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Generac Power Systems 00941-3 Owners And Installation Manual

Air-cooled recreational vehicle generator with inverter.
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Owner's Manual and
Installation Instructions
Air-cooled Recreational Vehicle Generator
• Model No: 00941-3
IMPACT-36 plus II with Inverter
This manual should remain with the unit.

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   Summary of Contents for Generac Power Systems 00941-3

  • Page 1: Installation Instructions

    Owner’s Manual and Installation Instructions Air-cooled Recreational Vehicle Generator • Model No: 00941-3 IMPACT-36 plus II with Inverter This manual should remain with the unit.

  • Page 2: Introduction

    INTRODUCTION Thank you for purchasing this generator by Generac Power Systems, Inc. This model is designed and man- ufactured to supply electrical power for recreational vehicles. READ THIS MANUAL THOROUGHLY If any portion of this manualis not understood, contact the nearest Generac Authorized Service Dealer for starting, operating, and servicing procedures.

  • Page 3: Table Of Contents

    Testing Under Load ...33 Installation Checklist ...34 Section 4 – Troubleshooting ...35 Troubleshooting Guide ...35 Section 5 – Notes...36 Section 6 – Electrical Data...37 Section 7 – Exploded Views and Parts Lists ...40 Section 8 – Warranty...48 Generac ® Power Systems, Inc.

  • Page 4: Safety Rules

    Ensure all steps are taken to render the machine safe before attempting to work on the generator. GENERAL HAZARDS • For safety reasons, Generac recommends that the installation, initial startup, and maintenance of this equipment be performed by a Generac Authorized Service Dealer.

  • Page 5: Fire Hazards

    Never work on the equipment when physically or mentally fatigued. • Inspect the generator regularly, and contact the nearest Generac Authorized Service Dealer imme- diately for parts needing repair or replacement. • Before performing any maintenance on the genera- tor, disconnect its battery cables to prevent acci- dental startup.

  • Page 6: Section 1 - General Information

    3. Air Intake Tube 4. LP Fuel Regulator 5. Oil Dipstick and Filler Tube 6. LP Carburetor 7. LP Fuel Solenoid 8. Fuel Primer Switch Generac ® Power Systems, Inc. 2. Serial Number __________________ 4. Rated Voltage __________________ 6. Hertz __________________________ REFERENCE NUMBER IDENTIFICATION 9.

  • Page 7

    1.1.2 INVERTER FEATURES (PART NO. 0D4885) 1. Inverter 2. 12 Pin Connection 3. Customer AC Output Section 1 – General Information IMPACT-36 plus II Recreational Vehicle Generator REFERENCE NUMBER IDENTIFICATION 4. DC Input 5. Cooling Fan Generac ® Power Systems, Inc.

  • Page 8: Generator Applicability

    Before using the generator set, carefully read GEN- ERAL SAFETY RULES inside the cover. Comply with these RULES to prevent accidents and damage to equipment and/or property. Generac suggests copy- ing and posting the GENERAL SAFETY RULES in potential hazard areas of the recreational vehicle.

  • Page 9: Engine Protective Devices

    2.1.3 FUEL SUPPLY The engine must have adequate supply of proper fuel to operate. Before starting, check that sufficient fuel is available. Generac NOTE: ® Power Systems, Inc.

  • Page 10: Starting The Generator

    CLES MAY USE AN ISOLATING RECEPTACLE. SOME VEHICLES MAY BE EQUIPPED WITH A DC CONVERTER WHICH ALLOWS THE GENERATOR TO POWER CERTAIN DC LIGHTING AND OTHER DC LOADS. Generac ® Power Systems, Inc. To crank and start the generator engine, proceed as follows: 1.

  • Page 11: Applying Loads To Generator

    If the motor home generator has been submerged in water, it must NOT be started or operated. Following any submersion in water, have an authorized Generac Service Facility thoroughly clean and dry the generator. OPERATION IN HIGH GRASS OR BRUSH Never operate the generator while the vehicle is parked in high grass, weeds, brush or leaves.

