GENERAC® STANDBY GENERATORS
22 kVA
Liquid-Cooled Engine Generator Sets
INCLUDES:
Standby Power Rating
Model QT02724MNAX - 22 kVA, 50Hz, 1Ø
Model QT02724RNAX - 27 kVA, 50Hz, 3Ø
• Generac Naturally Aspirated
Gaseous Fueled 2.4L 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
• 1 Year Limited Warranty
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.
ISO
9001:
2008
Generac® Standby Generator - 22kVA
®
OPERATING DATA
22, 1Ø
27, 3Ø
kVA RATING
ENGINE SIZE
2.4 Liter Inline 4
AMP
GENERATOR OUTPUT VOLTAGE/kVA - 50Hz
kVA
CB Size
110/220V, 1-phase, 1.0 pf
231/400V, 3-phase, 0.8 pf
21.6
27
98
39
125
50
ENGINE FUEL CONSUMPTION
Natural Gas
Propane
(ft3/hr.)
90
164
239
299
(M3/hr.)
2.55
4.65
6.77
8.47
(gal/hr.)
0.99
1.81
2.63
3.30
(liters/hr.)
3.75
6.84
9.97
12.47
(M3/hr.)
25% of rated load
50% of rated load
75% of rated load
100% of rated load
1.02
1.86
2.71
3.39
For Btu content, multiply ft3/hr x 2520 (LP) or ft3/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)
2,000
2.5
100,000
60 (150)
50 (140)
COMBUSTION AIR REQUIREMENTS
Flow at rated power 50 Hz
SOUND EMISSIONS IN DBA
Normal operation at 7 meters
EXHAUST
cfm
57
61
Exhaust flow at rated output 50 Hz
Exhaust temp. at muffler outlet
cfm
°F
110
885
ENGINE PARAMETERS
Rated synchronous RPM
HP at rated kVA
50 Hz
50 Hz
1500
35
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
ENCLOSURE
Material
Color
Aluminum
PMS 422 (Bisque)
RATING:
All three phase 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.
CONTROLS
22kVA
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, 62.5Hz
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
*Connections may vary , refer to the owner’s manual for specific connection information.
INSTALLATION LAYOUT
22kVA
®
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com
©2011 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin 0187760SBY-E / Printed in U.S.A. 06/26/12
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