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Generac Generatorn QT04854KNAC

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This manual should remain with the unit.

5.4L

48kW Models

EPA Certified

with Catalyst

Owner's Manual

Stationary Emergency Generator

Cover207 Rev. A 12/11 Part No. 0J7770



NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT

APPLICATIONS.



ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS

SHOULD ATTEMPT INSTALLATION! DEADLY EXHAUST

FUMES! OUTDOOR INSTALLATION ONLY!

SECTION PAGE

INTRODUCTION ........................................................... 1-1

Read this Manual Thoroughly .......................................................1-1

Operation and Maintenance ..........................................................1-1

How to Obtain Service .................................................................1-1

SAFETY RULES ............................................................ 1-2

GENERAL INFORMATION ............................................ 2-1

Identification Record ........................................................................2-1

Data Label ...................................................................................2-1

EQUIPMENT DESCRIPTION ........................................ 3-1

Equipment Description .....................................................................3-1

Engine Oil Recommendations ...........................................................3-1

Coolant Recommendations ..............................................................3-1

ENGINE PROTECTIVE DEVICES ................................. 4-1

Engine Protective Devices ................................................................4-1

High Coolant Temperature Sender ................................................4-1

Low Coolant Level Sensor ............................................................4-1

Low Oil Pressure Switch ..............................................................4-1

Overcrank Shutdown ....................................................................4-1

Overspeed Shutdown ...................................................................4-1

RPM Sensor Loss Shutdown........................................................4-1

DC Fuses .....................................................................................4-1

FUEL SYSTEM .............................................................. 5-1

Fuel Requirements .......................................................................5-1

Natural Gas Fuel System ..............................................................5-1

Propane Vapor Withdrawal Fuel System ........................................5-1

LP Liquid Fuel System ..................................................................5-1

SPECIFICATIONS ......................................................... 6-1

Stationary Emergency Generator ..................................................6-1

Engine .........................................................................................6-1

Cooling System............................................................................6-1

Fuel System .................................................................................6-1

Electrical System .........................................................................6-1

Weather and Maintenance Kits .....................................................6-2

Reconfiguring the Fuel System .........................................................6-2

Fuel System .................................................................................6-2

Control Panel ...............................................................................6-2

GENERAL INFORMATION ............................................ 7-1

Alternator AC Lead Connections .......................................................7-1

Four-lead, Single-phase Stator ......................................................7-1

Alternator Power Winding Connections .............................................7-1

3-phase Alternators ("Y" Configuration) ........................................7-1

3-phase Alternators ("Delta" Configuration)...................................7-2

CONTROL PANEL ......................................................... 8-1

Control Panel Interface .....................................................................8-1

Using the Auto/Off/Manual Switch ................................................8-1

Activate the Generator ......................................................................8-1

Display Interface Menus ...................................................................8-1

Activation Chart ...........................................................................8-2

Setting the Exercise Timer ................................................................8-3

Low Speed Exercise .....................................................................8-3

User Adjustable Settings ..................................................................8-3

Fuel Conversion ...............................................................................8-3

Operation ......................................................................................... 8-3

Automatic Transfer Operation .......................................................8-3

Sequence of Automatic Operation ................................................8-4

Crank Cycles and Overcrank Shutdown ........................................8-4

Auto Start ........................................................................................8-4

Manual Start ....................................................................................8-4

Alarm and Warning Messages ..........................................................8-4

Low Oil Pressure Shutdown Alarm ...............................................8-4

High Coolant Temperature Shutdown Alarm ..................................8-4

Overcrank Shutdown Alarm ..........................................................8-4

Overspeed Shutdown Alarm .........................................................8-4

RPM Sensor Failure Shutdown Alarm ...........................................8-4

Under-frequency Shutdown Alarm ................................................8-5

Low Battery Alarm .......................................................................8-5

Low Battery Warning....................................................................8-5

Low Coolant Level Alarm .............................................................8-5

Missing Cam Pulse Alarm ............................................................8-5

Missing Crank Pulse Alarm ..........................................................8-5

Low Fuel Pressure Warning ..........................................................8-5

Governor Sensor Fault Alarm ........................................................8-5

Wiring Error Alarm .......................................................................8-5

Undervoltage Alarm .....................................................................8-5

Overvoltage Alarm .......................................................................8-6

Internal Failure Shutdown Alarm ...................................................8-6

Canbus Alarm ..............................................................................8-6

Ignition Alarm ..............................................................................8-6

Maintenance Warning ...................................................................8-6

Alarm Cancel ...............................................................................8-6

Common Alarm Relay ......................................................................8-6

Maintenance Alerts ..........................................................................8-6

Menu System ...................................................................................8-7

OPERATION .................................................................. 9-1

Stationary Emergency Generator Control and Operation ....................9-1

Operating Unit with Manual Transfer Switch ......................................9-1

