Generac 11 kW 006720R1 Manuel utilisateur

Installation Guidelines

60 Hz Air-cooled Generators

8 kW to 22 kW

SAVE THIS MANUAL FOR FUTURE REFERENCE

000918

Para español , visita: http://www.generac.com/service-support/product-support-lookup

Pour le français, visiter : http://www.generac.com/service-support/product-support-lookup

(000209a)

WARNING

This product is not intended to be used in

a critical life support application. Failure to

adhere to this warning could result in

death or serious injury.

Register your Generac product at:

WWW.GENERAC.COM

1-888-GENERAC

(888-436-3722)

ii Installation Guidelines For 60 Hz Air-cooled Generators

Use this page to record important information about your generator set.

Record the information found on your unit data label on this

page. For the location of the unit data label, see your

Owner’s Manual. The unit has a label plate affixed to the

inside partition, to the left of the control panel console.

When contacting an Independent Authorized Service Dealer

about parts and service, always supply the complete model

number and serial number of the unit.

Operation and Maintenance: Proper maintenance and care

of the generator ensures a minimum number of problems

and keeps operating expenses at a minimum. It is the

operator’s responsibility to perform all safety checks, to

make sure that all maintenance for safe operation is

performed promptly, and to have the equipment checked

periodically by an Independent Authorized Service Dealer.

Normal maintenance, service and replacement of parts are

the responsibility of the owner/operator and, as such, are not

considered defects in materials or workmanship within the

terms of the warranty. Individual operating habits and usage

may contribute to the need for additional maintenance or

service.

When the generator requires servicing or repairs, contact an

Independent Authorized Service Dealer for assistance.

Authorized service technicians are factory-trained and are

capable of handling all service needs.To locate the nearest

Independent Authorized Service Dealer, please visit the

dealer locator at:

www.generac.com/Service/DealerLocator/.

Model:

Serial:

Prod Date Week:

Volts:

LPV Amps:

NG Amps:

Hz:

Phase:

Controller P/N:

(000005)

WARNING

California Proposition 65. This product contains or

emits chemicals known to the state of California to

cause cancer, birth defects, and other reproductive

harm.

(000004)

WARNING

California Proposition 65. Engine exhaust and some

of its constituents are known to the state of California

to cause cancer, birth defects, and other reproductive

harm.

