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Generac Power Systems 04389-3, 04456-3, 04390-3 owner manual The Generator, General Information

Models: 04389-3, 04456-3, 04390-3

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Section 1 — General Information

Air-cooled 7 kW, 12 kW and 15 kW Generators

1.4THE GENERATOR

Figure 1.1 – 7 kW, Single Cylinder GH-410 Engine

Oil Data

Dipstick Decal

Exhaust

Enclosure

Control

Panel

GFCI

Outlet

Fuel

Regulator

Fuel

Inlet

	Oil Filter	Battery
	Oil Filter	Compartment
		Compartment

Figure 1.2 – 12 kW and 15 kW, V-twin GT-990/760 Engine

Exhaust Enclosure

		Control
Oil	Data	Panel
Oil	Data
Dipstick	Decal
		GFCI
		Outlet
		Fuel
		Regulator
		Fuel
		Inlet
Oil Filter	Battery	Composite Base
Oil Filter	Compartment
	Compartment

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Generac Power Systems 04389-3, 04456-3, 04390-3 owner manual The Generator, 1 - 7 kW, Single Cylinder GH-410 Engine

Contents

DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY Not intended for use as Primary Power in place of utility or inlife-support applications Installation and Owner’s ManualINTRODUCTION ‹ CONTENTS‹ OPERATION AND MAINTENANCE ‹ HOW TO OBTAIN SERVICESection 5 - Troubleshooting Section 2 - Post Installation Start-upand Adjustments Section 4 - MaintenanceDANGER  GENERAL HAZARDS IMPORTANT SAFETY INSTRUCTIONS  WARNING ‹ STANDARDS INDEX  ELECTRICAL HAZARDS  FIRE HAZARDS   EXPLOSION HAZARDS BREAKER FOR BEDROOMS ‹ 1.3.1 SECTION 210.12 ARC FAULT CIRCUIT INTERRUPTER PROTECTION1.1 UNPACKING/INSPECTION 1.2 PROTECTION SYSTEMSSection 1 - General Information 1.4 THE GENERATORFigure 1.1 - 7 kW, Single Cylinder GH-410 Engine Figure 1.2 - 12 kW and 15 kW, V-twin GT-990/760 EngineSection 1 - General Information 1.5 SPECIFICATIONS‹ 1.5.1 GENERATOR ‹ 1.5.2 ENGINE1.8 FUEL CONSUMPTION 1.9 RECONFIGURING THE FUEL SYSTEM1.6 SYSTEM SET LED 1.7 FUEL REQUIREMENTS AND RECOMMENDATIONSFigure 1.4 - Demand Regulator 1.10 LOCATION‹ 1.9.2 12KW AND 15KW, V-TWIN ENGINES ‹ 1.10.1 GENERATORFigure 1.5 - Battery Cable Connections 1.11 BATTERY INSTALLATION1.12 THE BATTERY ‹ 1.10.2 TRANSFER SWITCH 1.10.2.1 7 kW, 12 kW and 15 kW UnitsSection 2 - Post Installation Start-up and Adjustments 2.2 CHECK TRANSFER SWITCH OPERATION2.1 BEFORE INITIAL START-UP 2.3 ELECTRICAL CHECKSDANGER 2.4 GENERATOR TESTS UNDER LOAD2.5 CHECKING AUTOMATIC OPERATION Section 2 - Post Installation Start-up and AdjustmentsSection 2 - Post Installation Start-up and Adjustments 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLYFigure 2.2 - Placement of Regulator Figure 2.1 - Dual Fuel RegulatorsFigure 2.5 - Full Load Speed Adjust Screw V-twin Engines 2.7 ENGINE GOVERNOR ADJUSTMENTFigure 2.3 - Engine Governor Adjustment Single Cylinder Engines Figure 2.4 - Engine Governor Adjustment V-twin Engines‹ 3.2.1 “AUTO” POSITION 2.8 VOLTAGE REGULATOR ADJUSTMENT3.1 BREAK-IN PROCEDURE Figure 2.6 - Voltage Adjustment Potentiometer‹ 3.2.2 “OFF” POSITION ‹ 3.3.1 12 VDC ACCESSORY OUTLET3.3 AUTOMATIC TRANSFER OPERATION 3.4 SEQUENCE OF AUTOMATIC OPERATION3.5 MANUAL TRANSFER OPERATION ‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCEFigure 3.2 - Manual Transfer Switch Operation ‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCEFigure 3.3 - Low Oil Pressure and High Temperature Switches 3.6 SETTING THE EXERCISE TIMER‹ 3.7.2 HIGH TEMPERATURE SWITCH ‹ 3.7.1 LOW OIL PRESSURE SWITCH‹ 3.7.4 OVERSPEED 4.1 FUSES4.2 CHECKING THE ENGINE OIL LEVEL Oil Dipstick and FillAir Cleaner 4.5 CHANGING THE ENGINE AIR CLEANER‹ 4.3.2 OIL CHANGE PROCEDURE Figure 4.6 - 7 kW, Engine Air Cleaner Location4.6 SPARK PLUGS 4.7 BATTERY MAINTENANCEFigure 4.7 - 12 kW and 15 kW Engine Air Cleaner Figure 4.8 - Setting the Spark Plug GapFigure 4.9 - Cooling Vent Locations 4.8 ADJUSTING GH-410/GT-990/760 VALVE CLEARANCEFigure 4.10 - Valve Clearance Adjustment 4.9 COOLING SYSTEM4.10 ATTENTION AFTER SUBMERSION 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.1 REMOVAL