Briggs & Stratton Power Products Backup Power System

Owner’s Manual

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”.

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