SA-15K Install Guide and Owner Manual

August 19
th
, 2022 35
Discharge
Shutdown V: battery voltage at which the inverter will shut
down (battery symbol on the home screen will turn red)
Low Batt: Low battery voltage (battery symbol on the home
screen will turn yellow)
Restart: battery voltage at which AC output will resume
Batt Resistance: used in % SOC batt calculations
Batt Charge Efficiency: used in % SOC batt calculations
Batt Empty V: sets reserve capacity and improves % SOC
calculations. It is not Batt_I adjusted
(Recommendations: 45V for AGMs, 48V for Lithium Iron Phosphate)
Smart Load (Gen Breaker)
A. This mode utilizes the Gen input connection as an output
that only receives power when the battery exceeds a user-
programmable threshold.
B. Enable "Use gen input as load output" to power high
power loads such as a water heater, irrigation pump, AC
unit, pool pump, etc.
Smart Load OFF Batt
Battery voltage at which the Gen Load will stop receiving power
Smart Load ON Batt
Battery voltage at which the Gen Load will start receiving power
Using Gen load for a water heater, we recommend that only one leg (120V) be connected to the bottom
element. This significantly reduces the power consumption of the water heater while retaining core
functionality (it will heat water, only slower).
Solar Watts is for on Grid
A. The system waits to turn on smart load until enough PV power is produced (when on grid)
AC Coupling Settings (" For AC Coupled Input")
A. To use the Gen input breaker as an AC coupled input, check the "For AC Coupled Input" box (this feature will
also work with "Grid-Tied" Inverters)
B. The meaning of Smart Load OFF Batt and Smart Load ON Batt change in this mode
Smart Load OFF Batt: The SOC at which the AC coupled inverter(s) are shut down
when in off-grid mode
90% recommended
Smart Load ON Batt: The SOC at which the AC coupled inverter(s) are turned on
when in off-grid mode 60%-80% recommended
Gen Load is limited to 100A at 240V (Do not exceed!)
Maximum combined input
(AC+DC) = 34.2kW
19.2kW AC +
15kW DC