Many homeowners associate ventilation systems with exhaust grilles and vertical shafts running through the roof. It’s true that these elements remove exhaust air, but without an influx from outside, the hood works ineffectively. For complete air exchange, supply ventilation is needed to compensate for the outgoing air masses. The problem is solved in several ways, discussed below.
Options for organizing inflow
We will explain the importance of fresh air ventilation with an example. Imagine a sealed container of water being pumped out by a pump. Since the vacated volume is not filled with air, the pressure in the tank drops. At a certain point, the pump will not have enough power to overcome the vacuum and pump out further - the impeller will begin to mix the water in place.
Without normal inflow, a more powerful hood creates a reverse draft effect (overturning) in a ventilation duct of a smaller cross-sectionKey moment. When indoor air exchange, a similar principle applies - natural or forced exhaust will not be able to effectively remove polluted air if replacement with an influx is not provided.
After installing sealed plastic windows and filling the supply gap previously located under the window sill, the entry of air masses from outside is excluded. Consequences: a fan or ventilation duct of a larger cross-section (usually in the kitchen) upsets the draft in a smaller shaft (toilet), from where an unpleasant odor enters the apartment. The living room, bedroom and other rooms are left without ventilation at all.
There are several ways to make complete supply and exhaust ventilation of a private home:
- folk method - trimming window seals;
- buy an air conditioner with the function of supplying outside air;
- install an adjustable air valve into the plastic window;
- make a hole in the wall and install a local air supply device.
Advice. The performance of a natural home hood can be checked as follows: remove the ventilation grilles in the kitchen and bathroom, attach 2-3 strips of paper over the first opening, seal the second one tightly with A4 sheet and tape. If the strips are drawn into the channel, it means that air is entering the apartment - the draft is working.
Diagram of a one-story house with possible options for air supply devices Let's consider the pros and cons of each of the listed methods. The task is to offer you the correct and relatively inexpensive way to organize the influx.
The simplest free method
The essence of the method is to use existing drainage holes in the window profile, designed to drain condensate outside. Two hidden holes where the water goes are located on the inside of the frame, the outlets are on the outside of the profile and are closed with plugs, as shown in the photo.
One condition: the method will not work if there is poor traction in the vertical channel. Start by checking the hood and...
The idea of home craftsmen allows you to quickly organize supply ventilation with your own hands without financial costs:
The operation of this ventilation is based on the following scheme: under the influence of the draft of the ventilation duct, outside air is sucked through the drainage hole, passes inside the profile and enters the gap between the sash and the frame. Having risen to the upper part, the air flow enters the room through the opening in the seal.
In winter, heating of the cold inflow begins in the window structure and ends at the outlet, when the air mixes with the ascending convective flow coming from. A supply gap is made in a similar way in a plastic balcony door, but with additional trimming of the outer rubber, as shown in the video:
The advantage of this option is zero cost and a real opportunity to ventilate the apartment with the window closed. There are many more disadvantages:
- the air flow cannot be adjusted; strong wind will blow through the gap;
- in summer, unfriendly insects, such as wasps, can settle in open drainage;
- during the warm period, when natural draft decreases due to a small temperature difference, small holes will not allow the required amount of air to pass through.
The last disadvantage: removing part of the rubber seal is only possible on opening sashes. Drilling into blind windows is not an option. Therefore, the method cannot be called correct and cannot be recommended to all homeowners.
Split systems with ventilation function
In addition to heating/cooling modes, household air conditioners from a number of manufacturers are capable of supplying outside air to the room and even operating as an exhaust hood (alternately with the supply air). Why this option is convenient:
- renewal of the air environment in the room occurs forcibly, regardless of the traction force in the shaft;
- the air drawn in by the fan is processed - filtered and heated or cooled;
- flow intensity is adjustable;
- the volume of inflow does not depend on gusts of wind and other weather conditions.
Operating diagram of the indoor unit of the air conditioner Reference. The air mixture is sucked in by a separate fan located in the internal block of the split system. An additional pipe is laid through the outer wall - an air duct up to 1 m long.
The main problem with the implementation of such air exchange is the high price of the equipment. Buy an air conditioner for each room for 500-600 USD. That is, for the sake of fresh ventilation - it is inappropriate; there are cheaper options. But if you plan to install a split system for cooling, you should think about choosing a unit with air supply and recirculation.