Table of Contents

Installation Guidelines For 60 Hz Air-cooled Generators 1

Section 1: Safety Rules & General Information

Introduction ..........................................................1

– Read This Manual Thoroughly .................................1

– How to Obtain Service ..............................................1

Safety Rules .........................................................1

– General Hazards ......................................................2

– Exhaust Hazards ......................................................2

– Electrical Hazards ....................................................3

– Fire Hazards .............................................................3

– Explosion Hazards ...................................................3

General Rules .......................................................4

– Before You Begin .....................................................4

– NEC Requirements ..................................................4

– Standards Index .......................................................4

Section 2: Unpacking and Inspection

General .................................................................7

Required Tools .....................................................7

Unpacking ............................................................7

Parts Shipped Loose ...........................................9

Section 3: Site Selection and Preparation

– Installation Guidelines for Stationary Air-Cooled

Generators .............................................................12

– Annex A — Explanatory Material ...........................12

Site Preparation .................................................13

– Material Sufficient for Level Installation ..................13

– Transportation Recommendations .........................13

Section 4: Generator Placement

Generator Placement .........................................15

Fascia Installation (If Applicable) .....................15

Section 5: Fuel Conversion/Gas Connections

Fuel Requirements and Recommendations ....17

Fuel Conversion .................................................17

Fuel Line Sizing .................................................18

– LP Vapor Pipe Sizing .............................................19

Installing and Connecting Gas Lines ...............19

– Shutoff Valve ..........................................................20

– Flexible Fuel Line ...................................................20

– Sediment Trap ........................................................20

Checking Gas Line Connections ......................20

Section 6: Electrical Connections

Generator Connections .................................... 23

Control Wiring ................................................... 23

Main AC Wiring .................................................. 24

Battery Requirements ....................................... 24

Battery Installation ............................................ 24

Section 7: Control Panel/Start-up/Testing

Control Panel Interface ..................................... 25

– Using the AUTO/MANUAL/OFF Buttons ...............25

Generator Set-up ............................................... 25

– Activation ................................................................25

– Cold Smart Start .....................................................25

– Setting The Exercise Timer ....................................26

Before Initial Start-up ........................................ 26

– Installation Wizard ..................................................26

– Interconnect System Self Test Feature ..................26

– Before starting, complete the following: .................26

Check Manual Transfer Switch Operation ...... 27

Electrical Checks ............................................... 28

Generator Tests Under Load ............................ 28

Checking Automatic Operation ........................ 29

Installation Summary ........................................ 29

Shutting Generator Down While Under Load . 29

Section 8: Troubleshooting

System Diagnosis ............................................. 31

Section 9: Quick Reference Guide

System Diagnosis ............................................. 33

Section 10: Accessories

Section 11: Diagrams

– Interconnection Diagram (0K2516-C 1 of 2) ...........37

– Interconnection Diagram (0K2516-C 2 of 2) ...........38

– Drawing (0K7803-D 1 of 2) ....................................39

– Installation Drawing (0K7803-D 2 of 2) ..................40

Table of Contents

2 Installation Guidelines For 60 Hz Air-cooled Generators

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Section 1: Safety Rules & General Information

Installation Guidelines For 60 Hz Air-cooled Generators 1

Section 1: Safety Rules & General Information

Introduction

Thank you for purchasing this compact, high

performance, air-cooled, engine-driven generator. It is

designed to automatically supply electrical power to

operate critical loads during a utility power failure.

This unit is factory installed in an all-weather, metal

enclosure that is intended exclusively for outdoor

installation. This generator will operate using either vapor

withdrawn liquid propane (LP) or natural gas (NG).

NOTE: When sized properly, this generator is suitable for

supplying typical residential loads such as induction

motors (sump pumps, refrigerators, air conditioners,

furnaces, etc.), electronic components (computer,

monitor, TV, etc.), lighting loads and microwaves.

Read This Manual Thoroughly

If any portion of this manual is not understood, contact

the nearest Independent Authorized Service Dealer for

starting, operating and servicing procedures.

This manual must be used in conjunction with the

appropriate Owner’s Manual.

SAVE THESE INSTRUCTIONS: The manufacturer

suggests that this manual and the rules for safe operation

be copied and posted near the unit installation site.

Safety should be stressed to all operators and potential

operators of this equipment.

Throughout this publication and on tags and decals

affixed to the generator, DANGER, WARNING, and

CAUTION blocks are used to alert personnel to special

instructions about a particular operation that may be

hazardous if performed incorrectly or carelessly. Observe

them carefully. Their definitions are as follows:

NOTE: Notes provide additional information important to

a procedure or component.

These safety warnings cannot eliminate the hazards they

indicate. Observing safety precautions and strict

compliance with the special instructions while performing

the action or service are essential to preventing accidents.

The operator is responsible for proper and safe use of

the equipment. The manufacturer strongly recommends

that if the operator is also the owner, to read the Owner’s

Manual and thoroughly understand all instructions before

using this equipment. The manufacturer also strongly

recommends instructing other users to properly start and

operate the unit. This prepares them if they need to

operate the equipment in an emergency.

How to Obtain Service

When the generator requires servicing or repairs, contact

an Independent Authorized Service Dealer for assistance.

Service technicians are factory-trained and are capable of

handling all service needs. For assistance locating a

dealer, go to

www.generac.com/Service/DealerLocator/.

When contacting an Independent Authorized Service

Dealer about parts and service, always supply the

complete model number and serial number of the unit as

given on its data decal, which is located on the generator.

Refer to Owner’s Manual for decal location. Record the

model number and serial numbers in the spaces

provided on the inside front cover of this manual.

Safety Rules

Study these SAFETY RULES carefully before installing,

operating or servicing this equipment. Become familiar

with this Owner’s Manual and with the unit. The

generator can operate safely, efficiently and reliably only

if it is properly installed, operated and maintained. Many

accidents are caused by failing to follow simple and

fundamental rules or precautions.

The manufacturer cannot anticipate every possible

circumstance that might involve a hazard. The warnings in

this manual and on tags and decals affixed to the unit are,

therefore, not all-inclusive. If using a procedure, work

method, or operating technique the manufacturer does not

specifically recommend, verify that it is safe for others.

