Generac Power Systems Introduction, Authorized Service Dealer Location, ‹ HOW to Obtain Service

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INTRODUCTION

Thank you for purchasing this model of the standby generator set product line by Generac Power Systems.

Every effort was expended to make sure that the information and instructions in this manual are both accurate and current at the time the manual was writ- ten. 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, con- tact the nearest Generac 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 person- nel to special instructions about a particular service or operation that may be hazardous if performed incor- rectly or carelessly. Observe them carefully. Their defi- nitions are as follows:

DANGER

After this heading, read instructions that, if not strictly complied with, will result in personal injury 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 compli- ance with the special instructions while performing the service are essential to preventing 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 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 equipment. Generac strongly recommends that the operator read this Owner's Manual and thor- oughly understand all instructions before using this equipment. Generac 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 a Generac Authorized Service Dealer. Normal maintenance serv- ice 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 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 a Generac Authorized Service Dealer for service aids and accessories.

Operating instructions presented in this manual assume that the standby electric system has been installed by a Generac 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, contact a Generac Authorized Service Dealer for assistance. Service technicians are factory-trained and are capable of handling all of servicing needs.

When contacting a Generac Authorized Service Dealer about parts and service, always supply the complete model number of the unit as given on the front cover of this manual or on the DATA LABEL affixed to the unit.

AUTHORIZED SERVICE

DEALER LOCATION

To locate the nearest GENERAC AUTHORIZED

SERVICE DEALER, please call this number:

1-800-333-1322

OR

Locate us on the web at:

www.generac.com

Generac® Power Systems, Inc.

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Contents Liquid-cooled, Prepackaged Standby Generators ‹ HOW to Obtain Service Authorized Service Dealer Location‹ Operation and Maintenance IntroductionIntroduction IFC Safety Rules General Hazards Electrical Hazards Automatic System Operation Transfer SwitchGenerator Generator AC Connection Systems‹ 1.7.3 LOW Coolant Level Switch ‹ 1.7.1 LOW OIL Pressure Switch‹ 1.7.2 High Coolant Temperature Switch Engine Protective DevicesUnpacking Lifting the Generator‹ 1.10.1 Generator Specifications SpecificationsReconfiguring the Fuel System ‹ 1.10.2 Engine SpecificationsCoolant Recommendations Torque SpecificationsEngine OIL Recommendations Basic Standby Electric System Generator LocationGenerator Mounting Support ‹ 2.1.1 Nfpa StandardsTotal Circuit Isolation Method Transfer Switch Start Signal ConnectionsEmergency Circuit Isolation Method Grounding the Generator‹ 2.10.1 Vented Batteries Battery InstallationPreparation Before START-UP ‹ 2.11.1 Prior to Initial START-UPUsing a Standard GTS Transfer Switch Weekly Exercise Cycle Control Console ComponentsManual Transfer START-UP Automatic Operation Once Every SIX Months Engine HeaterEvery Three Months Once AnnuallyOverload Protection for Engine DC Electrical System Cooling SystemChecking Fluid Levels ‹ 4.5.3 Exercise System ‹ 4.5.2 Check Battery‹ 4.5.1 Check Engine OIL Level ‹ 4.5.4 Inspect Cooling System‹ 4.6.1 Cleaning the Generator Miscellaneous Maintenance‹ 4.5.11 Changing the Engine AIR Cleaner ‹ 4.5.13 Coolant Change‹ 4.6.3 Battery Maintenance ‹ 4.6.4 Battery ReplacementScheduled Maintenance Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Points Problem Cause CorrectionGuardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Installation Diagram Section Electrical Data Customer Connection 120/240V 1-PHASE Electrical Data Cover Connector Housing Housing Governor ConnectorConnector Interface Assembly ASM Motor StepperDampener Vibration Base Mounting 1.5L Stnrd & AcstcWasher Shakeproof EXT 5/16 STL Washer Flat 5/16 ZincWeld Stud Under Roof Panel for Access Cover Cable Assembly Cover Access Assembly BASE-DOOR Ground WireGRD Wire Assy 99HSB Cover Access GENWeld Stud Under Roof For Access Cover Cable Washer Self Locking Dome Roof Acstc & Stnd Cmprtmnt 1.5LDoor Weldment 1.5 EPS Baffle Cntrl PNL 1.5L AcousticTo a Hourmeter Wire AssemblySilksc Holder FuseWaterpump Hardware Ground Wire Starter Switch OIL PressureARM Adjust Alternator Clamp for Wiring Harness not Shown16 7 Venturi 1.5L Modine Tank Coolant RecoveryRadiator 1.5L Guard FAN 1.5L ModineVapor Weldment Mounting Base Cover AIR CleanerGasket AIR Cleaner Adapter Flange Fuel Inlet16 30 21 Assy Rotor 15KW Housing BlowerAssy Rotor 10KW Assy Rotor 20KWBRACKET, Battery Hold Down ASSY,WIRE#16 REDBOOT, Battery Cable Battery Post Cover RED+Saddle 2 Inch Manifold Exhaust 1.5LNipple TOE 1.5NPTX5.5 BLK Iron PIPE,EXHAUST 1.5L STNDRD&ACSTCPURCHASER’S/OWNER’S Warranty Responsibilities Your Warranty Rights and ObligationsMANUFACTURER’S Emission Control System Warranty Coverage Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule

004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, 004726-0 specifications

Generac Power Systems is a leader in energy solutions, committed to providing reliable power products for homes, businesses, and industrial applications. Among their extensive range of products, the Generac Power Systems models 004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, and 004726-0 stand out due to their advanced features and innovative technologies.

One of the key features of these models is the robust engine performance. They are designed with Generac's signature engines, which ensure optimal power output and durability. This leads to better energy efficiency while maintaining a low operating cost. The models are engineered for seamless operation under various load conditions, ensuring that you stay powered in any situation.

These Generac models also incorporate state-of-the-art transfer switch technology, which enhances their reliability. The transfer switches ensure that power is instantly transferred from the grid to the generator during an outage, allowing for uninterrupted service. This is especially critical for homes and businesses where power reliability is essential.

Combining convenience with efficiency, the models feature user-friendly interfaces that simplify operation. With available mobile monitoring options, users can keep track of their power status and diagnostics remotely. This is a game changer for individuals who want to maintain oversight of their energy solutions without being physically present.

Safety is another critical aspect integrated into the Generac Power Systems. The models are equipped with advanced safety features such as overload protection, low oil shutdown, and high-temperature shutdown, ensuring an added layer of security for users.

Moreover, these models are built with rugged construction materials making them suitable for all environmental conditions. Whether it’s extreme cold or heat, they are crafted to withstand the elements while performing at peak efficiency.

Generac Power Systems emphasizes sustainability as well, with models designed for lower emissions and quieter operation. This is ideal for homeowners and businesses conscious of their environmental impact and seeking to reduce noise pollution.

Overall, the Generac Power Systems models 004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, and 004726-0 represent the evolution of power generation technology. With their robust features, efficient operation, and commitment to safety, these generators are an excellent investment for anyone seeking reliable power solutions.