Generac 00784-2, 09290-4 owner manual Cooling and Ventilating AIR, Generator Airflow

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Section 2 – Installation

PRIMEPACT 50 and 70 (50Hz) Recreational Vehicle Generators

2.3 COOLING AND VENTILATING AIR

NOTE:

It is absolutely essential that an adequate flow of air for cooling, ventilating and engine combustion be supplied to the generator set. Without sufficient air- flow, the engine/generator quickly overheats. Such overheating can cause serious operating difficulties and also may cause fire and personal injury. The installer must make sure that sufficient air is avail- able to the generator for cooling, ventilating and com- bustion. The installer also must provide for a path for exhausting the cooling air to the exterior of a com- partment, if so equipped.

Never use discharged cooling air for heating or permit such air to enter the vehicle interior. This air contains deadly carbon monoxide gas and other poisonous, flammable or explosive gases.

◆2.3.1 GENERATOR AIRFLOW

Engine operation drives cooling fans for the two-stage cooling air system. A pressure fan draws cooling air into the top of the generator (Figure 2.9). This airflow cools the engine/generator and electronic compo- nents. The second part of the cooling system, a suc- tion fan, draws air that is heated from a hot engine into a collector pan at the base of the unit. This heat- ed air (although cooler than exhaust muffler) is then deflected out the bottom toward the ground.

Figure 2.9 – Airflow Through Engine/Generator

Screening, louvers or expanded metal that cover air openings restrict airflow. You must compensate for this by making the actual air opening propor- tionately larger. See Section 2.3.3 (Page 27).

Figure 2.10 – Air Inlet in Compartment Door

NOTE:

Be sure to meet the minimum clearances illustrat- ed in Figure 2.4 (Page 23).

When the unit is installed on a suspended mounting system, one of several different methods of supplying airflow may be used as follows:

•Provide a door in the vehicle skirt having an air inlet opening (Figure 2.11).

Figure 2.11 – Suspended Mount: Inlet Door

•Using ductwork (Figure 2.12, Page 27). The installer must be sure air is available to the top of the generator since air inlets are located at the top.

◆2.3.2 COOLING AIR INLET OPENINGS

The minimum size of the air inlet opening, whether the generator is housed in a conventional compart- ment or not, is at least 100 square inches (see Figure 2.10). This rule applies whether inlet air is brought in through an opening in the compartment door, an opening in the vehicle skirt, through duct- work, or by any other means.

26 Generac® Power Systems, Inc.

•By providing an opening in the vehicle skirt and space behind the generator for cooling airflow (Figure 2.13 Page 27). Recommended clearance behind the back of the generator is at least 1/2 inch (13 mm).

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Contents Power SYSTEMS, INC Authorized Service Dealer Location IntroductionTable of Contents General Hazards Electrical Hazards Generator Identification Reference Number IdentificationInstallation SafetyGenerator Applicability Generator AC Connection SystemSpecifications Fuel RequirementsEngine Generator PP50G/PP70GOptional Remote START/STOP Panel Generator Control PanelAutomatic Choke Before Starting the Engine Starting the GeneratorStopping the Generator Protection SystemsAdditional Information Overvoltage Protection1 25-HOUR BREAK-IN Period 2 25-HOUR CHECK-UPChecking the Engine OIL Level Changing the Engine OIL AND/OR OIL FilterMaintaining the Engine AIR Cleaner Clean AIR Intake ScreenCleaning the Foam Precleaner Checking the Engine Spark PlugCleaning the Generator Battery MaintenanceSpark Arrestor Muffler WeeklyOUT of Service Procedure Removal from ServiceDrive Belt Exercising the GeneratorReturn to Service Wattage Reference GuidePrimepact 50 and 70 50Hz Recreational Vehicle Generators Part General Hazards Electrical Hazards Purpose and Scope Manual Equipment DescriptionGenerator Engine Operating Speed Standards BookletsPrimePact 50 Location and Support Generator LocationGenerator Support Suspended MountingGenerator Compartments Generator RestraintCompartment Construction Compartment SizeAcoustics Sound Insulating MaterialsCompartment Floor Cutouts Typical Noise AbatementGenerator Airflow Cooling and Ventilating AIRCooling AIR Inlet Openings Gasoline Fuel System Testing the InstallationCompensating for Restrictions Exhaust System Fuel Tank Flexible Fuel LineGenerator Fuel Supply Line Rigid Fuel LinesExhaust System Safety Electrical ConnectionsMufflers and Spark Arrestors Type of Exhaust SystemIsolating Different Power Sources Power Supply CordGround Fault Circuit Inter Rupters Generator AC Connections18 Transfer Switch Isolation Method Optional Accessories Recommended BatteryBattery Cables Battery Cable ConnectionsPost Installation Tests Testing Under LoadBefore Initial START-UP Initial StartInstallation Checklist Troubleshooting Guide Problem Cause CorrectionElectrical Data Electrical Data Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists Lower Bearing Carrier Exploded Views and Parts Lists Bevelled Washer Exploded Views and Parts Lists Cylinder Assembly Exploded Views and Parts Lists Carburetor Assemby MANUFACTURER’S Emission Control System Warranty Coverage Your Warranty Rights and ObligationsPURCHASER’S/OWNER’S Warranty Responsibilities Emission Control System Warranty Emission Related Parts Include the FollowingRevised 10/05/01

00784-2, 09290-4 specifications

Generac is a prominent name in the power equipment industry, known for its reliable backup generators and innovative solutions. Among its impressive lineup are models like the Generac 00784-2 and the 09290-4, both designed to provide dependable performance for a variety of applications.

The Generac 00784-2 is a versatile portable inverter generator that stands out for its quiet operation and efficient power output. With a peak wattage of 3,300 watts and a running wattage of 2,600 watts, this generator is perfect for camping trips, tailgating, or as a backup power source during emergencies. One of the defining features of the 00784-2 is its TruePower Technology, which produces clean and stable power suitable for sensitive electronics such as laptops and smartphones. Additionally, its economy mode helps optimize fuel efficiency, allowing users to extend runtime while minimizing noise levels.

Weighing only 46 pounds, the 00784-2 is designed for mobility. Its compact design and integrated handle make transport and storage a breeze. The generator also features a built-in fuel gauge, enabling users to easily monitor fuel levels, and its easily accessible control panel allows for user-friendly operation.

On the other hand, the Generac 09290-4 is a powerful stationary generator aimed at providing robust backup power for homes and small businesses. With a 10,000-watt output, the 09290-4 can seamlessly power essential appliances during power outages, ensuring comfort and safety. This model features an automatic transfer switch, which detects power outages and automatically switches to generator power, providing peace of mind for users.

One of the unique aspects of the 09290-4 is its low oil level shutdown feature that protects the engine from damage, prolonging its lifespan. It is also equipped with Generac's G-Force engine, known for its durability and performance. The model is designed for easy maintenance, featuring accessible parts and a user-friendly maintenance schedule.

Both Generac models incorporate advanced safety features, such as circuit breakers and alert systems, ensuring safe operation. In summary, the Generac 00784-2 and the 09290-4 exemplify the brand's commitment to quality and innovation, offering reliable power solutions tailored to meet a variety of needs, whether for outdoor adventures or home backup.
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