Simplicity 076454-00 Guide d'installation

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This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards

Association) standard C22.2 No. 100-4 (motors and generators).

Questions?

Help is just a moment away!

Call: Generator Helpline

800-732-2989 M-F 8-5 CT

Generator Systems

Installation Manual

48000 Watt

80006691 Rev A

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2 BRIGGSandSTRATTON.COM

Thank you for purchasing this quality-built Briggs & Stratton generator. We are 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

generator will provide many years of dependable service.

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

how to avoid them. This product is only for use as an optional 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.

Save these original 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 worldwide who provide quality service. You can also contact Briggs &

Stratton Customer Service by phone at 800-732-2989 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

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3

Table of Contents

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

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

Owner Responsibilities.........................................7

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

Installation Checklist ..........................................8

Generator Placement ..........................................9

Exhaust Side of Generator ......................................9

Placement of Standby Generator to

REDUCE THE RISK OF CARBON MONOXIDE POISONING ............10

Placement of Standby Generator to REDUCE THE RISK OF FIRE .......12

Other General Location Guidelines...............................16

Fuel Conversion .............................................20

Fuel Pressure ...............................................20

System Connectors ..........................................21

Grounding the Generator ......................................23

System Control Panel.........................................24

Final Installation Considerations ................................24

Initial Start-up (No Load)......................................25

Controls ..................................... 26

Operation .................................... 26

Automatic Operation Sequence .................................26

Setting Exercise Timer ........................................26

Installation Inspection ........................................26

Wiring Diagram .............................................29

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Save These Instructions

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.

Fire

Toxic Fumes

Explosive Pressure

Rotating Fan Blade

Lift Hazard Read Manual

Exploding BatteryRotating Belt/Pulley

Chemical BurnAuto Start

Hot SurfaceRotating Parts

Electrical ShockExplosion

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.

WARNING Running engine gives off carbon monoxide,

an odorless, colorless, poison gas.

Breathing carbon monoxide could result in death,

serious injury, headache, fatigue, dizziness,

vomiting, confusion, seizures, nausea or fainting.

• Operate this product ONLY outdoors in an area that will

not accumulate deadly exhaust gas.

• Keep exhaust gas away from any windows, doors,

ventailation intakes, soffit vents, crawl spaces, open

garage doors or other openings that can allow exhaust

gas to enter inside or be drawn into a potentially occupied

building or structure.

• Carbon monoxide detector(s) MUST be installed and

maintained indoors according to the manufacturer’s

instructions/recommendations. Smoke alarms cannot

detect carbon monoxide gas.

WARNING Storage batteries give off explosive

hydrogen gas during recharging.

Slightest spark will ignite hydrogen

and cause explosion, resulting in

death or serious injury.

Battery electrolyte fluid contains

acid and is extremely caustic.

Contact with battery contents could 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.

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WARNING Generator produces hazardous voltage.

Failure to properly ground generator could result

inelectrocution.

Failure to isolate generator from utility power could

result in death or serious injury to electric utility

workers due to backfeed of electrical energy.

• 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 generator, operating this

equipment imprudently, neglecting its maintenance or

being careless could 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, which could cause

burns, fire or explosion resulting in death or

serious injury.

• 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 Exhaust heat/gases could ignite

combustibles or structures resulting in

death or serious injury.

Contact with muffler area could cause

burns resulting in serious injury.

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

• Allow equipment to cool before touching.

• Exhaust outlet side of weatherproof enclosure must

have at least 5 ft. (1.5m) minimum clearance from any

structure, shrubs, trees or any kind of vegetation.

• Standby generator weatherproof enclosure must be at

least 5 ft. (1.5m) from windows, doors, any wall opening,

shrubs or vegetation over 12 inches (30.5 cm) in height.

• Standby generator weatherproof enclosure must have a

minimum of 5 ft. (1.5 m) overhead clearance from any

structure, overhang, or trees.

• DO NOT place weatherproof enclosure under a deck or

other type of structure that may confine airflow.

• Use only flexible fuel line provided. Connect provided fuel

line to generator. DO NOT use with or substitute any other

flexible fuel line.

• Smoke detector(s) MUST be installed and maintained

indoors according to the manufacturer’s instructions/

recommendations. Carbon monoxide alarms cannot

detect smoke.

• Keep at least minimum distances shown in General

Location Guidelines to insure for proper generator cooling

and maintenance clearances.

• Replacement parts must be the same and installed in the

same position as the original parts.

