To close fire doors in an emergency and prevent the spread of fire and smoke.
Magnetic door holder fire alarm systems wiring diagram.
The door holder is an electromagnet a door holder prevents the door from closing because it hangs onto the door using magnetism.
Collection of magnetic door lock wiring diagram.
When power is restored the magnets will re energize permitting the doors to be manually returned to their held open position.
The device holds a door open while energized.
The magnetic portion of this device is installed on the wall that meets the open fire door now to tie this whole concept together you will.
Both versions are supplied with a door mounting keeper plate.
Master wiring diagram for 4 wire class a system with alarm panel monitoring.
The detector trouble circuit monitors if power is lost to the detector.
A magnetic door holder is a relatively simple device that when powered typically by 24vdc or 120vac will create a magnetic pull.
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.
Both door holders are fitted with an integral manual release button allowing the door to be closed without operating the fire alarm.
It shows the components of the circuit as simplified shapes and also the power as well as signal connections in between the gadgets.
The activating input sw1.
A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit.
Shall be controlled by the fire control system.
Door release supply fire control panel sounder circuit door release magnets sounders end of line resistor output sw1 sw2 a a a mains fuse block note the wiring to sw1 from the fire control panel sounder circuit should be as shown to include full monitoring if spurred off the wiring will not be monitored.
The alarm circuit monitors if smoke is detected.
Depending on your fire alarm installation you may need to install a magnetic door holder at the location of each fire door.
That much is.
Terminal numbers shown correspond to position numbers of terminal strips on.
When the fire alarm system detects smoke the current to the door holder turns off allowing the door to close.
These door holder releases have a holding force of approximately 25 lbf 111n.
When de energized by a relay controlled by the fire alarm system or other switch the door is released to a closed position checking the spread of smoke and flames.
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.
En1155 1997 cpd approved floor mounted 24v dc door holder 04390 41.
It will interrupt the power if alarmed causing the doors to be released thus allowing the door closers to close the doors.
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