©
2017 Sensata Technologies
15
Installation
Info:
The DC terminal/Hex nuts on the CSW1012 and CSW2012
are made of stainless steel, which has a high likelihood of galling
or thread seizing while being tightened—causing the bolts to
strip or to snap/break off. Use an anti-seize lubricant, tighten the
fasteners slowly (@low rpms) without interruption, and apply only
light pressure.
2.4.5 Wiring the Battery Bank
WARNING:
Lethal currents will be present if the positive and
negative cables attached to the battery bank touch each other.
During the installation and wiring process, ensure the cable ends
are insulated or covered to prevent touching/shorting the cables.
Info:
DO NOT connect the DC wires from the battery bank to
the inverter until 1) all DC wiring is complete, 2) the correct DC
overcurrent protection has been installed, and 3) the correct DC
voltage and polarity have been veri
fi
ed.
Depending upon the voltage of the batteries (6 or 12 VDC), the batteries
must be wired in series, parallel, or series-parallel to provide the correct
voltage. The interconnecting DC wires must be sized and rated exactly the
same as those used between the battery bank and the inverter.
Place the batteries as close as practical to the inverter, preferably in an
insulated and ventilated enclosure. Allow adequate space above the batteries
to access the terminals and vent caps (as applicable). Also, allow at least 1”
(2.5 cm) of space between the batteries to provide good air
fl
ow. DO NOT
mount the batteries directly under the inverter.
CAUTION:
Install batteries in a well ventilated area. Batteries
can produce explosive gasses. For compartment or enclosure
installations, always vent batteries to the outside.
Info:
To ensure the best performance from your inverter system,
batteries should be of the same size, type, rating, and age. Do not
use old or untested batteries.
2.4.6 Wiring the Inverter to the Battery Bank
CAUTION:
The inverter is NOT reverse polarity protected—if the
positive terminal of the battery is connected to the negative terminal
of the inverter and vice versa, severe damage to the inverter will
occur and this will void the warranty. Before connecting the DC
wires from the batteries to the inverter, verify the correct battery
voltage and polarity using a voltmeter. If necessary, color code
the cables (with colored tape): red for positive (+), and white for
negative (-) to avoid polarity confusion.
Info:
The DC overcurrent device (i.e., circuit breaker or fuse) must
be placed in the positive (red) DC cable line between the inverter’s
positive DC terminal and the battery’s positive terminal (red)—as
close to the battery as possible. For maximum protection, install it
within 18 inches (45 cm) of the battery.