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The Lyuchki.RF store offers silent household fans for hoods from the Spanish company Soler & Palau. These are reliable models with a wide variety of characteristics, easy to install and operate.

Productive and silent

It is believed that the more powerful the ventilation, the more noise it will make. In general this is true.
However, low-noise household fans are designed to provide sufficient air exchange small spaces. They do not need such a high level of power as, say, for production shops.
So you don't have to choose between efficiency and personal comfort.

Silent exhaust fan

“Draws out” air, eliminating unpleasant odors and excess humidity, reducing the risk of mold formation and prolonging the durability of the interior.
At the same time, to ensure an optimal microclimate, you will need to take care of the flow of fresh air and occasionally ventilate the room.

Silent supply fans

They act on the strictly opposite principle - they “drive” fresh air into the kitchen, eliminate stuffiness, and promote the accelerated settling of steam and smoke.
However, they require an additional device to eliminate “exhaust” air. Since the layout and architecture of the room itself do not always allow for full circulation of air flows only due to the supply system.

How to choose?

The optimal characteristics of the model depend on many parameters, including the area and operating conditions of the room.
In the Lyuchki.RF store you can purchase a silent overhead fan with any:

• diameter
• productivity
• power
• color
• design
• additional options (timer, humidity sensor, etc.)

To choose a overhead household fan with optimal characteristics, contact our consultants. We have experienced specialists who are ready to answer any questions.

Noise from working ventilation system- a key disadvantage of an exhaust unit that provides air exchange in the room. At prolonged exposure it not only irritates, but also causes acoustic discomfort, irritability, chronic fatigue. Unwanted noise is often caused incorrectly installed equipment or using devices not intended for use in the conditions in which they are used. Difficulties arise during placement ventilation equipment in a limited space.

Silent technology will help offset the above disadvantages exhaust fan. We are talking about a small electrical appliance that you can install with your own hands.

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What is the point of the silent option?

It is no secret that even the “quiest” air exchange units produce a certain amount of noise during operation. If we talk about the minimum sound values, then average is at 35 dB. To the human ear, this is similar to a whisper. However, even such household appliances cause irritation with prolonged exposure.

If you install a silent fan instead of a regular one, you can provide conditions that are comfortable for the human ear. The volume of such devices is 20-25 dB, which is comparable to a very quiet whisper. At a distance of 1.5 m from the operating unit, the movement of the blades is practically indistinguishable.

Dependence of noise on the operating mode and performance of the device



How does a silent fan work?

Silent devices work at times quiet their analogues for a number of reasons, the main one of which is design features. The device consists of 3 main functional elements, thanks to which it is possible to reduce the sound effect to a comfortable 25 dB.

Structurally, the apparatus consists of:

• electric motor;
• device housing;
• bearings.

To form a general idea of ​​how exhaust propellers are designed and operate, you should take a closer look at their design.

Electric motor. Silent devices are equipped with the same motors as traditional devices. The differences come down primarily to the method of fixation. Reliable fastening minimizes noise generated by vibrations. In fairness, it is worth noting that poor-quality fastening of an electrical appliance is fraught with vibrations.

Electric motor

Device case. In most cases, the housing design is quite flimsy. Thin walls contribute to the occurrence of vibrations, accompanied by unpleasant sounds. As for the silent unit, it boasts a durable and solid design (provided you choose a quality product). Thanks to this approach, it is possible to cope with any vibrations.

The smooth operation of every part of the electric motor is ensured by high-quality bearings. Conventional units use conventional solutions.

note! Particular attention is paid to lubrication, thanks to which any noise or grinding noise is leveled out. This consistency extends the life of the device significantly.

Modern silent duct fans for exhaust hoods are characterized by impeccable workmanship. The finished product goes through several stages of testing before going on sale. And if the sound range standard is not met, then the fan does not pass the test. Significant noise can also occur if the unit is not balanced correctly.



What types of silent fans are there?

Exhaust-type household devices can be completely different in design. Each device is developed for specific operating conditions. Household appliance models are usually divided into 4 types:

• channel;
• axial;
• radial;
• invoices.

Duct. Placed at the base of the duct. There are no rubber elements in the body, which is the main cause of additional vibrations and noise during operation. However, they are much more efficient than conventional fans.

Short video review of a duct type device

Domovent VKO. Review of a household duct fan

Axial. They miss air currents in the direction in which the motor rotor moves. Noise is suppressed in the device body by 80%; there is no need to talk about the complete absence of sound waves.

