®
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INCLUDES:
True Power™ Electrical Technology
Two Line LCD Multilingual Digital
Evolution™ Controller (English/Spanish/
French/Portuguese)
Two Transfer Switch Options Available:
100 Amp, 16 Circuit Switch or
200 Amp Service Rated Smart Switch.
See Page 5 for Details.
Electronic Governor
Standard Wi-Fi™ Remote Monitoring
System Status & Maintenance Interval LED Indicators
Sound Attenuated Enclosure
Flexible Fuel Line Connector
Direct-To-Dirt Composite Mounting Pad
Natural Gas or LP Gas Operation
5 Year Limited Warranty
Listed and Labeled by the Southwest Research Institute allowing
installation as close as 18" (457 mm) to a structure.*
*Must be located away from doors, windows, and fresh air
intakes and in accordance with local codes.
https://assets.swri.org/library/DirectoryOfListedProducts/
ConstructionIndustry/973_DoC_204_13204-01-01_Rev9.pdf
GUARDIAN® SERIES
Residential Standby Generators
Air-Cooled Gas Engine
Standby Power Rating
Models G007036-1, G007037-1 (Aluminum - Bisque) - 16 kW 60 Hz
Model G007035-1 (Aluminum - Bisque) - 16 kW 60 Hz
Models G007039-1, G007038-1 (Aluminum - Bisque) - 20 kW 60 Hz
Models G007043-2, G007042-2 (Aluminum - Bisque) - 22 kW 60 Hz
Note: CUL certification only applies to unbundled units and units packaged with
limited circuit switches. Units packaged with the Smart Switch are UL certified in
the USA only.
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FEATURES
INNOVATIVE ENGINE DESIGN & RIGOROUS TESTING are at the heart of Generac’s
success in providing the most reliable generators possible. Generac’s G-Force engine
lineup offers added peace of mind and reliability for when you need it the most. The
G-Force series engines are purpose built and designed to handle the rigors of
extended run times in high temperatures and extreme operating conditions.
TRUE POWER™ ELECTRICAL TECHNOLOGY: Superior harmonics and sine wave
form produce less than 5% Total Harmonic Distortion for utility quality power. This allows
confident operation of sensitive electronic equipment and micro-chip based appliances,
such as variable speed HVAC systems.
TEST CRITERIA:
√ PROTOTYPE TESTED √ NEMA MG1-22 EVALUATION
√ SYSTEM TORSIONAL TESTED √ MOTOR STARTING ABILITY
MOBILE LINK™ REMOTE MONITORING: FREE with every Guardian Series Home
standby generator. Allows you to monitor the status of your generator from anywhere in the
world using a smartphone, tablet, or PC. Easily access information such as the current
operating status and maintenance alerts. Connect your account to your authorized service
dealer for fast, friendly and proactive service. With Mobile Link, you are taken care of before
the next power outage.
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.
TM
®
16/20/22 kW
Engine
Generac G-Force design Maximizes engine “breathing” for increased fuel efficiency. Plateau honed cylinder walls and plasma moly
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“Spiny-lok” cast iron cylinder walls Rigid construction and added durability provide long engine life.
Electronic ignition/spark advance These features combine to assure smooth, quick starting every time.
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Full pressure lubrication system Pressurized lubrication to all vital bearings means better performance, less maintenance and longer engine
Low oil pressure shutdown system Shutdown protection prevents catastrophic engine damage due to low oil.
High temperature shutdown Prevents damage due to overheating.
Generator
Revolving field
Skewed stator Produces a smooth output waveform for compatibility with electronic equipment.
Displaced phase excitation
Automatic voltage regulation Regulates the output voltage to ±1% prevents damaging voltage spikes.
UL 2200 listed For your safety.
Transfer Switch (if applicable)
Fully automatic Transfers your vital electrical loads to the energized source of power.
NEMA 3R Can be installed inside or outside for maximum flexibility.
Remote mounting Mounts near your existing distribution panel for simple, low-cost installation.
features and benefits
rings helps the engine run cooler, reducing oil consumption resulting in longer engine life.
life. Now featuring up to a 2 year/200 hour oil change interval.
Allows for a smaller, light weight unit that operates 25% more efficiently than a revolving armature
generator.
Maximizes motor starting capability.
Evolution™ Controls
Auto/Manual/Off illuminated buttons Selects the operating mode and provides easy, at-a-glance status indication in any condition.
Two-line LCD multilingual display Provides homeowners easily visible logs of history, maintenance and events up to 50 occurrences.
Sealed, raised buttons Smooth, weather-resistant user interface for programming and operations.
Utility voltage sensing Constantly monitors utility voltage, setpoints 65% dropout, 80% pick-up, of standard voltage.
