There are 2 main types of dampers and they adjust fan capacity with different system effects.
Exhaust fan with motorized damper.
A common problem when combining a building automation system with a 3 phase fan that must open a damper before operating is the damper end switch interlock for the motor starter hand position.
This is easy to do when the fan starter is in the auto position the control system can power the damper actuator and a damper end switch will close the auto control circuit.
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Exhaust shutters exhaust louvers motorized shutter louvers and weather hoods are a typical accessory used when installing an exhaust fan or supply air fan in the wall.
120 240v 0 19 0 11a 60 hz.
They help keep heat or cool in the building and birds and insects out.
Motorized dampers from grainger feature stainless steel jamb seals to help keep out light air and moisture.
This maxxair 14 industrial exhaust fan is a powerful fan that can be used in garages barns greenhouses and a variety of other locations.
2 pack 4 backdraft damper duct backflow preventer inline fan vent vent deflector professional back draft damper inline spring loaded exhaust pipe check fan valve with 2pcs clamps 18 99 18.
Airflow control and balance once an iris damper has been installed and the system is operational the damper may be adjusted to deliver required airflow using the airflow adjustment chart located on the damper.
Backdraft dampers ventilation shutters and louvers are either manually or mechanically opened and closed.
Choose from mill finish extruded aluminum frames and g 90 galvanized steel dampers.
Damper is equipped with a motor to open and a spring return to close.
They are commonly modulated with electric or pneumatic actuators.
Visit cfm select to utilize continental fan s state of the art fan selection and quotation platform.
N 1 fan fan 1 fan 2 isolation dampers lab exhaust bypass air damper bypass air figure 1.
2 from the inside out back spin condition it may cause the fan to run in the wrong direction the motor starter to trip out or overload or result in mechanical drive failure due to.
Protect your fan building against the weather with louvered exhaust dampers motorized louvers and vents rain weather hoods.
Maximum airflow is 3500 fpm.
The fan motor speeds remain constant.
99 get it as soon as thu oct 1.
Rough in opening is 17 25 x 17 25.
54md and 60md models are 240v only.
