AL100UL Installation Guide
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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
(Stand-by Specifications Chart).
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 discharge is 500mA.
Note:
Expected battery life is 5 years; however, it is recommended changing batteries in
4 years or less if needed.
Terminal Identification:
Terminal Legend
Function/Description
AC/AC
Low voltage AC input (16.5VAC/20VA). UL Listed. Class 2 plug-in transformer.
– DC +
12VDC @ 750mA continuous power-limited output.
– BAT +
Stand-by battery connections. Maximum charge rate 500mA.
AC FAIL
NC, C, NO
Indicates loss of AC, e.g. connect audible device or alarm panel. Relay is normally
energized when AC power is present. Contact rating 1A @ 28VDC.
LOW BAT
NC, C, NO
Indicates low battery condition e.g connect audible device or alarm panel.
Relay is normally energized. Contact rating 1A @ 28VDC.
AC
DC
AC F
AIL
LOW BA
T
RL2
RL1
PTC1
IC1
C1
NO C NC
NO C NC
Class 2
Output
16.5VAC, 20VA
Plug-in Transformer
(UL Listed Class 2
Transformer)
750mA 12VDC
Power-Limited Output
Stand-by
Battery
Fig. 1
