Briggs & Stratton 40220 User Manual
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BRIGGSandSTRATTON.COM
Installation,
Start-Up and
Operator’s Manual
Manual de Instalación,
Arranque y Operario
Manuel d'Installation,
Démarrage et Utilisation
7000 Rated Watts
Home Generator System
Models 040220 Part No. 198838GS Rev. E (09/04/07)
TABLE OF CONTENTS
2
TABLE OF CONTENTS
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . 3-5
KNOW YOUR HOME STANDBY GENERATOR . . . . . . . . . . . 6
KNOW YOUR CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . 7
SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . 8
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CUSTOMER RESPONSIBILITIES . . . . . . . . . . . . . . . . . . . . . 8
INSTALLER RESPONSIBILITIES . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . 8
For the Home Owner: . . . . . . . . . . . . . . . . . . . . . . 8
For the Installing Dealer/Contractor: . . . . . . . . . . . 8
OWNER ORIENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fuel Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power Decrease at High Altitude or High
Temperature . . . . . . . . . . . . . . . . . . . . . . 9
INSTALLATION PROCEDURES . . . . . . . . . . . . . . . . . . . . . . 9
Unpacking Precautions . . . . . . . . . . . . . . . . . . . . . . . . 9
Delivery Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Approved Transfer Switches . . . . . . . . . . . . . . . . . . . . 9
Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Lifting the Generator . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Home Standby Generator Location . . . . . . . . . . . . . . 10
Generator Clearances . . . . . . . . . . . . . . . . . . . . . 10
General Location Guidelines . . . . . . . . . . . . . . . . 10
Essential Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Essential Circuit Selection . . . . . . . . . . . . . . . 11-12
Disconnect Box Mounting Guidelines . . . . . . . . . . . . . 12
Fuel Inlet Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 12
Removable Roof and Access Door . . . . . . . . . . . . . . . 12
To remove roof: . . . . . . . . . . . . . . . . . . . . . . . . . . 12
To remove access door: . . . . . . . . . . . . . . . . . . . 12
To install access door and roof: . . . . . . . . . . . . . 12
THE GASEOUS FUEL SYSTEM . . . . . . . . . . . . . . . . . . 13-14
Fuel Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fuel Pipe Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fuel Comparison Chart . . . . . . . . . . . . . . . . . . . . . . . 16
Size of Propane Tank Required at Various Temperatures
When Kept at Least Half Full . . . . . . . . . . . . 16
WIRE CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Recommended Torque Values. . . . . . . . . . . . . . . . . . . 17
Generator AC Connection System . . . . . . . . . . . . . . . 17
Grounding the Generator . . . . . . . . . . . . . . . . . . . . . . 17
Generator Control Circuit Connection . . . . . . . . . . . . 17
Remote Diagnostic LED Plate . . . . . . . . . . . . . . . . . . . 17
BEFORE INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . 17
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Oil Considerations . . . . . . . . . . . . . . . . . . . . . . . . 17
Battery Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fuel Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FUEL SYSTEM SELECTION . . . . . . . . . . . . . . . . . . . . . . . . 19
INITIAL START-UP (NO LOAD) . . . . . . . . . . . . . . . . . . . . . 19
AUTOMATIC OPERATION SEQUENCE . . . . . . . . . . . . . . . . 19
Utility Voltage Dropout Sensor . . . . . . . . . . . . . . 19
Utility Voltage Pickup Sensor. . . . . . . . . . . . . . . . 19
Engine Cool-down Timer . . . . . . . . . . . . . . . . . . . 19
SETTING EXERCISE TIMER . . . . . . . . . . . . . . . . . . . . . . . 20
INSTALLATION INSPECTION . . . . . . . . . . . . . . . . . . . . . . 20
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AUTOMATIC OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Checking Automatic Operation . . . . . . . . . . . . . . . . . . 21
Servicing The System . . . . . . . . . . . . . . . . . . . . . . . . . 21
FAULT DETECTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 21
Reset Fault Detection System . . . . . . . . . . . . . . . 22
No LED - Discharged Battery . . . . . . . . . . . . . . . . 22
Low Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . 22
Engine Fails to Start. . . . . . . . . . . . . . . . . . . . . . . 22
Low Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Engine Overspeed . . . . . . . . . . . . . . . . . . . . . . . . 22
GENERATOR MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 23
Changing Engine Oil and Filter . . . . . . . . . . . . . . . . . . 23
Changing Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Changing Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . 23
To Clean the Generator . . . . . . . . . . . . . . . . . . . . . . . . 24
When Calling the Factory . . . . . . . . . . . . . . . . . . . . . . 24
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
REPLACEMENT PARTS. . . . . . . . . . . . . . . . . . . . . . . . . 28-34
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
ESPAÑOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-61
FRANÇAIS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62-88
Copyright © 2007 Briggs & Stratton Power Products Group, LLC. All rights reserved. No part of this material may be
reproduced or transmitted in any form by any means without the express written permission of Briggs & Stratton Power
Products Group, LLC.
SAFETY RULES
3
IMPORTANT SAFETY
INSTRUCTIONS
The safety alert symbol ( ) is used with a signal word
(DANGER, CAUTION, WARNING), a pictorial and/or a safety
message to alert you to hazards. DANGER indicates a hazard
which, if not avoided, will result in death or serious injury.
WARNING indicates a hazard which, if not avoided, could
result in death or serious injury. CAUTION indicates a hazard
which, if not avoided, might result in minor or moderate
injury. NOTICE, indicates a situation that could result in
equipment damage. Follow safety messages to avoid or
reduce the risk of injury or death.
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard. The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that it
is safe for you and others. You must also make sure that the
procedure, work method or operating technique that you
choose does not render the generator unsafe.
NOTE: Your generator is equipped with a spark arrester
muffler. The spark arrester must be maintained in effective
working order by the owner/operator. In the State of
California, a spark arrester is required by law (Section 4442
of the California Public Resources Code). Other states may
have similar laws. Federal laws apply on federal lands.
Hazard Symbols and Meanings
SAVE THESE INSTRUCTIONS
Fire
Explosion
Toxic Fumes
Rotating Parts
Electrical Shock
Explosive Pressure
Chemical Burn
Hot Surface
Operator’s Manual
WARNING
Running engine gives off carbon monoxide, an
odorless, colorless, poison gas.
Breathing carbon monoxide can cause headache,
fatigue, dizziness, vomiting, confusion, seizures,
nausea, fainting or death.
• Operate generator ONLY outdoors.
• Install a battery operated carbon monoxide alarm near the
bedrooms.
• Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
WARNING
Storage batteries give off explosive hydrogen gas
during recharging.
Slightest spark will ignite hydrogen and cause
explosion.
Battery electrolyte fluid contains acid and is
extremely caustic.
Contact with battery contents will cause severe
chemical burns.
A battery presents a risk of electrical shock and
high short circuit current.
• DO NOT dispose of battery in a fire.
• DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
• DO NOT open or mutilate the battery.
• Wear protective goggles, rubber apron, and rubber gloves.
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
WARNING
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
SAFETY RULES
4
WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
• Install the fuel supply system according to applicable fuel-gas
codes.
• Before placing the Home Generator System into service, the
fuel system lines must be properly purged and leak tested.
• After the generator is installed, you should inspect the fuel
system periodically.
• NO leakage is permitted.
• DO NOT operate engine if smell of fuel is present or other
explosive conditions exist.
• DO NOT smoke around the generator. Wipe up any oil spills
immediately. Ensure that no combustible materials are left in
the generator compartment. Keep the area near the generator
clean and free of debris.
WARNING
Generator produces hazardous voltage.
Failure to properly ground generator can result in
electrocution.
Failure to isolate generator from power utility can
result in death or injury to electric utility workers
due to backfeed of electrical energy.
• When using generator for backup power, notify utility company.
• DO NOT touch bare wires or receptacles.
• DO NOT use generator with electrical cords which are worn,
frayed, bare or otherwise damaged.
• DO NOT handle generator or electrical cords while standing in
water, while barefoot, or while hands or feet are wet.
• If you must work around a unit while it is operating, stand on an
insulated dry surface to reduce shock hazard.
• DO NOT allow unqualified persons or children to operate or
service generator.
• In case of an accident caused by electrical shock, immediately
shut down the source of electrical power and contact the local
authorities. Avoid direct contact with the victim.
• Despite the safe design of the Home Generator System, operating
this equipment imprudently, neglecting its maintenance or being
careless can cause possible injury or death.
• Remain alert at all times while working on this equipment.
NEVER work on the equipment when you are physically or
mentally fatigued.
• Before performing any maintenance on the generator,
disconnect the battery cable indicated by a NEGATIVE, NEG or
(-) first. When finished, reconnect that cable last.
• After your Home Generator System is installed, the generator
may crank and start without warning any time there is a power
failure. To prevent possible injury, always set the
AUTO/OFF/MANUAL switch to OFF, remove the service
disconnect from the disconnect box AND remove the 15 Amp
fuse BEFORE working on the equipment.
WARNING
Contact with muffler area can result in serious
burns.
Exhaust heat/gases can ignite combustibles or
structures causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• DO NOT install the generator closer than 5 feet (1.5m) from any
combustibles or structures with combustible walls having a fire
resistance rating of less than 1 hour.
• Keep at least 3 ft. (91 cm) clearance on all sides of generator
including overhead.
• Code of Federal Regulation (CFR) Title 36 Parks, Forests, and
Public Property require equipment powered by an internal
combustion engine to have a spark arrester, maintained in
effective working order, complying to USDA Forest service
standard 5100-1C or later revision. In the State of California a
spark arrester is required under section 4442 of the California
Public resources code. Other states may have similar laws.
SAFETY RULES
5
CAUTION
Excessively high operating speeds increase risk of injury
and damage to generator.
Excessively low speeds impose a heavy load.
• DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at governed
speed.
• DO NOT modify generator in any way.
WARNING
Starter and other rotating parts can entangle
hands, hair, clothing, or accessories.
• NEVER operate generator without protective housing or covers.
• DO NOT wear loose clothing, jewelry or anything that may be
caught in the starter or other rotating parts.
• Tie up long hair and remove jewelry.
CAUTION
Installing the 15A fuse could cause the engine to
start.
• Observe that the 15 Amp fuse has been removed from the
control panel for shipping.
• DO NOT install this fuse until all plumbing and wiring has been
completed and inspected.
NOTICE
Improper treatment of generator can damage it and
shorten its life.
• Use generator only for intended uses.
• If you have questions about intended use, ask dealer or contact
Briggs and Stratton.
• Operate generator only on level surfaces.
• Adequate, unobstructed flow of cooling and ventilating air is
critical to correct generator operation.
• The doors must be installed whenever the unit is running.
• DO NOT expose generator to excessive moisture, dust, dirt, or
corrosive vapors.
• Despite the safe design of the Home Generator System, operating
this equipment imprudently, neglecting its maintenance or being
careless can cause possible injury or death.
• Remain alert at all times while working on this equipment.
NEVER work on the equipment when you are physically or
mentally fatigued.
• DO NOT start engine with air cleaner or air cleaner cover
removed.
• DO NOT insert any objects through cooling slots.
• DO NOT use the generator or any of its parts as a step. Stepping
on the unit can cause stress and break parts. This may result in
dangerous operating conditions from leaking exhaust gases, fuel
leakage, oil leakage, etc..
• If connected devices overheat, turn them off and disconnect
them from generator.
• Shut off generator if:
-electrical output is lost;
-equipment sparks, smokes, or emits flames;
-unit vibrates excessively.
NOTICE
Exceeding generators wattage/amperage capacity can
damage generator and/or electrical devices connected to it.
• See “Essential Circuits”.
• Start generator and let engine stabilize before connecting
electrical loads.
6
KNOW YOUR HOME STANDBY GENERATOR
Read this Operator’s Manual and safety rules before operating your generator.
Compare the illustrations with your generator, to familiarize yourself with the locations of various controls and
adjustments. Save this manual for future reference.
Air Cleaner
Oil
Filter
Unit Data
Decal
Exhaust
Port
Oil Fill
Cap/DipStick
Fuel Inlet
Control Panel
(see page 7)
Battery
Oil Drain Hose
Engine Label
Air Cleaner — Uses a dry type filter element and foam
precleaner to protect engine by filtering dust and debris out
of intake air..
Battery — 12 Volt DC, 33 Amp-Hour sealed battery provides
power to start the engine. Battery receives trickle charge
whenever generator is not running.
Control Panel — Used for various test, operation and
maintenance functions. See “KNOW YOUR CONTROL
PANEL” on the next page.
Disconnect Box — Convenient junction box for ease of
installation. Allows you to connect to generator output and
disconnect utility input.
Engine Label (stamped on top of valve cover) — Identifies
engine model and type.
Exhaust Port — High-performance muffler lowers engine
noise to comply with most residential codes.
Fuel Inlet — Attach appropriate fuel supply to generator here.
Lifting Pocket — Provided at each corner for lifting
generator.
Oil Fill Cap/Dipstick — Check and fill engine with
recommended oil here.
Oil Drain Hose — Provided to facilitate oil changing.
Oil Filter — Filters engine oil to prolong generator life.
Unit Data Decal — Identifies unit by serial number.
Disconnect Box
Generator is shown with roof, plastic
access door and control panel door
removed for clarity
Lifting Pocket
FEATURES AND CONTROLS
FEATURES AND CONTROLS
7
KNOW YOUR CONTROL PANEL
Compare this Control Panel illustration with your generator to familiarize yourself with the location of these important controls:
Circuit Breaker
Set Exercise Switch
AUTO/OFF/MANUAL
Switch
15 Amp Fuse
15 Amp Fuse — Protects the Home Standby Generator DC
control circuits. If the fuse has melted open or was removed,
the engine cannot crank or start. Replace the fuse using only
an identical BUSS AGC 15A fuse.
