The fresh air machine adopts the fresh air convection technology. By automatically supplying and exhaust air, it enables the indoor air to circulate and replace the indoor air. The fresh air machine is equipped with a multi-functional purification system to ensure that the air entering the room is clean and healthy.

When installing, do not add three-way fittings to the pipes and connect them in series at will. This is because a normal fresh air system will be equipped with distribution boxes during installation, from which pipes are connected to each room. At the same time, there will be air volume adjustment valves on the distribution boxes to ensure that the air volume delivered to each room matches the room area and the number of residents, and the air volume is constant.

2. During the installation period, do not randomly drill holes in the beams. If pipes run under the beams, it will inevitably affect the appearance. However, if they pass through the beams, it will impact the load-bearing structure of the house and turn the new house into a dangerous one.

3. When installing, it is necessary to avoid the ceiling affecting the floor height. The normal fresh air system uses 160mm pipes, but such thick pipes are installed on the roof and then beautified by the ceiling, which will inevitably affect the floor height.

4. Install the fresh air machine. The air intake of the fresh air machine should not be close to the source of odors. Because if the air intake is close to the source of odors, the fresh air exchange will have an unpleasant smell. Therefore, when installing, make sure the air intake is at the upper end and away from the source of odors.

Selection suggestions for fresh air machines

The fresh air machine is equipped with a multi-functional purification system to ensure that the air entering the room is clean and healthy. Fresh air machines are mainly divided into two types: exhaust fresh air machines and supply fresh air machines. They can be installed in most indoor environments, are easy to install and comfortable to use. The fresh air machine is a healthy companion for home life.

When determining the required fresh air volume for a room, a comprehensive consideration should be given to the size of the room and the number of people inside. Based on the recommended data in the above table, calculate the fresh air quantity values respectively according to "the required fresh air volume per person" and "the fresh air change rate of the room", and take the larger value of the two as the basis for equipment selection.

2. For special industries such as hospitals, laboratories, and industrial workshops, the required fresh air volume should be determined in accordance with the relevant norms and regulations of the document industry.

The ventilation principle of the fresh air system

The fresh air system is an independent air treatment system composed of a supply air system and an exhaust air system. Its principle is to seal the room, then supply air to the room through the supply air system, and at the same time extract the indoor air through the exhaust air system. In short, it is a machine that continuously ventilates and exchanges air in the room.

The fresh air system works by using dedicated equipment to supply fresh air into a closed room on one side and then expelling it to the outside from the other side. This creates a "fresh air flow field" inside the room, thereby meeting the need for fresh air exchange. The implementation plan is: to use high-pressure and high-flow fans, and rely on mechanical force to supply air into the room from one side, and then use specially designed exhaust fans to expel air to the outside from the other side, forcing the formation of a fresh air flow field within the system. While supplying air, the air entering the room is filtered, disinfected, sterilized, oxygenated and preheated.

The three major types of fresh air machines

A fresh air machine is an effective air purification device that can create a circulation of indoor air. On the one hand, it expels the stale air inside the room to the outside. On the other hand, it takes fresh air from outside, undergoes sterilization, disinfection, filtration and other measures, and then inputs it back into the room, ensuring that the air in the room is always fresh and clean at all times.

Self-balancing type: It refers to the situation where the air volume at each end of the ventilator in each room, namely the supply air outlet and the exhaust air outlet, can automatically adjust the cross-sectional size of the air outlet under different air pressures, thereby maintaining the air volume at the designed level.

Wet-controlled type: It refers to the installation of a humidity detector at the end air outlet of the ventilator, which can sense the indoor humidity level and thereby control the cross-sectional size of the air outlet to achieve the purpose of regulating the air volume.

Bidirectional flow heat recovery type: It refers to the situation where the ventilator, in addition to having a supply fan and an exhaust fan, also has a heat recovery device. We usually call it a total heat exchanger. It can achieve a balance between the indoor energy and the outdoor energy.