Magnetic Door Holder Fire Alarm Systems Wiring Diagram

It will interrupt the power if alarmed causing the doors to be released thus allowing the door closers to close the doors.

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. The detector trouble circuit monitors if power is lost to the detector. Shall be controlled by the fire control system. To close fire doors in an emergency and prevent the spread of fire and smoke.

The alarm circuit monitors if smoke is detected. En1155 1997 cpd approved floor mounted 24v dc door holder 04390 41. These door holder releases have a holding force of approximately 25 lbf 111n. The device holds a door open while energized.

That much is. 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. Terminal numbers shown correspond to position numbers of terminal strips on.

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. Both door holders are fitted with an integral manual release button allowing the door to be closed without operating the fire alarm. 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. Both versions are supplied with a door mounting keeper plate.

The dorgards are great by the way but if the spec is magnetic door retainers they may want them as opposed to dorgards but if its high end property which a flat worth 3 5 mill is id expect a proper fire alarm in tbh a 2 zone panel is cheap enough and will give you the felxibility you need and give you extra income on repairs and servicing. A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. Making the magnetic field electrical current passes through the coil of the door holder. When power is restored the magnets will re energize permitting the doors to be manually returned to their held open position.

Master wiring diagram for 4 wire class a system with alarm panel monitoring. When the fire alarm system detects smoke the current to the door holder turns off allowing the door to close. End of line eol resistor determined and supplied by others. Depending on your fire alarm installation you may need to install a magnetic door holder at the location of each fire door.

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. A magnetic door holder is a relatively simple device that when powered typically by 24vdc or 120vac will create a magnetic pull.