POWER SYSTEMS, INC
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY
DANGER
Air-cooled,Prepackaged
OPERATION AND MAINTENANCE
CONTENTS
HOW TO OBTAIN SERVICE
INTRODUCTION
Introduction
DANGER
GENERAL HAZARDS
FIRE HAZARDS
ELECTRICAL HAZARDS
EXPLOSION HAZARDS
STANDARDS INDEX
1.2PROTECTION SYSTEMS
1.1UNPACKING/INSPECTION
1.3SYSTEM SET LED
DANGER
Figure 1.2 - 12 kW and 15 kW, V-twin GT-990Engine
1.4YOUR GENERATOR
Figure 1.1 - 7 kW, Single Cylinder GH-410Engine
1.5.1 GENERATOR
1.5 SPECIFICATIONS
1.5.2 ENGINE
Section 1 - General Information
1.6FUEL REQUIREMENTS AND RECOMMENDATIONS
1.8RECONFIGURING THE FUEL SYSTEM
1.7FUEL CONSUMPTION
DANGER
1.9LOCATION
1.9.2 TRANSFER SWITCH
1.9.1 GENERATOR
1.9.2.1 7 kW, 12 kW and 15 kW Units
1.11 THE BATTERY
1.10 BATTERY INSTALLATION
Figure 1.5 - Battery Cable Connections
DANGER
2.1BEFORE INITIAL START-UP
2.2CHECK TRANSFER SWITCH OPERATION
2.3ELECTRICAL CHECKS
DANGER
2.5CHECKING AUTOMATIC OPERATION
2.4GENERATOR TESTS UNDER LOAD
2.7ENGINE GOVERNOR ADJUSTMENT
2.6ADJUSTING THE REGULATOR NATURAL GAS ONLY
Figure 2.2 - Placement of Regulator
2.7.1 7 KW UNITS
Figure 2.3 - Engine Governor Adjustment
2.8VOLTAGE REGULATOR ADJUSTMENT
Figure 2.4 - Full Load Speed Adjust Screw
Figure 2.5 - Voltage Adjustment Potentiometer
3.3AUTOMATIC TRANSFER OPERATION
3.1 BREAK-INPROCEDURE
3.2.3 “MANUAL” POSITION
3.2.1 “AUTO” POSITION
3.5.1 TRANSFER TO GENERATOR POWER SOURCE
Figure 3.2 - Manual Transfer Switch Operation
3.4SEQUENCE OF AUTOMATIC OPERATION
3.5MANUAL TRANSFER OPERATION
3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE
3.6SETTING THE EXERCISE TIMER
3.7.1 LOW OIL PRESSURE SWITCH
3.7.2 HIGH TEMPERATURE SWITCH
4.2 CHECKING THE ENGINE OIL LEVEL
4.1 FUSE
3.7.3.1 Approximate Crank Cycle Times
3.7.4 OVERSPEED
4.3.2 OIL CHANGE PROCEDURE
4.5CHANGING THE ENGINE AIR CLEANER
Figure 4.6 - 7 kW, Engine Air Cleaner Location
4.3CHANGING THE ENGINE OIL
Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner
4.7BATTERY MAINTENANCE
Figure 4.8 - Setting the Spark Plug Gap
4.6SPARK PLUGS
Figure 4.10 - Valve Clearance Adjustment
4.8ADJUSTING GH-410/GT-990VALVE CLEARANCE
4.9COOLING 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
PROBLEM
5.1TROUBLESHOOTING GUIDE
CAUSE
CORRECTION
ENGINE WIRING
24 Generac Power Systems, Inc
Section 6 - Electrical Data
IC IM2
Section 6 - Electrical Data
Generac Power Systems, Inc
CONTROL PANEL BOX
CUSTOMER
Section 6 - Electrical Data
26 Generac Power Systems, Inc
C2-6
Section 6 - Electrical Data
Section 6 - Electrical Data
28 Generac Power Systems, Inc
ENGINE WIRING
Section 6 - Electrical Data
Generac Power Systems, Inc
CONTROL PANEL BOX
CUSTOMER
Section 6 - Electrical Data
30 Generac Power Systems, Inc
11 TX 225A N256VA 224A 1VA 224 N1
Generac Power Systems, Inc
Section 6 - Electrical Data
32 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
ITEM
Section 7 - Exploded Views and Parts Lists
PART NO.QTY. DESCRIPTION
PART NO.QTY. DESCRIPTION
Page
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
23 26
Section 7 - Exploded Views and Parts Lists
7 9
0D4801
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
8 35 34
Section 7 - Exploded Views and Parts Lists
37 17 24 10 1
0D3086
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
Kit Contains
DESCRIPTION
Section 7 - Exploded Views and Parts Lists
ITEM
PART NO
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
0C6934
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
12 kW and 15 kW Generator - Drawing No. 0D3417-D
46 Generac Power Systems, Inc
0C6934
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
GN410 Engine - Drawing No. 0D3539-DPart
48 Generac Power Systems, Inc
071978
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
50 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts Lists
11 9
4 2 27
0C1069
Section 7 - Exploded Views and Parts Lists
DESCRIPTION
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
Guardian Air
54 Generac Power Systems, Inc
Generac Power Systems, Inc
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES
YOUR WARRANTY RIGHTS AND OBLIGATIONS
1-800-333-1322
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
Section 10 - Warranty
EMISSION CONTROL SYSTEM WARRANTY
EMISSION RELATED PARTS INCLUDE THE FOLLOWING
Section 10 - Warranty
WARRANTY SCHEDULE
GENERAC POWER SYSTEMS, INC
GUARDIAN “EMERGENCY AUTOMATIC STANDBY GENERATORS”