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Kohler 12 kW Generator – 12RESV Air Cooled

The Kohler 12 kW Air-Cooled Generator (RESV) is a powerful and reliable backup power solution for homes and small businesses. With 12 kilowatts of consistent power, it keeps your essential systems and appliances running smoothly during outages. Designed with a durable air-cooled engine, this generator ensures quiet operation, low maintenance, and a compact design for effortless installation. Trust Kohler for dependable performance and peace of mind when it matters most.

Descriptions

Kohler 12RESV Air-Cooled Generator

Key Features:

  • Model Number: 12RESV
  • Rated Power (LPG/NG): 12 kW / 11 kW
  • Voltage (Single-Phase, 60 Hz): 120/240 V
  • Amps (LPG/NG @ 240 V Single-Phase): 50 / 45.8
  • Engine/Alternator RPM: 3600 RPM
  • Three-Phase Capability: No
  • Peak Motor Starting kVA (240 V, 35% Dip): 16.8
  • Fuel Type: LPG/NG
  • Engine Cooling: Air-Cooled
  • Fuel Pressure Requirement: NG: 3.5–11 in H2O / LP: 7–11 in H2O
  • Enclosure Material: Powder-Coated Steel
  • Sound Output dB(A) (at 23 Ft): 64 (Exercise) / 69 (Normal Operation)
  • Dimensions: 28" x 30" x 32"
  • Digital Voltage Regulation: +/- 1.0%
  • Excitation System: PowerBoost Brushed with Auxiliary Winding
  • Warranty: Five-Year Premium Limited Warranty
  • 18-inch Reduced Setback Installation: Yes
  • Mossy Oak® Patterns: Not Available
  • Color Options: Standard Kohler Finish

Engine Specifications:

  • Engine Type: 725 CC KOHLER 7000 Series OHV KT725
  • Horsepower: 21.4 HP
  • Configuration: V-Twin
  • Valve System: Solid Pushrods

 

Why Choose the Kohler 12RESV Generator?

The Kohler 12RESV Generator is a compact and reliable backup power solution for homes and small businesses. Delivering 12 kW (LPG) or 11 kW (NG) of consistent power, it keeps your essential systems running smoothly during outages. Powered by the durable KOHLER 7000 Series V-Twin engine, it offers efficient and dependable performance. Its powder-coated steel enclosure ensures long-lasting durability, while PowerBoost technology provides seamless motor starting capability. With its reduced setback installation feature, it’s designed for convenience and efficiency.

Order your Kohler 12RESV Generator today for reliable backup power and peace of mind!

Additional Information

Additional information

Dimensions28 × 30 × 32 in

FAQs

What is PowerBoost™ Technology, and How Does it Benefit the Generator's Performance?

PowerBoost™ technology is an advanced feature engineered to enhance a generator's efficiency and power output. At its core, PowerBoost™ allows the generator to kick-start large electrical loads with ease, ensuring that your major appliances run smoothly without interrupting power to smaller devices.
Benefits of PowerBoostâ„¢ Technology:
• Efficient Power Distribution: This feature ensures that electricity is distributed effectively, prioritizing demand without causing fluctuations or drops in power supply.
• Seamless Operation: You can operate heavy-duty appliances confidently, knowing that PowerBoost™ provides the surge capacity needed during startup phases.
• Enhanced Reliability: With PowerBoost™, the generator maintains steady performance, allowing multiple devices to run simultaneously without compromising functionality.
Ultimately, PowerBoostâ„¢ technology provides a seamless, reliable energy solution that enhances overall generator performance, making it indispensable for both residential and commercial needs.

What are the technical specifications of the generator's engine and alternator?

Engine and Alternator Technical Specifications
Engine Details:
• Model and Description: The engine, manufactured by KOHLER, is identified as model CH740.
• Configuration: It features a V-2 cylinder arrangement, which ensures robust performance and efficiency.
• Displacement and Power: With a displacement of 0.725 liters (or 44 cubic inches), it generates between 20.5 HP on natural gas (NG) and 23.6 HP on liquid propane (LP).
• Operational Speed: Engine operates at a steady 3600 RPM, providing reliable and consistent performance.
• Fuel Capabilities: Versatile in fuel use, capable of running on both natural gas and liquid propane. When using natural gas at a 50% load, expect a fuel consumption rate of approximately 124 cubic feet per hour. For liquid propane, the rate is around 60 cubic feet per hour.
Alternator Specifications:
• Type and Design: The alternator is a 2-Pole, Rotating Field configuration, designed for effective energy transformation.
• Voltage and Frequency: It functions across multiple voltages, primarily 120/240 V at 60 Hz, with frequency capabilities extending to 50 Hz.
• Phase and Regulation: Operates in a single-phase mode with digital voltage regulation maintaining stability within ±1.5%.
This combination of advanced engine and alternator specifications ensures the generator delivers top-tier performance, suited for both off-grid and utility backup applications.

