Generac Portable Generator QT080 User Manual

GENERAC®STANDBY GENERATORS  
80 kW  
Liquid-Cooled Engine Generator Sets  
INCLUDES:  
Standby Power Rating  
Model QT080 (Bisque) - 80 kW 60Hz  
• Generac Naturally Aspirated  
Gaseous Fueled 4.6L Engine  
Two Line LCD Tri-lingual  
Digital Nexus™ Controller  
• Sound Attenuated Enclosure  
• Isochronous Electronic Governor  
• Closed Coolant Recovery System  
• Smart Battery Charger  
• UV/Ozone Resistant Hoses  
• ±1% Voltage Regulation  
• Natural Gas or LP Operation  
• 2 Year Limited Warranty  
• UL 2200 Listed  
Meets 2010 EPA Emission Regulations  
Not for sale in CA/MA  
FEATURES  
INNOVATIVE DESIGN & PROTOTYPE TESTING are key components of  
GENERAC’S success in “IMPROVING POWER BY DESIGN.” But it  
doesn’t stop there. Total commitment to component testing, reliability  
testing, environmental testing, destruction and life testing, plus testing  
to applicable CSA, NEMA, EGSA, and other standards, allows you to  
choose GENERAC POWER SYSTEMS with the confidence that these  
systems will provide superior performance.  
SOLID-STATE, FREQUENCY COMPENSATED VOLTAGE REGULATION.  
This state-of-the-art power maximizing regulation system is standard on  
all Generac 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. An  
unequalled ±1% voltage regulation.  
SINGLE SOURCE SERVICE RESPONSE from Generac’s extensive dealer  
network provides parts and service know-how for the entire unit, from the  
engine to the smallest electronic component.  
TEST CRITERIA:  
PROTOTYPE TESTED  
SYSTEM TORSIONAL TESTED  
NEMA MG1-22 EVALUATION  
MOTOR STARTING ABILITY  
GENERAC TRANSFER SWITCHES. Long life and reliability are  
synonymous with GENERAC POWER SYSTEMS. One reason for this  
confidence is that the GENERAC product line includes its own transfer  
systems and controls for total system compatibility.  
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Generac® Standby Generator - 80 kW  
®
OPERATING DATA  
KW RATING (LP/NG)  
80  
ENGINE SIZE  
4.6 Liter V-8  
GENERATOR OUTPUT VOLTAGE/KW - 60Hz  
KW  
AMP  
CB Size  
120/240V, 1-phase, 1.0 pf  
120/208V, 3-phase, 0.8 pf  
120/240V, 3-phase, 0.8 pf  
277/480V, 3-phase, 0.8 pf  
77  
80  
80  
80  
320  
278  
249  
120  
400  
300  
300  
150  
GENERATOR LOCKED ROTOR KVA  
AVAILABLE @ VOLTAGE DIP OF 35%  
Single phase or 208-240 3-phase  
480V 3-phase  
160  
185  
ENGINE FUEL CONSUMPTION (Natural Gas) (Propane)  
Natural Gas  
(ft3/hr.)  
131  
Propane  
(gal/hr.)  
1.45  
cu ft/hr  
53  
126  
241  
336  
Exercise cycle  
25% of rated load  
50% of rated load  
75% of rated load  
100% of rated load  
312  
600  
835  
1154  
3.45  
6.64  
9.25  
12.78  
465  
3
3
For Btu content, multiply ft /hr x 2520 (LP) or ft /hr x 1000 (NG)  
ENGINE COOLING  
Air flow (inlet air including alternator and combustion air)  
System coolant capacity  
Heat rejection to coolant  
Max. operating air temp. on radiator  
Max. ambient temperature  
ft3/min.  
US gal.  
BTU/hr.  
°C (°F)  
°C (°F)  
5300  
4.0  
316,000  
60 (150)  
50 (140)  
COMBUSTION AIR REQUIREMENTS  
Flow at rated power 60 Hz  
cfm  
250  
SOUND EMISSIONS IN DBA  
Exercising at 7 meters  
Normal operation at 7 meters  
64  
74  
EXHAUST  
Exhaust flow at rated output 60 Hz  
Exhaust temp. at muffler outlet  
cfm  
°C (°F)  
720  
449 (840)  
ENGINE PARAMETERS  
Rated synchronous RPM  
60 Hz  
3600  
POWER ADJUSTMENT FOR AMBIENT CONDITIONS  
Temperature Deration  
3% for every 10 °C above - °C  
1.65% for every 10 °F above - °F  
25  
77  
Altitude Deration  
1% for every 100 m above - m  
3% for every 1000 ft. above - ft.  
183  
600  
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.  
kW rating is based on LPG Fuel and may derate with natural gas.  
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INTERCONNECTIONS  
QT080  
CIRCUIT BREAKER WIRE AND CONDUIT SIZE  
kW  
80  
80  
80  
80  
VOLTS  
CB AMPS LUG SIZE  
240 1 Ø  
240 3 Ø  
208 3 Ø  
480 3 Ø  
400  
300  
300  
150  
(1) 600 mcm to #4 or (2) 1/0 to 250 mcm to 1/0  
(1) 600 mcm to #4 or (2) 1/0 to 250 mcm to 1/0  
(1) 600 mcm to #4 or (2) 1/0 to 250 mcm to 1/0  
#6 to 300 mcm  
NEXUS™ CONTROL FEATURES  
2-Line Plain Text LCD Display  
Simple user interface for ease of operation.  
Mode Switch  
-Auto  
Automatic Start on Utility failure. 7 day exerciser.  
-Off  
Stops unit. Power is removed. Control and charger still operate.  
-Manual/Test (start)  
Start with starter control, unit stays on. If utility fails, transfer to load takes place.  
Programmable start delay between 10-30 seconds  
Engine Start Sequence  
Engine Warm-up  
Standard  
Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration).  
5 seconds  
Engine Cool-Down  
1 minute  
Starter Lock-out  
Starter cannot re-engage until 5 sec. after engine has stopped.  
Smart Battery Charger  
Standard  
Standard  
Standard  
Standard, 72Hz  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Standard  
Automatic Voltage Regulation with Over and Under Voltage Protection  
Automatic Low Oil Pressure Shutdown  
Overspeed Shutdown  
High Temperature Shutdown  
Overcrank Protection  
Safety Fused  
Failure to Transfer Protection  
Low Battery Protection  
50 Event Run Log  
Future Set Capable Exerciser  
Incorrect Wiring Protection  
Internal Fault Protection  
Common External Fault Capability  
Governor Failure Protection  
*Single and three phase connections may vary , refer to the owner’s manual for specific connection information.  
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INSTALLATION LAYOUT  
QT080  
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AVAILABLE ACCESSORIES  
QT080  
Model #  
Product  
Description  
If the temperature regularly falls below 32° F, install a cold weather kit to maintain  
optimal battery temperature. Kit consists of battery warmer with thermostat built into  
the wrap.  
5632  
Cold Weather Kit  
Recommended where the temperature regularly falls below 32° F for extended periods  
of time. For liquid-cooled units only.  
5619  
5651  
5703  
5985  
5928  
5951  
5937  
Extreme Cold Weather Kit  
Base Plug Kit  
Add base plugs to the base of the generator to keep out debris.  
Bisque Kit  
Paint Kit  
The Liquid-cooled Scheduled Maintenance Kits offer all the hardware necessary to  
perform a complete maintenance on Generac liquid-cooled generators.  
Scheduled Maintenance Kit  
Nexus Wireless Remote  
Completely wireless and battery powered, Generac's Nexus wireless remote monitor  
provides you with instant status information without ever leaving the house.  
Remotely control generator functions with the advanced model's LCD display. In  
addition to remote testing of the generator, set the excercise cycle and maintenance  
interval reminders.  
Advanced Nexus Wireless  
Remote  
DLM Modules are used in conjunction with the Nexus Smart Switch to increase  
its load management capabilities. It gives the Nexus Smart Switch additional load  
management flexibility not found in any other transfer switch.  
DLM Load Control Module  
(50 Amps)  
®
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com  
©2012 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin 0188680SBY-F / Printed in U.S.A. 06/25/12  
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