Fuel Supply System - Briggs & Stratton 01931-0 Installation And Start-Up Manual

_1 Briggs & Stratton Power Products Home Generator
Installation Manual
CAUTION
• DO NOT install the 15Amp fuse until all plumbing and wiring
has been completed and inspected.
8. Set the generator's "AUTO/OFF/MANUAL" switch to
AUTO.
NOTE: With the battery installed and utility power available
to the Automatic Transfer Switch, the battery receives a
trickle charge whenever the engine is not running.The trickle
charge only prevents self-discharge and cannot be used to
recharge a battery that is completely discharged.
Fuel Supply System
Ensure that all fuel pipe connections are tight, secure and
without leaks.
Ensure that all gas line shutoff valves are OPEN and that
adequate fuel pressure is available whenever automatic
operation is desired.
FUEL SYSTEM SELECTION
The engine of your Home Standby Generator is factory
calibrated to run on natural gas (NG). It may also be
operated on liquefied petroleum (LP).There is no additional
hardware/equipment required to switch between either
fuel. However, LP fuel inlet pressure must be between
I I and 14 inches water column.
To configure the fuel system for LP use:
• Set the AUTO/OFF/MANUAL switch to OFF.
• Remove the 15 Amp fuse.
• Connect the fuel transfer solenoid as follows:
I. Remove the "Oil Service" access door.
2. Join the two-pin electrical connector shown in
Figure 12.
3. Reinstall the "Oil Service" access door.
• Reinstall the 15 Amp fuse.
• Set the AUTO/OFF/MANUAL switch to AUTO.
The system is now ready to operate automatically using LP
fuel.With a fixed main jet for LP gas, there is no need to
perform any engine adjustments for LP operation.
INITIAL START-UP
(NO LOAD)
Begin testing the system without any electrical loads
connected, as follows:
Set the AUTO/OFF/MANUAL switch to OFF.
I.
2.
Set the generator's main circuit breaker to its OFF
(open) position.
3. Install the 15 Amp fuse in the control panel.
4. Set the AUTO/OFF/MANUAL switch to MANUAL.
NOTE: When the Home Standby Generator is started for
the very first time, it will require that air in the gaseous fuel
lines be purged.This may take a few minutes.
5. DO NOT crank engine for more than 15 seconds per
minute to reduce heat in the starter.
6. Repeat process until engine starts.
7. Listen for unusual noises, vibration or other indications
of abnormal operation. Check for oil leaks while the
engine runs.
8. Let the engine warm up for about five minutes to allow
internal temperatures to stabilize.Then, set the generators
main circuit breaker to its ON (or closed) position.
9. Connect an accurate AC voltmeter and a frequency
meter to check generator output at the load side of
the circuit breaker.Voltage should be 239-250 Volts,
frequency should be 62.0 - 62.5 Hz.
NOTE: If either parameter is outside these ranges,
perform the Engine Adjustments described on page 14.
10. Check generator output between one of the
emergency/generator connection lugs and the neutral
lug, then between the other emergency/generator
connection lug and the neutral lug. In both cases,
voltage reading should be between 12 I- 126 Volts.
I I. Set the AUTO/OFF/MANUAL switch to OFF. Engine
should stop.
IMPORTANT: DO NOT proceed until you are certain
that generator AC voltage and frequency are correct and
within the stated limits.To obtain the proper generator
frequency, see Engine Adjustments on page 14.
13