Generac Power Systems 005261-1, 005262-1 owner manual ‹ Fuel Requirements, ‹ LP Fuel System

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Standby Generator Sets

Fuel Systems

FUEL SYSTEM

‹FUEL REQUIREMENTS

The standby generator may be equipped with one of the following fuel systems:

•Natural gas fuel system

•Propane vapor (PV) fuel system

The Manual Drawing Listing that is affixed to the unit includes the “Identification Code,” which may be used to identify the type of fuel system installed on the unit.

Recommended fuels should have a Btu content of at least 1,000 Btus per cubic foot for natural gas; or at least 2,520 Btus per cubic foot for LP gas. Ask the fuel supplier for the Btu content of the fuel.

Required fuel pressure for natural gas is 5 inches to 14 inches water column (0.18 to 0.5 psi); and for liquid propane, 5 inches to 14 inches of water column (0.18 to 0.5 psi).

NOTE:

Any piping used to connect the generator to the fuel supply should be of adequate size to ensure the fuel pressure NEVER drops below five inches water column for natural gas or 5 inches water column for propane vapor for all load ranges.

NOTE:

It is the responsibility of the installer to make sure that only the correct recommended fuel is sup- plied to the generator fuel system. Thereafter, the owner/operator must make certain that only the proper fuel is supplied.

‹NATURAL GAS FUEL SYSTEM

Natural gas is supplied in its vapor state. In most cases, the gas distribution company provides piping from the main gas distribution line to the standby generator site. The following information applies to natural gas fuel systems.

•Gas pressure in a building is usually regulated by national, state and local codes.

•To reduce gas pressure to a safe level before the gas enters a building, a primary regulator is needed. The natural gas supplier may or may not supply such a regulator.

•It is the responsibility of the gas supplier to make sure sufficient gas pressure is available to operate the primary regulator.

•Gas pressure at the inlet to the fuel shutoff sole- noid should not exceed approximately 14 inches water column (0.5 psi). Optimum pressure at the fuel shutoff solenoid is 11 inches water column (0.4 psi).

‹PROPANE VAPOR WITHDRAWAL FUEL SYSTEM

This type of system utilizes the vapors formed above the liquid fuel in the supply tank. Approximately 10 to 20 percent of the tank capacity is needed for fuel expansion from the liquid to the vapor state. The vapor withdrawal system is generally best suited for smaller engines that require less fuel. The installer should be aware of the following:

•The natural gas and LP gas systems are similar. However, the natural gas system delivers gas at a pressure of approximately five inches water col- umn to the carburetor.

•When ambient temperatures are low and engine fuel consumption is high, the vapor withdrawal system may not function efficiently.

•Ambient temperatures around the supply tank must be high enough to sustain adequate vaporiza- tion, or the system will not deliver the needed fuel volume.

•In addition to the cooling effects of ambient air, the vaporization process itself provides an additional cooling effect.

‹LP FUEL SYSTEM

LP is supplied as a liquid in pressure tanks. It is usually made up of propane, butane, or a mixture of the two gases. Propane tends to vaporize readily even at temperatures as low as -20° F (-29° C). However, butane reverts to its liquid state when temperatures drop below 32° F (0° C).

LP in a liquid withdrawal system must be converted to its gaseous state before it is introduced into the engine carburetor. A vaporizer-converter is generally used to accomplish this. In such a converter, heated engine coolant is ported through the converter to provide the necessary heat for conversion of the fuel from a liquid to a gaseous state.

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Contents New standard of reliability Standby Generator Sets Table of Contents  Warning   Electrical Hazards  ‹ HOW to Obtain Service ‹ Operation and MaintenanceAuthorized Service Dealer Location Introduction‹ Data Label Identification RecordEquipment Description Engine OIL RecommendationsCoolant Recommendations Engine Protective Devices ‹ Fuel Requirements Fuel System‹ Natural GAS Fuel System ‹ LP Fuel SystemSpecifications ‹ Cold Weather KIT ‹ Reconfiguring the Fuel System‹ FOUR-LEAD, SINGLE-PHASE Stator Alternator Power Winding Connections‹ 3-PHASE Alternators Generator AC Lead ConnectionsInstallation Preparation Before START-UPInitial Inspection for QT Genset Startup START-UP Checklist ‹ Preparation for START-UP‹ START-UP Inspection Generator Control Operation Operating Unit with Manual Transfer Switch‹ Engine START-UP and Transfer ‹ Retransfer and ShutdownChecking Fluid Levels Cooling SystemMaintenance Owner Operator can Perform ‹ Changing the Engine AIR Cleaner ‹ Coolant Change ‹ Changing Engine OIL‹ Spark Plugs ‹ Cleaning the Generator Miscellaneous Maintenance‹ Battery ‹ Battery MaintenanceKW 150 KW Standby GAS Engine Driven Generator Sets Service ScheduleMaintenance Level 11-3 11-4 Problem Cause Correction Troubleshooting GuideStandby Generator Sets Page PAN CB Conn BOX Page UL Circuit Breaker QJ-2P Page Instr Hypot Test not Shown Page Components Included in 0F9696E Page Components Included in 0G1290E Page Weldment Frame 2.4L C2 Page Battery Tray C1 CPL Page Gasket Bosch 32 Page Engine 2.4L G2 Rework Page Weldment Radiator Support 2.4L Page Flange Fuel Inlet Page Rear Wrap C2 CPL Page Bracket Muffler Page Page Page Page Page Page Page Page Page Page Page C2 Units Standby Generator Sets Warranty

005261-1, 005262-1 specifications

Generac Power Systems, a leader in backup power solutions, offers a range of generators designed to meet different power needs. Among their notable products are the Generac models 005261-1 and 005262-1, which are both excellent options for residential and commercial applications. These generators are specifically designed to provide reliable power during outages, ensuring that homes and businesses remain operational when it matters most.

One of the standout features of the Generac 005261-1 and 005262-1 models is their automatic transfer switch technology. This feature allows the generators to detect power outages automatically and switch on within seconds, providing uninterrupted power. The systems are designed for ease of use, with a user-friendly control panel that displays critical information about the generator’s status and maintenance requirements.

Both models are powered by Generac's innovative engine technology, which ensures superior performance and fuel efficiency. The engines are engineered to run quietly while delivering ample power output. The 005261-1 typically offers up to 22 kW of backup power, while the 005262-1 goes up to 26 kW, making them suitable for larger homes or essential commercial applications.

In terms of construction, the Generac models feature durable weather-resistant enclosures, ensuring they can withstand harsh environmental conditions. Their compact design makes installation straightforward, with options for both concrete pads and low-profile installations. Furthermore, both generators are equipped with a state-of-the-art digital controller that allows users to monitor the system remotely.

Another important characteristic is the Generac Power Zone Mobile Link, which allows users to monitor their generator’s status via a smartphone app. This feature provides peace of mind, as users can receive alerts regarding power outages, routine maintenance, and operational status in real time, even when they are not home.

The maintenance of these generators is simplified by their built-in features, including an integrated maintenance reminder system that alerts users when service is due. This proactive approach aids in extending the life of the generator and optimizing performance over time.

In summary, the Generac Power Systems models 005261-1 and 005262-1 offer a blend of reliability, efficiency, and advanced technology. With automatic transfer switches, robust engine design, and smart monitoring capabilities, these generators stand out in the market as excellent choices for backup power needs. Whether for residential use or light commercial applications, users can trust in Generac’s commitment to delivering dependable power solutions.
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