Short video review of an axial type device

Review of axial fan VENTS VKF 4E 350

Radial. The main purpose of devices of this type is to eliminate noise at large industrial facilities and enterprises. For domestic premises they are used only in exceptional cases. A separate device is installed under each ventilation duct. Fans create a minimal sound background, but are characterized by their huge sizes (but if you wish, you can find a small unit), which complicates their installation in residential buildings and apartments.

Short video review of the radial type device

Review of Vents VKMts 100 fan

Invoices. Some of the most popular options. They are widely used in apartments. The device is mounted at the outlet of the ventilation duct, which greatly simplifies the installation process.

Short video review of the overhead type device

Electrolux EAFM-150 fans for the bathroom and toilet of the Smart Home. A short review.

There are also specialized solutions on sale, but they are not so relevant for the average home owner, and are often niche. However, this one definitely deserves attention. Specific models differ nominally from each other, according to some additional features.



What parameters and functions of the fan should you pay attention to?

Before purchasing a hood device, you must carefully study it specifications, take into account a number of important parameters.

1. 1. Performance . Optimal value determined by a simple formula: the volume of the room is multiplied by the air exchange rate. The last parameter for 3 people corresponds to 6, for a toilet - 10, for a bathroom - 6.
1. 2. Noise level produced during operation. gold standard modern devices– 25 dB. Sound-absorbing material can be placed behind the base of the housing, which will reduce the final value by a few more decibels.
2. 3. Protection of internal components from dust and moisture . This parameter is relevant primarily for. Obviously, moisture or grease in the device casing can cause a short circuit. Initially, it is necessary to give preference to models protected from water.
3. 4. Additional functions. The fan can operate in both standard and automatic mode. Some models provide activation of the unit immediately when the light is turned on. Solutions with a built-in timer, as well as a constant ventilation mode, have proven themselves to be excellent.

Advice! When choosing a quiet fan, you should give preference to units with indicators 15% higher than the required, calculated ones.

Models automatic devices can be equipped with an integrated humidity sensor, which is extremely convenient. The cost of axial products is higher than standard ones, but at the same time, the operating efficiency of such devices is unrivaled. Experts advise using devices with protection class IP34.

Choosing a fan for a bathroom in an apartment

Before starting installation work, you should make sure that the ventilation in the room is working properly. We have already written about this earlier. The next step is to choose the most suitable location for installing the fan. Experts recommend installing an exhaust propeller under the ceiling, since according to the laws of physics, hot air masses rise upward.

Advice! When choosing a device, it is also necessary to take into account the installation location, since not all models can be equally successfully placed at an angle, horizontally, or in an existing ventilation hole.

• any installation work it is more efficient to carry out renovations in the apartment in parallel;
• the wiring is hidden in a separate box;
• For a toilet, it is more advisable to combine a light switch and a fan;
• Vibrations can be leveled using a plastic pipe fixed with cement, sealant or foam;
• For toilets, fans placed near the ceiling directly above the toilet are suitable;
• You must carefully study the instructions that come with each device.

Procedure:

1. We insert the fan into the hole in the wall, and if the hole is much larger than the size of the air duct, then we will need polyurethane foam to seal voids around the duct.

2. If you need to replace the fan for any reason, getting it out after fixing it with foam is quite problematic, therefore, it is recommended to purchase and secure a piece of plastic pipe that matches the size of the air duct. And then insert the fan itself into the fixed and plastered plastic pipe. Thus, if necessary, the fan can be easily removed.

Don't forget to bring out the wiring to connect the device.

3. If, after you inserted the fan into the pipe, it dangles, then you can put a couple of rubber bands on it to seal it. With their help, the device will not only fit more tightly, but vibrations will also be reduced. With this method, you can avoid fastening with self-tapping screws, that is, you do not have to drill into the wall. But, if you are still not satisfied this option, then you can resort to fastening with self-tapping screws.

Review of some fan manufacturers

The most popular manufacturing companies producing silent duct installations include:

• Maico- one of the best representatives of German climate control technology. Initially, the company's employees set themselves the main goal - to create equipment that is easy to operate and of impeccable quality. Today, the product range includes more than 1,500 products.
• Soler&Palau- a manufacturer from Spain, currently occupying a leading position in the world market. Specializes in the production of low-noise ventilation solutions. Every year more and more are used innovative solutions. Any equipment from this company boasts impeccable technical characteristics.

The model deserves special attention Soler & Palau SILENT-100 DESIGN 3C. This device Available in several shades. The fan power is 8 W, with an average performance of 95 cubic meters. During operation, the maximum noise level does not exceed 26 dB.




To ensure effective ventilation in a room, it is very important to purchase a silent device. Its parameters must correspond to the needs, and its dimensions must correspond to the air duct. Thanks to this, it is possible to create an optimal microclimate inside the home.

