Fire Alarm Door Holder Wiring Diagram

They must be used in conjunction with closing devices.

Fire alarm door holder wiring diagram. It will interrupt the power if alarmed causing the doors to be released thus allowing the door closers to close the doors. Access solo dcu2 single door access contol unit. 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. Fire alarm door holder wiring diagram.

Electromagnetic door holder releases are designed for virtually any remote door release applications. Fire smoke barrier doors door releases when tripped by an alarm or smoke detector private offices door releases when triggered by a remote switch. Emergency door release wiring diagram. 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.

When power is restored the magnets will re energize permitting the doors to be manually returned to their held open position. 114 142 fire u0026 security. Fire by jules bartow goldvein power u0026 automation technologies. Electromagnetic magnetic door holder with switch.

A magnetic door holder is a relatively simple device that when powered typically by 24vdc or 120vac will create a magnetic pull. The door holder is an electromagnet a door holder prevents the door from closing because it hangs onto the door using magnetism. Making the magnetic field electrical current passes through the coil of the door holder. Depending on your fire alarm installation you may need to install a magnetic door holder at the location of each fire door.