Generac Guardian Series 20 KW Standby Home Generator: Includes Transfer Switch and Fascia Kit
When the lights go out you want a fast-acting automatic home standby generator to protect you from power loss. The Generac Guardian Model 6244 20,000 Watt (20KW) Air-cooled propane/natural gas powered generator is ideal for home use. Within seconds of losing power this unit starts up automatically without the hassle of manual startup. Packaged and pre-wired with just about everything needed it makes for easy installation and connects to your home's electrical system and existing natural gas fuel supply. So the next time the lights go out, home or away, you're protected by 20,000 watts of standby power.
Hands-Free Automatic Operation
Nobody wants to venture outside or fumble around in a dark cellar or basement during a storm trying to locate a fuse box. The Generac 6244 is ready to run once all the LP or natural gas connections are hooked up. No manual operation, no fueling and no more extension cords. Within seconds of an outage this generator responds so you don't lose access to heat or refrigeration.
The unit can be programmed to perform a weekly exercise at the time of your choice, so it will be ready for continuous and reliable operation on a moment's notice. For convenience, it also offers clear, digital controls, an at-a-glance status indicator, and an external GFCI outlet to accommodate your outdoor power needs.
Superior Technology for Secure Output, Quiet Operation, and Durability
Worried about those sensitive electronics and appliances like computers and HVAC equipment? Thanks to Generac's exclusive True Power Technology, this generator provides clean, continuous power so that equipment can be operated without the concern unexpected power surges bring. Disturbing the neighbors isn't an issue either. Thanks to Generac's patented Quiet-Test technology this unit is as quiet as an idling car so nobody has their routine affected.
The generator's aluminum enclosure offers superior corrosion resistance and is protected by Generac's proprietary RhinoCoat system--a unique process that binds the paint to the metal surface for a long-lasting, durable finish. This allows the generator to sit outdoors and withstand harsh weather conditions without developing an unsightly appearance.
Rugged, Worry-Free Design
Designed to accommodate larger electrical loads the 6244 features the high-performance exclusive air-cooled Generac OHVI® Engine. Able to keep up with rapidly changing conditions this engine optimizes power swiftly and efficiently.
This Generac generator meets CARB requirements. It requires a Group 26R 12-volt minimum 525 CCA battery (sold separately).
What's in the Box?
Generac Guardian Series 6244 20,000 Watt Air-Cooled Propane/Natural Gas Powered Automatic Standby Generator with Aluminum Enclosure; 200 Amp NEMA 3R service entrance rated automatic transfer switch, base fascia and composite mounting pad; installation guide and owner's manual.
*Scratch & Dent*
Cracked Base & Minor Costmetic Damage - Note** Will not affect operation, May have minor scratches/scuffs.
Generac's 200 Amp Service Entrance Rated Nexus Smart Transfer Switch with Digital Load Management Technology, NEMA 3R Rated
By sizing your generator according to your needs instead of your home’s square footage, you won’t overspend or be surprised by inadequate coverage. Decide what items are important to you in a power outage. these items are powered through circuits in your breaker box. the number of chosen circuits decides your generator size. Use this chart as a guide to determine the power you need.
Generac's Evolution™ Controller is the next generation of intuitive controllers featuring a multilingual, two-line LCD text display with color-coded, backlit buttons.
Load Shed Module Connections
Simple field conversion from natural gas to LP.
Generac OHVI Engine was designed specifically for generators. It out peforms most competitive generator engines with an engine life that is three to four times longer and has a significantly longer period between scheduled maintenance checkups.
Trupower Technology provides clean, smooth operation of sensitive electronics and appliances.
Sturdy, Aluminum enclosure with RhinoCoat™ finish provides excellent protection in salt-air coastal areas; withstands wind of up to 150 mph
External “At-a-Glance” indicator lights offer an easy way to tell generator status without opening the generator enclosure.
Added Sound Reduction with enclosures that are lined with sound reducing foam panels for further noise reduction.
Mobile Link™ wireless remote monitoring allows you to check on your generator at any time, from anywhere via your computer, tablet, or smartphone..
