Briggs & Stratton FORTRESS Series Installation And Operation Manual page 22

Grounding the Generator
Unless mandated by local code, additional chassis grounding
to earth at the generator is not required. Any grounding
at generator must use metal piercing lock washers (or
equal), listed terminals installed per terminal supplier's
instructions, and comply with national electrical codes and
local requirements.
Power Connections from the Generator to the
Transfer Switch
WARNING
Failure to isolate generator from utility power could
result in death or serious injury to electric utility workers due
to backfeed of electrical energy.
• Use a listed transfer switch to connect to a building
electrical system.
Utility Circuit Connection
22
240V Utility leads must be routed in conduit. The 240V Utility
leads deliver power to the generator's circuit board, optional
battery warmer and optional oil warmer. This power also
charges the battery. When the power on these leads is lost,
the generator will start. Using the installer-supplied minimum
300V, 14 [2.5 mm2] AWG wire, connect each control circuit
terminal in the generator (25 and 26) to the fuse block in the
automatic transfer switch.
Generator Power Connection
Using the installer supplied minimum 300V wires and the
table located in the Electrical Field Connections section,
connect generator power output L1, L2, neutral (N), and
ground to the corresponding L1, L2, neutral (N) and ground in
the transfer switch.
NOTICE Refer to the National Electric Code for correct
electrical field connections and wire size calculations.
Final Installation Considerations
Engine Oil
NOTICE Any attempt to crank or start the engine before it
has been correctly filled with the recommended oil will result
in equipment failure and service codes.
• Refer to Maintenance in the Operation section of this
manual for oil fill information.
• Damage to equipment resulting from failure to obey this
instruction will void the engine and generator warranty.
This engine is shipped from the factory pre-run and filled
with synthetic oil (API SJ/CF 5W-30). This allows for system
operation in a wide range of temperature and climate
conditions. Before starting the engine, check the oil level as
described in the Maintenance section of this manual.
The use of synthetic oil does not alter the required oil change
intervals described in the Operation section of this manual.
For operation in temperatures below 30°F (-1°C), the use
of fully synthetic oil (minimum API SJ) of viscosity 5W30 is
required.
Battery
WARNING
Storage batteries give off explosive hydrogen gas
during recharging. Slightest spark could ignite hydrogen
and cause explosion, resulting in death or serious injury.
• DO NOT dispose of battery in a fire. Recycle battery.
• DO NOT allow any open flame, spark, heat, or lit
cigarette during and for several minutes after charging a
battery.