Generac 37kW NG, 40kW LP Specifications, Fuel Consumption, Reconfiguring the Fuel System

Page 9

Section 1 — General Information

QUIETSOURCE™ 40kW Liquid-cooled Generators

1.10 SPECIFICATIONS

NOTE:

‹ 1.10.1 GENERATOR SPECIFICATIONS

 

 

Single-phase

 

 

Model

005012-0

 

 

Rated Max. Cont.

37 (NG), 40 (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 consump- tion obtained may vary depending on such vari- ables as applied load, ambient temperature, engine conditions and other environmental fac- tors.

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

Chrysler

Displacement

3.9 liters

Cylinder Arrangement

V-6

Valve Arrangement

Overhead Valve

Firing Order

1-6-5-4-3-2

Number of Main Bearings

4

Compression Ratio

9.1 to 1

No. of Teeth on Flywheel

164

Ignition Timing at 1800 rpm

30 degrees BTDC

Spark Plug Gap

1.01mm (0.040 in.)

Recommended Spark Plugs

 

Champion

RC12LC4

Oil Pressure

30-80 psi

Crankcase Oil Capacity

4.0 U.S. quarts (3.8 liters)

Recommended Engine Oil

SAE 15W-40

Type of Cooling System

Pressurized, closed recovery

Cooling Fan

Pusher Type

Cooling System Capacity

5.0 U.S. gallons (19.3 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

4.1

7.7

11.0

14.2

 

ft3/hr

143.1

271.1

388.5

502.0

LP Vapor:

 

 

 

 

 

% of Load

25%

50%

75%

100%

 

m3/hr

1.7

3.3

4.7

6.0

 

ft3/hr

60.7

115.0

164.9

213.0

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).

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

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.

Generac® Power Systems, Inc. 7

Image 9
Contents Liquid-cooled, Prepackaged Standby Generators ‹ 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‹ 1.7.2 High Coolant Temperature Switch ‹ 1.7.1 LOW OIL Pressure 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 StandardsEmergency Circuit Isolation Method Transfer Switch Signal ConnectionsTotal Circuit Isolation Method Generator AC Neutral ConnectionsBattery Installation ‹ 2.9.2 GTS-TYPE Engineered Transfer Switch‹ 2.10.1 Vented Batteries Preparation Before START-UP Using AN Engineered GTS Transfer Switch‹ 3.2.2 Fault Indicator LED ‹ 3.2.1 AUTO/OFF/MANUAL Switch‹ 3.2.5 SET Exercise Time Switch Control Console ComponentsRetransfer and Shutdown Manual Transfer START-UP Engine Governor AdjustmentsAutomatic Operation Weekly Exercise CycleOverload Protection for Engine DC Electrical System Cooling SystemChecking Fluid Levels ‹ 4.5.10 Changing Engine OIL ‹ 4.5.11 Changing the Engine AIR Cleaner‹ 4.5.12 Spark Plugs ‹ 4.5.13 Coolant Change‹ 4.6.1 Cleaning the Generator Miscellaneous Maintenance‹ 4.6.2 Battery ‹ 4.6.4 Battery ReplacementService Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsInstallation Diagram Electrical Data Electrical Data Electrical Data Electrical Data Carrier Rear Bearing Hold Down Battery Assy WireBoot Battery Cable Battery Post Covwer BlackSee Latch Detail ASSEMBLY,BASE-DOOR Ground Wire Assy GRD Wire 99HSBDuct Intake MID AL Duct Discharge RH ALGenerac Power Systems, Inc Control BOX HSB Assy 2A 12V UL BatteryCover Front Panel HSB Cover TOP Panel HSB ShockGenerac Power Systems, Inc Assembly Resistor Cover Flywheel AccessFlexplate 3.9L HSB SunkPump Radiator Copper Brass Tank Coolant RecoveryVENTURI,3.9L Cryslr HSB 22FAN Radiator Support L/H SideTo Engine Hold Down AIR Cleaner Base AIR Cleaner PlatePlate AIR Cleaner TOP Flange Fuel InletLeads Rotor 390 40KW 1P Direct HSB Rotor 390 30KW 1P Direct HSBSTR-390--40AD HSB 433MM LONG3.9L Chrysler Rear Bearing Carrier 390/DRCTWYE, Pipe 3.9L Chrysler OUTNUT TOP Lock FL M12-1.75 Pipe L/H Exhaust ManifoldQuietsource 40kW Liquid-cooled Generators Quietsource 40kW Liquid-cooled Generators Quietsource 40kW Liquid-cooled Generators This Warranty Shall not Apply to the Following