WARNING Hazardous Voltage - Contact with power

lines could cause electric shock or burns,

resulting in death or serious injury.

Lifting Hazard / Heavy Object - Could result

in serious 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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CAUTION Installing the 15A fuse could cause the

engine to start at any time without warning

resulting in minor or moderate injury.

• 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.

WARNING Moving parts could crush and cut.

Starter and other rotating parts could

entangle hands, hair, clothing, or

accessories resulting in serious injury.

• NEVER operate generator without protective housings,

covers, or guards in place.

• DO NOT wear loose clothing, jewelry or anything that

could 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.

WARNING Hot pressurized coolant could cause serious

injury.

• DO NOT open radiator cap when hot.

• Before servicing, allow coolant to cool.

CAUTION Excessively high operating speeds could

result in minor injury and/or equipment damage.

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 could 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 could 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 or makes unusal noises.

NOTICE Exceeding generators wattage/amperage

capacity could 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 only for use as an optional 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.

NOTICE This product does NOT qualify for either an

emergency standby or legally required standby system as

defined by NFPA 70 (NEC).

• Emergency generator systems are intended to

automatically supply illumination, power, or both, to

designated areas and equipment in the event of failure

of the normal supply. Emergency systems may also

provide power for such functions as ventilation where

essential to maintain life, where current interruption

of the normal supply would produce serious life

safety or health hazards.

• Legally Required standby generator systems are

intended to automatically supply power to selected

loads in the event of failure of the normal source

which could create hazards or hamper rescue or fire-

fighting operations.

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 generator system

installations. Installations must strictly comply with all

applicable codes, industry standards and regulations.

Owner Responsibilities

• Read and follow the instructions given in the

operator’smanual.

• Follow a regular schedule in maintaining, caring for

and using your generator, as specified in the operator’s

manual.

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.

Unpacking Precautions

The unit is shipped ready for installation on a prepared

reinforced cement slab or engineered base. 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 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 system is supplied with:

• Fully-serviced coolant system

• Fully-serviced oil/lubricating system

• Flexible steel fuel hook-up hose

• Installation and start-up manual

• Operator’s manual

• Spare access door keys

• Spare 15 Amp ATO-type fuse

• Touch up paint

Not Supplied:

• Carbon monoxide detector(s)

• Smoke detector(s)

• Starting battery

• Reinforced concrete pad

• Connecting wire and conduit

• Fuel supply valves/plumbing

• Two 60” lengths of 2” Schedule 40 pipe (NOT conduit)

• Crane, lifting straps, chains or cables

• Torque screwdriver, 5 to 50 inch-pound range

• Voltage/frequency meter

• Various special tools and equipment

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Installation Checklist

Carbon Monoxide (CO) Detector

Carbon Monoxide (CO) detector installed and in working

order.

Smoke detector(s) installed and in working order.

Placement

Required permits have been obtained.

Generator placed in an area free from Carbon Monoxide

(CO) buildup. See Placement of Standby Generator to

Reduce the Risk of Carbon Monoxide Poisoning.

Generator placed in an area compliant to NFPA 37. See

Placement of Standby Generator to Reduce the Risk of

Fire.

Generator placed in an area free from water damage. See

Other General Location Guidelines.

Generator placed in an area free from utility and other home

systems. See Other General Location Guidelines.

Generator placed in a debris free zone. See Other General

Location Guidelines.

Generator placed on flat ground with provisions for water

drainage. See Other General Location Guidelines.

Fuel

Generator is connected to fuel source with flexible fuel line,

has no fuel leaks and conforms to local codes. See The

Gaseous Fuel System.

Proper fuel pressure has been measured with all gas

appliances operating. See The Gaseous Fuel System.

Fuel system has been configured for the proper fuel supply:

Natural gas (NG) or liquefied petroleum ( LP). See Fuel

Conversion.

Fuel type: (circle one) NG LP

Fuel pipe size used: (circle one) 3/4” 1” 1-1/4” 1-1/2”

See NFPA 54, Chapter 6.

Fuel pressure at fuel inlet port with generator on and at

full load and all gas appliances turned on and operating

____________________.

Electrical

Generator neutral is connected to Automatic Transfer

Switch. See Generator AC Connection System.

Generator is grounded. See Grounding the Generator and

NFPA 70,NEC, Article 250.35B.

Generator is connected to the transfer switch with the

specified wiring. See Utility Circuit Connection and

Transfer Switch Communication.