FROM SERVICE ‹ 4.12.2 RETURN TO SERVICEbe performed by the nearest Authorized Dealer 4.13 SERVICE SCHEDULEATTENTION It is recommended that all service work Section 4 - MaintenanceCorrection 5.1 TROUBLESHOOTING GUIDEProblem CauseAir-cooled 7 kW, 12 kW and 15 kW Generators Section 6 - NotesAir-cooled 7 kW, 12 kW and 15 kW Generators Section 6 - NotesAir-cooled 7 kW, 12 kW and 15 kW Generators Section 6 - NotesSection 7 - Electrical Data CUSTOMER CONNECTION Wiring Diagram - V-Twin - Drawing No. 0E9016Section 7 - Electrical Data Air-cooled 7 kW, 12 kW and 15 kW GeneratorsSection 7 - Electrical Data BATTERYSection 7 - Electrical Data SW1 - AUTO / OFF / MANUAL SWITCH SW2 - SET EXERCISE SWITCH Wiring Diagram - Single Cylinder - Drawing No. 0E9014ENGINE WIRING LOP - LOW OIL PRESSURE SWITCH SC - STARTER CONTACTORSection 7 - Electrical Data Wiring Diagram - Single Cylinder - Drawing No. 0E9014Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Electrical Data Electrical Schematic - Single Cylinder - Drawing No. 0E9015Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Electrical Data Section 7 - Electrical Data Wiring Diagram - 8 Circuit Load Center - Drawing No. 0E7687AAir-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Electrical Data Section 7 - Electrical Data Wiring Diagram - 12 Circuit Load Center - Drawing No. 0E7687$Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Electrical Data Section 7 - Electrical Data Electrical Schematic - 8 Circuit Load Center - Drawing No. 0E7815ATS-TERMINAL STRIP XA,XB-LIMIT SWITCHES ATS-AUTOMATIC TRANSFER SWITCHSection 7 - Electrical Data PRE PACKAGED UNITS ONLY Section 8 - Exploded Views and Parts ListsAir-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTIONSection 8 - Exploded Views and Parts Lists PART NO. QTY Section 8 - Exploded Views and Parts ListsPART NO. QTY DESCRIPTION7 kW, 8 Circuit Load Center Assembly - Drawing No. 0E7975-B Section 8 - Exploded Views and Parts ListsAir-cooled 7 kW, 12 kW and 15 kW Generators Air-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts Lists7 kW, 8 Circuit Load Center Assembly - Drawing No. 0E7975-B DESCRIPTIONAir-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts ListsDESCRIPTION Section 8 - Exploded Views and Parts ListsAir-cooled 7 kW, 12 kW and 15 kW Generators Engine Views and Parts ListsGT-990/760 Air-cooledAir-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTIONSection 8 - Exploded Views and Parts Lists Air-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION PART NO. QTY. DESCRIPTIONAir-cooled 7 kW, 12 kW and 15 kW Generators Section 8 - Exploded Views and Parts Lists7 kW Generator - Drawing No. 0D3504-E 7 kW Generator - Drawing No. 0D3504-E Section 8 - Exploded Views and Parts ListsDESCRIPTION Air-cooled 7 kW, 12 kW and 15 kW Generators12 kW and 15 kW Generator - Drawing No. 0D3417-L Section 8 - Exploded Views and Parts Lists32 31 Air-cooled 7 kW, 12 kW and 15 kW Generators12 kW and 15 kW Generator - Drawing No. 0D3417-L Section 8 - Exploded Views and Parts ListsDESCRIPTION Air-cooled 7 kW, 12 kW and 15 kW GeneratorsSection 8 - Exploded Views and Parts Lists GN410 Engine - Drawing No. 0F3981-A Part Section 8 - Exploded Views and Parts ListsDESCRIPTION Air-cooled 7 kW, 12 kW and 15 kW GeneratorsSection 8 - Exploded Views and Parts Lists GN410 Engine - Drawing No. 0F3981-A Part Section 8 - Exploded Views and Parts ListsDESCRIPTION Air-cooled 7 kW, 12 kW and 15 kW GeneratorsDESCRIPTION PART NO. QTYDESCRIPTION PART NO. QTYAir-cooled 7 kW, 12 kW and 15 kW Generators Drawing No. 0D3739-C Section 9 - Mounting DimensionsALL DIMENSIONS IN MILLIMETERS INCHES TRANSFER SWITCH IF SUPPLIEDCALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIESAir-cooled 7 kW, 12 kW and 15 kW Generators EMISSION CONTROL SYSTEM WARRANTYEMISSION RELATED PARTS INCLUDE THE FOLLOWING Section 10 - WarrantyPREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIANWARRANTY SCHEDULE THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING