Why is forced ventilation in the house?
Fresh air supply provides fresh air to the building, at the same time it cleans it from dust and heats it. A characteristic feature of this entire system is the air injection into the building, while the displaced air is removed through special boxes and outlets. The advantage of such a device is considered to be the ability to conduct thorough air purification, the humidity and temperature of which can be adjusted.
Conventional ventilation systems are air ducts, which are mainly located in bathrooms and in the kitchen. Through them the polluted air leaves naturally, and the slots in the windows and doors function as a pump, supplying fresh air from the street. This uncomplicated scheme is called natural ventilation.
But such ventilation has certain drawbacks - its ability to act depends on wind speed, temperature and other factors. And with the advent of plastic windows, it has become ineffective.
Supply air characteristics
To improve the air exchange, a special ventilation device was used. Such devices have a different configuration. The simplest method is to install the supply fan into the hole in the wall or in the window. The drawback of this method is the arrival of very cold air in winter.
The supply air must be at least +16 ° C.Otherwise, the temperature drop can contribute to people's disease or furniture damage and wallpaper peeling. Proceeding from this, a normal system of such ventilation should include a multi-level system of protection against overheating and air heaters. In addition, there must be an air filter so that a lot of dust does not get in with the air, and good noise insulation.
The supply air system has three modes of operation:
- winter mode, air heating using a water heater;
- summer mode, cooling it with a water cooler;
- standby mode, there is a control from the freezing of the water heater and air temperature when the mode is off.
Modes of supply ventilation
The summer mode of supply ventilation can be heated or not. Heating occurs when the temperature of fresh air is lower by 5 degrees than it was set. Such a device operates in the ventilation mode, but when the temperature is lowered, relative to the limit temperature, the heating is turned on to the set temperature. After the desired temperature is reached, the adjustment ends after 30 minutes.
The summer mode without air heating is presented as follows. The system also functions in the ventilation mode. If the temperature becomes less than +5 ºС, then the device goes into standby mode.
By the way, if the operating mode of the system does not correspond to the time of year, that is, the air temperature in the street, the device will beep.
Winter mode has a heating function. Supply air with heating will warm outside air to the set temperature. Set it can be in the range of +15 ºС to +30 ºС.If this mode is turned on at a temperature greater than +5 ° C, then the system beeps and switches to summer mode.
In addition, there is also a mode of operation with high humidity, for example, during rain. The supply air is warmed up to the set temperature from +15 ºС to +30 ºС, and the fan speed remains minimal and does not change.
One of the popular devices is a split-system with forced ventilation. This is an excellent replacement for air conditioning and ventilation, so it successfully solves the problem of airing the premises.
In addition, it is better to use filters for any ventilation with any device. They purify the air that enters the building. They also carry out medium and fine cleaning, their use guarantees a longer ventilation life and no need to repair it.
