Installation Guide

1-2014 3. Step-By-Step Outline of Installation
3.7.1.1 Main Wiring
WARNING
Refer to the requirements of The National Electrical Code (NFPA No. 70) for all AC
wiring connections.
For access to the wiring connection terminal block (TB2):
• Open the top of the generator set
• Swing the service door wide open, or gently lift up on each side of the front cover to
remove it completely
• Remove the finger guard cover from the terminal block compartment
Connections:
• Consult the local electric code for wire size (L1, L2, N and GND). Wire size is determined
by the length of the run.
• Connect them to the AC output terminal block (TB-2)
• Torque the terminals per the table on the side of TB-2
• The wires must be routed to the transfer switch in approved liquid-tight conduit
• The conduit can be stubbed up through the bottom stub-up opening or connected to
the conduit opening on the side of the generator set
• If the stub-up opening is used, fill in the stub-up opening with duct seal or mastic tape
to keep out insects and rodents
CAUTION
AC wiring can induce false signals in control and communications wiring. Do not route
in the same conduit.
3.7.2 Grounding
Use the Typical System Grounding One-Line Diagrams in this section to be sure that the
generator set, transfer switch, power supply wiring and all connected electrical equipment are
bonded to a common grounding point in accordance with the applicable codes and standards.
WARNING
The generator set grounding terminal (TB2-4) must be connected to the grounding terminal in the
transfer switch. Do not provide a separate grounding rod for the generator set.
NOTICE
Generator neutral is not grounded at the generator set, but at the common system grounding
point.
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