Also, make sure the procedure, work method or operating

technique utilized does not render the generator unsafe.

(000100a)

WARNING

Consult Manual. Read and understand manual

completely before using product. Failure to

completely understand manual and product

could result in death or serious injury.

(000001)

DANGER

Indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

(000002)

WARNING

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

(000003)

CAUTION

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Section 1: Safety Rules & General Information

2 Installation Guidelines For 60 Hz Air-cooled Generators

General Hazards

•

When working on this equipment, remain alert at all

times. Never work on the equipment when

physically or mentally fatigued.

• Inspect the generator regularly, and contact the

nearest Independent Authorized Service Dealer for

parts needing repair or replacement.

• Never use the generator or any of its parts as a

step. Stepping on the unit can stress and break

parts, and may result in dangerous operating

conditions from leaking exhaust gases, fuel

leakage, oil leakage, etc.

Exhaust Hazards

•

Adequate, unobstructed flow of cooling and

ventilating air is critical to correct generator

operation. Do not alter the installation or permit

even partial blockage of ventilation provisions, as

this can seriously affect safe operation of the

generator. The generator must be installed and

operated outdoors only.

(000209a)

WARNING

This product is not intended to be used in

a critical life support application. Failure to

adhere to this warning could result in

death or serious injury.

(000190)

DANGER

Loss of life. Property damage. Installation must always

comply with applicable codes, standards, laws and

regulations. Failure to do so will result in death

or serious injury.

Automatic start-up. Disconnect utility power and

render unit inoperable before working on unit.

Failure to do so will result in death or serious injury.

(000191)

DANGER

(000187)

WARNING

(000130)

WARNING

Accidental Start-up. Disconnect the negative battery

cable, then the positive battery cable when working

on unit. Failure to do so could result in death

or serious injury.

(000182)

WARNING

(000155)

WARNING

Only a trained and licensed electrician should perform

wiring and connections to unit. Failure to follow proper

installation requirements could result in death, serious

injury, and damage to equipment or property.

(000115)

WARNING

Moving Parts. Do not wear jewelry when

starting or operating this product. Wearing

jewelry while starting or operating this product

could result in death or serious injury.

(000111)

WARNING

Moving Parts. Keep clothing, hair, and

appendages away from moving parts. Failure

to do so could result in death or serious injury.

(000108)

WARNING

Hot Surfaces. When operating machine, do not

touch hot surfaces. Keep machine away from

combustibles during use. Hot surfaces

could result in severe burns or fire.

(000146)

WARNING

Equipment and property damage. Do not alter

construction of, installation, or block ventilation for

generator. Failure to do so could result in unsafe

operation or damage to the generator.

Asphyxiation. Running engines produce

carbon monoxide, a colorless, odorless,

poisonous gas. Carbon monoxide, if not

avoided, will result in death or serious injury.

(000103)

DANGER

(000178a)

Asphyxiation. Always use a battery operated carbon

monoxide alarm indoors and installed according to

the manufacturer’s instructions. Failure to do so

could result in death or serious injury.

WARNING

Section 1: Safety Rules & General Information

Installation Guidelines For 60 Hz Air-cooled Generators 3

Electrical Hazards Fire Hazards

•

For fire safety, the generator must be installed and

maintained properly. Installation must always comply

with applicable codes, standards, laws and

regulations. Adhere strictly to local, state and

national electrical and building codes. Comply with

regulations the Occupational Safety and Health

Administration (OSHA) has established. Also, verify

that the generator is installed in accordance with the

manufacturer’s instructions and recommendations.

Following proper installation, do nothing that might

alter a safe installation and render the unit in

noncompliance with the aforementioned codes,

standards, laws and regulations.

• Keep a fire extinguisher near the generator at all

times. Extinguishers rated “ABC” by the National

Fire Protection Association are appropriate for use

on the standby electric system. Keep the

extinguisher properly charged and be familiar with

its use. Consult the local fire department with any

questions pertaining to fire extinguishers.

Explosion Hazards

(000144)

DANGER

Electrocution. Contact with bare wires,

terminals, and connections while generator

is running will result in death or serious injury.