Easiest installation on the market and an excellent value when purchased pre-packaged with a pre-wired transfer switch, or customize your system by purchasing the generator and transfer switch separately. Composite mounting pad is included, making installation easier in places where a concrete pad is not required.
|GENERATOR||Model 006244-0 (20 kW)|
|Rated Maximum Continuous Power Capacity (LP)||20,000 Watts|
|Rated Maximum Continuous Power Capacity (NG)||18,000 Watts|
|Rated Voltage (Single Phase)
|Rated Maximum Continuous Load Current – 240 Volts||83.3 LP/75 NG|
|Total Harmonic Distortion||Less than 5%|
|Main Line Circuit Breaker||100 Amp|
|Number of Rotor Poles||2|
|Rated AC Frequency||60Hz|
|Battery Requirement (not included)||Group 26R 12 Volts and 525 Cold-cranking Amperes Minimum|
|Unit Weight||451 Pounds|
|Dimensions (L” x W” x H”)||48 x 25 x 29|
|Sound output in dB(A) at 23 ft. with generator operating at normal load||66|
|Sound output in dB(A) at 23 ft. with generator in Quiet-Test™ low speed exercise mode||60|
|Type of Engine||GENERAC OHVI V-TWIN|
|Number of Cylinders||2|
|Cylinder Block||Aluminum w/Cast
|Valve Arrangement||Overhead Valve|
|Ignition System||Solid-state w/Magneto|
|Oil Capacity Including Filter||Approx. 1.9 Qts./1.8L|
Natural Gas cu.ft./hr.
Liquid Propane ft3/hr (gal/hr)
|Required fuel pressure to generator fuel inlet at all load ranges - 5 to 7 inches of water column for natural gas, 10 to 12 inches of water column for LP gas|
|2-Line Plain Text LCD Display||Simple user interface for ease of operation|
|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||Standard|
|Engine Start Sequence||Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration)|
|Engine Warm-up||10 seconds|
|Engine Cool-Down||1 minute|
|Starter Lock-out||Starter cannot re-engage until 5 sec. after engine has stopped.|
|Smart Battery Charger||Standard|
|Automatic Voltage Regulation with Over and Under Voltage Protection||Standard|
|Automatic Low Oil Pressure Shutdown||Standard|
|Overspeed Shutdown||Standard, 72Hz|
|High Temperature Shutdown||Standard|
|Failure to Transfer Protection||Standard|
|Low Battery Protection||Standard|
|50 Event Run Log||Standard|
|Future Set Capable Exerciser||Standard|
|Incorrect Wiring Protection||Standard|
|Internal Fault Protection||Standard|
|Common External Fault Capability||Standard|
|TRANSFER SWITCH & PRIORITY LOAD CENTER|
|No. of Poles||2|
|Current Rating (amps)||200|
|Voltage Rating (VAC)||250|
|Utility Voltage Monitor (fixed)
|Return to Utility||approx. 13 sec.|
|Exerciser weekly for 12 minutes||Standard|
|Enclosure Type||NEMA 3R|
|Withstand Rating (Amps)||10,000|
|Lug Range||400MCM - #4|
|External Dimensions (H” x W” x D”)
|30 x 16 x 7.1
762 x 407 x 180
- Generac LP or Natural Gas Engine
- Trupower Technology for Sensative Circuits
- Two Line LCD Digital Nexus™ Controller
- Automatic Transfer Switch
- Composite Mounting Pad
- Flexible Fuel Line
- Prewired Electrical Conduit Box
- Isochronous Electronic Governor
- Smart Battery Charger
- UV/Ozone Resistant Hoses
- ±1% Voltage Regulation
- High efficiency, low distortion alternator
- UL2200 Listed
- Sound attenuated acoustic enclosure
- Electrostatically applied powder paint
- Whisper-Test™ low noise level exercise
- Acoustically designed engine cooling system
- High flow low noise exhaust system
- Watertight electrical connectors
- Vibration isolated from mounting base
- Easily accessible for maintenance
- Rodent proof construction
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Recent Customer Reviews
- Posted: 8/9/13
- Reviewer: N/A
Received in good condition
Everything is working well. However it has only been in service for a short time. It was a pleasure dealing with your company.