Install Manual

Electrical Connections
Installation Guidelines for 60 Hz Air-Cooled Generators 29
.
Main AC Wiring
NOTE: Main AC wiring must be in accordance with local
jurisdiction and codes.
NOTE: Generator lugs are rated at 167 °F (75 °C),
copper or aluminum.
1. Strip insulation off wire ends. Do not remove
excessive insulation.
2. See Figure 6-1. Loosen lugs at neutral (D), ground
(G), and power wire (mains) terminals (E1, E2).
3. Connect ground wire to ground lug and tighten to
required specification. See Table 6-4.
4. Connect neutral wire to neutral lug if applicable.
Tighten to required specification. See Table 6-4 .
5. Insert power wires (E1 and E2) into their
corresponding lugs. Tighten to required
specification.
6. Verify factory-installed ground array and neutral
connections are properly tightened to 25 in-lbs (2.82
Nm).
NOTE:
Neutral wire must remain connected to keep the
battery charged whether the generator is running or not.
NOTE: Neutral bonding – For installations requiring
neutral to be bonded to the ground, this is done on the
customer connections terminals inside the generator.
See Figure 6-1. Connect a suitably sized wire from
neutral bar (J) to ground stud (F). Tighten ground stud
nut to 35 in-lbs (3.95 Nm). This is normally required
when the generator is the source in a separately derived
system. It is not required when the generator is a backup
source in a utility supplied electrical system with a 2-pole
transfer switch. Installation must be made in accordance
with NEC Articles 250.30 and 250.35(A) if the generator
will be installed as a separately derived system.
NOTE: Tighten all wiring lugs, bus bars, and connection
points to the proper torque specifications.
Conductors of AC and DC circuits, rated 1000 volts
nominal or less, shall be permitted to occupy the same
equipment, cable, or conduit. All conductors shall have
an insulation rating equal to at least the maximum circuit
voltage applied to any conductor within the equipment,
cable, or conduit. See NEC 300.3(C)(1).
Service Entrance Decals
See Figure 2-6. Locate the service entrance-related
decals in the loose parts bag.
• Place the service disconnect decal next to the main
line circuit breaker (generator disconnect).
• Place the service entrance warning decal in an
appropriate location according to the instructions
printed on the decal.
Common Alarm Relay (Option)
Alarms relating to generator and engine performance
appear on the controller and in the Mobile Link™
application (if used). The controller is equipped with a
common alarm relay providing contacts for an optional
customer-supplied external alarm indicator.
The common alarm relay is normally open until an alarm
occurs, triggering the relay to close the contacts.
Terminals for the common alarm relay are provided in the
wiring harness near the controller plug (Wires 209 and
210).
Contact rating is for resistive load only:
Table 6-4. Ground and Neutral Connections (Copper
or Aluminum Conductors)
Refer to national and/or local codes to verify correct wire sizes.
No. Description
Recommended
Wire Size
Torque Spec
1
Power wire
terminals
2/0 to 8 AWG 120 in-lbs (13.56 Nm)
2
Large neutral
lug
2/0 to 14 AWG 120 in-lbs (13.56 Nm)
3 Large ground lug 2/0 to 14 AWG 120 in-lbs (13.56 Nm)
4 Neutral bus bar
4-6 AWG
8 AWG
10-14 AWG
35 in-lbs (3.95 Nm)
25 in-lbs (2.82 Nm)
20 in-lbs (2.26 Nm)
Contact rating 200 mA at 12 VDC