4: Current Draw Worksheet For Sd Slc Devices - Honeywell Farenhyt Series Manual

Prerequisites for Installation
IPDACT-2 IP Communicator
IPDACT-2UD IP Communicator
CELL-MOD/CELL-CAB-SK
HWF2-COM Series
B Auxiliary Devices Current
Notification Devices
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 0.001):
F Number of standby hours
G Multiply lines E and F.
H Alarm sounding period in hours. (For example, 5 minutes = 0.0833 hours)
I Multiply lines E and H.
J Add lines G and I.
Multiply by the Derating Factor
Total ampere hours required
1 The FACP can only support 5 devices with LEDs on. The current draw has been added to the panels alarm current.
2 Total does not include isolator devices or accessory bases.
3 The SK-BEAM-T draws a maximum of 500mA from auxiliary power when the test feature is used. This should be considered when
determining auxiliary power capacity but not calculated into current requirements for everyday operation.
4 Maximum SBUS address capacity is determined by the amount of SBUS bandwidth consumed by each SBUS module. Refer to
Section 4.6.2 for SBUS limitations.
5 If there are door holders in the system, there is no 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 1.8 A total current that
can be drawn from the panel.
6 Use next size battery with capacity greater than required.
3.5.4 Current Draw Worksheet for SD SLC Devices
Use Table 3.4 to determine current requirements during the alarm/battery standby operation when the SD SLC devices are installed. You can
install up to 127 SD devices per panel, in any combination.
For each device, use this formula:
Fire Panel
(Current draw from battery)
26
Device # of Devices
5
Refer to device manual for current rating
6
Table 3.3 Current Draw Worksheet for SK SLC Devices (Continued)
Device # of Devices
This column
Table 3.4 Current Calculation Worksheet for SD Devices
Current per Device
Standby:
Alarm:
Standby:
Alarm:
Standby:
Alarm:
Standby:
Alarm:
Alarm/Standby:
Alarm/Standby:
Standby:
Alarm:
Alarm:
Alarm:
Alarm:
Current per Device
X This column
1 Standby
Alarm:
IFP-300 Series Manual — P/N LS10145-001SK-E:C 4/6/2022
Calculating Current Draw and Standby Battery
Standby
Current
93 mA
136 mA
98 mA
155 mA
55 mA
100 mA
210 mA
290 mA
mA
mA
75 mA
205 mA
mA
mA
mA
Total standby AH
Total alarm AH
Standby
Current
= Current per number of devices.
190 mA 190 mA
250 mA
Alarm Current
mA
mA
mA
mA
mA
mA
mA
mA
mA mA
mA mA
mA
mA
mA
mA
mA
mA
mA mA
A A
H
AH
H
AH
AH
1.25
AH
Alarm Current
1
250 mA