Simplicity 040344-00 Guide d'installation

Installation & Start-Up Manual

10000 Watt

Automatic

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Reproduction

2 BRIGGSandSTRATTON.COM

Thank you for purchasing this quality-built Briggs & Stratton home generator. We’re pleased that you’ve placed your

confidence in the Briggs & Stratton brand. When operated and maintained according to the instructions in the operator’s

manual, your home generator will provide many years of dependable service.

This manual contains safety information to make you aware of the hazards and risks associated with residential generator

systems and how to avoid them. This generator system is designed and intended only for use as an optional home standby

system that 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 inconvenience. Save these

instructions for future reference.

This generator system requires professional installation before use. The installer should follow the instructions completely.

Where to Find Us

You never have to look far to find support and service for your generator. Consult your Yellow Pages. There are many

Briggs & Stratton authorized service dealers who provide quality service. You can also contact Technical Service by phone at

(800) 743-4115 between 8:00 AM and 5:00 PM CT., or click on Find a Dealer at BRIGGSandSTRATTON.COM, which provides a

list of authorized dealers.

For Future Reference

Please fill out the information below and keep with your receipt to assist in unit identification for future purchase issues.

Date of Purchase

Generator

Model Number

Model Revision

Serial Number

Engine

Model Number

Serial Number

Briggs & Stratton Power Products Group, LLC

P.O. Box 702

Milwaukee, WI 53201-0702

may be reproduced or transmitted in any form without the express

written permission of Briggs & Stratton Power Products Group, LLC.

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Table of Contents

Important Safety Instructions........................4

Installation ....................................7

Installing Dealer/Contractor Responsibilities ........................7

Delivery Inspection............................................7

Shipment Contents............................................7

The Gaseous Fuel System .....................................10

Fuel Consumption ...........................................12

Fuel Pipe Sizing .............................................12

System Connectors ..........................................13

Grounding the Generator ......................................14

Fault Detection System .......................................15

System Control Panel.........................................15

Final Installation Considerations ................................16

Engine Adjustment...........................................17

Test Shutdown(s) Procedure ...................................17

Fuel Conversion .............................................19

Schematic Diagram ..........................................20

Wiring Diagram .............................................21

Controls ..................................... 22

Operation .................................... 22

Automatic Operation Sequence .................................22

Setting Exercise Timer ........................................22

Installation Inspection ........................................22

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Important Safety Instructions

SAVE THESE INSTRUCTIONS - This manual contains

important instructions that should be followed during

installation and maintenance of the generator and batteries.

Safety Symbols and Meanings

The safety alert symbol indicates a potential personal

injury hazard. A signal word (DANGER, WARNING, or

CAUTION) is used with the alert symbol to designate a

degree or level of hazard seriousness. A safety symbol

may be used to represent the type of hazard. The signal

word NOTICE is used to address practices not related to

personal injury.

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, could

result in minor or moderate injury.

NOTICE addresses practices not related to personal injury.

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 system unsafe.

Explosion

Fire

Electrical Shock

Rotating Parts

Hot Surface

Toxic Fumes

Chemical BurnExplosive PressureAuto Start

Lift Hazard

Read Manual

Save These Instructions

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. Recycle battery.•

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, rubber boots and •

rubber gloves.

Remove watches, rings, or other metal objects.•

Use tools having 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.

WARNING Certain components in this product and

related accessories contain chemicals known to the State

of California to cause cancer, birth defects, or other

reproductive harm. Wash hands after handling.

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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 bare 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 the risk of

a 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 residential generator, •

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 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

generator’s system switch to OFF, remove the service

disconnect from the disconnect box AND remove the

15 Amp fuse BEFORE working on the equipment.

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 NFPA 37 and •

other applicable fuel-gas codes.

Before placing the generator 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 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 minimum distances shown in • General

Location Guidelines to insure for proper generator cooling

and maintenance clearances.

It is a violation of California Public Resource Code, •

Section 4442, to use or operate the engine on any forest-

covered, brush-covered, or grass-covered land unless

the exhaust system is equipped with a spark arrester, as

defined in Section 4442, maintained in effective working

order. Other states or federal jurisdictions may have

similar laws.

Contact the original equipment manufacturer, retailer, or

dealer to obtain a spark arrester designed for the exhaust

system installed on this engine.

Replacement parts must be the same and installed in the •

same position as the original parts.

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WARNING Hazardous Voltage - Contact with power

lines can cause electric shock or burn.

