| 摘要 |
The fan synchronizer is a small flow tube 5, 2″ IPS or smaller, connected between the supply fan 13 duct and return and/or exhaust fan 16 duct that allows flow through the tube 5 to issue a signal from an in line flow meter device 2 that will control the supply fan 13 and return/exhaust fan 16 to be synchronized to hold a set flow difference throughout the system flow range without series flow instability. The purpose is to maintain, in a variable flow system, a positive or negative building or room pressure difference to atmosphere, avoiding series flow instability of the fans.
|