Generator is connected to the transfer switch with the

specified wiring. #18AWG twisted pair wiring from the

generator control panel to the transfer switch is installed

in a separate conduit from high voltage wires unless

the insulation rating on all wiring is rated for 600V. See

Transfer Switch Communication.

Dipswitches in most transfer switches must be set to

correspond to the wattage of the generator. See Transfer

Switch Operator/Installation Manual.

Operation

Cold weather kit is installed in temperatures below 30°F

(4°C). See Cold Weather Kit.

Correct battery type is installed and fully charged. See

Final Installation Considerations.

Generator engine oil level is at full mark. See Final

Installation Considerations.

Circuit breaker is in the ON position.

Utility was shut off to test the operation of generator and

transfer switch. Note any fault codes and make corrections

as required.

AC Voltage Output___________________________.

Frequency Output___________________________.

Owner Information

Name: ___________________________________________

Address: __________________________________________

Phone/e-mail: ______________________________________

Unit Information

Generator Model: ___________________________________

Generator Serial Number: ____________________________

Installing Contractor Information

Name: ___________________________________________

Address: __________________________________________

Phone/FAX: _______________________________________

Electrician: _______________________________________

Signature: ________________________________________

Plumber: _________________________________________

Signature: ________________________________________

Inspector Information

Name: ___________________________________________

Address: __________________________________________

_________________________________________________

Title: _____________________________________________

Inspection Date: ____________________________________

This generator has been installed per the manufacturer’s

instructions:

Installing Contractor Signature: ____________________________

Date: _________________________________________________

Proper installation of the home generator requires the completion of the following tasks:

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Before installing the generator, consult with the owner

and convey the following requirements, which must be

satisfied before the installation is complete.

There are two equally important safety concerns in regards

to carbon monoxide poisoning and fire. There are also

several general location guidelines that must be met before

the installation is considered complete.

Generator Placement

WARNING Running engine gives off carbon monoxide, an

odorless, colorless, poison gas.

Breathing carbon monoxide could result in death,

serious injury, headache, fatigue, dizziness, vomiting,

confusion, seizures, nausea or fainting.

• Operate this product ONLY outdoors in an area that will not

accumulate deadly exhaust gas.

• Keep exhaust gas away from any windows, doors, ventailation

intakes, soffit vents, crawl spaces, open garage doors or other

openings that can allow exhaust gas to enter inside or be drawn

into a potentially occupied building or structure.

• Carbon monoxide detector(s) MUST be installed and maintained

indoors according to the manufacturer’s instructions/

recommendations. Smoke alarms cannot detect carbon

monoxide gas.

Exhaust Side of Generator

A Exhaust outlet side of weatherproof enclosure

B Weatherproof enclosure opposite exhaust side

A

B

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Placement of Standby Generator to REDUCE THE RISK OF CARBON MONOXIDE POISONING

The figure below demonstrates POTENTIAL points of entry for Carbon Monoxide Gas.

All fossil fuel burning equipment, such as standby

generators, contains carbon monoxide (CO) gas in the

engine exhaust. CO gas is odorless, colorless and tasteless

and is unlikely to be noticed until a person is overcome.

CO gas can kill you so it is required that the following is

included as part of the installation:

• Install generator outdoors in an area that 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 or structure.

• By law it is required in many states to have a

Carbon Monoxide (CO) detector in operating

condition in homes and other structures occupied

by people. Carbon monoxide detector(s) (A) MUST

be installed and maintained indoors according to

the manufacturer’s instructions / recommendations.

A CO monitor is an electric device that detects

hazardous levels of CO. When there is a buildup of

CO, the monitor will alert the occupants by flashing

visual indicator light and alarm. Smoke alarms

cannot detect CO gas.

• Nearby structures may be exposed to the engine

exhaust from your standby generator and must be

considered when installing your standby generator.

• Ensure exhaust gas is kept away from:

B overhead doors

C doors

D windows (not shown)

E other openings that can allow exhaust gas to enter

inside or be drawn into a potenially occupied building

or structure.

A

C

B B

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• Direct the standby generator exhaust away from or

parallel to the building or structure. DO NOT direct

the generator exhaust towards a potentially occupied

building, structure, windows, doors, ventilation

intakes, soffit vents, crawl spaces, open garage

doors or other openings where exhaust gas could

accumulate and enter inside or be drawn into a

potentially occupied building or structure.

• DO NOT place standby generator in any area where

leaves or debris normally accumulates. Position

standby generator in an area where winds will carry

the exhaust gas away from any potentially occupied

building or structure.

Other General Location Guidelines

• Place the standby generator in a prepared location

that is flat and has provisions for water drainage.