Generator voltage sensing Constantly monitors generator voltage to ensure the cleanest power delivered to the home.
Utility interrupt delay Prevents nuisance start-ups of the engine, adjustable 2-1500 seconds from the factory default setting of
five (5) seconds by a qualified dealer.
Engine warm-up Ensures engine is ready to assume the load, setpoint approximately 5 seconds.
Engine cool-down
Programmable exercise Operates engine to prevent oil seal drying and damage between power outages by running the generator
Smart battery charger
Main line circuit breaker
Electronic governor Maintains constant 60 Hz frequency.
Unit
SAE weather protective enclosure Sound attenuated enclosures ensure quiet operation and protection against mother nature, withstanding
Enclosed critical grade muffler Quiet, critical grade muffler is mounted inside the unit to prevent injuries.
Small, compact, attractive Makes for an easy, eye appealing installation, as close as 18" (457 mm) away from a building.
Allows engine to cool prior to shutdown, setpoint approximately 1 minute.
for 5 minutes every other week. Also offers a selectable setting for weekly or monthly operation providing
flexibility and potentially lower fuel costs to the owner.
Delivers charge to the battery only when needed at varying rates depending on outdoor air temperature.
Compatible with lead acid and AGM-style batteries.
Protects generator from overload.
winds up to 150 mph. Hinged key locking roof panel for security. Lift-out front for easy access to all routine
maintenance items. Electrostatically applied textured epoxy paint for added durability.
®
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Installation System
1 ft (305 mm) flexible fuel line connector Absorbs any generator vibration when connected to rigid pipe.
Direct-to-dirt composite mounting pad Complex lattice design prevents settling or sinking of the generator system.
Integral sediment trap Prevents particles and moisture from entering the fuel regulator and engine, prolonging engine life.
Remote Monitoring
Ability to view generator status
Ability to view generator Exercise/Run and Total Hours
Ability to view generator maintenance information
Monthly report with previous month’s activity. Detailed monthly reports provide historical generator information
Ability to view generator battery information Built in battery diagnostics displaying current state of the battery
Weather information Provides detailed local ambient weather conditions for generator location
Monitor your generator via your smartphone, tablet, or computer at any time via the Mobile Link application for
complete peace of mind
Review the generator's complete protection profile for exercise hours and total hours
Provides maintenance information for your specific model generator when scheduled maintenance is due
features and benefits
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®
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Generator
Model
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Rated Maximum Continuous Power Capacity (LP)
Rated Maximum Continuous Power Capacity (NG)
Rated Voltage
Rated Maximum Continuous Load Current – 240 Volts (LP/NG)
Total Harmonic Distortion
Main Line Circuit Breaker
Phase
Number of Rotor Poles
Rated AC Frequency
Power Factor
Battery Requirement (not included)
Unit Weight (lb/kg)
Dimensions (L x W x H) in/mm
Sound output in dB(A) at 23 ft (7 m) with generator operating at normal load**
Sound output in dB(A) at 23 ft (7 m) with generator in Quiet-Test™ low-speed exercise mode** 55 55 57
Exercise duration 5 min 5 min 5 min
Engine
Type of Engine
Number of Cylinders
Displacement
Cylinder Block
Valve Arrangement
Ignition System
Governor System
Compression Ratio
Starter
Oil Capacity Including Filter
Operating rpm
Fuel Consumption
Natural Gas ft³/hr (m³/hr)
1/2 Load
Full Load
Liquid Propane ft
1/2 Load
Full Load
Note: Fuel pipe must be sized for full load. Required fuel pressure to generator fuel inlet at all load ranges - 3.5-7" water column (7-13 mm mercury) for natural gas, 10-12" water column (19-22 mm mercury)
for LP gas. For BTU content, multiply ft
Controls
Two-Line Plain Text Multilingual LCD Display Simple user interface for ease of operation.
Mode Buttons:Auto Automatic Start on Utility failure. 7 day exerciser.
Manual Start with starter control, unit stays on. If utility fails, transfer to load takes place.
Off Stops unit. Power is removed. Control and charger still operate.
Ready to Run/Maintenance Messages Standard
Engine Run Hours Indication Standard
Programmable start delay between 2-1500 seconds Standard (programmable by dealer only)
Utility Voltage Loss/Return to Utility Adjustable (Brownout Setting) From 140-171 V / 190-216 V
Future Set Capable Exerciser/Exercise Set Error Warning Standard
Run/Alarm/Maintenance Logs 50 Events Each
Engine Start Sequence Cyclic cranking: 16 sec on, 7 rest (90 sec maximum duration).
Starter Lock-out Starter cannot re-engage until 5 sec after engine has stopped.
