Table of Contents
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C
US
LISTED
Not intended for use as Primary Power in place of utility or in
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!
Installation and
Owner's Manual
life-support applications.
DANGER
Air-cooled, Prepackaged
Automatic Standby Generators
Models:
04389-3 (6 kW NG, 7 kW LP)
04456-3 (12 kW NG, 12 kW LP)
04390-3 (13 kW NG, 15 kW LP)
GENERAC
POWER SYSTEMS, INC.
R
R
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Table of Contents
Related Manuals for Guardian Plus 04390-3
Summarization of Contents
Installation and Owner's Manual
Safety Warnings: Exhaust and Installation
Highlights critical safety warnings regarding exhaust fumes and outdoor installation.
Introduction and Manual Overview
Read This Manual Thoroughly
Emphasizes the importance of reading and understanding the manual for safe operation.
Safety Indicator Explanations
Explains the meaning and usage of DANGER, WARNING, CAUTION, and NOTE indicators.
Operation and Maintenance Responsibilities
Defines the operator's responsibility for safe use and maintenance of the equipment.
How to Obtain Service and Dealer Locator
Provides information on obtaining service and locating authorized dealers.
Safety Rules and General Hazards
Important Safety Instructions
Provides essential safety rules for operating and maintaining the generator.
Engine Exhaust and Operating Hazards
Warns about hazardous chemicals in exhaust and dangers of imprudent operation.
General Hazards and Precautions
Covers general hazards like electrical shock, moving parts, and proper installation.
Specific Safety Hazards
Electrical Hazards and Precautions
Details risks of electrical shock, safe practices, and grounding requirements.
Fire and Explosion Hazards
Warns about fire and explosion risks from fuel and the need for proper installation.
Standards Index
Lists relevant industry standards and codes for installation guidance.
Section 1 - General Information
Unpacking and Inspection Procedures
Instructions for unpacking and inspecting the generator set for damage upon delivery.
Protection Systems Overview
Describes engine protection systems like low oil pressure and high temperature sensors.
Arc Fault Circuit Interrupter Requirements
Explains the National Electrical Code requirement for AFCI breakers in bedrooms.
The Generator Component Identification
7 kW Engine Component Diagram
Diagram showing components of the 7 kW single-cylinder engine model.
12/15 kW Engine Component Diagram
Diagram showing components of the 12 kW and 15 kW V-twin engine models.
Generator and Engine Specifications
Generator Specifications
Provides detailed electrical and performance specifications for the generator models.
Engine Specifications
Details the specifications for the GH-410, GT-760, and GT-990 engines.
System Status and Fuel Requirements
System Set LED Indicator Function
Explains the conditions under which the 'System Set' LED illuminates.
Fuel Requirements and Consumption Data
Specifies fuel types, pressure requirements, and fuel consumption rates.
Reconfiguring Fuel System (7 kW Engine)
Step-by-step guide to reconfigure the fuel system from NG to LP for the 7 kW engine.
Fuel System Reconfiguration and Location
Reconfiguring Fuel System (12/15 kW Engines)
Instructions for reconfiguring the fuel system from NG to LP for 12kW and 15kW engines.
Generator Location Guidelines
Guidance on selecting an appropriate outdoor location for generator installation, considering airflow and access.
Transfer Switch and Battery Installation
Transfer Switch Installation Rules
Provides rules and guidelines for installing the transfer switch indoors.
Battery Installation Procedure
Steps for safely installing the generator's battery, including pre-installation checks.
Battery Safety Precautions
Details critical safety precautions and hazards associated with handling the battery.
Section 2 – Post Installation Start-up
Before Initial Start-up Checks
Lists essential checks and preparations required before the initial start-up of the generator.
Electrical Checks and Voltage Verification
Details the necessary electrical checks, including utility voltage verification.
Generator Testing and Automatic Operation Checks
Generator Tests Under Load
Step-by-step guide for testing the generator set with electrical loads applied.
Checking Automatic Operation Sequence
Procedure to verify the system's proper automatic operation during utility failure and restoration.
Automatic Operation and Regulator Adjustment
Automatic Operation Sequence Details
Details the sequence of events for automatic generator start-up, transfer, and shutdown during utility failure.
Natural Gas Regulator Adjustment
Procedure for adjusting the natural gas regulator to optimize performance, requiring a frequency meter.
Engine Governor Adjustment Procedures
7 kW Units Governor Adjustment
Step-by-step guide for adjusting the engine governor for the 7 kW units to set frequency.
12/15 kW Units Governor Adjustment
Procedure for adjusting the engine governor for 12 kW and 15 kW units, focusing on full load frequency.