Modern ventilation equipment can provide a healthy microclimate in any room. But this is often achieved at the expense of living comfort, since the noise associated with work causes, at a minimum, discomfort and irritability, and even chronic fatigue.

Channels will help you get out of the situation silent fans for hood. We will tell you how to correctly select an extremely quiet device designed for installation in an exhaust duct or a hole drilled in a wall. We'll show you how to understand the assortment, taking into account the characteristics and features of the work.

Silent duct fans on the market are traditionally divided into different categories, subspecies. But a healthy microclimate largely depends on performance characteristics. One of which, noiselessness, is even included in the name, that is, the buyer always needs to make a choice by determining a number of parameters.

The main ones are:

• noiselessness;
• performance.

If you like silence, then you need to start your search with the first characteristic, since it is this that has a significant impact on the comfort of your stay.

Device noise criterion

According to sanitary standards SN 2.2.4/2.1.8.562-96, in residential premises and a number of others, the noise level should not exceed a moderate 30 dB during the daytime and 20 dB at night. Which are comparable to a quiet whisper and in many situations will be quite appropriate for kitchens, bathrooms and other rooms.

Each duct fan on which the complex is made is silent special works. These include isolating structural elements from each other, for example, the engine from the body, as well as optimizing the aerodynamics of the blades, the channel through which contaminated air masses move

But you still need to remember that often the sound produced by these fans at 30-35 dB, even from a distance of several meters, will irritate users. This is especially true for situations where there is a bedroom or children's room next to a toilet or bathroom equipped with ventilation equipment.

As a result, you should know that truly silent, and without any compromises or marketing tricks, are considered models that have such performance characteristic does not exceed 25 dB. In this case, the sound of the fan running is comparable to a very quiet whisper.

Since the good is always the enemy of the best, when purchasing you need to remember that models that fall into the category of market leaders in terms of noiselessness emit no more than 20-22 dB.

And although the advantage over conventional low-noise models may seem insignificant, it may well become decisive after several years of operation. Those. when the performance characteristics of the device decrease, the bearings begin to wear out, the air channels become clogged with dust, and the anti-noise gaskets wear out.

All silent units of the presented type are suitable for use anywhere in the channel, which makes them universal and effective in any conditions

A number of complex solutions from engineers can provide a comfortable sound of operating ventilation equipment.

These include the following:

• use of high-precision bearings- such high-quality and balanced products eliminate beating, as a result of which there will be no vibration, which, when resonating, can significantly enhance the sound;
• high technology blades– one of the reasons for noise is the aerodynamic component, so developers, wanting to make the sound comfortable, carefully select the number of blades, optimal angles tilt, as well as during manufacturing, precise balancing of the impeller elements is carried out;
• use of technological buildings – quality material manufacturing (metal, plastic) eliminates vibration individual parts and components, aerodynamic noise of moving air;
• using vibration damping pads– quiet operation is also achieved by using special types rubber as gaskets to prevent contact between the housing itself and the attachment points of the electric motor to it.

Steel gaskets important element structures, they isolate the fan housing from the air duct and wall.

Bearings, blades and special housings and gaskets - all this reduces vibration, turbulence of air flows and their resonance to insignificant values.

Today it is no longer uncommon to decorate ventilation shafts with modern soundproofing materials. Reduces noise and reliable fastening electric motor to the housing. Themselves power plants are common and used on all types of fans.

Fan Performance Indicators

This characteristic is considered one of the most important, as it is interconnected with noise. It is clear that the higher the performance, the louder the electric motor and accompanying sounds sound.

As a result, you should not thoughtlessly buy for the kitchen or toilet according to the principle “you can’t spoil the porridge with butter”, as this can result in a decrease in the comfort of living and financial losses.

But avoid negative consequences not difficult. That is, the optimal power can be calculated, knowing that such an indicator must correspond to the derivative of the volume of the room and the air exchange rate.

For example, the volume of a shower room is 5 m³, and the recommended air exchange rate, according to SNiP, is 7-9. And to calculate productivity, you just need to multiply cubic meters by any multiple number. The result will be 35-45 m³/hour.

Being the most important characteristic of all kinds of duct fans, performance must be calculated correctly, since an attempt to achieve silence due to lack of power will lead to the need to buy a new unit. And excess power leads to excessive energy consumption, drafts and increased operating volume

Different ones perform a number of important options. Therefore, so that during operation you do not have problems with the device, you should pay attention to a number of characteristics when purchasing.

Which, in any situation, include:

• design safety;
• functionality;
• geometric dimensions;
• price.

Although all of the listed features are traditionally in the shadow of the main performance characteristics (performance, noise), they cannot be called secondary. Since each of them significantly affects the characteristics of ventilation equipment.

