Honeywell Farenhyt Series - 3: Current Draw Worksheet for SK SLC Devices

IFP-300 / IFP-300ECS Manual P/N LS10145-001SK-E:B 12/18/2017 16
1. The FACP can only support 5 devices w/LED’s on. This current draw has been added to the panels alarm current.
2. IDP-Beam-T draws a maximum of 500mA from Auxiliary power only when the test feature is used. This should be considered when
determining auxiliary power capacity but not calculated into current requirements for day to day operation.
3. The IDP-PhotoR is sold separately from the DNR. Current draw for the DNR + IDP-PhotoR is calculated by increasing the “Number
of Devices” column for each IDP-PhotoR used with a DNR.
4. The DNR housing does not include a Relay circuit board. If a relay is needed, be sure to add one to the IDP-Relay & IDP-PhotoR
“Number of Devices” column for each DNR used for correct current calculations.
5. 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.
6. Use next size battery with capacity greater than required.
7. Total does not include isolator devices or accessory bases.
3.7.3 Current Draw Worksheet for SK SLC Devices
Use Table 3.3 to determine current requirements during alarm/battery standby operation when SK SLC devices are installed. The IFP-
300 FACP supports up to a total of 300 SLC devices, consisting of any combination of Sensors and Modules.
6
Notification Appliance Circuits Refer to devices manual for current rating.
5495/5499 Power Supply 24 VDC One input circuit: 15 mA
mA
Both input circuit 30 mA
mA
Alarm: mA
mA
Alarm: mA
mA
Alarm: mA
mA
Alarm: mA
mA
C
Notification Appliances Current
mA
D
Total current ratings of all devices in system (line A + line B + C)
mA mA
E
Total current ratings converted to amperes (line D x .001):
AA
F
Number of standby hours (24 or 60 for NFPA 72, chapter 1, 1-5.2.5):
H
G
Multiply lines E and F. Total standby AH
AH
H
Alarm sounding period in hours. (For example, 5 minutes = .0833 hours)
H
I
Multiply lines E and H. Total alarm AH
AH
J
Add lines G and I.
6
AH
Multiply by the Derating Factor
x 1.25
Total ampere hours required
Device
Number of
Devices
Current per Device
Standby
Current
Alarm
Current
Table 3.2 Current Draw Worksheet for IDP SLC Devices
Device
Number of
Devices
Current per Device
Standby
Current
Alarm
Current
For each device use this formula: This column X This column = Current per number of devices.
Fire Panel (Current draw from battery) 1 Standby: 190 mA
190 mA
Alarm: 250 mA
250 mA
Table 3.3 Current Draw Worksheet for SK SLC Devices