KOHLER POWER SYSTEMS
FEATURES of Kohler residential power systems that results in a superior product for the
Superior Brand recognition and history of reliability, quality, service.
o Standard sound attenuation 65 dB(A), 8.5RES and 12RES. Others typically over 72 which is
o Rodent proof construction – no hassles.
Environmentally Safe. EPA and CARB (California Air Resources Board) certified.
ADC 2100 Advanced Digital Controller (mod. 8.5, 12, 15, 30). The Only digital-electronic controller in industry.
o Digital Electronic governor for precise frequency regulation: +/- 0.5 % (1/3 hz).
o Digital voltage regulator : +/- 1.5% no load to full load.
o LED Display, diagnostics.
Others have frequency swings up to +/- 3.0 hertz - a range (9) times larger!! Which can be detrimental to
sensitive electronic devices and computer equipment.
Most precise voltage and frequency regulation in industry - clean power (often better than utility service) that is
safe for digital equipment / sensitive electronics / computers / home offices / appliances.
(NOTE: A generator system is not a UPS system. With any power outage situation – homeowners should be
advised to install UPS systems on all their sensitive electronics. It is the only absolute way of ensuring
uninterrupted power to their devices)
DSAM Digital Spark Advance Module. Optimizes timing for LP and Natural Gas resulting in greater power and
motor starting capability.
o This means POWER. On LP FUEL, the KOHLER 12RES is the only 12kW unit in the industry that will
start and run a 4-ton air conditioner with 6 kW (25 amps) of pre-load!!!
From the engineering department at Kohler:
“The 12RES is able to start a typical 4 Ton Central Air conditioner unit with the genset carrying half
load. Based on lab testing it will start 140 amps of compressor locked rotor inrush current with 25 amps
of preload at 98 degrees F outside temperature. The compressor inrush current is listed on the
nameplate of the air conditioner.”
(The same is true for the lower, natural gas rating, however the pre-load must be limited to 4 kW, or about
Stronger Engines, Faster Engines.
o Heavy duty industrial grade engines for the residential product line:
See DSAM discussion above.
KOHLER: 8.5 and 12 kW, air cooled
GENERAL MOTORS 15 kW through 100 kW, liquid cooled
Others are using a variety of second tier manufacturers such as Briggs and Stratton.
o Response time after power outage is less than 10 SECONDS. Others as high as 30 seconds.
The Kohler 12RES is the strongest, fastest, cleanest, most precise AND the most quiet 12 kW
generator system available………
…To those ADVANTAGES, add EVEN MORE……..
Oil Consumption: others predict up to 0.40 ounces per hour of oil consumption by air-cooled units.
Inconvenient and potentially damaging during long term outages.
Oil Changes: Kohler units use an integral oil cooler, allowing recommended oil change frequency of 100 hours.
Others require oil changes every 50 hours of operation.
Valve Clearance: Generac requires adjustment of the valve clearance on the 12 kW after the first 50 hours of
operation. Most homeowners do not want this headache and could not perform the work – nor do they want the
consequences of failing to do it.
Heavier duty transfer switches rated NEMA 1 and 3R - with higher current withstand ratings. Others use
NEMA 1, indoor only, light duty current ratings.
Lower Fuel Pressure Required. Low, 7 to 11 in. wg. pressure requirement provides more flexibility of natural
gas applications than others that require 11-14 in. wg.
Single point, local service and parts availability
With KOHLER, the homeowner receives heavier construction, higher quality components,
better performance, more features and better materials.
These technical features alone demonstrate why, in all fairness, there would be a price
difference for a KOHLER Power System. While never the cheapest option, KOHLER
provides the best quality, construction, design and features – and therefore provides the
Just as we easily recognize that there IS a difference between Mercedes and Hyundai…
There IS a difference between KOHLER and the others.