Generac Power Systems Portable Generator QT027 User Manual

QT027  
Standby Power Rating  
27 kW 60 Hz  
Liquid Cooled Gas Engine Generator Sets  
GENERAC 2.4L ENGINE  
Naturally Aspirated  
Gaseous Fueled  
Meets 2009 EPA Emission Regulations  
STANDARD EQUIPMENT  
Mainline circuit breaker  
Radiator drain extension  
Battery charge alternator  
2 Amp static battery charger  
Battery cables  
All input connections in one single area  
High coolant temperature shutdown  
Low oil pressure shutdown  
Low coolant level automatic shutdown  
Overspeed automatic shutdown  
Crank timer  
Exercise timer  
Oil drain extension  
Cool flow radiator  
Battery rack  
Fan and belt guards  
Isochronous governor  
Flex fuel line  
Hour meter  
Closed coolant recovery system  
UV/Ozone resistant hoses  
Watertight state of the art electrical connectors  
FEATURES  
Watertight electrical connectors  
Rodent proof construction  
High efficiency, low distortion Generac designed  
alternator  
Innovative design and fully prototype tested  
UL2200 Listed  
Solid state frequency compensated  
voltage regulator  
Vibration isolated from mounting base  
Matching Generac transfer switches engineered and  
tested to work as a system  
All components easily accessible for maintenance  
Electrostatically applied powder paint  
Dynamic and static battery charger  
Sound attenuated acoustically designed enclosure  
Quiet test for low noise level exercise  
Acoustically designed engine cooling system  
High flow low noise factory engineered exhaust system  
State of the art digital control system with R100 digital  
control panel  
 
QT027  
OPERATING DATA  
QT027  
KW RATING  
27  
ENGINE SIZE  
2.4 Liter Inline 4  
GENERATOR OUTPUT VOLTAGE/KW - 60Hz  
120/240V, 1-phase, 1.0 pf  
120/208V, 3-phase, 0.8 pf  
KW Nat. Gas AMP  
KW LPG  
AMP CB Size (Both)  
25  
25  
25  
104  
87  
75  
27  
27  
27  
112  
125  
100  
90  
94  
120/240V, 3-phase, 0.8 pf  
81  
GENERATOR LOCKED ROTOR KVA  
AVAILABLE @ VOLTAGE DIP OF 35%  
Single phase or 208 3-phase  
43  
ENGINE FUEL CONSUMPTION (Natural Gas) (Propane)  
Natural Gas (25 kW)  
Propane (27 kW)  
(gal/hr.) cu ft/hr  
(ft3/hr.)  
42  
Exercise cycle  
0.44  
1.2  
2.2  
3.2  
4.1  
16  
44  
81  
118  
147  
25% of rated load  
50% of rated load  
75% of rated load  
100% of rated load  
108  
197  
287  
359  
ENGINE COOLING  
Air flow (inlet air including alternator and combustion air) ft3/min.  
2,400  
2.5  
120,000  
60 (150)  
50 (140)  
System coolant capacity  
US gal.  
BTU/hr.  
°C (°F)  
°C (°F)  
Heat rejection to coolant  
Max. operating air temp. on radiator  
Max. ambient temperature  
COMBUSTION AIR REQUIREMENTS  
Flow at rated power 60 Hz  
cfm  
68  
SOUND EMISSIONS IN DBA  
Exercising at 7 meters  
Normal operation at 7 meters  
62  
75  
EXHAUST  
Exhaust flow at rated output 60 Hz  
Exhaust temp. at muffler outlet  
cfm  
°F  
130  
900  
ENGINE PARAMETERS  
Rated synchronous RPM  
HP at rated KW  
60 Hz  
60 Hz  
1800  
40  
POWER ADJUSTMENT FOR AMBIENT CONDITIONS  
Temperature Deration  
3% for every 10 °C above - °C  
1.65% for every 10 °F above - °F  
Altitude Deration  
25  
77  
1% for every 100 m above - m  
3% for every 1000 ft. above - ft.  
183  
600  
ENCLOSURE  
Material  
Aluminum  
Color  
PMS 422 (Bisque)  
RATING: All three phases units are rated at 0.8 power factor. All single phase units are rated at 1.0 power factor. STANDBY RATING: Standby ratings  
apply to installations served by a reliable utility source. The standby rating is applicable to varying loads for the duration of a power outage. There is  
no overload capability for this rating. Ratings are in accordance with ISO-3046-1. Design and specifications are subject to change without notice.  
 
INTERCONNECTIONS  
QT027  
27  
27  
27  
240 1 Ø  
208 3 Ø  
240 3 Ø  
125  
100  
90  
#2 to 1/0  
#4 to 1/0  
#4 to 1/0  
Installation Drawing Ref. No. 0G0325  
INSTALLATION LAYOUT  
62.2  
46.02  
DOOR TYP  
28.98  
AUTO  
OFF  
QUARTZ  
SET  
EXERCISE  
TIME  
OFF  
HOURS  
ON  
1/10  
MANUAL  
OVER CRANK  
OVER SPEED  
LOW COOLANT LEVEL  
HI COOLANT TEMPERATURE  
LOW OIL PRESSURE  
LOW BATTERY  
LOW FUEL PRESSURE  
SYSTEM READY  
DANGER  
High voltage.  
Contact with terminals  
may result in personal  
injury or death.  
FUSES  
LOCATED  
INSIDE  
33.5  
FRONT VIEW  
SEE INSTALL DWG 0G9370 FOR DETAILS  
WEIGHT: 891 lbs.  
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com  
©2009 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin 0177710SBY/Printed in U.S.A. 05.08, rev: 03.09  
 

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