... 60000m3 / h) and ceiling-type (air volume from 1000 ~ 16000m3 / h) three major series, can meet the cooling, heating, humidification ... highly efficient and energy-saving products, GRAD series of modular air Conditioning unit is the result of practice and ... , please provide the following parameters: functional sections, air volume ,refrigeration, air pressure and the technical requirements, , we shall ...