The importance of safe design

Since duct-type fans are designed for ventilation in all kinds of rooms, they often have to work in difficult conditions. Which create increased humidity in the bathroom, kitchen, toilet, the presence of fat particles in food preparation areas and increased dust in other rooms.

All of the above has a significant impact on the performance and durability of the unit. And most importantly, it affects the safety of living. Since particles of moisture and fat can always lead to a short circuit and other negative consequences.

Each one used should be, at a minimum, splash-proof, and even better, moisture-resistant. An effective measure One way to take care of your health is to purchase a unit that operates on low voltage, which is considered to be 24 V, but its power will not be sufficient in all cases.

An important advantage The advantage of any duct fan is that it can ventilate air in several rooms at once, regardless of its location. And everything you need for efficient work This correct installation and sufficient power

And most practical solution would be to purchase a fan with a protection class of at least IP34. Because as a result, the user will protect himself and his loved ones from all sorts of unpleasant incidents.

The importance of equipment functionality

Modern duct fans intended for or in the kitchen are quite technologically advanced and the buyer has the right to choose a device with the most suitable operating mode, which can be:

• standard;
• auto;
• autonomous.

In the first case, it is connected to the same electricity switch as the lighting of the room in which it is installed. As a result, both lamps and ventilation equipment are switched on simultaneously.

The shutdown procedure occurs in the reverse order, that is, after shutdown, the ventilation and lighting of the room stops.

The method described above is quite convenient and effective for use in, but is already considered outdated. The reason is that short ventilation cycles are not able to successfully cope with high humidity, for example, in the bathroom.

The purpose of all kinds of fans of this type is identical, that is, being in the duct, they must remove air masses outside the premises, but they cope with this task in different ways. And it all depends on the level of functionality of the products

Some species can work autonomously, determining the level of pollution on their own. Less technologically advanced fans operate based on programs embedded in their timers, and the simplest products are ventilated in the interval between switching on/off, which is carried out by the user.

This feature does not allow one to effectively cope with the replacement of air masses with fresh ones or leads to excessive energy consumption, and significant ones at that. The automatic ventilation option implies that the fan has a timer, which allows you to set the ventilation period taking into account the conditions in a particular room.

As a result, the procedure looks like this:

1. The user, entering the bathroom or any other room with a fan, turns it on by pressing the switch button.
2. The ventilation device removes contaminated air masses, even after a person leaves the room.
3. Stopping occurs automatically after a user-specified period of time has elapsed.

The advantage of this type of equipment is the ability to select optimal mode for all cases. At the same time, user participation in the work is minimal.

The most modern are duct fans capable of performing air exchange in autonomous mode. What the presence of sensors (for example, humidity) allows you to do. The signal from which leads to the fan itself being turned on/off.

Although all duct fans are hidden from view, this is not a reason to skimp on the quality of materials or anything else. Since, in many respects, noiselessness, durability, and efficiency depend on this

The advantage of the latter method is its greatest efficiency. That is, the air is always clean, and user participation is not required; it is also important that there is no excessive consumption of electricity.

Shape, size and cost

Today, fans with different housing shapes are available for sale.

Which are:

• round;
• rectangular;
• square.

But you should know that mainly products belonging to the first type are used for household purposes.

Rectangular and square analogs are most often classified as productive industrial devices, so the owner of a house, apartment, or office is unlikely to have to deal with them. The only exceptions will be cases when vertical ventilation tube in the form of a separate box.

The main geometric parameter of household duct fans is the mounting size. For example, this characteristic is always indicated on the case and in its technical documentation, since it is quite capable of affecting performance.

In addition, the indicated dimensions are standard values, which makes it easier to select a fan.

The cost of the models also depends on the features. For example, fans equipped with a metal casing, with the same capabilities, are several times more expensive than their counterparts with plastic casings, although this does not guarantee the opportunity to get much more benefits

Therefore, you should know that for household purposes, devices marked 100, 125 or 150 mm will be optimal. For ventilation in non-standardly large residential premises, restaurants, offices, options that indicate 160 mm or 200 mm are suitable. Large size products are classified as industrial.

Since the performance, functionality of fans, quality of materials and the amount of work required to ensure noiselessness are radically different, their prices are also significantly different.

As a result, you will have to pay a very reasonable amount for an inexpensive option. But for a model capable of operating autonomously, that is, equipped with a humidity sensor, a controller and capable of operating reliably silently for many years, you need to pay many times more.

For comparison: for that kind of money you can buy a pretty decent smartphone. However, the most affordable fans are not the best option. After all, they are not designed for a high level of safety or durability.