Lifting Hazard / Heavy Object - Can cause

muscle strain or back injury.

If lifting or hoisting equipment is used, DO NOT contact •

any power lines.

DO NOT lift or move generator without assistance.•

DO NOT lift unit by roof as damage to generator •

will occur.

WARNING Starter and other rotating parts can

entangle hands, hair, clothing, or accessories.

NEVER operate generator without protective housings, •

covers, or guards in place.

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.•

Before servicing, remove 15 Amp fuse from control panel •

and disconnect Negative (NEG or -) battery cable.

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.

CAUTION Excessively high operating speeds increase

risk of injury and damage to generator.

Excessively low speeds impose a heavy load on generator.

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.•

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, contact your •

authorized dealer.

Operate generator only on level surfaces.•

Adequate, unobstructed flow of cooling and ventilating air •

is critical to correct generator operation.

The access panels/doors must be installed whenever the •

unit is running.

DO NOT expose generator to excessive moisture, dust, •

dirt, or corrosive vapors.

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.

Start generator and let engine stabilize before connecting •

electrical loads.

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Installation

Equipment Description

This product is intended for use as an optional residential

generator 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 inconvenience. This product does not qualify

for emergency standby as defined by NFPA 70 (NEC).

Every effort has been made to ensure that information in this

manual is accurate and current. However, we reserve the

right to change, alter, or otherwise improve the product and

this document at any time without prior notice.

Only current licensed electrical and plumbing

professionals should attempt home generator system

installations. Installations must strictly comply with all

applicable codes, industry standards and regulations.

Home Owner Responsibilities

 • Readandfollowtheinstructionsgiveninthe

operator’s manual.

 • Followaregularscheduleinmaintaining,caringfor

and using your home generator, as specified in the

operator’s manual.

If you have questions about intended use, ask your installer

or dealer or call (800) 743-4115 between 8:00 AM and

5:00 PM CT.

Installing Dealer/Contractor Responsibilities

 • Readandobservethesafetyrules.

 • InstallonlyanULapprovedtransferswitchthatis

compatible with the generator.

 • Readandfollowtheinstructionsgiveninthis

installation and start-up manual.

If operating the generator below 40° F (5° C), it is HIGHLY

RECOMMENDED that a battery warmer be installed. This

item is available at your local servicing dealer.

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

generator for any damage that may have occurred

during shipment.

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.

Shipment Contents

The generator is supplied with:

 • Pre-attachedmountingpad

 • Fully-servicedoil/lubricatingsystem

 • Flexiblefuelhook-uphose

 • Installationandstart-upmanual

 • Operator’smanual

 • Engineoperator’smanual

 • Installationchecklist

 • Accessdoorkeys

 • Spare15AmpATO-typefuse

 • Two-pincontrolpanelconnector

 • Ten-pincontrolpanelconnector

 • Oildraintray

 • Touchuppaint

 • Roofhardware

 • RemoteLEDindicatorkit(LED/plate/screws)

Not supplied:

 • Startingbattery(seepage16)

 • Connectingwireandconduit

 • Fuelsupplyvalves/plumbing

 • Crane,liftingstraps,chainsorcables

 • Holepunchesfor16gasteel

 • Torquescrewdriver,5to50inch-poundrange

 • Voltage/frequencymeter

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Generator Location

Before installing generator, consult with homeowner and

convey the following guidelines which may affect the desired

installation location.

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. 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itwillnotaffectorobstruct

any services (including covered, concealed and

underground), such as telephone, electric, fuel,

irrigation, air conditioning, and so forth.

 • 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transfer

switch and fuel supply to reduce the length of wiring,

conduit, and piping.

Laws or local codes may regulate the distance to the

fuel supply.

The minimum (MIN) clearances from aerial view of generator

(B) to combustible (D), and non-combustible (A) materials

are shown below.

 • Thesedistancesareprovidedtogivegeneratorlocation

guidance relative ONLY to combustibles, generator

cooling, and maintenance.

 • Theminimumdistancesinthefigureareasshown.

All four sides of the generator cannot be enclosed

or restricted, even if the minimum distances are

maintained. DO NOT connect (A) and/or (D) to (E)

 • Aroofcannotbeused.

 • Exhaust(C) must not be allowed to accumulate.

A Non-Combustible material with Fire Resistant Rating of

1 hour or greater

B Home Standby Generator

C Engine Exhaust

D Combustible Material or Structure with a Fire

Resistance Rating of less than 1 hour.

