Installation manual

3. Step-By-Step Outline of Installation 4-2010
3.6.1 AC Power Supply Connections
WARNING: Electrical connections must be made by a licensed electrician. Improper
installation can lead to electrocution and damage to property.
WARNING: Automatic startup of the generator set during installation can cause severe
personal injury or death. Push the control switch OFF and disconnect the
negative (-) cable from the battery to keep the generator set from starting.
3.6.1.1 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:
· Use minimum 8 AWG 75 °C conductors for the four AC power output wires (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.
3.6.2 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.
NOTE: Generator neutral is not grounded at the generator set, but at the common
system grounding point.
WARNING: Contact with electrical equipment can result in severe personal injury or
death. It is extremely important that bonding and equipment grounding be
properly done. All metallic parts that could become energized under
abnormal conditions must be properly grounded.
18 A029V088 (Issue 2)