• Install the standby generator 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 or outlet openings.

• Install the standby generator where it will not

affect or obstruct any services (including covered,

concealed and underground), such as telephone,

electric, fuel (natural gas / LPG vapor), irrigation, air

conditioning, cable, septic, sewer, well and so forth.

• Install the standby generator where leaves, grass,

snow, etc will not obstruct air inlet and outlet

openings. If prevailing winds will cause blowing or

drifting, you may need to construct a windbreak to

protect the unit.

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Placement of Standby Generator to REDUCE THE RISK OF FIRE

The National Fire Protection Association (NFPA) standard

NFPA 37 establishes criteria for minimizing the hazard

of fire during the installation and operation of stationary

combustion engines. NFPA 37 limits the spacing of an

enclosed generator from openings in walls, structures and

combustible materials outside the enclosure.

The placement requirements provided are based on

compliance to NFPA 37 2010 section 4.1.4.

WARNING Exhaust heat/gases could ignite combustibles or

structures resulting in death or serious injury.

• Exhaust outlet side of weatherproof enclosure must have at

least 5 ft (1.5 m) minimum clearance from any structure,

shrubs, trees or any kind of vegetation.

• Standby generator weatherproof enclosure must be at least

5 ft (1.5 m) from windows, doors, any wall opening, shrubs or

vegetation over 12 inches (30.5 cm) in height.

• Standby generator weatherproof enclosure must have a

minimum of 5 feet (1.5 m) overhead clearance from any

structure, overhang or trees.

• DO NOT place weatherproof enclosure under a deck or other

type of structure that may confine airflow.

• USE ONLY flexible steel fuel line provided. Connect provided

fuel line to generator, DO NOT use with or substitute any other

flexible fuel line.

• Smoke detector(s) MUST be installed and maintained indoors

according to the manufacturer’s instructions/ recommendations.

Carbon monoxide alarms cannot detect smoke.

• DO NOT place weatherproof enclosure in manner other than

shown in illustrations.

Examples of standby generator locations to reduce the

risk of fire:

Legend for Generator Locations to reduce the risk of fire.

A Standby weatherproof enclosure must be at least 5

ft (1.5 m) from windows, doors, any wall opening,

shrubs or vegetation over 12 inches (30.5 cm) in

height.

B Exhaust outlet side of weatherproof enclosure must

have at least 5 ft (1.5 m) minimum clearance from

any structure, shrubs, trees or any kind of vegetation.

C Standby weatherproof enclosure must have a

minimum of 5 feet (1.5 m) overhead clearance from

any structure, overhang or trees.

NOTICE DO NOT place weatherproof enclosure under a

deck or other type of covered structure that may confine

airflow.

Vertical Clearances

A

B C

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Legend for Generator Locations to reduce the risk of fire.

A Standby weatherproof enclosure must be at least 5

ft (1.5 m) from windows, doors, any wall opening,

shrubs or vegetation over 12 inches (30.5 cm) in

height.

B Exhaust outlet side of weatherproof enclosure must

have at least 5 ft (1.5 m) minimum clearance from

any structure, shrubs, trees or any kind of vegetation.

Typical Installations

NOTICE The figures below show the minimum installation distances allowed to structures and items listed in legend.

C Standby weatherproof enclosure must have a minimum

of 5 feet (1.5 m) overhead clearance from any

structure, overhang or trees.

NOTICE DO NOT place weatherproof enclosure under a deck

or other type of covered structure that may confine airflow.

5 ft (1.5 m) min.

Standby

5 ft (1.5 m) min.

Exhaust

5 ft (1.5 m) min.

Standby

5 ft (1.5 m) min.

Exhaust

B

A

B

A

B

A

B

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Concrete Slab

At the appropriate location, construct a concrete slab:

• 28 day compression strength of 3000 psi (200 MPa)

• Minimum 5” (13cm) thick

• Minimum 6” (15cm) wider than enclosure on all sides

(shown as D in figure)*

• Strengthen slab with No. 6 reinforcing bars (on 12”

(30.5cm) centers) or 8 ga. steel wire fabric

(6” (15cm)centers).

Avoid placing reinforcement in entrance stub-up area (shown as B).

Attach unit to slab at four corner locations (A) with minimum

5/16” diameter (8mm) (per local requirements) masonry

anchor bolts long enough to secure the unit.

The fuel inlet location (C),the concrete slab, and the exhaust

outlet (E) are shown for reference.

