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13. INVERTER START-UP AND SHUT-DOWN PROCEDURE
13.1 START-UP
Follow the steps outlined below to ensure proper start-up and shut-down procedures to avoid
potential component damage.
1. Ensure all circuit breakers are in the open (OFF) position.
2. Using a multimeter, check the battery bank to ensure no voltage (DC) is present.
3. Check the external PV Isolator Switch via multimeter to ensure the voltage (DC) is in the MPPT’s
optimal operating range.
4. If utilizing AC input, double check each hot line to neutral coming into inverter to ensure voltage
is in operating range of the unit.
5. Upon confirming all voltages are within the inverter’s operating range, close (ON) the battery
breaker on the front of the unit. Close the external battery breaker between bank and inverter
(if equipped).
6. Begin powering batteries on one at a time, starting with the master, in ≈5 second intervals.
7. Close the external PV isolator switch (if equipped). Close PV breaker on the side of the unit.
8. If using AC input, close external breaker between panel and inverter. Next, close the GRID
breaker on the front of the unit.
9. Power on the inverter via the power switch on the side of the unit.
10. Close external AC Output breaker (if equipped) going to panel. Turn ON EPS Output (AC Output)
switch on side of unit to begin powering loads.
13.2 SHUT-DOWN
1. Turn OFF EPS Output on side of inverter.
2. Open (OFF) GRID/GENERATOR breaker on front of unit.
3. Open LOAD breaker on front of unit. Open external AC output breaker (if equipped).
4. Open external PV isolator switch. Open PV breaker on side of the unit.
5. Open Battery Breaker on front of unit. Open external battery breaker (if equipped).
6. Power down batteries one at a time starting with the master.
7. Turn power switch on side of unit to OFF.
Never disconnect battery, PV, or AC input power under loads. If there is an
emergency and users must shut down the inverter, please follow the steps outline below.
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