Generac 20kW owner manual Specifications

Page 10

Standby Generator Sets

Specifications

SPECIFICATIONS

‹ GENERATOR

Type

Synchronous

Rotor Insulation

Class F

Stator Insulation

Class F

Total Harmonic Distortion

< 5%

Telephone Interference Factor (TIF)

< 50

Alternator Output Leads 3-phase

4-wire

Bearings

Sealed Ball

Coupling

Flexible Disc

Load Capacity (Standby Rating)

20kW*

*NOTE: Generator rating and perfomance in accordance with ISO8528-5, BS5514, SAE J1349, ISO3046 and DIN 6271 Standards. KW rating is based on LPG fuel and may derate with natural gas.

Excitation System

 

Direct

Generator Output Voltage/kW - 60 Hz

kW

Amp

CB Size

120/240V, 1-phase, 1.0 pf

20

83

100

120/208V, 3-phase, 0.8 pf

20

69

100

Generator Locked Rotor KVA Available @ Voltage Dip of 35%

Single-phase or 208 3-phase

 

34 KVA

‹ ENGINE

Make

Generac

Model

In Line

Cylinders and Arrangement

4

Displacement

1.5 Liter

Bore

2.97 in.

Stroke

3.23 in.

Compression Ratio

9.4-to-1

Air Intake System

Natually Aspirated

Valve Seats

Replaceable

Lifter Type

Hydraulic

Engine Parameters

 

Rated Synchronous RPM

60 Hz, 3600

HP at rated kW

60 Hz, 32

Exhaust System

 

Exhaust Flow at Rated Output 60 Hz

177 cfm

Exhaust Temperature at Rated Output

910° F

Combustion Air Requirements (Natural Gas)

Flow at rated power, 60 Hz

70 cfm

Governor

 

Type

Electronic

Frequency Regulation

Isochronous

Steady State Regulation

± .25%

Adjustments:

 

Speed

Selectable

Engine Lubrication System

 

Type of Oil Pump

Gear

Oil Filter

Full Flow, Cartridge

Crankcase Oil Capacity

4 U.S. qts.

‹ COOLING SYSTEM

Type

Closed

Water Pump

Belt Driven

Fan Speed

2550

Fan Diameter

15 inches

Fan Mode

Pusher

Air Flow (inlet air including alternator and

 

combustion air)

1528 ft3/min.

Coolant Capacity

2.0 U.S. gal.

Heat Rejection to Coolant

107,000 Btu/h

Maximum Operating Air Temp. on Radiator

60° C (150° F)

Maximum Ambient Temperature

50° C (140° F)

‹FUEL SYSTEM

Type of Fuel

.........................................

Natural Gas, Propane Vapor

Carburetor

 

 

Down Draft

Secondary Fuel Regulator

 

Standard

Fuel Shut-off Solenoid

 

Standard

Operating Fuel Pressure

5 in. - 14 in. Water Column

Fuel Consumption - ft3/hr (Natural Gas/LPV)

Exercise

25%

50%

75%

100%

Cycle

Load

Load

Load

Load

 

60/24

124/49

188/75

250/99

515/125

‹ELECTRICAL SYSTEM

Battery Charge Alternator

12V, 15 Amp

Static Battery Charger

2 Amp

Recommended Battery

Group 26, 525CCA

System Voltage

12 Volts

Voltage Regulator

 

Type

Electronic

Sensing

Single-phase

Regulation

± 1%

Features

V/F Adjustable, Adjustable

 

Voltage and Gain LED Indicators

Power Adjustment for Ambient Conditions

Temperature Deration

 

3% for every 10° C above °C

25

1.65% for every 10° above °F

77

Altitude Deration

 

1% for every 100 m above m

182

3% for every 1000 ft. above ft

600

Controller

R-100 (0F7380D - 240V)

 

(0F7381D - 208V)

6-1

09/05 A .Rev GenSpec013

Image 10
Contents Centurion Standby Generator Sets Table of Contents  Warning   Electrical Hazards  Authorized Service Dealer Location ‹ Operation and Maintenance‹ HOW to Obtain Service IntroductionGenerator SET Data Generac Power SYSTEMS, INCIdentification Record ‹ Data LabelEngine OIL Recommendations Equipment DescriptionCoolant Recommendations Engine Protective Devices ‹ Natural GAS Fuel System Fuel System‹ Fuel Requirements ‹ LP Fuel SystemSpecifications ‹ Reconfiguring the Fuel System ‹ Cold Weather KIT‹ 3-PHASE Alternators Alternator Power Winding Connections‹ FOUR-LEAD, SINGLE-PHASE Stator Generator AC Lead ConnectionsPreparation Before START-UP InstallationInitial Inspection for QT Genset Startup ‹ Preparation for START-UP START-UP Checklist‹ START-UP Inspection ‹ Engine START-UP and Transfer Operating Unit with Manual Transfer SwitchGenerator Control Operation ‹ Retransfer and ShutdownCooling System Checking Fluid LevelsMaintenance Owner Operator can Perform ‹ Changing Engine OIL ‹ Changing the Engine AIR Cleaner ‹ Coolant Change‹ Spark Plugs Miscellaneous Maintenance Service Schedule Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Guide Problem Cause CorrectionStandby Generator Sets Standby Generator Sets Page Breaker Tray BACK/BOTTOM Page Assy Rotor 20KW Page Battery Tray C1 CPL Page Mounting Base 1.5L C1 CPL Page Support Radiator LH Side Page ASM Motor Stepper Page ENGINE-1.5L Page Elbow 90D 3/4 NPT Page Roof C1 CPL Page Muffler C1 Page Page Page Page Page Page Standby Generator Sets Warranty