Installation Manual: 22.8kWh

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4.5.5 – Limiter Sensor Wiring Connections

The Sol-Ark AccESS installation may include limiter sensors. Limiter sensors are required in the following

applications:

• Limited to Home mode

• Time of Use Selling mode

• Systems that include both a generator and grid connection

Install limiter sensors on incoming electrical service wires L1 and L2, at the top of the main house breaker panel

(refer to Sol-Ark’s diagram within their manual).

Verify the limiter sensors’ proper sense and direction by adhering to the Sol-Ark manual’s “Testing and

Powering Up Sol-Ark” instructions in the Sol-Ark Manual. If applicable, perform the following checks after

completing Steps 1 and 2 outlined in the Basic Functional Test Section 4.5.6 below:

If MCU SW = 1654 or higher, an auto learn function avoids all this.

• Using AC multi-meter, verify L1 voltage on AC in/out is 0Vac with main L1 connection in panel. Same

for L2.

• To verify sensor connections to Sol-Ark, try removing one sensor from the main L1 connection. The

power should drop to 0W.

• To verify proper sensor direction, with any loads in the home, the HM: +watts will be positive. If you

turn on solar panels and turn enable Grid Sell, you should see HM: -watts if you are producing more

power than the loads are consuming. And if you turn on limited power to Home mode, then HM: ~0

watts to zero the meter (system matches the loads to within 99%).

From p the Sol-Ark-12K Manual:

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