GENERAC® GUARDIAN® SERIES
STANDBY GENERATORS
30 kW
Liquid-Cooled Engine Generator Sets
Includes:
• Generac Naturally Aspirated
Gaseous Fueled 1.5L Engine
Standby Power Rating
Model QT030 (Bisque) - 30 kW 60Hz
• Two Line LCD Tri-lingual
Digital Nexus™ Controller
• Isochronous Electronic Governor
• Sound Attenuated Enclosure
• 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 EPA Emission Regulations
CA/MA emissions Compliant
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.
¡ TEST CRITERIA:

PROTOTYPE TESTED
 SYSTEM TORSIONAL TESTED
¡
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.
 NEMA MG1-22 EVALUATION
 MOTOR STARTING ABILITY
¡
G ENERAC 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.
Application & Engineering Data
QT030
GENERATOR SPECIFICATIONS
TYPE
ENGINE SPECIFICATIONS
Synchronous
MAKE
ROTOR INSULATION
Class H
MODEL
STATOR INSULATION
Class H
CYLINDERS
TELEPHONE INTERFERENCE FACTOR (TIF)
<50
ALTERNATOR OUTPUT LEADS 1-PHASE
ALTERNATOR OUTPUT LEADS 3-PHASE
4 wire
6 wire
BEARINGS
Sealed Ball
COUPLING
Flexible Disc
LOAD CAPACITY (STANDBY RATING)
30 kW
EXCITATION SYSTEM
Direct
Single Phase
REGULATION
Revolving field heavy duty generator
Directly connected to the engine
Operating temperature rise 120°C above a 40°C ambient
Insulation is Class H rated at 150°C rise
All models are fully prototyped tested
ENCLOSURE FEATURES
protective enclosure
Ensures protection against mother nature.
Electrostatically applied textured epoxy paint for
added durability.
Enclosed critical grade
muffler
Quiet, critical grade muffler is mounted inside
the unit to prevent injuries.
Small, compact,
Makes for an easy, eye appealing installation.
SAE
Sound attenuated enclosure ensures quiet
operation.
attractive
COMPRESSION RATIO
INTAKE AIR SYSTEM
LIFTER TYPE
4
1.5 Liter
77.4
79.52
11:1
Naturally Aspirated
Hydraulic
FREQUENCY REGULATION
STEADY STATE REGULATION
Electronic
Isochronous
± 0.25%
± 1%
GENERATOR FEATURES
Galvanized steel weather
STROKE (mm)
TYPE
Electronic
SENSING
BORE (mm)
In line
GOVERNOR SPECIFICATIONS
VOLTAGE REGULATION
TYPE
DISPLACEMENT
Generac
ENGINE LUBRICATION SYSTEM
OIL PUMP
Gear
OIL FILTER
Full flow spin-on cartridge
CRANKCASE CAPACITY
4 Quarts
ENGINE COOLING SYSTEM
TYPE
WATER PUMP
FAN SPEED
FAN DIAMETER
FAN MODE
Closed
Belt driven
2484
17.7 inches
Pusher
FUEL SYSTEM
FUEL TYPE
CARBURETOR
Natural gas, propane vapor
Down Draft
SECONDARY FUEL REGULATOR
Standard
FUEL SHUT OFF SOLENOID
Standard
OPERATING FUEL PRESSURE
5” - 14” H2O
ELECTRICAL SYSTEM
BATTERY CHARGE ALTERNATOR
STATIC BATTERY CHARGER
RECOMMENDED BATTERY
SYSTEM VOLTAGE
12V 30 Amp
2 Amp
Group 26, 525CCA
12 Volts
Rating definitions - Standby: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. (All ratings in accordance with BS5514,
ISO3046 and DIN6271). (All ratings in accordance with BS5514, ISO3046, ISO8528, SAE J1349 and DIN6271).
Generac® Guardian® Series Standby Generator - 30 kW
®
OPERATING DATA
KW RATING (LP/NG)
30/30
ENGINE SIZE
1.5 Liter 4 cyl. inline
GENERATOR OUTPUT VOLTAGE/KW - 60Hz
120/240V, 1-phase, 1.0 pf
120/208V, 3-phase, 0.8 pf
120/240V, 3-phase, 0.8 pf
kW
AMP
CB Size
30
30
30
125
104
90
150
125
100
Natural Gas
(ft3/hr.)
