Generac 0047210, 0047220, 0047230, 0047240, 0047250, 0047251, 0047252, 0047253, 0047260

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Section 1 — General Information

Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators

1.10 SPECIFICATIONS

‹ 1.10.1 GENERATOR SPECIFICATIONS

 

 

Single-Phase

 

 

Model

004725

 

004723

004721

 

 

 

004726

 

004724

004722

 

 

Rated Max. Cont.

25

 

20

15

 

 

AC Power Output (kW)

 

 

 

 

 

 

Rated voltage (volts)

 

120/240

 

 

 

No. of Rotor Poles

 

2

4

 

 

Driven Speed of Rotor

3600

 

3600

1800

 

 

Rotor Excitation System

Direct excited brush type

 

 

Type of Stator

 

 

4 Wire

 

 

 

Rotor/Stator Insulation

 

 

Class F

 

 

 

 

 

 

 

 

 

NOTE:

Fuel consumption is given at rated maximum con- tinuous power output when using natural gas rated at 1000 Btu per cubic foot and LP gas rated 2520 Btu per cubic foot. Actual fuel consumption obtained may vary depending on such variables as applied load, ambient temperature, engine condi- tions and other environmental factors.

Fuel pressure for both natural gas and liquid propane set ups should be 11 inches to 14 inches of water column (0.6 psi) at all load ranges.

NOTE:

A seperate gas line and regulator may be needed to assure proper gas pressure (11-14”) to the gen- erator. Low gas pressure can cause hard starting and could affect engine durability.

‹1.10.2 ENGINE SPECIFICATIONS

Make

Mitsubishi

Displacement

92 inches3 (1.5 liters)

Cylinder Arrangement

4, in-line

Valve Arrangement

Overhead Cam

Firing Order

1-3-4-2

Number of Main Bearings

5

Compression Ratio

9 to 1

No. of Teeth on Flywheel

104

Ignition Timing

 

at 1800 rpm

35 degrees BTDC

at 3600 rpm

43 degrees BTDC

Spark Plug Gap

0.020-0.025 inch

Recommended Spark Plugs

 

Champion

RN11YC4

Oil Pressure

30-50 psi

Crankcase Oil Capacity

3.0 U.S. quarts (2.8 liters)

Recommended Engine Oil

SAE 15W-40

Type of Cooling System

Pressurized, closed recovery

Cooling Fan

Pusher Type

Cooling System Capacity

2 U.S. gallons (7.6 liters)

Recommended Coolant

Use a 50-50 mixture of

 

ethylene glycol base.

1.11 FUEL CONSUMPTION

25 kW Models

Using Natural Gas

........................................441 cu. ft. per hour

Using LP Gas

175 cubic ft.(4.8 gal.) per hour

20 kW Models

 

Using Natural Gas

........................................359 cu. ft. per hour

Using LP Gas

143 cubic ft. (4.0 gal.) per hour

15 kW Models

 

Using Natural Gas

........................................277 cu. ft. per hour

Using LP Gas

110 cubic ft.(3.1 gal.) per hour

1.12RECONFIGURING THE FUEL SYSTEM

NOTE:

All models are configured for natural gas from the factory.

To reconfigure the fuel system from NG to LP, follow these steps:

1.Turn the main gas supply off.

2.Remove the carburetor fuel hose from the outlet port (Port 1) of the demand regulator (Figure 1.8).

3.Remove the brass hose fitting from the outlet port (Port 1) of the demand regulator.

4.Remove pipe plug from Port 2.

5.Install brass hose fitting into Port 2.

6.Install pipe plug into Port 1.

7.Connect carburetor gas hose to brass fitting.

8.Tighten all clamps and plugs.

9.Make sure fuel supply is of the proper pressure and type for configuration.

10.Reverse the procedure to convert back to natural gas.

Figure 1.8 — Reconfigure the Fuel System

 

Port 1

 

Port 2

 

FUEL HOSE

FUEL HOSE

 

PLUG

BRASS HOSE

BRASS HOSE

PLUG

FITTING

FITTING

 

 

 

OUT

OUT

 

 

PORT 1

PORT 2

 

 

HOUSING

HOUSING

 

 

PORTS

 

 

PORTS

 

 

 

 

