Briggs & Stratton Home Generator System Installation & Start-Up Manual

11
Where local conditions include earthquake, tornado, unstable
ground, or flood hazards, special consideration shall be
given to increase strength and flexibility of piping supports
and connections.
 • Pipingmustbeofthecorrectsizetomaintainthe
required supply pressures and volume flow under
varying generator load conditions with all gas
appliances connected to the fuel system turned on
and operating.
 • Useapipesealantorjointcompoundapprovedfor
use with NG/LPG on all threaded fittings to reduce the
possibility of leakage.
 • Installedpipingmustbeproperlypurgedand
leak tested, in accordance with applicable codes
and standards.
Consider the following factors when planning to install the
fuel supply system:
 • Airdensityislessathighaltitudes,resultinginless
available engine power. Specifically, engine power will
decrease 3.5% for each 1,000 feet (300 meters) above
sea level and 1% for each 10° F (5.6°C) above 77°F
(25°C). Make sure you and your installer consider these
factors when determining total generator load.
 • Thegeneratorengineisfittedwithafuelmixersystem
that meets the specifications of the California Air
ResourcesBoardfor“tamper-proof”fuelsystems.
 • Aminimumofoneaccessible,approvedmanual
shutoff valve shall be installed in the fuel supply line
within 6 ft (1.8 m) of the generator. A union or flanged
connection shall be provided downstream from this
valve to permit removal of controls.
 • Naturalgasfuelsupplypressureatthegenerator’sfuel
inlet port should be between 5 to 7 inches of water
(in. W.C.) at full load with all gas appliances turned on
and operating.
 • LPgasfuelsupplypressureshouldbe11to14inches
of water (in. W.C.) at full load with all gas appliances
turned on and operating.
The generator has been factory set to run on natural gas. If
you need to change from natural gas to LP gas, the unit will
need to be reconfigured, as described in Fuel Conversion.
It is recommended that the fuel connection incorporate the
following components:
 • Amanualfuelshut-offvalvelocatedintheinteriorof
the building.
 • Amanualfuelshut-offvalvelocatedoutsidethe
building, just before the generator unit.
 • Wheretheformationofhydratesoriceisknownto
occur, piping should be protected against freezing. The
termination of hard piping should include a sediment
trap where condensate is not likely to freeze.
 • Amanometerportshouldbeprovided.
The manometer port permits temporary installation of
a manometer to ensure that the engine receives the
correct fuel pressure to operate efficiently throughout its
operating range.
A digital manometer, P/N 19495, is available at your local
Briggs & Stratton service center.
When the initial test runs are completed, the manometer
is removed and the port is plugged. A typical final fuel
connection assembly is shown here, where (A) is the fuel
supply and (B) goes to the home generator.
B
A
WARNING Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe
burns or death.
Before placing the generator into service, the fuel system •
lines must be properly purged and leak tested.
No leakage is permitted.•
CAUTION The supplied flexible gaseous pipe is not to
be installed underground or in contact with the ground.
The entire flexible gaseous pipe must be visible for •
periodic inspection and must not be concealed within nor
contact nor run through any wall, floor, or partition.
Not for
Reproduction

Briggs & Stratton Home Generator System Specifications

Electrical Specifications

rated maximum load current at 25°C/77°F, LP	83.3 Amps
rated AC voltage	240 Volts
phase	Single phase
rated frequency	60 Hertz

Operating Environment

normal operating range	-20°F (-28.8°C) to 104°F (40°C)
output sound level at normal load	68 dB(A) at 23 ft. (7 m)

Weight and Dimensions

shipping weight	575 lb (260 kg)