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