• The standby generator enclosure (F)measures

96” (243 cm) X 37” (94 cm).

A Holes located in base to anchor to pad

B Stub up Area

C Fuel Inlet

D Concrete slab

E Exhaust Outlet

F Standby Generator Enclosure

34-1/4”

87cm

14-3/4”

37.5cm

92”

233.7cm

51”

129.5cm

6”

15.2cm

5”

12.7cm

7-1/2”

19cm

A

D

C

B

E

F

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Electrical and Fuel Inlet Locations

A through-slab power cable stub-up is preferred. If stub-

up’s are not used, (B) indicates the recommended location

for punching holes for attaching power conduit. The 1 inch

N.P.T. fuel inlet connector (A) is shown for reference.

Lifting the Generator

The generator weighs approximately 2071 pounds (939 kg).

Proper tools, equipment and qualified personnel should be

used in all phases of handling and moving the generator.

Remove circuit breaker box bottom plate prior to positioning

generator. Two 60” (1.5m) lengths of 2” Schedule 40 pipe (C),

supplied by the installer, are required to lift the generator onto

cement pad. Insert pipes through the lifting holes (D) located

near the unit’s base. Use a spreader bar to ensure that the

chains, straps or cables DO NOT touch the generator’s roof.

Retouch any chipped paint with supplied touch-up paint.

A

B

WARNING Hazardous Voltage - Contact with power

lines could cause electric shock or burns,

resulting in death or serious injury.

Lifting Hazard / Heavy Object - Could result

in serious injury.

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

any power lines.

• DO NOT lift or move generator without assistance.

• Use lifting pipes as described in Lifting the Generator.

• DO NOT lift unit by roof as damage to generator

will occur.

C

D

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Access Ports

The generator is equipped with an enclosure that has several

access doors, as shown above. The doors are named for a

significant component located behind them, as follows:

A - Fuel Inlet port (shown for reference)

B - Control Panel door (may be two doors)

C - Exhaust opening (shown for reference)

D - Coolant/Oil Fill door

E - Battery door

F - Muffler door

The Coolant Fill, Battery and Control Panel doors must be

installed whenever the unit is running to assure proper

cooling, reduce noise and for added safety. The enclosure

also includes muffler and radiator access panels, used only

for cleaning those components. Those panels should remain

closed at all other times.

Each generator is shipped with a set of identical keys. These

keys fit the locks that secure the access ports.

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.

3. Coolant Fill door is unlocked in the same manner. It can

be used for adding coolant or oil.

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.

WARNING Contact with muffler area could cause burns

resulting in serious injury.

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

• Allow equipment to cool before touching.

B

A

C

D

E

F

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17

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 (B) (supplied) between

the generator fuel inlet port (A) and rigid piping to

prevent thermal expansion or contraction from causing

excessive stress on the piping material.

• A union (C) or flanged connection shall be provided

downstream to permit removal of controls.

• A manometer port should be provided (D). A digital

manometer, P/N 19495, is available at your Briggs &

Stratton service center. When the initial test runs are

completed, the manometer is removed and the port

is plugged. 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.

• 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 (E) where condensate is not likely to freeze.

• A minimum of one accessible, approved manual shutoff

valve (F) shall be installed in the fuel supply line within

6 ft (180 cm) of the generator.

• A manual fuel shut-off valve located in the interior of

the building.

• 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.

A Generator Fuel Inlet

B Flexible Fuel Hose

C Union Fitting

D Manometer Test Port

E Sediment Trap

F Manual Shut-off Valve

NOTICE 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.

WARNING Propane

and Natural Gas are extremely

flammable and explosive, which could cause

burns, fire or explosion resulting in death or

serious injury.

• 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 could ignite these fuels and cause

an explosion.

• DO NOT light a cigarette or smoke.

A

B

C

D

E

F

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18 BRIGGSandSTRATTON.COM

Fuel Pipe Sizing

There are numerous on-line or otherwise-published

references for fuel pipe sizing. For example, NFPA 54 -

National Fuel Gas Code, 2006 (Item #: 320-6031-06) is

a common resource. The installer should consider the

specific gravity of gas, compensate for a nominal amount of

restriction from bends and fittings, and refer to federal and

local codes for guidance.

Fuel Conversion

The unit is shipped from the factory calibrated for NG

operation. To convert the engine from NG to LP vapor, follow

these steps:

1. Set generator circuit breaker to OFF.

2. Set control panel system switch to OFF.

3. Remove 15 Amp fuse from system control panel.

4. Locate the fuel selector switch (A) . Using a 6 mm

Allen wrench, turn the selector switch to either

LP or NG.

