HomeKohlerKohler 24RCL

Kohler 24RCL Generator Set

The Kohler 24RCL is a 24 kW (24 kVA) natural gas standby generator set powered by a Kohler KG2204 engine. It is available at 120/240 V, 1-phase, 60 Hz and rated 87 A. It holds about 4.2 L (1.1 gal) of oil and 13.2 L (3.5 gal) of coolant, with a maximum ambient rating of 45 °C. Starting uses 1 group-24 battery rated 630 CCA at 12 V. The set measures 1880×836×1169 mm (74.0×32.9×46.0 in), weighs about 572 kg (1261 lb) and produces 61 dBA at 7 m.

24 kW
Standby
2.2 L
Displacement
4.2 L
Oil capacity
7
Document types

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Specifications

Fuelnatural gas
Frequency60.0 Hz
Standby power24 kW
Standby kVA24
ControllerRDC2
Oil capacity4.2 L
AlternatorKohler 4D5.0
Voltage options120/240 V
Phase1
Rated current87 A
Power factor1.0
Battery group24
Battery cranking630 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity13.2 L
Max ambient45 °C
Dimensions (L×W×H)1880×836×1169 mm
Dry weight572 kg
Sound level61.0 dBA @ 7 m

Engine

Kohler KG2204
Oil capacity4.2 L
Coolant capacity13.2 L
Displacement2.2 L
AspirationNatural Aspiration
Rated speed1800 rpm

Maintenance & consumables

for the Kohler KG2204
ItemSpecCapacityPart #Interval
Air filter400 hr find
Oil filter×1120 hr find
Belt5–7 mm (0.20–0.28 in.) find
Coolant50% ethylene glycol and 50% clean, softened water13.2 L
OilSAE 5W-30, API service class SJ or higher (for colder environments); 10W-30, API service class SJ or higher (for hot environments)4.2 L120 hr

Common questions

What is the power rating of the Kohler 24RCL?

The Kohler 24RCL is rated 24 kW standby (24.0 kVA).

What engine does the Kohler 24RCL use?

The Kohler 24RCL is powered by the Kohler KG2204 engine.

What fuel does the Kohler 24RCL use?

The Kohler 24RCL runs on natural gas.

What is the oil capacity of the Kohler 24RCL?

The Kohler KG2204 engine in the Kohler 24RCL has an oil capacity of 4.2 liters.

What alternator does the Kohler 24RCL use?

The Kohler 24RCL uses a Kohler 4D5.0 alternator.

Troubleshooting

8

Fault codes

CodeMeaningCauseRemedy
GeneratorVoltageImbalance OR GeneratorComBusPhaseDifferenceOORGenerator was overloaded.Generator breaker in IQ System Controller tripped, and the generator is disconnected.The system will try to reconnect the generator in 5 minutes. You should: • Open IQ System Controller door, turn off the generator breaker and turn it on again. (When you open IQ System Controller, the generator breaker lever will not be in ON position) • Ensure you do not overload the system while the generator is running.
EnpowerGeneratorVoltHighTrip OR EnpowerGeneratorVoltLowTrip OR EnpowerGeneratorFreqHighTrip OR EnpowerGeneratorFreqLowTripGenerator voltage and/or frequency out of spec while in generator mode and generator is connectedThe generator gets disconnected
GeneratorStartFailedGenerator not startingThe generator does not start as selected in user preferences.Check if the generator 2-wire start/stop wiring to IQ System Controller is loose. Check whether the generator breaker at the unit was tripped (if so turn the breaker off and then on. Also switch the controller to the auto position), whether the generator is out of fuel, or the starting battery of the generator was dead. Contact your installer or Enphase customer support if the problem persists.
GeneratorStopFailedGenerator not stoppingGenerator continues to run even though user preferences indicate it should have stopped.Check if the generator 2-wire start/stop wiring to IQ System Controller is loose. Turn off the generator manually and contact installer or Enphase customer support.
GenTHDHighHigh Total Harmonic Distortion (THD) Measured THD is above 25%Generator power output is not stable and having high THD (THD means total harmonic distortion, which is a metric to measure the power quality. If the THD is high, the performance of your electronics will be affected; for example, you may see flickering lights).

