Power Supply Calculations
64
Document #51003 Rev.E 01/11/02 P/N 51003:E
Notes:
1.
Up to 12 AH batteries can be located in the MS-9200 backbox
2.
Batteries larger than 12 AH up to 18 AH require the Fire•Lite BB-17F battery box
3.
When an MS-9200 main circuit board is installed, which allows disabling of FACP battery charger by cutting
JP1, the CHG-120F Battery Charger for 25 AH to 100 AH batteries (requires separate housing)
TABLE A-4:
Battery Calculations
Standby Load
Current (amps)
[ ]
X
Required Standby Time in Hours
(24 or 60 Hours)
[ ]
= __________
Alarm Load
Current (amps)
[ ]
X
Required Alarm Time in Hours
(i.e. 5 minutes = 0.084)
[ ]
= __________
Add Standby and Alarm Load for Required Ampere Hour Battery = __________
Multiply by the Derating Factor or 1.2 X 1.2 __________
Total Ampere Hours (AH) Required = __________
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