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Table of Contents
Centurion Liquid-cooled 15 kW and 25 kW Generators
Generac
®
Power Systems, Inc. 1
Introduction................................Inside Front Cover
Read This Manual Thoroughly ............................IFC
Operation and Maintenance ................................IFC
How to Obtain Service..........................................IFC
Authorized Dealer Locator Number ........................IFC
Safety Rules................................................................2
Section 1 – General Information ..........................4
1.1 Generator ..........................................................4
1.2 Transfer Switch ................................................4
1.3 Automatic System Operation ............................4
1.4 Generator AC Connection Systems....................4
1.5 Main Circuit Breaker ........................................5
1.6 Generator Fuel System ......................................5
1.7 Engine Protective Devices..................................5
1.7.1 Low Oil Pressure Switch ......................5
1.7.2 High Coolant Temperature Switch ........5
1.7.3 Low Coolant Level Switch ....................6
1.7.4 Overspeed Shutdown............................6
1.7.5 PCB Operation LED’s............................6
1.7.6 Overcrank Shutdown............................6
1.8 Unpacking ........................................................6
1.8.1 Unpacking Precautions ........................6
1.8.2 Inspection ............................................6
1.9 Lifting the Generator ........................................6
1.10 Specifications ....................................................7
1.10.1 Generator..............................................7
1.10.2 Engine ..................................................7
1.11 Fuel Consumption ............................................7
1.12 Reconfiguring the Fuel System ..........................7
1.13 Torque Specifications........................................8
1.14 Engine Oil Recommendations............................8
1.15 Coolant Recommendations................................8
1.16 Before Installation ............................................8
Section 2 — INSTALLATION ......................8
2.1 Generator Installation ......................................8
2.1.1 NFPA Standards....................................9
2.1.2 Other Published Standards ..................9
2.2 Generator Location............................................9
2.3 Generator Mounting and Support ....................9
2.4 Basic Standby Electric System ..........................9
2.5 Emergency Circuit Isolation Method................10
2.6 Total Circuit Isolation Method ........................10
2.7 Grounding the Generator ................................10
2.8 Generator AC Neutral Connections..................11
2.9 Transfer Switch Start Signal Connections ......11
2.10 Battery Installation..........................................11
2.10.1 Vented Batteries..................................11
2.11 Preparation Before Start-Up ............................12
2.11.1 Prior to Initial Start-up ......................12
2.11.2 Transfer Switch ..................................12
2.11.3 Fuel System ........................................12
2.11.4 Generator Set Lubrication ..................12
2.11.5 Engine Coolant....................................12
2.11.6 Belt Tension........................................12
2.11.7 Electrical System ................................12
Section 3 — OPERATION..........................13
3.1 Using a Standard “GTS” Transfer Switch........13
3.2 Control Console Components..........................13
3.2.1 Hourmeter ..........................................13
3.2.2 Auto/Off/Manual Switch ......................13
3.2.3 Fault Indicator Lamp ..........................13
3.2.4 15 Amp Fuse ......................................13
3.2.5 7.5 Amp Inline Fuse............................14
3.2.6 Set Exercise Time Switch....................14
3.3 Manual Transfer and Start-up ........................14
3.4 Automatic Operation ......................................14
3.5 Weekly Exercise Cycle......................................14
3.6 Engine Block Heater........................................14
Section 4 — MAINTENANCE ....................15
4.1 Maintenance Performed by
Authorized Service Facilities............................15
4.2 Cooling System................................................15
4.3 Overload Protection for Engine
DC Electrical System ......................................15
4.4 Checking Fluid Levels ....................................15
4.4.1 Check Engine Oil ................................15
4.4.2 Battery Fluid ......................................16
4.4.3 Engine Coolant....................................16
4.5 Maintenance Owner/Operator Can Perform ....16
4.5.1 Check Engine Oil Level ......................16
4.5.2 Check Battery ....................................16
4.5.3 Exercise System..................................16
4.5.4 Inspect Cooling System ......................16
4.5.5 Perform Visual Inspection ..................16
4.5.6 Inspect Exhaust System......................16
4.5.7 Check Fan Belt....................................16
4.5.8 Inspect Engine Governor ....................16
4.5.9 Changing Engine Oil ..........................16
4.5.10 Changing the Engine Air Cleaner ........17
4.5.11 Spark Plugs ........................................17
4.5.12 Coolant Change ..................................17
4.6 Miscellaneous Maintenance ............................17
4.6.1 Cleaning the Generator ......................17
4.6.2 Battery ................................................18
4.6.3 Battery Maintenance ..........................18
4.6.4 Battery Replacement ..........................18
4.6.5 Rodent Protection ..............................18
4.7 Out of Service Procedure ................................19
4.7.1 Removal From Service ........................19
4.7.2 Return to Service ................................19
4.8 Fuel Pipe Sizing ..............................................19
4.9 Scheduled Maintenance ..................................20
Section 5 — TROUBLESHOOTING ..........23
5.1 Troubleshooting Points....................................23
Section 6 — NOTES..................................24
Section 7 — INSTALLATION DIAGRAM....25
Section 8 — ELECTRICAL DATA ..............26
Section 9 — EXPLODED VIEWS AND
PARTS LISTS ......................30
Section 10 — WARRANTY .......................48