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Briggs & Stratton Power Products Backup Power System
Owner’s Manual
12
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 on page 18
in “Checking Oil Level”.
CAUTION!
Any attempt to crank or start the
engine before it has been properly serviced with the
recommended oil will result in an engine failure that
is not covered under warranty.
Oil Considerations
Your Backup Power System is equipped with an engine that
has been pre-run at the factory and does not require the
traditional “break-in” procedure.
In order to provide a greater “backup” capability, the
system is filled with synthetic oil (API SJ/CF 5W-30W).This
allows for system 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 later in the
Maintenance section of this manual.
Battery Connection
The Backup Power System is supplied with a 12 Volt DC
18 Amp-Hour sealed rechargeable battery. It is installed in
the unit and the battery cables are connected at the
factory.The unit’s 15 Amp fuse has been removed for
shipping (this prevents the unit from starting).
CAUTION!
Do Not install the 15 Amp fuse until
all plumbing and wiring has been completed and
inspected. Failure to install the fuse as described in
the Installation Manual could cause the engine to
start.
NOTE: With the battery installed, utility power supplied to
the Automatic Transfer Switch, and the unit in AUTO mode,
the battery receives a trickle charge while the engine is not
running.The trickle charger cannot be used to recharge a
battery that is completely discharged.
Gaseous Fuel System
• Ensure that all fuel pipe connections are tight, secure and
without leaks.
• Ensure that all shutoff valves are OPEN and that
adequate pressure is available.
If you smell ‘raw’ gaseous fuel (natural or LP) near the unit,
immediately turn off the gas supply to the generator.
Contact your gas utility or the system installer for
assistance in determining the source of the smell.
The AUTO/OFF/MANUAL Switch
This three-position device is referred to herein as
“AUTO/OFF/MANUAL”. It is found on the control panel, as
shown earlier, and is used as follows:
• “AUTO” position is the normal operating position. If a
utility power outage is sensed, the system will start the
generator, let it reach stable operating speed, then
connect generator power to the sub-panel.
When utility power is restored, the system reconnects
utility power to the sub-panel, lets the engine ‘cool
down’, shuts off the generator, and waits for the next
utility power outage.
• “OFF” position turns off a running generator, takes the
system out of Automatic mode and resets faults.The unit
will not exercise, but the ‘Set Exercise’ setting is not lost.
• “MANUAL” position starts the engine but does not
disconnect utility power from the sub-panel. It is used for
maintenance or diagnostic functions.
CAUTION!
With the switch set to AUTO, the
engine may crank and start at any time without
warning. Such automatic starting normally occurs
when utility source voltage drops below a preset
level or during the normal exercise cycle.To prevent
possible injury that might be caused by such sudden
starts, always set the AUTO/OFF/MANUAL switch
to OFF and remove the 15 Amp fuse before
working on or around the generator or transfer
switch.
The other controls and devices installed on the control
panel are described on page 10, “Know Your System
Control Panel”.