60
240
320
400
492
ENGINE FUEL CONSUMPTION (Natural Gas) (Propane)
Exercise cycle
25% of rated load
50% of rated load
75% of rated load
100% of rated load*
Propane
(gal/hr.)
0.7
2.6
3.5
4.4
5.4
ft3/hr
24
96
128
160
197
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)
1,800
2.0
135,000
60 (150)
50 (140)
COMBUSTION AIR REQUIREMENTS
Flow at rated power 60 Hz
cfm
72
SOUND EMISSIONS IN DBA
Exercising at 7 meters
Normal operation at 7 meters
59
73
EXHAUST
Exhaust flow at rated output 60 Hz
Exhaust temp. at muffler outlet
cfm
°F
237
1130
60 Hz
3600
ENGINE PARAMETERS
Rated synchronous RPM
POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature Deration
3% for every 10 °C above - °C
1.65% for every 10 °F above - °F
25
77
1% for every 100 m above - m
3% for every 1000 ft. above - ft.
183
600
Altitude Deration
* Refer to "Emissions Data Sheets" for maximum fuel flow for EPA and SCAQMD permitting purposes.
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.
INTERCONNECTIONS
QT030
QT SERIES ENGINE GENERATOR
CONNECTION PANEL
UTILITY SUPPLY FROM
SERVICE DISCONNECT
RTS TRANSFER SWITCH
0 GROUND
15B +12V
T1
23 TRANSFER
N1
N2
T1/LINE
NEU
NEUTRAL
1
AIR 2
N1
N2
N1
N2
E1
E2
T1
T2
CONTACTOR
2
CONTACTOR
3
PRIORITY 2
LOAD SHED
MODULE
PRIORITY 3
UTILITY
(C1 & VR1)
CONTACTOR
4
PRIORITY 4
48850-T
N1
N2
T1
ON
194
23
183
178
CONTACTOR
PRIORITY 1
NOTE:
MATCH WIRE
NUMBERS TO
TERMINAL NUMBERS
E2
0
194
23
NEUTRAL BLOCK
NEUT
CUSTOMER CONNECTIONS
E1
194
23
AIR 1
CUSTOMER SUPPLIED
NEUTRAL WIRE
0
DC COMMON
194
+12VDC
STANDBY
(C2 & VR2)
23
TRANSFER
WARNING
NOTE WIRE ORIENTATION
N1 N2 T1
0
T1 E1 E2 T2
GROUND
GROUND
0C4449A-T
NEUTRAL BLOCK
CUSTOMER LOAD
(DISTRIBUTION PANEL)
NOTE:
POWER LEADS AND TRANSFER SWITCH LEADS
TO BE RUN IN TWO DIFFERENT CONDUITS.
LIQUID-COOLED INSTALLATION
NEXUS™ CONTROL FEATURES
2-Line Plain Text LCD Display
Mode Switch
-Auto
-Off
-Manual/Test (start)
Programmable start delay between 10-30 seconds
Engine Start Sequence
Engine Warm-up
Engine Cool-Down
Starter Lock-out
Smart Battery Charger
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
Simple user interface for ease of operation.
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.
Standard
Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration)
5 seconds
1 minute
Starter cannot re-engage until 5 sec. after engine has stopped.
Standard
Standard
Standard
Standard, 72Hz
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
*Single and three phase connections may vary , refer to the owner’s manual for specific connection information.
INSTALLATION LAYOUT
QT030
QT030
AVAILABLE ACCESSORIES
Model #
Product
Description
6175
Cold Weather Kit
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.
6174
Extreme Cold Weather Kit
Recommended where the temperature regularly falls below 32° F for extended periods
of time. For liquid cooled units only.
5651
Base Plug Kit
Add base plugs to the base of the generator to keep out debris.
5703
Paint Kit
Bisque Kit
6176
Scheduled Maintenance Kit
The Liquid-Cooled Scheduled Maintenance Kits offer all the hardware necessary to
perform a complete maintenance on Generac liquidcooled generators.
5928
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.
5951
Advanced Nexus Wireless
Remote
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.
5937
DLM Load Control Module
(50 Amps)
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.
®
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 0187680SBY-H / Printed in U.S.A. 06/28/12
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