Edwards Signaling FireShield 10 Zone - Manual (Page 43)

FireShield Technical Reference Manual A.1
Appendix A
Calculations
Battery calculation worksheet
Use this worksheet to determine the minimum amperage
capacity required for the panel's standby battery. You can
obtain operating current requirements for notification
appliances from their respective installation sheets.
Notes
[1] Base panel includes the main controller board with no
load, only EOL resistors.
Standby current: three-zone - 110 mA, five-zone - 120
mA, ten-zone - 145 mA
Alarm current: three-zone - 145 mA, five-zone - 170 mA,
ten-zone - 250 mA)
[2] The maximum battery size the panel can charge is 18 Ah
(Power-Sonic P/N PS-12180-NB or equivalent). Refer to
"Panel specifications" in Chapter 2 for more information.
If batteries over 7 Ah are required for the three- and five-
zone panels, you must use the BC-2 battery cabinet. Refer
to installation sheet P/N 3100027.
[3] Use maximum value or actual calculated value from
Form B. The IDC alarm current is included in the panel
alarm current.
Standby
Current (mA)
Alarm
Current (mA)
Base panel [1]
FSDACT (optional) (40) (60)
Aux current (see Form A)
IDC detector current [see Form B] [3]
NAC 1 load [see page A.3] 0
NAC 2 load [see page A.3] 0
NAC 3 load [see page A.3] 0
NAC 4 load [see page A.3] 0
Total current
Required standby and alarm time × Standby
time 24 or
60 hour × Alarm time 5 min = 0.083 hr
10 min = 0.167 hr
15 min = 0.250 hr
30 min = 0.500 hr
mAh + mAh = mAh
÷ 1000
Battery amp hour total = Ah
× 1.2
Minimum battery size [2] = Ah