MG series VAV fan box Characteristics:Frame uses combined type design,accessories is made by special mould pressing and precision metal sheet.Frame integrate with box board,so it is firm,hermetical,and sound insulation efficiency is very good.VAV control can use two ways ,adjusting voltage and electricity frequency. Uses:Apply to working buildings,hotels, emporiums, hospitals,and senior civil buildings ventilation and used to increasing fan box pressure of air-conditioning system . Specifications:020#~300# VAV:2000~30000m3/h Pressure:210~600pa