6 Generac
®
Power Systems, Inc.
Section 1 — General Information
Centurion 11, 13 and 15 kW Air-cooled Generators
1.5 SPECIFICATIONS
1.5.1 GENERATOR
Model 005011 Model 004666
Rated Max. Continuous Power Capacity (Watts*) 11,000 NG/ 11,000 LP 13,000 NG/ 15,000 LP†
Rated Voltage 120/240 120/240
Rated Max. Continuous Load Current (Amps)
120 Volts** 91.6 NG/91.6 LP 108.3 NG/125.0 LP
240 Volts 45.8 NG/45.8 LP 54.2 NG/62.5 LP
Main Line Circuit Breaker 45 Amp 60 Amp/70 Amp†
Phase 1 1
Number of Rotor Poles 2 2
Rated AC Frequency 60 Hz 60 Hz
Power Factor 1 1
Battery Requirement Group 26/26R 12 Volts and 550 Group 26/26R 12 Volts and 550
Cold-cranking Amperes Minimum Cold-cranking Amperes Minimum
Weight 470 Pounds 487 Pounds
Output Sound Level 70.5 db (A) 71.5 db (A)
Normal Operating Range -20°F (28.8°C to 104°F (40°C) -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 04578-1. Kit included power harness and 70 amp 2-pole circuit breaker.
1.5.2 ENGINE
Model 005011 Model 004666
Type of Engine GT-990 GT-990
Number of Cylinders 2 2
Rated Horsepower 26 @ 3,600 rpm 26 @ 3,600 rpm
Displacement 992cc 992cc
Cylinder Block Aluminum w/Cast Iron Sleeve Aluminum w/Cast Iron Sleeve
Valve Arrangement Overhead Valves Overhead Valves
Ignition System Solid-state w/Magneto Solid-state w/Magneto
Recommended Spark Plug RC12YC RC12YC
Spark Plug Gap 0.50 mm (0.020 inch) 0.50 mm (0.020 inch)
Compression Ratio 9.5:1 9.5:1
Starter 12 Vdc 12 Vdc
Oil Capacity Including Filter Approx. 1.7 Qts Approx. 1.7 Qts
Recommended Oil Filter Generac Part # 70185 Generac Part # 70185
Recommended Air Filter Generac Part # 0C8127 Generac Part # 0C8127
Operating RPM 3,600 3,600
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