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Generac Guardian Series 6244 20KW/18KW Automatic Home Standby Generator

Item Code: 6244

Availability: In stock

$4,250.00

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Quick Overview

Generac Guardian Series 6244 20KW Standby Home Generator With 200AMP Smart Switch



Warranty | Installation Guide | Spec Sheet


Generator Sizing Guide

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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.


Click Here For Details


Generac's 200 Amp Service Entrance Rated Nexus Smart Transfer Switch with Digital Load Management Technology, NEMA 3R Rated

GENERATOR SIZING

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.

             

Generator Size

8 kw

10 kw

12 kw

14 kw

16 kw

20 kw

Number of Circuits

8

10

12

14

16

Whole House

Air conditioning

2-ton

3-ton

3-ton

up to 4-ton*

up to 5-ton*

up to 5-ton*

Kitchen

-

-

-

-

-

-

Furnace

-

-

-

-

-

-

Sump Pump

-

-

-

-

-

-

Bathrooms on Emergency

1

1

2

2

3

3+

Bedrooms on Emergency

1

2

3

4

5

5+

Living Areas

-

-

-

-

-

-

Well Pump or Heater

 

-

-

-

-

-

Home Office

 

 

-

-

-

-

Garage

 

 

-

-

-

-


Generac's Evolution™ Controller is the next generation of intuitive controllers featuring a multilingual, two-line LCD text display with color-coded, backlit buttons.

 

EVOLUTION CONTROLLER FEATURES

The new Nexus controller for air-cooled generators (8 -20 kW) not only includes upgraded features available in the original controller, but also includes several new features, making it the most comprehensive air-cooled controller available.

External common fault alarm

Allows for a connection to drive a common alarm if any shutdown for the generator occurs (i.e., security system, home automation integration)

Wiring error

Gives indication if transfer switch is connected incorrectly without allowing board damage

Battery sentinel

Monitors the battery to indicate that the battery is going to fail or if it has failed

Generator high voltage shutdown

Shuts down generator at preset levels to avoid high voltage damage to appliances

Generator low voltage shutdown

Shuts down generator at preset levels when voltage dips too low

Internal fault shutdown

Shuts down generator in event of controller failure

Master Nexus Controller includes voltage regulator, battery charger and engine controller

+/-1% voltage regulation, smart charging battery system where output voltage is dependent upon ambient temperature and only charges the system when needed

now available on all models:

LCD display and keyboard Remote maintenance LEDs Time & date Alarm log Run log

Set exercise via display Engine hour display RPM display & sensor loss alarm Frequency Battery voltage, Underspeed/fail to transfer alarm, High engine temperature alarm, Low oil, display Trilingual display

Load Shed Module Connections

Spec Sheet For RTS Automatic Transfer Switch


 

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.


     http://media.generac.com/images/9066/media_gallery/2013HSB_open_low.jpg

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)
240 Volt
Rated Maximum Continuous Load Current – 240 Volts 83.3 LP/75 NG
Total Harmonic Distortion Less than 5%
Main Line Circuit Breaker 100 Amp
Phase 1
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
   
ENGINE  
Type of Engine GENERAC OHVI V-TWIN
Number of Cylinders 2
Displacement 999cc
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 Qts./1.8L
Operating RPM 3,600
Fuel Consumption
Natural Gas cu.ft./hr.
1/2 Load
Full Load
Liquid Propane ft3/hr (gal/hr)
1/2 Load
Full Load

 

206
294

69 (1.89)
106 (2.90)

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
   
CONTROLS  
2-Line Plain Text LCD Display Simple user interface for ease of operation
Mode Switch
-Auto
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
Overcrank Protection Standard
Safety Fused 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)
-Pick-up
-Dropout
75%
65%
Return to Utility approx. 13 sec.
Exerciser weekly for 12 minutes Standard
UL Listed Standard
Enclosure Type NEMA 3R
Withstand Rating (Amps) 10,000
Lug Range 400MCM - #4
External Dimensions (H” x W” x D”)
inches
mm
30 x 16 x 7.1
762 x 407 x 180
   
5 Year Warranty
  • 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 aluminum 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 constructionn

Recent Customer Reviews

  • Posted: 8/9/13
  • Reviewer: N/A
  • Price:
  • Value:
  • Quality:

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.

Sphere 1 allows independent businesses to use their combined purchasing power to attain competitive pricing for the goods and services they use. At a time when the relentless expansion of manufacturer owned distributor networks, large multi yard chains, and big box home improvement retailers is intensifying, independently owned operations have turned to Sphere 1 to help level the playing field with these large competitors.

The Specialty Tools & Fasteners Distributors Association (STAFDA) is a not-for-profit educational trade association comprised of distributors, manufacturers, and rep agents of light construction, industrial, and related products. STAFDA membership also includes publishers of industry trade press (affiliates). STAFDA has 2,500+ members from the U.S., Canada, and overseas.