What are the common problems in the cooling system of fresh air units

Fresh air unit is a kind of air conditioning equipment that produces fresh air. The principle is to remove ash, dehumidify, cooling and other treatment, the outdoor fresh air will be extracted, according to the centrifugal fan (structure: shell, spindle, impeller) into the room, when entering the interior space design, the original indoor gas to replace. The key point of relative humidity control of fresh air exchanger is the setting position of humidity sensor or the selection of control parameters, which is related to the humidity source and control mode. Do you know what the common problems are with the cooling system software of fresh air units?

Fresh air cooling system of the open system of units, according to the closed cooling tower circulating water cooling is adequate and the gas contact, fresh air refrigeration unit and gas inlet water will be a lot of dust particles, such as system software, accumulate in the closed cooling tower, fresh air, and line produces sludge, reduce the circulating water flow (unit: cubic meters per second), the heat exchanger. Fresh air units generally do not bear the heat and humidity load of the air conditioning area, its main function is to supply air. Of course, the ideal air supply temperature and humidity are constant, so the fresh air unit generally controls the air supply temperature and humidity. After the system software is delivered and put into use, during the installation process, residues such as penetration of fresh air unit, nails, soil and oil stains will also accumulate in the system software. Iron needles, iron needles and other hard chemicals can stick to the surface of thermal equipment and damage heat conduction.