©
2015 Sensata Technologies
11
2.0 Installation
2.3
Wiring the Inverter – General Requirements
This section describes the requirements and recommendations for wiring the
CSW Series inverter. Before wiring the inverter, carefully read all instructions.
WARNING:
Wiring should meet all local codes/standards and be
performed by quali
fi
ed personnel (i.e., licensed electrician).
2.3.1 Wiring
Requirements
•
All conductors that are at risk for physical damage must be protected
by tape or placed in a raceway.
•
Always check for existing electrical, plumbing, or other areas of
potential damage prior to making cuts in structural surfaces or walls.
•
Where DC wiring must cross AC or vice-versa, try to make the wires at
the crossing point perpendicular (90 degrees) to one another.
•
DC overcurrent protection must be provided as part of the installation.
•
Use only copper wires with a minimum temperature rating of 75° C
(194° F).
2.3.2 Torque
Requirements
• All wiring to the DC terminals and DC ground connection should be
checked periodically (once a month) for proper tightness. For the torque
requirements, refer to Table 2-1. If you don’t have a torque wrench,
ensure all connections are tight.
Table 2-1, DC Terminal - Torque Requirements
Inverter
Model
DC
Terminals
Torque
Requirements
Torque Wrench
Size Needed
CSW412
Hex Cap
screws
52 to 58 lbf-in
(5.9 to 6.5 N-m)
12 mm wrench
CSW1012
M6 x 1.0
Hex nuts
79 to 96 lbf-in
(8.9 to 10.9 N-m)
10 mm wrench
CSW2012
M8 x 1.25
Hex nuts
16 to 21 lbf-ft
(22 to 28 N-m)
13 mm wrench