EG4 GRIDBOSS - Configure the Hybrid Inverters

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6.6 CONFIGURE THE HYBRID INVERTERS
As best practice, configure the hybrid inverter(s) before configuring the GridBOSS. When configuring
each inverter, note the following:
• During the initial configuration, use only battery power for the inverters. The GridBOSS should
remain powered off. The inverter grid port cannot be connected directly to the grid.
• Do not install the inverter’s CT clamps since the GridBOSS has internal CT clamps.
• Verify that the battery or battery bank and PV array connected to the inverter(s) are fully
functional.
• If using multiple inverters, verify they are set up in a functioning parallel configuration.
• DO NOT connect the inverter’s load port to the GridBOSS. The inverter’s load port must
remain in the off position.
• DO NOT cable anything to the inverter’s generator port (if equipped). The inverter’s generator
breaker should remain in the off position. All smart load, AC couple, and generator
functionality will be connected to and configured on the GridBOSS.
• Install at least the minimum firmware required on each inverter, as shown in the chart below.
Please refer to the inverter documentation linked below for detailed instructions on installation and
configuration guidance:
INVERTER
MIN. SYSTEM FIRMWARE
MIN. LCD FIRMWARE
12kPV
FAAB-1E1E
V18
18kPV
FAAB-1E1E
V18
FlexBOSS18
FAAB-2021
N/A
FlexBOSS21
FAAB-1E1E
N/A
NOTE:
Verify that each hybrid inverter has at least the minimum required firmware
installed to support connectivity with the GridBOSS. Each inverter uses system
firmware. The 12kPV and 18kPV also use LCD firmware, which supports the
front-panel LCD screen. For more information on updating firmware, see
section 10 of this manual.
18kPV
Inverter
12kPV
Inverter
FlexBOSS21
Inverter
FlexBOSS18
Inverter