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Installation
2–4 975-0059-01-01 Rev A
Connecting the Battery Bank to the Inverters
The following instructions are illustrated in Figure 2-3.
To connect the battery (or battery bank) to the inverters:
1. Connect POSITIVE cables:
a) 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) a second cable from the same battery POSITIVE terminal to another
circuit breaker in the DC disconnect.
c) a third cable from the first circuit breaker in the DC disconnect to the
L2 inverter POSITIVE (+) terminal.
d) a fourth cable from the second DC disconnect to the L1 inverter
POSITIVE (+) terminal.
2. Connect NEGATIVE cables:
a) one cable from the same battery NEGATIVE terminal (torque to
manufacturer’s recommendations) to the ground bond in the DC
disconnect.
b) a second cable from the same battery NEGATIVE terminal (torque to
manufacturer’s recommendations) to the ground bond in the DC discon-
nect.
c) a third cable from the ground bond in the DC disconnect to the L2 inverter
NEGATIVE (–) terminal.
d) a fourth cable from the ground bond in the DC disconnect to the
L1 inverter 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. After tightening the connections on the batteries, apply antioxidant paste to
the battery terminals, if desired. Do not apply antioxidant paste to the inverter
terminals.
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.