EHA2 Aereco - Hygro-controlled inlet device

Foggy windows and heavy air in the apartment are a rather unpleasant problem faced by owners of plastic windows. These inconveniences arise from the main advantage of such windows - tightness. It turns out that plastic windows are not able to maintain natural ventilation in the room; they cannot breathe, like windows made of natural wood. As a result, the temperature begins to rise, humidity and carbon dioxide accumulate, and stuffiness occurs. The lack of fresh air affects performance, drowsiness occurs, and allergies are possible.

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Condensation as a result of ventilation

Frequently airing rooms will not solve the problem of condensation on windows, since the benefits of replacing regular windows with plastic ones are lost. The result is heat loss, low sound insulation, penetration of unpleasant street odors, and a layer of dust on the window sills and floor.

Some manufacturers offer to install a slot microventilator as an additional accessory to the window. It is installed on the tilt-and-turn sashes of a plastic window. By turning the handle 45 degrees, the sash opens 3-5 mm. Passive air exchange is created in the room, and a draft occurs. The problem with heat conservation and tightness remains. The effective supply of the required fresh air occurs provided that the internal ventilation is working well and there must be access to the ventilation ducts.

How to make your living space cozy and comfortable to live in?

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Installation nuances

The Aereco window ventilation valve can be installed either on a removed sash or on an installed window - it is not necessary to dismantle the structure. However, if possible, it is better to remove the sash: it will be more convenient to work.

In this case, you should install the valve either in warm weather, or prepare some way to block the window opening.

The process itself consists of sawing holes in the frame and fusing the sash (the part that covers the frame) . You should work extremely carefully - the seal on the sash must remain intact when creating holes.

For convenience, you can remove the window fittings (corner gear and scissors) from the top of the sash.

List of tools

1. Drill with a drill bit with a diameter of 10 mm.
2. Jigsaw.
3. Narrow, fine-grained file (optional).
4. Silicone sealant.
5. Self-tapping screws (4 for the strip and 2 for the “visor”).
6. Template for holes (not necessary, but working with it is both more convenient and more accurate).

For greater accuracy, you can use two drills: the first is 5 mm in diameter, with which a “test” guide hole will be drilled. The second is the main one, which will make a hole of the required diameter.

You can make a template for the grooves yourself from hardboard or plywood (in extreme cases, cardboard will do), according to the specified dimensions.

Stages of work (video)

Operating principle of the Aereco valve

In 1983, in Paris, Aereco created a unique moisture-sensitive ventilation system - an automatic valve designed to regulate the flow of outside air depending on the degree of humidity inside the room.

Thanks to the Aereko window supply valve, there is no need to constantly ventilate the room using micro-ventilation, while maintaining heat and noise-proof properties. In addition, when there is a large crowd of people, the sensor actively works, and if no one is in the room, the valves close. Thus, these valves provide as much cold and dry air as needed.

Aereco window valve operation diagram

When preparing food, the carbon dioxide we exhale increases the humidity in the room, which is an excellent condition for pathogenic microflora.

A constant supply of fresh air creates comfortable living conditions in the room and prevents respiratory diseases and oxygen starvation.

Also, effective regulation of air humidity prevents the formation of mold on window slopes and walls and protects against condensation.

The Aereko window valve itself is a small lining. It has a beautiful appearance, does not take up much space and fits perfectly into any interior. Depending on the type, the Aereko ventilation valve has several colors: white, grey, beech and teak.

Color solutions for the EMM humidity-controlled air supply device

The inlet valve is easy to maintain. It is enough to remove dust several times a year using a vacuum cleaner with a soft attachment.

The Aereko valve is quite easy to install. Installation takes 45-60 minutes. A supply air curtain is mounted in the window sash above the glass or in the wall, and a canopy is placed outside to control the air flow with a grille that protects from dust and insects.

Installation of the Aereko flow valve occurs immediately at the factory during the manufacture of windows, as well as on already installed windows without dismantling them and replacing double-glazed windows.

The operation of the ventilation valve sensor is based on the principle of the physical law of thermal expansion of solid materials: expansion when humidity increases, contraction when humidity decreases.

The valve consists of 8 or 16 polyamide moisture-sensitive plates. They, reacting to a given degree of humidity, influence the mechanism for opening and closing the damper without the use of power.

