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FIREFINDER SERIES II
INSTALLATION,
COMMISSIONING
&
OPERATION
Isolate Relay
Alarm Relay
N
O
C
N
C
+
-
+
-
N
O
C
N
C
Batt Fail Relay
( Normally Energised )
Valve Mon Relay
+ IN -
+ BAT -
3
0
2
-6
7
3
0
+
-
F2 2A
F6
1A
RL4
F7 1A
F8 1A
TB2
C N 5
TB1
RL7
RL5
RL6
CN6
TB6
C N 1
C N 2
RL8
TB11
F1
6.3A
F4 1A
F3 2A
C N 3
TB8
TB7
TB10
TB9
///
NO
NC
C
RL1
F5 1A
RL2
+
-
Fault
N
O
C
N
C
+
-
N
O
C
N
C
N
O
C
N
C
N
O
C
N
C
To CN7 of the Main
Controller Board
- +
-
- +
-
- +
-
CN1, 2, 3 Supplies
Reg27VDC
to Internal Boards
+27VDC
from PSU
Note: NC C NO
Denotes Voltage
Free Contacts
NC = Normally Closed
C = Common
NO = Normally Open
TB4
TB5
Monitored
Un-monitored
Monitored
EOL
Required
EOL
Required
Monitored
EOL
Required
Monitored
EOL
Required
C
NC
NO
N
O
C
N
C
Un-monitored
ASE
Fault
Bell 1
Bell 2
+
+
-
TB3
EOL
10K
Ohms
Warning System
Alarm
Auxiliary
Door
Switch
DBA
MCP
Battery 2
12Volts
Battery 1
12 Volts
+
-
-
+
-
Warning System
27VDC
* NOTE: When used
for the EV40 F7
MUST be changed
to 3 Amps
Bell
or Sounder
Aux 2 27VDC Supply
Note: Wired as for a Bell TB5 1, 2
could be used as a Sounder O/P
Note: If a diode is NOT fitted
internally to a bell / sounder a
diode MUST be fitted as
shown - fit 1N4004 or similar
*
Figure 11: Brigade / PSU Monitor Board Layout
Note:
When connecting to the Brigade PSU Monitor board t
ransient and “Flyback” (Back EMF)
protection methodologies MUST be applied.