This video demonstrates the 24 volt auxilliary fire alarm relay.
Fire alarm door relay.
Fire alarm disconnect input options.
This unit allows the fire alarm system control unit to provide emergency control of other systems in the building such as air handling systems door control devices smoke control systems or other functions required by the local code and or local authority.
With an alarm the fire alarm control relay switches off the auxiliary relay which in turn switches off the door holders.
System sensor multi voltage conventional relays are used for high current switching applications such as fan and damper assembly control door control air handling unit controls and other types of building system interfacing.
The fire alarm control relay is only used as a pilot duty switch to keep the auxiliary relay normally turned on.
Fire alarm disconnect latching or non latching is individually selectable for any or all of the four 4 outputs.
Fire alarm relays can come in many forms including wireless and detector bases.
Using a relay to control power to electric lock in this example the fire alarm provides a ground signal to a relay that controls power to all the locks.
It can be used with a mag lock or a strike that is configured in fail safe mode.
The siemens rpr 1 remote polarized is an optional accessory for a fire alarm system control unit.
The second way if the power supply does not have a set of fire alarm contacts is to use a supervised relay at the central point of generation.
B polarity reversal input from facp signaling circuit.
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.
Simply connect a supervised relay from or in the fire alarm panel to the contacts and the ada supply will disconnect power to the locks.
A normally open no or normally closed nc dry contact input.
To do this you will require fire alarm relays devices which allow the automation of certain functions.
Additional considerations to be met.
Gamewell fci silent knight firelite notifier siemens and est edwards are just a few name brand examples.
In this configuration the 12 vdc power to the lock originates from a central power supply.
