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Generac Power Systems 004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, 004726-0 User Manual

Generac Power Systems 004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, 004726-0
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Owner’s Manual
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT
INSTALLATION!!
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!
This manual should remain with the unit.
Not intended for use in critical life support applications.
!
!
Liquid-cooled, Prepackaged
Standby Generators
Model Numbers
004721-0, 004722-0,
004723-0, 004724-0,
004725-0, 004725-1,
004725-2, 004725-3,
004726-0

Table of Contents

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Generac Power Systems 004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, 004726-0 Specifications

General IconGeneral
BrandGenerac Power Systems
Model004721-0, 004722-0, 004723-0, 004724-0, 004725-0, 004725-1, 004725-2, 004725-3, 004726-0
CategoryInverter
LanguageEnglish

Summary

INTRODUCTION

READ THIS MANUAL THOROUGHLY

Emphasizes the importance of reading and understanding the manual for safe operation.

SAFETY RULES

GENERAL HAZARDS

Covers general safety precautions and warnings applicable to the generator.

ELECTRICAL HAZARDS

Details specific dangers and precautions related to electrical shock and voltage.

FIRE HAZARDS

Outlines safety measures to prevent fires associated with the generator.

EXPLOSION HAZARDS

Provides warnings and precautions regarding potential explosions.

OPERATION AND MAINTENANCE

OPERATION AND MAINTENANCE GUIDELINES

Outlines operator responsibilities for safe operation and maintenance.

HOW TO OBTAIN SERVICE

SERVICE AND REPAIR LOCATOR

Guides users on how to find authorized service dealers for assistance.

GENERAL INFORMATION

1.1 GENERATOR OVERVIEW

Describes the generator's function, ratings, and model numbers.

1.2 TRANSFER SWITCH REQUIREMENTS

Details the necessity and guidelines for installing a transfer switch.

1.3 AUTOMATIC SYSTEM OPERATION

Explains the sequence of events for automatic generator start and operation.

1.4 GENERATOR AC CONNECTION SYSTEMS

Describes the single-phase, three-wire AC output configuration.

1.5 MAIN CIRCUIT BREAKER

Identifies the main circuit breaker included with the unit.

1.6 GENERATOR FUEL SYSTEM

Discusses the factory fuel system and options for propane conversion.

1.7 ENGINE PROTECTIVE DEVICES

Explains safety switches that automatically shut down the engine.

1.8 UNPACKING AND INSPECTION

Provides instructions for safe unpacking and initial inspection of the generator.

1.9 LIFTING THE GENERATOR

Offers safety warnings and guidelines for lifting the generator.

1.10 SPECIFICATIONS

Lists detailed technical specifications for the generator and engine.

1.11 FUEL CONSUMPTION

Provides data on fuel usage for different models and fuel types.

1.12 RECONFIGURING THE FUEL SYSTEM

Guides on converting the fuel system from natural gas to propane.

INSTALLATION

1.13 TORQUE SPECIFICATIONS

Lists specific torque values for engine component assembly.

1.14 ENGINE OIL RECOMMENDATIONS

Advises on the correct type and viscosity of engine oil for various temperatures.

1.15 COOLANT RECOMMENDATIONS

Provides guidance on coolant mixture and type for the cooling system.

1.16 BEFORE INSTALLATION

Lists essential checks and considerations before starting the installation process.

2.1 STANDBY GENERATOR INSTALLATION

Details the critical steps and safety requirements for installing the standby generator.

2.2 GENERATOR LOCATION

Provides guidelines for selecting an optimal and safe installation site for the generator.

2.3 GENERATOR MOUNTING AND SUPPORT

Describes the requirements for securely mounting the generator.

2.4 BASIC STANDBY ELECTRIC SYSTEM

Illustrates a typical standby electric system setup with a transfer switch.

2.5 EMERGENCY CIRCUIT ISOLATION METHOD

Explains a method to manage critical loads within generator capacity.

2.6 TOTAL CIRCUIT ISOLATION METHOD

Describes a method for powering all loads, with potential for generator overload.

2.7 GROUNDING THE GENERATOR

Details the importance and procedure for properly grounding the generator.

2.8 GENERATOR AC NEUTRAL CONNECTIONS

Discusses the generator's ungrounded AC neutral and grounding recommendations.

2.9 TRANSFER SWITCH START SIGNAL CONNECTIONS

Explains how to connect the start signal wires for automatic transfer switch operation.

2.10 BATTERY INSTALLATION

Provides detailed instructions and safety warnings for installing the generator battery.

2.11 PREPARATION BEFORE START-UP

Outlines essential steps to prepare the generator for its initial start-up.

OPERATION

2.11.2 TRANSFER SWITCH

Reinforces transfer switch installation requirements and compliance.

2.11.3 FUEL SYSTEM

Covers checks for the fuel supply system before operating the generator.

2.11.4 GENERATOR SET LUBRICATION

Details checks for engine oil level and recommendations.

2.11.5 ENGINE COOLANT

Explains checks for the engine cooling system and coolant.

2.11.6 BELT TENSION

Describes how to check and adjust engine fan belt tension.

2.11.7 ELECTRICAL SYSTEM

Covers pre-operation checks for the electrical system and battery.

