It ensures that in the event of a fire or a fault on the fire alarm system any doors that are.
Fire alarm door release relay.
Today open area smoke detectors are most often used.
The door release module is an interface designed to enable eaton s addressable fire alarm systems to work in tandem with door holders retainers.
The use of 120vac smoke alarms for the automatic release of smoke doors in a facility was once a common method of smoke control.
To prevent transient voltage spikes from burning out the control relay contacts an auxiliary relay with big contacts should be installed between the fire alarm control relay and the door holders.
The module is compatible with fike s cyber cat and cheetah xi intelligent control panels.
Integrating fire alarm control using direct wiring.
Schematic diagram showing how to land the wires when using an auxiliary.
In this next section you will learn why.
Then the auxiliary relay takes the voltage spike and the fire alarm control relay only has to turn off the auxiliary relay.
According to section 5 14 6 3 when smoke alarm units are used to release doors they must be listed for smoke control.
These contacts can be used to control external appliances such as dampers fans door holders etc.
The door access control reader and the electric lock can be wired to the fire alarm in a number of different ways.
Tutorial para sa relay module ng fire alarm.