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ECS Series Manual —
P/N LS10262-001FK-E:A 3/3/2021
Device Installation
Installing the FIK-50WBU
4.7.11 Backup Battery for FIK-DUAL50W
The following steps explain how to connect the batteries (refer to Figure 4.59):
1.
Connect the black wire of the battery harness to the (-) side of the battery #2.
2.
Connect the jumper wire provided form the positive (+) side of battery #2 to the negative side of battery #1.
3.
Connect the red wire from the battery harness to the positive (+) side of battery #1.
Figure 4.54 Battery Connection to FIK-DUAL50W
4.7.12 Calculating Current Draw and Standby Battery
This section helps you determine the current draw and standby battery needs for your installation (18 Ampere Hours maximum will fit in
cabinet). Complete the remaining instructions in Table 4.6.
Batteries larger than 18 AH will not fit in the main control cabinet, and must be housed in the RBB Accessory Battery Cabinet. Maximum of
35 amp hr for the system.
4.8 Installing the FIK-50WBU
The FIK-50WBU provides backup capability when operating the FIK-DUAL50W in the 100 watt with backup mode for both single and dual
channel setups. The FIK-50WBU mounts above the FIK-DUAL50W board on the standoffs provided.
Device
No. of
Devices
Current Per Device
Standby
Current
Alarm
Current
FIK-DUAL50W 25V
1
Standby: 110 mA 110 mA
Alarm: 1.2 A
1.2 A
FIK-DUAL50W 70.7V
1
Standby: 110 mA
110 mA
Alarm: 1.4 A
1.4A
FIK-50WBU
1
Standby: 40 mA
40 mA
Alarm: 110 mA
110 MA
A
Current Subtotals:
mA
mA
Notification Devices
Refer to device manual for number of devices and current ratings.
B
Current Subtotals:
mA
mA
C
Total current rating of all devices in system (Line B) X 0.001
A
A
D
Number of standby hours (24 or 60 for NFPA 72)
H
E
Multiply line C (standby current) and D:
Total standby AH
AH
F
Alarm sounding period in hours (For example, 5 minutes = 0.0833 hours):
H
G
Multiply line C (alarm current) and F:
Total alarm AH
AH
H
Add lines E and G (AH = Ampere Hours):
Total AH required
AH
Table 4.6 : Current Draw FIK-DUAL50W