Installation and Operation Manual
54
Appendix-D: Battery Calculations
Total System Currents Calculations
Table 20 System Currents Calculation
The main AC branch circuit connection for Fire Alarm Control Unit must provide a dedicated continuous
power without provision of any disconnect devices. Use #12 AWG wire with 600 volt insulation and proper
over-current circuit protection that complies with the local codes. For specifications, refer to the
Specifications and Features section.
Functional Unit's Currents (All currents are in ampere)
Field Devices Currents (All currents are in ampere)
The total quantities of each loop must <= 252. The total current of field devices per loop is 100 mA @standby,
and 220 mA @alarm.
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