We formed the negative aspects of using an air conditioner as an air supply unit based on reviews from online store customers and forum visitors:
- The inflow is carried out only when the unit is turned on; the rest of the time the outer channel is covered with a damper.
- A separate fan, responsible for supplying fresh air mixture, is constantly noisy.
- Due to rapid contamination, you will have to clean the filters more often.
- On some models, ventilation and air conditioning modes are incompatible. Air supply and heating are switched on separately.
Note. It will help you to correctly install a split system in a private house or apartment.
Installing a supply valve in a window
The so-called window ventilator is an oblong plastic cover equipped with an adjustable flap. There are 2 types of valves:
- Mounted on fixed windows. A through inlet slot is milled into the profile, a protective canopy is screwed on the outside, and a cover with a flow regulator is screwed on the inside.
- Products for opening sashes. They are installed on the inside of the frame, part of the sealing rubber is replaced with a special material. There is no need to mill the window.
Valve operating diagrams: for opening (left) and closed valves (right) Reference. The valves allow you to set up work and are designed for all types of translucent structures - PVC, aluminum and wood. Popular brands are Vents, Air-Box and Aereco, price – up to 10 USD. e.
It is advisable to use supply window devices in rooms with good exhaust, otherwise the air supply will be scanty. The declared performance of the valves is about 30 m³/h, which is enough for one person, but not enough for normal ventilation of living rooms.
For the boiler room and bathroom, where the standards provide for more intense air exchange, you will need 3-4 similar products; it is easier to embed the flow grille into the door. Another nuance: the real performance of devices is very different from the declared one.
Calculating the inflow is easy - find out the dimensions of the inlet slot and determine the amount of air passing through it, using the instructions. The result will be less than the promised 30 m³/h (let’s say: no more than 25 cubic meters at a speed of 1 m/s). For 3 family members you will need 4 valves in each room, absurd.
How to install a supply valve on a leaf:
It is more difficult to install a valve in a solid frame - you need to carefully cut a narrow opening in the profile. If you don’t want to contact craftsmen and pay money, make the gap yourself - apply precise markings and drill holes. The visor and inner cover are installed without problems. Brief instructions for installing the product on the sash are presented in the video:
In general, window ventilators are suitable for a small apartment. But in the rooms of a country cottage with high ceilings, the declared performance is not enough. The second negative point: often the PVC window frame is half covered by the upper slope, leaving no room for the valve. Then another technical solution called...
Wall ventilation device
A passive ventilation valve mounted inside a wall consists of the following elements:
- supply pipe with a diameter of 60-150 mm (size depends on the model and performance of the device);
- the outer end of the pipe is covered with a mosquito net and a ventilation grille;
- an adjustment valve is built in at the other end;
- From the side of the room, the pipe is connected to the housing, where an air filter (cleaning class G3) and a heat-insulating gasket are placed.
Note. To prevent condensation from forming inside the channel, a layer of insulation is laid between the wall and the pipe.
As in the previous case, the inflow through the valve is ensured by the vacuum created by exhaust shafts or fans. The products are capable of transmitting 35-60 m³/h of air into the room, depending on the user settings. When you turn on a local hood with a mechanical drive, for example, a kitchen one, the inflow flow will also increase to 70-90 m³/h.
In devices of various brands, there are 2 types of performance regulators - petal and diaphragm, the second will be cheaper. If necessary, any damper can be completely closed. The price of products starts from 15 USD. That is, popular manufacturers - “Vents”, “Domovent”, Helios and others.
How to install the valve:
- Determine the location of the ventilation element. The recommendation is as follows: it is better to place low-capacity devices with a Ø60 mm pipe between the window sill and the heating radiator. Place valves with a diameter of more than 10 cm next to the window opening at a height of 2 m from the floor.
- Make a through hole in the wall using a hammer drill and a set of drills of suitable length. In a frame or wooden house, use core drills. If the room borders on a balcony, it is better to drill from the outside.
- Cut the pipe to the thickness of the fence, wrap it with Penofol insulation and insert it tightly into the hole. Fill the remaining cracks with foam.
- From the inside, attach the valve body to the wall, connecting it to the pipe. Place a ventilation grill outside.