AUTO/OFF/MANUAL Switch — This three-position switch is
used as follows:
•“AUTO” position is the normal operating mode. If a utility
power outage is sensed, the generator will start
automatically. When utility power is restored, the generator
will shut down, and is ready for the next utility power
outage.
•“OFF” position turns off generator, prevents generator
from starting and resets any faults.
•“MANUAL” position starts the generator. It is used for
maintenance or diagnostic functions.
Circuit Breaker — Protects the system from over-current
conditions and must be in the “On” position to supply power
to the Transfer Switch.
Set Exercise Switch — Used to set the exercise cycle start
time and day-of-the-week. Exercise cycle only occurs in
AUTO mode.
Set Exercise
Circuit Breaker
Auto/Off/Manual
15 Amp
Fuse
8
INSTALLATION
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be
followed during installation and maintenance of the generator
and battery.
INTRODUCTION
Thank you for your purchase of a Briggs & Stratton Home
Standby Generator. This product is intended for use as an
optional standby system which provides an alternate source of
electric power and to serve loads such as heating, refrigeration
systems, and communication systems that, when stopped
during any power outage, could cause discomfort, or the like.
This product DOES NOT qualify for emergency standby as
defined by NFPA 70 (NEC).
This manual is an important document and should be retained
by the owner after installation has been completed.
This manual contains installation, startup and adjustment
instructions for a Home Standby Generator that supplies
120/240 Volt, single phase, 60Hz devices. The Home Standby
Generator may be operated on LP vapor or natural gas fuel.
Every effort has been made to ensure that the information in
this manual is both accurate and current. However, the
manufacturer reserves the right to change, alter or otherwise
improve the generator at any time without prior notice.
Briggs and Stratton has made every effort to provide for a
safe, streamlined and cost-effective installation. Because
each installation is unique, it is impossible to know of and
advise the trade of all conceivable procedures and methods
by which installation might be achieved. Neither could we
know of possible hazards and/or the results of each method
or procedure. For these reasons,
Only current licensed electrical and plumbing
contractors should attempt Home Standby
Generator installations. Installations must strictly
comply with all applicable codes, industry
standards and regulations.
CUSTOMER RESPONSIBILITIES
• Read and follow the instructions given in this manual,
especially the section regarding selecting essential circuits.
• Follow a regular schedule in maintaining, caring for and
using your Home Standby Generator, as specified in this
manual.
INSTALLER RESPONSIBILITIES
• Read and observe the safety rules.
• Read and follow the instructions given in this manual.
IMPORTANT: If operating the generator below 40°F, it is
recommended that a battery warmer be installed. If
operating the generator below 32°F, a battery warmer
MUST be installed. This item is available at your local
servicing dealer.
INSTALLATION ASSISTANCE
For the Home Owner:
To help you make informed choices and communicate
effectively with your installation contractor(s),
Read and understand the
Owner Orientation Section of this manual
BEFORE
contracting or starting
your Home Standby Generator installation.
To arrange for proper installation, contact the store at which
you purchased your Briggs & Stratton Standby Generator,
your dealer, a licensed electrician or your utility power
provider.
The Home Standby Generator Warranty is VOID
unless the generator is installed by licensed
electrical and plumbing professionals.
For the Installing Dealer/Contractor:
• For most applications, this manual contains all the
information required to properly install and start the Home
Standby Generator. This manual also describes essential
circuit selection, routine operation and owner maintenance
procedures.
• If you need more information, call 1-800-743-4115,
between 8:00 AM and 5:00 PM CT.
The Emission Control System for this generator is warranted
for standards set by the U.S. Environmental Protection
Agency and by the California Air Resources Board (CARB).
INSTALLATION
9
OWNER ORIENTATION
This section provides the Home Standby Generator owner
with the information necessary to achieve the most
satisfactory and cost effective installation possible.
The illustrations are for typical circumstances and are meant
to familiarize you with the installation options available with
the Home Standby Generator. A thorough understanding of
these options will provide fundamental control over the cost
of installation, as well as ensure final satisfaction and security.
Federal and local codes, appearance, noise levels, fuel types,
and distances are the factors that must be considered when
negotiating with an installation professional. As the distance
from the existing electrical service and gaseous fuel supply
increases, so must the piping and wiring materials. This is
necessary to comply with local codes, overcome electrical
voltage drops and gaseous fuel pressure drops.
The factors mentioned above will have a direct affect on the
overall price of your Home Standby Generator installation.
NOTE: In some areas you may need to acquire electrical
permits for installing the Home Standby Generator, building
permits for installing gas lines, and permits for noise
allowances. Your installer should check your local codes AND
obtain the permits before installing the generator.
Fuel Factors
An important consideration affecting the entire installation is
the type of fuel used by your Home Standby Generator. The
generator was factory tested and adjusted using natural gas
as a fuel. liquid propane vapor (LP) may also be used as fuel
by installing the included conversion kit.
For proper generator performance, the following fuel
guidelines are recommended:
In engines set up to run on liquid propane vapor (LP),
commercial grade HD5 propane with a minimum fuel
energy of 2500 BTUs/ft³ with maximum propylene content
of 5% and butane and heavier gas content of 2.5% and
minimum propane content of 90%.
Power Decrease at High Altitude or High Temperature
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.
INSTALLATION PROCEDURES
Unpacking Precautions
The unit is shipped bolted to its mounting pad, ready for
installation. Avoid damage from dropping, bumping,
collision, etc. Store and unpack carton with the proper side
up, as noted on the shipping carton.
Delivery Inspection
After removing the carton, carefully inspect the Home
Standby Generator for any damage that may have occurred
during shipment.
IMPORTANT: If loss or damage is noted at time of delivery,
have the person(s) making delivery note all damage on the
freight bill and affix his signature under the consignor's
memo of loss or damage. If loss or damage is noted after
delivery, separate the damaged materials and contact the
carrier for claim procedures. Missing or damaged parts are
not warranted.
Approved Transfer Switches
The Home Standby Generator should be used ONLY with
Briggs & Stratton Power Products UL approved Transfer
Switches. Connection to any other transfer switch will void
your generator warranty.
Shipment Contents
The Home Standby Generator is supplied with:
• Home Standby Generator w/disconnect box
• Pre-attached mounting pad
• One flexible hook-up hose (meets UL 569 and CSA 8.3)
• Installation, start-up and operator’s manual
• Installation checklist
• Remote diagnostic LED plate
• Oil drain tray
• Touch-up paint
• One spare 15A fuse
• LP conversion kit
• Roof hardware bag
WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
• The Home Generator System is equipped with an automatic
safety gas “fuel shut-off” valve.
• DO NOT operate the equipment if the “fuel shut-off” valve is
missing or inoperative.
