Generac 004917-5 owner manual Specifications, Fuel Consumption, Reconfiguring the Fuel System

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Section 1 — General Information

QUIETSOURCELiquid-cooled 30 kW Generators

1.10 SPECIFICATIONS

NOTE:

‹ 1.10.1 GENERATOR SPECIFICATIONS

 

 

Single-phase

 

 

Model

4917-5

 

 

Rated Max. Cont.

27 (NG), 30 (LP)

 

 

AC Power Output (kW)

 

 

 

Rated voltage (volts)

120/240

 

 

No. of Rotor Poles

4

 

 

Driven Speed of Rotor

1800

 

 

Rotor Excitation System

Direct excited brush type

 

 

Type of Stator

4 Wire

 

 

Rotor/Stator Insulation

Class F/H

 

Fuel consumption is given at rated maximum con- tinuous power output when using natural gas rated at 1000 Btu per cubic foot. LP gas is rated at 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 a natural gas set up should be five inches to 14 inches of water column (0.18 to 0.5 psi) at all load ranges.

Fuel pressure for an LP vapor set up should be 11 inches to 14 inches of water column (0.4 to 0.5 psi) at all load ranges.

‹1.10.2 ENGINE SPECIFICATIONS

Make

Ford

Displacement

3.0 liters

Cylinder Arrangement

V-6

Valve Arrangement

Overhead Valve

Firing Order

1-4-2-5-3-6

Number of Main Bearings

4

Compression Ratio

9.3 to 1

No. of Teeth on Flywheel

164

Ignition Timing at 1800 rpm

30 degrees BTDC

Spark Plug Gap

0.042-0.046 inch

Recommended Spark Plugs

 

Motor Craft

AG, SF 32PGM

Oil Pressure

40-50 psi

Crankcase Oil Capacity

5.0 U.S. quarts (4.7 liters)

Recommended Engine Oil

SAE 5W-20

Type of Cooling System

Pressurized, closed recovery

Cooling Fan

Pusher Type

Cooling System Capacity

3.0 U.S. gallons (11.4 liters)

Recommended Coolant

Use a 50-50 mixture of

 

ethylene glycol base

 

and de-ionized water.

1.11 FUEL CONSUMPTION

Natural Gas:

 

% of Load

25%

50%

75%

100%

 

m3/hr

3.1

5.9

8.5

11.0

 

ft3/hr

110.3

209.0

299.5

387.0

LP Vapor:

 

 

 

 

 

% of Load

25%

50%

75%

100%

 

m3/hr

1.3

2.4

3.5

4.5

 

ft3/hr

45.6

86.4

123.8

160.0

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 vapor, 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 Installation ‹ Operation and Maintenance Authorized Service Dealer Location‹ HOW to Obtain Service IntroductionTable of Contents General Hazards Electrical Hazards Generator Transfer SwitchAutomatic System Operation Generator AC Connection Systems‹ 1.7.1 LOW OIL Pressure Switch ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.3 LOW Coolant Level Switch Generator Fuel SystemLifting the Generator UnpackingReconfiguring the Fuel System Specifications‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsBefore Installation Torque SpecificationsEngine OIL Recommendations Coolant RecommendationsGenerator Mounting Support Generator LocationBasic Standby Electric System ‹ 2.1.1 Nfpa StandardsTotal Circuit Isolation Method Emergency Circuit Isolation MethodGrounding the Generator Generator AC Neutral ConnectionsBattery Installation Transfer Switch Signal Connections‹ 2.9.1 PRE-PACKAGED ATS ‹ 2.9.2 GTS-TYPE ATSPreparation Before START-UP ‹ 3.2.1 AUTO/OFF/MANUAL Switch Using AN Engineered GTS Transfer SwitchControl Console Components ‹ 2.11.7 Electrical System‹ 3.2.2 Fault Indicator LED Manual Transfer START-UP Engine Governor Adjustments‹ 3.2.5 SET Exercise Time Switch ‹ 3.2.4 4 AMP Inline FuseRetransfer and Shutdown Automatic OperationWeekly Exercise Cycle Overload Protection for Engine DC Electrical System Checking Fluid LevelsCooling System ‹ 4.4.3 Engine Coolant ‹ 4.5.2 Check Battery‹ 4.5.1 Check Engine OIL Level ‹ 4.5.3 Exercise System‹ 4.5.11 Changing the Engine AIR Cleaner Miscellaneous Maintenance‹ 4.6.1 Cleaning the Generator ‹ 4.5.13 Coolant Change‹ 4.6.2 Battery ‹ 4.6.3 Battery Maintenance‹ 4.6.4 Battery Replacement Service Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsCustomer Connection PCB J2 BCW LOS WLS HCT Starter Carrier Bolt Battery Post Cover Baclk Boot Battery CableBattery Post Cover RED + Hold Down BatteryDetail Duct Intake MID AL Assy Wire 14AWG 7.5 #0 GRN/YELDuct Discharge RH AL Duct Discharge LH ALGenerac Power Systems, Inc Control BOX HSB Assy 2A 12V UL BatteryDecal AVR Cover Cover Front Panel HSBLiquid-cooled 30 No F6836-A Not SHOWN-USED to Hold OIL Drain Assembly Wire SET 3.0L Ford notCoil Ignition 3.0L Ford Bracket DC ALT 3.0L FordFrame Radiator R-IN,L-OUT Tank Coolant RecoveryVenturi 3.0L Ford HSB Side Support Radiator HSBTo B Flange Fuel Inlet Weldment Mounting BaseAssy Regulator 3.0L NG or LPV Washer Flat 5/16 ZincLocktight Rotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB TecumPipe Muffler OUT Exhaust Flange 2 PipeWasher Lock 3/8 SS Gasket Exhaust RingElement AIR Cleaner Plate AIR Cleaner AdapterCover AIR Cleaner Adapter Carburetor W/PVC ConnInstallation Diagram Quietsource Liquid-cooled 30 kW Generators This Warranty Shall not Apply to the Following