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Oldal 1/146

STATIONARY EMERGENCY GENERATOR

OWNER'S MANUAL

This manual should remain with the unit.

Serial Number Industrial QT

5.4L

80kW Models

EPA Certified

A new standard of reliability

Cover146 Rev. B 03/09 Part No. 0H0942

Stationary Emergency Generator

Table of Contents

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

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

Coolant Temperature Sensing ...................................4-1

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

Oil Pressure Sensing .................................................4-1

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

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

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

DC Fuse ....................................................................4-1

FUEL SYSTEMS .....................................................5-1

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

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

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

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

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

Generator .................................................................6-1

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

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

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

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

5.4L & 6.8L Ignition Description .................................6-3

Ignition Power-up Input (“56 Line Input”) .................6-3

Ignition Enable (“14 Line Input”) ..............................6-3

Ignition Shutdown on Loss of Crank

or CAM Signals .........................................................6-3

Diagnostic Blink Patterns (Red LED Located

on the Ignition Control Board ...................................6-3

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

Generator AC Lead Connections ..................................7-1

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

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

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

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

INSTALLATION .......................................................8-1

Installation ...................................................................8-1

Preparation Before Start-up .........................................8-1

Transfer Switch ........................................................8-1

Fuel System ..............................................................8-1

Generator Set Lubrication ........................................8-1

Prior to Initial Start-up .............................................8-1

Engine Coolant .........................................................8-1

Belt Tension ..............................................................8-1

Electrical System ......................................................8-1

Initial Inspection for QT Genset Start-up .....................8-1

Start-up Checklist ........................................................8-2

Preparation for Start-up............................................8-2

Start-up Inspection ...................................................8-2

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

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

Maintenance Performed by Authorized

Service Facilities .....................................................10-1

Every Three Months ...............................................10-1

Once Every Six Months ...........................................10-1

Once Annually .........................................................10-1

First 100 Operating Hours ......................................10-1

Every 500 Operating Hours ....................................10-1

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

Checking Fluid Levels ................................................10-1

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

Battery Fluid ...........................................................10-1

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

Maintenance Owner/Operator Can Perform ................10-2

Check Engine Oil Level ...........................................10-2

Check Battery .........................................................10-2

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

Inspect Cooling System ...........................................10-2

Check Engine Coolant Level....................................10-2

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

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

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

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

Changing Engine Oil ...............................................10-2

Changing the Engine Air Cleaner ............................10-3

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

Coolant Change .......................................................10-3

Miscellaneous Maintenance ........................................10-3

Cleaning the Generator ...........................................10-3

Battery ....................................................................10-4

Battery Maintenance ...............................................10-4

Battery Replacement ...............................................10-4

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

30 kW - 150 kW Standby Gas Engine

Driven Generator Sets ............................................11-1

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

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

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

NOTES

EXPLODED VIEWS & PARTS LISTS

WIRING DIAGRAMS & SCHEMATICS

WARRANTY

Content026 Rev. A 10/08

1-1

INTRODUCTION

Thank you for purchasing this model of the Stationary Emergency

Generator set 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 near-

est Authorized 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:

DANGER

After this heading, read instructions that, if not

strictly complied with, will result in serious per-

sonal injury, including death, or property damage.

After this heading, read instructions that, if not

strictly complied with, may result in personal

injury or property damage.

After this heading, read instructions that, if not

strictly complied with, could result in damage to

equipment and/or property.

NOTE:

After this heading, read explanatory statements that require

special emphasis.

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 informa-

tion that, if not followed, could endanger per-

sonal 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.

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

an 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 workman-

ship within the terms of the warranty. Individual operating habits

and usage contribute 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 an Authorized Service Dealer for service aids and accessories.

Operating instructions presented in this manual assume that the

generator electric system has been installed by an Authorized

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

an Authorized 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.

AUTHORIZED SERVICE DEALER LOCATION

To locate the nearest AUTHORIZED

SERVICE DEALER, please call this number:

1-800-333-1322

or locate us on the web at:

www.generac.com

Stationary Emergency Generator

Important Safety Instructions

Safety 001 Rev. C 08/09

 ELECTRICAL HAZARDS 

All Stationary Emergency Generators covered by this manual • produce dangerous electrical voltages and can cause fatal

electrical shock. Utility power delivers extremely high and dan-

gerous voltages to the transfer switch as well as the generator.

