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Magnetic door holders for fire doors.
Most door holders come with a simple to use sticker for purposes of marking the fire door.
By greg havel 6 5 09.
Mount the wall plate in an electrical outlet box or use a surface mount box sold separately.
Adi ed 1501aqn5 model.
Door holders for fire doors.
Floor mount door hld 24 120v.
On commercial fire doors the magnetic fire door holders serves an array of purposes and safety functions.
Primary application includes holding and releasing of fire rated doors that are required to provide a barrier for fire and smoke in an emergency or the convenience of door closure by remote control.
All are reversible for right or left door swing directions.
For use with doors that already have a closer these holders keep doors open with an electromagnet.
For example the most common use is using the magnetic door holder as a hold open device.
When activated by a fire alarm the magnet shuts off and releases the door.
On the fire alarm side you would need a control relay to intercept a switch leg of power to the door holder circuit as well as an initiating device such as a smoke detector to activate the relay.
Fire rated door and frame assemblies were developed to close openings in.
Once we completed the drilling we screwed the door holder hardware tightly to provided bracket on the back side of the fire door.
These electromagnetic door holders will keep the door open.
Step 6 now for the magnetic door holder pictured here we drilled two 1 8 pilot holes then followed them up with 5 8 holes.
These fire rated door holders have an energized coil which creates a magnet strong enough to hold the self closing fire rated doors in the open position.
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In the event of a power failure they release the door to a closed position to keep the facility secure.
Article and photos by gregory havel.
This is extremely useful in long hospital hallways and corridors.
Wire these holders directly into your fire alarm system.
They provide a high holding force.
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Dc usa approved grade 1 heavy duty door closer with full cover adjustable spring and backcheck for 32 to 60 interior doors or 28 to 54 exterior doors commercial extreme heavy duty grade 1 full cover surface mounted door closers for excessive wind abuse and extra high traffic door applications.