  • Page 12: Section 3 - Maintenance

    Figure 3.1 — Oil Dipstick and Fill Tube Oil Dipstick and Fill Tube NOTE: See “Engine Oil Requirements”, Section 2.9 for recommended oils. 10 Generac ® Power Systems, Inc. CHANGE ENGINE OIL Change engine oil after the first 25 hours of opera- tion.

  • Page 13: Engine Air Cleaner

    Salt, as from sea air, worsens the problem since it tends to absorb moisture from the air. The combination of salt and moisture makes a good elec- trical conductor. Generac ® Power Systems, Inc. 11...

  • Page 14: Battery

    The carburetor should not be tampered with, as this will void the emission control system warranty. If the generator is used at altitudes in excess of 5,000 feet, consult the Generac Authorized Service Facility regarding high altitude jetting changes. 3.13 ADJUSTING VALVE CLEARANCE After the first 50 hours of operation, adjust the valve clearance in the engine.

  • Page 15: Major Service Manual

    Be sure to identify the unit’s MODEL NUMBER and SERIAL NUMBER. 3.15 EXERCISING THE GENERATOR Generac recommends that the generator is started and operated at least once every seven days. Let the unit run for at least 30 minutes to “exercise” the engine.

  • Page 16: Section 4 - Notes

    Section 4 – Notes IMPACT-36 plus II Recreational Vehicle Generator 14 Generac ® Power Systems, Inc.

  • Page 17: Part Ii - Installation Instructions

    PART II – INSTALLATION INSTRUCTIONS DANGER ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION!!

  • Page 18: Safety Rules

    (a) use of common hand tools, (b) use of special Generac tools, and (c) use of any tools and/or equipment from other suppliers. Generac cannot possibly know of, nor advise the...

  • Page 19: Electrical Hazards

    There must be no possibility of fuel vapors enter- ing the vehicle interior. • It is required to install an approved, flexible, non- conductive fuel line between the generator fuel con- nection point and the rigid fuel lines. Generac Safety Rules ® Power Systems, Inc. 17...

  • Page 20: Section 1 - General Information

    Boulevard, Rexdale, Ontario, Canada, M9W 1R3. EQUIPMENT 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.

  • Page 21: Section 2 - Installation

    Figure 2.2 — Typical Suspended Mounting • The installer must make certain that selected loca- tion will permit adequate cooling and ventilating air flow to be supplied. Generac System ® Power Systems, Inc. 19...

  • Page 22: Generator Compartments

    ALTERNATIVE TO GALVANIZED STEEL, DUE TO ALUMINUM'S LOW MELTING POINT. • If the compartment is lined with galvanized steel, it may be constructed of any material. Generac rec- ommends that the compartment be constructed of 1/2-inch thick plywood, with the floor made of a double thickness of plywood for added strength.

  • Page 23

    Use approved non-flam- mable insulating materials in high tempera- ture areas. Generac NOTE: DANGER NOTE: DANGER ® Power Systems, Inc. 21...

  • Page 24

    Figure 2.7 – Compartment Floor Cutout (0A6203-A) 22 Generac ® Power Systems, Inc. 2.2.4 COMPARTMENT FLOOR CUTOUTS Provide openings in the generator compartment for the following items (Figure 2.7):...

  • Page 25: Cooling And Ventilating Air

    The heated air flow is then deflected out the bottom toward the ground. Figure 2.9 — Air Flow Through Engine- Generac DANGER Generator ® Power Systems, Inc. 23...

  • Page 26

    • Provide a door in the vehicle skirt having an air inlet opening (Figure 2.11). 24 Generac ® Power Systems, Inc. Figure 2.11 — Suspended Mount Inlet Door •...

  • Page 27: Propane Gas Fuel System

    12 feet. If the cables are longer than needed, coil the excess near the inverter unit. If a greater length is needed, contact Generac. DO NOT ATTEMPT TO SHORTEN OR LENGTHEN THE SUPPLIED sensing harnesses. The DC power wires may be cut to the required length.

