Generac 00941-3 owner manual 1.1PURPOSE AND SCOPE OF THE MANUAL, 1.2SAFETY, 1.3STANDARDS BOOKLETS

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1.1PURPOSE AND SCOPE

Section 1 – General Information

IMPACT-36 plus II Recreational Vehicle Generator

1.1PURPOSE AND SCOPE

OF THE MANUAL

These Installation Instructions have been prepared especially for the purpose of familiarizing installers and owners of the applicable equipment with the product's installation requirements. Give serious consideration to all information and instructions in the manual, both for safety and for continued reliable operation of the equipment.

Because of the different recreational vehicle models and the variations between the models, it would be extremely difficult, if not impractical, to provide detailed instructions for every possible installation. For that reason, instructions and illustrations in this manual are general in nature. Illustrations are not intended to serve as detailed installation blueprints.

The installation should comply strictly with all applicable codes, standards, and regulations pertain- ing to the installation and use of this product. If any portion of this manual appears to be in conflict with such codes, standards, or regulations, the applicable codes, standards, or regulations must take prece- dence over the manual.

1.2SAFETY

Before handling, installing, operating, or servicing this equipment, carefully read the “Notice to Installer” and “Safety Rules” on Pages 18 and 19. Comply with all safety rules to prevent death, per- sonal injury, or damage to equipment and/or proper- ty. Stress safety to all installers, operators, and ser- vice technicians who work on this equipment.

1.3STANDARDS BOOKLETS

Installation, use, and servicing of this equipment should comply strictly with published standards, as well as the manufacturer's recommendations. The following standards booklets (latest revision) are available from the sources indicated:

1.NFPA 1192, “Standard for Recreational Vehicles” (replaces ANSI A119.2/NFPA 501C), available from the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

2.NFPA 70, “NFPA Handbook of the National Electric Code,” available same as Item 1.

3.ANSI/RVIA EGS-1, “Engine Generator Sets for Recreational Vehicle Safety Requirements”, ava- ialable from the Recreational Vehicle Industry Association, 1896 Preston White Drive, Reston, VA 22090.

4.California Administrative Code, Title 25, avail- able from the State of California, Documents Section, P.O. Box 1015, North Highlands, CA 95660.

5.CSA Electrical Bulletin 946, available from the Canadian Standards Association, Housing and Constructions Materials Section, 178 Rexdale Boulevard, Rexdale, Ontario, Canada, M9W 1R3.

1.4EQUIPMENT DESCRIPTION

Instructions and information in this section pertain to Generac Impact air-cooled generators — more specifically, the installation of Impact-34 plus II and IMPACT-36 plus II Recreational Vehicle Generators. These generators are designed specifically for installing in recreational vehicles.

1.5ENGINE GENERATOR OPERATING

SPEED

The generators are driven by gasoline-powered, sin- gle-cylinder engines. The engines drive revolving fields (rotors), high frequency, permanent magnet alternators. The generators supply 120 volts AC at 60 Hertz with DC inverter. The generators revolving fields are driven at a variable speed depending on the demand for power. Computers monitor that demand and adjust the engine speed to provide adequate power to the connected loads.