Types of duct fans

Today at points of sale you can find fans of several different types.

These include:

• axial, less often called axial;
• radial;
• centrifugal.

Each type has its own advantages and disadvantages, so you should know them.

Group #1 – axial fans

A characteristic feature of this variety is the direction of air flows along the axis of the electric motor, on which the impeller is located, which is responsible for the movement of air masses.

Any axial duct unit is the simplest type of duct fans. Nevertheless, they are quite effective and economical. In addition, among such equipment there are quite a lot of modern technologically advanced and safe models that can provide a sufficient level of living comfort

Main advantages axial fans for all kinds of hoods are:

• low productivity required to move air masses;
• economical electric motor;
• simple design.

The listed features make the units belonging to the presented type the most silent without any additional measures. This allows us to rank them among the most affordable, and therefore in demand for any household needs.

The main disadvantage is considered to be low performance, which is still quite sufficient for solving various local problems.

Group #2 – radial fans

Such devices are more technologically advanced than the axial devices described above. This is evidenced by the fact that the air flows do not move directly along the axis, but thanks to the special shapes of the impeller blades, they are mixed, compressed and directed towards the housing.

In this case, a vacuum effect is created behind the trailing edges. This leads to rapid absorption of external air currents.

Radial units are more efficient than their axial counterparts. When choosing them, you should remember that there are 2 subtypes of such fans and the quietest are considered to be products with forward-inclined blades, and they are also significantly more economical than their counterparts with backward-inclined blades

Thus, the radial type of fan intended for exhaust comes in two types:

• with shoulder blades tilted forward;
• with shoulder blades tilted back.

The first type is optimal for silent operation; moreover, it is more economical, by an impressive 20%. But if important parameter is performance, then it is better to purchase fans whose blades are tilted back.

An important feature of each radial fan For any type of hood, compactness is considered. This advantage is especially valuable when the installation space is difficult to access or limited.

Group #3 – centrifugal fans

This is the most modern, quietest and most efficient type of duct fans. Their operating principle is similar to their radial counterparts. That is, closer to the body it is created high blood pressure, and in the center there is a rarefied space, which leads to more efficient absorption of external air masses.

Centrifugal fans are the least known type of fan. Nevertheless, such products are among the most technologically advanced, productive and silent. The only downside is that they are too powerful for small bathrooms, toilets and even kitchens in ordinary apartments and even many private houses

Features of the design and operating principle make it the quietest. In addition, they can be installed directly in the ventilation shaft of the apartment, which eliminates negative impact on the aesthetic properties of the room.

And most importantly, this helps to increase the power of units of this type and reduce the impact of moisture and dust on them, which extends their service life.

Regardless of the type of duct fan, its performance and functionality, it is recommended to clean it from dirt every 1-3 years. It is advisable to carry out the same operation with bearings, which will extend the service life and also increase safety

A significant disadvantage of any centrifugal fan is its high performance, as a result of which they can only be used in rooms of 15 m² or more.

Conclusions and useful video on the topic

This video provides an opportunity to familiarize yourself with what a duct fan is and understand the principle of its operation:

Among modern duct fans it is quite possible to find a silent model required power, characterized by durability and safety, and in various price categories. But at the same time, you must have a certain amount of knowledge or you will not be able to get the expected result.

Would you like to tell us about how you chose a silent fan for installation in the exhaust duct? Share what was the main selection criterion for you personally. Please leave comments in the block below, ask questions and post questions on the topic of the article in the block below.

For exhaust hood, ventilation is installed in apartment buildings or private buildings. And although it does its job, I would like it to quickly remove moisture from the bathroom or bad smell from the bathroom. What about steam or the smell of burnt meat in the kitchen? You can install a fan on the exhaust grille, but even quiet devices make noise, which is first annoying and then even leads to headaches. The solution will be silent duct fans for exhaust hoods. Today we will look at their main technical specifications, and also figure out how they are mounted.

Read in the article:

Where are silent duct fans used for exhaust hoods?

Such ventilation devices are used not only to provide exhaust from the kitchen or bathroom. They are used in industrial workshops, in rooms with high dust levels, and in emergency smoke removal systems. Industrial exhaust fans are larger in power and larger in size. But today we will talk about household air supply and exhaust devices, mounted on individual rooms or on the entire ventilation system of a private house.

