Generac Power Systems 04389-3, 04456-3, 04390-3 owner manual  Warning 

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IMPORTANT SAFETY INSTRUCTIONS

Air-cooled 7 kW, 12 kW and 15 kW Generators

SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation

be copied and posted near the unit’s installation site. Safety should be stressed to all opera- tors and potential operators of this equipment.

WARNING:

The engine exhaust from this product contains chemicals known to the state

of California to cause cancer, birth defects or other reproductive harm.

WARNING:

 

This product contains or emits chemicals

 

 

known to the state of California to cause

 

cancer, birth defects or other reproductive harm.

Study these SAFETY RULES carefully before install- ing, operating or servicing this equipment. Become familiar with this Owner’s Manual and with the unit. The generator can operate safely, efficiently and reliably only if it is properly installed, operated and maintained. Many accidents are caused by failing to follow simple and fundamental rules or precautions.

The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The warn- ings in this manual, and on tags and decals affixed to the unit are, therefore, not all-inclusive. If using a procedure, work method or operating technique the manufacturer does not specifically recommend, ensure that it is safe for others. Also make sure the procedure, work method or operating technique uti- lized does not render the generator unsafe.

DANGER

Despite the safe design of this generator, operating this equipment imprudently, neglecting its maintenance or being careless can cause possible injury or death. Permit only responsible and capable persons to operate or maintain this equipment.

Potentially lethal voltages are generated by these machines. Ensure all steps are taken to render the machine safe before attempting to work on the generator.

Parts of the generator are rotating and/or hot during operation. Exercise care near running generators.

GENERAL HAZARDS

For safety reasons, the manufacturer recommends that the installation, initial start-up and main- tenance of this equipment is carried out by an Authorized Dealer.

The engine exhaust fumes contain carbon monox- ide, which can be DEADLY. This dangerous gas, if breathed in sufficient concentrations, can cause unconsciousness or even death. This exhaust system must be installed properly, in strict com- pliance with applicable codes and standards. Following installation, do nothing that might ren- der the system unsafe or in noncompliance with such codes and standards.

Keep hands, feet, clothing, etc., away from drive belts, fans, and other moving or hot parts. Never remove any drive belt or fan guard while the unit is operating.

Adequate, unobstructed flow of cooling and venti- lating air is critical to correct generator operation. Do not alter the installation or permit even partial blockage of ventilation provisions, as this can seri- ously affect safe operation of the generator. The generator MUST be installed outdoors.

When working on this equipment, remain alert at all times. Never work on the equipment when physically or mentally fatigued.

Inspect the generator regularly, and contact the nearest Authorized Dealer for parts needing repair or replacement.

Before performing any maintenance on the gen- erator, disconnect its battery cables to prevent accidental start up. Disconnect the cable from the battery post indicated by a NEGATIVE, NEG or (–) first. Reconnect that cable last.

Never use the generator or any of its parts as a step. Stepping on the unit can stress and break parts, and may result in dangerous operating con- ditions from leaking exhaust gases, fuel leakage, oil leakage, etc.

