Potter PFC-4410RC User Manual
Page 86
86
PFC-4410RC • 5403550 • REV Q • 11/12
Secondary Power Supply Requirements: Table 2
Service Use
Standby Time
Alarm Time
NFPA 72
• Central Station (PPU)
24 hrs.
5 mins.
• Local
24 hrs.
5 mins.
FMRC 1011 and 1012, Deluge and Pre-action Systems
90 hrs.
10 mins.
Where requested by FM or others.
90 Hours is not a UL requirement.
Calculation Table
1
2
3
4
5
6
Module/Device Quantity Standby mA Per Unit Total Standby Current Alarm mA Per Unit Total Alarm Current
Current Requirements: Table 1
*Add 23 mA plus current requirement of all devices connected for each output programmed as Trouble Bell
**Includes one zone short circuit current.
x 0.001
x 0.001
Total mA
Convert to A
Total A
5 min/12 or 10 min/6
Total Alarm AH
+ Total Standby AH
Total AH
Efficiency Factor
Required AH
Total mA
Convert to A
Total A
Multiply by hours from table 2
Total Standby AH
÷ ___
Use a battery with a higher AH rating than Required AH
÷ 0.85
x ___
Module/Device
Standby mA*
Alarm mA*
PFC-4410RC
121
274
RA-4410RC
11
13