©
2017 Sensata Technologies
11
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 temp rating of 167°F (75°C).
• Ensure all conductor insulation is of a type that is approved for the
voltage, operation, temperature and location of use.
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
