Generac Power Systems 004988-4 instruction

Owner’s Manual

Liquid-cooled, Prepackaged

Standby Generators

Model Number: 004988-4

27kW NG, 30kW LP Vapor

This manual should remain with the unit.

ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS

SHOULD ATTEMPT INSTALLATION!!

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Generac Power Systems 004988-4 owner manual Liquid-cooled, Prepackaged Standby Generators

Contents

Liquid-cooled, Prepackaged Standby Generators ‹ Operation and Maintenance Authorized Service Dealer Location‹ HOW to Obtain Service Introduction Table of Contents  Warning   Electrical Hazards  Generator Transfer SwitchAutomatic System Operation Generator AC Connection Systems ‹ 1.7.1 LOW OIL Pressure Switch ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.3 LOW Coolant Level Switch LOW OIL Presure Switch LOW Coolant Level Switch Lifting the Generator Unpacking Reconfiguring the Fuel System Specifications‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine Specifications Standby Generator Installation Torque SpecificationsBefore Installation Engine OIL Recommendations Basic Standby Electric System Generator Mounting Support‹ 2.1.2 Other Published Standards Emergency Circuit Isolation Method Transfer Switch Signal ConnectionsTotal Circuit Isolation Method Grounding the Generator Preparation Before START-UP Battery Installation‹ 2.9.2 GTS-TYPE ATS Using AN Engineered GTS Transfer Switch ‹ 3.2.2 Fault Indicator LED ‹ 3.2.1 AUTO/OFF/MANUAL Switch‹ 3.2.5 SET Exercise Time Switch Control Console Components Manual Transfer START-UP Engine Governor AdjustmentsRetransfer and Shutdown Automatic Operation Cooling System Weekly Exercise Cycle Checking Fluid Levels Overload Protection for Engine DC Electrical System ‹ 4.5.8 Check FAN Belt ‹ 4.5.11 Changing the Engine AIR Cleaner‹ 4.5.9 Inspect Engine Governor ‹ 4.5.10 Changing Engine OIL ‹ 4.6.3 Battery Maintenance Miscellaneous Maintenance‹ 4.6.1 Cleaning the Generator ‹ 4.5.13 Coolant Change ‹ Periodic Replacement Parts ‹ 4.6.4 Battery Replacement Service Maintenance Interval Information Scheduled Maintenance Level Maintenance Level Problem Cause Correction Troubleshooting Points Liquid-cooled 30 kW Generators Installation Diagram AUTO/OFF/MANUAL Switch Transfer SwitchSET Exerciser Switch Size AWG BAT Otherwise Noted AS ShownIgnition Coil On PCB SWITCH, SET Exerciser SWITCH, AUTO/OFF/MANUALDPE ALT 12V Battery REDDEG Starter Motor GOV Engine Foot Battery Post Cover Baclk Boot Battery CableBattery Post Cover RED + Hold Down Battery To a To B Plcs Intake Duct HSB Assy Wire 14AWG 7.5 #0 GRN/YELDuct Discharge RH Front Duct Discharge LH FrontPage Control BOX HSB Assy 2A 12V UL BatteryDecal AVR Cover Cover Front Panel HSB Cooled 30 kW Drawing No Exploded Not SHOWN-USED to Hold OIL Drain Assembly Wire SET 3.0L Ford notCoil Ignition 3.0L Ford Bracket DC ALT 3.0L Ford Frame Radiator R-IN,L-OUT Tank Coolant RecoveryVenturi 3.0L Ford HSB Side Support Radiator HSB To B Flange Fuel Inlet Weldment Mounting BaseAssy Regulator 3.0L NG or LPV Washer Flat 5/16 Zinc Locktight Rotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB Tecum Pipe Muffler OUT Exhaust Flange 2 PipeWasher Lock 3/8 SS Gasket Exhaust Ring Element AIR Cleaner Plate AIR Cleaner AdapterCover AIR Cleaner Adapter Carburetor W/PVC Conn Warranty Schedule