Yes, you can put them there.
And that should clear the zone troubles and the nac fault?
The resistors should go from the positive terminals to the negative terminals on the last device on the circuit if you want to do it correctly. Placing them on the panel board defeats the purpose of trouble supervision. If something went wrong in the field wiring, the panel wouldn’t show a trouble because the resistor is directly on the board. However, for demo purposes it is okay.
Okay thanks for your help guys!
You should never connect zones together or signal circuits together. All must be their own circuit. Doing this can severely damage some fire alarm panels.
I only have one nac so I have wires going from my panel to my Wheelock ns and another serif wires going from my ns to my spectrAlert
A basic tenant of fire alarm 101 setup and install is:
Always place your e.o.l.'s (the 4.7kohm in this case) resistors on your inputs and outputs and check and install your batteries. That is, always make your panel normal before connecting any field wiring.
Always meter your field wiring for proper e.o.l.'s, opens, shorts, as well as the presence AC voltages and grounds before connecting to your panel. Nothing like a ground fault, dead short, or stray misconnected 120vac voltage blowing your nice panel up!
I have seen installing electricians install 120vac door holders (80 pairs) in a multi-wing, multi-story army hospital incorrectly, and place 120vac on the addressable SLC loop (Signal Line Circuit). Luckily, in my pre checkouts, I tested the SCL loop for AC voltages first, (with meter tips first, and not bare wires to finger/meter tips) and read 120 vac before hooking up to a SLC network card!
I also noticed in your picture that you did not have the battery harness plugged in? If you do not have a battery set yet, you can take an extra 1/2 watt 4.7kohm resistor and place this across the batt terminals; this will simulate a set of batteries to the FACP’s supervision circuit for now. But, as with all modern microprocessor based FACP’s (and even older panel’s), that a solid set of batteries is critical, as the panel uses the batteries as it’s DC protection against ac brown outs, ac failures and ac surges, in which surges are one of the major causes of panels failures and false alarms.
Batteries, for test purposes, a 12 volt 1.2 amp hr battery is fine if this is a 12volt system, and if a 24volt system, then two of the same batteries in series is fine.
Ac power, I noticed that you had what looked like a three wire grounded ac cord which is very good. But also check that the neutral is the neutral on your cord and outlet! A quick check with a volt meter in ac mode, should read “0” zero volts between neutral and the ground lug on the outlet.
I hope this helps.
Paul
Test Test
So I place e.o.l.s on any open terminal on my panel and the nac, and 2 zones?
No, an EOLR is only needed on zones (IDC) and NAC. These are supervised circuits. The resistor at the end of the circuit provides a known current flow. The panel uses that known current flow to verify that the circuit to the last device is complete. If the circuit is broken (open) the panel looses that known current and turns on a trouble.
The alarm relay, trouble relay, and detector power terminals are not supervised. These circuits do not check for a resistor, so none is needed there.
In my 40+ years in fire alarm I have never seen a battery supervision circuit that can be fooled by a resistor. The panel turns the charger circuit off momentarily and checks for presence of battery voltage. I have fooled some panels using a capacitor across the battery terminals. About 1,000 micro-farads usually works unless the panel does a load test on the batteries.
Okay thanks! Last question, do you need to put a resistor on the last pull station/ horn strobe on each circuit?
Yes. But if there is a resistor at the last pull station or horn strobe, don’t put one on the zone terminals as well.
So it’s one or the other, got it, I’m finally getting resistors today
Hey guys, I have the proper resistors on the nac and zone screw terminals as well as on each of the pull stations which are on seperate zones and not connected by any wire to each other and I still have zone troubles, no more nac fault troubles, the pull stations still won’t initiate the alarm. Am I doing something wrong?
Can you post a close-up picture of the connections to the pull stations?
Sure, btw the wires from the panel run along behind it
Here is the wiring from the panel to the pull stations
You only need one set of resistors, take the ones out at the panel.
Here is the panel powered on
Until you get batteries, you will have 1 trouble, yets try and get the zone to work.