5: Maximum Battery Standby Load - Honeywell Farenhyt Series Installation And Operation Manual

B Auxiliary Devices Current
Notification Appliance Circuits
5495/5499 Power Supply
C Notification Appliances Current
D Total current ratings of all devices in system (line A + line B + C)
E Total current ratings converted to amperes (line D x .001):
F Number of standby hours (24 or 60 for NFPA 72, chapter 1, 1-5.2.5):
G Multiply lines E and F.
H Alarm sounding period in hours. (For example, 5 minutes =.0833 hours)
I
Multiply lines E and H.
J
Add lines G and I.
Multiply by the Derating Factor
1. Total does not include isolator devices or accessory bases.
2. If using 24 VDC aux power only. No standby or alarm current for battery calculation if using 24 VAC, 120 VAC or 240 VAC.
3. If using door holders, you do not need to consider door holder current for alarm/battery standby, because power is removed during
that time. However, during normal operation, door holders draw current and must be included in the 6.0A total current that can be
drawn from the panel.
4. Use next size battery with capacity greater than required.
5. The FACP can only support 2 devices w/LED's on. This current draw has been added to the panels alarm current.
3.7.5 Maximum Battery Standby Load
Table 3.5 and Table 3.6 show the standby load calculations for the IFP-300 based on 24 and 90 hours of standby. The standby load calcu-
lations of line D in the Current Draw Calculation Worksheet must be less than the number shown in Table 3.5 and Table 3.6 for the
selected battery size, standby hour and alarm time. The numbers below have a built in 20% de-rating factor for the battery amp-hour
capacity
IFP-300 / IFP-300ECS Manual P/N LS10145-001SK-E:B 12/18/2017
Number of
Device
Devices
Refer to devices manual for current rating.
4
Table 3.4 Current Draw worksheet for SD Devices
Rechargeable 24 hr Standby,
Battery Size 5 mins. Alarm
17AH 535mA
18AH 569mA
24AH 769 mA
33AH 1.07A
35AH 1.14A
40AH 1.30A
55AH 1.80A
Table 3.5 :Maximum Battery Standby Loads for 24 Hour Standby
Rechargeable 90 hr Standby,
Battery Size 5 min alarm
33 AH N/A
40 AH 347mA
Table 3.6 Maximum Battery Standby Loads for 90 Hour Standby*
Current per Device
Alarm/Standby:
Alarm/Standby:
24 VDC One input circuit:
Both input circuits: 30 mA
Alarm:
Alarm:
Alarm:
Alarm:
Total standby AH
Total alarm AH
Total ampere hours
required
24 hr Standby,
15 min alarm
473mA
506mA
706mA
1.01A
1.07A
1.24A
1.74A
90 hr Standby,
15 min alarm
N/A
331mA
Standby
Current
mA
mA
mA
mA
15 mA
mA
mA
mA
mA
mA
A
H
AH
AH
x 1.25
24 hr Standby,
20 min alarm
442mA
475mA
675mA
975mA
1.04A
1.21A
1.71A
90 hr Standby,
20 min alarm
N/A
322mA
Alarm
Current
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
A
H
AH
22