Generac QT02724ANAX, QT02224JNAX User Manual

Series

®

Quietsource®

Series

INCLUDES:

• 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

®

QUIETSOURCE

SERIES

Standby Generators

Liquid-Cooled Gas Engine

Standby Power Rating

Model QT022 (Aluminum - Gray) - 22 kW 60Hz
Model QT027 (Aluminum - Gray) - 27 kW 60Hz
Model QT036 (Aluminum - Gray) - 36 kW 60Hz
Model QT048 (Aluminum - Gray) - 48 kW 60Hz

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• UL 2200 Listed

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  NEMA MG1-22 EVALUATION

 SYSTEM TORSIONAL TESTED  MOTOR STARTING ABILITY

Meets EPA Emission Regulations

22 & 27kW are CA/MA emissions compliant

48kW meets CA/MA emissions requirements with optional catalyst

36kW not for sale in CA/MA

¡ 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. Digital
voltage regulation at ±1%.

¡ 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.

¡ 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.

Series

®

22 • 27 • 36 • 48 kW application & engineering data

GENERATOR SPECIFICATIONS

Type Synchronous

Quietsource

Rotor Insulation Class

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Stator Insulation Class H

Telephone Interference Factor (TIF) <50

Alternator Output Leads 1-Phase 4 wire

Alternator Output Leads 3-Phase 6 wire

Bearings Sealed Ball

Coupling Flexible Disc

Excitation System Direct

VOLTAGE REGULATION

Type Electronic

Sensing Single Phase

Regulation ± 1%

GOVERNOR SPECIFICATIONS

Type Electronic

Frequency Regulation Isochronous

Steady State Regulation ± 0.25%

ELECTRICAL SYSTEM

Battery Charge Alternator 12 Volt 30 Amp

Static Battery Charger 2 Amp

Recommended Battery

System Voltage 12 Volts

GENERATOR FEATURES

Revolving field heavy duty generator
Directly connected to the engine
Operating temperature rise 120 °C above a 40 °C ambient
Class H insulation is rated at 150 °C rise at 25 °C ambient
Class F insulation is rated at 145 °C rise at 25 °C ambient
All models fully prototyped tested

ENCLOSURE FEATURES

Aluminum weather
protective enclosure

Enclosed critical grade
muffler

Small, compact, attractive Makes for an easy, eye appealing installation.

SAE Sound attenuated enclosure ensures quiet operation.

H (22 & 27 kW) or

F (36 & 48 kW)

Group 26 (22, 27 & 36 kW)

or Group 24F (48 kW), 525CCA

Ensures protection against mother nature.
Electrostatically applied textured epoxy paint for added
durability.

Quiet, critical grade muffler is mounted inside the unit
to prevent injuries.

ENGINE SPECIFICATIONS: 22, 27 & 36kW

Make Generac

Model In-line

Cylinders 4

Displacement (Liters) 2.4

Bore (in/mm) 3.41/86.5

Stroke (in/mm) 3.94/100

Compression Ratio 9.5:1

Intake Air System

Lifter Type Hydraulic

Naturally Aspirated (22 & 27 kW) or

Turbocharged/Aftercooled (36 kW)

ENGINE SPECIFICATIONS: 48kW

Make Generac

Model V-Type

Cylinders 8

Displacement (Liters) 5.4

Bore (in/mm) 3.55/90.2

Stroke (in/mm) 4.17/105.9

Compression Ratio 9:1

Intake Air System Naturally Aspirated

Lifter Type Hydraulic

ENGINE LUBRICATION SYSTEM

Oil Pump Type Gear

Oil Filter Type Full flow spin-on cartridge

Crankcase Capacity (quarts/liters)

4/3.8 (22, 27 & 36 kW) or

6/5.7 (48 kW)

ENGINE COOLING SYSTEM

Type Closed

Water Pump Belt driven

1980 - 22 & 27 kW

Fan Speed (rpm)

Fan Diameter (in/mm)

Fan Mode

18.1/459.7 (22 & 27 kW) or

1500 - 36 kW
1954 - 48 kW

22/558.8 (36 & 48 kW)

