DIAGRAM: Charging with Parallel Controllers

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IMPORTANT: This is not intended to be a complete system diagram; fusing, discon-

nects, and grounding should comply with local electric codes.

Notes:

Two (or more) Morningstar charge controllers can be paralleled to charge the same battery bank.•

For best performance:•

Each controller should be connected to its own solar array1.

Each controller should be set to the same charging program/setting2.

If an RTS (Remote Temperature Sensor) is to be used, each controller must have its own RTS 3.

(temperature sensors cannot be shared between controllers)

If the controller(s) has a Battery Sense connection, install Battery Voltage Sensing wires so 4.

that battery voltage is measured accurately across all controllers.

The diagram can be applied to any Morningstar controllers.•

For detailed installation information, please consult the respective product manuals.•

+ -

PV Array

Batt

Bank

SunSaver Controller

Load

Battery +

Battery -

Array 2 +

Array 2 -

GND

+ -

PV Array

Array 1 +

Array 1 -

Load -

Load +