August 3, 2019 23
Off-Grid Install Tips
• Limiter Sensors are not required for completely Off-Grid installs.
• The Grid input breaker on the Sol-Ark should be used as the Generator
input (4-30kW generators) so that you maintain Smart Load output
capability when off-grid. Smart Load will allow you to run high power non-
essential appliances (hot water, dehumidifier, heat pump, irrigation
pump) on solar power instead of batteries. Therefore, you will use Grid
Charge (default) in the Battery Setup/Charge menu.
• When off grid there is no need for a transfer switch, simply connect the
load output of the Sol-Ark to the whole home.
• Do not use Grid Sell or Limited To Home Modes. Only Limited power to load (default).
• The Auto Generator start functions as a 2-wire switch (closes the circuit when needing charging)
o Auto Genstart will be triggered when the battery voltage or
percent reaches the level programmed in the battery setup menu.
Then once triggered the generator will continue to charge the
batteries until they are about 95% full (this percentage is not
programmable) before turning the generator off.
• Under setup for Grid/Sell Control, select General Standard and “GEN connect to Grid Input”. Then go to
Grid/Grid input to widen the input frequency range to 53-65Hz to work with any frequency generator.
• If you are using a small portable generator, you may need to purchase an electrical filter from us to clean up the
noisy power from the generator enough for the Sol-Ark to use it.
• If you would like to use a wind turbine in conjunction with Sol-Ark 8K, the turbine must have a 48V charge
controller with a dump load as to prevent overcharging of the batteries. Simply connect the charge controller on
the turbine to the battery bank the Sol-Ark is using and the turbine will help charge your batteries.
• Don’t forget to set the Battery capacity and proper charge rates.
Grid-Tie / No Battery Install Tips
• Under Battery setup, select no Battery (or system will beep).
• Note: full system power cycle is required when changing between battery
and no battery settings.
• Under Grid Setup, select Grid Sell.
• Touch Battery Icon to see the Detailed Volts View to verify your inputs & outputs.
• Note: If Rapid Shutdown is required, external 12V is required for transmitter when no batteries are used.
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