As the amount of humid air in the room increases, the moisture-sensitive tape in the Aereco supply valve lengthens. The damper opens, letting in dry air from the street and displacing carbon dioxide through the kitchen or bathroom exhaust vent, which should not be blocked. The higher the humidity level inside the room, the more the dampers open.

The Aereko ventilation valve is not exposed to air flow from the street, so it accurately shows the degree of humidity in the room.

When the air humidity decreases, the valve closes automatically. During strong winds or bad weather, you can manually switch valve modes.

An exhaust ventilation system equipped with a similar barrier creates a mode for automatically maintaining high-quality air in the apartment.

Aereco air supply devices are produced in several versions.

The EMM valve is a classic device. It is ideal for small spaces. Has a thin body. Air from the street enters the room vertically or obliquely, depending on the position of the window.

The ENA2 valve has a stylish design and has a higher degree of protection from external noise. The air flow of this valve is directed to the ceiling, thanks to which the incoming air is heated, which gives maximum comfort to the residents of the apartment. In the photo below, the device is equipped with an acoustic spacer on top.

Sometimes, for some reason, it is not possible to install an Aereko supply valve in a window, so an alternative device has been created - the EHT system, which is attached to the wall. It has a beautiful appearance and is easily installed in the wall using a special cutter. The valve provides effective protection against external noise.

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Models and specifications

At the moment, the Aereco range of air handling units includes two models: EMM and EHA2. These are window valves, and in addition to them, the range includes another option - wall valves. A model called Aereco EHT can be used either in addition to windows or separately.

Each series (EHA2 and EMM) includes 3 variations, which differ in characteristics and the presence/absence of some options. In addition to the air inlets themselves as standard, Aereco also produces several types of additional accessories that are purchased separately.

Aereco EHA2

Aereco EHA2 is a model that replaced the outdated EHA series, which is now discontinued. It does not have any design delights: an oblong body with upward-pointing holes, made of plastic. Available in the following colours: white, grey, oak or teak.

Aereco on a wooden window

The Aereco EHA2 valve series includes 3 models:

1. EHA2 5-35. Marked by the manufacturer: EAR201, 283, 286 or 308.
2. EHA2 11-35. Marked by the manufacturer: EAR202, 290, 292 or 327.
3. EHA2 17-35. Marked by the manufacturer: EAR203, 295, 297 or 328.

The numbers at the end indicate the minimum and maximum productivity (in m³/h) with a difference in air pressure outdoors and indoors of 10 Pa.

Here are the overall dimensions common to all 3 models:

Instructions for installing the Aereko supply valve

As noted above, installation of the Aereko valve is possible on already installed plastic windows without dismantling them.

1. mark the installation location of the ventilation valve, paying attention to the installation locations of other window fittings, which should not interfere with installation;

2. screw the supply valve strip onto the self-tapping screws for plastic windows;

3. mark technological grooves on the frame/sash rebate of the sizes shown in the figure below;

4. remove the strip and cut holes using a drill and jigsaw, first in the sash and then in the frame;

5. re-installation of the strip;

6. Attach the aereco window valve to the latches.

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Description of design

Structurally, the ventilation valve consists of 3 parts:

1. Mounting strip.
2. External "visor".
3. Valve body.

Externally, the device looks like a narrow oblong plastic lining, which is mounted in the upper part of the window frame and sash, in which a hole is cut.

The color of the body can be different - from white to beech. Both from the inside (from the room) and from the outside (from the street), the device on the window is practically invisible and does not catch the eye.

Aereco EMM valve disassembled

Aereco valve installation service in Moscow, its price

More than 10 years ago, a representative office of Aereko opened in Moscow. During this time, a large number of residents of the country got rid of many problems that arose due to poor ventilation in the room.

The Aereko supply valve has many positive reviews. It meets all sanitary standards and can be installed not only on plastic windows, but also on wooden and aluminum profiles.

Many manufacturing companies are official partners and offer additional services for installing Aereko flow valves with an installation guarantee. They have the necessary certificates and experience in installing valves.

The Aereko valve, compared to its analogues, is more expensive in price; the cost with installation in Moscow starts from 3,000 rubles. Mostly, manufacturing companies provide free consultation on the selection of ventilation equipment.