INSTALLATION
10
Lifting the Generator
The generator weighs more than 280 pounds. Proper tools,
equipment and qualified personnel should be used in all
phases of handling and moving generator.
Lifting pockets are provided at each corner between the base
of the generator and its mounting pad. Retouch any chipped
paint with supplied touch-up paint.
Home Standby Generator Location
Before installing generator, consult with homeowner and convey
the following guidelines which may affect the desired location.
Generator Clearances
Install generator outdoors in an area which will not accumulate
deadly exhaust gas. DO NOT install generator where exhaust
gas could accumulate and enter inside or be drawn into a
potentially occupied building. Ensure exhaust gas is kept away
from any windows, doors, ventilation intakes or other
openings that can allow exhaust gas to collect in a confined
area (Figure 1). Prevailing winds and air currents should be
taken into consideration when positioning generator.
General Location Guidelines
• Install the unit outdoors ONLY.
• Place the unit in a prepared location that is flat and has
provisions for water drainage.
• Install the unit in a location where sump pump discharge,
rain gutter down spouts, roof run-off, landscape irrigation,
or water sprinklers will not flood the unit or spray the
enclosure and enter any air inlet our outlet openings.
• Install the unit where the location of any services such as
phone, electrical, fuel, air conditioning, irrigation, including
covered, concealed and underground services will not be
affected or obstructed.
• Install the unit where air inlet and outlet openings will not
become obstructed by leaves, grass, snow, etc. If
prevailing winds will cause blowing or drifting, you may
need to construct a windbreak to protect the unit.
• Install the generator as close as possible to the fuel supply
to reduce length of pipes.
IMPORTANT: Laws or local codes may regulate the distance
to the fuel supply.
The Home Standby Generator is shipped already attached to
its mounting pad. Unless mandated by local code, a concrete
slab is not required.
If mandated by local code, construct a concrete slab at least
3 inches thick and 6 inches longer and wider than the unit.
Attach unit to slab with 1/4” diameter (minimum) masonry
anchor bolts long enough to retain the unit.
Figure 1 — Home Standby Generator Clearances
Exhaust
Port
WARNING
Lifting Hazard / Heavy Object
Can cause muscle strain or back injury.
• DO NOT lift or move generator without assistance.
• DO NOT lift unit by roof as damage to generator will occur.
WARNING
Exhaust heat/gases can ignite combustibles or
structures causing a fire.
• DO NOT install the generator closer than 5 feet (1.5m) from any
combustibles or structures with combustible walls having a fire
resistance rating of less than 1 hour.
• Keep at least 3 ft. (91 cm) clearance on all sides of generator
including overhead.
WARNING
Running engine gives off carbon monoxide, an
odorless, colorless, poison gas.
Breathing carbon monoxide can cause headache,
fatigue, dizziness, vomiting, confusion, seizures,
nausea, fainting or death.
• Operate generator ONLY outdoors.
• Install a battery operated carbon monoxide alarm near the
bedrooms.
• Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
INSTALLATION
11
Essential Circuits
Consult with owner to clearly identify the circuits in building
that are "essential".
It is important that you understand which circuits the owner
wants to include as "Essential Circuits". Depending on the
power consumed by these circuits, most or all of them can
be switched to the Home Standby Generator for the duration
of normal power interruption.
The wattage reference guide shown in Figure 2 will assist the
owner with their decision-making process. It provides the
wattage used by many ordinary household devices. Use it as
a guide when selecting essential circuits. Review this
information with the owner and convey any technical
considerations that might affect the cost of installation.
Essential Circuit Selection
When selecting the essential circuits that will be switched to
“Standby Power,” it is important that the sum of the combined
circuit loads does not exceed the wattage/amperage capacity of
the generator. To help you with your selection of essential
circuits, please consider the following:
• Add up the total wattage of all electrical devices to be
connected at one time. This total should NOT be greater
than the generator’s wattage capacity.
• The rated wattage of lights can be taken from light bulbs. The
rated wattage of tools, appliances and motors can usually be
found on a data plate or decal affixed to the device.
• If the appliance, tool or motor nameplate does not list
wattage, multiply volts times the ampere rating to
determine watts (Volts x Amps = Watts).
• Some electric motors (induction types) require about three
times more watts of power for starting than for running.
This surge lasts for only a few seconds. Be sure you allow
for this high starting wattage when selecting electrical
devices that will be energized by the Home Standby
Generator:
• Figure the watts required to start the largest motor.
• Add that to the total running watts of all other
connected loads.
This Briggs & Stratton Home Standby Generator complies
with the following “stationary standby power rating”:
The standby power rating is applicable for supplying power
for the duration of normal power interruption. NO
sustained overload capability is available for this rating.
Device
Running
Watts
Air Conditioner (12,000 Btu)*
1700
Air Conditioner (24,000 Btu)*
3800
Air Conditioner (40,000 Btu)*
6000
Battery Charger (20 Amp)
500
Circular Saw (6-1/2")
800 to 1000
Clothes Dryer (Electric)*
5750
Clothes Dryer (Gas)*
700
Clothes Washer*
1150
Coffee Maker
1750
Compressor (1 HP)*
2000
Compressor (1/2 HP)*
1400
Compressor (3/4 HP)*
1800
Curling Iron
700
Dehumidifier*
650
Electric Blanket
400
Electric Range (per element)
1500
Electric Skillet
1250
Freezer*
700
Furnace Fan (3/5 HP)*
875
Garage Door Opener*
500 to 750
Hair Dryer
1200
Hand Drill
250 to 1100
Iron
1200
Jet Pump*
800
Light Bulb
100
Microwave Oven
700 to 1000
Milk Cooler*
1100
Oil Burner on Furnace
300
Oil Fired Space Heater (140,000 Btu)
400
Oil Fired Space Heater (30,000 Btu)
150
Oil Fired Space Heater (85,000 Btu)
225
Radio
50 to 200
Refrigerator
700
Slow Cooker
200
Submersible Pump (1 HP)*
2000
Submersible Pump (1/2 HP)*
1500
Submersible Pump (1-1/2 HP)*
2800
Sump Pump*
800 to 1050
Table Saw (10")*
1750 to 2000
Television
200 to 500
Toaster
1000 to 1650
Figure 2 — Wattage Reference Guide
*Allow three (3) times listed watts for starting device
INSTALLATION
12
This rating is applicable to installations served by a reliable
normal utility source. This rating is only applicable to
variable loads with an average load factor of 80% of the
standby rating. The standby rating is only applicable for
optional standby power where the generator set serves as
the backup to the normal utility source.
Use the “Wattage Reference Guide” provided and mark those
circuits you consider “critical” or “essential”. Make sure you
and your installer consider the generator’s altitude above sea
level and the ambient temperature range when determining
total generator load.
Disconnect Box Mounting Guidelines
The disconnect box is a NEMA Type 3R enclosure suitable for
outdoor use. Installations must strictly comply with all
applicable codes, industry standards and regulations.
