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Generac Pre Packaged 20000 Watts Air Cooled Home Generator - 5744

Abt Model: 5744
 Discontinued Product This item is no longer available from our website.
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Generac - 5744 - Power Generators
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Electronic Ignition/ Spark Advance/ Low Oil Pressure Shutdown System/ High Temperature Shutdown/ Utility Interrupt Delay/ Engine Warm-Up And Cool-Down/ Seven Day Exerciser/ Weather Protective Enclosure/ Gray Finish
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Average Customer Reviews

4.7 (44 reviews) 4.5
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Product Details

Generac Pre Packaged 20000 Watts Air Cooled Home Generator - 5744

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.

TRUE POWERR 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.

TEST CRITERIA:

  • PROTOTYPE TESTED
  • NEMA MG1-22 EVALUATION
  • SYSTEM TORSIONAL TESTED
  • MOTOR STARTING ABILITY

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.

SINGLE SOURCE SERVICE RESPONSE from Generac's 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.

Features:

ENGINE

  • Generac (OHVI) Design: Maximizes engine “breathing” for increased fuel efficiency. Plateau honed cylinder walls and plasma moly rings help engine run cooler, reducing oil consumption. Because heat is the primary cause of engine wear, the OHVI has a significantly longer life than competitive engines.
  • ”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.
  • Full pressure lubrication system: Superior lubrication to all vital bearings means better performance, less maintenance and significantly longer engine life. Now featuring a 2 year/200 hour oil change interval.
  • Low oil pressure shutdown system: Superior shutdown protection prevents catastrophic engine damage due to low oil.
  • High temperature shutdown: Prevents damage due to overheating.

GENERATOR

  • Revolving field: Allows for smaller, light weight unit that operates 25% more efficiently than a revolving armature generator.
  • Skewed stator: Produces a smooth output waveform for compatibility with electronic equipment.
  • Displaced phase excitation: Maximizes motor starting capability.
  • Automatic voltage regulation: Regulates the output voltage to ±2% prevents damaging voltage spikes.
  • UL 2200 Listed: For your safety

CONTROLS

  • Manual/Auto/Off switch: Selects the operating mode.
  • Utility voltage sensing: Constantly monitors utility voltage, setpoints 65% dropout, 75% pick-up, of standard voltage.
  • Utility interrupt delay: Prevents nuisance start-ups of the engine, adjustable 10-30 seconds.
  • Engine warm-up: Ensures engine is ready to assume the load, setpoint approximately 10 seconds.
  • Engine cool-down: Allows engine to cool prior to shutdown, setpoint approximately 1 minute.
  • Seven day exerciser: Operates engine to prevent oil seal drying and damage between power outages.
  • Timed Trickle Battery charger: Maintains battery charge level to insure starting.
  • Main Line Circuit Breaker: Protects generator from overload.
  • Electronic governor: Maintains constant 60 Hz frequency.

UNIT

  • Weather protective enclosure:
    • Ensures protection against mother nature. 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.
  • 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.

INSTALLATION SYSTEM

  • 1’ Flexible Fuel Line Connector: Easy Installation
  • Composite Mounting Pad

Includes:

  • True Power® Electrical Technology
  • Two Line LCD Digital Controller
  • Electronic Governor
  • 200 Amp Service Entrance Rated Automatic Transfer Switch
  • External Main Circuit Breaker, System Status & Maintenance Interval LED's and GFCI Duplex Outlet
  • Flexible Fuel Line Connector
  • Composite Mounting Pad
  • Natural Gas or LP Gas Operation
  • UL 2200 Listed

Specifications:

GENERATOR

  • Rated Maximum Continuous Power Capacity (LP): 20,000 Watts*
  • Rated Maximum Continuous Power Capacity (NG): 18,000 Watts*
  • Rated Voltage: 120/240
  • 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
  • Power Factor: 1
  • Battery Requirement (not included):
  • Group 26R
  • 12 Volts and
  • 525 Cold-cranking
  • Amperes Minimum
  • 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 Whisper-Test™ low speed exercise mode: 60

