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Heating & Air Conditioning » Generators » Generac » Automatic Standby Generators » Automatic Liquid-Cooled Generators

Generac QT04854KNAX QuietSource Liquid-Cooled 5.4L 48kW 277/480 Volt 3-Phase Natural Gas Aluminum Generator

Item #:18678 Model #:QT04842KNAX
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Regular Price $14415.00
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Total w/ Savings $13,550.10
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Generac QT04854KNAX QuietSource Liquid-Cooled 5.4L 48kW 277/480 Volt 3-Phase Natural Gas Aluminum Generator

Generac QuietSource Series Commercial Generator

When it comes to picking a generator for your business, you need something you can rely on to get the job done. Great fuel efficiency, quiet running, and the durability to stand up to Mother Nature are also nice to have. With a Generac QuietSource Series Commercial Generator, you get the power you need to keep your business moving and all the bells-and-whistles that make it the ultimate standby generator series on the market. A QuietSource generator is the kind of machine you can safely forget about until you need it, then, when disaster strikes, it’s ready to do its job to keep your warehouse, office, or workshop running when everyone else is blacked out.

What makes a Generac QuietSource Series Commercial Generator such a best buy is its low operating decibel level, long lasting engine life, and superb fuel efficiency. It achieves that through using a low speed, automotive style liquid-cooled engine that runs at only 1800 rpm during a power outage. This Generac design gives you all the power you need without breaking your budget or wearing out your engine. Every QuietSource commercial generator also features Generac’s patented Quiet-Test mode, a weekly system test so quiet you’ll barely notice, and one that consumes less fuel than  similar competitor models.

Great internal working components are only half the story of a Generac QuietSource Series Commercial Generator. Every machine is protected by an aluminum, all-weather cabinet to keep out damaging weather elements. The aluminum does double duty; it’s a durable material and also naturally corrosion resistant even in high salt, seaside locations. Add Generac’s two year standard warranty on top, and you have a deal that’s sure to please any business manager keeping a close eye on the bottom line.

Generac QuietSource 48kW Commercial Generator

Keeping your business operating during a power outage can be very important. The last thing you need when you’re trying to meet a tough contract is to lose even a few precious hours because the electricity failed. The best way to make sure that doesn’t happen is to invest in a commercial generator. There are a lot of such systems on the market and choosing the right one can be tough, but when you choose a Generac generator you can be assured you’re making the right choice. Generac is an American company and they’ve been in business since 1959. That’s given them plenty of time to perfect their QuietSource commercial generator series.

The Generac QuietSource 48kW Commercial Generator is the most powerful machine in its line, and exactly what a business needs to keep going when the electricity fails. The QuietSource 48kW is great for small or medium sized businesses, convenience stores, restaurants, larger homes, or gas stations. It’s powerful low-speed, liquid cooled engine operates longer and uses less fuel than competitor products while still producing the necessary watts. Meanwhile, Generac’s Nexus Controller delivers unparalleled generator monitoring and management thanks to a dual line, tri-lingual LCD display. If that weren’t enough, Generac also fits the QuietSource 48kW with Quiet-Test, a self-test that runs every week, and so quietly you’ll forget the generator is there.

Of course, you won’t forget about a QuietSource 48kW when the power goes out and you can rest easy that it will work when that happens. Every QuietSource 48kW commercial generator is protected by an aluminum cabinet designed to stand up to the worst weather conditions in the country. And, since it’s aluminum, its naturally resistant to the corrosive effects of the salty environment you’ll find on either coast. You’re also protected by Generac’s two year warranty on every QuietSource 48kW they sell. That’s just one more great feature that make this commercial generator an easy choice when it comes to picking the right model for your business.

Generac makes it easy and cost effective to configure the exact backup power system your home or business requires. A standby generator often pays for itself in just one power outage by keeping the security system running, large appliances operating and providing a safe haven for your family or customers in an emergency.

Premium features are standard on the ultimate standby generator. A low speed, super quiet, liquid-cooled engine, provides greater fuel efficiency and a longer life for the most environmentally friendly unit on the market. Ideal for large residential and small to medium commercial applications.

Features:
  • Liquid-cooled engine
  • 3-phase output
  • Clean burning and highly reliable continuous fuel source
  • Super silent neighbor-friendly Quiet-Test mode for a weekly self diagnostic exercise
  • Aluminum, all-weather enclosure prolongs the life of your generator with corrosion resistant protection from the elements, making it ideal for salt-air coastal climates
  • Hour meter monitors run time between maintenance sessions
  • R-series digital controller, with built in governor control and voltage regulator, monitors utility voltage, oversees transfer switch operation and controls the Quiet-Test exercise
  • Dynamic and static battery charger
  • High flow low noise factory engineered exhaust system
  • Watertight electrical connectors
  • Rodent proof construction
  • All components easily accessible for maintenance
  • Requires compatible Generac RTS model transfer switch, sold separately
  • Good Housekeeping Seal of Approval
  • Unit not for use or sale in California, CARB compliant units available
Includes:
  • Oil Drain Extension
  • Radiator Drain Extension
  • Battery Charge Alternator
  • 2 Amp Static Battery Charger
  • Battery Cables and Rack
  • Flex Fuel Line
  • Fan and Belt Guards
  • Instruction Sheets
Specifications:

Type: Commercial Standby
Model: QuietSource
Enclosure Type: Aluminum
Phase: 3
Rated Watts: 48 kW
Length: 77-in
Width: 34-in
Depth: 45-in
Weight: 1,455 lbs.
Engine Size: 5.4L
Operating RPM: 1,800
Voltage: 277/480
Cooling System: Liquid-Cooled
Carb Compliant: No
Noise Level: 65 dB at 23 ft.
Transfer Switch: Sold Separately
Transfer Switch Required: RTS
Battery Included: No
Battery Type: Group 24F, 525CCA
Fuel Type: Natural Gas
Engine Cooling Air Flow: 2,460 ft3/min.
Coolant Capacity: 3.0 Gallons
Natural Gas Fuel Consumption at Full Load: 655 Cubic Feet Per Hour
Liquid Propane Fuel Consumption at Full Load: 7.2 Gallons Per Hour
Horsepower: 75 HP
Combustion Air Requirement: 235 CFM
Quiet Test Mode: Yes
Auto Shutdown: Yes
Rotor Insulation: Class H
Rated AC Frequency: 60Hz
Power Factor: 1
Cylinder Arrangement: V-6
Valve Seats: Precision Ground and Hardened
Ignition System: Solid-state
Governor System: Electronic
Compression Ratio: 9.3
Starter: 12 Vdc
Engine Warm-Up: 5 Seconds
Engine Cool-Down: 1 Minute
Total Harmonic Distortion: Less than 5%
Enclosure Color: Grey

Documents:

  1. Generac Consumer Commercial Generator Products Brochure.
  2. Generac Consumer Commercial Generator Products Brochure In Spanish.

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