Generator Specifications; Engine Specifications; Common Service Parts - Rheem GEN20AD-E Operator's Manual

Generator Specifications

16k Watt
Rated Maximum Load Current* (at 25°C/77°F, LP)*:
at 240 Volts ....................................................... 66.8 Amps
Rated AC Voltage ............................................. 120/240 Volts
Phase ................................................................. Single phase
Rated Frequency ....................................................... 60 Hertz
Generator Breaker ......................................................80 Amp
Normal Operating Range ... -25°F (-28.8°C) to 104°F (40°C)
Output Sound Level 69.1 dB(A) at 23 ft. (7 m) at normal load
Shipping Weight ............................................565 lb (256 kg)
* Natural gas rating will depend on specific fuel but typical derates are between 10 to
20% off the LP gas rating.

Engine Specifications

Displacement ............................................. 60.60 ci. (993 cc)
Bore ....................................................... 3.405 in. (86.5 mm)
Stroke .................................................... 3.366 in. (85.5 mm)
Spark Plug Gap ...................................... 0.020 in. (0.51 mm)
Spark Plug Torque ....................................180 lb-in. (20 Nm)
Armature Air Gap ............ 0.005 - 0.008 in. (0.13 - 0.20 mm)
Intake Valve Clearance .... 0.004 - 0.006 in. (0.10 - 0.15 mm)
Exhaust Valve Clearance . 0.004 - 0.006 in. (0.10 - 0.15 mm)
Oil Type ......................................................... 5W30 Synthetic
Oil Capacity ( ) .......................78 - 80 oz. (2.3 - 2.4 L)
with filter
Engine End Cover Bolt ................................220 lb-in (25Nm)

Common Service Parts

Air Filter
Oil -- Synthetic
Oil Filter
Resistor Spark Plug
Long Life Platinum Spark Plug
Maintenance Kit
*This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards
Association) standard C22.2 No. 100-04 (motors and generators).
Power Rating
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 (Small
Engine Power & Torque Rating Procedure), and rating performance has been obtained and corrected in accordance with SAE J1995 (Revision
2002-05). Torque values are derived at 3060 RPM; horsepower values are derived at 3600 RPM. Net power values are taken with exhaust and air
cleaner installed whereas gross power values are collected without these attachments. Actual gross engine power will be higher than net engine
power and is affected by, among other things, ambient operating conditions and engine-to-engine variability. Given the wide array of products on
which engines are placed, the gas engine may not develop the rated gross power when used in a given piece of power equipment. This difference
is due to a variety of factors including, but not limited to, the variety of engine components (air cleaner, exhaust, charging, cooling, carburetor,
fuel pump, etc.), application limitations, ambient operating conditions (temperature, humidity, altitude), and engine-to-engine variability. Due to
manufacturing and capacity limitations, Briggs & Stratton may substitute an engine of higher rated power for this Series engine.
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20k Watt
Rated Maximum Load Current* (at 25°C/77°F, LP)*:
at 240 Volts ....................................................... 83.3 Amps
Rated AC Voltage ............................................. 120/240 Volts
Phase ................................................................. Single phase
Rated Frequency ....................................................... 60 Hertz
Generator Breaker ....................................................100 Amp
Normal Operating Range ... -25°F (-28.8°C) to 104°F (40°C)
Output Sound Level 69.1 dB(A) at 23 ft. (7 m) at normal load
Shipping Weight ............................................580 lb (263 kg)
* Natural gas rating will depend on specific fuel but typical derates are between 10 to
20% off the LP gas rating.
* Normal load = 5kW (1/4 load)
Displacement ............................................. 60.60 ci. (993 cc)
Bore ....................................................... 3.405 in. (86.5 mm)
Stroke .................................................... 3.366 in. (85.5 mm) ................ .............
Spark Plug Gap ...................................... 0.020 in. (0.51 mm) ................ ..............
Spark Plug Torque ....................................180 lb-in. (20 Nm) ............... ...............
Armature Air Gap ............ 0.005 - 0.008 in. (0.13 - 0.20 mm) Gap ap ............ ... 0
Intake Valve Clearance .... 0.004 - 0.006 in. (0.10 - 0.15 mm) e Clearance Clearance
Exhaust Valve Clearance . 0.004 - 0.006 in. (0.10 - 0.15 mm) t Valve Clear alve Clea
Oil Type ......................................................... 5W30 Synthetic Type Type......... .......
Oil Capacity ( Oil Capacity Oil Capaci ) .......................78 - 80 oz. (2.3 - 2.4 L)
with filter
Engine End Cover Bolt ................................220 lb-in (25Nm) Engine E gine E
Air Filter
Oil -- Synthetic
Oil Filter
Resistor Spark Plug
Long Life Platinum Spark Plug
Maintenance Kit
.... ...
841856
100074
842921
692051
5066
6036
31