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Installation
3–22 976-0043-01-02
Procedure for Single Inverter Systems
Before starting this procedure, please review Figure 3-10, “DC Terminal
Connections on the Inverter” on page 3–20 and Figure 3-11, “Battery
Cable Connection” on page 3–21 for the locations of the terminals and
details on attaching positive (+) and negative (–) cables to terminals on
the inverter DC end. Ensure the unit is properly grounded before
proceeding.
While performing the following procedure, please refer to Figure 3-13,
“DC Connections to a Single Inverter” on page 3–23 .
Use the following procedure to connect the battery (or battery bank)
to the inverter.
1. Connect POSITIVE cables:
a) Connect one cable from the battery POSITIVE terminal to a
circuit breaker in the DC disconnect (torque to manufacturer’s
recommendations). The DC disconnect should be located as close
to the batteries as possible.
b) Connect another cable from the other side of the same circuit
breaker to the inverter’s POSITIVE (+) terminal.
2. Connect a NEGATIVE cables:
a) Connect one cable from the battery NEGATIVE terminal (torque
to manufacturer’s recommendations) to the ground bond in the
DC disconnect.
b) Connect another cable from the ground bond to the inverter’s
NEGATIVE (–) terminal.
3. Ensure the correct polarity of the cables with a DC voltmeter (DVM).
4. Use an insulated 1/2-inch wrench or socket to tighten the 5/16 SAE
nuts to 10-15 foot/lb for each inverter input terminal.
5. Apply antioxidant paste to the battery terminals, if desired.
6. Install the battery terminal covers (if used)—red for positive, black
for negative—over the inverter DC terminals and secure with the
screws and washers provided.