(000150)

DANGER

Electrocution. Never connect this unit to the electrical

system of any building unless a licensed electrician

has installed an approved transfer switch. Failure to

do so will result in death or serious injury.

(000131a)

DANGER

Electrical backfeed. Use only approved switchgear to

isolate generator when electrical utility is the primary

power source. Failure to do so will result in death,

serious injury, and equipment damage.

(000152)

DANGER

Electrocution. Verify electrical system is

properly grounded before applying power.

Failure to do so will result in death or serious

injury.

(000188)

DANGER

Electrocution. Do not wear jewelry while

working on this equipment. Doing so will

result in death or serious injury.

(000104)

DANGER

Electrocution. Water contact with a power

source, if not avoided, will result in death

or serious injury.

(000144)

DANGER

Electrocution. Contact with bare wires,

terminals, and connections while generator

is running will result in death or serious injury.

(000145)

DANGER

Electrocution. In the event of electrical accident,

immediately shut power OFF. Use non-conductive

implements to free victim from live conductor. Apply

first aid and get medical help. Failure to do so will

result in death or serious injury.

(000147)

WARNING

Risk of Fire. Unit must be positioned in a

manner that prevents combustible material

accumulation underneath. Failure to do so

could result in death or serious injury.

(000192)

DANGER

(000151)

DANGER

Connection of fuel source must be done by a qualified

professional technician or contractor. Incorrect installation

of this unit will result in death, serious injury, and damage

to equipment and property damage.

(000174)

DANGER

Risk of fire. Allow fuel spills to completely dry

before starting engine. Failure to do so will

result in death or serious injury.

(000110)

WARNING

Risk of Fire. Hot surfaces could ignite

combustibles, resulting in fire. Fire could

result in death or serious injury.

Section 1: Safety Rules & General Information

4 Installation Guidelines For 60 Hz Air-cooled Generators

General Rules

• Follow all safety precautions in the Owner’s

Manual, Installation Guidelines manual and other

documents included with your equipment.

• Refer to NFPA 70E for safety equipment required

when working with a live system.

• Never energize a new system without opening all

disconnects and breakers.

• Always consult your local code for additional

requirements for the area in which the unit is being

installed.

Improper installation can result in personal injury and

damage to the generator. It may also result in the

warranty being suspended or voided. All the instructions

listed below must be followed including location

clearances and pipe sizes.

Before You Begin

•

Contact the local inspector or City Hall to be aware

of all federal, state and local codes that could

impact the installation. Secure all required permits

before starting the job.

• Carefully read and follow all of the procedures and

safety precautions detailed in the installation guide.

If any portion of the installation manual, technical

manual or other factory-supplied documents is not

completely understood, contact an Independent

Authorized Service Dealer for assistance.

• Fully comply with all relevant NEC, NFPA and

OSHA standards as well as all federal, state and

local building and electric codes. As with any

generator, this unit must be installed in accordance

with current NFPA 37 and NFPA 70 standards as

well as any other federal, state, and local codes for

minimum distances from other structures.

• Verify the capacity of the natural gas meter or the

LP tank in regards to providing sufficient fuel for

both the generator and other household and

operating appliances.

NEC Requirements

Local code enforcement may require that Arc Fault

Circuit Interrupters (AFCIs) be incorporated into the

transfer switch distribution panel. The Transfer Switch

provided with this generator has a distribution panel that

will accept AFCIs (pre-wired transfer switches only).

Siemens Part No. Q115AF - 15A or Q120AF - 20A can

be obtained from a local electrical wholesaler and will

simply replace any of the single pole circuit breakers

supplied in the pre-wired transfer switch distribution

panel.

Standards Index

Strictly comply with all applicable national, state and local

laws, as well as codes or regulations pertaining to the

installation of this engine-generator power system. Use

the most current version of applicable codes or standards

relevant to the local jurisdiction, generator used, and

installation site.

NOTE: Not all codes apply to all products and this list is

not all-inclusive. In the absence of pertinent local laws

and standards, the following publications may be used as

a guide (these apply to localities which recognize NFPA

and IBC).

1. National Fire Protection Association (NFPA) 70:

The NATIONAL ELECTRIC CODE (NEC) *

2.

