12: Calculating Current Draw And Standby Battery; Installing The Evs-100Wbu - Honeywell SILENT KNIGHT EVS Series Manual

EVS Device Installation
3. Connect the red wire from the battery harness to the positive (+) side of battery #1.
4.6.12 Calculating Current Draw and Standby Battery
This section helps determine the current draw and standby battery needs for your installation (18 AH 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. The system
supports a maximum of 35 AH.
EVS-100W 25V
EVS-100W 70.7V
EVS-100WBU
A Current Subtotals:
Notification Devices
B Current Subtotals:
C Total current rating of all devices in system (Line B) X 0.001
D Number of standby hours (24 or 60 for NFPA 72)
E Multiply line C (standby current) and D:
F Alarm sounding period in hours (For example, 5 minutes = 0.0833 hours):
G Multiply line C (alarm current) and F:
H Add lines E and G (AH = Ampere Hours):

4.7 Installing the EVS-100WBU

The EVS-100WBU provides backup capability when operating the EVS-100W in the 100 watt with backup mode for both single and dual
channel setups. The EVS-100WBU mounts on the EVS-100W board on the standoffs provided.
42
Figure 4.46 Battery Connection to EVS-100W
No. of
Device
Devices
1
1
1
Refer to device manual for number of devices and current ratings.
Table 4.6 Current Draw EVS-100W
Current Per Device
Standby: 110 mA 110 mA
Alarm:
Standby: 110 mA
Alarm:
Standby: 40 mA
Alarm: 110 mA
Total standby AH
Total alarm AH
Total AH required
EVS Series Manual — P/N LS10062-001SK-E:D 3/15/2022
Installing the EVS-100WBU
Standby Alarm
Current Current
1.2 A 1.2 A
110 mA
1.4 A
40 mA
110 MA
mA
mA
A
H
AH
AH
1.4A
mA
mA
A
H
AH