Generac RG02224JNAX 22/22kW 120/240-Volt 3-Phase Automatic Standby Generator

by Generac
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Owner's Manual


Wi-Fi Manual



  • For small commercial buildings with 120/240V 3-Phase service
  • Runs off natural gas or LP fuel source
  • Low-speed exercise mode for quieter weekly tests;61 dB @ 23'
  • Two-Line LCD Display provides service and maintenance intervals
  • Operates at half the speed of other engines (1800 vs 3600 RPM)
  • Powerful Generac in-line 4-cylinder liquid-cooled engine
  • Aluminum Enclosure is Corrosion-resistant material ideal for salty air conditions
  • Lockable, external viewing window for quick status check
  • High coolant temp, low coolant, low oil pressure and overspeed auto-shutdown
  • Easily check generator status via computer, tablet or smartphone with Mobile Link
  • UL 2200 Listed For Safety and Certified Power Ratings
  • Improved stub ups and electrical connection access decrease installation costs. All connections are dual conductor rated, and the implementation of quick connects for the control wires, completely eliminates the need for crimping or lugging.
  • Improved customer connection access will decrease installation costs.
  • Customize your system based on your actual application
What's in The Box
  • 22kW 120/240-Volt 3-Phase Protector Automatic Standby Generator
  • Mounting Pad Sold Separately
  • Owners Manual
  • 5-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
Sku RG02224JNAX
Brand Generac
Engine Type Generac 2.4L 4-Cylinder
Engine Displacement 2,400cc
Running Wattage 22,000 Watts
Engine Speed 1,800 Rpm
Voltage 120/240V
Rated Amperage 66A at 240-Volts
Phase Three
Frequency 60 Hz
Low Oil Alert/Shutdown Yes
Coling System Liquid cooled
Fuel Type LP/Natural Gas
NG Consumption at 50-Percent Load 190 ft3/hr
NG Consumption at 100-Percent Load 316 ft3/hr
LP Consumption at 50-Percent 2.1 gal/hr
LP Consumption at 100-Percent 3.4 gal/hr
Decibel Rating at 7m 61 dBA
Enclosure Material Aluminum
Lenghth 62.2 in.
Width 30.6 in.
Height 38.6 in.
Product Weight 843 lbs.
Shipping Weight 971 lbs.
This generator provides essential circuit power protection for your home during a power outage, ensuring that essential appliances maintain power. This standby generator is automatic and offers protection year-round, for less than the cost of central air conditioning.
Every Guardian Series home standby generator comes with Mobile Link™ Remote Monitoring. Remote Monitoring is FREE, and allows you to monitor the status of your generator from anywhere in the world. Use a smartphone, PC, or tablet to access generator information, such as the current operating status and maintenance alerts. By connecting your account you have access to authorized service dealers for fast, friendly, and proactive service.
Generac generators are ideal for weathering storms and power outages. Their automatic backup power gives you piece of mind that your home and appliances are protected.
Generac generators and engines are designed, engineered and assembled in the USA using domestic and foreign parts.
The Generac G-Force Engine is built to handle the stressors of generator use. This results in power that’s more reliable and requires less routine maintenance than competitor engines. Generac’s new G-Force engine is purpose built and pressure-lubricated. It features hydraulic lifters, which improve engine performance and extending the life of the product. (Hydraulic lifters only available on the 13 & 16 kW.)
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