Thus, plastic windows can breathe and create a favorable microclimate in the living room. You just need to choose the right windows and equipment.

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Solution

If you turn the handle to an angle of 45°, the sash opens a few millimeters, this allows you to create passive air exchange and a draft. However, the problem with tightness and heat conservation remains. Fresh air will be effectively brought into the room if the internal ventilation works well and the rooms have access to ventilation ducts. The solution to this problem is moisture-sensitive ventilation systems, which are called automatic valves, which will be discussed below.

Design features

On sale you can find windows in which the valves described are built into them at the factory, so the consumer does not have to deal with these manipulations on his own. The operation of the sensor is based on the principle of the physical law of expansion of materials.

When humidity increases, solid structures expand, while when humidity decreases, they contract. The composition contains moisture-sensitive polyamide plates, the number of which in the system can vary from 8 to 16. They react to a given humidity temperature, influencing the mechanism for closing or opening the damper, and no power supply is required.

Silent fans Aereco

In addition to passive ventilation means, such as supply and exhaust valves, our company offers silent Aereco exhaust fans for installation to increase draft in standard ventilation pipes of apartments and houses.

The low pressure mechanical fan is switched on automatically via a temperature sensor or pressure switch.

The illustration shows three models of Aereco fans, which provide different maximum air flow rates in rooms.

These fans have low noise characteristics (from 29 to 34 dB) and low power consumption.

Hygroregulation - the operating principle of Aereco

In 1984, the Aereco company developed devices that provide hygroregulated air flow (hygro..., from the Greek hygros - wet). The operating principle of these devices is that the air flow is modulated depending on the level of relative humidity in the room. Aereco supply and exhaust devices have one or more dampers that regulate the air flow, which close, limiting the air flow, or open, increasing the air flow. These dampers are controlled by polyamide strips depending on the humidity level, which act as a humidity sensor and drive a hygro-controlled system.

The Aereco air supply unit has a V8 converter (polyamide strips) installed, which controls the flow of supply air.

As humidity increases, the polyamide fabric strips lengthen, causing the dampers to open, and when humidity decreases, they narrow, closing the dampers. The higher the humidity level inside the room, the more the dampers open. This mechanism, called a V8 transducer, is isolated from the airflow direction and only measures the humidity level in the room. In addition, thanks to the thermal adjustment system, the process of opening the dampers occurs regardless of external climatic conditions.

Aereco fits perfectly into the design of the premises

The design of Aereko supply units goes well with plastic frames, and the exhaust units fit perfectly into the interior of a modern apartment or country house.

This is what the Aereko supply ventilation device looks like on a plastic window frame and the Aereko exhaust ventilation device in the interior of the room.

In cases where installation of supply ventilation devices in a window is not possible, installation of a wall-mounted, humidity-controlled supply device may be proposed as an alternative solution. The device is mounted on a hole specially cut in the wall at the top of the room. An external canopy is installed on the outside to protect against rain penetration. Additionally, an anti-insect filter grid is installed in the channel of the device, which is easy to clean.

The illustration shows the appearance of the Aereko wall-mounted air supply unit in the interior and its structure.

What else you need to know about the operating principle

“Aereko” is a valve that has a moisture-sensitive tape inside the room. When the level of humid air in the room increases, the tape lengthens, the damper opens, and dry air from the street enters, displacing carbon dioxide, it exits through the kitchen exhaust vent, which should not be blocked during operation. As the level of humidity inside the room increases, the dampers open more and more.

“Aereko” is a valve that has a unique design; it is not exposed to air flow from the outside, so the humidity level in the room is determined as accurately as possible. When air humidity decreases, the valve closes automatically, and during bad weather or strong wind, the modes can be switched independently.

Ventilation through sealed windows without noise

As you understand, such a ventilation system is simply necessary in modern apartments equipped with airtight windows, sealing residents in damp and stuffy rooms. Aereco air supply devices allow you to constantly ventilate rooms without opening windows and avoiding noise.

The hygro-regulated air supply device is mounted on a specially cut slot in the window profile in the upper part of the window. An external canopy is installed on the outside of the window to protect against rain and insects entering the room, as well as to protect the internal structure of the window. The supply unit can be equipped with effective acoustic visors that reduce street noise from 37 to 52 dB.

Aereko supply ventilation cross-section