Advice. Make the hole as round as possible, guided by the outer diameter of the channel wrapped in insulation. Vents products are equipped with telescopic sliding pipes; there is no need to cut them. For installation details, watch the video:
The scope of application of passive inflow devices is much wider than ventilation in an apartment or country cottage. Valves can provide air exchange in other ancillary buildings - bathhouse, boiler room, etc.
There are only two disadvantages: lack of heating of cold air and manual adjustment during operation. In summer the damper opens fully, in winter it is set to minimum. Advantages:
- the valve is suitable for most ordinary users in terms of price and performance;
- incoming air is cleaned by a filter;
- the device does not freeze or become covered with condensation, frost appears on the head in frost below minus 35 °C;
- does not consume electricity, operating costs are minimal.
The heads of the ventilation elements look quite aesthetically pleasing Breezers and recuperators
The problem with supplying cold air, typical for wall dampers, has been solved in breathers - local air supply units equipped with a fan and an electric heating element. Advantages of the unit:
- three stages of influent purification - in a coarse, fine and sorption (carbon) filter;
- heating the air to the set temperature;
- automatic and manual control of fan performance;
- air quality monitoring – measuring humidity, temperature and carbon dioxide concentration;
- partial recirculation - return of room air after filtration - allows you to save energy;
- remote control from a remote control or smartphone.
Let us note 3 disadvantages of the unit: operating costs for electricity, high cost of the breather and its repair in case of failure. There is no point in describing the installation technology - the household appliance is built into the wall in the same way as a valve.
Breather device - local air supply unit Reference. With the help of breathers it is convenient and comfortable to ventilate any living space. But it is difficult to call the units generally available - the price of products from the famous Tion brand starts from 300 USD. e.
A wall recuperator, a supply and exhaust unit capable of removing heat from the exhaust air, will cost even more. There are 3 types of installations, differing in cost and principle of operation:
- Reversible (sellers call them regenerative). The operating algorithm is simple: first, the exhaust air heats the ceramic heat accumulator, then the only fan changes the flow direction and the element releases the accumulated heat to the influent. The cycle is repeated at intervals of about 1 minute.
- Rotary. There are 2 fans constantly running here - supply and exhaust. Both streams pass through a rotating rotary heat exchanger, exchanging heat.
- Cross flow. The exhaust air transfers heat to the supply air through the thin walls of an aluminum or copper heat exchanger. The fans direct the flow towards each other, as shown in the diagram.
The most effective recovery option is in a cross heat exchanger, which allows you to return about 70% of the thermal energy back into the room. The efficiency of the rotary unit is slightly less - about 5%. The actual heat transfer rates in reversible units are unknown, and sellers, as usual, overestimate the efficiency of these recuperators.
Conclusion
So, full supply ventilation in apartments and private houses can be organized using valves and forced ventilation units. Recuperators and breathers are quite effective, but they are expensive, and window valves supply little air. A compromise solution is a natural ventilation supply unit mounted in the apartment wall.
- Ensure an air exchange rate of at least 1-1.5 (i.e., the system should renew all the air in the apartment in a maximum of 1 hour or less);
- Achieve a comfortable supply air temperature;
- Achieve uniform distribution of air throughout all rooms;
- Do not create drafts or unnecessary noise when working;
- Reduce operating costs through the use of modern solutions and equipment;
Equipment for apartment ventilation in our catalog:
Room air handling units (ventilators)
Ballu Air Master
They allow you to quickly and inexpensively create supply ventilation in a separate room without the need to carry out large-scale installation work. Only a hole in the wall is required. Inconvenience - they take up space on the wall and are required in every room. Solutions from RUB 31,990.