3.1 USING A STANDARD "GTS" TRANSFER SWITCH

Explains the operation of the generator with a Generac GTS transfer switch.

3.2 CONTROL CONSOLE COMPONENTS

Identifies and describes the various components on the generator's control console.

3.3 MANUAL TRANSFER AND START-UP

Details the procedure for manually transferring loads and starting the engine.

3.4 AUTOMATIC OPERATION

Guides on setting up the system for fully automatic operation.

3.5 WEEKLY EXERCISE CYCLE

Explains the process for setting and performing the weekly generator exercise cycle.

MAINTENANCE

3.6 ENGINE HEATER

Describes the function and connection of the engine block heater.

4.1 MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES

Lists maintenance tasks recommended for authorized service facilities at various intervals.

4.2 COOLING SYSTEM

Discusses maintaining unobstructed airflow and exhaust system safety.

4.3 OVERLOAD PROTECTION FOR ENGINE DC ELECTRICAL SYSTEM

Explains the DC electrical system's overload protection mechanisms.

4.4 CHECKING FLUID LEVELS

Details procedures for checking engine oil, battery fluid, and coolant levels.

4.5 MAINTENANCE OWNER/OPERATOR CAN PERFORM

Lists routine maintenance tasks that owners can perform.

4.5.4 INSPECT COOLING SYSTEM

Describes monthly inspection of cooling system hoses and clamps.

4.5.6 PERFORM VISUAL INSPECTION

Outlines a monthly visual inspection for damage and leaks.

4.5.7 INSPECT EXHAUST SYSTEM

Details quarterly inspection of the exhaust system components.

4.5.8 CHECK FAN BELT

Describes inspection and tension check of fan belts.

4.5.9 INSPECT ENGINE GOVERNOR

Advises on visual inspection of the electronic governor and cautions against adjustment.

4.5.10 CHANGING ENGINE OIL

Provides step-by-step instructions for changing engine oil and oil filter.

4.5.11 CHANGING THE ENGINE AIR CLEANER

Guides on how to replace the engine air cleaner element.

4.5.12 SPARK PLUGS

Details procedures for checking, cleaning, gapping, or replacing spark plugs.

4.5.13 COOLANT CHANGE

Recommends annual coolant draining, flushing, and refilling by a service facility.

4.6 MISCELLANEOUS MAINTENANCE

Covers general maintenance tasks like cleaning and battery handling.

4.6.3 BATTERY MAINTENANCE

Outlines procedures for inspecting battery posts, cables, and fluid levels.

4.6.4 BATTERY REPLACEMENT

Specifies the correct battery type and number for replacement.

4.7 SCHEDULED MAINTENANCE

Presents a comprehensive schedule for recurring maintenance tasks based on time or hours.

TROUBLESHOOTING

5.1 TROUBLESHOOTING POINTS

A table listing common problems, their causes, and recommended corrections.

INSTALLATION DIAGRAM

SECTION 7 - INSTALLATION DIAGRAM

Visual representation of the generator's physical layout and connections.

ELECTRICAL DATA

SECTION 8 - ELECTRICAL DATA

Contains wiring diagrams and electrical schematics for the generator system.

WIRING DIAGRAM – CONTROL PANEL

Detailed wiring diagram for the generator's control panel assembly.

WIRING DIAGRAM 1.5L ENGINE

Wiring diagram specific to the 1.5L engine used in the generator.

ELECTRICAL SCHEMATIC 1.5L

Provides a schematic representation of the generator's electrical system.

EXPLODED VIEWS AND PARTS LISTS

GOVERNOR ASSEMBLY

Exploded view and parts list for the generator's governor assembly.

MOUNTING BASE

Exploded view and parts list for the generator's mounting base.

STANDARD COMPARTMENT

Exploded view and parts list for the generator's standard compartment.

ACOUSTIC COMPARTMENT

Exploded view and parts list for the generator's acoustic compartment.

CONTROL PANEL

Exploded view and parts list for the generator's control panel.

ENGINE

Exploded view and parts list for the generator's engine components.

RADIATOR

Exploded view and parts list for the generator's radiator assembly.

FUEL SYSTEM

Exploded view and parts list for the generator's fuel system components.

ALTERNATOR

Exploded view and parts list for the generator's alternator assembly.

WARRANTY

CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

Explains warranty rights and obligations specific to California emissions standards.

MANUFACTURER'S EMISSION CONTROL SYSTEM WARRANTY COVERAGE

Details the warranty coverage for emission-related components.

PURCHASERʼS/OWNER'S WARRANTY RESPONSIBILITIES

Outlines the owner's responsibilities regarding maintenance and warranty claims.

EMISSION CONTROL SYSTEM WARRANTY

Provides general terms and applicability of the emission control system warranty.

GENERAC POWER SYSTEMS STANDARD "TWO YEAR" LIMITED WARRANTY

Details the standard two-year limited warranty for Guardian prepackaged generators.

WARRANTY SCHEDULE

Outlines the warranty coverage for labor and parts over the specified period.

THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING

Lists exclusions and conditions that void the warranty.

EMISSION RELATED PARTS INCLUDE THE FOLLOWING

Lists specific components considered emission-related parts under warranty.

GENERAC'S ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT

States limitations on Generac's liability for damages.

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