  • Page 28

    11 inch- es water column. Do NOT exceed 14 inches water column. Figure 2.16 — Propane Gas Carburetion Diagram 26 Generac ® Power Systems, Inc. • The installer must be sure the primary regulator is rated at sufficient gas flow to operate the generator plus all other gas appliances in the circuit.

  • Page 29: Exhaust System

    U.S. Forest Service. Use only mufflers and parts approved by Generac. Any per- son(s) installing an unapproved muffler, or an unap- proved exhaust system part, or modifying an exhaust...

  • Page 30: Electrical Connections

    • Use enough exhaust system hangers to prevent any part of the system from being dislocated. • Use exhaust system parts recommended by Generac. Using unapproved exhaust mufflers and exhaust system parts is the responsibility of the person(s) installing such unauthorized parts.

  • Page 31

    INTERRUPTERS The National Electric Code (NFPA 70, 551-7) requires installation of ground fault circuit inter- rupters (GFCIs) on all external and some internal electrical receptacles. Contact the dealer for recom- mendations. Generac less than units rated ® Power Systems, Inc. 29...

  • Page 32

    Section 2 – Installation IMPACT-36 plus II Recreational Vehicle Generator Figure 2.20 — Transfer Switch Isolation Method Figure 2.21 — Installation with Isolation Receptacle 30 Generac ® Power Systems, Inc. INVERTER POWER CORD FOR DOCKSIDE POWER INVERTER POWER SUPPLY CORD...

  • Page 33: Battery Installation

    Select battery cables based on (a) cable length, and (b) prevailing ambient temperatures. Generally, the longer the cable and the colder the weather, the larg- er the cable size must be as shown in the following chart. Generac ® Power Systems, Inc. 31...

  • Page 34: Optional Accessories

    Mount the battery on a strong, rigid supporting structure, where leaks and spills of battery fluid will not cause damage. 32 Generac ® Power Systems, Inc. CABLE SIZE 2.8.1 REMOTE PLUG-IN RECEPTACLE A plug-in receptacle (Figure 2.24) is provided on the...

  • Page 35: Section 3 - Post-installation Startup Checks

    The generator engine is equipped with a high tem- perature switch. The switch has normally-open (N.O.) contacts. When the temperature is too high, switch contacts close, and engine shuts down automatically. IMPORTANT: GENERAC RECOMMENDS THAT THE GENERATOR IS TESTED FOR ADEQUATE COOLING. Generac CHECKS SHIPPING.

  • Page 36: Installation Checklist

    Fuel tank complies with all applicable codes. Fuel system is properly installed and checked for leaks. DATE OF INSTALLATION NAME OF INSTALLER SIGNATURE OF INSTALLER 34 Generac ® Power Systems, Inc. EXHAUST SYSTEM Exhaust system complies with all applicable codes.

  • Page 37: Section 4 - Troubleshooting

    Reconnect or close wire. Replace board. Reset to ON or CLOSED. Reset and replace if necessary. Set to GENERATOR position. Take generator to an Authorized Generac facility. Take generator to an Authorized Generac facility. Generac ® Power Systems, Inc. 35...

  • Page 38: Section 5 - Notes

    Section 5 – Notes IMPACT-36 plus II Recreational Vehicle Generator 36 Generac ® Power Systems, Inc.

  • Page 39: Section 6 - Electrical Data

    Section 6 — Electrical Data IMPACT-36 plus II Recreational Vehicle Generator Major Features and Dimensions – Drawing No. 0E7561 Generac ® Power Systems, Inc. 37...

  • Page 40

    Section 6 — Electrical Data IMPACT-36 plus II Recreational Vehicle Generator Wiring Diagram and Schematic – Drawing No. 0D4947-B 38 Generac ® Power Systems, Inc.

