I replaced some air conditioners at a daycare from the 60s that still has a functioning conventional system in it. It had a huge annunciator panel almost the size of a residential breaker panel with little incandescent bulbs to show where alarm was and large push buttons for silence and reset and lamp test. I set it off while i was brazing. The horn was very loud and sounded like a fog horn. There was only one strobe on the front outside of the building. The old motorized type with a red cover. It would be something cool to add to a collection.
QUESTION: is there a way i could do signal silence while leaving the strobe going? maybe by using an arduino to modulate the signal going to the device? i've been hoping this video would be created at some point! Thanks! Great video as always!
No. A normal 2-wire detector cannot usually be hooked up to a burgular alarm system (unless its a older panel) as the current and/or voltage that is on the burgular panel's sensing terminals are too low to power up a detector. A pull station can however be easily be hooked up to a burgular alarm system as its just a passive switch like a door magnet. An older panel, sometimes usually puts out the whole panel voltage on the sensing terminal, meaning it can still be used with 2-wire detectors. For newer burgular panels, you either have to use a relay detector (a smoke detector, that contains a NC, C and NO terminal, or a NC+C terminal) or you have to use a so called "Smoke Detector card", which converts the 2 wire detectors to conventional burgular detector outputs, that then can be hooked up to a normal burgular panel. A Smoke detector card, uses some resistors and other passive components, to create the required voltage and current on the smoke detector line so the detectors can be powered up. Some newer burgular panels however designate some zones as "smoke zones", like "Zone 1 is a smoke detector zone". These can by programming, be switched to a "smoke detector zone" which means its characteristic is changed to be able to power up a smoke detector and also act on its detection. On some panels, like Paradox, the PGM outputs can be programmed as a smoke zone, meaning the output in conjunction with AUX+ will work as a "input" thus triggering a fire alarm when a smoke detector is triggered.
Some really old 115VAC fire alarm systems were set up this way (usually for really small buildings). they were set up as non-coded pull boxes wired directly to the signals fed off of a separate breaker.
Hey nic I wired this exactly as you showed. Detector blinks and I have 24vdc from a power supply. However I am only getting 4 volts on alarm (pressing test button) wired this way going to my horn strobe. Any idea why this may be happening?
Basically, two wire smoke detectors act like pull stations, its like a switch. Also for four wire smokes, when in alarm you will need to use a separate switch for the power terminals of the four wire smoke detectors.
Let me tell you something me and my friend hooked up my fire alarm system and the pull station when you reset the Pull Station the alarm goes off and when you pull down the Pull Station the alarm doesn't go off
@@Stihl_theofficer the only thing I can think of is it's wired incorrectly and the device is usually getting the power and when the pull station is pulled and it is shorting out the power supply therefore no power for the device to operate
Hi could anyone help me build my first fire alarm because i live in Poland and i cant find a trusted place to build fire alarms for cheap and i dont know much about smoke detector or panel i wanted to make my project without a panel so i need somone to help me with it and help me find the smoke detector like in the video simple to wire up and without a panel thank you all people that help me with it 😀❤
Awesome turtorial! Quick question: Is is possible to put a voice evac message on the alarm without a panel? I want to start doing drills in my house with voice instructions for my little siblings to understand what to do. The current smoke alarms in my house are pretty bad and just wanted to see if this could be an option. Thanks!
If I wanted to wire multiple horn/strobes in my house without a panel, I'd simply wire those in series, to make an "alarm loop" and simply connect all my triggering devices to the alarm loop?
It would be really cool if I could attach conventional smoke fire alarm devices to a home automation/security system using relays and Arduinos or home assistant fire alarm panel integration
