Potter PFC 2000RC, Installation, Operation And Instruction Manual, Page: 19 / 28

19
PFC 2000RC • 5403521-REV N• 3/03
Use a battery with a higher AH rating than Required AH
INACTIVE CIRCUITS
All inactive alarm and supervisory initiating device circuits and indicating appliance circuits must have the end-of-line resistor
installed on the panel terminals. On circuits that have four terminals, this resistor must be on the outside two terminals.
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
x .001
x____
x .001
÷__
÷ .85
TABLE 1 CURRENT REQUIREMENTS
Module/Device Standby mA Alarm mA
PFC 2000RC 85 240*
*Includes one zone short circuit current.
TABLE 2 SECONDARY POWER SUPPLY REQUIREMENTS
NFPA Standard Standby Time Alarm Time
NFPA-72 National Fire Alarm Code
• Central Station Systems 24 hrs. 5 mins.
• Local Systems 24 hrs. 5 mins.
• Proprietary Systems 24 hrs. 5 mins.
FMRC 1011 & 1012, Deluge & Pre-action Systems 90 hrs. 10 mins.
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
Total mA
Convert to A
Total A
Multiply by hours from Table 2
Total Standby AH
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