Engine Start-up and Transfer ........................................................9-1

Retransfer and Shutdown .............................................................9-1

Operating Unit with Automatic Transfer Switch .................................9-1

MAINTENANCE........................................................... 10-1

General Maintenance ......................................................................10-1

Check Engine Oil ........................................................................10-1

Changing Engine Oil ...................................................................10-1

Cooling Intake/Outlet ..................................................................10-1

Inspect Cooling System .............................................................10-1

Engine Coolant ...........................................................................10-2

Coolant Change .........................................................................10-2

Overload Protection for Engine DC Electrical System ..................10-2

Exercise System ........................................................................10-2

Perform Visual Inspection ..........................................................10-2

Inspect Exhaust System .............................................................10-2

Check Fan Belt ...........................................................................10-2

Inspect Engine Governor ............................................................10-2

Changing the Engine Air Filter .....................................................10-2

Spark Plugs ...............................................................................10-3

Battery Maintenance ..................................................................10-3

Battery Replacement ..................................................................10-3

Battery Fluid ...............................................................................10-3

Cleaning the Stationary Emergency Generator ............................10-3

SERVICE SCHEDULE ................................................. 11-1

TROUBLESHOOTING ................................................. 12-1

Troubleshooting Guide ....................................................................12-1

EMISSIONS WARRANTY ............................................ 13-1

NOTES

EXPLODED VIEWS & PARTS LISTS

WIRING DIAGRAMS & SCHEMATICS

Content048 Rev. A 05/10

Table of Contents

INTRODUCTION

Thank you for purchasing this model of the stationary emergency

generator product line.

Every effort was expended to make sure that the information and

instructions in this manual were both accurate and current at the

time the manual was written. However, the manufacturer reserves

the right to change, alter or otherwise improve this product(s) at

any time without prior notice.

READ THIS MANUAL THOROUGHLY

If any portion of this manual is not understood, contact the nearest

Service Dealer for starting, operating and servicing procedures.

Throughout this publication, and on tags and decals affixed to the

generator, DANGER, WARNING, CAUTION and NOTE blocks are

used to alert personnel to special instructions about a particular

service or operation that may be hazardous if performed incor-

rectly or carelessly. Observe them carefully. Their definitions are

as follows:

INDICATES A HAZARDOUS SITUATION OR ACTION WHICH, IF

NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.

Indicates a hazardous situation or action which, if not

avoided, could result in death or serious injury.

Indicates a hazardous situation or action which, if not

avoided, could result in minor or moderate injury.

NOTE:

Notes contain additional information important to a procedure

and will be found within the regular text body of this manual.

These safety warnings cannot eliminate the hazards that they

indicate. Common sense and strict compliance with the special

instructions while performing the service are essential to prevent-

ing accidents.

Four commonly used safety symbols accompany the DANGER,

WARNING and CAUTION blocks. The type of information each

indicates is as follows:

This symbol points out important safety information that,

if not followed, could endanger personal safety and/or

property of others.





This symbol points out potential explosion hazard.



This symbol points out potential fire hazard.



This symbol points out potential electrical shock hazard.

The operator is responsible for proper and safe use of the equip-

ment. The manufacturer strongly recommends that the operator

read this Owner's Manual and thoroughly understand all instruc-

tions 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.

For safety reasons, the manufacturer recommends that this

equipment be installed, serviced and repaired by a Service

Dealer or other competent, qualified electrician or installation

technician who is familiar with applicable codes, standards and

regulations. The operator also must comply with all such codes,

standards and regulations.

OPERATION AND MAINTENANCE

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 a

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 con-

tribute to the need for maintenance service.

Proper maintenance and care of the generator ensure a minimum

number of problems and keep operating expenses at a minimum.

See a Service Dealer for service aids and accessories.

Operating instructions presented in this manual assume that the

generator electric system has been installed by a Service Dealer or

other competent, qualified contractor. Installation of this equipment

is not a “do-it-yourself” project.

HOW TO OBTAIN SERVICE

When the generator requires servicing or repairs, simply contact

a Service Dealer for assistance. Service technicians are factory-

trained and are capable of handling all service needs.

When contacting a dealer about parts and service, always supply

the complete Model Number, Serial Number and Type Code (where

applicable) from the DATA LABEL that is affixed to the unit.

1-1

Safety004 Rev. F 05/10

Safety Instructions

SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted in potential

hazard areas. Safety should be stressed to all operators, potential operators, and service and repair technicians for this

equipment.

Produktspecifikationer

Varumärke:	Generac
Kategori:	Generatorn
Modell:	QT04854KNAC
Färg på produkten:	Black, Orange, White
Vikt:	12800 g
Typ produkt:	Drukspuit voor op de rug
Tank kapacitet:	14 l