ii. Ensure 240Vac L1 and L2.
iii. Check Neutral and Ground are ~0V AC.
c. Check Battery voltage
i. Turn on battery switch (if using a Lithium battery).
ii. Turn on the built-in battery disconnect in the user area of the Sol-Ark.
iii. Voltage should be 45Vdc-57Vdc.
d. If all checks out, Turn on Breakers for Grid and Load, Turn PV Disconnect knob to "On"
i. Note: (If PV is backwards: Sol-Ark will show a voltage of 0 for PV)
e. System will boot up with power from PV, Grid, or ON/Off Batt.
f.
Press the ON/OFF Button on the front, light should come on.
g. If you installed limit sensors for Limited To Home selling mode, it is critical you verify the proper sensor
placement and direction. (Auto learn function avoids this section, function can be found under the
advanced tab of the basic setup menu in settings).
i. Using AC multi-meter, verify L1 voltage on AC in/out is 0Vac with main L1 connection in panel.
Same for L2.
ii. To verify sensor connections to Sol-Ark, try removing one sensor from the main L1 connection.
The power should drop to 0W.
iii. 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%).
14. Basic Setup
a. Display: Auto dim must be enabled for LCD screen to be covered by warranty. Color LCD screens dim if
left on continuously for years.
b. Time: Set date and time for the system
15. Programming Battery Settings
a. Battery Capacity
i.
This allows Sol-Ark to know the size of the battery bank. The system is also self-learning as batteries age.
ii. Main Menu → System Settings → Battery Setup → Batt → Batt Capacity
b. Use Battery Voltage or % Charged
i.
Use whatever you are comfortable with. Most installers prefer voltage, while most homeowners prefer
% Charged. (Note: if Lithium BMS is selected but not present, Sol-Ark will force Voltage mode)
c. Battery Charge & Discharge Current
i.
For a list of settings for commonly used batteries see the application note section of this manual.
ii. For AGM and Flooded, we recommend Ah battery size x 20% = Charge/Discharge amps
iii. For Lithium, we recommend Ah battery size x 50% = Charge/Discharge amps
iv. For Gel, follow manufacturer's instructions.
v. When Off Grid, The Sol-Ark will shut down if Max discharge current is exceeded for 10 seconds.
d. Battery Type
i.
Navigate to the charge menu and set the values appropriate to your battery chemistry. The owner's
manual is good reference for lead acid batteries.
ii. Main Menu → System Settings → Battery Setup → Charge
e. Supported Battery Chemistries (48V configuration required for all chemistries)
i.
Lead Acid
▪
AGM, Gel, Wet
ii. Lithium
▪
NMC, LiPo4
February 3, 2020
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