Smart Battery Charger Standard
Charger Fault/Missing AC Warning Standard
Low Battery/Battery Problem Protection and Battery Condition Indication Standard
Automatic Voltage Regulation with Over and Under Voltage Protection Standard
Under-Frequency/Overload/Stepper Overcurrent Protection Standard
Safety Fused/Fuse Problem Protection Standard
Automatic Low Oil Pressure/High Oil Temperature Shutdown Standard
Overcrank/Overspeed (@ 72 Hz)/rpm Sense Loss Shutdown Standard
High Engine Temperature Shutdown Standard
Internal Fault/Incorrect Wiring Protection Standard
Common External Fault Capability Standard
Field Upgradable Firmware Standard
**Sound levels are taken from the front of the generator. Sound levels taken from other sides of the generator may be higher depending on installation parameters. 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). * Maximum kilovolt amps and current are subject to and limited by such factors as fuel Btu/megajoule
content, ambient temperature, altitude, engine power and condition, etc. Maximum power decreases about 3.5 percent for each 1,000 feet (304.8 meters) above sea level; and also will decrease about 1 percent for each 6 °C (10 °F) above 16 °C (60 °F).
G007035-1, G007036-1,
G007038-1, G007039-1
G007037-1 (16 kW)
16,000 Watts* 20,000 Watts* 22,000 Watts*
16,000 Watts* 18,000 Watts* 19,500 Watts *
240 240 240
66.7 / 66.7 83.3 / 75.0 91.7 / 81.3
Less than 5% Less than 5% Less than 5%
70 Amp 90 Amp 100 Amp
1 1 1
2 2 2
60 Hz 60 Hz 60Hz
1.0 1.0 1.0
12 Volts, Group 26R 540 CCA Minimum or Group 35AGM 650 CCA Minimum
409 / 186 448 / 203 466 / 211
48 x 25 x 29 / 1 218 x 638 x 732
67 67 67
GENERAC G-Force 1000 Series
2 2 2
999 cc 999 cc 999 cc
Aluminum w/ Cast Iron Sleeve
Overhead Valve Overhead Valve Overhead Valve
Solid-state w/ Magneto Solid-state w/ Magneto Solid-state w/ Magneto
Electronic Electronic Electronic
9.5:1 9.5:1 9.5:1
12 VDC 12 VDC 12 VDC
Approx. 1.9 qt / 1.8 L Approx. 1.9 qt / 1.8 L Approx. 1.9 qt / 1.8 L
3,600 3,600 3,600
218 (6.17)
3
/hr (gal/hr) [l/hr]
309 (8.75)
74 (2.03) [7.70]
107 (2.94) [11.11]
3
/hr x 2500 (LP) or ft3/hr x 1000 (NG). For Megajoule content, multiply m³/hr x 93.15 (LP) or m³/hr x 37.26 (NG)
(20 kW)
204 (5.78)
301 (8.52)
87 (2.37) [8.99]
130 (3.56) [13.48]
specifications
G007042-2, G007043-2
(22 kW)
228 (6.46)
327 (9.26)
92 (2.53) [9.57]
142 (3.90) [14.77]
®
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Limited Circuits Switch Features
16 space, 24 circuit, breakers not included.
Electrically operated, mechanically-held contacts for fast, positive
connections
Rated for all classes of load, 100% equipment rated, both inductive and
resistive.
2-pole, 250 VAC contactors.
30 millisecond transfer time.
Dual coil design.
Rated for both copper and aluminum conductors.
Main contacts are silver plated or silver alloy to resist welding and sticking.
NEMA/UL 3R aluminum outdoor enclosure allows for indoor or outdoor
mounting flexibility.
Multi listed for use with 1" standard, tandem, GFCI and AFCI breakers from
Siemens, Murray, Eaton and Square D for the most flexible and cost effective
install.
Dimensions
Height Width Depth
H1 H2 W1 W2
in 26.75 30.1 10.5 13.5 6.91
mm 679.4 764.3 266.7 343.0 175.4
switch options
Model
No. of Poles 2
Current Rating (Amps) 100
Voltage Rating (VAC) 120 / 240, 1Ø
Utility Voltage Monitor (Fixed)*
-Pick-up
-Dropout
Return to Utility* approx. 15 sec
Exercises bi-weekly for 5 minutes* Standard
UL Listed Standard
Total Circuits Available 24
Tandem Breaker Capabilities 8 tandems
Circuit Breaker Protected
Available RMS Symmetrical
Fault Current @ 250 Volts
*Function of Evolution Controller
Exercise can be set to weekly or monthly
W1
H2
G007036-1 (16kW)
80%
65%
10,000
H1
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Wire Ranges
Conductor Lug Neutral Lug Ground Lug
1/0 - #14 2/0 - #14 2/0 - #14
Service Rated Smart Switch Features
Includes Digital Power Management Technology standard (DPM).