External air supply unit
ventilation unit PVU-350
The main advantage of the installation is that it can be mounted outdoors (on the external wall of the building) or in an unheated room (balcony, loggia). Key Features:
- Small dimensions - can be easily placed under a window or next to it;
- The productivity of one installation is from 350 m 3 /h (PVU-450 - 440 m 3, PVU-600 - 570 m 3)
- Built-in silencer protects against installation noise and sounds from the street;
- Intelligent control system, weekly timer, remote control included;
- Multi-level air purification system;
- Reasonable price; Solutions from 107,900 rub.
ventilation supply and exhaust unit Electrolux
Electrolux ventilation units of the EPVS STAR series are excellent for solving most apartment ventilation problems; these units confidently occupy leading positions in sales volumes and have already been time-tested. Key features and benefits:
- Compact dimensions allow the installation to be placed in a very tiny room or under-ceiling space;
- The productivity of one installation is from 200 to 1300 m 3 /h (from 30 to 250 m 2 of service area);
- Availability of a highly efficient recuperator - free heating of supply air;
- Built-in automation and control system - no need to additionally buy a remote control and other automation elements;
- Soundproof housing;
- Possibility of installation in any plane: horizontally or vertically;
- Low price; Solutions from 112,900 rub.
Ventilation of large apartments from 200 m2
Solving such a problem requires a professional approach and should begin with calculations of system parameters and design. Finding the optimal solution is the task of Smart Climate engineers. Whether to use a ventilation unit or assemble a system from individual components, whether the system will be a supply or supply and exhaust system - such issues are considered at the design stage and depend on the goals of the ventilation system and technical conditions at the site.
Equipment in this category is designed to create healthy atmosphere parameters in residential premises. The article discusses in detail the supply ventilation in an apartment with filtration. Here there is information about simple and ultra-modern technical solutions, homemade products, and current market offers. This information is sufficient to implement the project at a reasonable cost without errors.
Read in the article:
Why is ventilation needed in an apartment?
The previous photo, after carefully studying the real situation, looks like a person's reasonable equipment in the near future. You shouldn't hope for changes for the better with the advent of the era of electric vehicles. Fossil fuels are still burned to produce energy. A huge amount of harmful emissions accompanies the production of batteries. The sources of problems can be listed further. But the most unpleasant thing is the lack of precise strategies at the state and planetary level. Nowadays, you have to take care of maintaining livable conditions yourself.
Modern construction methods have certain disadvantages. A completely reasonable goal, improving insulation parameters, is taken to the point of absurdity. Perfectly sealed windows and walls do not allow any fresh air to pass through. In economical warm rooms without regular ventilation, the composition of the atmosphere does not meet sanitary standards.
For your information! It should be noted that some artificial materials and dyes are capable of polluting the air with unpleasant odors and hazardous substances during operation.
The above facts explain the need to use specialized equipment for forced ventilation in an apartment. Below are the exact answers to the questions asked.
Supply ventilation - what is it?
Related article:
In this publication we will look at the advantages and disadvantages of ventilation systems and what they are needed for. Nuances of independent design of local and central ventilation, recommendations from specialists.
The method is simple and intuitive. But it only allows you to find out the situation during control operations. To eliminate errors, you should install specialized devices for air intake from the street. The exceptions include cracked wooden frames, holes in the glass and giant cracks. Indirectly, good ventilation of the premises confirms the absence of crumbs, which nimble sparrows manage to peck off before cleaning.
In such conditions, you will have to pay excessively high heating bills. It is much smarter and cheaper to make modern, high-quality repairs. But we can confidently say that forced ventilation in an apartment with plastic windows is useful in most cases.
We'll leave the technical details for further discussion. This figure shows a schematic diagram of a functional system:
- The blue arrow marks the inlet.
- Red - fresh air supply. Pay attention to interior partitions that can create obstacles.
- Green arrows indicate places where contaminants accumulate (bathroom, kitchen) and outlet channels.
Types of supply ventilation systems for apartments
The simplest designs
Such devices are installed at the order fulfillment stage. Manufacturers of window frames offer different options. Smooth adjustment and built-in filtration elements are used. But such solutions in supply ventilation are not universal. The devices are installed in a timely manner, taking into account the specific design features. It should be noted that the performance is low and there is no automatic adjustment.
Related article:
In the article we will consider in detail the types of structures, the principle of operation, how to choose a place for installation, how to properly install the device with your own hands, useful tips and recommendations from specialists.
This device is installed in the wall. There is a manual adjustment of the supply ventilation hole. The grille installed on the street side prevents the penetration of insects and large contaminants. The porous sponge retains small mechanical impurities. In some models, a special reed valve is installed to prevent air movement in the opposite direction.
There are modifications of supply ventilation with a bimetallic element. When the temperature changes, it activates the rod with the cap. This engineering solution allows you to change the size of the outlet hole automatically. Such designs did not become popular due to limited accuracy.