Duct fans for hoods: types, features, differences

There are three types of exhaust fans, differing in design:

1. Axial– the engine is located in the center of the cylinder. It rotates the impeller, which moves air currents along the axis. Such devices are easy to install (often installed on kitchen or bathroom hoods) and provide good air exchange - about 100 m³/h. Among the disadvantages, we note the presence of noise of approximately 30÷50 dB.
2. Radial or centrifugal exhaust fan– these types of devices are similar. An impeller is installed in the housing, the blades of which are located not across, but along the channel. When the wheel rotates, a centrifugal force is created, sucking or forcing air masses into the room. The power and performance of such devices is higher. They are capable of pumping up to 15 m³/min. If an axial fan is installed in only one room, then a powerful centrifugal or radial fan will provide exhaust air for the entire private house.

Helpful information! If the distance from the ventilation device to the exhaust opening is more than two meters, an axial fan will not be able to provide air exchange. Only centrifugal or radial.

How an exhaust duct fan works: schematic diagram

The silent duct fan consists of four main parts:

• an impeller that moves air masses;
• an electric motor that rotates it;
• a housing in which the impeller and electric motor are placed;
• bearings – provide soft, silent rotation.

High-quality bearings are the key to long-term operation of the ventilation device

In addition to the bearings, quietness is ensured by precise balancing at the factory. Manufacturer tests finished goods. If the noise exceeds the level, the device is rejected and not supplied to the retail chain.

Expert opinion

HVAC design engineer (heating, ventilation and air conditioning) ASP North-West LLC

Ask a specialist

“The designation “silent” is not entirely true. It is not possible to reduce the sound of a running engine to 0 dB. Such devices emit noise up to 25 dB, inaudible to the human ear.”

The electric motors of such devices do not differ from conventional ones. Quiet operation is achieved by reliable fixation. If you purchase a counterfeit (counterfeit), the fastening will become loose over time, which will lead to increased vibration and, as a result, increased noise.

Bearing lubrication also plays a role. If cheap solid oil is used, it will quickly wear out. This will first lead to increased noise, and then to wear of the balls and seats.

Technical characteristics of ventilation devices

When choosing a device for exhaust into a ventilation duct, you should pay attention to some parameters.

Characteristic	Description
Noise level value	During operation, the devices make noise. Here this parameter should not exceed 25 dB. If the body is covered sound-absorbing material, the noise level will decrease.
Electrical protection class (IP)	The higher this indicator (the protection class is indicated on the packaging and in the technical documentation), the more aggressive the environment in which the device can be used.
Amount of pumped air (performance)	The parameter depends on the number of people living or the purpose of the room. To accurately calculate the total volume of the room(s), we multiply by the multiplicity factor: · for ordinary rooms with three residents – 3; · for bathrooms – 6; · for bathrooms – 10.
Availability of additional functions	The device can be turned on not only in manual mode. These could be light, motion or humidity sensors.

Helpful information! Despite the role played by the cost of equipment, it is worth paying more attention to the technical characteristics. Even a small amount spent on an unsuitable device is money thrown away in the literal sense of the word.

Geometric parameters and dimensions of duct fans for exhaust hoods

The shape of such devices is round, rectangular or square. The choice will depend on the shape of the ventilation duct. After all, it is clear that it is problematic to install a duct fan for a round air duct in a square one, and it is completely impossible to install a square device in a pipe.

The sizes of such devices are different. Some common ones include:

• duct fans 200 mm;
• exhaust fans 100 mm;
• duct fans 125 mm.

These dimensions are not accidental - they coincide with the dimensions of the ventilation shafts apartment buildings and boxes produced in Russia.

Criteria for choosing silent duct fans for exhaust hoods

When choosing such equipment, you should pay attention to the quality of the product. The edges should be smooth, without burrs or sagging. Don’t be shy to ask the seller about the quality of the product and whether there have been any returns. You need to carefully study the technical documentation and the certificate of conformity.

Helpful advice! Require filling out the warranty card in front of your eyes. The store is obliged to put its seal on it in front of you. If it is already marked, it is possible that this ventilation device was sold, but was returned for some reason.

Silent fans for extractor hoods in the bathroom, kitchen or in all rooms must be checked when purchasing. Ask your consultant to plug the device into the network in front of you. This way you can be sure that the product is working properly. After all, having subsequently given it to warranty repair You may have to wait a long time for a return, which means the installation of the ventilation system will stop.

Pay attention to the body of the device. It should not have chips, cracks, scratches or dents. The packaging must not be damaged.

Equipping silent duct fans for exhaust hoods: basic and additional functions

The main function of the ventilation device is to remove moisture, unpleasant odor or the flow of fresh air into the room. For this reason, it is worth paying attention to power and performance. These parameters determine how well the device will perform the job.

But in addition to the main functions, you should not lose sight of the additional ones. Housewives are faced with the fact that odors from neighbors enter the apartment from the ventilation hole. This is not possible when the fan is on, but what if it is off? For such cases, an exhaust fan with check valve, which blocks the flow of air, opening only for exhaust.