NFPA 10: Standard for Portable Fire Extinguishers *

3. NFPA 30: Flammable and Combustible Liquids

Code *

4. NFPA 37: Standard for Stationary Combustion

Engines and Gas Turbines *

5. NFPA 54: National Fuel Gas Code *

6. NFPA 58: Standard for Storage and Handling Of

Liquefied Petroleum Gases *

7. NFPA 68: Standard On Explosion Protection By

Deflagration Venting *

8. NFPA 70E: Standard For Electrical Safety In The

Workplace *

(000190)

DANGER

Loss of life. Property damage. Installation must always

comply with applicable codes, standards, laws and

regulations. Failure to do so will result in death

or serious injury.

(000131a)

DANGER

Electrical backfeed. Use only approved switchgear to

isolate generator when electrical utility is the primary

power source. Failure to do so will result in death,

serious injury, and equipment damage.

(000182)

WARNING

(000209a)

WARNING

This product is not intended to be used in

a critical life support application. Failure to

adhere to this warning could result in

death or serious injury.

Section 1: Safety Rules & General Information

Installation Guidelines For 60 Hz Air-cooled Generators 5

9. NFPA 110: Standard for Emergency and Standby

Power Systems *

10. NFPA 211: Standard for Chimneys, Fireplaces,

Vents, and Solid Fuel Burning Appliances *

11. NFPA 220: Standard on Types of Building

Construction *

12. NFPA 5000: Building Code *

13. International Building Code **

14. Agricultural Wiring Handbook ***

15. Article X, NATIONAL BUILDING CODE

16. ASAE EP-364.2 Installation and Maintenance of

Farm Standby Electric Power ****

This list is not all-inclusive. Check with the Authority

Having Local Jurisdiction (AHJ) for any local codes or

standards which may be applicable to your jurisdiction.

The above listed standards are available from the

following internet sources:

* www.nfpa.org

** www.iccsafe.org

*** www.rerc.org Rural Electricity Resource Council P.O.

Box 309 Wilmington, OH 45177-0309

**** www.asabe.org American Society of Agricultural &

Biological Engineers 2950 Niles Road, St. Joseph, MI

9085

Section 1: Safety Rules & General Information

6 Installation Guidelines For 60 Hz Air-cooled Generators

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Section 2: Unpacking and Inspection

Installation Guidelines For 60 Hz Air-cooled Generators 7

Section 2: Unpacking and Inspection

General

NOTE: After unpacking, carefully inspect the contents for

damage. It is advised to unpack and inspect the unit

immediately upon delivery to detect any damage that

may have occurred in transit. Any claims for shipping

damage need to be filed as soon as possible with the

freight carrier. This is especially important if the generator

will not be installed for a period of time.

• This standby generator set is ready for installation

with a factory supplied and pre-mounted base pad

and has a weather protective enclosure that is

intended for outdoor installation only.

• If any loss or damage is noted at time of delivery,

have the person(s) making the delivery note all

damage on the freight bill or affix their signature

under the consignor’s memo of loss or damage.

• If a loss or damage is noted after delivery, separate

the damaged materials and contact the carrier for

claim procedures.

• “Concealed damage” is understood to mean

damage to the contents of a package that is not

evident at the time of delivery, but is discovered

later.

Required Tools

• General SAE and Metric hand tools

– Wrenches

– Sockets

– Screwdrivers

• Standard electrician’s hand tools

– Drill and bits for mounting and routing conduits

• 4mm Allen wrench (for access to customer

connections)

• 3/16 Allen wrench (test port on fuel regulator)

• Manometer (for fuel pressure checks)

• Meter capable of measuring AC/DC Voltage and

Frequency

Unpacking

1. Remove cardboard carton.

2. Remove the wood frame.

Figure 2-1. Crated Generator

3. Remove bolts and pallet brackets (A). Exercise

caution when removing the generator. Dragging it

off the pallet will damage the base. The generator

must be lifted from the wooden pallet to remove.

Figure 2-2. Generator on Pallet

4. The lid will be locked. A set of keys is attached to

the circuit breaker box door with a cable tie. Cut the

cable tie to remove the keys. Use the keys to open

the lid of the generator.

000427

000426

A

Section 2: Unpacking and Inspection

8 Installation Guidelines For 60 Hz Air-cooled Generators

Figure 2-3. Circuit Breaker Box and Keys (As

Shipped)

5. There are two locks securing the lid, one on each

side. To properly open the lid, press down, on the

lid, above the side lock and unlock the latch.

