There are significant differences in groups and air -conditioning units in terms of function, use, and processing methods.The following is a detailed comparison:
1. Main function:
Fresh air crew: It is mainly used to handle fresh air outdoor air, processing through dust removal, dehumidification (or humidification), cooling (or heating), etc., and then send it into the room to replace the original air indoors.The main function of the fresh air unit is to provide fresh air and adjust its temperature and humidity as needed.
Air -conditioning crew: It is used to treat indoor air, cool down through air cooling or water cooling, while controlling indoor temperature, humidity and air quality.The air -conditioning unit mainly undertakes the hot and wet load in the air -conditioning area, which plays a comprehensive treatment of air.
2. Processing object:
Fresh air crew: mainly to handle outdoor air, to ensure that it is sent to the room with fresh air that has been purified and adjusted.
Air -conditioning crew: The indoor air processed by the new fan, or the indoor air is directly treated to maintain the comfort and quality of the indoor environment.
3. Air treatment process:
Fresh air crew: its air treatment process is relatively simple, mainly paying attention to the filtering, regulating and sending wind of fresh air.The fresh air unit generally does not bear the thermal and humid load in the air -conditioned area, and mainly controls the temperature and humidity of the air supply.
Air -conditioning crew: The air treatment process is relatively complicated, and the indoor air needs to cool, dehumidify, heated, and humidify the indoor air to meet the comfort and quality requirements of the indoor environment.
4. Scope of application:
Fresh air crew: usually used in places that require fresh air, such as large buildings, public places, etc.Fresh air units are mostly used with small -scale space with fans.
Air -conditioning crew: It is widely used in the fields of buildings, industrial equipment and transportation, and is used to control indoor temperature, humidity and air quality.The air -conditioning units are mostly used in large -scale public areas that cannot be installed.
5. Structure and composition:
Fresh air crew: generally consisting of filters, air cooler/air heater, air supply fan, etc., and some also have humidified devices.Fresh air units generally include water valve regulation control, filter pressure difference, fan pressure difference, and processing fresh air temperature monitoring functions.
Air -conditioning unit: It includes multiple components such as compressor, condenser, evaporator, and expansion valve. Its core components are compressors for compressing refrigerants to achieve air cooling and dehumidification.