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Model MFD33HD1
Counterbalanced
Backdraft Damper
METAL FORM MANUFACTURING CO., INC
5960 WEST WASHINGTON STREET
PHOENIX, ARIZONA 85043
TELEPHONE: 6022331211 FAX: 6022332033
WEBSITE ADDRESS: WWW.MFMCA.COM
Heavy
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How to fill out backdraft damper

How to fill out a backdraft damper
01
Begin by identifying the backdraft damper in your ventilation system. It is typically located in the ductwork or exhaust fan.
02
Make sure you have the necessary equipment to fill out the backdraft damper, such as a screwdriver or wrench.
03
Start by turning off any power source connected to the backdraft damper to ensure your safety.
04
Carefully remove any screws or fasteners securing the cover of the backdraft damper using a screwdriver or wrench.
05
Once the cover is off, you will see the internal mechanism of the backdraft damper. It usually consists of a flap or blades that allow air to flow in one direction only.
06
Check the blades or flap for any debris, dust, or obstructions. Use a damp cloth or a mild cleaning solution to gently clean them if necessary.
07
Inspect the hinges or pivot points of the backdraft damper for any signs of wear or damage. If needed, lubricate them with a suitable lubricant.
08
Replace the cover of the backdraft damper and secure it back in place using the screws or fasteners.
09
Turn on the power source and test the backdraft damper by turning on the ventilation system or exhaust fan. Ensure that the air flows in the desired direction and that the backdraft damper is functioning correctly.
Who needs a backdraft damper?
01
Individuals or businesses that have ventilation systems or exhaust fans installed in their facilities may require a backdraft damper.
02
It is particularly useful in buildings where there is a high wind environment or extreme temperature fluctuations that may create a reverse airflow.
03
Backdraft dampers are essential in preventing backdrafts, which can result in energy loss, reduced ventilation effectiveness, and potentially hazardous situations.
04
They are commonly used in residential homes, commercial buildings, industrial facilities, and healthcare facilities to improve indoor air quality and maintain proper airflow.
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What is backdraft damper?
Backdraft damper is a device that allows air to flow in one direction and prevents reverse airflow.
Who is required to file backdraft damper?
Building owners or HVAC contractors may be required to file backdraft damper depending on local regulations.
How to fill out backdraft damper?
Backdraft damper can be filled out with information about the location, type, and installation date of the damper.
What is the purpose of backdraft damper?
The purpose of backdraft damper is to prevent the backflow of air, smoke or gases.
What information must be reported on backdraft damper?
Information such as damper type, size, location, and installation date must be reported on backdraft damper.
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