The resistors in the panel are so the panel can identify if a circuit has been broken or not while not energized. For example, the resistor on a notification appliance circuit would go at the very end of the line. The panel checks the circuit for resistance close to that of the resistor to “prove” that the whole line is there and intact. If there were to be a break in the line somewhere, there suddenly would be no resistance to monitor for therefore causing a trouble condition. Resistors always go at the end of line, so this is why fire alarm wiring should NEVER be T tapped. These are always on Class B notification circuits and conventional initiating circuits. Addressable systems do not require resistors on the signaling line loop.
As mentioned elsewhere these are end-of-line resistors. They are also installed in the panel for unused terminals, otherwise the panel would see open loops and put on the trouble signal.
love your channel dude, this is exactly what i want to do (explore abandon buildings and look at all the fire alarm and mech stuff thats in the building)
cant wait to see you restore some of the systems such as the fire and elevator. shame the main pannel is missing and so destroyed! would have loved to see that oldie.
When the panel is beeping you can press the red button on the bottom it will acknowledge the beeping or you can connect a 12 volt 7 amp battery to the battery plug ins press the button quickly hold for about half to a full second the top button resets the system so if it’s in alarm and you reset the pull station then you go to the panel the top button aka the reset will turn the alarm off I own one of these panels very fun!
Looks like the old fire alarm devices are SpaceAge AV-32 from the 70s while the new ones are Gentex Commander 1's from the 90s. It even looks like the new devices were retrofitted on top of the old ones. What did you plan on doing with this old system are you going to try to get it in working order?
Get a new system in there, maybe potter or EST, not honeywell garbage for sure tho. Oh Or Autocall! 90 percent sure that dialer cant be plugged in. so thts not up to current code. Guess it varies on local AHJs
The resistors in the panel are so the panel can identify if a circuit has been broken or not while not energized. For example, the resistor on a notification appliance circuit would go at the very end of the line. The panel checks the circuit for resistance close to that of the resistor to “prove” that the whole line is there and intact. If there were to be a break in the line somewhere, there suddenly would be no resistance to monitor for therefore causing a trouble condition. Resistors always go at the end of line, so this is why fire alarm wiring should NEVER be T tapped. These are always on Class B notification circuits and conventional initiating circuits. Addressable systems do not require resistors on the signaling line loop.
The resistors in the panel are so the panel can identify if a circuit has been broken or not while not energized. For example, the resistor on a notification appliance circuit would go at the very end of the line. The panel checks the circuit for resistance close to that of the resistor to “prove” that the whole line is there and intact. If there were to be a break in the line somewhere, there suddenly would be no resistance to monitor for therefore causing a trouble condition.
Resistors always go at the end of line, so this is why fire alarm wiring should NEVER be T tapped.
These are always on Class B notification circuits and conventional initiating circuits. Addressable systems do not require resistors on the signaling line loop.
As mentioned elsewhere these are end-of-line resistors. They are also installed in the panel for unused terminals, otherwise the panel would see open loops and put on the trouble signal.
love your channel dude, this is exactly what i want to do (explore abandon buildings and look at all the fire alarm and mech stuff thats in the building)
cant wait to see you restore some of the systems such as the fire and elevator. shame the main pannel is missing and so destroyed! would have loved to see that oldie.
When the panel is beeping you can press the red button on the bottom it will acknowledge the beeping or you can connect a 12 volt 7 amp battery to the battery plug ins press the button quickly hold for about half to a full second the top button resets the system so if it’s in alarm and you reset the pull station then you go to the panel the top button aka the reset will turn the alarm off I own one of these panels very fun!
The things in the old boiler room that you called a smoke detector they’re not smoke detectors. They’re heat detectors.
5:35. That is a Spaceage branded device. These are from I believe the 80’s era
What was the brand on the big red fire alarm panel near the front entrance? That would have been the main controller for the building.
Whats your plans for this place
At 6:18 theese are actually Edwards Heat detectors. Not smoke detectors.
Strange how quickly drop ceilings… drop when left unmaintained. Maybe step one for restoration should be a huge vacuuming of the floors?
When a building isn't dehumidified, lots of things degrade rapidly. Especially if there are roof leaks.
More electrical?
The resistors are for end of line for the panel
Looks like the old fire alarm devices are SpaceAge AV-32 from the 70s while the new ones are Gentex Commander 1's from the 90s. It even looks like the new devices were retrofitted on top of the old ones. What did you plan on doing with this old system are you going to try to get it in working order?
the 2 devices at 6:00 are both heat detectors, not smoke detectors.
Is there any morgue or surgical rooms in there
Enjoying the videos!
Those these drop ceilings and how many of those troffers actually work!
I wonder how much of the data network is left. I also wonder if the place has ever been upgraded to cat6 or if there is some Cat5e or Cat3 left behind
With it being closed in 05 I doubt there is any cat6
Get a new system in there, maybe potter or EST, not honeywell garbage for sure tho. Oh Or Autocall!
90 percent sure that dialer cant be plugged in. so thts not up to current code. Guess it varies on local AHJs
Just for fun I wanna mention I have a vintage Exit sign😁
I’ll take the whole fire system if u get rid of it
The resistors in the panel are so the panel can identify if a circuit has been broken or not while not energized. For example, the resistor on a notification appliance circuit would go at the very end of the line. The panel checks the circuit for resistance close to that of the resistor to “prove” that the whole line is there and intact. If there were to be a break in the line somewhere, there suddenly would be no resistance to monitor for therefore causing a trouble condition.
Resistors always go at the end of line, so this is why fire alarm wiring should NEVER be T tapped.
These are always on Class B notification circuits and conventional initiating circuits. Addressable systems do not require resistors on the signaling line loop.
5:35. That is a Spaceage branded device. These are from I believe the 80’s era