Description
Issue 5 - June 2005 Page 15 of 64 Pages
24 V battery terminals
For continued operation of the controller when the AC supply fails connect two
12 V/1.2 AH lead-acid batteries in series to the battery terminals. If unsealed batteries
are fitted, that could generate hydrogen when charged, drill a vent hole in the top of the
enclosure.
The 24 V battery terminals can also be used for an external 24 VDC input.
WARNING!
Do not connect AC and DC supplies at the same time.
Maintenance inhibit jumper
When the maintenance inhibit jumper is fitted, all relays will go to their normal state and
all alarms are blocked.
Maintenance
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