Please read Instructions carefully prior to installation.
Choice of light blue connection IGN:
- With alternators (smart alternators) that cut off charge temporarily, connect IGN wire to Car Ignition (Terminal 15). When the alternator turns off, the DBM20A keeps charging until the Main voltage drops below 11.9V or the alternator kicks in again.
- With all other alternators do not connect the light blue (IGN), DBM20A stops charging when the Main voltage drops below 12.7V. The DC/DC Charging automatically starts when Main voltage is higher than 13.3V.
- If needed connect the light blue IGN wire on Car Ignition (Terminal 15), otherwise leave unconnected.
- Connect the relay with the green wire (terminal 86) and a GND wire (terminal 85).
- Connect the power wires (minimal 25mm2) between plus battery main and relay and plus battery aux and relay.
- Connect all black GND wires.
- Connect now the red wire ((+) battery main) (ATTENTION: system is starting up -> refer to page 6 Programming the system). (Continue installation only after System has switched to Stand-By mode).
- With a IBS-DBMLSK connect the Link Push-Button to the yellow wire and make the GND connection as shown above.
- connect the blue wire ((+) battery aux) at last.
If relay wasn’t found due to missing aux connection while programming follow the steps in Relay not found – what now?.
For a safe installation it is necessary to install the fuses in the red wire path ((+) battery main: 30A) and in the blue wire path (+) battery aux: 30A)!
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