Model Numbers
INSTALLATION DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY
Liquid-cooled, Prepackaged Standby Generators
Not intended for use in critical life support applications
AUTHORIZED SERVICE DEALER LOCATION
OPERATION AND MAINTENANCE
HOW TO OBTAIN SERVICE
INTRODUCTION
Generator
GENERAL HAZARDS
DANGER
Despite the safe design of this generator
Parts of the generator are rotating and/or hot
ELECTRICAL HAZARDS
FIRE HAZARDS
EXPLOSION HAZARDS
1.2 TRANSFER SWITCH
1.1 GENERATOR
1.3 AUTOMATIC SYSTEM OPERATION
1.4 GENERATOR AC CONNECTION SYSTEMS
1.7.1 LOW OIL PRESSURE SWITCH
1.7.2 HIGH COOLANT TEMPERATURE SWITCH
1.7.3 LOW COOLANT LEVEL SWITCH
1.7 ENGINE PROTECTIVE DEVICES
1.8.1 UNPACKING PRECAUTIONS
1.8 UNPACKING
1.9 LIFTING THE GENERATOR
1.7.6 OVERCRANK SHUTDOWN
1.10 SPECIFICATIONS
1.12 RECONFIGURING THE FUEL SYSTEM
1.10.1 GENERATOR SPECIFICATIONS
1.10.2 ENGINE SPECIFICATIONS
1.13 TORQUE SPECIFICATIONS
1.16 BEFORE INSTALLATION
2.1 STANDBY GENERATOR INSTALLATION
1.14 ENGINE OIL RECOMMENDATIONS
2.2 GENERATOR LOCATION
2.3 GENERATOR MOUNTING AND SUPPORT
2.4 BASIC STANDBY ELECTRIC SYSTEM
2.1.1 NFPA STANDARDS
2.9 TRANSFER SWITCH START SIGNAL CONNECTIONS
2.5 EMERGENCY CIRCUIT ISOLATION METHOD
2.6 TOTAL CIRCUIT ISOLATION METHOD
2.7 GROUNDING THE GENERATOR
2.10 BATTERY INSTALLATION
2.11 PREPARATION BEFORE START-UP
2.10.1 VENTED BATTERIES
2.11.1 PRIOR TO INITIAL START-UP
3.1 USING A STANDARD “GTS” TRANSFER SWITCH
2.11.2 TRANSFER SWITCH
2.11.3 FUEL SYSTEM
2.11.4 GENERATOR SET LUBRICATION
3.2.2 AUTO/OFF/MANUAL SWITCH
3.2.3 FAULT INDICATOR LAMP
3.2.6 SET EXERCISE TIME SWITCH
3.2 CONTROL CONSOLE COMPONENTS
4.1 MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES
3.6 ENGINE HEATER
A. EVERY THREE MONTHS
B. ONCE EVERY SIX MONTHS
4.4.2 BATTERY FLUID
4.2 COOLING SYSTEM
4.4 CHECKING FLUID LEVELS
4.3 OVERLOAD PROTECTION FOR ENGINE DC ELECTRICAL SYSTEM
4.5 MAINTENANCE OWNER/ OPERATOR CAN PERFORM
DANGER
4.6 MISCELLANEOUS MAINTENANCE
4.5.11 CHANGING THE ENGINE AIR CLEANER
4.6.1 CLEANING THE GENERATOR
4.5.12 SPARK PLUGS
PERIODIC REPLACEMENT PARTS
4.6.2 BATTERY
4.6.3 BATTERY MAINTENANCE
4.6.4 BATTERY REPLACEMENT
4.7 SCHEDULED MAINTENANCE
Service Maintenance Interval Information
Level
Maintenance
Level
Level
Maintenance
Level
Level
Level
5.1 TROUBLESHOOTING POINTS
PROBLEM
CAUSE
CORRECTION
Generac Power Systems, Inc
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
24 Generac Power Systems, Inc
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Section 7 - Installation Diagram
Generac Power Systems, Inc
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Drawing No. 0E1533-A
Wiring Diagram
26 Generac Power Systems, Inc
Section
GuardianLiquid
Generac Power Systems, Inc
Section 8 - Electrical Data
CUSTOMER CONNECTION 120/240V 1-PHASE
28 Generac Power Systems, Inc
PREPACKAGE TRANSFER SWITCH CONNECTION TS3
Section 8 - Electrical Data
Generac Power Systems, Inc
Section 8 - Electrical Data
WIRE HARNESS
DESCRIPTION
COATING
CARBURETOR ARM
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Mounting Base - Drawing No. 0E0768-B
WELD STUD UNDER ROOF PANEL FOR ACCESS COVER CABLE
USE DOOR LATCH FASTENER TO SECURE GROUND WIRE
32 Generac Power Systems, Inc
Section 9 - Exploded Views and Parts
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 15 kW and 20 kW Generators
Standard Compartment - Drawing No. 0E0771-F
WELD STUD UNDER ROOF FOR ACCESS COVER CABLE
34 Generac Power Systems, Inc
NUT #037337
Section 9 - Exploded Views and Parts
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 25 kW Generators
Acoustic Compartment - Drawing No. 0E0772-H
36 Generac Power Systems, Inc
Section 9 - Exploded Views and Parts
38 39
38 39 40
PANEL LH SIDE GUARDIAN & SPRN
38 Generac Power Systems, Inc
Section 9 - Exploded Views and Parts
WATERPUMP HARDWARE
DESCRIPTION
DESCRIPTION
Section 9 - Exploded Views and Parts
40 Generac Power Systems, Inc
14 12 24 19
29 A
Section 9 - Exploded Views and Parts
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Radiator - Drawing No. 0E0769-J
42 Generac Power Systems, Inc
L.P. VAPOR
Section 9 - Exploded Views and Parts
PORT
DESCRIPTION
DECAL EMISSION CTRL 1.5 NG 2005 10-15KW NATURAL GAS
To Blower Housing
44 Generac Power Systems, Inc
16 30
To Engine Crankshaft
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Alternator - Drawing No. 0A9348-G
46 Generac Power Systems, Inc
STARTER SOLENOID
TO ENGINE BLOCK
DESCRIPTION
Section 9 - Exploded Views and Parts
Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators
Muffler - Drawing No. 0E0773-A
YOUR WARRANTY RIGHTS AND OBLIGATIONS
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
EMISSION CONTROL SYSTEM WARRANTY
EMISSION RELATED PARTS INCLUDE THE FOLLOWING
Section 10 - Warranty
GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIAN
WARRANTY SCHEDULE
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING
PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS