Technical Data TD00405004E Effective August 2009 EGEN20A Standby Generators Air Cooled 20kW Gas Engine Generator Sets Continuous Standby Power Rating: • Features: Power® EGEN20A (Aluminum) - 20 kW 60Hz Benefits: • True Electrical Technology • Two Line LCD Digital Controller • Electronic Governor • External Main Circuit Breaker, System Status & Maintenance Interval LED’s and GFCI Duplex Outlet • Flexible Fuel Line Connector • Composite Mounting Pad • Natural Gas or LP Gas Operation • UL 2200 Listed • otal commitment to component testing, T reliability, environmental, destruction and life, plus testing to applicable CSA, NEMA, EGSA, and other standards. • rue Power® Electrical Technology: Superior T harmonics and sine wave form produce less than 5% Total Harmonic Distortion for utility quality power. This allows confident operation of sensitive electronic equipment and micro-chip based appliances, such as variable speed HVAC. • Test Criteria: • Prototype Tested Nema Mg1-22 Evaluation • System Torsional Tested • Motor Starting Ability • Solid-state, frequency compensated voltage regulation. This state-of-the-art power maximizing regulation system is standard on all Eaton models. It provides optimized fast response to changing load conditions and maximum motor starting capability by electronically torque-matching the surge loads to the engine. • Single source service response from the industry’s best dealer network provides parts and service know-how for the entire unit. Standby Generators Technical Data TD00405004E Effective August 2009 Table 1. Features Features Engine • OHVI Design • ”Spiny-lok” cast iron cylinder walls Electronic ignition/spark advance • Full pressure lubrication system • • Generator Low oil pressure shutdown system High temperature shutdown • Revolving field • Skewed stator • Displaced phase excitation • Automatic voltage regulation • UL 2200 Listed Benefits • Maximizes engine “breathing” for increased fuel efficiency. Plateau honed cylinder walls and plasma moly rings help engine run cooler, reducing oil consumption. Because heat is the primary cause of engine wear, the OHVI has a significantly longer life than competitive engines. • Rigid construction and added durability provide long engine life. • These features combine to assure smooth, quick starting every time. • Superior lubrication to all vital bearings means better performance, less maintenance and significantly longer engine life. Now featuring a 2 year/200 hour oil change interval. • Superior shutdown protection prevents catastrophic engine damage due to low oil. • Prevents damage due to overheating. • Allows for smaller, light weight unit that operates 25% more efficiently than a revolving armature generator. • Produces a smooth output waveform for compatibility with electronic equipment. • Maximizes motor starting capability. • Regulates the output voltage to ±2% prevents damaging voltage spikes. • For your safety Transfer Switch Sold Separately Controls • Manual/Auto/Off switch • Selects the operating mode. • Utility voltage sensing • Constantly monitors utility voltage, setpoints 65% dropout, 75% pick-up, of standard voltage. • Utility interrupt delay • Prevents nuisance start-ups of the engine, adjustable 10-30 seconds. • Engine warm-up • Ensures engine is ready to assume the load, setpoint approximately 10 seconds. • Engine cool-down • Allows engine to cool prior to shutdown, setpoint approximately 1 minute. • Seven day exerciser • Operates engine to prevent oil seal drying and damage between power outages. • Timed Trickle Battery charger • Maintains battery charge level to insure starting. • Main Line Circuit Breaker • Protects generator from overload. • Electronic governor • Maintains constant 60 Hz frequency. • Weather protective enclosure • • Enclosed critical grade muffler Ensures protection against mother nature. Hinged key locking roof panel for security. Lift-out front for easy access to all routine maintenance items. Electrostatically applied textured epoxy paint for added durability. • Small, compact, attractive • Quiet, critical grade muffler is mounted inside the unit to prevent injuries. • Makes for an easy, eye appealing installation. • Easy Installation Unit Installation System 2 • 1’ Flexible Fuel Line Connector • Composite Mounting Pad EATON CORPORATION www.eaton.com Standby Generators Technical Data TD00405004E Effective August 2009 Table 2. Specifications Generator EGEN20A Rated Maximum Continuous Power Capacity (LP) 20,000 Watts* Rated Maximum Continuous Power Capacity (NG) 18,000 Watts* Rated Voltage 120/240 Rated Maximum Continuous Load Current 240 Volts 83.3 LP/75 NG Total Harmonic Distortion Less than 5% Main Line Circuit Breaker 100 Amp Phase 1 Number of Rotor Poles 2 Rated AC Frequency 60Hz Power Factor 1 Battery Requirement (not included) Group 26R, 12 Volts & 525 Cold-cranking Amps Min. Unit Weight 451 Pounds Dimensions (L” x W” x H”) 48 x 25 x 29 Sound output in dB(A) at 23 ft. with generator operating at normal load 66 Sound output in dB(A) at 23 ft. with generator in Quiet-Test™ low speed exercise mode 60 Engine Type of Engine OHVI V-TWIN Number of Cylinders 2 Rated Horsepower 36 @ 3,600 rpm Displacement 999cc Cylinder Block Aluminum w/ Cast Iron Slv. Valve Arrangement Overhead Valve Ignition System Solid-state w/ Magneto Governor System Electronic Compression Ratio 9.5:1 Starter 12 Vdc Oil Capacity Including Filter Approx. 1.9 Qts. Operating RPM 3,600 Fuel Consumption Natural Gas Liquid Propane cu.ft./hr: 1/2 Load / Full Load ft3/hr (gal/hr): 1/2 Load / Full Load 206 / 294 69 (1.89) / 106 (2.90) Required fuel pressure to generator fuel inlet at all load ranges - 5 to 7 inches of water column for natural gas, 10 to 12 inches of water column for LP gas Controls 2-Line Plain Text LCD Display Simple user interface for ease of operation Mode Switch -Auto -Off -Manual/Test (start) Automatic Start on Utility failure. 7 day exerciser Stops unit. Power is removed. Control and charger still operate Start with starter control, unit stays on. If utility fails, transfer to load takes place Engine Start Sequence Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration) Engine Warm-up 10 seconds Engine Cool-Down 1 minute Starter Lock-out Starter cannot re-engage until 5 sec. after engine has stopped 2.5 Amp Timed Trickle Battery Charger Standard Automatic Voltage Regulator w/Overvoltage Protection Standard Automatic Low Oil Pressure Shutdown Standard Overspeed Shutdown Standard / 72Hz Overcrank Protection Standard Safety Fuse Standard All ratings in accordance with BS5514, ISO3046 and DIN6271. * Maximum wattage & current are subject to & limited by such factors as fuel Btu content, ambient temperature, altitude, engine power & 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 12° C (10° F) above 15.5° C (60°F). EATON CORPORATION www.eaton.com 3 Standby Generators Technical Data TD00405004E Effective August 2009 637.6 (25.1) 1218 (47.9) 731.9 (28.8) 76.2 [3.0] Pea Gravel Minimum 642 (25.3) 1226 (48.3) Front View Left Side View Figure 1. Air Cooled Generator 20kW Design and specifications subject to change without notice. Dimensions shown are approximate. Contact your Eaton Salesperson for certified drawings. Do not use these dimensions for installation purposes. Eaton Corporation Electrical Sector 1000 Cherrington Parkway Moon Township, PA 15108 United States 877-ETN-CARE (877-386-2273) Eaton.com © 2009 Eaton Corporation All Rights Reserved Printed in USA Publication No. TD00405004E August 2009 All other trademarks are property of their respective owners.