Guidelines for mounting the disconnect box include:
• The disconnect box must be installed with appropriate
hardware for conduit connections.
• Install disconnect box on a firm, sturdy supporting
structure, making sure it is level and plumb.
• NEVER install disconnect box where any corrosive
substance might drip onto enclosure.
• Protect disconnect box at all times against excessive
moisture, dust, dirt, lint, construction grit and corrosive
vapors.
The typical installation of the disconnect box is depicted in
Figure 3. Discuss layout suggestions/changes with owner
before beginning installation process.
Fuel Inlet Dimensions
Figure 4, below, depicts the location of the fuel piping
connector.
Removable Roof and Access Door
The Home Standby Generator is equipped with an enclosure
that has a removable roof and an access door for the control
panel.
To Remove Roof:
Remove the four screws and lift off.
To Remove Access Door:
1. Remove roof as described above.
2. Remove screw at top of access door.
3. Pull access door outward (away) from unit while pulling
door upward and out of base. Door will come free of
generator enclosure.
To Install Access Door and Roof:
1. Guide bottom of access door into base.
2. Push access door until it is flush with sides.
3. Replace door screw.
4. Replace roof and screws.
Figure 4 — Generator Fuel Attachment Location
3/4” NPT
Fuel Piping
Connector
4.5”
13.5”
Figure 3 — Typical Disconnect Box Mounting
INSTALLATION
13
THE GASEOUS FUEL SYSTEM
TO THE INSTALLER: Consult with the Home Generator
System owner(s) and convey any technical considerations
that might affect their installation plans before applying these
general guidelines.
The following general rules apply to gaseous fuel system
piping:
• The piping should be of a material that conforms to federal
and local codes, rigidly mounted and protected against
vibration.
• Piping should be protected from physical damage where it
passes through flower beds, shrub beds, and other
cultivated areas where damage could occur.
• Install the flexible, gaseous hose that meets UL 569 and
CSA 8.3 (supplied) between the Home Generator System
Fuel Inlet port and rigid piping to prevent thermal
expansion or contraction from causing excessive stress on
the piping material.
NOTE: 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 an approved pipe sealant or joint compound 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:
The Home Generator System engine is fitted with a fuel mixer
system that meets the specifications of the California Air
Resources Board for “tamper-proof” dual fuel systems. The
unit will run on natural gas or liquefied propane vapor.
• 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 Home Generator System. 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. LP fuel supply pressure should be 11 to
14 inches of water (in. W.C.) at full load.
The information provided below is to assist gaseous fuel
system technicians in planning installations.
In no way
should this information be interpreted to conflict with
applicable fuel gas codes. Consult with your local fuel
supplier or Fire Marshall if questions or problems arise.
WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
• LP gas is heavier than air and will settle in low areas.
• Natural gas is lighter than air and will collect in high areas.
• The slightest spark can ignite these fuels and cause an explosion.
• DO NOT light a cigarette or smoke.
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, contact, or run
through any wall, floor, or partition.
WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
• Before placing the Home Generator System into service, the
fuel system lines must be properly purged and leak tested.
• NO leakage is permitted.
INSTALLATION
14
The Home Generator System unit 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
on page 19.
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 (Figure 5), to ensure that the engine receives the
correct fuel pressure to operate efficiently throughout its
operating range.
NOTE: 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 in Figure 6.
Fuel Consumption
See Figure 7 for estimated fuel supply requirements at half
and full load for both natural gas and LP vapor.
Figure 6 — Completed Fuel Connections
From Fuel
Supply Line
To Home Standby
Generator
Figure 5 — Temporary Manometer Installed
Natural Gas* LP Vapor**
1/2 Load Full Load 1/2 Load Full Load
80 137 33 56
* = Natural Gas is in cubic feet per hour
** = LP Vapor is in cubic feet per hour
Figure 7 — Fuel Supply Requirements
INSTALLATION
15
Fuel Pipe Sizing
Figures 8 and 9 provide the maximum capacity of pipe in
cubic feet of gas per hour for gas pressures of 0.5 psi or less
and a pressure drop of 0.3 in. water column. Specific gravity
of gas is shown.
Listed values compensate for a nominal amount of restriction
from bends, fittings, etc. If an unusual number of fittings,
bends, or other restrictions are used, please refer to federal
and local codes.
NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft
1/2” 168 146 115 93 79 70 63 59 55 51 48
3/4” 346 293 240 192 163 145 132 120 113 106 99
1” 653 549 446 360 307 274 250 230 211 197 187
Natural Gas (sg=0.65)
NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft
1/2” 110 96 76 61 52 46 42 38 36 33 32
3/4” 277 192 158 126 107 95 87 79 74 69 65
1” 428 360 293 236 202 180 164 151 139 129 123
Liquid Propane (LP) (sg=1.50)
Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour
Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour
INSTALLATION
16
Fuel Comparison Chart
Size of Propane Tank Required at Various
Temperatures When Kept at Least Half
Full
Given the gas withdrawal rate and the lowest average winter
temperature, an installer can specify the required LP storage
tank size:
Physical Properties Propane Natural Gas
Normal Atmospheric State Gas Gas
Boiling Point (in °F):
Initial -44 -259
End -44 -259
Heating Value:
BTU per gallon (Net LHV*) 83,340 63,310
BTU per Gallon (Gross**) 91,547
Cubic Feet (Gas) 2,500 1,000
Density*** 36.39 57.75
Weight† 4.24 2.65
Octane Number:
Research 110+ 110+
Motor 97
* LHV (Low Heat Value) is the more realistic rating.
** Gross Heat Value does not consider heat lost in the form of water during
combustion.
*** Density is given in "Cubic Feet of Gas per Gallon of Liquid".
† Weight is given in "Pounds per Gallon of Liquid".
Withdrawal Rate 32°F 20°F 10°F 0°F -10°F -30°F -40°F
50 CFH 115 115 115 250 250 400 600
100 CFH 250 250 250 400 500 1000 1500
150 CFH 300 400 500 500 1000 1500 2500
200 CFH 400 500 750 1000 1200 2000 2500
300 CFH 750 1000 1500 2000 2500 4000 5000
INSTALLATION
17
WIRE CONNECTIONS
Recommended Torque Values
Torque all wire connections/fasteners to values recommended in
Figure 10. Suitable for copper wire of 60°/75°C rating.
Generator AC Connection System
A single-phase, three-wire AC connection system is used in
the Home Standby Generator. The stator assembly consists
of a pair of stationary windings with two leads brought out of
each winding. The junction of leads 22 and 33 forms the
neutral lead. A complete schematic and wiring diagram can
be found on pages 26-27.
NOTE: Neutral is not bonded to ground at generator.
Grounding the Generator
Ground the Home Generator System per applicable codes,
standards, and regulations. The GND lug is located in the
disconnect box.