Intelligently manages up to four air conditioner loads with no additional
hardware.
Up to four more large (240 VAC) loads can be managed when used in
conjunction with Smart Management Modules (SMMs).
Electrically operated, mechanically-held contacts for fast, clean connections.
Rated for all classes of load, 100% equipment rated, both inductive and resis-
tive.
2-pole, 250 VAC contactors.
Service equipment rated, dual coil design.
Rated for both aluminum and copper conductors.
Main contacts are silver plated or silver alloy to resist welding and sticking.
NEMA/UL 3R aluminum outdoor enclosure allows for indoor or outdoor mount-
ing flexibility.
Dimensions
DEPTH
Model
No. of Poles 2
Current Rating (Amps) 200
Voltage Rating (VAC)
Utility Voltage Monitor (Fixed)*
-Pick-up
-Dropout
Return to Utility* approx. 13 sec
Exercises bi-weekly for 5 minutes* Standard
UL Listed Standard
Enclosure Type NEMA/UL 3R
Circuit Breaker Protected 22,000
Lug Range 250 MCM - #6
W2
G007037-1 (16 kW)/G007039-1 (20 kW)/
G007043-2 (22 kW)
120/240, 1Ø
80%
65%
*Function of Evolution Controller
Exercise can be set to weekly or monthly
W1
200 Amps 120/240, 1ø
Open Transition Service Rated
Height Width Depth
H1 H2 W1 W2
in 26.75 30.1 10.5 13.5 6.91
mm 679.4 764.3 266.7 343.0 175.4
DEPTH
H2
W2
H1
16/20/22 kW available accessories
Model # Product Description
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G007005-0 Wi-Fi LP Fuel Level Monitor
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G005819-0 26R Wet Cell Battery
G007101-0 Battery Pad Warmer
G007102-0 Oil Warmer
G007103-1 Breather Warmer
G005621-0
G007027-0 - Bisque
G005703-0 - Bisque Paint Kit
G006485-0
G006873-0
Auxiliary Transfer Switch
Contact Kit
Fascia Base Wrap Kit
(Standard on 22 kW)
Scheduled Maintenance Kit
Smart Management Module
(50 Amps)
The Wi-Fi enabled LP fuel level monitor provides constant monitoring of the connected LP fuel tank. Monitoring the LP tank's fuel level is an important step in making sure your generator is ready to run during an
unexpected power failure. Status alerts are available through a free application to notify when your LP tank
is in need of a refill.
Every standby generator requires a battery to start the system. Generac offers the recommended 26R wet
cell battery for use with all air-cooled standby product (excluding PowerPact®).
The pad warmer rests under the battery. Recommended for use if the temperature regularly falls below
0 °F (-18 °C). (Not necessary for use with AGM-style batteries).
O
il warmer slips directly over the oil filter. Recommended for use if the temperature regularly falls below
.
(-18 °C)
0 °F
The breather warmer is for use in extreme cold weather applications. For use with Evolution controllers
only in climates where heavy icing occurs.
The auxiliary transfer switch contact kit allows the transfer switch to lock out a single large electrical load
you may not need. Not compatible with 50 amp pre-wired switches.
The fascia base wrap snaps together around the bottom of the new air cooled generators. This offers a
sleek, contoured appearance as well as offering protection from rodents and insects by covering the lifting
holes located in the base.
If the generator enclosure is scratched or damaged, it is important to touch up the paint to protect from
future corrosion. The paint kit includes the necessary paint to properly maintain or touch up a generator
enclosure.
Generac's scheduled maintenance kits provide all the hardware necessary to perform complete routine
maintenance on a Generac automatic standby generator.
Smart Management Modules are used in conjunction with the Automatic Transfer Switch to increase its
power management capabilities. It provides additional power management flexibility not found in any other
power management system.
727.2 mm
[28.6 in]
Dimensions shown are approximate. Refer to installation manual for exact dimensions. DO NOT USE THESE DIMENSIONS FOR INSTALLATION PURPOSES.
637.6 mm
[25.1 in]
648 mm
[25.5 in]
LEFT SIDE VIEW
dimensions & UPCs
1218 mm
[48.0 in]
Model UPC
G007035-1 696471074161
G007036-1 696471074154
G007037-1 696471074178
G007038-1 696471074185
G007039-1 696471074192
G007042-2 696471074208
G007043-2 696471074215
1232 mm
[48.5 in
]
FRONT VIEW
®
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com
©2018 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Part No. 10000000194-H (8/01/18)
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