Briggs & Stratton 40220 - Manual (Page 17)

INSTALLATION
17
WIRE CONNECTIONS
Recommended Torque Values
Torque all wire connections/fasteners to values recommended in
Figure 10. Suitable for copper wire of 60°/75°C rating.
Generator AC Connection System
A single-phase, three-wire AC connection system is used in
the Home Standby Generator. The stator assembly consists
of a pair of stationary windings with two leads brought out of
each winding. The junction of leads 22 and 33 forms the
neutral lead. A complete schematic and wiring diagram can
be found on pages 26-27.
NOTE: Neutral is not bonded to ground at generator.
Grounding the Generator
Ground the Home Generator System per applicable codes,
standards, and regulations. The GND lug is located in the
disconnect box.
Generator Control Circuit Connection
Control circuit interconnections consist of "240V AC Utility"
leads. These two leads must be routed in conduit. Control
lead functions are briefly described as follows:
• Leads deliver utility power to the generator’s circuit board,
optional battery warmer and oil heater and charge the
battery.
Using installer-supplied minimum 300V, 14 AWG copper
wire, connect control circuit terminals in the disconnect box
to the Transfer Switch.
Remote Diagnostic LED Plate
The light on the remote LED plate is referred to as the
Diagnostic LED. The LED will stay lit indicating the generator is
in ready mode and will turn on and off in a series of blinks if
certain faults are detected in the Home Standby Generator. A
mounting plate is supplied so that it can be installed at a
convenient indoor location. The owner will use it to observe
the status of the Home Standby Generator. Consult with the
owner for a convenient location.
To install the remote diagnostic LED plate:
• Mount installer-supplied electrical box to wall.
• Using installer-supplied wire, connect the remote LED
leads to the “Remote Status Light” in disconnect box.
NOTE: LED leads are polarity sensitive.
• Attach mounting plate to electrical box.
Refer to the section “Fault Detection System” on pages 21-22
for operation.
BEFORE INITIAL START-UP
Engine Oil
This engine is shipped from the factory filled with the
recommended oil. Before starting the engine, check oil level
and ensure that engine is serviced as described in the engine
operator’s manual.
Oil Considerations
Your Home Standby Generator is equipped with an engine
that has been pre-run at the factory and does not require the
traditional “break-in” procedure.
The generator is filled with synthetic oil (API SJ/CF 5W-
30W). This allows for generator operation in the widest range
of temperature and climate conditions.
NOTE: The use of synthetic oil DOES NOT alter the required
oil change intervals described in the engine operator’s
manual.
CONNECTIONS: Torque Value
In Main Distribution Panel:
Refer to panel manufacturer specs
In Disconnect Box:
240V AC Utility 5 in-lb
Engine Start 5 in-lb
Remote Status 5 in-lb
Generator 17 in-lb
Ground 40 in-lb
Circuit Breakers:
Refer to circuit breaker manufacturer specs
Figure 10 — Recommended Torque Values
NOTICE
Any attempt to crank or start the engine before it has been
properly serviced with the recommended oil will result in
equipment failure.
• Refer to engine manual for oil fill information.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.