Make up air fans ventilate fresh air back into a building in a controlled manner, replacing air that the exhaust fan removed. They eliminate the dilemma of negative air pressure, which causes problems such as air rushing in when a door is opened, drafts and back drafts, cold spots and windchills, and inefficient exhaust fan operation.
- Housing constructed of G90 galvanized steel
- 10'' blower, efficient motor, pulleys and belt
- Lid is removable with spring loaded lid latches for full access to internal workings
- System balancing and field adjustment are possible with the variable pitch motor pulley
- Vibration isolation
- Adjustable drive sheaves
- Disconnect switch
- 2'' washable filters