Owner’s Manual
SHOULD ATTEMPT INSTALLATION
Liquid-cooled, Prepackaged Standby Generators
This manual should remain with the unit
OPERATION AND MAINTENANCE
AUTHORIZED SERVICE DEALER LOCATION
HOW TO OBTAIN SERVICE
INTRODUCTION
Guardian Liquid-cooled 25 kW Generator
Table of Contents
Despite the safe design of this generator
GENERAL HAZARDS
Parts of the generator are rotating and/or hot
during operation. Exercise care near running gen- erators
FIRE HAZARDS
ELECTRICAL HAZARDS
EXPLOSION HAZARDS
STANDARDS INDEX
1.1 GENERATOR
1.2 TRANSFER SWITCH
1.3 AUTOMATIC SYSTEM OPERATION
1.4 GENERATOR AC CONNECTION SYSTEMS
1.7.2 HIGH COOLANT TEMPERATURE SWITCH
1.7.1 LOW OIL PRESSURE SWITCH
1.7.3 LOW COOLANT LEVEL SWITCH
Figure 1.4 - Low Oil Pressure Switch
1.7.6 LOW BATTERY
1.10 SPECIFICATIONS
1.8.1 UNPACKING PRECAUTIONS
1.8 UNPACKING
Figure 1.8 - Reconfigure the Fuel System
1.12 RECONFIGURING THE FUEL SYSTEM FOR LP VAPOR
1.11 FUEL CONSUMPTION
1.10.2 GENERATOR
2.1 STANDBY GENERATOR INSTALLATION
1.15 BEFORE INSTALLATION
1.13 ENGINE OIL RECOMMENDATIONS
1.14 COOLANT RECOMMENDATIONS
2.4 BASIC STANDBY ELECTRIC SYSTEM
2.3 GENERATOR MOUNTING AND SUPPORT
2.2 GENERATOR LOCATION
2.1.2 OTHER PUBLISHED STANDARDS
2.5 EMERGENCY CIRCUIT ISOLATION METHOD
2.9 USING AN ENGINEERED “GTS” TRANSFER SWITCH
2.6 TOTAL CIRCUIT ISOLATION METHOD
2.7 GROUNDING THE GENERATOR
Pos2 OFF - Standard Prepackaged ATS Application
2.10 BATTERY INSTALLATION
2.10.1 VENTED BATTERIES
Standby generators installed with automatic
2.11.2 TRANSFER SWITCH
3.1 ENGINEERED GTS TRANSFER SWITCH
2.11 PREPARATION BEFORE START-UP
2.11.1 PRIOR TO INITIAL START-UP
3.2.1 AUTO/OFF/MANUAL SWITCH
3.2.2 FAULT INDICATOR LEDS
3.2.5 SET EXERCISE TIME SWITCH
3.2 CONTROL CONSOLE COMPONENTS
3.2.6 SYSTEM READY LED
3.4 ENGINE GOVERNOR ADJUSTMENTS
3.3 MANUAL TRANSFER AND START-UP
Figure 3.3 - “Set Exercise Time” Switch
Figure 3.2 - Engine Governor Adjustment
3.6 AUTOMATIC OPERATION
3.7 WEEKLY EXERCISE CYCLE
4.1 MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES
3.8 CONTROL BOARD DIP SWITCH SETTINGS
A. EVERY THREE MONTHS
B. ONCE EVERY SIX MONTHS
4.3 INTAKE MANIFOLD PROCEDURE
4.2 EXHAUST MANIFOLD PROCEDURE
4.4 CYLINDER HEAD PROCEDURE
Figure 4.1 - Intake Manifold Installation
4.7 CHECKING FLUID LEVELS
4.8 MAINTENANCE OWNER/ OPERATOR CAN PERFORM
4.6 OVERLOAD PROTECTION FOR ENGINE DC ELECTRICAL SYSTEM
Figure 4.4 - Setting the Spark Plug Gap
4.8.11 CHANGING THE ENGINE AIR CLEANER
4.8.8 CHECK FAN BELT
4.8.9 INSPECT ENGINE GOVERNOR
4.9.1 CLEANING THE GENERATOR
4.9 MISCELLANEOUS MAINTENANCE
4.9.2 BATTERY
4.9.3 BATTERY MAINTENANCE
Service Maintenance Interval Information
4.10 SCHEDULED MAINTENANCE
Turn off the battery charger turn OFF utility supply to ATS
Remove the negative battery cable
Tasks
Maintenance
Level
Maintenance
PROBLEM
TROUBLESHOOTING POINTS
CAUSE
CORRECTION
Guardian Liquid-cooled 25 kW Generator
Section 7 - Electrical Data
Wiring Diagram - 2.5L Engine 15kW & 20kW units -Drawing No. 0F1411
26 Generac Power Systems, Inc
Section 7 - Electrical Data
28 Generac Power Systems, Inc
Section 7 - Electrical Data
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Wiring Diagram - 2.5L Engine 25kW unit -Drawing No. 0E9982-B
Section 7 - Electrical Data
32 Generac Power Systems, Inc
Electrical Schematic - 2.5L 25kW unit - Drawing No. 0E9983-B
Section 7 - Electrical Data
34 Generac Power Systems, Inc
HARNESS WIRE
MOUNT
BLOCK ENGINE
DESCRIPTION
GROUND WIRE
PANEL FOR ACCESS
COVER CABLE
FASTENER TO SECURE
Enclosure - Drawing No. 0E9720-D
38 Generac Power Systems, Inc
HINGE CONTINUOUS 1.5L CTRL PNL
40 Generac Power Systems, Inc
Section 8 - Exploded Views and Parts
Guardian Liquid-cooled 25 kW Generator Engine - Drawing No. 0E9918-E
42 Generac Power Systems, Inc
STEPPER MOTOR UNITS ONLY
TO RADIATOR
GASKET, 2.5L FORD EXHAUST MAN
SOURCE GENERAC-BOSCH GOV
SERPENTINE BELT - 41 3/8 LENGTH
BRKT,D.C. ALTERNATORMACHINED
TO ENGINE
0E1028A I/N
COVER
44 Generac Power Systems, Inc
Section 8 - Exploded Views and Parts
LEADS
LOCKTIGHT
46 Generac Power Systems, Inc
Alternator - Drawing No. 0E8660-C
ROTOR 390 30KW 1P DIRECT HSB 3.0L FORD & 2.5L FORD
ROTOR REPLACEMENT PARTS
STR 390 35AD1 HSB 382MM LONG3.0L FORD & 2.5L FORD
CONDUIT FLEX 1-1/4 30 LG - 3.0L FORD & 3.9L CHRYSLER
SCREW HHC M8-1.25 X 60 G8.8 FT
48 Generac Power Systems, Inc
ITEM 13 NEOPRENE
SECURE WIRE HARNESS
COATING
WITH TIE WRAP AS SHOWN
1024
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SUPPORT,RADIATOR 2.5L FORD
HOSE, UPPER RADIATOR 174MM
Installation Diagram - Drawing No. 0F1020-A
Section 9 - Installation Diagram
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE
YOUR WARRANTY RIGHTS AND OBLIGATIONS
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
EMISSION RELATED PARTS INCLUDE THE FOLLOWING
EMISSION CONTROL SYSTEM WARRANTY
WARRANTY SCHEDULE
GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIAN
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING
GENERAC POWER SYSTEMS, INC P.O. BOX 297 WHITEWATER, WI