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Contents US Listed Introduction Authorized Dealer LocationPost Installation Start-up Adjustments MaintenanceTroubleshooting Introduction Inside Front Cover Warning   Electrical Hazards  ‹ Standards IndexProtection Systems UNPACKING/INSPECTIONBreaker for Bedrooms Generator Gfci‹ 1.5.1 Generator Specifications‹ 1.5.2 Engine Reconfiguring the Fuel System System SET LEDFuel Requirements Recommendations Fuel Consumption‹ 1.9.2 12KW and 15KW, V-TWIN Engines Location‹ 1.10.1 Generator Battery Installation Battery‹ 1.10.2 Transfer Switch 10.2.1 7 kW, 12 kW and 15 kW UnitsBefore Initial START-UP Check Transfer Switch OperationElectrical Checks Generator Tests Under Load Checking Automatic OperationAdjusting the Regulator Natural GAS only Adjustment Screw‹ 2.7.2 12 KW and 15 KW Units Engine Governor Adjustment‹ 2.7.1 7 KW Units BREAK-IN Procedure Voltage Regulator Adjustment‹ 3.2.1 Auto Position ‹ 3.3.1 12 VDC Accessory Outlet Automatic Transfer OperationSequence of Automatic Operation ‹ 3.2.2 OFF Position‹ 3.5.2 Transfer Back to Utility Power Source Manual Transfer OperationSetting the Exercise Timer ‹ 3.7.2 High Temperature Switch‹ 3.7.1 LOW OIL Pressure Switch ‹ 3.7.3 OvercrankChecking the Engine OIL Level Fuses‹ 3.7.4 Overspeed ‹ 4.3.2 OIL Change Procedure Changing the Engine OILChanging the OIL Filter ‹ 4.3.1 Engine OIL RecommendationsBattery Maintenance Spark PlugsValve Clearance Cooling SystemOUT of Service Procedure ‹ 4.12.1 Removal from Service‹ 4.12.2 Return to Service Corrosion ProtectionService Schedule Be performed by the nearest Authorized DealerTroubleshooting Guide Problem Cause CorrectionAir-cooled 7 kW, 12 kW and 15 kW Generators Air-cooled 7 kW, 12 kW and 15 kW Generators Air-cooled 7 kW, 12 kW and 15 kW Generators Electrical Data Customer Connection Battery 1VA Engine Wiring Control Panel BOX Electronic Voltage Regulator Utility Electrical Data Electrical Data Electrical Data Electrical Data ATS N1A N2A Exploded Views and Parts Lists Part NO. QTY. Description Exploded Views and Parts Lists Part NO. QTY Description Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists COVER, 12 Circuit GTS Load Center 1310 Sleeve 124 125 139 136 135 123 120 137 143 133 134 132 KNOB, AIR Cleaner Exploded Views and Parts Lists QTY 32 31 Stator 12KW Exploded Views and Parts Lists PIN, Piston D20 Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome 7KW Mounting Dimensions MANUFACTURER’S Emission Control System Warranty Coverage Your Warranty Rights and ObligationsPURCHASER’S/OWNER’S Warranty Responsibilities Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule

04389-3, 04456-3, 04390-3 specifications

Generac Power Systems has established itself as a leading name in power generation equipment, and models 04389-3, 04456-3, and 04390-3 exemplify the company’s commitment to reliability and technology. These models are particularly popular among homeowners and businesses that need dependable backup power solutions.

The Generac 04389-3 is a 22 kW standby generator designed to provide seamless power during outages. It boasts a powerful 999cc engine that can handle heavy loads, making it suitable for larger homes or commercial settings. The generator features Generac’s patented True Power Technology, which ensures clean and stable power delivery, making it safe for sensitive electronics. It also comes equipped with an innovative shutdown system that prevents damage during low oil conditions and features a five-year limited warranty for added peace of mind.

Similarly, the 04456-3 model also serves as a robust standby generator, offering 24 kW of power output. This model highlights an advanced alternator that provides a reliable source of energy for running essential appliances like refrigerators, air conditioners, and heating systems. The 04456-3 includes an automatic exercise mode, allowing it to run tests periodically to ensure it’s always ready to operate when needed. Additionally, it utilizes a user-friendly digital controller that simplifies monitoring and operational management.

The Generac 04390-3 model offers a slightly lower output at 20 kW but retains high efficiency and reliability. Like its counterparts, it features an innovative design that operates quietly while delivering consistent power. This model is particularly aimed at residential users who require dependable backup solutions without the noise commonly associated with generators. It incorporates Generac’s Smart Management modules, enabling users to manage power loads effectively and avoid overloading the system.

All three models benefit from Generac’s Mobile Link technology, which enables remote monitoring via mobile devices. This feature allows users to check the status of their generators, including maintenance alerts and operational history, providing a convenient way to manage energy needs. In summary, Generac models 04389-3, 04456-3, and 04390-3 offer cutting-edge features, dependable technology, and robust capabilities, making them an ideal choice for anyone seeking reliable backup power solutions.