E Any structure or material. DO NOT connect (A) and/or

(D) to (E).

A

B

E

D

E

C

3’

(1m)

5’ (1.5m)

3’

(1m)

3’

(1m)

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.

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.

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Electrical and Fuel Inlet Locations

The 3/4 inch N.P.T. fuel inlet connector (A) and electrical

inlet location (B) is shown:

The home 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.

Lifting the Generator

The generator weighs more than 350 pounds (159 kg).

Proper tools, equipment and qualified personnel should be

used in all phases of handling and moving the 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.

B

A

WARNING Hazardous Voltage - Contact with power

lines can cause electric shock or burn.

Lifting Hazard / Heavy Object - Can cause

muscle strain or back injury.

If lifting or hoisting equipment is used, DO NOT contact •

any power lines.

DO NOT lift or move generator without assistance.•

DO NOT lift unit by roof as damage to generator •

will occur.

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Access Ports

The home generator is equipped with several access

openings and a removable roof to permit simple oil and

filter servicing.

To remove roof:

Remove the four screws and lift off. Replace roof in

reverse order.

To remove access cover:

Remove the two screws, tilt cover out, and lift cover off

panel. Replace cover in reverse order.

To remove side panel (if necessary):

1. Remove roof.

2. Remove screw(s) attaching side panel.

3. Pull panel outward (away) from unit while pulling panel

upward and out of base.

To install side panel:

1. Guide bottom of side into base.

2. Push panel until it is flush with sides.

3. Replace panel screw(s).

4. Replace roof and screws.

Each home generator is suppied with a set of identical keys.

These keys fit the locks that secure the access door.

To open access door:

1. Insert key into lock of access door handle and turn key

one quarter turn counterclockwise.

2. Grasp door’s handle and turn one quarter turn

counterclockwise to open. Remove key.

To close access door:

1. Close door and turn door’s handle one quarter

turn clockwise.

2. Insert key into lock of door handle and turn key one

quarter turn clockwise. Remove key.

The Gaseous Fuel System

The information below is provided 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.

TO THE INSTALLER: Consult with the generator 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(supplied)between

the generator fuel inlet port and rigid piping to prevent

thermal expansion or contraction from causing

excessive stress on the piping material.

WARNING Contact with muffler and engine parts can

result in serious burns.

DO NOT touch hot parts and AVOID hot exhaust gases.•

Allow equipment to cool before touching.•

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 nor

contact nor run through any wall, floor, or partition.

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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.•

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Fuel Consumption

Estimated fuel supply requirements at half and full load for

natural gas and LP vapor fuels are shown below.

Fuel Pipe Sizing

The tables below 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.

Required Propane Tank Size

The required size of the propane tank at various

temperatures when kept at least half full is shown below

in the chart. Given the gas withdrawal rate and the lowest

average winter temperature, an installer can specify the

required LP storage tank size.

Natural Gas LP Vapor

1/2 Load Full Load 1/2 Load Full Load

84 C 162 C 35 C 65 C

84,000 B 162,000 B 86,375 B 163,625 B

C = Cubic feet per hour

B = BTU’s per hour

NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft

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 Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=0.65

NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft

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) Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=1.50

Physical Properties LP Vapor Natural

Gas

Normal Atmospheric State Gas Gas

Boiling Point (in °F):

Initial

End

-44

-259

Heating Value:

BTU per gallon (Net LHV*)

BTU per gallon (gross**)

Cubic feet (gas)

83,340

91,547

2,500

63,310

1,000

Density*** 36.39 57.75

Weight† 4.24 2.65

Octane Number:

Research

Motor

110+

97

110+

* 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

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 • Forpoweroutputconnection,use#8AWGminimum300volt75°C-90°Ccopperwire,(ref.NECTable310.16,100ft.Use

National Electric Code for correction factors and wire size calculations.)

 • ForUtilityCircuitconnectionuse#14AWGminimum300volt75°C-90°Ccopperwire

 • Fortransferswitchcommunicationuse#18AWGtwistedpairconductors,nogreaterthan200ftinlength,300volt

75°C-90°C copper wire

 • Whenconnectingtotheconnectorplugs,fastenonlyonewiretoeachconnectorscrew.

 • Torqueconnectorplugscrewsto7in-lb(7.9Newtonmeter).