How Does the Generator Ensure Premium Power Quality for Connected Appliances?

The generator is engineered to provide superior power quality, safeguarding your delicate electronics and smart appliances. Here's how it achieves this:
1. Advanced Digital Voltage Regulation:
o The generator continuously monitors output voltage, ensuring it remains consistent.
o This stabilization prevents voltage spikes that could damage sensitive electronic components.
2. Precise Frequency Control:
o By maintaining a stable frequency, the generator ensures that devices operate smoothly.
o This is crucial for smart appliances that rely on precise frequency to function optimally.
3. Harmonic Distortion Minimization:
o The generator minimizes harmonic distortion, reducing electrical noise.
o This results in cleaner power, protecting the integrity of connected devices and extending their lifespan.
By offering these key features, the generator ensures that your appliances receive reliable and safe power, preserving their functionality and enhancing their longevity.

What is the peak motor starting capacity of the generator?

The generator boasts an exceptional ability to handle high-demand start-ups by effectively powering a standard 4-ton air conditioner. Even when the air conditioner is running, the generator can continue supplying energy to other household appliances and electronics simultaneously.

What is the fuel consumption rate when using natural gas or ligquid propane at 50% load?

When operating at 50% load, fuel consumption varies depending on whether you're using natural gas (NG) or liquid propane (LP). For natural gas, you can expect a fuel usage rate of approximately 124 cubic feet per hour (cfh). In contrast, when using liquid propane, the consumption rate drops to about 60 cfh.
These values highlight the differences in efficiency and consumption between the two fuel types at partial load. Selecting the appropriate fuel can depend on factors such as availability, cost, and energy needs.

What Conveniences Does the Generator Offer for Installation and Operation?

When it comes to ease of installation and smooth operation, this generator stands out with several key features that simplify your experience.
• Advanced Digital Control: Designed to work seamlessly with modern electronics, this feature ensures users have precise control and reliable performance.
• Quiet Operation: You won't have to worry about disturbing your neighborhood, as it runs at a noise level similar to a typical central air conditioner, making it perfect for residential areas.
• Sturdy Steel Enclosure: Built to last, it comes with a steel enclosure coated with automotive-grade paint, providing exceptional corrosion resistance and durability.
• Fuel Flexibility: The generator can run on either natural gas or liquid propane (LPG) with an easy switch mechanism, allowing you to choose the best fuel option for your needs right from the field.
• Simplified Installation: Featuring a built-in base, there is no need for a separate concrete mounting pad. Additionally, a straightforward terminal block simplifies the process, making field connections a breeze.
By incorporating these conveniences for both installation and operation, this generator ensures a user-friendly experience from start to finish.

How quickly can the generator restore power after an outage?

When the power goes out, you can count on this generator to kick in rapidly. Within a mere 10 seconds, it springs into action, ensuring your heating, air conditioning, essential appliances, and electronic devices are back up and running. Say goodbye to prolonged power interruptions and enjoy seamless restoration, almost in the blink of an eye.

What type of fuel does the 12 kW generator use?

When you're powering up with a 12 kW generator, it's crucial to know your fuel options. This generator model offers flexibility by operating on both natural gas and liquefied petroleum gas (LPG).
Key Benefits:
• Natural Gas: Convenient for residential areas with continuous supply through pipelines. It lets you enjoy seamless power without the hassle of refueling.
• LPG (Liquefied Petroleum Gas): Ideal for locations without natural gas infrastructure. This option provides a portable and efficient fuel source, often stored in tanks for easy access.
Choosing between these options depends on your specific situation, including availability and infrastructure. Either way, having dual-fuel capability enhances the generator's versatility.

Does the generator require a concrete pad for installation?

No, this generator does not require a concrete pad for installation. It features an integrated mounting pad, eliminating the need for an expensive concrete base. This design makes it easier for contractors to set up the unit, saving both time and money. Not only is it practical, but your budget will also benefit from not having to invest in additional materials or labor for a concrete foundation.

What are the differences in power output between using natural gas and liquid propane?

