Modern supply ventilation with heating was developed to create a comfortable microclimate inside residential, office and industrial premises. The presence of such a system makes it possible to adjust the temperature and the number of air flows, taking into account the needs, regulate the modes and select them for specific conditions. Before installing ventilation, it will be useful to familiarize yourself with its types and their features, study in detail the principle of operation and find out the main details.
Definition of supply type ventilation with heating
The difference between supply ventilation and standard systems is that it draws in air masses from the outside. As a result, the atmosphere in the room not only warms up and cools down, but is also additionally saturated with oxygen. The installation of such a ventilation system is needed in rooms where purified and heated air is constantly required. It is installed in apartments, private houses and in production. Due to the special design, the used and heated air flows inside it do not mix with each other. The heating valve is more often installed in the walls if there are plastic windows in the house, since they inhibit the natural ventilation processes. The list of elements of such a system includes:
- an air intake grille, which plays the role of a protective barrier for debris and is also decorative;
- a heated inlet valve to block cold air in winter and hot air in summer;
- filters for purifying heated air;
- Electric heating elements and a water heater.
A standard supply fan with heating in the system is supplemented with a recuperator, a silencer and diffusers. The ventilation structure depends on the type and method of installation of the entire system as a whole.
Varieties of supply ventilation
Supply ventilation with heated air for a house or apartment is divided into two types: central and compact. Each species has its own characteristics and differences.
Central
Fans with heating, carried out using an electric or water heater, are responsible for the temperature of the streams. The first option works from the mains, the second is built into the central heating system. Some devices are supplemented with recuperators that exchange heat between the air coming from the street and the heated air currents that go outside. The central system is considered the most functional, but it requires more space for placement, installation must be carried out by specialists, which entails significant costs.
Compact
A small-sized system or breather is a small device for issuing fresh air flows into a room, which is installed on the wall. Inside it is a ceramic heating element that heats the incoming air streams and is complemented by a climate control option that sets the desired temperature. The device helps to purify the air using a filtration system consisting of three levels.It keeps dirt, dust, soot, pollen, germs and allergens out, making the compact system the ideal choice for an eco-friendly microclimate. Breather installation takes no more than an hour, while not requiring much effort and serious financial costs.
Advantages and disadvantages of the system
A supply ventilation system for a home or industrial type has its pros and cons, which must be taken into account before installation. The list of its advantages includes:
- the ability to circulate air regardless of weather conditions and indoor climate in the room;
- saving costs for gas or electric heating in winter when installing a supply and exhaust system, supplemented by recuperation;
- the presence of cleaning filters;
- no need for constant monitoring due to automatic operation.
An air heater in any ventilation system has its drawbacks, which usually include an increased noise level, impressive dimensions of the system and the need to allocate additional space for it, as well as create a project diagram.
Principle of operation
The ventilation system operates according to a standard and simple principle. At the initial stage, the air from the outside passes through the air intake, complemented by a plastic grill, which delays the ingress of dirt, insects and lint, but does not interfere with the flow of air. After that, the air masses go through a special through channel or air duct. The walls of such a channel are additionally insulated from the inside of the mine with the help of noise and heat-insulating plastic pipes, treating each joint with an airtight compound to protect the walls from freezing.
At the joints of the air duct with the base of the device, an automatic damper is mounted. It closes on its own after turning off the appliance to prevent cold air from entering the room to be heated. It will also be closed if the incoming air flow deviates from the norm - its temperature should not fall below -40 degrees. As it passes through the heater, the air temperature rises to the required level using the climate control function. The owner can specify the required temperature value for air heating, and it will remain at this level.
Due to the optimal design, the system, in which the exhaust air is heated, does not provoke drafts even in the cold season. The temperature will always be maintained at the desired level without user control.
Air heating control methods
The air heating system can be controlled manually or automatically within any type of supply ventilation. Most modern devices are equipped with automation, but some of them are controlled manually according to the standard principle.
Manual mode
With manual control on any heating device, a set of buttons is provided with which you can adjust the temperature, turn the device on and off, and adjust the program settings for specific parameters. This control is intended for those who plan to use only the basic options of the ventilation system without having to connect a working application to it.
Auto mode
If desired, the device can be connected to a smart climate system called MagicAir and run in automatic heating and control mode. A smartphone is used as a control center, on which the application is installed.It can be used to measure microclimate parameters, including humidity and air temperature, as well as the content of carbon dioxide in it.
All the necessary settings are set and changed directly from the device through the application. It helps to normalize the content of carbon dioxide and other substances in the room atmosphere, and also optimizes the operation of the ventilation system. The user only needs to master the interface and select the ideal parameters for their supply ventilation that correspond to a specific room. After that, the base station with the application will independently transmit commands to the device, switch its speeds, control heating, turn it on and off as needed.
It is easier to control the supply air system, which has a built-in air heater, remotely. The application helps to save time on manual operation and reduce energy consumption costs.
Valves and equipment for supply ventilation
The supply ventilation system with heated air includes several elements, the quality of its functioning as a whole depends on them:
- air filter;
- shut-off valve;
- heating part;
- fan;
- muffler of noise.
The most important parts are considered to be the air shut-off valve, filtration and heating elements. Due to the presence of the valve, air will enter the system only when it is needed.
The filter element helps to completely clean the air masses entering the system and prevent dust and dirt particles from entering the room atmosphere. The presence of a fan allows air to enter the room. If this element is inactive, the sampling will not be carried out.
In addition to the main parts in the system for heating the supply and main air, there is a ventilation panel, which is also called a cabinet. It houses the automation and parts for controlling the actuators.
The ventilation system cannot function without an air duct, which can be made of plastic, metal or perforated fabric. When choosing it, special attention is paid to the cross-sectional area, full compliance with the sanitary standards of a particular room and compliance with fire safety requirements.
Additionally, during installation, fittings of the system are used: elements for branching, joining, bends and connecting other parts to air ducts. To fix the part, you will need a perforated tape, the quality of which must be given special attention; the ventilation ducts are also secured with special clamps. To ensure good air exchange in ventilation ducts, filters, air heaters, silencers, dampers and valves, duct coolers are installed.
