Generac Guardian Series 16/20/22 kW Residential Standby Generators
Air-Cooled Gas Engine
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
- Certified by the Southwest Research Institute (SwRI) 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. SwRI Certification Link
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.
Features
Innovative Engine Design & Rigorous Testing
Generac's G-Force engine lineup offers peace of mind and reliability. The G-Force series engines are purpose-built and designed to handle 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, allowing confident operation of sensitive electronic equipment and micro-chip based appliances, such as variable speed HVAC systems.
Test Criteria
- ✔️ PROTOTYPE TESTED
- ✔️ SYSTEM TORSIONAL TESTED
- ✔️ NEMA MG1-22 EVALUATION MOTOR STARTING ABILITY
Mobile Link™ Remote Monitoring
FREE with every Guardian Series Home standby generator. Allows monitoring of the generator's status from anywhere globally via smartphone, tablet, or PC. Access operating status and maintenance alerts. Connect to an authorized service dealer for proactive service.
Solid-State, Frequency Compensated Voltage Regulation
This system provides optimized FAST RESPONSE to changing load conditions and MAXIMUM MOTOR STARTING CAPABILITY by electronically torque-matching surge loads to the engine. Digital voltage regulation is ±1%.
Single Source Service Response
Generac's dealer network provides parts and service know-how for the entire unit, from engine to electronic components.
Generac Transfer Switches
Generac transfer systems and controls are designed for total system compatibility, ensuring long life and reliability.
Engine
- Generac G-Force design
- "Spiny-lok" cast iron cylinder walls
- Electronic ignition/spark advance
- Full pressure lubrication system
- Low oil pressure shutdown system
- High temperature shutdown
Generator
- Revolving field
- Skewed stator
- Displaced phase excitation
- Automatic voltage regulation
- UL 2200 listed
Transfer Switch (if applicable)
- Fully automatic
- NEMA 3R
- Remote mounting
Evolution™ Controls
- Auto/Manual/Off illuminated buttons
- Two-line LCD multilingual display
- Sealed, raised buttons
- Utility voltage sensing
- Generator voltage sensing
- Utility interrupt delay
- Engine warm-up
- Engine cool-down
- Programmable exercise
- Smart battery charger
- Main line circuit breaker
- Electronic governor
Unit
- SAE weather protective enclosure
- Enclosed critical grade muffler
- Small, compact, attractive
Installation System
- 1 ft (305 mm) flexible fuel line connector: Absorbs generator vibration when connected to rigid pipe.
- Direct-to-dirt composite mounting pad: Complex lattice design prevents settling or sinking.
- 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
- Ability to view generator battery information
- Weather information
Monitor your generator via smartphone, tablet, or computer using the Mobile Link application for complete peace of mind. Review protection profiles, maintenance information, historical data, battery diagnostics, and local weather conditions.
Specifications
| Generator | G007035-1, G007036-1, G007038-1, G007039-1 | G007037-1 (16 kW) | G007042-2, G007043-2 (22 kW) |
| Model | G007035-1, G007036-1, G007038-1, G007039-1 | G007037-1 (16 kW) | G007042-2, G007043-2 (22 kW) |
| Rated Maximum Continuous Power Capacity (LP) | 16,000 Watts* | 16,000 Watts* | 22,000 Watts* |
| Rated Maximum Continuous Power Capacity (NG) | 16,000 Watts* | 18,000 Watts* | 19,500 Watts * |
| Rated Voltage | 240 | 240 | 240 |
| Rated Maximum Continuous Load Current - 240 Volts (LP/NG) | 66.7/66.7 | 83.3/75.0 | 91.7/81.3 |
| Total Harmonic Distortion | Less than 5% | Less than 5% | Less than 5% |
| Main Line Circuit Breaker | 70 Amp | 90 Amp | 100 Amp |
| Phase | 1 | 1 | 1 |
| Number of Rotor Poles | 2 | 2 | 2 |
| Rated AC Frequency | 60 Hz | 60 Hz | 60Hz |
| Power Factor | 1.0 | 1.0 | 1.0 |
| Battery Requirement (not included) | 12 Volts, Group 26R 540 CCA Minimum or Group 35AGM 650 CCA Minimum | ||
| Unit Weight (lb/kg) | 409/186 | 448/203 | 466/211 |
| Dimensions (L x W x H) in/mm | 48 x 25 x 29 / 1218 x 638 x 732 | ||
| Sound output in dB(A) at 23 ft (7 m) with generator operating at normal load** | 67 | 67 | 67 |
| 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 Specifications
| Engine | GENERAC G-Force 1000 Series |
| Type of Engine | GENERAC G-Force 1000 Series |
| Number of Cylinders | 2 |
| Displacement | 999 cc |
| Cylinder Block | Aluminum w/ Cast Iron Sleeve |
| Valve Arrangement | Overhead Valve |
| Ignition System | Solid-state w/ Magneto |
| Governor System | Electronic |
| Compression Ratio | 9.5:1 |
| Starter | 12 VDC |
| Oil Capacity Including Filter | Approx. 1.9 qt/1.8 L |
| Operating rpm | 3,600 |
Fuel Consumption
| Fuel | 1/2 Load | Full Load | |
| Natural Gas ft³/hr (m³/hr) | 218 (6.17) / 309 (8.75) | 204 (5.78) / 301 (8.52) | 228 (6.46) / 327 (9.26) |
| Liquid Propane ft³/hr (gal/hr) [l/hr] | 74 (2.03) [7.70] / 107 (2.94) [11.11] | 87 (2.37) [8.99] / 130 (3.56) [13.48] | 92 (2.53) [9.57] / 142 (3.90) [14.77] |
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 ft³/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).