18 Generac® Power Systems, Inc.

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Contents Model No 00941-3 IMPACT-36plus II with Inverter This manual should remain with the unitAir-cooledRecreational Vehicle Generator AUTHORIZED SERVICE DEALER LOCATION CONTENTSOPERATION AND MAINTENANCE HOW TO OBTAIN SERVICEIMPACT-36plus II Recreational Vehicle Generator Table of ContentsPart II - Installation Instructions GENERAL HAZARDS EXPLOSION HAZARDS ELECTRICAL HAZARDSFIRE HAZARDS 1.1.1 IMPACT-36LPGPLUS II FEATURES 1.1GENERATOR IDENTIFICATION2 11 3 12 4 16 REFERENCE NUMBER IDENTIFICATION1.1.2 INVERTER FEATURES PART NO. 0D4885 1.3SAFETY 1.4.2 START/STOP SWITCH1.2GENERATOR APPLICABILITY 1.4GENERATOR CONTROL PANEL1.5ENGINE PROTECTIVE DEVICES 2.1BEFORE STARTING THE ENGINE2.2STARTING THE GENERATOR 2.3STOPPING THE GENERATOR2.1.4 COOLING AND VENTILATING AIR 2.1.5 ENGINE EXHAUST GAS2.7OPERATING PRECAUTIONS 2.10 LP GENERATOR SPECIFICATIONS2.11 ENGINE SPECIFICATIONS 2.5ATTENTION REQUIRED AFTER SUBMERSION3.1MAINTENANCE 3.2CHECKING ENGINE OIL LEVEL3.3CHANGE ENGINE OIL 3.4CHANGE OIL FILTER3.5ENGINE AIR CLEANER 3.6CLEAN AIR INTAKE SCREEN3.9 CLEANING THE GENERATOR 3.7ENGINE SPARK PLUG3.11 SERVICE AND ADJUSTMENTS 3.10 BATTERY3.12 ADJUSTING THE CARBURETOR 3.13 ADJUSTING VALVE CLEARANCE3.16 OUT OF SERVICE PROTECTION 3.17 RETURN UNIT TO SERVICE AFTER STORAGE3.15 EXERCISING THE GENERATOR Figure 3.9 - Tightening Jam Nut14 Generac Power Systems, Inc INSTALLATION INSTRUCTIONS SHOULD ATTEMPT INSTALLATIONPART ONLY QUALIFIED ELECTRICIANS OR CONTRACTORSNOTICE TO INSTALLER FIRE HAZARDS 1.2SAFETY 1.1PURPOSE AND SCOPE OF THE MANUAL1.3STANDARDS BOOKLETS 1.4EQUIPMENT DESCRIPTION2.1LOCATION AND SUPPORT 2.1.1 GENERATOR LOCATION2.1.2 GENERATOR SUPPORT 2.1.3 SUSPENDED MOUNTING2.2GENERATOR COMPARTMENTS 2.1.4 GENERATOR RESTRAINTFigure 2.3 - Typical Generator Restraint Figure 2.4 - Types of Lock Seams2.2.1 COMPARTMENT SIZE 2.2.2 COMPARTMENT CONSTRUCTIONFigure 2.5 - Provide Clearance Around Generator Figure 2.6 - Typical Compartment ConstructionFigure 2.7 - Compartment Floor Cutout 0A6203-A 2.2.3 SOUND INSULATING MATERIALS2.2.4 COMPARTMENT FLOOR CUTOUTS 2.3COOLING AND VENTILATING AIR 2.2.5 ACOUSTICS2.3.1 GENERATOR AIR FLOW Figure 2.8 - Typical Noise Abatement Compartment2.3.2 COOLING AIR INLET OPENINGS Figure 2.12 - Air Inlet Using DuctworkFigure 2.11 - Suspended Mount Inlet Door Figure 2.10 - Air Inlet in Compartment Door2.3.5 TESTING THE INSTALLATION 2.4PROPANE GAS FUEL SYSTEM2.3.3 COMPENSATING FOR RESTRICTIONS 2.4.1 PARTS NOT INCLUDED IN FUEL SYSTEM2.4.2 SOME IMPORTANT CONSIDERATIONS 2.4.3 VAPOR WITHDRAWAL2.4.4 PRIMARY REGULATOR 2.4.5 GASEOUS CARBURETION2.5EXHAUST SYSTEM 2.4.6 FUEL SUPPLY LINES2.4.7 EXCESS FLOW VALVE 2.4.8 LEAKAGE TESTS2.5.3 EXHAUST SYSTEM SAFETY 2.6ELECTRICAL CONNECTIONS2.5.2 TYPE OF EXHAUST SYSTEM Figure 2.17 - Exhaust System2.6.1 WIRING 2.6.3 ISOLATING DIFFERENT POWER SOURCES2.6.4 POWER SUPPLY CORD 2.6.2 GENERATOR AC CONNECTION SYSTEMFigure 2.20 - Transfer Switch Isolation Method INVERTER POWER SUPPLY CORD POWER CORD FORDOCKSIDE POWER 30 Generac Power Systems, Inc2.7BATTERY INSTALLATION 2.7.1 RECOMMENDED BATTERY2.7.2 BATTERY CABLES 2.6.6 SENSING HARNESS2.8OPTIONAL ACCESSORIES 2.7.3 BATTERY CABLE CONNECTIONS2.7.4 BATTERY COMPARTMENT 2.8.1 REMOTE PLUG-INRECEPTACLE3.1POST INSTALLATION TESTS 3.4TESTING UNDER LOAD3.2BEFORE INITIAL START UP 3.3INITIAL START3.5INSTALLATION CHECKLIST BATTERY INSTALLATIONOPTIONAL ACCESSORIES POST INSTALLATION TESTS4.1TROUBLESHOOTING GUIDE PROBLEMCAUSE CORRECTION36 Generac Power Systems, Inc Section 6 - Electrical Data 38 Generac Power Systems, Inc Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 40 Generac Power Systems, IncDESCRIPTION Control Panel - Drawing No. 0E756042 Generac Power Systems, Inc DESCRIPTION 44 Generac Power Systems, Inc GN 220 RV Long Block - Drawing No. 0A6202-G078621 46 Generac Power Systems, Inc DESCRIPTION YOUR WARRANTY RIGHTS AND OBLIGATIONS PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIESSection 8 - Warranty ATTENTION WARRANTY DEPARTMENTEMISSION CONTROL SYSTEM WARRANTY EMISSION RELATED PARTS INCLUDE THE FOLLOWINGGENERAC POWER SYSTEMS’ THREE-YEARLIMITED WARRANTY WARRANTY SCHEDULE - COMMERCIAL APPLICATIONSGENERAC POWER SYSTEMS, INC FOR GUARDIAN RECREATIONAL VEHICLE GENERATORS