Installation Instructions

- 6 - AL1024NKA8(D) Installation Guide

Maintenance:

Unit should be tested at least once a year for the proper operation as follows:

Output Voltage Test: Under normal load conditions the DC output voltage should be checked for

proper voltage level.

Battery Test: Under normal load conditions check that the battery is fully charged, check specified

voltage both at the battery terminal and at the board terminals marked [– BAT +] to ensure

that there is no break in the battery connection wires.

Note: Maximum charging current under discharges is 3.6A.

Note: Expected battery life is 5 years; however, it is recommended changing batteries in 4 years or less if needed.

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Fig. 4 - AL1024ULXB2 Board Configuration

4a 4b

BAT FAIL

AC FAIL

- BAT +

+ DC -

AC DELAY