6. Repeat for the other side. If pressure is not applied

from the top, the lid may appear stuck.

NOTE: Always verify that the side locks are unlocked

before attempting to lift the lid.

7. Once the lid is open, remove the front access

panel by lifting it up and out. Also remove the black

panel, indicated by the arrow, over top of the cus-

tomer connection area. See Figure 2-4

8. Perform a visual inspection for any hidden freight

damage. If damage is present, contact the freight

carrier.

Figure 2-4. Inspect for Damage

9. Figure 2-5 illustrates the following:

Figure 2-5. Customer Connection Area and Loose Parts Location

000932

A Customer connection area (underneath and behind

the control panel)

B Fuel regulator

C Battery compartment

D Positive (+) and Negative (-) Battery Cables

E Location of “Loose Shipped Parts”

000600

000604

A

B

C

E

D

Section 2: Unpacking and Inspection

Installation Guidelines For 60 Hz Air-cooled Generators 9

Figure 2-6. Rear of Generator

Parts Shipped Loose

1. Keys

2. Battery Terminal Cap

3. Main Line Circuit Breaker (MLCB) Terminal Caps

4. Wire Shielding to separate AC from DC control

wires

5. Main Line Circuit Breaker (MLCB) Locking

Mechanism

6. Flexible Fuel Line

7. Rubber Mounts (only for units that include fascia)

8. Wire Nuts (for pre-wired switches only)

9. Installation and Owner’s Manuals (not shown)

Figure 2-7. Parts Shipped Loose

000605

A

C

A. Main AC/Control Wiring hole for 3/4 inch conduit

B.Main AC/Control Wiring hole for 1-1/4 inch conduit

C. Fuel Connection Hole

B

000926

1

2

3

4

5

6

7

8

Section 2: Unpacking and Inspection

10 Installation Guidelines For 60 Hz Air-cooled Generators

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Section 3: Site Selection and Preparation

Installation Guidelines For 60 Hz Air-cooled Generators 11

Section 3: Site Selection and Preparation

Site Selection

Figure 3-1. Installation Guidelines

Install the generator set, in its protective enclosure,

outdoors, where adequate cooling and ventilating air is

always available (Figure 3-1). Consider these factors:

• The installation of the generator must comply

strictly with NFPA 37, NFPA 54, NFPA 58 and

NFPA 70 standards.

• 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, consider using a windbreak to protect the

unit.

• Install the generator on high ground where water

levels will not rise and endanger it. It should not

operate in or be subjected to standing water.

• Allow sufficient room on all sides of the generator

for maintenance and servicing. This unit must be

installed in accordance with any codes that are in

place in your country or local jurisdiction for

minimum distances from other structures.

• Clearance from the ends and front of the generator

must be 3 ft (0.91 m). This includes shrubs, bushes

and trees. Clearance from the back of the

generator must be a minimum of 18 in (457 mm).

000607

No operable windows or openings in the wall permitted

within 1.52 m (5 ft) from any point of the generator.

Top of Generator

3 ft (0.91 m)

5 ft

(1.52 m)

Existing Wall

18 in (457 mm)

Minimum Distance

5 ft (1.52 m)

Minimum Distance

5 ft (1.52 m)

Minimum Distance

These guidelines are based upon fire testing of

the generator enclosure and the manufacturer’s

requirement for air flow for proper operation.

Local codes may be different and more restrictive

than what is described here.

Allow sufficient room on all sides of the

generator for maintenance and servicing.

Clearance from the ends and front of the

generator must be 3 ft m (0.91). This includes

shrubs, bushes and trees. Clearance from the

back of the generator must be a minimum of 18

in (457 mm). Clearance at the top should be a

minimum of 5 ft (1.52 m) from any structure,

overhang or projections from the wall.

DO NOT install under wooden decks or

structures unless there is at least 5 ft (1.52 m)

of clearance above the generator.

Clearance from operable windows,

doors or any openings in the wall.

3 ft (0.91 m)

NOTE: Removable fence panels for servicing

cannot be placed less than 457 mm (18 in) in

front of the generator.

