SYZ series centrifugal air-conditioning fans are based on SYT series, which are newly developed and manufactured products with internationally advanced by this company. It was developed by using high technology and with low noise and compact structure. It was specially designed for the air-conditioning. The flow rate and total pressure range of this series fan are from 800m /h to 5000m /h. It is the ideal equipment for the changeable air conditioners, tube type units, VAV system, heating and other kind of fan system.