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Calculating Current Draw and Standby Battery
B200S Intelligent Sounder Base
SLC Accessories
B200SR-LF Low Frequency Sounder Base
B200S-LF Low Frequency Sounder Base
B224RB Relay Base
RTS151/151 KEY
RA100Z
SLC Isolator Devices
M500X (Isolator Module)
B224BI Isolator Base
Accessories Modules
RA-1000 Remote LCD Annunciator
5824 Serial / Parallel Module
GFPS-6S NAC Expander
5880 LED I/O Module
Wireless Modules
VW-GATE Wireless Gateway
A
Total System Current
Auxiliary Devices
CELL-MOD. CELL-CAB-GWF
B
Auxiliary Devices Current
Notification Appliance Circuits
GFPS-6/GFPS-9 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
Note 1: The Total calculation does not include the Isolator devices or accessory bases.
Note 2: If you use door holders, you do not need to calculate the door holder current for the alarm/battery standby, because the power is
removed during that time. During normal operation, the door holders draw current and must be included in the 2.5A total alarm current (1.0A
for all other conditions that can be drawn from the panel.
Note 3: Use the next size battery with capacity greater than required. ABD-RT2F draws a maximum of 500mA from Auxiliary power only
when you use the test feature. This should be considered when you determine the auxiliary power capacity but not calculated into current
requirements for day-to-day operation. The ASD-PL2FR is sold separately from the DNR. Current draw for the DNR + ASD-PL2FR is
calculated by increasing the "Number of Devices" column for each ASD-PL2FR used with a DNR.
Note 4: The DNR housing does not include a Relay circuit board. If a relay is needed, be sure to add one to the AOM-2RF & ASD-PL2FR
"Number of Devices" column for each DNR used for correct current calculations.
Note 5: The FACP supports only 5 devices w/LED's ON. This current draw has been added to the panels alarm current.
Note 6: UL 268 7th Edition Sensitivity Level Requirements:
The models: ASD-PL3/-IV, ASD-PL3R/-IV, ASD-PTL3/-IV, detectors must be programmed with the following Sensitivity Levels to be
compliant with the UL 268 7th Edition requirements (3% is the Default).
- 1% and 1.5% for Special Applications
- 2%, 2.5% and 3% for Open Area Protection
GWF-7075 Addressable Fire Alarm Control Panel Manual — P/N LS10147-002GF-E:E 06/11/2019
Device
(100 max.)
(50 max.)
(4 max.)
(8 max.)
(8 max.)
2
Refer to devices manual for current rating.
Refer to device manual for current rating.
3
Table 3.3 Current Calculation Worksheet for Velociti Devices (Continued)
Number of
Current per Device
Devices
Standby:
Aux Pwr
Alarm: (high vol)
SLC
Standby
Aux Pwr
Standby:
Alarm:
Aux Pwr
Standby
Alarm (high vol)
SLC
Standby
Standby/Alarm:
Alarm:
Alarm:
Standby/Alarm:
Standby/Alarm:
Standby:
Alarm
Standby/Alarm:
Standby/Alarm:
Standby:
Alarm:
Max current using external supply 40 mA mA
Max current SLC Power
Standby:
Alarm:
Alarm/Standby:
Alarm/Standby:
Alarm/Standby:
Alarm/Standby:
24 VDC
One input circuit:
Both input circuits:
Alarm:
Alarm:
Alarm:
Total standby AH
Total alarm AH
Total ampere hours required
NOTES
Installation Instructions Criteria
Standby
Alarm
Current
Current
.5mA mA
35mA
mA
.3mA mA
1mA mA
125mA
mA
.55mA mA
140mA
mA
.30mA mA
.5mA mA
mA
7.5mA
mA
10mA
mA
.45mA mA
mA
.5mA
20mA mA
25mA
mA
45 mAmA
mA
10 mAmA
mA
35 mAmA
200 mA
mA
mA
24 mA mA
mA
55 mA mA
100 mA
mA
mA mA
mA
mA mA
mA
mA mA
mA
mA mA
mA
15 mA
mA
30 mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
A
A
H
AH
H
AH
AH
x 1.25
AH
17
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