Generac Power Systems 04389-2, 04456-2, 04390-2 owner manual Installation

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Installation and

Owner’s Manual

Air-cooled, Prepackaged

Automatic Standby Generators

Models:

04389-2 (6 kW NG, 7 kW LP)

04456-2 (12 kW NG, 12 kW LP)

04390-2 (13 kW NG, 15 kW LP)

GENERAC R

POWER SYSTEMS,

*This manual should remain with the unit.

!	Not intended for use as Primary Power in place of utility or	!
	in life-support applications.

DANGER

DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!

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Contents Installation Authorized Dealer Location IntroductionMaintenance Post Installation Start-up AdjustmentsTroubleshooting Introduction Inside Front CoverGeneral Hazards ‹ Standards Index Electrical HazardsProtection Systems UNPACKING/INSPECTIONBreaker for Bedrooms 7 kW, Single Cylinder GH-410 Engine Generator‹ 1.5.1 Generator Specifications‹ 1.5.2 Engine System SET LED Reconfiguring the Fuel SystemFuel Requirements Recommendations Fuel ConsumptionLocation Transfer Switch2 12KW and 15KW, 990CC Engines GeneratorBattery Battery InstallationBefore Initial START-UP Check Transfer Switch OperationElectrical Checks Checking Automatic Operation Generator Tests Under LoadAdjustment Screw Adjusting the Regulator Natural GAS onlyVoltage Regulator Adjustment Engine Governor Adjustment1 7 KW Units 2 12 KW and 15 KW UnitsAutomatic Transfer Operation BREAK-IN Procedure‹ 3.2.1 Auto Position ‹ 3.2.2 OFF PositionSequence of Automatic Operation Manual Transfer Operation‹ 3.5.2 Transfer Back to Utility Power Source Setting the Exercise Timer‹ 3.7.1 LOW OIL Pressure Switch ‹ 3.7.2 High Temperature SwitchApproximate Crank Cycle Times Checking the Engine OIL Level‹ 3.7.4 Overspeed Changing the Engine OIL ‹ 4.3.2 OIL Change ProcedureChanging the OIL Filter ‹ 4.3.1 Engine OIL RecommendationsSpark Plugs Battery MaintenanceCooling System Adjusting GH-410/GT-990 Valve Clearance‹ 4.12.1 Removal from Service OUT of Service Procedure‹ 4.12.2 Return to Service Corrosion ProtectionBe performed by the nearest Guardian Authorized Dealer Service ScheduleProblem Cause Correction Troubleshooting GuideElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR SW1 Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists Circuit Breaker 40A X 2P Exploded Views and Parts Lists BOX GTS Load Center Exploded Views and Parts Lists COVER, 12 Position GTS Load Center 140 Sleeve Exploded Views and Parts Lists KNOB, AIR Cleaner 28 31 ADAPTOR, Engine Exploded Views and Parts Lists Stator 12KW Exploded Views and Parts Lists PIN, Piston D20 Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome Engine only Mounting Dimensions Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators MANUFACTURER’S Emission Control System Warranty Coverage Your Warranty Rights and ObligationsPURCHASER’S/OWNER’S Warranty Responsibilities Emission Related Parts Include the Following Emission Control System WarrantyWarranty Schedule