Von Duprin 900-FA Power Supply Fire Alarm Relay, Satin Chrome

hey guys pickle 700 here and in today's video I'm gonna be showing you how I have my door holder wire through the firearm system going through two different relays and why it's going through two different relays instead of just one anyways let's jump right into the video so we're gonna start off at the panel by opening it up so first we have our 24 volt DC power coming off the non resettable power that power can be used for a few different things for for powering different firearm devices such as door holder not sure if you're supposed to use it for that application but when you only have one door holder that doesn't require too much current it's completely fine and on the resettable power you would often use four powered smoke detectors for a four watt or smoke detector that needs 24 volts power going into it anyways that's not the point it's getting powered off 24 volts power and if w