Engine
Engine Manufacturer
Generac
Cylinder Liners
8
Engine Type
V
Displacement
543 Cu In(8.9 L)
Bore
4.49 in (114.3 mm)
Stroke
4.25 in (107.95 mm)
Compression Ratio
9.9:1
Ignition
High Energy
Cooling
Pressurized Closed Recovery | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension
Engine Power
Horsepower at Rated kW: 122 hp | Single-Phase 120/240 VAC @1.0pf: 80 kW / 333 Amps | Three-Phase 120/208 VAC @0.8pf: 80 kW / 278 Amps | Three-Phase 120/240 VAC @0.8pf: 80 kW / 241 Amps | Three-Phase 277/480 VAC @0.8pf: 80 kW / 120 Amps | Three-Phase 346/600 VAC @0.8pf: 80 kW / 96 Amps
Intake Design
Intake Air Method: Naturally Aspirated
Governor
Electronic
Fuel System
Fuel Type
Natural Gas, Propane Vapor
Fuel System
Carburator: Down Draft | NPT Fuel Connection on Frame | Primary and Secondary Fuel Shutoff
Fuel Usage, 100% Load
Natural Gas 25%: 415.0 scfh (11.7 m3/hr) | Natural Gas 50%: 720.0 scfh (20.4 m3/hr) | Natural Gas: 989.0 scfh (28.0 m3/hr) | Natural Gas 100%: 1,247.0 scfh (35.3 m3/hr) | Propane Vapor 25%: 191.0 scfh (5.4 m3/hr) | Propane Vapor 50%: 298.0 scfh (8.4 m3/hr) | Propane Vapor 75%: 409.0 scfh (11.5 m3/hr) | Propane Vapor 100%: 519.0 scfh (14.7 m3/hr) | Propane Liquid 25%: 4.0 gph (15.1 Lph) | Propane Liquid 50%: 7.6 scfh (28.8 Lph) | Propane Liquid 75%: 10.5 gph (39.7 Lph ) | Propane Liquid 100%: 13.6 gph (51.5 Lph)
Battery
Battery
Size: See Battery Index 0161970SBY | Voltage: 12 VDC
Battery Charger Input
Charger Alternator: Standard
Electric
Electrical
System Voltage: 12 VDC | Ground Polarity. Negative
Alternator
Standard Model: K0080124Y21 | Poles: 4 | Field Type: Revolving | Insulation Class - Rotor: H | Insulation Class - Stator: H | Total Harmonic Distortion: <5% (3-Phase) | Telephone Interference Factor (TIF): <50 | Standard Excitation: Synchronous Brushless | Bearings: Sealed Ball | Coupling: Direct Drive | Voltage Regulator Type: Full Digital | Regulation Accuracy (Steady State): ±0.25% | UL2200 GENprotect™ | Class H Insulation Material | 2/3 Pitch | Skewed Stator | Brushless Excitation | Sealed Bearings | Amortisseur Winding | Full Load Capacity Alternator
Operational
Operating Conditions
Frequency Regulation (Steady State): ±0.25%
Operating Speed
Rated Engine: 1,800 RPM | Piston: 1,275 ft/min (389 m/min)
Operating Temperature, Maximum
Maximum Operating Ambient Temperature: 122 °F (50 °C) | Maximum Operating Ambient Temperature (Before Derate): See Bulletin No. 0199270SSD | Exhaust Temp (Rated Output - Post Catalyst): 1,288 °F (698 °C)
Hydraulics
Pump Type
Oil: Gear
Oil Filter
Type: Full-Flow Spin-On Cartridge
Hydraulic Flow
Coolant Flow: 27.5 gal/min (104.1 L/min) | Flow at Rated Power: 185.0 scfm (5.2 m3/min)
Airflow
Air Flow (Fan Air Flow Across Radiator): 6,107 scfm (173 m3/min)
Maximum Pressure
Operating Fuel Pressure: 11 - 14 in H2O (2.7 - 3.5 kPa) | Optional Operating Fuel Pressure: 7 - 11 in GH2O (1.7 - 2.7 kPa) | Maximum Radiator Backpressure: 0.5 in H2O (0.12 kPa) | BMEP: 99.9 psi (689 kPa) | Maximum Exhaust Backpressure: 0.75 inHg (2.54 kPa)
Dimensions
Dimensions
Fan Diameter: 22 in (558.8 mm)
Length
Open Set: 94.2 in (2,394 mm) | Weather Protected Enclosure: 111.8 in (2,840 mm) | Level 1 Acoustic Enclosure: 129.4 in (3,287 mm) | Level 2 Acoustic Enclosure: 111.8 in (2,840 mm)
Width
Open Set: 40.0 in (1,016 mm) | Weather Protected Enclosure: 40.5 in (1,028 mm) | Level 1 Acoustic Enclosure: 40.5 in (1,028 mm) | Level 2 Acoustic Enclosure: 40.5 in (1,028 mm)
Height
Open Set: 47.6 in (1,208 mm) | Weather Protected Enclosure: 56.2 in (1,427 mm) | Level 1 Acoustic Enclosure: 56.2 in (1,427 mm) | Level 2 Acoustic Enclosure: 68.6 in (1,743 mm)
Capacities
Oil capacity
Crankcase: 10 qts (9.5 L)
Cooling System
Coolant Capacity. 5.5 gsl (20.8 L)
Weights
Weight
Open Set: 2,543 lbs (1,153 kg) | Weather Protected Enclosure Steel: 3,075 lbs (1,393 kg) | Weather Protected Enclosure Aluminum: 2,802 lbs (1,271 kg) | Level 1 Acoustic Enclosure Steel: 3,233 lbs (1,466 kg) | Level 1 Acoustic Enclosure Aluminum: 2,873 lbs (1,303 kg) | Level 2 Acoustic Enclosure Steel: 3,360 lbs (1,524 kg) | Level 2 Acoustic Enclosure Aluminum: 2,928 lbs (1,328 kg)
Features
Features
Number of Main Bearings: 5 | Lifter Type: Hydraulic Roller | Fan Type: Pusher | Oil Drain Extension | Air Cleaner | Fan Guard | Factory Filled Oil and Coolant | Radiator Duct Adapter (Open Set Only) | Critical Silencer (Enclosed Units Only) | Battery Charging Alternator | Battery Cables | Battery Tray | Solenoid Activated Starter Motor | Internal Genset Vibration Isolation | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Wrapped Exhaust Piping | Standard Factory Testing | Silencer Mounted in the Discharge Hood (Enclosed Units Only)
Construction Material
Connecting Rods: Forged Steel | Cylinder Head: Cast Iron | Piston Type: Aluminum Alloy | Crankshaft Type: Forged Steel | Intake Valve Material: Steel Alloy | Exhaust Valve Material: Stainless Steel | Stainless Steel Flexible Exhaust Connection | Rubber-Booted Engine Electrical Connections
Warranty
Warranty
2 Year Limited Warranty (Standby Rated Units) | 1 Year Warranty (Prime Rated Units)