  • Page 41

    Section 6 — Electrical Data IMPACT-36 plus II Recreational Vehicle Generator Wiring Diagram and Schematic – Drawing No. 0D4947-B Generac ® Power Systems, Inc. 39...

  • Page 42: Section 7 - Exploded Views And Parts Lists

    Section 7 — Exploded Views and Parts Lists IMPACT-36 plus II Recreational Vehicle Generator Control Panel – Drawing No. 0E7560 40 Generac ® Power Systems, Inc.

  • Page 43

    SHAKEPROOF EXT. #10 INVERTER ASSEMBLY M3-0.5 NUT WIRE HARNESS-HEATSINK TO PCBI WIRE HARNESS HARNESS-PCBI TO PANEL (NOT SHOWN FOR CLARITY) HARNESS-HEATSINK TO TERM. BLOCK (NOT SHOWN FOR CLARITY) HARNESS, CONTROL PANEL (NOT SHOWN FOR CLARITY) Generac ® Power Systems, Inc. 41...

  • Page 44

    Section 7 — Exploded Views and Parts Lists IMPACT-36 plus II Recreational Vehicle Generator Impact-34 plus II Sheet Metal – Drawing No. 0A9193-K 42 Generac ® Power Systems, Inc. 30 59...

  • Page 45

    M6-1.0 x 35MM HEX HD. CAPSCREW M6-1.0 HEX NUT M5-0.8 x 12MM PHILLIPS PAN HD. MACH. SCR. M5-0.8 HEX NUT LOCK WASHER, M5 RUBBER "U" CHANNEL CRIMPTITE #10-24 x 3/8" WIRE ASSEMBLY, BLOCKING DIODE Generac ® Power Systems, Inc. 43...

  • Page 46

    Section 7 — Exploded Views and Parts Lists IMPACT-36 plus II Recreational Vehicle Generator GN 220 RV Long Block – Drawing No. 0A6202-G 44 Generac ® Power Systems, Inc.

  • Page 47

    PLATE,PUSHROD GUIDE HEADBOLT M8 X 56 MM COVER ROCKER W/OUT BREATHER GASKET, BREATHER SCREW HHTT M6-1.0 X 12 YC GEROTER, OUTER 6/5 ASSY,OIL SUMP 220RV WEAR WSHER,VLV SPRNG SEAL,VALVE STEM 6.0 SPARK PLUG WASHER,SPRING Generac ® Power Systems, Inc. 45...

  • Page 48

    Section 7 — Exploded Views and Parts Lists IMPACT-36 plus II Recreational Vehicle Generator Generator – Drawing No. 0D4945-A 46 Generac ® Power Systems, Inc.

  • Page 49

    0C1085 0C2908 023484P 052617 023897 094090 086714 0D2446 0A8584 Generac DESCRIPTION TAPTITE M8-1.25 x 16MM SHCS, M6-1.0 x 25 LG OIL PRESSURE SWITCH WIRE HEX HD. CAPSCR., M8-1.25 x 16MM LOCK WASHER-M8 M6-1 x 20MM TAPTITE A/C DECAL (940) A/C DECAL (941) HEX HD.

  • Page 50: Section 8 - Warranty

    Owner’s Manual. For warranty purposes, Generac recommends that you retain all receipts covering maintenance on your engine. However, Generac cannot deny warranty solely because of the lack of receipts or for your failure to ensure the completion of all scheduled maintenance.

  • Page 51

    Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim. Generac shall not be held liable hereunder for failures of any warranted parts of a Generac engine caused by the use of such an unapproved, add-on, modified, counterfeit and/or “grey market”...

  • Page 52

    NOTE: ALL UNITS MUST BE INSTALLED BY GENERAC POWER SYSTEMS AUTHORIZED SERVICE FACILITIES. For a period of 3 (three) years of operation from the date of original sale, Generac Power Systems, Inc. (Generac) will, at its option, repair or replace any part which, upon examination, inspection and testing by Generac or a Generac Authorized Warranty Service Facility, is found to be defective under normal use and service, in accordance with the warranty schedule set forth below.

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