Symptoms & remedies

SymptomCauseRemedy
ExplosionBattery short circuitsDisconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery.
Battery short circuitsDisconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery.
Gas fuel leaksCheck the LPG vapor or natural gas fuel system for leakage by using a soap and water solution with the fuel system test pressurized to 6--8 ounces per square inch (10--14 inches water column). Do not use a soap solution containing either ammonia or chlorine because both prevent bubble formation. A successful test depends on the ability of the solution to bubble.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

34
Part #DescriptionQtySystem
GM90232--CAir Intake Assy1Air filter PartsGeek
GM90232--FAir Intake Assy1Air filter PartsGeek
GM90232--GR1Air Intake Assy1Air filter PartsGeek
GM90232--GR2Air Intake Assy1Air filter PartsGeek
GM90280Air Cleaner Assy1Air filter PartsGeek
GM90281Element, Air Cleaner1Air filter PartsGeek kuduparts $43.00
GM91571Hose, Fuel Line1Hose PartsGeek
GM95583Hose, Air Intake1Hose PartsGeek
X-215-19Elbow, pipe (90 deg x 1/8”npt)1Hose PartsGeek
X-386-141Line, Flex2Hose PartsGeek
X-426-1Clamp, hose, 2.81/3.75 in.3Hose PartsGeek
X-426-2Clamp, hose, 2.31/3.25 in.2Hose PartsGeek
X-426-9Clamp, hose, .25/.70 in.2Hose PartsGeek
X-6380-11Hose, Charged Air Cooler1Hose PartsGeek
X-672-40Clamp, Insulated1Hose PartsGeek
24RCLKOHLER 24RCL generatorService part / kit PartsGeek
GM90230Figure 1-23 Coolant Fill (24RCL shown)1Service part / kit PartsGeek
GM90277Pipe, Exhaust1Service part / kit PartsGeek
GM96976Valve, Dual Solenoid1Service part / kit PartsGeek
M125A-06-80Washer, Plain6Service part / kit PartsGeek
M125A-08-80Washer, Plain 8.4 ID x 16.0 OD8Service part / kit PartsGeek
M125A-10-80Washer, Plain 10.5 ID x 20.0 OD14Service part / kit PartsGeek
M6921-06016-60Screw, Hex Flnge M6x16mm flly thrd js5003Service part / kit PartsGeek
M931-08040-60Screw, Hex Cap2Service part / kit PartsGeek
M933-06010-60Screw, Hex Cap2Service part / kit PartsGeek
M933-08012-60Screw, Hex Cap2Service part / kit PartsGeek
M933-08016-60Screw, Hex Cap3Service part / kit PartsGeek
M934-08-60Nut, Hex1Service part / kit PartsGeek
M982-06-80Nut, hex elastic stop, 6MM4Service part / kit PartsGeek
M982-08-80Nut, hex elastic stop, 8MM2Service part / kit PartsGeek
X-25-40Washer, Plain, .281 ID X .625 in. OD2Service part / kit PartsGeek
X-284-7Grommet, round1Service part / kit PartsGeek
X-6047-31Channel, U1Service part / kit PartsGeek
X-75-10Plug, pipe (3/8” nptf)2Service part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Standby7.932.09
Standby25%11.332.99
Standby50%15.864.19
Standby75%17.894.73
Standby100%24.076.36

Available documents

Brochure — GSA Product List (Kohler)Brochure — RES Consumer Referral Rebate (Kohler)Brochure — Referral Rebate Form EDITABLE (Kohler)Brochure — g6132 (Kohler)Spec sheet (Kohler)Spec sheet — g4228 (Kohler)Spec sheet — g4303 (Kohler)Installation manual — Controllers tt1589 (Kohler)Installation manual — adv8641 (Kohler)Installation manual — adv9758 (Kohler)Installation manual — tp6906 (Kohler)Installation manual — tp7007 (Kohler)Installation manual — tt1445 (Kohler)Installation manual — tt1589 (Kohler)Installation manual — tt1633 (Kohler)Installation manual — tt1691 (Kohler)Installation manual — tt1700 (Kohler)Installation manual — tt1742 (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Reference — Kohler 2017 Referral Rebate Consumer RESReference — Kohler 2019 RES Consumer Referral RebateReference — Puffton Mill Valley Case History (Kohler)Reference — ReferralRebateForm Editable1 (Kohler)Owner's manual — tp6905 (Kohler)Parts manual (Kohler)Service manual — 4f53249c-825d-4340-a887-aac9199ce897 (Kohler)Service manual — Choosing-a-Generator-Compatible-with-The-Enphase-Energy-Management-System (Kohler)Service manual — PDF-202312 US Kohler Tp7202 en-US1 (Kohler)Service manual — tp6907 (Kohler)