This manual should remain with the unit
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY
Not intended for use as Primary Power in place of utility or
POWER SYSTEMS
OPERATION AND MAINTENANCE
CONTENTS
HOW TO OBTAIN SERVICE
INTRODUCTION
Table of Contents
Safety Rules
DANGER
GENERAL HAZARDS
Despite the safe design of this generator
Parts of the generator are rotating and/or hot
FIRE HAZARDS
ELECTRICAL HAZARDS
EXPLOSION HAZARDS
STANDARDS INDEX
1.1 UNPACKING/INSPECTION
1.3.1 SECTION 210.12 ARC FAULT CIRCUIT INTERRUPTER PROTECTION
1.2 PROTECTION SYSTEMS
BREAKER FOR BEDROOMS
1.4 THE GENERATOR
Figure 1.1 - 7 kW, Single Cylinder GH-410 Engine
Figure 1.2 - 12 kW and 15 kW, V-twin GT-990 Engine
1.5.1 GENERATOR
1.5 SPECIFICATIONS
1.5.2 ENGINE
Section 1 - General Information
1.6 SYSTEM SET LED
1.9 RECONFIGURING THE FUEL SYSTEM
1.7 FUEL REQUIREMENTS AND RECOMMENDATIONS
1.8 FUEL CONSUMPTION
1.10 LOCATION
1.10.2 TRANSFER SWITCH 1.10.2.1 7 kW, 12 kW and 15 kW Units
1.9.2 12KW AND 15KW, 990CC ENGINES
1.10.1 GENERATOR
1.12 THE BATTERY
1.11 BATTERY INSTALLATION
Figure 1.5 - Battery Cable Connections
Use tools with insulated handles Wear rubber gloves and boots
2.1 BEFORE INITIAL START-UP
2.2 CHECK TRANSFER SWITCH OPERATION
2.3 ELECTRICAL CHECKS
Do not open or mutilate the battery. Released
2.4 GENERATOR TESTS UNDER LOAD
2.5 CHECKING AUTOMATIC OPERATION
DANGER
Figure 2.2 - Placement of Regulator
2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLY
Figure 2.1 - Dual Fuel Regulators
Do not make any unnecessary adjustments
2.8 VOLTAGE REGULATOR ADJUSTMENT
2.7 ENGINE GOVERNOR ADJUSTMENT
Figure 2.3 - Engine Governor Adjustment
Figure 2.4 - Full Load Speed Adjust Screw
3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE
3.1 BREAK-IN PROCEDURE
3.3 AUTOMATIC TRANSFER OPERATION
3.2.1 “AUTO” POSITION
3.5.1 TRANSFER TO GENERATOR POWER SOURCE
Figure 3.2 - Manual Transfer Switch Operation
3.5 MANUAL TRANSFER OPERATION
3.4 SEQUENCE OF AUTOMATIC OPERATION
3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE
3.6 SETTING THE EXERCISE TIMER
3.7.1 LOW OIL PRESSURE SWITCH
3.7.2 HIGH TEMPERATURE SWITCH
3.7.3.1 Approximate Crank Cycle Times
4.2 CHECKING THE ENGINE OIL LEVEL
3.7.4 OVERSPEED
Figure 4.2 - Oil Dipstick and Fill, 7 kW
4.3.2 OIL CHANGE PROCEDURE
4.5 CHANGING THE ENGINE AIR CLEANER
Figure 4.6 - 7 kW, Engine Air Cleaner Location
4.3 CHANGING THE ENGINE OIL
Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner
4.7 BATTERY MAINTENANCE
Figure 4.8 - Setting the Spark Plug Gap
4.6 SPARK PLUGS
Figure 4.10 - Valve Clearance Adjustment
4.8 ADJUSTING GH-410/GT-990 VALVE CLEARANCE
4.9 COOLING SYSTEM
Figure 4.9 - Cooling Vent Locations
4.12.1 REMOVAL FROM SERVICE
4.12 OUT OF SERVICE PROCEDURE
4.12.2 RETURN TO SERVICE
4.10 ATTENTION AFTER SUBMERSION
4.13 SERVICE SCHEDULE
ATTENTION It is recommended that all service work
be performed by the nearest Guardian Authorized Dealer
PROBLEM
5.1 TROUBLESHOOTING GUIDE
CAUSE
CORRECTION
24 Generac Power Systems, Inc
ENGINE WIRING
Section 6 - Electrical Data
Section 6 - Electrical Data
Generac Power Systems, Inc
CONTROL PANEL BOX
CUSTOMER
26 Generac Power Systems, Inc
Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B
Section 6 - Electrical Data
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Generac Power Systems, Inc
Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B
Section 6 - Electrical Data
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
28 Generac Power Systems, Inc
ENGINE WIRING
Section 6 - Electrical Data
Section 6 - Electrical Data
Generac Power Systems, Inc
CONTROL PANEL BOX
CUSTOMER
30 Generac Power Systems, Inc
Electrical Schematic - 7 kW - Drawing No. 0D9014-C
Section 6 - Electrical Data
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Generac Power Systems, Inc
Electrical Schematic - 7 kW - Drawing No. 0D9014-C
Section 6 - Electrical Data
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Section 7 - Exploded Views and Parts Lists
32 Generac Power Systems, Inc
9115
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
DESCRIPTION
34 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Control Panel - Drawing No. 0E7974-B
HARNESS, CONTROL PANEL WIRE NOT
Section 7 - Exploded Views and Parts Lists
ASSEMBLY, BATTERY CHARGER ENGINE
ASSEMBLY, ROOF/DOOR GROUND WIRE
36 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
12 kW and 15 kW GTS Load Center Assembly - Drawing No. 0E7973-B
Section 7 - Exploded Views and Parts Lists
38 Generac Power Systems, Inc
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
40 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
5, 19, 20, 39, 40
32, 33, 34
ASSEMBLY, DIPSTICK WITH HANDLE
Section 7 - Exploded Views and Parts Lists
ASSEMBLY, HOUSING COVER WITH
ASSEMBLY, CRANKCASE HOUSING WITH
42 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
DESCRIPTION
44 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
7 kW Generator - Drawing No. 0D3504-C
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
1.8 FT
1.25 FT
46 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
12 kW and 15 kW Generator - Drawing No. 0D3417-H
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
2.6 FT
3 FT
48 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
50 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
PART NO. QTY
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
PART NO. QTY
Generac Power Systems, Inc
Section 8 - Mounting Dimensions
ALL DIMENSIONS IN MILLIMETERS INCHES
cooled 7 kW, 12 kW and 15 kW Generators Drawing No. 0D3739-B
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
54 Generac Power Systems, Inc
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Generac Power Systems, Inc
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE
YOUR WARRANTY RIGHTS AND OBLIGATIONS
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
EMISSION CONTROL SYSTEM WARRANTY
EMISSION RELATED PARTS INCLUDE THE FOLLOWING
Section 10 - Warranty
“PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS”
GENERAC POWER SYSTEMS “TWO YEAR” LIMITED WARRANTY FOR GUARDIAN
Section 10 - Warranty
WARRANTY SCHEDULE