Generac Power Systems 004988-1 Control Console Components, Using a Standard GTS Transfer Switch

Page 14

Section 3 — Operation

Guardian Liquid-cooled 27 kW and 30 kW Generators

‹2.11.4 GENERATOR SET LUBRICATION

Check the engine crankcase oil level before operating and add oil to the proper level – the dipstick “FULL” mark. Never operate the engine with the oil level below the dipstick “ADD” mark. See “Specifications” (Section 1.10) and “Engine Oil Recommendations” (Section 1.14).

NOTE:

This engine is shipped from the manufacturer with 5W-20 oil. This oil should be changed after 30 hours of operation.

‹2.11.5 ENGINE COOLANT

Have the engine cooling system properly filled with the recommended coolant mixture. Check the system for leaks and other problems. See “Specifications” (Section 1.10) and “Coolant” (Section 1.15).

‹2.11.6 BELT TENSION

Check the engine fan belt tension and condition prior to placing the unit into service and at recommended intervals. Belt tension is correct when a force of approximately 22 pounds (10 kg), applied midway between pulleys, deflects the belt about 3/8- to 5/8- inch (10 to 16 mm).

‹2.11.7 ELECTRICAL SYSTEM

Make sure the generator is properly connected to an approved earth ground and/or ground rod.

Make sure the generator battery is fully charged, prop- erly installed and interconnected, and ready for use.

Check to ensure that there are no loose electrical con- nections. Restrain any loose wires to keep them clear of any moving generator set components.

•The control board WILL monitor all engine condi- tions and shut down on all the faults listed in this document.

Pos2 OFF — ATS Application

•The control board will perform all of the automat- ic features listed in this document.

•The two-wire start connections should NOT be used.

GTS Mode Operation

When in GTS mode, the control board will respond as follows based on the AUTO/OFF/MANUAL switch position.

OFF — The generator will not start and run in this position.

MANUAL — The control board will start and run the generator whenever the switch is in the manual posi- tion.

AUTO — The control board will monitor the two-wire start circuit. When a two-wire start is issued the con- trol board will immediately start and run the genera- tor. Whe the two-wire start is removed the control board will immediately stop the generator.

NOTE:

If the generator is installed in conjunction with a standard GTS type transfer switch, refer to the applicable transfer switch manual for exact oper- ating parameters and timing sequences.

3.2CONTROL CONSOLE

COMPONENTS

The components of a home standby generator control console (Figure 3.1) are as follows:

‹3.2.1 AUTO/OFF/MANUAL SWITCH

Use this three-position switch as follows:

3.1USING A STANDARD “GTS”

TRANSFER SWITCH

When required, the pre-packaged standby generator can be installed with a standard Generac “GTS” type automatic transfer switch.

In this application, the GTS is responsible for utility sensing, weekly exercising, and load transferring.

Position two of the four-position dip switch is used to turn over this control to the GTS.

Pos2 ON — GTS Application

•The control board will NOT monitor utility.

•The control board will NOT perform a weekly exer- cise. (The five red LEDs will not flash in this mode.)

•The control board will NOT activate the transfer output.

12 Generac® Power Systems, Inc.

•Set the switch to AUTO for fully automatic opera- tion. See “Automatic Operation” (Section 3.5).

•Set switch to MANUAL position to crank and start the generator engine.

•Set switch to OFF position to shut down an oper- ating engine. With OFF selected, operation will not be possible.

DANGER

With switch set to AUTO, engine can crank and

!start suddenly without warning. Such automat- ic start up normally occurs when utility source voltage drops below a pre-set level. To prevent possible injury that might be caused by such sudden starts, set AUTO/OFF/MANUAL switch to OFF before working on or around the unit. Then, place a “DO NOT OPERATE” tag on con- trol console.

Page 13 Page 15
Image 14
Page 13 Page 15
Contents Liquid-cooled, Prepackaged Standby Generators ‹ HOW to Obtain Service Authorized Service Dealer Location‹ Operation and Maintenance IntroductionTable of Contents General Hazards Electrical Hazards Automatic System Operation Transfer SwitchGenerator Generator AC Connection Systems‹ 1.7.3 LOW Coolant Level Switch ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.1 LOW OIL Pressure Switch Engine Protective DevicesUnpacking Lifting the Generator‹ 1.10.1 Generator Specifications SpecificationsReconfiguring the Fuel System ‹ 1.10.2 Engine SpecificationsEngine OIL Recommendations Torque SpecificationsBefore Installation Coolant RecommendationsGenerator Location Generator Mounting SupportBasic Standby Electric System Emergency Circuit Isolation MethodGrounding the Generator Transfer Switch Signal ConnectionsTotal Circuit Isolation Method Generator AC Neutral ConnectionsPreparation Before START-UP Battery Installation‹ 2.11.2 Transfer Switch ‹ 2.11.1 Prior to Initial START-UPUsing a Standard GTS Transfer Switch Control Console Components‹ 3.2.5 SET Exercise Time Switch Manual Transfer START-UP Engine Governor Adjustments‹ 3.2.2 Fault Indicator LED ‹ 3.2.6 System Ready LEDAutomatic Operation Weekly Exercise CycleRetransfer and Shutdown Cooling System Overload Protection for Engine DC Electrical SystemChecking Fluid Levels ‹ 4.5.1 Check Engine OIL Level ‹ 4.5.2 Check Battery‹ 4.4.3 Engine Coolant ‹ 4.5.3 Exercise System‹ 4.6.1 Cleaning the Generator Miscellaneous Maintenance‹ 4.5.11 Changing the Engine AIR Cleaner ‹ 4.5.13 Coolant Change‹ 4.6.3 Battery Maintenance ‹ 4.6.4 Battery ReplacementScheduled Maintenance Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Points Problem Cause CorrectionInstallation Diagram Customer Connection PCB J2 ICT LOS WLS HCT Starter Carrier Bolt Battery Post Cover RED + Boot Battery CableBattery Post Cover Baclk Hold Down Battery32 18 Intake Duct HSB Assy GRD Wire 99HSBAssembly BASE-DOOR Ground Wire Duct Discharge RH FrontGenerac Power Systems, Inc Cover Front Panel HSB Assy 2A 12V UL BatteryControl BOX HSB Cover TOP Panel HSB512 Washer Lock M12 Wire SET 3.0L Ford notNot SHOWN-USED to Hold OIL Drain Assembly Bracket DC ALT 3.0L FordFrame Venturi 3.0L Ford HSB Tank Coolant RecoveryRadiator R-IN,L-OUT Side Support Radiator HSBNER Assy Regulator 3.0L NG or LPV Weldment Mounting BaseFlange Fuel Inlet Washer Flat 5/16 ZincLeads Rotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 40KW 1P Direct HSB 3.9L ChryslerMufflr Strap 6IN DIA HSB MUFFLER, 3.0L FordGasket Exhaust Ring Washer Lock 3/8 SSTube AIR Intake 3.0L Ford ELEMENT, AIR CleanerCover AIR Cleaner Washer Flat M5Guardian 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.
Top Page Image Contents