5 ft

(1.52 m)

Section 3: Site Selection and Preparation

12 Installation Guidelines For 60 Hz Air-cooled Generators

Clearance at the top should be a minimum of 5 ft

(1.52 m) from any structure, overhang or

projections from the wall.

• DO NOT install under wooden decks or structures

unless there is at least 5 ft (1.52 m) of clearance

above the generator.

• Install the unit where rain gutter down spouts, roof

run-off, landscape irrigation, water sprinklers or

sump pump discharge does not flood the unit or

spray the enclosure, including any air inlet or outlet

openings.

• Install the unit where services will not be affected

or obstructed, including concealed, underground or

covered services such as electrical, fuel, phone, air

conditioning or irrigation. This could affect

Warranty Coverage.

• Where strong prevailing winds blow from one

direction, face the generator air inlet openings to

the prevailing winds.

• Install the generator as close as possible to the fuel

supply to reduce the length of piping. REMEMBER

THAT LAWS OR CODES MAY REGULATE THE

DISTANCE AND LOCATION. In the absence of

local codes regarding placement or clearance, we

recommend following these guidelines.

• Install the generator as close as possible to the

transfer switch. REMEMBER THAT LAWS OR

CODES MAY REGULATE THE DISTANCE AND

LOCATION.

• The generator must be installed on a level surface.

The generator must be level within a 0.5 in (13

mm) all around.

• The generator is typically placed on pea gravel,

crushed stone or a concrete pad. Check local

codes to see what type is required. If a concrete

pad is required, all applicable codes should be

followed.

Installation Guidelines for Stationary Air-Cooled

Generators

The National Fire Protection Association has a standard

for the installation and use of stationary combustion

engines. That standard is NFPA 37, its requirements limit

the spacing of an enclosed generator set from a structure

or wall (Figure 3-1).

NFPA 37, Section 4.1.4, Engines Located Outdoors:

Engines, and their weatherproof housings if provided,

that are installed outdoors shall be located at least 5 ft

(1.52 m) from openings in walls and at least 5 ft (1.52 m)

from structures having combustible walls. A minimum

separation shall not be required where the following

conditions exist:

1. The adjacent wall of the structure has a fire resis-

tance rating of at least 1 hour.

2. The weatherproof enclosure is constructed of non-

combustible materials and it has been demon-

strated that a fire within the enclosure will not ignite

combustible materials outside the enclosure.

Annex A — Explanatory Material

A4.1.4 (2) Means of demonstrating compliance are by

means of full scale fire test or by calculation procedures.

Because of the limited spaces that are frequently

available for installation, it has become apparent that

exception (2) would be beneficial for many residential

and commercial installations. With that in mind, the

manufacturer contracted with an independent testing

laboratory to run full scale fire tests to assure that the

enclosure will not ignite combustible materials outside

the enclosure.

NOTE: Southwest Research Institute testing approves

18 in (457 mm) installation minimum from structure.

Southwest Research is a nationally recognized third

party testing and listing agency.

The criteria was to determine the worst case fire scenario

within the generator and to determine the ignitability of

items outside the engine enclosure at various distances.

The enclosure is constructed of non-combustible

materials, and the results and conclusions from the

independent testing lab indicated that any fire within the

generator enclosure would not pose any ignition risk to

nearby combustibles or structures, with or without fire

service personnel response.

Figure 3-2. Southwest Research Institute Decal

Southwest Research Institute Decal (located inside the

generator, next to the generator’s data decal)

http://www.swri.org/4org/d01/fire/listlab/listprod/director.htm

Based on this testing and the requirements of NFPA 37,

Sec 4.1.4, the guidelines for installation of the generators

listed above are changed to 18 in (457 mm) from the

000609

Section 3: Site Selection and Preparation

Installation Guidelines For 60 Hz Air-cooled Generators 13

back side of the generator to a stationary wall or building.

For adequate maintenance and airflow clearance, the

area above the generator should be at least 5 ft (1.52 m)

with a minimum of 3 ft (.91 m) at the front and ends of the

enclosure. This would include trees, shrubs and bushes.

Vegetation not in compliance with these clearance

parameters could obstruct air flow. In addition, exhaust

fumes from the generator could inhibit plant growth. See

Figure 3-1 and the installation drawing within the owner’s

manual for details.

