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Typical Small System 3™ Control Panel
System Configurations
This small cruise ship requires six zones to cover the accommodation spaces. The low deck heights of 7 feet 3
inches increases the possibility of smoke detectors alarming to tobacco smoke. The use of the RC-30U
confirmation module will tend to eliminate this concern by not reporting, but recording first alarm and
requiring the device to alarm a second time within a time frame adjustable to 1 minute, as this alarm confir-
mation results in an alarm delay. In the event of a true fire, it would be undesireable to have manual station
activation so delayed. Therefore, the manual stations are connected to their own ZU-35TS Zone Modules not
under the influence of the RC-30U.
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* These maximum recommended spacings are based on smooth ceilings and moderate air flow. In other cases
detector spacing should be shortened accordingly. Refer to NFPA 72 Annex A (2002 Edition) for guidance.
Ion detectors — 30 in any combination, plus any number of heat or manual stations, except for intrinsically
safe circuits (see Note on page 30 for intrinsically safe zone module regarding the number of DI-3IS detectors
allowed per zone).
Heat and manual station — only practical limitations.
Alarm circuits limited to 1.5A
NOTES:
1. These Typical control panels show external wiring connections only for customized module wiring. Refer to the respective
wire list and the appropriate specification sheets as shown in the Marine Fire Detection System Manual.
2. For proper wiring connections to the various approved detectors and notification appliances refer to the Marine Manual.
3. Refer to the Marine Manual for additional details.
36
Detector Spacing (Maximum)
y
p
e
M
o
o
m
p
D
T
1 -
1
o
m
p
D
T
1 -
3
5
2 /
0
o
m
p
D
T
1 -
3
5
2 /
0
o
m
p
D
T
1 -
4
0
1 /
9
I D
3 -
I D
3 -
S I
S
m
k o
e
P
E
1 -
1
1 /
1
T
Maximum Number of Devices per Circuit
d
l e
F
e
t e
B
t e
w
e
D
e
e t
c
o t
s r
5
* 0
0
C
L
5
* 0
0
W
P
5
0
0
X
P
5
0
4
0
3
0
3
0
e
n
F
e
t e
o t
W
a
l l
r o
P
r a
t i t
o i
n
2
* 5
2
* 5
2
5
2
5
1
5
1
5
1
5
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