A convenient kitchen exhaust fan is equipped with a humidity and temperature sensor that turns on only when necessary, which saves energy. The reverse function will also be useful. Such silent hoods for the kitchen, bathroom or for all rooms can be switched to fresh air supply mode.

Related article:

Why is it needed, types of systems and instructions for them correct installation, the nuances of ventilation of various rooms and recommendations from professionals - about all this in our material.

Rules for installing a silent exhaust fan

Duct ventilation devices are mounted in the air duct gap. For installation, a part of the ventilation duct to fit the size of the device is removed. The fan is disassembled, the diffusers located on both sides are removed from it, which are attached with clamps or rubber couplings to the air duct. After this, a fan is mounted into the remaining gap.

The connection of a silent duct fan to a 220 V network varies depending on the number of speeds. If there are 2 contacts in the terminal box, then everything is clear - zero and phase (one speed). But three contacts indicate a two-speed device with two impellers. In this case, the “N” terminal goes neutral wire, and contacts “L1” and “L2” – separation by speed. You need to decide what speed of rotation of the blades is needed. "L1" is maximum speed, and “L2” is the minimum, which is 60% of “L1”.

Maintenance of silent duct fans during operation

If you properly and promptly maintain your equipment, it will last much longer. More often than other components, the ventilation grille becomes clogged. When it becomes clogged, it becomes difficult for the engine to rotate the blades; under load, it heats up and the winding burns out. The blades also require periodic cleaning. Sometimes, in order to clean the impeller, the fan has to be dismantled. However, it is better to spend some time and effort on cleaning than to subsequently purchase a new one. ventilation device to replace the burnt one.

The air duct itself also requires cleaning - grease settles on the walls, to which dust sticks. It is not always possible to clean such dirt with a vacuum cleaner. Joints are especially vulnerable ventilation ducts. If cleaning is not done on time, lumps of dust and grease come off the walls and fall into the fan blades. This leads to jamming and failure of the device.

Is it possible to repair a duct fan yourself?

If the electric motor fails, you will not be able to rewind the stator or rotor winding yourself. Having determined this malfunction with a multimeter, the home technician can only rewrite the device data and go to an electrical goods store in the hope of finding suitable spare parts. There is another option - online stores where you can find everything. You will have to wait some time until they send you what you need, but this purchase will cost less. The same applies to worn-out bearings or a broken impeller.

Wiring faults can be fixed quickly, but require basic electrical installation skills.

Very important! If a faulty wiring is detected, you should remove the voltage by turning off the input circuit breaker, and only then begin repairs. Remember defeat electric shock life threatening!

If there is the slightest doubt that a home technician will be able to fix the problem on his own, it is better to seek help from professionals. After all, no self-respecting master will undertake the repair of equipment that has been disassembled by another person before him.

Brief overview of manufacturers, models and prices

There are many models on Russian shelves. various manufacturers. In order not to burden the reader with unnecessary information, we will consider only a few of them, mentioning the technical characteristics and cost, as of January 2018.

Make and model	Device type	Productivity, m3/h	Power, W	Cost, rub
	Axial	100	7,5	2300
	Axial	250/360	25/33	10500
	Centrifugal	240	24	6800
	Centrifugal	580	50	10200
	Centrifugal	790/1030	100/120	18200

Summarize

Proper organization of the ventilation system in an apartment or private house is good. But the natural option does not always cope with the task. Having arranged forced ventilation With the use of a silent hood or air intake, you can be sure that dampness or unpleasant odors will not linger in the living space.

We hope that the information presented in today's article was useful to the reader. We will be happy to answer questions (if they appeared during the reading process) in the comments below. Write, ask, share your experience if you have one. It may be useful for less experienced DIYers.

And finally, we offer a short video for viewing that may be useful to you:

TD series duct fans designed specifically to work with long-distance channels and under conditions of increased requirements for the noise level in the room where they are installed. This type of fans has the advantages of centrifugal fans (high outlet pressure) and the advantages of axial fans (high air flow, low noise level and overall dimensions).

