are several types of duct fans, adapted for installation in ducts of a specific configuration.

Axial

This type creates a flow of air directly through the ducts by rotating the device withblades around its axis, with the direction of mass movement coincides with the rotation of the shaft. The effectiveness of such devices reaches 75%.

Radial

Such duct-type products effectively draw the exhaust air from their various premises with the help of centrifugal force. For installation in a room for water procedures, an ideal product is the one whose working blades will be bent against rotation - their efficiency increases up to 80%, and there is no strong noise at work.

Combined

The symbiosis of the radial and axial channel fan is considered by specialists in the operation of similar equipment to be one of the modern achievements in the improvement of this type of products. The principle of operation is based on the effect of centrifugal forces on the air flow and the rotation of the motor shaft, and the efficiency of use reaches 80%.

Product Features

In order to properly install a channel fan with their own hands, each user needs to know its technical characteristics:

• max air flow rate - 5330 m³ / h;
• max pressure - 900 Pa;
• perforations for fastening with pipelines - 100-400 mm;
• low sound level;
• performance can be adjusted;
• installation is fast, without the need for special skills;
• maintenance, timely cleaning during operation does not take much time.

The pipeline is sure to be done special hatchso that it is convenient to inspect the device and perform the necessary maintenance work.

What you need for installation

When installing a duct fan, you need to properly connect it to the duct to avoid leakage, the air flow must move smoothly without pulsation. Air ducts come in three basic sections: square, circle and rectangle. Channel fans are initially equipped square flangestherefore, during their installation, it is necessary to determine the use of adapters and various inserts.

There are models of fans, the installation of an electric drive that can be made in a different position, but there are those where the engine can only be installed in a horizontal or vertical position. When assembling structures with your own hands, you need to check with the installation scheme recommended by the manufacturer.

To properly install and connect the duct fan to the mains, you need the following elements:

• component parts of the duct;
• the fan itself;
• spring or rubber dampers;
• channel connectors, sealing inserts;
• electrical cables, protective devices (azo), devices for high-quality grounding.

Similar systems of the established sample are used in rooms where there is high humidityBut there are no window openings: rooms for personal hygiene, laundries located in the basement or basement.

The ventilation system can have an extensive network and a different section, but the fan of the indicated type is always installed inside the duct or mounted in the duct pipe in compliance with all recommendations.

Among the advantages of using such equipment, experts note the following factors.

1. A very simple installation that meets all established standards.
2. The device can be positioned in any position convenient for installation; you only need to select the appropriate model.
3. A fan can be connected to any electrical network quickly; special terminals in a box on its case.
4. You can adjust the air flow to increase the performance of the product.

One of the most common ways of fastening fans is to install them on threaded steel rods and tape with holes or on brackets.

Installation Features

Before starting the installation, it is necessary to register and approve this project in the state structures responsible for the operation of the building.. It should list the conditions for the use of the entire system of future ventilation, the order of work, the materials used and the layout of the ventilation ducts and shafts.

Channel fans are installed anywhere in the duct and at any angle, the most cost-effective - it is rectangular section of all ductsIn this way, free space is saved.

To increase performance, install several fans in parallel, and to increase the working pressure they are mounted in series.

For ventilation of any size of the bathroom is enough one channel product.To ensure tightness, use special components, and to eliminate unwanted vibration - gasket material that absorbs the negative effects of vibrations and reduces the noise from the operation of the device.

To exercise the necessary control over the parameters of the product set tracking systemsif such actions are necessary. The control panel is displayed in a convenient place; special thyristor-type devices are used to adjust the rotational speed.

Electrical connection

A properly connected fan is always energized - the so-called standby mode, as indicated by the indicator located on its case. Many models are equipped on timerswhich start the device after the end of the water treatment and turn it off after a user-defined time sufficient for effective ventilation.

How to connect the duct fan to the home electrical network? The connection diagram enclosed in the product instruction manual will help.

Many products can work in any position; when installing and connecting them, the following rules must be strictly followed:

• it is necessary to leave areas of at least one and a half meters in front of the suction and discharge nozzles;
• flanges with a diameter or side length of more than 400 mm must be strengthened with additional fastenings;
• the fan is fixed on independent suspensions or brackets in order to avoid excessive load on the duct and its flexible inserts;
• install the product in such a place as to provide convenient access to it through regular hatches, arranged in the duct for its proper operation;
• at high humidity of the transported air flow, when there is a danger of condensation, then the duct fan with an opening plate of the electric motor is mounted with a bell up.

The instructions for using the device have all the recommendations of the manufacturer for its proper installation with all precautions.

Advantages of channel fans

These devices have such undoubted advantages:

• very high performance and efficiency;
• low noise impact on others;
• unconditional compact arrangement;
• accurate shaft balancing, which contributes to long work without the necessary maintenance;
• simple installation.

When choosing this type of fan for a room where the personal hygiene of everyone living in an apartment is carried out, users should pay attention to product diameterso that it fits the size of duct used. In addition, it is worth taking a look at the special parameter that is responsible for the exchange of air per unit of time for the room where the product will be installed, so that the performance is appropriate. For a bathroom, this value will be equal to 8, for a bathroom - 10, and for a shower it increases to 25. In order to accurately calculate the fan capacity required for high-quality ventilation of your room, you must know the volume of the room and multiply it by the standard air exchange rate.

For example, with a height of 2.75 m and an area of ​​5.5 square meters. meters of the bathroom, the fan performance must be at least 5.5 x 2.7 x 8 = 121 m³/ h

Knowing the calculated value of the performance, it is easy to choose the appropriate channel fan.