ENGINE

  • Type of Engine: GENERAC OHVI V-TWIN
  • Number of Cylinders: 2
  • Rated Horsepower: 36 @ 3,600 rpm
  • 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.
  • Operating RPM: 3,600
  • Fuel Consumption
    • Natural Gas cu.ft./hr.
      • 1/2 Load: 206
      • Full Load: 294
    • Liquid Propane ft3/hr (gal/hr)
      • 1/2 Load: 69 (1.89)
      • Full Load: 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.
  • 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.
  • 2.5 Amp Timed Trickle Battery Charger: Standard
  • Automatic Voltage Regulator w/Overvoltage Protection: Standard
  • Automatic Low Oil Pressure Shutdown: Standard
  • Overspeed Shutdown: Standard, 72Hz
  • High Temperature Shutdown: Standard
  • Overcrank Protection: Standard
  • Safety Fuse: Standard

Approximate Dimensions:

  • Depth: 48"
  • Width: 25"
  • Height: 29"

Approximate Weight:

  • Unit: 451 lbs
  • Shipping: 471 lbs

Warranty Information:

  • Manufacturers Warranty(authorized online retailer): 3 Years Parts and Labor

REVIEW SNAPSHOT®

by PowerReviews
Generac Pre Packaged 20000 Watts Air Cooled Home Generator
 
4.7

(based on 44 reviews)

Ratings Distribution

  • 5 Stars

     

    (34)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

98%

of respondents would recommend this to a friend.

Pros

  • Refrigerator / freezer (34)
  • Lights (33)
  • Furnace (31)
  • Television / radio (25)
  • Computer (19)

Cons

    Best Uses

      Most Liked Positive Review

       

      Good basic generator for infrequent backup of critical loads

      I don't lose power often but do not want to risk a basement flooding or no heat in winter or fridge full of spoiled food, etc, so this was well worth it to...Read complete review

      I don't lose power often but do not want to risk a basement flooding or no heat in winter or fridge full of spoiled food, etc, so this was well worth it to me. I am moderately handy and did the installation myself (after getting building permit). One aspect that confused me was the transfer switch manual states that power and control wires to the generator must be in different conduits and the diagrams all indicate this, however the corepower unit is clearly designed to run all in one conduit (the manual pictures show this plus there is only one knockout in the generator electrical interface. In the end I figured the transfer switch manual was written to accomodate larger generators as well and installed the wiring in one conduit (10ga thhn for pwr and 14ga thhn for control). I ran 8ga thhn from the 50A bkr in the utility panel. I left the house (load) grounds and neutrals in the main panel and just ran 12ga thhn from the xfer switch load outputs to a wire nut connection to the hot wire in the main panel (important that the hot wires are just passing through the utility panel, not terminated anywhere in there). A warning sticker came with the transfer switch to put on the utility panel to warn about the presence of feed-through hot wires from the transfer switch. So far i'm happy with the product. I like that the xfer switch that comes with this unit has you use your own wire (no harness) however I they should be more specific in the installation manual in the areas I mentioned. Also note that this engine is more basic than the guardian series (OHV vs OHVI), and therefore may not last as long. Also the corepower has less clean power regulation. If you are expecting to lose power a lot or are powering lots of electronics you should consider the guardian series, otherwise the corepower is a great option.

      VS

      Most Liked Negative Review

       

      Uneven power to computer is a real concern

      My house is small, so I didn't need a large generator. This unit powers most items in the house, but not central a/c or microwave. I have a home-based business so having...Read complete review

      My house is small, so I didn't need a large generator. This unit powers most items in the house, but not central a/c or microwave. I have a home-based business so having a generator for back-up power was important. When the generator was tested after installation, it pulsed uneven power to my computer equipment and very much had the potential of doing damage. The electrician had to buy & install a power conditioner so that the system is usable. Same electrician had massive issues with the installation, including 4 failed inspections. Though he had a lot of experience w/Generac system installations in general, this was the first PowerCore he installed, and apparently it posed a lot of problems for him. The generator goes through it's weekly test-run without any issues, but I've not had a real power outage yet to report on a real-life episode.

      Reviewed by 44 customers

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      5.0

      Best investment ever.

      By Cubbies

      from McHenry

      Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

      This has to be the best investment I have ever made to my home !!

      Comment on this review

       
      5.0

      great generator at a good price

      By gilawild

      from Mimbres

      Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

      having worked with generac generators before retiring, I was very familiar with their commercial generators used at communication sites. easy to install, worked first time, voltage and frequency right on spec. handled lights, refrigerator and 2 freezers with out a hitch. great for residential backup for lights and stuff.