TD series fans are designed for installation in ventilation ducts. Fastening elements are supplied with the fan. Both vertical and horizontal installation. Fans of the TD series (designated T) have a built-in shutdown delay timer from 1 to 30 minutes. They have one maximum speed.
TD series fans models 160 - 2000 have two speeds and, if necessary, can be connected via the REGUL-2 speed switch (specially designed for TD series fans). Fan models TD 4000/355 and TD 6000/400 have one speed. The rotation speed can be changed by connecting an RMB type transformer to the fan.
Together with TD series fans it is possible to use an external air humidity control sensor HIG-2 or an air quality control sensor SQA.
The fan casings are made of high-strength plastic, with the exception of models 800,1000,1300 and 2000, which have a steel casing coated with epoxy enamel.
The fan impeller blades are cast from durable ABS plastic, with the exception of models 1000, 1300 and 2000, which are made of galvanized steel.
Electric motor:
models 160, 250, 350 have:
single-phase asynchronous electric motor with short-circuited cast aluminum rotor;
protection against overheating (fuse);
self-lubricating permanent bearings;
protection class IP 44.
Models 500, 1000, 1300, 2000, 4000 and 6000 have:
single-phase asynchronous electric motor with permanent capacitor and external rotor made of cast aluminum;
overheat protection (built-in, self-resetting thermal fuse);
sealed ball bearing assembly;
protection class IP 44.

S&P presents a new product in the fan market: a unique duct fan TD-SILENT. designed specifically for ventilation systems with the most stringent noise level requirements. Soler&Palau engineers solved the problem of the new fan to achieve unprecedentedly low noise levels and surpass the TD-MIXVENT series fans. Thanks to the use of a fundamentally new fan layout and high-quality materials, the noise level of TD-SILENT is lower than that of its closest analogues by 12 dB(A) . Working wheel with diagonal blades and an electric motor located in a special casing. To significantly reduce noise levels, the designers created a double casing with a layer of special noise-absorbing material. The internal, perforated casing transmits sound waves, directing them at a certain angle to a layer of noise-absorbing material, in which sound waves are damped almost 100%. The transfer of vibrations from the fan housing to the air duct is prevented by special quick-release clamps with rubber seals. TD-SILENT fans are made of high quality plastic. The lineup TD-SILENT fans are available in seven standard sizes, with diameters from 100 to 315 and air flow from 180 to 1770 m3/h

TD SILENT TD SILENT TD SILENT

Specifications:

Model (max. flow / diameter)	Rotation frequency (rpm)	Consumption powerful, W	Current, A	Max. consumables air, m3/h	Max. slave. temp., C	Sound level pressure, dB(A)	Attach. diameter, mm	Weight, kg
Single-phase models (1ph., 220V, 50Hz)
TD-160/100N Silent	2500	20	0,16	180	40	24	100	1,4
TD-250/100	2200	24	0,11	240	40	31	100	2,0
TD-350/125	2250	30	0,13	360	40	33	125	2,0
TD-500/150	2500	50	0,22	580	60	33	150	2,7
TD-500/160	2500	50	0,22	580	60	33	160	2,7
TD-800/200N	2780	70	0,30	880	60	37	200	4,9
TD-800/200	2500	120	0,50	1100	60	39	200	4,9
TD-1000/250	2800	125	0,50	1010	60	40	250	9,4
TD-1300/250	2520	180	0,80	1300	60	43	250	9,4
TD-2000/315	2700	255	1,20	2000	60	47	315	14,0
TD-4000/355	1400	345	1,53	3800	40	44	355	19,0
TD-6000/400	1400	665	2,97	5500	40	44	400	26,0

Duct fan installation

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S&P presents a new product on the fan market: the unique TD-SILENT duct fan. designed specifically for ventilation systems with the most stringent noise level requirements. Soler&Palau engineers solved the problem of the new fan to achieve unprecedentedly low noise levels and surpass the TD-MIXVENT series fans. Thanks to the use of a fundamentally new fan layout and high-quality materials, the noise level of TD-SILENT is lower than that of its closest analogues by 12 dB(A) . An impeller with diagonal blades and an electric motor located in a special casing. To significantly reduce noise levels, the designers created a double casing with a layer of special noise-absorbing material. The internal, perforated casing transmits sound waves, directing them at a certain angle to a layer of noise-absorbing material, in which sound waves are damped almost 100%. The transfer of vibrations from the fan housing to the air duct is prevented by special quick-release clamps with rubber seals. TD-SILENT fans are made of high quality plastic. The TD-SILENT fan range is available in seven sizes, with diameters from 100 to 315 and air flow from 180 to 1770 m3/h

The quietest low profile duct fans in the world. When developing duct fans TD SILENT Was used Newest technologies in the field of computer modeling of products and plastics production. The material used in the production of the fan helps dampen vibration. Internal housing of duct fans TD SILENT, a special design, reflects sound waves at a certain angle, which are then captured by a layer of noise-absorbing material. It allows you to dampen noise during the entire operating time of the fan. Sound waves generated inside the fan TD SILENT, pass through the internal perforated casing and are damped by a layer of noise-absorbing material.

Included: Passport in Russian, warranty card