5. Reinstall 15 Amp fuse in system control panel.

6. Set exercise timer.

Fuel Pressure

Both LP vapor and natural gas fuel supply pressure at the

generator’s fuel inlet port should be between 7 to 11 inches

(18 to 28 cm) of water (in. W.C.) at full load with all gas

appliances turned on and operating. Maximum pressure with

engine OFF at No Load is 13.85 in. W.C.

Power Loss

Air density is less at high altitudes, resulting in less available

engine power. Specifically, engine power will decrease 3%

for each 1,000 feet (300 m) above sea level and 1% for each

10° F (5.6°C) above 77°F (25°C). Generators located in these

conditions, that use power management technology must

have their transfer switch programmed appropriately for this

power decrease.

Fuel Consumption

Estimated fuel supply requirements at half and full load for

natural gas and LP vapor fuels are shown here.

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”.

A

48kW LP Vapor Fuel Consumption

Full Load 1/2 Load Exercise

BTU/hr 785000 462500 197500

CF/ph 314 185 79

m³/ph 8.9 5.2 2.2

GAL/hr 8.2 4.8 2.1

45kW Natural Gas Fuel Consumption

Full Load 1/2 Load Exercise

BTU/hr 717000 429000 207000

CF/ph 717 429 207

m³/ph 20.3 12.1 5.9

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19

A - Fuse Block — Used to connect utility 240 VAC from

fuse block in ATS to the control board. Connect only

one wire per terminal.

B - Two-Pin Terminal Block — Used to connect start

signal wires to the control board. Connect only one

wire per terminal. Torque connector plug screws to 7

in-lb (7.9 Newton meter).

C - Power Connection (Line 1, Line 2 and Line 3) —

Power connection to transfer switch.

D - Neutral and/or Ground Connection — Connect to

transfer switch neutral and gro

System Connectors

Compare this illustration with your generator to familiarize yourself with the location of these connections.

• For power output connection, use 300 volt, 167 °F-194 °F

(75 °C-90 °C) wire. See chart on right for proper wire size.

• For Utility Circuit connection use #14 AWG minimum 300

volt, 167 °F-194 °F (75 °C-90 °C) wire.

• For transfer switch communication use #18 AWG twisted

pair conductors, no greater than 200 ft (60 m) in length,

300volt, 167°F-194 °F (75 °C-90 °C) wire.

*Refer to Generator Data Tag to determine series of generator.

Series 48000* Voltage Rated Amps Wire Size

3 Phase Wye

120/208 167 3/0

3 Phase Wye

139/240 144 2/0

3 Phase Delta

120/240 144 2/0

3 Phase Wye

240/416 83 3 AWG

3 Phase Wye

277/480 72 4 AWG

3 Phase Wye

346/600 57 4 AWG

GND

UTILITY A

UTILITY B

317371

315047

REMOTE

START

CONTACT

80005289

C

A

B

D

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20 BRIGGSandSTRATTON.COM

Grounding the Generator

Ground the generator per applicable codes, standards and

regulations. There are two generator GND lug locations.

The one inside the generator junction box next to the

circuit breaker (A) primary lug and should suffice for most

applications. The second generator GND lug is located on the

frame below the generator circuit breaker cover and should

ONLY be used for a ground rod located at the generator, if

required by local codes.

Shutdown Alarm 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 Shutdown Alarm Detection System in the

operator’s manual and the Control Panel Application

Guide supplied with this generator for more detailed

information.

System Control Panel

The system control panel is a printed circuit board that is

integrated with the control panel of the generator. It contains

all the logic circuits, operator controls, and system displays

necessary to operate, program, and protect the generator.

The system control panel interprets and monitors electrical

inputs from related circuits throughout the unit.

Please refer to the supplied Control Panel Application Guide

for detailed information about the control panel.

Final Installation Considerations

Engine Oil

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

with non-synthetic oil (API SL 10W-30W). 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 operator’s

manual.

Coolant System

This engine is shipped from the factory filled with a

50-50 mix of automotive (Ethylene glycol) anti-freeze and

water. This will provide optimum year round protection

against freezing, boiling and corrosion. The coolant system

incorporates an optional water heater that operates with

a fixed thermostat set at 100°F - 120°F (39°C - 49°C)

AND utility power is present at the transfer switch. Before

starting the engine, check coolant level as described in the

Maintenance section

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.

GND

A

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Simplicity 076454-00 Guide d'installation

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