System Connectors

Except for the power output and grounding connectors, all signal wire connections are made to removable two- or ten-pin

connector plugs. Compare this illustration with your generator to familiarize yourself with the location of these important

connections. Count down to the proper pin location on the control board since visual alignment with the decal can

be misleading:

A - Fault Contacts — Use NO, COM and NC to hook up a

siren, light, etc. to alert you in case of a fault. Contacts

reverse state (NO goes to NC and vice versa) upon a

fault condition.

B - Transfer Switch Communication — Connect to transfer

switch control board for communication interface using

18AWG copper twisted pair wire.

C - Remote LED Output — Use this to hook up the remote

LED supplied with the generator. The remote LED will

turn on and off in a series of blinks if certain faults are

detected in the generator.

D - +12 Volt DC, .5 Amp Output — Internal power supply.

E - 240 Volt Utility — Use to connect the 240V leads from

the transfer switch to the generator.

F – Ten-pin Connector Plug

G – Two-pin Connector Plug

B

A C D E F

G

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14 BRIGGSandSTRATTON.COM

Generator AC Connection System

A single-phase, three-wire AC connection system is used in

the home 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, as shown schematically and as wiring diagram. A

complete schematic and wiring diagram can be found later in

this manual.

Neutral is not bonded to ground at generator.

Grounding the Generator

Ground the home generator per applicable codes, standards,

and regulations. The generator GND lug is located inside the

control panel box.

Utility Circuit Connection

“240V Utility” leads must be routed in conduit. The

“240V Utility” leads deliver power to the generator’s circuit

board, optional battery warmer and optional oil warmer. This

power also charges the battery. When power on these leads

is lost, the generator will start.

Using provided 2 pole connector plug and installer-supplied

minimum 300V, 14 AWG copper wire, connect each control

circuit terminal in the generator to the two-amp fuse

terminals in the automatic transfer switch.

When making connections, obey wire type and torque

specifications printed on the circuit breaker and neutral/

ground connector.

Transfer Switch Communication

(Units with ACCM II or later transfer switch only)

Using#18AWGtwistedpairconductors,nogreaterthan

200 ft in length, connect Tx Rx and Tx Rx GND from the

generator control panel (A) to T/R and GND on the transfer

switch control board (B).

33

240V

11

22

44

120V

1122 33 44 0

Neutral

Power Winding

Circuit

Breaker

Ground

To Transfer Switch

Line 1

Neutral

Line 2

Circuit

Breaker

B

A

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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, high temperature, over speed, and other

conditions. Refer to Fault Detection System in the operator’s

manual for more detailed information.

The owner will use the remote LED indicator to observe

the status of the home generator system. The remote LED

will turn on and off in a series of blinks if certain faults are

detected in the generator system. Consult with the owner

for a convenient location. Locate the electrical box in an

area visible by the home owner such as near a garage door

opener or security control panel.

To install the remote LED indicator:

1. Push the LED through the mounting plate from

the front until it snaps in place. The LED is

polarity sensitive.

2. Using provided 10 pole connector and installer-supplied

minimum 18 AWG wire, connect the remote LED to the

generator control board. Use wire nuts to attach wire to

LED leads.

3. Attach mounting plate to installer-supplied electrical box.

System Control Panel

The home generator control panel, located inside the

generator housing, is shown below.

Brief descriptions of the controls used during installation are:

A - Set Exercise — Used to set the exercise cycle.

B - Circuit Breaker — Must be ON to supply power to the

transfer switch.

C - 15 Amp Fuse —- Protects DC control circuits.

D - System Switch — Switches modes to OFF or AUTO.

E - MANUAL OVER-RIDE — Used to manually start and stop

the generator.

F - Digital Display — Displays running time in hours or

fault codes.

More information may be found in Controls in the

operator’s manual.

System Switch

This two-position switch is the most important control on

the home generator 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. When utility power is restored, lets the

engine stabilize internal temperatures, shuts off the

generator, and waits for the next utility power outage.

 • “OFF” position turns off running generator, prevents

unit from starting and resets any detected faults.

15 Amp Fuse

Protects the home generator DC control circuits. If the fuse

has ‘blown’ (melted open) or was removed, the engine

cannot crank or start. Replace the fuse using only an

identical ATO 15A fuse. One spare fuse is supplied with the

unit. If fuse was blown or removed, you will need to reset

the exercise timer (see Setting Exercise Timer).

B

A

C E F

D

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16 BRIGGSandSTRATTON.COM

Final Installation Considerations

Engine Oil

The engine is shipped from the factory pre-run and filled

with synthetic oil (API SJ/CF 5W-30). This allows for system

operation in a wide range of temperature and climate

conditions. Before starting the engine, check oil level and

ensure that engine is serviced as described in the engine

operator’s manual.

