Generac Power Systems 004812-3, Owner'S Manual

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Table of Contents
Standby Generator Sets
1
Introduction ............................... Inside Front Cover
Read This Manual Thoroughly ..................................IFC
Operation and Maintenance ......................................IFC
How to Obtain Service ..............................................IFC
Authorized Service Dealer Locator Number ................ IFC
Safety Rules ............................................................... 2
Section 1 – General Information .......................... 4
1.1 IDENTIFICATION RECORD .................................... 4
1.1.1 Data Label ........................................................ 4
1.2 EQUIPMENT DESCRIPTION................................... 4
1.2.1 Standard Generator Features ........................... 4
1.3 ENGINE PROTECTIVE DEVICES ........................... 4
1.3.1 High Coolant Temperature Switch .................... 4
1.3.2 Low Coolant Level Sensor ................................ 4
1.3.3 Low Oil Pressure Switch................................... 4
1.3.4 Low Fuel Pressure Switch ................................. 4
1.3.5 Overspeed
Shutdown ........................................ 4
1.3.6 Overcrank Shutdown ........................................ 5
1.3.7 RPM Sensor Loss Shutdown ............................ 5
1.4 DC
FUSE ................................................................ 5
1.5 FUEL SYSTEM ....................................................... 5
1.5.1 Fuel Requirements ............................................ 5
1.5.2 Diesel Fuel System ........................................... 5
1.6 SPECIFICATIONS ................................................... 5
1.6.1 Generator ......................................................... 5
1.6.2 Engine .............................................................. 5
1.6.3 Engine Oil Recommendations ........................... 6
1.6.4 Coolant ............................................................. 6
1.6.5 Fuel System Requirements and
Recommendations ............................................ 6
1.7 GENERATOR AC LEAD CONNECTIONS ................ 6
1.7.1 Four-lead,
Single-phase Stator .......................... 6
1.8 GENERATOR AND LOAD COMPATIBILITY ............ 6
1.9 STARTING
AIDS ..................................................... 7
1.9.1 Engine Coolant Heaters .................................... 7
1.9.2 Battery Chargers............................................... 7
Section 2 – Installation ........................................... 7
2.1 STANDBY GENERATOR INSTALLATION ................ 7
2.1.1 NFPA Standards ............................................... 8
2.1.2 Other Published Standards .............................. 8
2.2 BASIC STANDBY ELECTRIC SYSTEM ................... 8
2.3 EMERGENCY CIRCUIT ISOLATION METHOD ....... 8
2.4 TOTAL CIRCUIT ISOLATION METHOD.................. 9
2.5 GROUNDING
THE GENERATOR............................ 9
2.6 GENERATOR AC NEUTRAL CONNECTIONS ......... 9
2.7
TRANSFER SWITCH START SIGNAL
CONNECTIONS ...................................................... 9
2.8 BATTERY INSTALLATION .................................... 10
2.9 PREPARATION BEFORE START-UP ..................... 10
2.9.1 Prior to Initial Start-up ................................... 10
2.9.2 Start-up
Inspection ......................................... 11
Section 3 – Operation ........................................... 12
3.1 GENERATOR CONTROL AND OPERATION ......... 12
3.2
OPERATING UNIT WITH MANUAL
TRANSFER SWITCH ............................................. 12
3.2.1 Engine Start-up and Transfer ......................... 12
3.2.2 Retransfer
and Shutdown ............................... 12
3.3 OPERATING UNIT WITH AUTOMATIC
TRANSFER SWITCH ............................................. 12
Section 4 – Maintenance ...................................... 13
4.1 SERVICE SCHEDULE .......................................... 13
4.1.1 Authorized Operator Maintenance
Functions ........................................................ 13
4.1.2 Authorized Service Technician
Maintenance Functions ................................... 13
4.2 PERIODIC MAINTENANCE ................................... 13
4.2.1 Test Standby Generator System
Operation and Components ............................ 14
4.2.2 Inspect Battery ............................................... 14
4.2.3 Battery Replacement ....................................... 14
4.2.4 Check Fluids .................................................. 14
4.2.5 Inspect Exhaust System ................................. 14
4.2.6 Inspect/Test Fuel Supply System .................... 15
4.3 REPAIR
PARTS ..................................................... 15
4.3.1 How to Order Parts ........................................ 15
Section 5 – Installation Diagram
.............................
16
Section 6 – Electrical Data
...........................................
18
Section 7 – Exploded Views and Parts Lists
......
28
Section 8 – Notes
...............................................................
58
Section 9 – Warranty
........................................................
60