Generac 04674-2, 04673-2, 04675-3 owner manual Electrical Hazards, ‹ Standards Index

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IMPORTANT SAFETY INSTRUCTIONS

Generac Air-cooled 7 kW, 12 kW and 15 kW Generators

ELECTRICAL HAZARDS

•All generators covered by this manual produce dangerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely high and dangerous voltages to the transfer switch as does the standby generator when it is in opera- tion. Avoid contact with bare wires, terminals, con- nections, etc., while the unit is running. Ensure all appropriate covers, guards and barriers are in place before operating the generator. If work must be done around an operating unit, stand on an insulated, dry surface to reduce shock hazard.

•Do not handle any kind of electrical device while standing in water, while barefoot, or while hands or feet are wet. DANGEROUS ELECTRICAL SHOCK MAY RESULT.

•The National Electrical Code (NEC) requires the frame and external electrically conductive parts of the generator to be connected to an approved earth ground. Local electrical codes also may require proper grounding of the generator electrical system.

•After installing this home standby electrical sys- tem, the generator may crank and start at any time without warning. When this occurs, load circuits are transferred to the STANDBY (generator) power source. To prevent possible injury if such a start and transfer occur, always set the generator’s AUTO/OFF/MANUAL switch to its OFF position before working on equipment and remove the 5A and 15A fuses from the generator control panel.

•In case of accident caused by electric shock, imme- diately shut down the source of electrical power. If this is not possible, attempt to free the victim from the live conductor. AVOID DIRECT CONTACT WITH THE VICTIM. Use a nonconducting implement, such as a rope or board, to free the victim from the live conductor. If the victim is unconscious, apply first aid and get immediate medical help.

•Never wear jewelry when working on this equip- ment. Jewelry can conduct electricity resulting in electric shock, or may get caught in moving com- ponents causing injury.

FIRE HAZARDS

•Keep a fire extinguisher near the generator at all times. Extinguishers rated “ABC” by the National Fire Protection Association are appropriate for use on the standby electric system. Keep the extin- guisher properly charged and be familiar with its use. If there are any questions pertaining to fire extinguishers, consult the local fire department.

EXPLOSION HAZARDS

•Do not smoke around the generator. Wipe up any fuel or oil spills immediately. Ensure that no com- bustible materials are left in the generator com- partment, or on or near the generator, as FIRE or EXPLOSION may result. Keep the area surround- ing the generator clean and free from debris.

•Gaseous fluids such as natural gas and liquid propane (LP) gas are extremely EXPLOSIVE. Install the fuel supply system according to applica- ble fuel-gas codes. Before placing the home stand- by electric system into service, fuel system lines must be properly purged and leak tested according to applicable code. After installation, inspect the fuel system periodically for leaks. No leakage is permitted.

‹STANDARDS INDEX

In the absence of pertinent standards, codes, regula- tions and laws, the published information listed below may be used as installation guide for this equipment.

1.NFPA No. 37, STATIONARY COMBUSTION ENGINES AND GAS TURBINES, available from the National Fire Protection Association, 470 Atlantic Avenue, Boston, MA 02210.

2.NFPA No. 76A, ESSENTIAL ELECTRICAL SYS- TEMS FOR HEALTH CARE FACILITIES, avail- able same as Item 1.

3.NFPA No. 54, NATIONAL FUEL GAS CODE, available same as Item 1.

4.NFPA No. 58, AMERICAN NATIONAL STANDARD FOR STORAGE AND HANDLING OF LIQUEFIED PETROLEUM GAS, available same as Item 1.

5.NFPA No. 70, NFPA HANDBOOK OF NATIONAL ELECTRIC CODE, available same as Item 1.

•For fire safety, the generator must be installed and maintained properly. Installation always must comply with applicable codes, standards, laws and regulations. Adhere strictly to local, state and national electrical and building codes. Comply with regulations the Occupational Safety and Health Administration (OSHA) has established. Also, ensure that the generator is installed in accordance with the manufacturer’s instructions and recommendations. Following proper installa- tion, do nothing that might alter a safe installation and render the unit in noncompliance with the aforementioned codes, standards, laws and regu- lations.

6.Article X, NATIONAL BUILDING CODE, available from the American Insurance Association, 85 John Street, New York, N.Y. 10038.

7.AGRICULTURAL WIRING HANDBOOK, available from the Food and Energy Council, 909 University Avenue, Columbia, MO 65201.

8.ASAE EP-3634, INSTALLATION AND MAINTE-

NANCE OF FARM STANDBY ELECTRICAL SYS- TEMS, available from the American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI 49085.

9.NFPA No. 30, FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE, available same as Item 1.