Differences in Power Output: Natural Gas vs. Liquid Propane
When comparing natural gas (NG) to liquid propane (LP) as fuel sources for generators, you'll notice variations in power output and amperage. Here's a breakdown of their differences:
Power Output
• Liquid Propane (LP): Delivers a robust output of 12 kW. This makes it an excellent choice for those needing higher power generation.
• Natural Gas (NG): Provides a slightly lower output at 10.4 kW. While less than propane, it can still meet substantial energy needs.
Electrical Current
• LP Amperage: Supplies 50 amps, ensuring a strong, stable power flow particularly suited for demanding applications.
• NG Amperage: Generates 43 amps, which is adequate for most residential and some industrial uses, but slightly less robust than its LP counterpart.
Choosing between NG and LP involves weighing these power output differences against your specific energy needs, availability, and cost implications.

Is the 12 kW generator suitable for off-grid applications?

Absolutely, the 12 kW generator is an excellent choice for off-grid applications. This generator is designed to make the most of your remote setup with its innovative features tailored for efficient energy use.
• Off-Grid Ready: Specifically engineered for environments lacking access to the main power grid, this generator ensures you remain powered up, whether in a secluded cabin or during a remote work mission.
• Smart Power Management: Equipped with a state-of-the-art controller, it manages power consumption by entering a hibernation mode when energy demand is low. This feature helps to conserve valuable battery life and extends the duration of your power supply.
• Reliable Engine Performance: Built to handle demanding conditions, the generator features a robust, non-standby-rated engine. This ensures longevity and consistent performance even in the toughest of off-grid situations.
In summary, if you're in search of a dependable power solution tailored for off-grid environments, this 12 kW generator stands out for its efficiency and smart energy-saving capabilities.

What certifications and listings does the generator have?

Certifications and Listings of the Generator
1. Compliance with Standards
The generator adheres to major industry standards and certifications. It ensures safety and efficiency during operations, making it a reliable choice for various applications.
2. Environmental Certification
The generator meets stringent environmental guidelines, ensuring minimal impact on nature while delivering power effectively.
3. Safety Recognitions
Recognized for its safety features, the generator includes multiple protections to safeguard both operators and equipment.
4. Performance Listings
The generator is listed for high performance in extreme conditions, making it suitable for a wide range of environments.
These certifications and listings underscore the generator's commitment to quality, safety, and environmental responsibility.

What are the dimensions and weight of the generator?

When considering the size and heft of the generator, it measures 44.2 inches in length, 28.6 inches in width, and stands at a height of 31.6 inches. In terms of weight, the generator tips the scale at 400 pounds or 182 kilograms. These dimensions and weight make it essential to plan accordingly for its placement and transportation.

What is the warranty coverage for the 12 kW generator?

Warranty Coverage for the 12 kW Generator
Investing in a 12 kW generator comes with the reassurance of a comprehensive warranty plan designed to protect your purchase. Enjoy peace of mind with a robust 5-year warranty or up to 2,000 operational hours, whichever comes first.
Here's what's included:
• Parts: All necessary replacement parts are fully covered, ensuring your generator runs smoothly.
• Labor: Should any repairs be needed, labor costs are included, saving you from unexpected expenses.
• Travel: Coverage extends to travel costs for technicians, making sure help arrives at your doorstep, wherever you are.
With this warranty, you can trust that both performance and support are ready when you need them most.

How loud is the generator during operation?

When considering the noise level of a generator, it's essential to understand how it performs under different conditions. During weekly exercise routines, the generator operates at a noise level of around 65 decibels. This is comparable to the ambient noise of a conversation in a restaurant or office background music.
Even when the generator is running at full-speed, the sound level remains at 65 decibels. This makes it relatively quiet, especially when compared to the typical noise of other household appliances or tools, ensuring minimal disruption to your daily activities.

What type of corrosion protection does the generator's enclosure have?

The generator's enclosure is built to withstand harsh environments using a steel housing treated with automotive-grade paint. This specialized coating provides an advanced level of protection against corrosion by creating a durable barrier that shields the enclosure from moisture and environmental wear. Designed to ensure longevity, this treatment is akin to the high-quality paints used in the automotive industry, known for their superior resistance

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RATINGS: Standby ratings apply to installations served by a reliable utility source. All single-phase units are rated at 1.0 power factor. The standby rating is applicable to variable loads with an average load factor of 80% for the duration of the power outage. No overload capacity is specified at this rating. Ratings are in accordance with ISO-3046/1, BS5514, AS2789, and DIN 6271.

* Single-point sound levels are the lowest of eight points measured around the generator. 14RCA and 20RCA sound levels are measured at the front of the generator. Actual sound levels may vary based on installation parameters.

† 18-month or 1,000-hour warranty offered on nonstandby (off-grid) applications of 6VSG, 12RES, and 14RCA. Five-Year Premium Limited Warranty includes 10RESV, 12RESV, 12RES, 14RCA, 20RCA, 26RCA, 24RCLA, 30RCLA, 38RCLC, 48RCLC, and 60RCLB.

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