Governor, Corrosion Protection, and Voltage Regulator
Governor Adjustment Notes and Voltage Regulator
Notes on governor adjustment, including frequency settings and potential need for voltage regulator adjustment.
Additional Corrosion Protection
Recommendation for periodic application of corrosion inhibiting spray on engine linkage parts.
Voltage Regulator Adjustment Procedure
Procedure for adjusting the voltage regulator to achieve specified line voltage readings.
Section 3 - Operation
Break-in Procedure
Recommended procedure for breaking in the generator after installation for optimal future operation.
Using the Auto/Off/Manual Switch
Explains the operation and function of the AUTO/OFF/MANUAL switch for controlling the generator.
Switch Functions and Automatic Transfer Operation
Auto/Off/Manual Switch Functions
Describes the operation of the OFF, MANUAL, and AUTO switch positions.
Automatic Transfer Operation Steps
Guides the user on selecting automatic operation by setting the transfer switch and generator controls.
Sequence of Automatic Operation
Details the sequence of events for automatic generator start-up, transfer, and shutdown during utility failure.
Automatic Operation Details and Protection Systems
Automatic Operation Sequence Logic
Explains how sensors and timers control the automatic operation sequence, including voltage drop and retransfer delays.
Manual Transfer Operation Procedures
Steps for manually starting the generator and transferring loads to the generator or utility power.
Setting the Exercise Timer
Instructions for setting the exercise timer to schedule periodic generator self-testing.
Generator Protection Systems
Describes low oil pressure, high temperature, and overcrank protection features.
Section 4 - Maintenance
Fuse Identification and Replacement
Identifies the generator's fuses, their locations, and their functions for control and accessory circuits.
Checking Engine Oil Level
Provides instructions for checking the engine oil level and notes on proper filling.
Engine Oil and Filter Maintenance
Engine Oil Recommendations and Change
Specifies recommended oils and provides a step-by-step guide for changing the engine oil.
Oil Filter Replacement Procedure
Instructions for removing the old oil filter and installing a new one, including gasket preparation.
Engine Air Cleaner Replacement
Procedure for accessing and replacing the engine air cleaner element for all generator models.
Spark Plug and Battery Maintenance
Spark Plug Gap and Replacement
Instructions for cleaning, checking, and adjusting the spark plug gap or replacing the spark plug.
Battery Inspection and Safety Precautions
Details battery inspection, cleaning, electrolyte checks, and safety precautions.
Valve Clearance, Cooling System, and Battery Safety
Battery Electrolyte Handling and Safety
Provides crucial safety information and procedures for handling battery electrolyte.
Valve Clearance Adjustment Procedure
Step-by-step guide for adjusting engine valve clearance for proper long-term engine life.
Cooling System Airflow Requirements
Emphasizes the need for unobstructed airflow for the cooling system to prevent overheating.
Out of Service Procedures
Generator Removal from Service
Procedure for preparing the generator for extended storage when not in use.
Returning Generator to Service
Steps for returning the generator to service after a period of storage.
Section 4 - Maintenance
Comprehensive Service Schedule
Provides a comprehensive schedule for inspecting, cleaning, and changing components based on frequency.
Section 5 - Troubleshooting
Troubleshooting Guide for Common Problems
A guide to identify common problems, their causes, and recommended corrective actions.
Section 7 - Electrical Data
V-Twin Engine Wiring Diagram
Wiring diagram for the V-Twin engine models, illustrating electrical connections.
Electrical Diagram Key
Key explaining the symbols and abbreviations used in the electrical wiring diagrams.
Control Panel Box Components
Control Panel Box Layout
Diagram showing components within the control panel box, including circuit breakers and outlets.
V-Twin Electrical Schematic
V-Twin Electrical Schematic Diagram
Schematic diagram illustrating the electrical system for V-twin engine models.
Electrical Schematic Legend
Legend explaining the symbols and abbreviations used in the electrical schematics.
Single Cylinder Engine Wiring Diagram
Single Cylinder Wiring Diagram
Wiring diagram for the single-cylinder engine models, showing electrical connections.
Wiring Diagram Legend
Key explaining the symbols and abbreviations used in the electrical wiring diagrams.
Single Cylinder Electrical Schematic
Single Cylinder Schematic Diagram
Schematic diagram illustrating the electrical system for single-cylinder engine models.
8 Circuit Load Center Wiring Diagram
8 Circuit Load Center Connections
Wiring diagram for the 8-circuit load center, showing circuit connections and panel layout.
8 Circuit Load Center Wiring Details
8 Circuit Load Center Diagram
Detailed wiring diagram for the 8-circuit load center, including ATS and transfer relay connections.
Load Center Wiring Legend
Legend explaining the symbols and abbreviations used in the load center wiring diagrams.