Generac® Power Systems, Inc. 3

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Contents Installation Authorized Dealer Location IntroductionMaintenance Post Installation Start-up AdjustmentsTroubleshooting Introduction Inside Front CoverGeneral Hazards ‹ Standards Index Electrical HazardsSystem SET LED UNPACKING/INSPECTIONProtection Systems Gfci Generator‹ 1.5.2 Engine Specifications‹ 1.5.1 Generator Fuel Requirements Recommendations Reconfiguring the Fuel SystemFuel Consumption 1 7 KW, 410CCLocation Transfer SwitchGenerator 2.1 7 kW, 12 kW and 15 kW UnitsBattery Battery InstallationElectrical Checks Check Transfer Switch OperationBefore Initial START-UP Checking Automatic Operation Generator Tests Under Load1 7 KW Units Adjusting the Regulator Natural GAS onlyEngine Governor Adjustment 2 12 KW and 15 KW Units Voltage Regulator AdjustmentAutomatic Transfer Operation BREAK-IN ProcedureSequence of Automatic Operation ‹ 3.2.1 Auto PositionManual Transfer Operation ‹ 3.5.2 Transfer Back to Utility Power Source‹ 3.7.1 LOW OIL Pressure Switch Setting the Exercise Timer‹ 3.7.2 High Temperature Switch ‹ 3.7.3 OvercrankChanging the Engine OIL Checking the Engine OIL LevelApproximate Crank Cycle Times ‹ 3.7.4 Overspeed‹ 4.5.1 7 KW, 12 KW and 15 KW Generators ‹ 4.3.2 OIL Change ProcedureChanging the OIL Filter Spark Plugs Battery MaintenanceCooling System Adjusting Valve Clearance‹ 4.12.2 Return to Service OUT of Service Procedure‹ 4.12.1 Removal from Service Corrosion ProtectionSYSTEM/COMPONENT Procedure Frequency Service ScheduleProblem Cause Correction Troubleshooting GuideElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR SW1 Exploded Views and Parts Lists Part NO. QTY. Description Exploded Views and Parts Lists Part NO. QTY Description 1310 Sleeve Exploded Views and Parts Lists Item Part NO. QTY. Description 14 20 QTY Description Exploded Views and Parts Lists Stator 12KW Exploded Views and Parts Lists PIN, Piston D20 Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome Exploded Views and Parts Lists CASTING, Twin Regulator Housing Dimensions Generac Air-cooled 7 kW, 12 kW and 15 kW Generators PURCHASER’S/OWNER’S Warranty Responsibilities Your Warranty Rights and ObligationsMANUFACTURER’S Emission Control System Warranty Coverage Emission Related Parts Include the Following Emission Control System WarrantyWarranty Schedule
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04674-2, 04675-3, 04673-2 specifications

Generac, a prominent name in the power equipment sector, offers a range of reliable and efficient energy solutions, including the models Generac 04673-2, 04675-3, and 04674-2. These models are designed to meet diverse consumer needs, from residential applications to larger commercial setups, providing dependable backup power during outages.

The Generac 04673-2 is a standout home standby generator specifically engineered for residential use. It boasts an automatic operation feature, ensuring that power is restored within seconds of an outage. This model operates on a robust Generac engine, delivering a reliable power output that can support essential household appliances and systems, including HVAC units, refrigerators, and sump pumps. One of the main characteristics of this generator is its Quiet Test mode, which runs at a lower RPM to minimize noise while conducting weekly self-tests, ensuring that the system is always ready when needed.

Moving on to the Generac 04675-3, this model offers enhanced features tailored for users needing higher power output. With a larger capacity, it can handle more demanding power needs, making it suitable for larger homes or small businesses. The 04675-3 is equipped with advanced technologies, including the Mobile Link™ remote monitoring system, which enables users to check the status and performance of their generator from anywhere using a smartphone or computer. This connectivity empowers users with real-time information and alerts regarding their generator's operational performance.

The Generac 04674-2 model rounds out the trio, engineered for those who need a powerful standby generator with a slightly different configuration. It features the same robust engine as the other models, ensuring reliability and user-friendly operation. Its standout feature is the integrated transfer switch capability, which allows for seamless transfer of power from the grid to the generator without manual intervention. This model also supports various fuel types, providing flexibility depending on user preference and availability.

All three Generac models focus on safety and efficiency, incorporating features such as excellent ventilation systems, all-weather enclosures, and user-friendly control panels. They are designed for low maintenance, ensuring long-lasting performance without extensive upkeep. With Generac's commitment to innovation and quality, these generators offer peace of mind, enabling users to maintain their lifestyles and operations without interruption during power outages. Whether for home or business use, the Generac 04673-2, 04675-3, and 04674-2 models represent a reliable choice in emergency power solutions.
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