A fresh air handling unit is an air handling device used to process fresh outdoor air. The main types include direct expansion air handling units and fresh air handling units, which are used in commercial office buildings, clean rooms, and makeshift hospitals.
It uses the direct expansion cooling method and has functions such as cooling, dehumidification, fresh air supply, ventilation, and air purification. Some products have variable frequency control, which can automatically switch operating modes according to the outdoor temperature and can be interlocked with the indoor air conditioning unit.
The main product types or aliases of fresh air handling units include direct expansion air handling units, digital variable capacity direct expansion air conditioning units, direct expansion combined air handling units, variable frequency direct expansion air conditioning units, purification-type heat recovery fresh air handling units, standard series fresh air exchangers, and high-end series fresh air exchangers. In addition, VRV 100% fresh air handling units and AHU direct expansion air handling units are also common types.
