Section 1 — General Information

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

1.5 SPECIFICATIONS

‹ 1.5.1 GENERATOR

 

 

Model 04389-1

 

Model 04456-1

Model 04390-1

Rated Max. Continuous Power Capacity (Watts*)

6,000 NG/7,000 LP

 

12,000 NG/12,000 LP

13,000 NG/15,000 LP†

Rated Voltage

120/240

 

120/240

120/240

Rated Max. Continuous Load Current (Amps)

 

 

 

 

 

120 Volts**

50.0 NG/58.3 LP

 

100.0 NG/100.0 LP

108.3 NG/125.0 LP

 

240 Volts

25.0 NG/29.2 LP

 

50.0 NG/50.0 LP

54.2 NG/62.5 LP

Main Line Circuit Breaker

30 Amp

 

50 Amp

60 Amp/70 Amp†

Phase

1

 

1

1

Number of Rotor Poles

2

 

2

2

Rated AC Frequency

60 Hz

 

60 Hz

60 Hz

Power Factor

1

 

1

1

Recommended Air Filter

Generac Part # C8127

Generac Part # C8127

Generac Part # C8127

Battery Requirement

Group 26/26R

 

Group 26/26R

Group 26/26R

 

 

12 Volts and

 

12 Volts and

12 Volts and

 

 

350 Cold-cranking

 

550 Cold-cranking

550 Cold-cranking

 

 

Amperes Minimum

 

Amperes Minimum

Amperes Minimum

Weight

452 Pounds

 

470 Pounds

487 Pounds

Output Sound Level @ 23 ft (7m) at full load

68 db (A)

 

70.5db (A)

71.5 db (A)

Normal Operating Range

 

-20°F (-28.8°C) to 104°F (40°C)

*Maximum wattage and current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Maximum power decreases about 3.5 percent for each 1,000 feet above sea level; and also will decrease about 1 percent for each 6° C (10° F) above 16° C (60° F) ambient temperature.

**Load current values shown for 120 volts are maximum TOTAL values for two separate circuits. The maximum current in each circuit must not exceed the value stated for 240 volts.

† 15,000 watt with upgrade kit 04578-0. Kit includes power harnesses and 70 amp 2-pole circuit breaker.

‹1.5.2 ENGINE

 

Model 04389-1

Model 04456-1

Model 04390-1

Type of Engine

GH-410

GT-990

GT-990

Number of Cylinders

1

2

2

Rated Horsepower

14.5 @ 3,600 rpm

26 @ 3,600 rpm

30 @ 3,600 rpm

Displacement

410cc

992cc

992cc

Cylinder Block

Aluminum w/Cast

Aluminum w/Cast

Aluminum w/Cast

 

Iron Sleeve

Iron Sleeve

Iron Sleeve

Valve Arrangement

Overhead Valves

Overhead Valves

Overhead Valves

Ignition System

Solid-state w/Magneto

Solid-state w/Magneto

Solid-state w/Magneto

Recommended Spark Plug

RC12YC

RC12YC

RC12YC

Spark Plug Gap

0.76 mm (0.030 inch)

0.508 mm (0.020 inch)

0.508 mm (0.020 inch)

Compression Ratio

8.6:1

9.5:1

9.5:1

Starter

12 Vdc

12 Vdc

12Vdc

Oil Capacity Including Filter

Approx. 1.5 Qts

Approx. 1.7 Qts

Approx. 1.7 Qts

Recommended Oil Filter

Generac Part # 70185

Generac Part # 70185

Generac Part # 70185

Recommended Air Filter

Generac Part # 0C8127

Generac Part # 0C8127

Generac Part # 0C8127

Operating RPM

3,600

3,600

3,600

6 Generac® Power Systems, Inc.

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Generac Power Systems 04389-1, 04390-1, 04456-1 owner manual Specifications, ‹ 1.5.1 Generator, ‹ 1.5.2 Engine

04389-1, 04456-1, 04390-1 specifications

Generac Power Systems is synonymous with reliable and innovative power solutions for both residential and commercial applications. Among its diverse product lineup, the Generac 04390-1, 04456-1, and 04389-1 stand out due to their robust features, advanced technologies, and user-focused characteristics.

The Generac 04390-1 is a portable generator designed for versatility and efficiency. It is equipped with a powerful OHV engine that enables it to deliver up to 3500 running watts and 4375 starting watts, making it suitable for various applications, such as home backup during outages or powering tools on job sites. The generator features a built-in PowerRUSH technology, which provides a 40% more starting capacity than traditional models, allowing it to handle more demanding appliances and tools simultaneously. Additionally, its lightweight and compact design enhance portability, complemented by a sturdy handle and flat-free wheels.

Moving on to the Generac 04456-1, this model offers a greater output with 7500 running watts and 9400 starting watts. Ideal for larger homes or work environments, it is powered by a heavy-duty, 420cc engine and designed for optimal performance. The unit incorporates an electric start feature for easy operation and includes a low-oil shutdown system that protects the engine from damage, providing peace of mind to users. The reinforced roll-cage design ensures durability, while its quiet operation keeps noise levels to a minimum, making it suitable for more noise-sensitive environments.

Lastly, the Generac 04389-1 generator is particularly characterized by its dual-fuel capability, allowing users to run it on either gasoline or propane. This flexibility ensures seamless operation in various situations, with 5500 running watts on gasoline and 4950 running watts on propane. The model’s advanced engineering includes an easy-to-read fuel gauge, ensuring that users can monitor fuel levels without hassle. This generator is also equipped with a heavy-duty, full-wrap steel frame for resistance against impacts and wear, making it perfect for outdoor use.

Collectively, the Generac 04390-1, 04456-1, and 04389-1 models embody a commitment to quality and innovation. With their powerful engines, enhanced technologies, and user-friendly features, these generators provide peace of mind through reliable power solutions, catering to a multitude of needs for both residential and commercial users alike. Whether for emergency backup or regular use, Generac’s offerings ensure that power is always on hand when it’s needed the most.