Generac Power Systems 004988-1 owner manual Table of Contents

Page 3

Table of Contents

Guardian Liquid-cooled 27 kW and 30 kW Generators

INTRODUCTION

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

4

1.6

Generator Fuel System

5

1.7

Engine Protective Devices

5

1.8

Unpacking

6

1.9

Lifting the Generator

6

1.10

Specifications

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

Standby Generator Installation

8

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

9

2.6

Total Circuit Isolation Method

10

2.7

Grounding the Generator

10

2.8

Generator AC Neutral Connections

10

2.9

Transfer Switch Start Signal Connections

10

2.10

Battery Installation

11

2.11

Preparation Before Start-Up

11

Section 3 — OPERATION

12

3.1

Using a Standard “GTS” Transfer Switch

12

3.2

Control Console Components

12

3.3

Manual Transfer and Startup

13

3.4

Engine Governor Adjustments

13

3.5

Retransfer and Shutdown

14

3.6

Automatic Operation

14

3.7

Weekly Exercise Cycle

14

Section 4 — MAINTENANCE

15

4.1Maintenance Performed by Authorized

Service Facilities

15

4.2 Cooling System

15

4.3Overload Protection for Engine DC

Electrical System

15

4.4 Checking Fluid Levels

15

4.5Maintenance Owner/Operator

 

Can Perform

16

4.6

Miscellaneous Maintenance

17

4.7

Scheduled Maintenance

19

Section 5 — TROUBLESHOOTING

22

Section 6

— INTALLATION DIAGRAM

............23

Section 7

— ELECTRICAL DATA

24

Section 8

— EXPLODED VIEWS AND

 

 

 

 

PARTS LISTS

28

Section 9

— NOTES

44

Section 10 — WARRANTY

Back Cover

Generac® Power Systems, Inc. 1

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Contents Liquid-cooled, Prepackaged Standby Generators Introduction Authorized Service Dealer Location‹ Operation and Maintenance ‹ HOW to Obtain ServiceTable of Contents General Hazards Electrical Hazards Generator AC Connection Systems Transfer SwitchGenerator Automatic System OperationEngine Protective Devices ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.1 LOW OIL Pressure Switch ‹ 1.7.3 LOW Coolant Level SwitchLifting the Generator Unpacking‹ 1.10.2 Engine Specifications SpecificationsReconfiguring the Fuel System ‹ 1.10.1 Generator SpecificationsCoolant Recommendations Torque SpecificationsBefore Installation Engine OIL RecommendationsEmergency Circuit Isolation Method Generator Mounting SupportBasic Standby Electric System Generator LocationGenerator AC Neutral Connections Transfer Switch Signal ConnectionsTotal Circuit Isolation Method Grounding the Generator‹ 2.11.1 Prior to Initial START-UP Battery Installation‹ 2.11.2 Transfer Switch Preparation Before START-UPControl Console Components Using a Standard GTS Transfer Switch‹ 3.2.6 System Ready LED Manual Transfer START-UP Engine Governor Adjustments‹ 3.2.2 Fault Indicator LED ‹ 3.2.5 SET Exercise Time SwitchWeekly Exercise Cycle Retransfer and ShutdownAutomatic Operation Overload Protection for Engine DC Electrical System Checking Fluid LevelsCooling System ‹ 4.5.3 Exercise System ‹ 4.5.2 Check Battery‹ 4.4.3 Engine Coolant ‹ 4.5.1 Check Engine OIL Level‹ 4.5.13 Coolant Change Miscellaneous Maintenance‹ 4.5.11 Changing the Engine AIR Cleaner ‹ 4.6.1 Cleaning the Generator‹ 4.6.4 Battery Replacement ‹ 4.6.3 Battery MaintenanceService Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsInstallation Diagram Customer Connection PCB J2 ICT LOS WLS HCT Starter Carrier Bolt Hold Down Battery Boot Battery CableBattery Post Cover Baclk Battery Post Cover RED +32 18 Duct Discharge RH Front Assy GRD Wire 99HSBAssembly BASE-DOOR Ground Wire Intake Duct HSBGenerac Power Systems, Inc Cover TOP Panel HSB Assy 2A 12V UL BatteryControl BOX HSB Cover Front Panel HSB512 Bracket DC ALT 3.0L Ford Wire SET 3.0L Ford notNot SHOWN-USED to Hold OIL Drain Assembly Washer Lock M12Frame Side Support Radiator HSB Tank Coolant RecoveryRadiator R-IN,L-OUT Venturi 3.0L Ford HSBNER Washer Flat 5/16 Zinc Weldment Mounting BaseFlange Fuel Inlet Assy Regulator 3.0L NG or LPVLeads Rotor 390 40KW 1P Direct HSB 3.9L Chrysler Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 25KW 1P Direct HSB 2.5L FordWasher Lock 3/8 SS MUFFLER, 3.0L FordGasket Exhaust Ring Mufflr Strap 6IN DIA HSBWasher Flat M5 ELEMENT, AIR CleanerCover AIR Cleaner Tube AIR Intake 3.0L FordGuardian Liquid-cooled 27 kW and 30 kW Generators Guardian Liquid-cooled 27 kW and 30 kW Generators This Warranty Shall not Apply to the Following

004988-1 specifications

Generac Power Systems has established itself as a leader in the generator industry, and the Generac Power Systems 004988-1 model exemplifies the company’s commitment to innovation, reliability, and performance. This standby generator is designed to provide seamless power solutions for both residential and commercial applications, ensuring that users remain connected and comfortable even during power outages.

One of the standout features of the 004988-1 model is its automatic transfer switch (ATS), which allows for instant power restoration within seconds of an outage. The ATS continuously monitors the electrical supply and automatically engages the generator when it detects a power failure, eliminating any stress or inconvenience for the user. This feature is particularly beneficial for those who may be away from home during an outage or for businesses that cannot afford downtime.

The 004988-1 is equipped with a powerful engine capable of delivering up to 20 kilowatts of backup power, sufficient to support essential household appliances and systems, such as HVAC, refrigeration, and lighting. Its robust construction ensures durability and longevity, equipped to withstand the rigors of extended use in various environmental conditions.

Another significant characteristic of this model is its emission-friendly design. Generac has incorporated advanced technologies to meet and exceed EPA standards, resulting in a cleaner and more environmentally friendly operation. The generator runs on natural gas or liquid propane, providing users with flexible fuel options and reducing dependency on traditional fuel sources.

Moreover, the 004988-1 comes with smart technology features, including Wi-Fi connectivity. This allows users to monitor and control their generator remotely via a smartphone app. Users can receive real-time notifications, monitor power usage, and conduct maintenance checks, ensuring peak performance of their generator.

The quiet operation of the 004988-1 is also noteworthy, making it an attractive option for residential areas where noise levels can be a concern. Generac has integrated sound-dampening technology, ensuring that the generator operates with minimal noise, allowing users to enjoy peace of mind without disruption.

In summary, the Generac Power Systems 004988-1 is a robust, reliable, and technologically advanced generator that seamlessly integrates into any household or commercial setup. With its automatic transfer switch, high power output, environmentally friendly design, smart technology features, and quiet operation, it stands out as an excellent choice for individuals seeking a dependable power solution for any situation.
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