Avoid contact with bare wires, terminals, connections, etc.,

on the generator as well as the transfer switch, if applicable.

Ensure all appropriate covers, guards and barriers are in place

before operating the generator. If work must be done around

an operating unit, stand on an insulated, dry surface to reduce

shock hazard.

Do not handle any kind of electrical device while stand-• ing in water, while barefoot, or while hands or feet are wet.

DANGEROUS ELECTRICAL SHOCK MAY RESULT.

If personnel must stand on metal or concrete while installing, • operating, servicing, adjusting or repairing this equipment,

place insulative mats over a dry wooden platform. Work on the

equipment only while standing on such insulative mats.

The National Electrical Code (NEC) requires the frame and • external electrically conductive parts of the generator to be con-

nected to an approved earth ground. This grounding will help

prevent dangerous electrical shock that might be caused by a

ground fault condition in the generator or by static electricity.

Never disconnect the ground wire.

Wire gauge sizes of electrical wiring, cables and cord sets must • be adequate to handle the maximum electrical current (ampac-

ity) to which they will be subjected.

Before installing or servicing this (and related) equipment, make • sure that all power voltage supplies are positively turned oﬀ at

their source. Failure to do so will result in hazardous and pos-

sibly fatal electrical shock.

Connecting this unit to an electrical system normally supplied • by an electric utility shall be by means of a transfer switch so as

to isolate the generator electric system from the electric utility

distribution system when the generator is operating. Failure to

isolate the two electric system power sources from each other

by such means will result in damage to the generator and may

also result in injury or death to utility power workers due to

backfeed of electrical energy.

Stationary Emergency Generators installed with an automatic • transfer switch will crank and start automatically when normal

(utility) source voltage is removed or is below an acceptable

preset level. To prevent such automatic start-up and possible

injury to personnel, disable the generator’s automatic start cir-

cuit (battery cables, etc.) before working on or around the unit.

Then, place a “Do Not Operate” tag on the generator control

panel and on the transfer switch.

In case of accident caused by electric shock, immediately • shut down the source of electrical power. If this is not pos-

sible, attempt to free the victim from the live conductor. AVOID

DIRECT CONTACT WITH THE VICTIM. Use a nonconducting

implement, such as a dry rope or board, to free the victim from

the live conductor. If the victim is unconscious, apply ﬁrst aid

and get immediate medical help.

Never wear jewelry when working on this equipment. Jewelry • can conduct electricity resulting in electric shock, or may get

caught in moving components causing injury.

 FIRE HAZARDS 

Keep a ﬁre extinguisher near the generator at all times. Do NOT • use any carbon tetra-chloride type extinguisher. Its fumes are

toxic, and the liquid can deteriorate wiring insulation. Keep the

extinguisher properly charged and be familiar with its use. If

there are any questions pertaining to ﬁre extinguishers, consult

the local ﬁre department.

 EXPLOSION HAZARDS 

Properly ventilate any room or building housing the generator to • prevent build-up of explosive gas.

Do not smoke around the generator. Wipe up any fuel or oil • spills immediately. Ensure that no combustible materials are left

in the generator compartment, or on or near the generator, as

FIRE or EXPLOSION may result. Keep the area surrounding the

generator clean and free from debris.

These generators may operate using one of several types • of fuels. All fuel types are potentially FLAMMABLE and/or

EXPLOSIVE and should be handled with care. Comply with all

laws regulating the storage and handling of fuels. Inspect the

unit’s fuel system frequently and correct any leaks immediately.

Fuel supply lines must be properly installed, purged and leak

tested according to applicable fuel-gas codes before placing

this equipment into service.

Diesel fuels are highly FLAMMABLE. Gaseous ﬂuids such • as natural gas and liquid propane (LP) gas are extremely

EXPLOSIVE. Natural gas is lighter than air, and LP gas is heavier

than air; install leak detectors accordingly.