      Comment on this review

       
      4.0

      I think it will prove to be a good investment.

      By johnb

      from South Bend

      Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

      Installed on a Friday in Nov 2013. Power failed for 27 hours beginning the following Sunday. Glad I had it. (As installed it ran at 62 Hz; the installer is looking into this.) 4 months is really too short a time to write a conclusive review, because long-term reliability is a key element. But so far I am satisfied.

      Comment on this review

       
      5.0

      Basic and simple works awesome

      By Ups driver

      from Shelby

      Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

      Highly recommended. I bought this unit to power my sump pumps in case of a power outage. One month after it was installed we lost power for 13 hours in Dec of 2013. This not only ran my pumps but my living room lights, basement lights, garage doors, microwave,refrigerators. I was the only one on my block with lights.

      Comment on this review

       
      5.0

      Outstanding value

      By pwlwp80

      from Flemington

      Pros

      • Furnace
      • Lights
      • Refrigerator / Freezer
      • Television / Radio
      • Well/water pump

      Cons

        Best Uses

          Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

          Excellent unit to keep the household running during a power outage. We weren't looking for a generator to power everything in the house all at once. The CorePower unit provides us with enough capacity to run our well, furnace, hot water heater, oven and selected lights at a great price. Installation was straightforward for our electrician as well.

          Comment on this review

           
          4.0

          Excellent back-up power source!

          By Peanut

          from Sussex

          Pros

          • Computer
          • Furnace
          • Lights
          • Refrigerator / Freezer
          • Television / Radio
          • Well/water pump

          Cons

            Best Uses

              Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

              Since installation in May of 2013,we have required the generator to kick-in 7 times during power outages ranging between 2 hours and 24 hours. It has performed perfectly each and every time.

              Comment on this review

               
              5.0

              Perfect piece of mind and value added product

              By IsitJim

              from Romeoville

              Pros

              • Computer
              • Furnace
              • Lights
              • Medical Equipment
              • Other
              • Refrigerator / Freezer
              • Security System
              • Sump pump
              • Television / Radio
              • Well/water pump

              Cons

                Best Uses

                  Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

                  the Corepower provides service to every room and key appliances. It keeps my wife and child safe while I am away. the installation was done in a day and was a professional job. I recommend this unit to anyone with power issues or looking for piece of mind when the storm hit. when the lights go out you can count 10 seconds or less and power is restored.

                  Comment on this review

                   
                  3.0

                  defect in control prompt tech respons

                  By landscape

                  from Undisclosed

                  Pros

                  • Entire Home

                  Cons

                    Best Uses

                      Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

                      I will rate again if given the opportunity once I experience how long the ordered part takes to get to me and installed. Generator works fine and starts promptly when grid fails however it will not go back to grid when power is restored hopefully all will get corrected soon. Condition was there from installation

                      Comment on this review

                       
                      4.0

                      Minimum Fuel Requirements

                      By Dale

                      from Winterville Plantation

                      Pros

                      • Entire Home

                      Cons

                        Best Uses

                          Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

                          The Generac Company should inform Customers that these units will not run on small propane cylinders such as 20lb barbecue cylinders. They must have at least a 125 gallon propane tank and a minimum of 1/2 inch piping to operate. This information could have saved us a couple hundred dollars in parts, piping and propane tanks!

                          Comment on this review

                           
                          5.0

                          our new core 7k generator

                          By PHILL P

                          from parsippany

                          Pros

                          • Computer
                          • Furnace
                          • Lights
                          • Refrigerator / Freezer
                          • Sump pump
                          • Television / Radio

                          Cons

                            Best Uses

                              Comments about Generac Pre Packaged 20000 Watts Air Cooled Home Generator:

                              iT WILL DO THE TRICK FOR US SO FAR WE HAVE NOT NEEDED TO USE THE GENERATOR. BUT AT LEAT WE NOW HAVEPEACE OF MIND.

                              Comment on this review

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                              Generac Pre Packaged 20000 Watts Air Cooled Home Generator

                              Generac Pre Packaged 20000 Watts Air Cooled Home Generator

                              UPC Code: 696471171006
                              Discontinued


                              More reasons to buy the Generac 5744 from Abt Electronics
                              • Abt.com is an authorized dealer (Learn More).
                              • The Generac 5744 is Brand New.
                              • The Generac 5744 Ships in a Factory Sealed Box.
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