The use of synthetic oil does not alter the required oil

change intervals described in the engine operator’s manual.

Battery

The installer must supply and install a valve-regulated

rechargeable 12 volt starting battery. The starting battery

MUST conform to the specifications shown in this chart.

Battery Specifications

Volts 12 Volt DC

Amps (MIN) 350 CCA (cold cranking amps)

Type AGM (Absorbent glass mat)

Terminal Hardware M8

Dimensions (MAX):

Width 5.325 inches (135mm)

Length 7.875 inches (200mm)

Height 6.875 inches (175mm)

Install the battery as described in Servicing the Battery in the

Maintenance section of the operator’s manual. Always make

sure the NEGATIVE cable is connected last and that the red

POSITIVE terminal insulator is fully in place.

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.

Initial Start-up (No Load)

Unit has been set-up for NG operation at the factory.

Fuel conversion, if needed, must be completed prior to

performing these steps. See Fuel Conversion later in

this section.

Before operating the home generator or placing it into

service, inspect the entire installation carefully. Then begin

testing the system without any electrical loads connected,

as follows:

1. Remove four screws that secure control panel to

enclosure to expose unit’s circuit breaker.

2. Connect an accurate frequency meter to line side of

generator’s main circuit breaker.

3. Set generator’s main circuit breaker to ON

(closed) position.

4. Install 15 Amp fuse in control panel.

5. Set generator’s system switch to AUTO.

6. Push and hold MANUAL OVER-RIDE button on control

panel for about six seconds. Engine will start.

When the 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.

7. Listen for unusual noises, vibration or other indications

of abnormal operation. Check for oil leaks while

engine runs.

8. Let engine warm up for about five minutes to allow

internal temperatures to stabilize.

9. Check generator output at load side of circuit breaker.

Voltage should be between 239 - 262 Volts, frequency

should be between 62.0 - 62.5 Hz.

If either parameter is outside these ranges, perform

Engine Adjustment described later in this section.

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 119 - 131 Volts.

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 Adjustment.

11. Push and hold MANUAL OVER-RIDE button on control

panel again until engine stops.

12. Reinstall control panel into enclosure.

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 • Maintenance in the operator’s manual and engine

manual for oil fill information.

Damage to equipment resulting from failure to follow this •

instruction will void engine and generator warranty.

WARNING Battery posts, terminals and related

accessories contain lead and lead compounds, chemicals

known to the State of California to cause cancer and

reproductive harm. Wash hands after handling.

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Engine Adjustment

There are regional variances in the composition of natural

gas. Each home generator unit leaves the factory set for

NG operation. If the generator output voltage or frequency

measured during Initial Start-Up is outside the listed ranges,

the combustibility of the gas supplied at the installation

site may be substantially different from the fuel used at

the factory.

To adjust the engine for this difference, proceed as follows.

1. Remove four screws that secure control panel to

enclosure to expose unit’s circuit breaker.

2. Connect an accurate frequency meter to line side of

generator’s main circuit breaker.

3. Ensure that the 15 Amp fuse is installed.

4. Set the generator’s main circuit breaker ON.

5. Set the generator’s system switch to AUTO.

6. Push MANUAL OVER-RIDE on control panel. When the

engine starts, allow it to warm up for five minutes.

7. Normal no load frequency is 62.0 to 62.5 Hz. If

adjustment is needed at no load, slowly rotate the

governor adjustment knob (A) clockwise and/or

counterclockwise until frequency is 62.0 to 62.5 Hz.

8. Turn service disconnect to transfer switch OFF.

After a short time delay, transfer switch will connect

to generator.

9. Load generator to full load.

10. After load stabilizes, frequency should be

above 57.0 Hz.

11. If frequency is below 57.0 Hz, slowly rotate the

governor adjustment clockwise and/or counterclockwise

until frequency is above 57.0 Hz.

12. Turn service disconnect to transfer switch ON. Transfer

switch will connect to utility power after five minutes.

13. Push and hold MANUAL OVER-RIDE button on control

panel until engine stops.

14. After the engine has stopped:

  • Ifanadjustmentwasmadeinstep11,repeatsteps

2 through 7.

  • Ifanadjustmentwasnotmadeinstep11,proceed

to step 15.

If no load frequency falls out of the no load range shown

in step 7 after full load adjustment is made, contact an

authorized service center.