How does supply ventilation with air heating work?
It is reasonable to apply such solutions in domestic climatic conditions. The supply ventilation system must perform its functions all year round. Heating the incoming air prevents the room from overcooling and reduces the load on standard heating equipment.
Related article:
In the article we will consider in detail why a recuperator is needed, scope of application, advantages, types of system, the process of making a structure with your own hands and useful tips.
This special element is made of ceramic. It traps large mechanical particles. But the main function in this case is not filtration, but heat accumulation when the fan is turned on in the reverse direction. When air is forced into the room, heating occurs.
Complex air purification ventilation systems for apartments
The sets shown in the photo below are installed in suspended ceiling structures. Ventilation ducts, dampers, noise suppressors, filters and other equipment components are placed there.
The technical parameters of equipment in this category are selected taking into account real needs. Accurate engineering calculations will ensure good consumer characteristics and reasonable costs during operation. The supply ventilation unit supplies fresh air to the right places. The placement of output channels is organized in a similar way. With the help of sensors and automation, the maintenance of comfortable conditions in individual rooms is organized. Connection to a control system of the “Smart Home” category will ensure optimization of operation in combination with heating and air conditioning.
Below are the features of the individual components:
- The air intake performs the usual functions. It is equipped with a visor and tilted blinds to prevent raindrops from getting inside. Next, a large mesh is installed to prevent the penetration of insects.
- In the supply ventilation air duct channel, the walls are supplemented with insulation. This modernization protects the walls from freezing in winter.
- The air valve only opens inward. It closes when the unit is turned off. In this position, heat loss is prevented.
- The primary filter traps large particles.
- An electric heater is used in winter. For automatic adjustment, control using temperature sensors is used.
- An H11 class filter, as in this example of supply ventilation, traps the smallest dust particles, allergens, viruses and other microorganisms.
- Next, a complex adsorption-catalytic unit is installed. It does not allow vehicle exhaust gases, harmful emissions from industrial enterprises, or fumes from forest fires to enter the room.
- The fan provides the necessary speed of supply of purified air into the room.
- The remote control displays operating settings and instrument readings taking into account certain equipment.
- For control, a convenient remote control with an infrared communication channel is used (operates in a line of sight zone).
Expert opinion
HVAC design engineer (heating, ventilation and air conditioning) ASP North-West LLC
Ask a specialist“ Adsorption and HEPA filters for apartment air cannot be cleaned of contaminants. They are regularly replaced with new analogues, taking into account the operating conditions.”
Comparison of an air conditioner with forced ventilation for an apartment
It is difficult to create ducted supply and exhaust ventilation with your own hands. Such a system is expensive, and is not at all suitable for standard ceiling heights. Therefore, we will further consider more affordable options, taking into account the possibility of self-installation. When comparing such technical solutions with air conditioning, several important nuances should be noted:
- typical split systems process only indoor air, but do not provide ventilation;
- they do not prevent the penetration of unpleasant, harmful and dangerous contaminants;
- Even specially equipped air conditioners do not work at low temperatures outside.
To connect parts, install drainage pipes and connect to the power supply network, it is necessary to create special channels in the walls. Next, finishing is done to hide the defects. The listed works involve significant expenditures of time and money.
How to create functional fresh air ventilation in an apartment with your own hands: algorithm of actions, important nuances
For these works you need a fairly powerful hammer drill and drills of the appropriate diameter. Cover the floor with plastic film and use bags to collect garbage (as in the photo). If you plan to install a simple forced ventilation kit in an apartment, the hole is located above the heating radiator. When turned on, it will heat the incoming air.
They use additional devices that allow them to perform the necessary work quickly and accurately. You can make the markings yourself and install the supply ventilation components in the apartment using the manufacturer’s official instructions. Suitable locations are determined taking into account the placement of electrical outlets of the 220V power supply network.
Review of supply ventilation in an apartment with Tion filtration: a modern solution to the problem
To better understand the potential capabilities of this manufacturer’s equipment, let’s note the features of the S3 model with the most advanced equipment:
- Powerful fan with adjustable inflow 30−140 m³/hour.
- Built-in heating element (1.45 kW).
