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Generac Power Systems 04456-1, 04390-1 owner manual Danger, Air-cooled,Prepackaged, Generac R

Models: 04389-1 04456-1 04390-1

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Installation and

Owner’s Manual

Air-cooled, Prepackaged

Automatic Standby Generators

Models:

04389-1 (6 kW NG, 7 kW LP)

04456-1 (12 kW NG, 12 kW LP)04390-1 (13 kW NG, 15 kW LP)GENERAC RPOWER SYSTEMS, INC.

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

DANGER

DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!

Page 1

Image 1

Generac Power Systems 04456-1 owner manual Danger, Air-cooled,Prepackaged, Automatic Standby Generators, Generac R

Contents

POWER SYSTEMS, INC DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLYDANGER Air-cooled,Prepackaged‹OPERATION AND MAINTENANCE ‹CONTENTS‹HOW TO OBTAIN SERVICE INTRODUCTIONIntroduction DANGER GENERAL HAZARDSFIRE HAZARDS ELECTRICAL HAZARDSEXPLOSION HAZARDS ‹STANDARDS INDEX1.2PROTECTION SYSTEMS 1.1UNPACKING/INSPECTION1.3SYSTEM SET LED DANGERFigure 1.1 - 7 kW, Single Cylinder GH-410Engine 1.4YOUR GENERATORFigure 1.2 - 12 kW and 15 kW, V-twin GT-990Engine ‹ 1.5.1 GENERATOR 1.5 SPECIFICATIONS‹1.5.2 ENGINE Section 1 - General Information1.6FUEL REQUIREMENTS AND RECOMMENDATIONS 1.8RECONFIGURING THE FUEL SYSTEM1.7FUEL CONSUMPTION DANGER1.9LOCATION 1.9.2 TRANSFER SWITCH1.9.1 GENERATOR 1.9.2.1 7 kW, 12 kW and 15 kW Units1.11 THE BATTERY 1.10 BATTERY INSTALLATIONFigure 1.5 - Battery Cable Connections DANGER2.1BEFORE INITIAL START-UP 2.2CHECK TRANSFER SWITCH OPERATION2.3ELECTRICAL CHECKS DANGER2.5CHECKING AUTOMATIC OPERATION 2.4GENERATOR TESTS UNDER LOAD2.7ENGINE GOVERNOR ADJUSTMENT 2.6ADJUSTING THE REGULATOR NATURAL GAS ONLYFigure 2.2 - Placement of Regulator 2.7.1 7 KW UNITSFigure 2.3 - Engine Governor Adjustment 2.8VOLTAGE REGULATOR ADJUSTMENTFigure 2.4 - Full Load Speed Adjust Screw Figure 2.5 - Voltage Adjustment Potentiometer3.3AUTOMATIC 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 Operation3.4SEQUENCE 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 SWITCH4.2 CHECKING THE ENGINE OIL LEVEL 4.1 FUSE3.7.3.1 Approximate Crank Cycle Times ‹3.7.4 OVERSPEED‹4.3.2 OIL CHANGE PROCEDURE 4.5CHANGING THE ENGINE AIR CLEANERFigure 4.6 - 7 kW, Engine Air Cleaner Location 4.3CHANGING THE ENGINE OILFigure 4.7 - 12 kW and 15 kW Engine Air Cleaner 4.7BATTERY MAINTENANCEFigure 4.8 - Setting the Spark Plug Gap 4.6SPARK PLUGSFigure 4.10 - Valve Clearance Adjustment 4.8ADJUSTING GH-410/GT-990VALVE CLEARANCE4.9COOLING 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 SUBMERSION4.13 SERVICE SCHEDULE PROBLEM 5.1TROUBLESHOOTING GUIDECAUSE CORRECTIONENGINE WIRING 24 Generac Power Systems, IncSection 6 - Electrical Data IC IM2Section 6 - Electrical Data Generac Power Systems, IncCONTROL PANEL BOX CUSTOMERSection 6 - Electrical Data 26 Generac Power Systems, IncC2-6 Section 6 - Electrical DataENGINE WIRING 28 Generac Power Systems, IncSection 6 - Electrical Data Section 6 - Electrical Data Generac Power Systems, IncCONTROL PANEL BOX CUSTOMERSection 6 - Electrical Data 30 Generac Power Systems, IncSection 6 - Electrical Data Generac Power Systems, Inc11 TX 225A N256VA 224A 1VA 224 N1 32 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsITEM Section 7 - Exploded Views and Parts ListsPART NO.QTY. DESCRIPTION PART NO.QTY. DESCRIPTIONPage DESCRIPTION Section 7 - Exploded Views and Parts ListsDESCRIPTION 7 9 Section 7 - Exploded Views and Parts Lists23 26 DESCRIPTION Section 7 - Exploded Views and Parts Lists0D4801 37 17 24 10 1 Section 7 - Exploded Views and Parts Lists8 35 34 DESCRIPTION Section 7 - Exploded Views and Parts Lists0D3086 Kit Contains DESCRIPTION Section 7 - Exploded Views and Parts ListsITEM PART NO42 Generac Power Systems, Inc DESCRIPTION Section 7 - Exploded Views and Parts ListsDESCRIPTION 44 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists7 kW Generator - Drawing No. 0D3504-C DESCRIPTION Section 7 - Exploded Views and Parts Lists0C6934 12 kW and 15 kW Generator - Drawing No. 0D3417-D 46 Generac Power Systems, IncDESCRIPTION Section 7 - Exploded Views and Parts Lists0C6934 GN410 Engine - Drawing No. 0D3539-DPart 48 Generac Power Systems, IncDESCRIPTION Section 7 - Exploded Views and Parts Lists071978 50 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists11 9 4 2 27DESCRIPTION Section 7 - Exploded Views and Parts Lists0C1069 PART NO. QTY Section 7 - Exploded Views and Parts ListsDESCRIPTION PART NO. QTYGenerac Power Systems, Inc Section 8 - Mounting DimensionsALL DIMENSIONS IN MILLIMETERS INCHES Guardian Air54 Generac Power Systems, Inc Generac Power Systems, Inc PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES YOUR WARRANTY RIGHTS AND OBLIGATIONS1-800-333-1322 CALIFORNIA EMISSION CONTROL WARRANTY STATEMENTEMISSION RELATED PARTS INCLUDE THE FOLLOWING EMISSION CONTROL SYSTEM WARRANTYSection 10 - Warranty Section 10 - Warranty WARRANTY SCHEDULEGENERAC POWER SYSTEMS, INC GUARDIAN “EMERGENCY AUTOMATIC STANDBY GENERATORS”

Installation and

Air-cooled, Prepackaged

Automatic Standby Generators

life-support applications.

DANGER

DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!