15. Reinstall control panel into enclosure.

Test Shutdown(s) Procedure

The installer will test the system to verify that diagnostic

messages are correctly shown on the system control panel

digital display, as follows:

FC_1 - Low Battery

No test procedure required for this fault.

FC_2 - Low Oil Pressure:

Locatewire#85connectedtotheoilpressureswitch(B):

Connect an installer-supplied jumper wire to wire

#85.WiththesystemswitchinAUTO position, push

MANUAL OVER-RIDE to start the generator. With the

generator running, connect other end of jumper to a good

ground location such as the engine block. The generator will

shut down and FC_2 will be displayed on the system control

panel. Remove the jumper wire. Turn the system switch to

OFF for 30 seconds to clear the fault.

A

B

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18 BRIGGSandSTRATTON.COM

FC_3 - Low Voltage

With the system switch in AUTO position, push

MANUAL OVER-RIDE to start the generator. With the

generator running at no load, turn the generator circuit

breaker to OFF. The generator should shut down and FC_3

will be displayed on the system control panel. Turn the

system switch to OFF for 30 seconds to clear the fault. Turn

the circuit breaker to ON position.

FC_4 - Engine Does Not Start

With the generator not running, turn the installer supplied

manual fuel valve to the OFF position. With the system

switch in AUTO, turn off utility power. The engine will crank,

attempting to start. After approximately a two-minute start

attempt (10 seconds of crank, 10 seconds of rest) the

generator should terminate the start attempt and FC_4 will

be displayed on the system control panel. Turn the system

switch to OFF for 30 seconds to clear the fault. Turn the

installer supplied fuel valve to the ON position.

FC_5 - Low Frequency

With the system switch in AUTO position, push and hold

MANUAL OVER-RIDE to start the generator. Locate the

governor lever and SLOWLY lower engine speed. Do NOT

change engine speed using the governor adjustment. When

the generator reaches a speed slower than 55 Hz for three

seconds the generator will shut down and FC_5 will be

displayed on the system control panel. Turn the system

switch to OFF for 30 seconds to clear the fault.

FC_6 - Engine Overspeed

With the system switch in AUTO position, push and hold

MANUAL OVER-RIDE to start the generator. Locate the

governor lever and SLOWLY raise engine speed. Do NOT

change engine speed using the governor adjustment.

When the generator output frequency is 65-70 Hz after

three seconds the generator will shut down and FC_6 will

be displayed on the system control panel. If the generator

output frequency is greater than 70 Hz the generator will

shut down immediately. Turn the system switch to OFF for

30 seconds to clear the fault.

FC_7 - High Temperature

Locatewire#95connectedtothetemperatureswitch(A):

Connectaninstaller-suppliedjumperwiretowire#95.

With the system switch in AUTO position, push and hold

MANUAL OVER-RIDE to start the generator. With the

generator running, connect other end of jumper to a good

ground location such as the engine block. The generator

should shut down and display FC_7 on the system control

panel. Remove the jumper wire. Turn the system switch to

OFF for 30 seconds to clear the fault.

FC_8 - Transfer Switch Fault

(Units with ACCM II or later transfer switch only)

Verify that utility power is present at the automatic transfer

switch. With the system switch in AUTO position, carefully

remove one of the 2 Amp fuses from the transfer switch.

FC_8 will display on the system control panel. Carefully

reinstall the fuse in the transfer switch, then turn the system

switch to OFF for 30 seconds to clear the fault.

Analyze Test Results

If any test procedure above does not cause the generator

to shut down and display the indicated fault, repair the fault

condition before putting the unit into service.

A

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Fuel Conversion

The engine of your home generator system is factory

calibrated to run on natural gas (NG). It may also be

operated on liquefied petroleum (LP) vapor. There is no

additional hardware/equipment required to switch between

either fuel. However, LP fuel inlet pressure must be between

11 and 14 inches water column at full load with all gas

appliances turned on and operating.

To configure the fuel system for LP use:

1. Set generator’s system switch to OFF.

2. Remove 15 Amp fuse from control panel.

3. Open oil fill access panel.

4. Connect the fuel select solenoid by joining the two-pin

electrical connector (C).

5. Reinstall 15 Amp fuse in control panel.

6. Set generator’s system switch to AUTO.

7. Close access panels.

The system is now ready to operate automatically using

LP vapor fuel.

C

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20 BRIGGSandSTRATTON.COM

Schematic Diagram

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