- Filters: HEPA G4 (washing, vacuum cleaning); HEPA H11 and catalytic adsorption (standard replacement mode - 1 time every 2 years and a year, respectively).
- Noise in different modes: 19−47 dB.
- IR remote control with built-in LCD display.
- Recirculation mode to save energy.
- Operating temperature range: -40°C to +50°C.
The manufacturer included MagicAir in the basic kit. This module controls temperature and humidity levels, carbon dioxide content. It ensures coordinated actions of the Tion supply ventilation and the room air conditioner. Bluetooth wireless communication channel is used to transmit commands and receive information. A specialized application can be installed on a smartphone or other mobile gadget.
What is a suitable air filter for an apartment: determining the criteria for the right choice
Before studying specific market offers, you need to establish the parameters of the necessary equipment. An accurate calculation of supply and exhaust ventilation for an apartment can be done using specialized programs that manufacturers, trade and service enterprises post on their websites. Complex calculators use additional data, taking into account the number of bathrooms and the type of hob.
For independent calculations, use the standard of 3 m³ of fresh air per hour for each square meter of area. It is used taking into account the constant presence of one person in a relatively small living space (up to 20 m²). They increase the productivity of supply ventilation in the presence of a fireplace.
| Premises/Equipment Features | Air exchange rate per hour/Inflow, m³/hour | Room operation mode, notes |
|---|---|---|
| Living room, bedroom, other rooms in the living area | 0,35/30 | Constant presence of one person |
| Kitchen/ Electric stove | −/60 | In maximum use mode, the inflow is increased to 180 m³/hour |
| Kitchen/ Gas stove | −/90 | Calculation for 4 burners. As in the previous paragraph, plan the possibility of increasing the productivity of supply ventilation |
| Toilets, bathroom/Separate rooms | −/25 | Maximum – up to 90 m³ |
| Combined bathroom | −/50 | Maximum – up to 120 m³ |
| Dressing room, pantry | 1/− | Adjusted taking into account the characteristics of the optimal storage mode |
Article
Many buildings that are currently being built, both industrial and residential, have very complex infrastructure and are designed with maximum emphasis on energy conservation. Therefore, it is impossible to do without installing such systems as general air ventilation systems, smoke protection systems and air conditioning systems. To ensure efficient and long service life of ventilation systems, it is necessary to properly design and install a general air ventilation system, a smoke protection system and an air conditioning system. Installation of such equipment of any type must be carried out in compliance with certain rules. And in terms of technical characteristics, it must correspond to the volume and type of premises in which it will be used (residential building, public, industrial).
The correct operation of ventilation systems is of great importance: compliance with the deadlines and rules for carrying out preventive inspections, scheduled maintenance, as well as the correct and high-quality adjustment of ventilation equipment.
For each ventilation system put into operation, a passport and operational log are drawn up. The passport is drawn up in two copies, one of which is stored at the enterprise, and the other in the technical supervision service. The passport contains all the technical characteristics of the system, information about the repair work carried out, and copies of the as-built drawings of the ventilation equipment are attached to it. In addition, the passport reflects a list of operating conditions for all components and parts of ventilation systems.
Routine inspections of ventilation systems are carried out according to the established schedule. During routine inspections:
- Defects are identified that are eliminated during routine repairs;
- The technical condition of ventilation systems is determined;
- Partial cleaning and lubrication of individual components and parts are carried out.
All data from a routine inspection of ventilation systems must be indicated in the operation log.
Also, during the work shift, the operating team on duty provides for scheduled overhaul maintenance of the ventilation systems. This service includes:
- Start-up, regulation and shutdown of ventilation equipment;
- Supervision of the operation of ventilation systems;
- Monitoring the compliance of air parameters and supply air temperature;
- Elimination of minor defects.
Commissioning of general air ventilation systems, smoke protection systems and air conditioning systems
The commissioning stage is a very important stage, because the quality of ventilation and air conditioning depends on the commissioning work.
During commissioning, the work of the installation team is visible, and the parameters specified in the project are checked and compared with the indicators specified in the project documentation. During the inspection, a complete check of the technical condition of the installed equipment, the distribution and uninterrupted operation of adjustment devices, the installation of control and diagnostic devices, and the identification of errors in the operation of the equipment are carried out. If deviations are detected that are within normal limits, then readjustment does not occur, and the object is prepared for delivery to the customer, with all documents completed.