Controls
The Evolution™ Controls feature a simple user interface for ease of operation, including Auto/Manual/Off mode buttons, a two-line LCD multilingual display, and sealed, raised buttons. It monitors utility and generator voltage, includes utility interrupt delay, engine warm-up and cool-down cycles, and programmable exercise functions. The system also features a smart battery charger, main line circuit breaker, and electronic governor. It provides ready-to-run/maintenance messages, engine run hours, programmable start delays (2-1500 seconds), adjustable utility voltage settings for brownouts, exercise set warnings, run/alarm/maintenance logs (50 events each), cyclic cranking engine start sequence, starter lock-out, charger fault warnings, and battery condition indications. It includes automatic voltage regulation with over/under voltage protection, under-frequency/overload/stepper overcurrent protection, safety fused protection, automatic low oil pressure/high oil temperature shutdown, overcrank/overspeed/rpm sense loss shutdown, high engine temperature shutdown, internal fault/incorrect wiring protection, and common external fault capability. Firmware is field upgradable.
Switch Options
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 flexible and cost-effective installation.
Limited Circuits Switch 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 |
Limited Circuits Switch 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 (DPM) standard.
- Intelligently manages up to four air conditioner loads without additional hardware.
- Up to four more large (240 VAC) loads can be managed 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 resistive.
- 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 mounting flexibility.
Service Rated Smart Switch Dimensions
| Model | G007037-1 (16 kW)/G007039-1 (20 kW)/ G007043-2 (22 kW) | ||||
| No. of Poles | 2 | ||||
| Current Rating (Amps) | 200 | ||||
| Voltage Rating (VAC) | 120/240, 1Φ | ||||
| Utility Voltage Monitor (Fixed)* -Pick-up | 80% | ||||
| -Dropout | 65% | ||||
| 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 | ||||
| 200 Amps 120/240, 1Φ | |||||
| Transition Type | 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 |
*Function of Evolution Controller. Exercise can be set to weekly or monthly.
Available Accessories
| Model # | Product | Description |
| G007005-0 | Wi-Fi LP Fuel Level Monitor | Monitors LP fuel tank level, providing status alerts for refills. |
| G005819-0 | 26R Wet Cell Battery | Recommended battery for all air-cooled standby products (excluding PowerPact®). |
| G007101-0 | Battery Pad Warmer | Recommended for use if temperatures regularly fall below 0 °F (-18 °C). Not necessary for AGM-style batteries. |
| G007102-0 | Oil Warmer | Slips over the oil filter; recommended for use if temperatures regularly fall below 0 °F (-18 °C). |
| G007103-1 | Breather Warmer | For use in extreme cold weather applications with Evolution controllers in climates with heavy icing. |
| G005621-0 | Auxiliary Transfer Switch Contact Kit | Allows the transfer switch to lock out a single large electrical load. Not compatible with 50 amp pre-wired switches. |
| G007027-0 - Bisque | Fascia Base Wrap Kit (Standard on 22 kW) | Snaps around the generator base for a sleek appearance and protection from rodents and insects. |
| G005703-0 - Bisque | Paint Kit | For touching up scratches or damage to the generator enclosure to protect from corrosion. |
| G006485-0 | Scheduled Maintenance Kit | Provides hardware for complete routine maintenance on Generac automatic standby generators. |
| G006873-0 | Smart Management Module (50 Amps) | Used with Automatic Transfer Switch to increase power management capabilities and flexibility. |
Dimensions & UPCs
Dimensions shown are approximate. Refer to installation manual for exact dimensions. DO NOT USE THESE DIMENSIONS FOR INSTALLATION PURPOSES.
| Model | UPC |
| G007035-1 | 696471074161 |
| G007036-1 | 696471074154 |
| G007037-1 | 696471074178 |
| G007038-1 | 696471074185 |
| G007039-1 | 696471074192 |
| G007042-2 | 696471074208 |
| G007043-2 | 696471074215 |
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)
Generac Power Systems | A total energy solutions company
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