In either case these fans draw more current than a fire system relay is rated to handle.
Fire alarm shutdown relay.
This requirement can be avoided if the fire safety function is wired in a fail safe fashion.
The intelligent fire alarm relay can only be used on intelligent fire alarm systems and is made specifically to work with particular brands of fire alarm systems.
A range of easy relay fire alarm relays are available from 12v and 24v dc coils to 230v ac 50 60hz coils.
On discount fire supplies we have a wide variety of fire alarm relays for sale.
Nfpa says this relay must be withen three feet of the starter or devuce to be shutdown.
Meeting the non emergency audio shutdown requirements for public spaces can be simple.
Gamewell fci silent knight firelite notifier siemens and est edwards are just a few name brand examples.
In some cases positive pressure fans are turned on to create a high pressure area in stairwells which keeps smoke out.
When a fire alarm occurs it is common to shut down hvac equipment to reduce the spread of smoke and air to feed a fire.
Our newest addition to our fire alarm relays category is wireless fire alarm relay that allows a network of wireless relays with 4 inputs outputs to be connected.
Remember to consult your local authority having jurisdiction usually your local fire marshal as they may vary to some degree in their understanding and implementation.
Typically a fire alarm relay to the appropriate equipment contacts via two wire conductor.
The addressable module is intended for use in intelligent two wire loops.
The intelligent fire alarm relay.
For example if the fan that needs be shut down when the fire alarm system smoke detector actuates shuts down automatically if.
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The fire alarm contractor usally places a shutdown relay next to the fan starter or vfd.
The cdrm 300 a multi output input module is designed for use with fire lite fire alarm control panels.
I complete the wiring from the relay.
Installing the wiring between the fire alarm control unit and the relay or other appliance must be monitored for integrity.