Generator Control Circuit Connection
Control circuit interconnections consist of "240V AC Utility"
leads. These two leads must be routed in conduit. Control
lead functions are briefly described as follows:
• Leads deliver utility power to the generator’s circuit board,
optional battery warmer and oil heater and charge the
battery.
Using installer-supplied minimum 300V, 14 AWG copper
wire, connect control circuit terminals in the disconnect box
to the Transfer Switch.
Remote Diagnostic LED Plate
The light on the remote LED plate is referred to as the
Diagnostic LED. The LED will stay lit indicating the generator is
in ready mode and will turn on and off in a series of blinks if
certain faults are detected in the Home Standby Generator. A
mounting plate is supplied so that it can be installed at a
convenient indoor location. The owner will use it to observe
the status of the Home Standby Generator. Consult with the
owner for a convenient location.
To install the remote diagnostic LED plate:
• Mount installer-supplied electrical box to wall.
• Using installer-supplied wire, connect the remote LED
leads to the “Remote Status Light” in disconnect box.
NOTE: LED leads are polarity sensitive.
• Attach mounting plate to electrical box.
Refer to the section “Fault Detection System” on pages 21-22
for operation.
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 in the engine
operator’s manual.
Oil Considerations
Your Home Standby Generator is equipped with an engine
that has been pre-run at the factory and does not require the
traditional “break-in” procedure.
The generator is filled with synthetic oil (API SJ/CF 5W30W). This allows for generator 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 in the engine operator’s
manual.
CONNECTIONS: Torque Value
In Main Distribution Panel:
Refer to panel manufacturer specs
In Disconnect Box:
240V AC Utility 5 in-lb
Engine Start 5 in-lb
Remote Status 5 in-lb
Generator 17 in-lb
Ground 40 in-lb
Circuit Breakers:
Refer to circuit breaker manufacturer specs
Figure 10 — Recommended Torque Values
NOTICE
Any attempt to crank or start the engine before it has been
properly serviced with the recommended oil will result in
equipment failure.
• Refer to engine manual for oil fill information.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
INSTALLATION
18
Battery Connection
The Home Standby Generator is supplied with a 12 Volt DC,
AGM type, 33 Amp-Hour, valve regulated battery. It is a
sealed, lead-acid rechargeable battery. It is installed in the unit
and the battery cables are connected at the factory. The unit’s
15 Amp fuse, which isolates the battery and prevents the unit
from starting, has been removed for shipping. The battery will
lose some charge charge prior to installation of the generator.
If battery voltage is below 12 Volts, charge the battery.
IMPORTANT: If battery voltage is below 5 Volts, it may not
take a charge and you will need a new battery.
Charging the Battery
If it is necessary to charge the battery, proceed as follows:
1. Set the generator's “AUTO/OFF/MANUAL” switch to OFF.
2. Remove the 15 Amp fuse from the control panel.
3. Disconnect the negative battery cable to the negative
battery terminal (indicated by NEGATIVE, NEG, or (-).
4. Charge battery with battery charger at 2 Amps until
battery holds 12 Volts.
NOTE: DO NOT exceed 13.7 Volts charging.
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. This process may
take up to 72 hours to fully charge a battery from 5 Volts.
The trickle charge cannot be used to recharge a battery that
is completely discharged.
5. Connect the negative battery cable to the negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
6. Ensure hardware on both positive and negative battery
terminals is secure.
7. Reinstall the 15 Amp fuse in the control panel.
8. Set the generator's “AUTO/OFF/MANUAL” switch to
AUTO.
Servicing the Battery
If it is necessary to service the battery, proceed as follows:
1. Set the generator's “AUTO/OFF/MANUAL” switch to OFF.
2. Remove the 15 Amp fuse from the control panel.
3. Service or replace battery as required.
4. Connect the red battery cable to the battery positive
terminal (indicated by POSITIVE, POS, or (+)).
5. Connect the negative battery cable to the negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
6. Ensure hardware on both positive and negative battery
terminals is secure.
7. Reinstall the 15 Amp fuse in the control panel.
8. Set the generator's “AUTO/OFF/MANUAL” switch to
AUTO.
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.
NOTICE
Failure to disconnect negative battery cable will result in
equipment failure.
• DO NOT attempt to jump start the battery.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
WARNING
Storage batteries give off explosive hydrogen gas
during recharging.
Slightest spark will ignite hydrogen and cause
explosion.
Battery electrolyte fluid contains acid and is
extremely caustic.
Contact with battery contents will cause severe
chemical burns.
A battery presents a risk of electrical shock and
high short circuit current.
• DO NOT dispose of battery in a fire.
• DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
• DO NOT open or mutilate the battery.
• Wear protective goggles, rubber apron, and rubber gloves.
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
CAUTION
Installing the 15A fuse could cause the engine to
start.
• DO NOT install this fuse until all plumbing and wiring has been
completed and inspected.
INSTALLATION
19
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 liquid propane vapor (LP).
To configure the fuel system for LP use:
1. LP fuel inlet pressure must be between 11 and 14 inches
water column.
2. Set AUTO/OFF/MANUAL switch to OFF.
3. Pull service disconnect from disconnect box.
4. Remove 15 Amp fuse.
5. Change main jet in fuel mixer following instruction sheet
provided in LP conversion kit.
6. Reinstall 15 Amp fuse.
7. Reinstall service disconnect in disconnect box.
8. Set AUTO/OFF/MANUAL switch to AUTO.
9. Reset exercise timer following instructions “Setting
Exercise Timer” on page 20.
The generator 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 generator without any electrical loads
connected, as follows:
1. Set AUTO/OFF/MANUAL switch to OFF.
2. Set generator’s main circuit breaker to OFF (open)
position.
3. Install 15 Amp fuse in control panel.
4. Set 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, then
pause for 15 seconds to reduce heat in 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 engine warm up for about five minutes to allow
internal temperatures to stabilize. Then, set generators
main circuit breaker to ON (or closed) position.
9. Connect an RMS AC voltmeter and a frequency meter to
check generator output at load side of circuit breaker.
Voltage should be 230-240 Volts, frequency should be
62.0 - 62.5 Hz.
10. Check generator output between one generator
connection lug and neutral lug, then between other
generator connection lug and neutral lug. In both cases,
voltage reading should be between 115-120 Volts.
11. Set AUTO/OFF/MANUAL switch to OFF. Engine will shut
down.
AUTOMATIC OPERATION
SEQUENCE
The generator’s control panel houses a logic control circuit
board. This control board constantly monitors utility power
source voltage. Should that voltage drop below a preset level,
control board action will signal the engine to crank and start.
When utility source voltage is restored above a preset voltage
level, the engine is signaled to shut down.
The actual system operation is not adjustable and is
sequenced by sensors and timers on the control board, as
follows:
Utility Voltage Dropout Sensor
• This sensor monitors utility source voltage.
• If utility source voltage drops below 70 percent of the
nominal supply voltage, the sensor energizes a six second
timer.
