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Generac Power Systems 004992-0, 004992-1 Electrical Data, Guardian 40kW Liquid-cooledGenerators

Models: 004992-0, 004992-1 004992-1, 004992-0 004992-0, 004992-1, 37kW NG, 40kW LP

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Section 6 - Electrical Data

Guardian 40kW Liquid-cooled Generators

Electrical Schematic — Engine — Drawing No. 0E8116-A

26 Generac® Power Systems, Inc.

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Generac Power Systems 004992-0, 004992-1, 004992-1, 004992-0 Electrical Data, Guardian 40kW Liquid-cooledGenerators

Contents

Model Nos. 004992-137kW NG, 40kW LPSHOULD ATTEMPT INSTALLATION Owner’s ManualAUTHORIZED SERVICE DEALER LOCATION ‹OPERATION AND MAINTENANCE‹HOW TO OBTAIN SERVICE INTRODUCTIONTable of Contents INTRODUCTIONGENERAL HAZARDS DANGERFIRE HAZARDS ELECTRICAL HAZARDSEXPLOSION HAZARDS 1.2TRANSFER SWITCH 1.1GENERATOR1.3AUTOMATIC SYSTEM OPERATION 1.4GENERATOR AC CONNECTION SYSTEMS‹1.7.1 LOW OIL PRESSURE SWITCH ‹1.7.2 HIGH COOLANT TEMPERATURE SWITCH‹1.7.3 LOW COOLANT LEVEL SWITCH Figure 1.4 - Low Oil Pressure Switch‹ 1.7.7 LOW BATTERY ‹1.7.8 ALARM RESET‹1.8.1 UNPACKING PRECAUTIONS Figure 1.7 - Printed Circuit Board Assembly1.10 SPECIFICATIONS 1.12 RECONFIGURING THE FUEL SYSTEM‹ 1.10.1 GENERATOR SPECIFICATIONS ‹1.10.2 ENGINE SPECIFICATIONS1.13 TORQUE SPECIFICATIONS 1.16 BEFORE INSTALLATION2.1STANDBY GENERATOR INSTALLATION 1.14 ENGINE OIL RECOMMENDATIONS2.2GENERATOR LOCATION 2.3GENERATOR MOUNTING AND SUPPORT2.4BASIC STANDBY ELECTRIC SYSTEM ‹2.1.1 NFPA STANDARDS2.5EMERGENCY CIRCUIT ISOLATION METHOD 2.6TOTAL CIRCUIT ISOLATION METHOD2.8GENERATOR AC NEUTRAL CONNECTIONS Figure 2.1 – Basic Standby Electric System2.9TRANSFER SWITCH SIGNAL CONNECTIONS 2.10BATTERY INSTALLATION‹2.9.1 PRE-PACKAGEDATS ‹2.9.2 GTS-TYPEATS‹2.11.2 TRANSFER SWITCH 2.11 PREPARATION BEFORE START-UP‹2.11.3 FUEL SYSTEM ‹2.11.4 GENERATOR SET LUBRICATION3.1USING AN ENGINEERED “GTS” TRANSFER SWITCH Pos2 OFF — ATS Application Included switchGTS Mode Operation ‹3.2.1 AUTO/OFF/MANUAL SWITCH3.4ENGINE GOVERNOR ADJUSTMENTS ‹3.2.5 SET EXERCISE TIME SWITCHFigure 3.2 — Engine Governor Adjustment DIP SWITCHFigure 3.2 - “Set Exercise Time” Switch 3.6AUTOMATIC OPERATION3.7WEEKLY EXERCISE CYCLE 3.5RETRANSFER AND SHUTDOWN‹4.4.2 BATTERY FLUID 4.3OVERLOAD PROTECTION FORENGINE DC ELECTRICAL SYSTEM 4.4CHECKING FLUID LEVELS4.5MAINTENANCE OWNER/ OPERATOR CAN PERFORM DANGER4.6MISCELLANEOUS MAINTENANCE ‹4.6.1 CLEANING THE GENERATOR‹4.5.11 CHANGING THE ENGINE AIR CLEANER ‹4.6.2 BATTERY‹4.6.4 BATTERY REPLACEMENT ‹4.6.3 BATTERY MAINTENANCEDANGER 4.7SCHEDULED MAINTENANCE Service Maintenance Interval Information•Turn off the battery charger •Remove the negative battery cableMaintenance LevelTasks LevelMaintenance LevelLevel LevelTROUBLESHOOTING POINTS PROBLEMCAUSE CORRECTIONSection 6 - Electrical Data Wiring Diagram — Engine — Drawing No. 0E8115-A24 Generac Power Systems, Inc Guardian 40kW Liquid-cooledGeneratorsGenerac Power Systems, Inc. Section 6 - Electrical DataSection 6 - Electrical Data 26 Generac Power Systems, IncGuardian 40kW Liquid-cooledGenerators Generac Power Systems, Inc. Section 6 - Electrical Data2 CARRIER REAR BEARING ITEM PART NODESCRIPTION Section 7 - Exploded Views and Parts30 32 ITEM PART NODESCRIPTION Section 7 - Exploded Views and Parts32 Generac Power Systems, Inc Section 7 - Exploded Views and PartsITEM PART NODESCRIPTION ITEM34 Generac Power Systems, Inc Section 7 - Exploded Views and PartsITEM PART NODESCRIPTION ITEM9 15 10 20 1 A ITEM PART NODESCRIPTION Section 7 - Exploded Views and PartsTO ENGINE ITEM PART NODESCRIPTION 033212Section 7 - Exploded Views and Parts Guardian 40kW Liquid-cooledGeneratorsAlternator — Drawing No. 0E5146-B LEADSITEM PART NODESCRIPTION 0E5093AITEM PART NODESCRIPTION ITEMSection 8 — Installation Diagram Installation Diagram — Drawing No. 0E8422-AGenerac Power Systems, Inc. Guardian 40kW Liquid-cooledGeneratorsSection 9 - Notes 44 Generac Power Systems, IncGuardian 40kW Liquid-cooledGenerators Section 9 - Notes Generac Power Systems, Inc.Guardian 40kW Liquid-cooledGenerators Section 10 – Warranty WARRANTY SCHEDULETHIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING GENERAC POWER SYSTEMS, INC