Typical Nfpa Style B Initiating Device Circuit - Johnson Controls FC-2000 Installing

Typical NFPA
Style B Initiating
Device Circuit
A B C D E F G H
b + b- b+ b- b+ b- b+ b - b +b - b+ b - b + b- b+ b -
I Z B
M O D U L E M O D U L E
I NI T I A T IN G
T Y P E T Y P E
Z O N E
L A M P S L A M P S
S W I T C H S W I T C H
RED- ALA RM
YEL L O W - TRO UBLE
DISP L AY PRO G RAM
A
B
C
D
Figure 26: NFPA Style B Field Wiring of the IZM-8 Initiating Zone Module
Notes:
1. Initiating device circuits are supervised, power limited, and may be
All manuals and user guides at all-guides.com
Typical NFPA Style B
Initiating Device Circuit
FIR E
I NI T I A T IN G PUSH IN
T HEN
Z O N E
PULL
RED- ALA RM
YEL L O W - TRO UBLE
DISP L AY PRO G RAM
E
F
B + B -
G
1
H
connected to limited-energy cable. Initiating devices include
non-coded manual pull stations, heat detectors, photo and ion
detectors, and waterflow alarm and waterflow supervisory devices.
Connect waterflow alarm devices to a dedicated circuit programmed
for the waterflow option. Connect N.O. waterflow supervisory
devices to a dedicated zone programmed for supervisory operation.
Terminal Block will accept 12 to 22 AWG wire. Initiating circuit
current will ensure alarming of one 2-wire detector only.
4 .7 K , 1 /2 w a tt E LR , P a rt N o. 7 12 52 (N o te 5).
U L Listed 2 -w ire S m oke D e tector (N ote 2 )
Manual Pull Station
DOWN
Heat Detector
2 3 4 5 6 7 8 1 2
Installation—Installing the FC-2000
Dummy load all
unused circuits with
4.7K, ELR,
Part No. 71245.
B + B -
3 4 5 6 7 8
nfpa-b
35