Generac 20kW owner manual ‹ Cold Weather KIT, ‹ Reconfiguring the Fuel System

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Standby Generator Sets

Specifications

Figure 1 — Interconnections

CONTROL PANEL

 

N1

 

 

N2

 

GENERATOR

23

 

194

 

CONNECTION

 

 

CIRCUIT

BOX

183

BREAKER

 

 

178

 

 

Battery

 

 

Charger

 

 

Input

GROUND

 

 

 

120 Volt +

 

 

Neutral

 

 

Grd

 

Ground Level

Concrete Slab STUB-UP AREA

See Install Dwg for

Dimensions

Transfer Switch

 

Utility In

 

 

 

 

 

 

NEUTRAL

TO

 

 

 

ALTERNATOR

 

 

 

 

Gen

 

 

NEUTRAL

N1

 

 

 

N2

 

 

 

23

Load

4- # 14 GA

194

186

WIRES TO

178

Out

GENERATOR

 

 

 

CONNECTION

 

 

 

BOX

 

 

 

 

 

 

TO GENERATOR

 

 

 

CONNECTION BOX

 

To Generator Control Panel

FRAME RAIL

 

 

 

 

CIRCUIT BREAKER SIZE

KW

VOLTS /

AMPS

LUG SIZE

20

240 1 Ø

100

#4 to 1/0

20

208 3 Ø

80

#4 to 1/0

‹COLD WEATHER KIT

For cold climates, optional cold weather kit (part number 0F6148) is recommended. The kit includes:

Battery Warmer

4” Junction Box with hardware

6 qt. pack 5W-30 synthetic oil (engine)

‹RECONFIGURING THE FUEL SYSTEM

NOTE:

All models are configured for natural gas or LP vapor 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 6.2).

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.

09/05 A .Rev GenSpec013

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

11.The Dip switch inside the control panel must be in the LP or NG position when switching to differ- ent fuels.

Figure 6.2 — 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

NOTE:

Port 1 is for NG only and Port 2 is for LP vapor only. No provision for dual fuel has been made.

DANGER

Serious injury or damage may occur if not con- figured properly. Please consult an Authorized Dealer with any questions.

6-2

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Contents Centurion Standby Generator Sets Table of Contents  Warning   Electrical Hazards  Introduction ‹ Operation and Maintenance‹ HOW to Obtain Service Authorized Service Dealer Location‹ Data Label Generac Power SYSTEMS, INCIdentification Record Generator SET DataCoolant Recommendations Equipment DescriptionEngine OIL Recommendations Engine Protective Devices ‹ LP Fuel System Fuel System‹ Fuel Requirements ‹ Natural GAS Fuel SystemSpecifications ‹ Cold Weather KIT ‹ Reconfiguring the Fuel SystemGenerator AC Lead Connections Alternator Power Winding Connections‹ FOUR-LEAD, SINGLE-PHASE Stator ‹ 3-PHASE AlternatorsInitial Inspection for QT Genset Startup InstallationPreparation Before START-UP ‹ START-UP Inspection START-UP Checklist‹ Preparation for START-UP ‹ Retransfer and Shutdown Operating Unit with Manual Transfer SwitchGenerator Control Operation ‹ Engine START-UP and TransferChecking Fluid Levels Cooling SystemMaintenance Owner Operator can Perform ‹ Spark Plugs ‹ Changing the Engine AIR Cleaner ‹ Coolant Change‹ Changing Engine OIL Miscellaneous Maintenance Service Maintenance Interval Information Service ScheduleLevel Maintenance Level Problem Cause Correction Troubleshooting GuideStandby 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