Pusher (22 & 27 kW) or

Puller (36 & 48 kW)

FUEL SYSTEM

Fuel Type Natural gas, propane vapor

Carburetor Down Draft

Secondary Fuel Regulator Standard

Fuel Shut Off Solenoid Standard

Operating Fuel Pressure 5” - 14” H2O

(All ratings in accordance with BS5514, ISO3046, ISO8528, SAE J1349 and DIN6271)

22 • 27 • 36 • 48 kW operating data

GENERATOR OUTPUT VOLTAGE/kW - 60Hz

kW LPG Amp LPG kW Nat. Gas Amp Nat. Gas CB Size (Both)

120/240 V, 1Ø, 1.0 pf 22 92 22 92 100

QT022

QT027

QT036

QT048

120/208 V, 3Ø, 0.8 pf 22 76 22 76 80

120/240 V, 3Ø, 0.8 pf 22 66 22 66 80

120/240 V, 1Ø, 1.0 pf 27 113 25 104 125

120/208 V, 3Ø, 0.8 pf 27 94 25 87 100

120/240 V, 3Ø, 0.8 pf 27 81 25 75 90

120/240 V, 1Ø, 1.0 pf 36 150 35 146 175

120/208 V, 3Ø, 0.8 pf 36 125 35 121 150

120/240 V, 3Ø, 0.8 pf 36 108 35 105 125

277/480 V, 3Ø, 0.8 pf 36 54 35 53 60

120/240 V, 1Ø, 1.0 pf 48 200 48 200 200

120/208 V, 3Ø, 0.8 pf 48 166.5 48 166 175

120/240 V, 3Ø, 0.8 pf 48 144 48 144 150

277/480 V, 3Ø, 0.8 pf 48 72 48 72 80

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SURGE CAPACITY IN AMPS

Voltage Dip @ < .4 pf

15% 30%

120/240 V, 1Ø 89 216

QT022

QT027

QT036

QT048

Note: Fuel pipe must be sized for full load.

For Btu content, multiply ft3/hr x 2520 (LP) or ft3/hr x 1000 (NG)

For megajoule content, multiple m³/hr x 93.89 (LP) or m³/hr x 37.26 (NG)

Refer to "Emissions Data Sheets" for maximum fuel flow for EPA and SCAQMD permitting purposes.

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.

120/208 V, 3Ø 74 180

120/240 V, 3Ø 64 156

120/240 V, 1Ø 109 265

120/208 V, 3Ø 91 221

120/240 V, 3Ø 79 192

120/240 V, 1Ø 54 149

120/208 V, 3Ø 87 210

120/240 V, 3Ø 75 182

277/480 V, 3Ø 36 87

120/240 V, 1Ø 69 189

120/208 V, 3Ø 111 269

120/240 V, 3Ø 96 233

277/480 V, 3Ø 43 104

ENGINE FUEL CONSUMPTION

Exercise cycle 42 1.2 0.44 1.7

25% of rated load 100 2.8 1.1 4.2

QT022

QT027

QT036

QT048

50% of rated load 190 5.4 2.1 7.8

75% of rated load 255 7.2 2.8 10.5

100% of rated load 316 9 3.4 13

Exercise cycle 42 1.2 0.44 1.7

25% of rated load 108 3.1 1.2 4.5

50% of rated load 197 5.6 2.1 8.1

75% of rated load 287 8.2 3.1 11.8

100% of rated load 359 10.2 3.9 14.8

Exercise cycle 48 1.4 0.5 2

25% of rated load 156 4.4 1.7 6.4

50% of rated load 282 8 3.1 11.6

75% of rated load 392 11.1 4.3 16.2

100% of rated load 503 14.3 5.5 20.8

Exercise cycle 95 2.7 1 3.9

25% of rated load 204 5.8 2.16 8.5

50% of rated load 392 11.1 4.14 15.7

75% of rated load 547 15.5 5.8 22.8

100% of rated load 756 21.5 7.96 31.3

Natural Gas Propane

(ft3/hr) (m³/hr) (gal/hr) (l/hr)