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Anonymous users2024-01-24The working principle of the fast net total heat recovery fresh air fan: when the equipment is running, when the indoor exhaust air and fresh air flow through the heat exchanger core in a positive cross mode, due to the temperature difference and vapor partial pressure difference between the air flow on both sides of the air flow separator, the heat and mass transfer phenomenon is presented when the two air flows through the separator, which causes the heat exchange process. In summer, the fresh air obtains cooling capacity from the exhaust air of the air conditioner, and the temperature is reduced and dried by the air conditioner, so that the moisture content of the fresh air is reduced; In winter, the fresh air gets heat from the exhaust air of the air-conditioned room, and the temperature rises.
The fresh air unit does not control the temperature, only the air conditioning unit controls the temperature.
Combined with the ceiling, do not affect the height and shape design, and the pipe should be as few elbows as possible.
The possibility of electrostatic precipitator is greater, but it is not excluded that it is an external physical purification box.
The difference between the ceiling air conditioning unit and the fresh air unit is that the air conditioning unit has three ports (air supply, return air, fresh air) or two ports (supply air, return air), and the fresh air unit has two ports (air supply and fresh air), or in other words, according to whether there is return air to distinguish the ceiling air conditioning unit and the fresh air unit. >>>More
CMH and m h are both flow units, and the order of magnitude is the same, but CMH mostly represents wind flow, and m h mostly represents water flow.