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3.2.9 Installation Tips
3.2.9.1 Off-Grid Installation Tips
Sol-Ark 30K-3P-208V will automatically operate in Off-Grid Mode without
the grid (under the same power priority as TOU)
A. Limiter Sensors are not required for completely Off-Grid installs unless
you use Grid Peak Shaving with a Gen connected to the Grid input
terminal.
B. The Grid input Terminal Block on the Sol-Ark should be used as the
Generator input (up to 54kW generators) so that you may maintain Smart
Load output capability when off-grid. Therefore, you will use Grid Charge
(default) in the Battery Setup/Charge menu to enable the generator’s
ability to charge the batteries. Enable “GEN connect to Grid Input,” as
shown on the right.
C. When off-grid, there is no need for a transfer switch: connect the load
output of the Sol-Ark to the whole home/building
D. Do not use Grid Sell or Limited Power to Home Modes Off-Grid. Only
Limited power to load (default)
E. The Auto Generator start functions as a 2-wire switch (closes the
circuit when needing charging)
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Verifying proper sensor direction:
• Any loads in the home will show a positive HM (+) value in Watts.
• Turning on solar panels and enabling Grid Sell should show a negative HM (-) in Watts if
you are producing more power than the loads are consuming.
• If you turn on Limited Power to Home mode, then HM: ~0 Watts to zero the meter
(system matches the loads to within 99%).
If you installed limiter sensors (CTs) for Limited Power to Home selling mode, verifying
the proper sensor placement and direction is critical. Remove one sensor from the main
L1 connection, and the power should drop to 0W.