All of our company’s foremen have specialized education, health and safety certificates, extensive work experience and have all the necessary documents and certificates.
At the commissioning stage, we measure air flow speed in air ducts, noise levels, test the quality of equipment installation, adjust engineering systems in accordance with project parameters, and certify.
Start-up testing and adjustment of ventilation and air conditioning systems must be carried out by a construction and installation or specialized commissioning organization.
Certification of ventilation systems
A technical document drawn up on the basis of checking the operating condition of ventilation systems and equipment, carried out using aerodynamic tests, is called ventilation system certification.
SP 73.13330.2012 “Internal sanitary systems of buildings”, updated version of SNIP 3.05.01-85 “Internal sanitary systems” regulate the form and content of the ventilation system passport.
Obtaining a ventilation system passport, in accordance with the requirements of the above document, is mandatory.
Upon completion of the installation of ventilation systems, the customer receives a ventilation system passport.
A passport must be obtained for each ventilation system.
The passport is indispensable for registering purchased equipment, for proper operation of such equipment, in order to achieve the necessary sanitary and hygienic air parameters.
Within the period established by law, this document is provided by the control and supervisory authority. Receipt of this document is indisputable evidence in resolving controversial issues with the relevant authorities.
Obtaining a ventilation system passport can be carried out as a separate type of work, consisting of a set of aerodynamic tests. The conduct of such events is regulated by the following regulations:
- SP 73.13330.2012;
- STO NOSTROY 2.24.2-2011;
- R NOSTROY 2.15.3-2011;
- GOST 12.3.018-79. “Ventilation systems. Methods of aerodynamic tests";
- GOST R 53300-2009;
- SP 4425-87."Sanitary and hygienic control of ventilation systems of industrial premises";
- SanPiN 2.1.3.2630-10.
The design solution for domestic supply ventilation does not include a humidification function. Air is supplied inside the room with the same humidity as outside. In a situation where there is high humidity in the room and it is dry outside, a ventilator will help to even out the climatic conditions. If the supplied air flow is too dry, we recommend using a humidifier.
Ventilator, air purifier, humidifier and air conditioner - what is the fundamental difference?
How often should the ventilator be turned on?
The device must operate around the clock - it doesn’t matter if there are people in the room or not. Human breathing is accompanied by the release of carbon dioxide - comfortable conditions for people in the room are formed by a constant flow of fresh air. Allergens, unpleasant odors, harmful substances - all this is released by furniture and pets even when there is no one in the room. The switched on ventilator will ensure fresh air no matter what time you return home. We recommend turning it off only if you plan to be away for a long time.
Is domestic supply ventilation relevant in a house with an insulated facade?
Definitely yes. But, the installation team must first be warned about this factor. This will allow specialists to install the device as competently as possible, correctly making a through hole for the air duct in the wall structure, including the facing tiles of the ventilation facade.
What approvals are needed before installing the ventilator?
There is no need to obtain any permits. Current building regulations state that the construction of holes with a diameter of less than 200 mm is not subject to approval by the competent authorities. From the street they are protected by a decorative grille and the presentable appearance of the facade does not suffer. The same cannot be said about the external unit of the air conditioner.
I have a ventilated facade: how to install domestic supply ventilation?
There are 2 ways to install the system, each of which has its own nuances and specifics. They can be briefly described as follows:
Option 1The hole is not made through, but only reaches the facing slab of the ventilation facade without perforating the heat-insulating layer. In this case, air is taken from the gap between the insulation and the final façade finishing. The gap size is from 40 to 100 mm.
Option #2Air intake is carried out directly from the street. In this case, a hole is drilled through all structural layers of the wall. That is, thermal insulation and external facade finishing made of tiles, for example, porcelain tiles, break through. Please note that if work needs to be done at height, then an industrial climber is hired to make a hole for the household supply ventilation air duct.
How loud is the supply ventilation?
The design of the device involves six operating speeds:
- 1st is characterized by a maximum sound pressure level of 19 dBA, which is significantly lower than the natural sound background of the environment in the range from 25 to 30 dBA;
- 2nd, 3rd and 4th speeds produce noise comparable to the operation of a household air conditioner;
- Speeds 5 and 6 are recommended for active ventilation of the room.
