Installation Instructions

- 6 - AL1024NK8(D) Installation Guide)
LED Diagnostics:
AL1024ULXB2 - Power Supply Board
Red (DC) Green (AC) Power Supply Status
ON ON Normal operating condition.
ON OFF Loss of AC. Stand-by is battery supplying power.
OFF ON No DC output.
OFF OFF Loss of AC. Discharged or no stand-by battery. No DC output.
PDS8(CB):
LED ON
Green 12VDC Output.
Green and Red 24VDC Output.
Battery Size Calculation Worksheet:
A. AL1024NK8(D) internal current consumption (stand-by) ________________ 0.05 A
B. Load current consumption (stand-by) ________________ A
C. Stand-by time required (hours) ________________ H
D. Battery capacity required for stand-by (A+B)*C ________________ AH
E. AL1024NK8(D) internal power consumption (Alarm) ________________ 0.05 A
F. Load current consumption (Alarm) ________________ A
G. Alarm duration (Hours; 15 Min. = 0.25 Hour) (Alarm) ________________ H
H. Battery capacity required for Alarm (E+F)*G ________________ AH
I. Total calculated battery capacity D+H ________________ AH
J. Battery capacity required I*1.8 (safety factor) ________________ AH
Note: AL1024NK8(D) power supply is designed to work with batteries up to 65AH.
Please note: line [I] must not exceeds 36AH.
You have to reduce either stand-by current consumption or stand-by time in order to comply with requirement.
To determine actual battery size please round line [J] to the nearest larger standard battery size
(e.g. 3.5 AH = 4.0 AH).