• Once the timer has expired, the generator will start.
Utility Voltage Pickup Sensor
This sensor monitors utility power supply voltage. When that
voltage is restored above 80 percent of the nominal source
voltage, a time delay starts timing and the generator will go
to engine cool-down.
Engine Cool-down Timer
• When the load is transferred back to the utility power
source, the engine cool-down timer starts timing.
• The timer will run for about one minute, then the generator
will stop.
• Minimum generator run time is five minutes.
20
INSTALLATION
SETTING EXERCISE TIMER
The Home Standby Generator is equipped with an exercise
timer that will start and exercise the generator once every
seven days. During this exercise period, the unit runs for
approximately 20 minutes and then shuts down. Electrical
load transfer DOES NOT occur during the exercise cycle
(unless an utility power outage occurs).
A switch on the control panel is labeled “Set Exercise” (see
page 7). On the specific day and time the switch is pressed,
the control board is programmed. This date and time is then
used to automatically initiate the generator exercise cycle.
To perform the Set Exercise procedure:
1. Choose day and time you want Home Standby Generator
to exercise.
2. On that day and time
, set AUTO/OFF/MANUAL switch to
OFF position.
3. Press and hold down “Set Exercise” switch for two
seconds.
4. Set AUTO/OFF/MANUAL switch to AUTO. “Set Exercise”
is complete.
For example, if you press the “Set Exercise” switch on
Sunday morning at 10:00 AM, the unit will run an exercise
cycle the following Sunday at 10:00 AM (+/- 1 hour).
NOTE: “Set Exercise” will only work if the unit is in the
Automatic mode and this exact procedure is followed.
If you want to change the day and time the unit exercises,
simply perform the “Set Exercise” procedure at the day and
time you want it to take place.
INSTALLATION INSPECTION
Before placing the Home Standby Generator into service,
inspect the entire installation carefully. Ensure that any
scratches or broken paint on the inside or outside of the
enclosure are touched up with the supplied paint.
Complete the ”Installation Checklist” as you make the
inspection. Ensure all items have been filled-in and all
signatures have been obtained. Instruct the owner to mail the
white copy to:
Briggs & Stratton Power Products
Warranty Registration
P. O. Box 1144
Milwaukee, WI 53201-1144
OPERATION
21
SPECIFICATIONS
Rated Maximum Power (LP*) . . . . . . . . . . . . . . . . . .7.0 kW
Rated Maximum Load Current:
at 240 Volts . . . . . . . . . . . . . . . . . . . . . . . . . . .29.1 Amps
at 120 Volts . . . . . . . . . . . . . . . . . . . . . . . . . . .58.2 Amps
Rated AC Voltage . . . . . . . . . . . . . . . . . . . . . . .120/240 Volts
Rated Frequency . . . . . . . . . . . . . . . . . . .60 Hz at 3600 rpm
Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Single Phase
Power Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.0
NG Fuel Supply Pressure . . . . . . . . . . . . . . . . . . .5-7 in W.C.
LP Fuel Supply Pressure . . . . . . . . . . . . . . . . .11-14 in W.C.
Normal Operating Range . .-20°F (-28.8°C) to 104°F (40°C)
Output Sound Level . . . .81 dB(A) at 23 ft. (7 m) at full load
Shipping Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . .280 lbs.
* Natural gas rating will depend on specific fuel but typical
derating of generator is between 10 to 20% off the LP gas
rating.
AUTOMATIC OPERATION
To select automatic operation, do the following:
1. Set service disconnect or main distribution panel circuit
breaker that sends utility voltage to transfer switch to
ON.
2. Set generator’s main circuit breaker to ON position.
3. Set AUTO/OFF/MANUAL switch to AUTO.
Checking Automatic Operation
To check the system for proper automatic operation, proceed
as follows:
1. Turn OFF service disconnect or main distribution panel
circuit breaker sending power to automatic transfer
switch.
The generator will crank and start once the utility voltage
drops out and the sensor has timed out. Let the system go
through its entire automatic operation sequence.
2. With generator output supplying load, turn ON service
disconnect or main distribution panel circuit breaker that
supplies utility power to automatic transfer switch.
3. Automatic transfer switch will transfer loads back to
utility power after five minute minimum run time and
utility is restored.
4. Generator will run for approximately an additional minute
for engine cool down, then shut down.
5. Install control panel access door and roof following
instructions in “Removable Roof and Access Door” on
page 12.
NOTE: If generator does not shut down after approximately
10 minutes, put AUTO/OFF/MANUAL switch to OFF and
contact your local service center.
This completes the test procedures for automatic operation.
The Home Standby Generator will now start automatically
when utility power is lost and will supply power to the
transfer switch.
Servicing the System
To service system:
1. Remove roof by removing four screws and lifting off.
2. Remove screw at top of control panel access door.
3. Pull access door outward (away) from unit while pulling
door upward and out of base. Door will come free of
generator enclosure.
4. Set AUTO/OFF/MANUAL switch to OFF.
5. Set generator’s main circuit breaker to OFF position.
6. Pull service disconnect from disconnect box.
7. Remove 15A fuse from control panel.
FAULT DETECTION SYSTEM
The generator may have to run for long periods of time with
no operator present. For that reason, the system is equipped
with sensors that automatically shut down the generator in
the event of potentially damaging conditions, such as low oil
pressure, over speed, and other conditions.
A light on the remote LED plate is called the Diagnostic LED.
The LED will turn on and off in a series of blinks if certain
problems are detected in your Home Standby Generator. The
blink pattern is repeated with a brief pause between each
series. The number of blinks in the series indicates the
detected fault, as listed on the mounting plate and as follows:
22
OPERATION
Number of LED Flashes Fault Description
2 Low oil pressure
4 Engine failed to start
5 Low frequency
6 Engine overspeed
Reset Fault Detection System
The operator must reset the fault detection system each time
it activates. To do so, place the AUTO/OFF/MANUAL switch in
the OFF position for 30 seconds or more. Return the Home
Standby Generator to service after correcting the problem by
placing the AUTO/OFF/MANUAL switch in the AUTO position.
A description of each fault and suggested remedies are as
follows:
No LED - Discharged Battery
This condition is caused by a completely discharged battery.
To remedy the problem, remove the 15 Amp fuse and
disconnect the battery from the generator. Take the battery to
a local battery store for analysis.
Install the battery after it has been fully recharged or replaced,
connecting the NEGATIVE cable last. Install the 15 Amp fuse.
Low Oil Pressure
This fault is indicated by two blinks. The generator is
equipped with an oil pressure switch (Figure 11). Should oil
pressure drop, switch contacts close and the engine is shut
down.
To remedy the low oil pressure condition, add the
recommended oil to the FULL mark on the dipstick.
If low oil pressure condition still exists, generator will start,
then shut down after approximately 10 seconds and
diagnostic LED will flash. In this case, contact your local
service center.
