1315-200 Battery Separator 12V W AUX start 200 amp

The 1314-200 (unidirectional) and 1315-200 (bidirectional) are 200A battery separator modules with an integrated relay for 12V systems. The units monitor both the main and auxiliary battery banks. If the main battery (for the 1314-200) or either battery bank (for the 1315-200) is above the connect threshold, the relay connects the two banks together. If the main battery (for the 1314-200) or either batteries (for the 1315-200) are below the disconnect threshold the unit will open the relay. The connect threshold is set to a nominal voltage of 13.2V, which would only be reached when the charging system is operating. This will cause the relay to close and the charging system can charge both banks of batteries. The disconnect voltage is set to a nominal 12.8V, which is near the full charge resting voltage of the batteries. This will cause the relay to be opened shortly after the engine is stopped, attempting to preserve 100% of the starting battery capacity for engine cranking. When the engine is started, the start signal causes the controller to check if the auxiliary battery is within about 0.85V of the main battery; if so, the relay contact is closed. Thus providing the starter system with maximum battery voltage available.

1. Mount the Battery Separator in a convenient location near the main battery bank. Do not mount in direct engine

heat. Drill 7/32" holes for ¼-20 self-threading screws and lock washer. For material less than 0.10" add a washer

and nut (not included).

2. Connect one end of a new wire of the proper size (see wire size chart) to the main battery terminal of the Battery

Separator.

3. Connect the opposite end of a wire installed in step #2 to the main battery positive (+) terminal.

4. Connect one end of wire of proper size (see wire size chart) to the auxiliary battery terminal of the Battery

Separator.

5. Connect the opposite end of the wire installed in step #4 to the auxiliary battery positive (+) terminal.

6. Make sure the auxiliary battery is properly grounded to the vehicle chassis.

7. Ground Connection. Connect a #14 gauge wire between chassis ground and the Battery Separator ground

terminal. This may momentarily activate the Battery Separator. This is normal.

8. Auxiliary Start Connection (optional). Automatic operation. Connect a #14 gauge wire from the start position of

the ignition switch to the Start terminal of the Battery Separator. Make this connection at the ignition switch. This

wire should only have voltage when the ignition switch is in the start position. Note: The start signal must be able

to produce at least 3V* in order to provide automatic boost, see connection diagram above for manual operation

option.

9. Lamp Connections (optional). Connect a #14 gauge wire from the Lamp terminal of the Battery Separator to one

end of an indicator lamp (250mA maximum current draw). Connect the opposite end of the lamp to the chassis

ground. This lamp will illuminate when the auxiliary start function is activated.

10. Checking the Operation: The Battery Separator should now be operational. Start the vehicle or apply a charge

to the main battery. Once the main battery rises to 13.2V* the Battery Separator should activate. Turn off the

vehicle or remove the charge to the main battery. The Battery Separator should disconnect the auxiliary battery

once the voltage on the main battery drops below 12.8V*.

11. If a model 1315-200 is used, apply a charge to the auxiliary battery. When auxiliary voltage rises above 13.2V*,

the Battery Separator should activate. Remove charging unit, the Battery Separator should open when auxiliary

battery is less than 12.8V*.

12. The auxiliary start function should activate the Battery Separator if the main battery voltage is lower than the

auxiliary battery. The start terminal must see at least 3V* to activate. The auxiliary battery must read at least

10V*.