1-3

Stationary Emergency Generator

Important Safety Instructions

Safety 001 Rev. C 08/09

ENGINE PROTECTIVE DEVICES

The Stationary Emergency Generator may be required

to operate for long periods of time without an opera-

tor on hand to monitor such engine conditions as

coolant temperature, oil pressure or rpm. For that

reason, the engine has several devices designed to

protect it against potentially damaging conditions by

automatically shutting down the unit when the oil

pressure is too low, the coolant temperature is too

high, the coolant level is too low, or the engine is run-

ning too fast.

NOTE:

Engine protective switches and sensors are men-

tioned here for the reader's convenience. Also refer

to the applicable control panel manual for addi-

tional automatic engine shutdown information.

COOLANT TEMPERATURE SENSING 

An analog Water Temperature Sender (WTS) is locat-

ed in the engine's cooling system. This sender is con-

nected to the panel and allows the panel to monitor

and display the temperature of the coolant system.

The WTS is a resistive device whose resistance chang-

es based on coolant temperature. The resistance of

the sender results in a voltage being developed across

the sender. As the Coolant temperature increases,

the resistance will decrease, causing the voltage to

decrease. This changing voltage is converted to 4-

20mA signal by a signal conditioner module. The

corresponding 4-20mA signal is read by the control

panel and displayed as the coolant temperature.

The control panel will monitor and display the cool-

ant temperature anytime the DC input to the control

panel is present.

If the temperature exceeds approximately 140° C

(284° F), the engine shutdown will be initiated. The

generator will automatically restart and the display

will reset once the temperature has returned to an

operating level.

LOW COOLANT LEVEL 

A Low Coolant Level (LCL) sensor is placed in the

generators coolant system. This sensor allows the

panel to detect a Low Coolant Level condition.

The LCL is a resistive device whose resistance changes

rapidly based on the presence or absence of coolant.

The resistance of the LCL results in a voltage being

developed across the LCL. This voltage changes as

the resistance changes. This changing voltage is con-

verted to 4-20mA signal by a signal conditioner mod-

ule. The corresponding 4-20mA signal is read by the

control panel and displayed as the low coolant level.

If the level of the engine coolant drops below the level

of the low coolant level sensor, the engine shutdown

will be initiated.

OIL PRESSURE SENSING 

An analog Oil Pressure Sender (OPS) is used for

monitoring the engine oil pressure. This sender

allows the control panel to measure and display the

Engine oil pressure.

The OPS is a resistive device, whose resistance

changes based on engine oil pressure. The resistance

of the sender results in a voltage being developed

across the sender. As the oil pressure increases,

the resistance will decrease, causing the voltage to

decrease. This changing voltage is converted to 4-

20mA signal by a signal conditioner module. The

corresponding 4-20mA signal is read by the control

panel and displayed as the oil pressure.

The control panel will monitor and display oil pres-

sure anytime the DC input to the control panel is

present.

Should the oil pressure drop below the 8 psi range,

the engine shutdown is initiated. The unit should not

be restarted until oil is added. Turn the AUTO/OFF/

MANUAL switch to the OFF position, then back to

AUTO to restart.

OVERCRANK SHUTDOWN 

When the control panel receives a start signal, it ini-

tiates the programmed starting sequence. The start

sequence consists of the number of crank attempts,

the length of each crank attempt, and the rest time

between each crank attempt. If the engine has not

started by the end of the final crank attempt, an

Overcrank alarm is generated, the control panel will

sound the alarm and display the message "Failed to

start".

OVERSPEED  SHUTDOWN

A speed circuit controls engine cranking, start-up,

operation and shutdown. Engine speed signals are

delivered to the circuit board whenever the unit is

running. Should the engine over speed above a safe,

preset value, the circuit board initiates an automatic

engine shutdown. Contact the nearest Authorized

Dealer if this failure occurs.

RPM SENSOR LOSS SHUTDOWN 

If the speed signal to the control panel is lost, engine

shutdown will occur.

DC FUSE 

This fuse is located inside of the control panel. It

protects the panel wiring and components from

damaging overload. Always remove this fuse before

commencing work on the generator. The unit will

not start or crank if the fuse is blown. Replace the

fuse with one of the same size, type, and rating. (See

the exploded views and parts lists at the end of this

manual for replacement part number.)

4-1

Stationary Emergency Generator

Engine Protective Devices

EngProt002 Rev. C 10/08

Termékspecifikációk

Márka:	Generac
Kategória:	nincs kategorizálva
Modell:	QT08054JNANA

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