Engine Fail To Start
This fault is indicated by four blinks. This feature prevents
the generator from damage by continually attempting to start.
Each time the system is directed to start, the generator will
crank for 15 seconds, pause for 15 seconds, crank for
15 seconds, pause for 15 seconds, and repeat. If the
generator does not begin producing electricity after
approximately 90 seconds, the generator will stop cranking
and the LED will blink.
The most likely cause of this problem is no fuel supply.
Check the inside and outside fuel shut off valves to ensure
they are fully open. Other causes could be failed spark plug,
failed engine ignition, or the engine air filter is clogged. You
may need to contact your local service center for assistance
if you can’t remedy these problems.
Low Frequency
This fault is indicated by five blinks. This feature protects
devices connected to the transfer switch by shutting the
generator down if the engine runs slower than the preset
limit.
This condition may be potentially caused by a failed engine
governor. To remedy the problem, you should contact your
local service center for assistance.
This condition may also be potentially caused by excessive
loads on the generator. Turn off devices one at a time and
check the frequency. To remedy the problem, you may need
to contact your local service center for assistance.
Engine Overspeed
This fault is indicated by six blinks. This feature protects
devices connected to the transfer switch by shutting the
generator down if the engine happens to run faster than the
preset limit. The overspeed fault is detected as follows:
• If the generator output frequency runs at 72 Hz for five
seconds, the generator will shut down.
• If the generator output frequency reaches 75 Hz, the
generator will shut down immediately.
This condition is potentially caused by a failed engine
governor. To remedy the problem, you should contact your
local service center for assistance.
Figure 11 — Low Oil Pressure
Oil Pressure Switch
MAINTENANCE
23
GENERATOR MAINTENANCE
The generator warranty does not cover items that have been
subjected to operator abuse or neglect. To receive full value
from the warranty, the operator must maintain the engine as
instructed in the engine operator’s manual.
IMPORTANT: Before performing any maintenance on the
generator, be sure you follow all steps in “Servicing the
System” on page 21.
Generator maintenance consists of keeping the unit clean.
Operate the unit in an environment where it will not be exposed
to excessive dust, dirt, moisture or any corrosive vapors.
Cooling air louvers on the enclosure must not become clogged
with snow, leaves, or any other foreign material.
Check the cleanliness of the unit frequently and clean when
dust, dirt, oil, moisture or other foreign substances are
visible on its exterior/interior surface.
NOTE: DO NOT use direct spray from a garden hose to clean
generator. Water can enter the engine and generator and
cause problems.
Changing Engine Oil and Filter
Remove the two screws from each plastic access cover and
remove both access covers from the two sides of the
generator enclosure.
Changing Oil
1. Place oil drain tube into approved container.
2. Push in and rotate oil drain fitting 1/4 turn
counterclockwise. Slowly pull outward until oil starts
draining (Figure 12). DO NOT pull oil drain fitting off
engine.
3. When oil has drained, push oil drain fitting in and rotate
1/4 turn clockwise until it locks in place.
4. Slide oil drain tube up into clamp on generator.
Changing Oil Filter
1. Place oil drain tray over tubing and slide it under oil filter
(Figure 13).
2. Follow instructions given in engine operator’s manual for
changing oil filter.
3. Remove oil drain tray from under oil filter and clean up
any spilled oil.
KEEP OUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
To fill your engine with oil:
• Follow synthetic oil grade recommendation given in
“Engine Oil” on page 17 and oil fill instructions given in
engine operator’s manual.
Figure 12 — Oil Drain Fitting
Figure 13 — Changing Oil Filter with Oil Drain Tray
oil drain tray
NOTICE
Any attempt to crank or start the engine before it has been
properly serviced with the recommended oil will result in
equipment failure.
• Refer to engine manual for oil fill information.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
CAUTION
Avoid prolonged or repeated skin contact with used motor
oil.
• Used motor oil has been shown to cause skin cancer in certain
laboratory animals.
• Thoroughly wash exposed areas with soap and water.
MAINTENANCE
24
To Clean the Generator
• Use a damp cloth to wipe exterior surfaces clean.
• Use a soft, bristle brush to loosen caked on dirt, oil, etc.
• Use a vacuum cleaner to pick up loose dirt and debris.
• Inspect cooling air slots and openings on the generator.
These openings must be kept clean and unobstructed.
When Calling the Factory
You must have the following information at hand if it is
necessary to contact a local service center regarding service
or repair of this unit:
1. Obtain unit Model Number and Serial Number from unit
data decal. See “Know Your Home Standby Generator”
diagram for location.
2. Obtain engine Model/Type/Code numbers from engine
label. See “Know Your Home Standby Generator”
diagram for location. Please note that model number
may vary slightly from that presented herein.
STORAGE
The Briggs & Stratton Home Standby Generator is designed
for continuous backup operational duty. As such, there is no
need to take any storage precautions. However, if it becomes
necessary to take the system out of service for an extended
period, call Briggs & Stratton Technical Services at
1-800-743-4115, between 8:00 AM and 5:00 PM CT for
specific recommendations.
NOTICE
Improper treatment of generator can damage it and
shorten its life.
• DO NOT expose generator to excessive moisture, dust, dirt, or
corrosive vapors.
• DO NOT insert any objects through cooling slots.
25
TROUBLESHOOTING
Problem Cause Correction
Engine is running, but no AC output is
available.
1. Circuit breaker open or defective.
2. Fault in generator.
3. Poor wiring connections or
defective transfer switch.
1. Reset or replace circuit breaker.
2. Contact local service facility.
3. Check and repair.
Engine runs good at no-load but "bogs
down" when loads are connected.
1. Short circuit in a connected load.
2. Generator is overloaded.
3. Shorted generator circuit.
4. Fuel Pressure is incorrect.
5. Natural gas fuel mixture is
incorrect.
1. Disconnect shorted electrical load.
2. See "Essential Circuits".
3. Contact local service facility.
4. See "The Gaseous Fuel System".
5. See "The Gaseous Fuel System".
Engine will not start; or starts and runs
rough.
1. 15 Amp fuse missing or blown.
2. Out of fuel.
3. Battery doesn’t have enough power
to crank over generator in cold
temperatures.
4. Failed battery.
1. Install (new) 15 Amp fuse. See
“Know Your Control Panel”.
2. Open fuel valve(s); check propane
tank.
3. Install battery warmer, contact local
service facility.
4. Replace battery.
Engine shuts down during operation.
1. Out of fuel.
2. Fault indicator blinking.
1. Check fuel valves, fill propane tank.
2. Count blinks and refer to "Fault
Detection System".
Loss of power on essential circuits.
1. Generator circuit breaker is open.
2. Transfer switch problems.
1. Reset circuit breaker.
2. See transfer switch manual.
TROUBLESHOOTING
SCHEMATIC
26
SCHEMATIC
WIRING DIAGRAM
27
WIRING DIAGRAM
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