Volume Damper Near Exhaust Fan Entry
Volume Damper Near Exhaust Fan Entry
(OP)
We have Installed 6 Centrifugal Exhaust fans for Multi Purposes ( Toilets Ventilation , Kitchen Hood Exhaust , Public area Exhaust ) .
we have installed dampers on each branch in the ducting system , but now the Consultant is asking us to install the Volume damper on the roof near the exhaust fan entry also for balancing purpose and something about exhaust fan amperes , i dont get it , as i told him that we have volume dampers each branches , and we will start balancing from the last branch and every thing will be ok ,
did i missed some thing or the consultant is right
we have installed dampers on each branch in the ducting system , but now the Consultant is asking us to install the Volume damper on the roof near the exhaust fan entry also for balancing purpose and something about exhaust fan amperes , i dont get it , as i told him that we have volume dampers each branches , and we will start balancing from the last branch and every thing will be ok ,
did i missed some thing or the consultant is right





RE: Volume Damper Near Exhaust Fan Entry
RE: Volume Damper Near Exhaust Fan Entry
RE: Volume Damper Near Exhaust Fan Entry
Direct drive fans should have a speed control.
Belt drive fans should have an adjustable sheave.
Both negate any need for a damper to control overall air flow.
Kitchen hood is not allowed to have damper at all.