12 Circuit Load Center Wiring Diagram
12 Circuit Load Center Connections
Wiring diagram for the 12-circuit load center, illustrating circuit connections and panel layout.
12 Circuit Load Center Wiring Details
12 Circuit Load Center Diagram
Detailed wiring diagram for the 12-circuit load center, showing ATS and transfer relay connections.
Load Center Wiring Legend
Legend explaining the symbols and abbreviations used in the load center wiring diagrams.
8 Circuit Load Center Schematic
8 Circuit Load Center Schematic Diagram
Schematic wiring diagram for the 8-circuit load center, detailing component connections.
12 Circuit Load Center Schematic
12 Circuit Load Center Schematic Diagram
Schematic wiring diagram for the 12-circuit load center, detailing component connections.
Section 8 - Exploded Views and Parts Lists
Generator Enclosure Exploded View
Exploded view of the generator enclosure, showing all external and internal parts.
Section 8 - Exploded Views and Parts Lists
Generator Enclosure Parts List
List of part numbers and descriptions for the generator enclosure components.
Section 8 - Exploded Views and Parts Lists
Control Panel Exploded View
Exploded view of the control panel assembly, illustrating its components and their layout.
Section 8 - Exploded Views and Parts Lists
Control Panel Parts List
List of part numbers and descriptions for the control panel assembly components.
Section 8 - Exploded Views and Parts Lists
7 kW, 8 Circuit Load Center Exploded View
Exploded view of the 7 kW, 8-circuit load center assembly, showing its parts.
Section 8 - Exploded Views and Parts Lists
7 kW, 8 Circuit Load Center Parts List
List of part numbers and descriptions for the 7 kW, 8-circuit load center assembly.
Section 8 - Exploded Views and Parts Lists
12/15 kW, 12 Circuit Load Center Exploded View
Exploded view of the 12 kW/15 kW, 12-circuit load center assembly, showing its parts.
Section 8 - Exploded Views and Parts Lists
12/15 kW, 12 Circuit Load Center Parts List
List of part numbers and descriptions for the 12 kW/15 kW, 12-circuit load center assembly.
Section 8 - Exploded Views and Parts Lists
GT-990/760 Engine - Part 1 Exploded View
Exploded view of the GT-990/760 engine (Part 1), showing major engine components.
Section 8 - Exploded Views and Parts Lists
GT-990/760 Engine - Part 1 Parts List
List of part numbers and descriptions for the GT-990/760 engine (Part 1).
Section 8 - Exploded Views and Parts Lists
GT-990/760 Engine - Part 2 Exploded View
Exploded view of the GT-990/760 engine (Part 2), showing engine accessories and components.
Section 8 - Exploded Views and Parts Lists
GT-990/760 Engine - Part 2 Parts List
List of part numbers and descriptions for the GT-990/760 engine (Part 2).
Section 8 - Exploded Views and Parts Lists
7 kW Generator Exploded View
Exploded view of the 7 kW generator, showing its main components and assembly.
Section 8 - Exploded Views and Parts Lists
7 kW Generator Parts List
List of part numbers and descriptions for the 7 kW generator components.
Section 8 - Exploded Views and Parts Lists
12/15 kW Generator Exploded View
Exploded view of the 12/15 kW generator, showing its main components and assembly.
Section 8 - Exploded Views and Parts Lists
12/15 kW Generator Parts List
List of part numbers and descriptions for the 12/15 kW generator components.
Section 8 - Exploded Views and Parts Lists
GN410 Engine - Part 1 Exploded View
Exploded view of the GN410 engine (Part 1), showing major engine components.
Section 8 - Exploded Views and Parts Lists
GN410 Engine - Part 1 Parts List
List of part numbers and descriptions for the GN410 engine (Part 1).
Section 8 - Exploded Views and Parts Lists
GN410 Engine - Part 2 Exploded View
Exploded view of the GN410 engine (Part 2), showing engine accessories and components.
Section 9 – Mounting Dimensions
Generator Mounting Dimensions and Clearances
Provides critical dimensions and clearance requirements for generator installation.
Section 10 - Warranty
California Emission Control Warranty Statement
Statement detailing emission control system warranty rights and obligations for California.
Emission Control System Warranty
ECS Warranty Coverage and Applicability
Defines the coverage period, applicability, and general warranty provisions for emission control systems.
Emission Related Parts List
Lists components considered emission-related parts covered under the ECS warranty.
Generac Two-Year Limited Warranty
Warranty Schedule and Transferability
Outlines the transferable coverage for labor and parts over a two-year period.
Warranty Exclusions and Limitations
Lists conditions and situations that are not covered by this warranty.
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