Fire Alarm Door Holder Wiring Diagram

They must be used in conjunction with closing devices. When power is restored the magnets will re energize permitting the doors to be manually returned to their held open position. Electromagnetic door holder releases are designed for virtually any remote door release applications.

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When the fire alarm system detects smoke the current to the door holder turns off allowing the door to close.

Fire alarm door holder wiring diagram.

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. Access solo dcu2 single door access contol unit. A magnetic door holder is a relatively simple device that when powered typically by 24vdc or 120vac will create a magnetic pull. Emergency door release wiring diagram.

Fire smoke barrier doors door releases when tripped by an alarm or smoke detector private offices door releases when triggered by a remote switch. Fire alarm door holder wiring diagram. Fire by jules bartow goldvein power u0026 automation technologies. Making the magnetic field electrical current passes through the coil of the door holder.

Shall be controlled by the fire control system. 114 142 fire u0026 security. That much is. Wiring them depends on what smoke heat alarms you have in if you have a fire panel unlikely in domestic unless landlord flats then use the open on alarm volts free relays to drop power to magnets if you have mains smoke heat detectors then they need to have an auxillary volts free output so you can use it again to drop power from magnets on alarm.

Electromagnetic magnetic door holder with switch. The door holder is an electromagnet a door holder prevents the door from closing because it hangs onto the door using magnetism. Depending on your fire alarm installation you may need to install a magnetic door holder at the location of each fire door. It will interrupt the power if alarmed causing the doors to be released thus allowing the door closers to close the doors.