NG FUEL SYSTEM

LP FUEL SYSTEM

Generac® Power Systems, Inc. 7

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Contents Liquid-cooled, Prepackaged Standby Generators ‹ Operation and Maintenance Authorized Service Dealer Location‹ HOW to Obtain Service IntroductionIntroduction IFC Safety Rules General Hazards Electrical Hazards Generator Transfer SwitchAutomatic System Operation Generator AC Connection Systems‹ 1.7.2 High Coolant Temperature Switch ‹ 1.7.1 LOW OIL Pressure Switch‹ 1.7.3 LOW Coolant Level Switch Engine Protective DevicesLifting the Generator UnpackingReconfiguring the Fuel System Specifications‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsTorque Specifications Engine OIL RecommendationsCoolant Recommendations Basic Standby Electric System Generator Mounting SupportGenerator Location ‹ 2.1.1 Nfpa StandardsEmergency Circuit Isolation Method Transfer Switch Start Signal ConnectionsTotal Circuit Isolation Method Grounding the GeneratorPreparation Before START-UP Battery Installation‹ 2.10.1 Vented Batteries ‹ 2.11.1 Prior to Initial START-UPControl Console Components Using a Standard GTS Transfer SwitchWeekly Exercise Cycle Manual Transfer START-UP Automatic OperationEngine Heater Cooling System Overload Protection for Engine DC Electrical SystemChecking Fluid Levels ‹ 4.5.4 Inspect Cooling System ‹ 4.5.11 Changing the Engine AIR Cleaner‹ 4.5.5 Check Engine Coolant Level ‹ 4.5.6 Perform Visual Inspection‹ 4.5.13 Coolant Change Miscellaneous Maintenance‹ 4.6.4 Battery Replacement ‹ 4.6.3 Battery MaintenanceService Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsGuardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Installation Diagram Section DC-VR Customer Connection 120/240V 1-PHASE Electrical Data Connector Interface Assembly Housing Governor ConnectorCover Connector Housing ASM Motor StepperWasher Shakeproof EXT 5/16 STL BASE,MOUNTING 1.5L STNRD&ACSTCDampener Vibration Washer Flat 5/16 ZincRoof Cover Cable Weld Stud Under GRD Wire Assy 99HSB Assembly BASE-DOOR Ground WireAssembly Cover Access Roof ACSTC&STND Cmprtmnt 1.5LWeld Stud Under Roof Panel for Access Cover Cable ROOF, ACSTC&STND Cmprtmnt 1.5L ASSEMBLY,BASE-DOOR Ground WireSUPPORT, Radiator 1.5L Mitsu BRACE, Side 1.5L MitsuTo a Screw Hhtt M5-0.8 X 12 BP Wire AssemblyWasher Flat #10 Zinc SilkscHardware ARM Adjust Alternator Switch OIL PressureGround Wire Starter ENGINE-1.5L16 7 Radiator 1.5L Tank Coolant RecoveryVenturi 1.5L Modine Guard FAN 1.5L ModineVapor GASKET, AIR Cleaner Adapter Cover AIR CleanerWeldment Mounting Base Flange Fuel InletTo Engine Crankshaft Assy Rotor 10KW Housing BlowerAssy Rotor 15KW Assy Rotor 20KWBOOT, Battery Cable ASSY,WIRE#16 REDBRACKET, Battery Hold Down Battery Post Cover RED+Nipple TOE 1.5NPTX5.5 BLK Iron Manifold Exhaust 1.5LSaddle 2 Inch PIPE,EXHAUST 1.5L STNDRD&ACSTCYour Warranty Rights and Obligations MANUFACTURER’S Emission Control System Warranty CoveragePURCHASER’S/OWNER’S Warranty Responsibilities Emission Related Parts Include the Following Emission Control System WarrantyThis Warranty Shall not Apply to the Following Warranty Schedule

0047210, 0047220, 0047230, 0047240, 0047250, 0047251, 0047252, 0047253, 0047260 specifications

Generac is renowned for its innovation in the power generation industry, and their range of generators—including models 0047210, 0047220, 0047230, 0047240, 0047250, 0047251, 0047252, 0047253, and 0047260—showcase advanced technologies and functionality that meet diverse power needs.

One of the standout features of these models is the use of Generac’s G-Force Engine, specifically designed for reliability and longevity. This engine is notorious for its durability, capable of handling demanding workloads and proving to be more efficient than typical engines found in similar generators. It provides quick start times, lower emissions, and is built to withstand extended operational cycles.

Another notable technology in these models is the Quiet-Test™ mode, which enables the generator to run at a lower RPM while it performs an exercise routine. This feature not only reduces noise during operation but also conserves fuel, making it an eco-friendly option that doesn’t compromise on performance.

The generators are equipped with advanced monitoring and control features, including the Mobile Link™ application compatibility. This allows users to monitor the status of their generator remotely via a smartphone or tablet, offering peace of mind and real-time access to the generator's operational functioning. This connectivity also enables the user to receive alerts and notifications about maintenance needs or when the generator is in need of attention.

In terms of design, these models boast a robust steel enclosure that offers superior protection against the elements, thereby enhancing durability and ensuring efficient operation regardless of weather conditions. The enclosures also come with a weather-resistant finish, making them suitable for outdoor installation.

Moreover, the generators feature a well-thought-out installation process with easily accessible controls and noise-reduction technology, which helps minimize disturbances for residential applications. They also offer multiple power outputs, catering to varied energy needs, from essential home appliances to larger devices.

Safety is a core consideration with Generac models, and features such as the automatic shutdown mechanism prevent overheating, ensuring operational safety during use. Coupled with an efficient fuel consumption rate, these generators stand out as impeccable solutions for power backup in homes and businesses alike.

The series exemplifies Generac’s commitment to excellence in power solutions, integrating user-friendly technology, efficient performance, and top-tier safety into compact, durable designs. Users can rely on models 0047210 to 0047260 for dependable power generation tailored to their specific needs.