If the generator is not set to the OFF mode, it can crank

and start as soon as the battery cables are connected. If

the utility power supply is not turned off, sparking can

occur at the battery posts and cause an explosion.

Site Preparation

• Locate the mounting area as close as possible to

the transfer switch and fuel supply.

• Leave adequate room around the area for service

access (check local code), and place high enough

to keep rising water from reaching the generator.

• Choose an open space that will provide adequate

and unobstructed airflow.

• Place the unit so air vents won’t become clogged

with leaves, grass, snow or debris. Make sure

exhaust fumes will not enter the building through

eaves, windows, ventilation fans or other air

intakes (see Site Selection ).

• Select the type of base, such as but not limited to

gravel or concrete, as desired or as required by

local laws or codes. Verify your local requirements

before selecting.

Material Sufficient for Level Installation

•

Dig a rectangular area approximately 5 in (127

mm) deep [A] and about 6 in (152 mm) longer and

wider [B] than the footprint of the generator. Fill

with 4 in (102 mm) of pea gravel [C], crushed stone

or any other non-combustible material sufficient for

level installation. Compact and level the material. A

concrete pad can be poured if desired or required.

The pad should be 4-5 in (102-127 mm) thick and

extend 6 in (152 mm) beyond the outside of the

generator in all directions.

Figure 3-3. Compacted Gravel Pad

NOTE: If a concrete pad is required, follow all applicable

Federal, State or local codes.

Figure 3-4. Poured or Pre-formed Concrete Pad

Transportation Recommendations

Use a two wheeled hand cart or metal rails to carry the

generator (including the wooden pallet) to the installation

site. Place cardboard between the hand cart and the

generator to prevent any damage or scratches to the

generator.

Automatic start-up. Disconnect utility power and

render unit inoperable before working on unit.

Failure to do so will result in death or serious injury.

(000191)

DANGER

Asphyxiation. Running engines produce

carbon monoxide, a colorless, odorless,

poisonous gas. Carbon monoxide, if not

avoided, will result in death or serious injury.

(000103)

DANGER

000856

A

B

C

000611a

Section 3: Site Selection and Preparation

14 Installation Guidelines For 60 Hz Air-cooled Generators

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Section 4: Generator Placement

Installation Guidelines For 60 Hz Air-cooled Generators 15

Section 4: Generator Placement

Generator Placement

All air-cooled generators come with a composite pad.

The composite pad elevates the generator and helps

prevent water from pooling around the bottom of the

generator (Figure 4-1). The generator and composite

pad can be placed on 4 in (102 mm) of pea gravel that is

compacted or on a concrete pad. Check local codes to

see what type of site base is required. If a concrete pad is

required, all federal, state and local codes should be

followed. Place the generator on its mounting pad and

position correctly as per the dimensional information

given in Site Preparation .

NOTE: Generator must be level within 0.5 in (13 mm).

NOTE: If the composite pad is removed for concrete

mounting, the fascia kit will not fit.

Figure 4-1. Composite Pad

When mounting the generator to concrete, there are four

mounting holes available for securing the generator, if

codes require (two holes inside the front of the generator

compartment and two holes in the back). See Figure 4-2.

NOTE: The top of the generator carton has a template

that can be used to mark the concrete pad to pre-drill the

mounting holes.

Figure 4-2. Mounting Hole Location

Fascia Installation (If Applicable)

• Locate the four (4) threaded black rubber bumpers

located in the Owner’s manual bag.

• Remove the four (4) bumpers from the bag and

screw them into threaded holes located inside the

end pieces of the fascia (two each) opposite one

another (A).

• Once the bumpers are installed, snap one of the

end pieces into one of the front / rear pieces of

fascia. Repeat this action with the other two

remaining pieces of fascia.

NOTE: Do not assemble all four pieces together at this

point (B).

• Place both assemblies at the base of the generator

and fit the rubber bumpers into the lifting holes in

the generator base (C).

• Once aligned, snap together the two remaining

connection points.

Figure 4-3. Fascia Installation

000612

000614

A

B

C

Section 4: Generator Placement

16 Installation Guidelines For 60 Hz Air-cooled Generators

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Generac 11 kW 006720R1 Manuel utilisateur

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