CUMMINS C20 N6, C25 N6, C36 N6, C40 N6H, C30 N6H Operator's Manual

...

OperatorOperator ManualManual

Generator Set

QSJ2.4 Engine with PowerCommand® 1.1 Control

C20 N6 (Spec A), C22 N6 (Spec A) C25 N6 (Spec A), C30 N6 (Spec A) C36 N6 (Spec A), C40 N6 (Spec A) C30 N6H (Spec A), C36 N6H (Spec A) C40 N6H (Spec A), C45 N6H (Spec A) C50 N6H (Spec A), C60 N6H (Spec A)

English Original Instructions

7-2018 A045R242 (Issue 12)

1. IMPORTANT SAFETY INSTRUCTIONS ....................................................................................... 1

1.1 Warning, Caution, and Note Styles Used in This Manual ..................................................... 1

1.2 General Information ................................................................................................................ 1

1.3 Generator Set Safety Code .................................................................................................... 4

1.4 Moving Parts Can Cause Severe Personal Injury or Death ................................................... 4

1.5 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death.................. 5

1.6 Fuel and Fumes Are Flammable ............................................................................................ 5

1.7 Batteries Can Explode ............................................................................................................ 6

1.8 Exhaust Gases Are Deadly..................................................................................................... 7

1.9 The Hazards of Carbon Monoxide.......................................................................................... 9

1.10 Earth Ground Connection ..................................................................................................... 9

2. INTRODUCTION.......................................................................................................................... 11

2.1 Safety .................................................................................................................................... 11

2.2 About This Manual................................................................................................................ 11

2.3 Schedule of Abbreviations .................................................................................................... 12

2.4 Related Literature ................................................................................................................. 14

2.5 Model Specifications ............................................................................................................. 15

2.6 After Sales Services.............................................................................................................. 20

3. CONTROL SYSTEM .................................................................................................................... 25

3.1 Control System Description .................................................................................................. 25

3.2 Display Text or Symbolic Version ......................................................................................... 29

3.3 Exercise Settings ................................................................................................................. 30

3.4 Time Setup (1-Phase ATS)................................................................................................... 34

3.5 Brightness and Contrast ....................................................................................................... 38

3.6 History and About Menu ....................................................................................................... 40

3.7 Fault Log ............................................................................................................................... 42

3.8 Operating Modes .................................................................................................................. 44

3.9 Selecting Operating Modes................................................................................................... 44

4. OPERATION ................................................................................................................................ 51

4.1 Safety Considerations........................................................................................................... 51

4.2 Introduction ........................................................................................................................... 52

4.3 Maintenance ......................................................................................................................... 52

4.4 Operating Recommendations ............................................................................................... 52

4.5 Generator Set Operation....................................................................................................... 54

5. MAINTENANCE ........................................................................................................................... 65

5.1 Maintenance Safety .............................................................................................................. 65

5.2 Periodic Maintenance ........................................................................................................... 68

5.3 Engine Oil ............................................................................................................................. 76

5.4 Air Intake System.................................................................................................................. 81

Table of Contents 7-2018

5.5 Generator Set Output - AC Electric System Checks ............................................................ 84

5.6 DC Electrical System ............................................................................................................ 85

5.7 Batteries ................................................................................................................................ 86

5.8 Spark Plugs .......................................................................................................................... 89

5.9 Cleaning the Generator Set Housing.................................................................................... 90

5.10 Complete System Test ...................................................................................................... 90

6. TROUBLESHOOTING ................................................................................................................. 91

6.1 Avoiding Generator Set Shutdowns ..................................................................................... 91

6.2 Control System ..................................................................................................................... 91

6.3 Fault Finding ......................................................................................................................... 91

6.4 Fault/Status Codes - PowerCommand 1.1 ........................................................................... 92

1 IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS. This manual contains important instructions that should be followed during installation and maintenance of the generator set and batteries.

Safe and efficient operation can be achieved only if the equipment is properly operated and maintained. Many accidents are caused by failure to follow fundamental rules and precautions.

1.1 Warning, Caution, and Note Styles Used in This Manual

The following safety styles and symbols found throughout this manual indicate potentially hazardous conditions to the operator, service personnel, or equipment.

DANGER

Indicates a hazardous situation that, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

Indicates information considered important, but not hazard-related (e.g., messages relating to property damage).

1.2 General Information

This manual should form part of the documentation package supplied by Cummins Inc. with specific generator sets. If this manual has been supplied in isolation, please contact your authorized dealer.

It is in the operator's interest to read and understand all warnings and cautions contained in the documentation relevant to the generator set operation and daily maintenance.

CAUTION

NOTICE

1. IMPORTANT SAFETY INSTRUCTIONS 7-2018

General Safety Precautions

WARNING

Hot Pressurized Liquid Contact with hot liquid can cause severe burns. Do not open the pressure cap while the engine is running. Let the engine

cool down before removing the cap. Turn the cap slowly and do not open it fully until the pressure has been relieved.

WARNING

Moving Parts Moving parts can cause severe personal injury. Use extreme caution around moving parts. All guards must be properly

fastened to prevent unintended contact.

WARNING

Toxic Hazard Used engine oils have been identified by some state and federal agencies to

cause cancer or reproductive toxicity. Do not ingest, breathe the fumes, or contact used oil when checking or

changing engine oil. Wear protective gloves and face guard.

WARNING

Electrical Generating Equipment Incorrect operation and maintenance can result in severe personal injury or

death. Do not operate equipment when fatigued, or after consuming any alcohol or

drug. Make sure that only suitably trained and experienced service personnel

perform electrical and/or mechanical service.

WARNING

Toxic Gases Substances in exhaust gases have been identified by some state and federal

agencies to cause cancer or reproductive toxicity. Do not breathe in or come into contact with exhaust gases.

WARNING

High Noise Level Generator sets in operation emit noise, which can cause hearing damage. Wear appropriate ear protection at all times.

1. IMPORTANT SAFETY INSTRUCTIONS7-2018

WARNING

Hot Surfaces Contact with hot surfaces can cause severe burns. The unit is to be installed so that the risk of hot surface contact by people is

minimized. Wear appropriate PPE when working on hot equipment and avoid contact with hot surfaces.

WARNING

Toxic Hazard Ethylene glycol, used as an engine coolant, is toxic to humans and animals. Wear appropriate PPE. Clean up coolant spills and dispose of used coolant

in accordance with local environmental regulations.

WARNING

Combustible Liquid Ignition of combustible liquids is a fire or explosion hazard which can cause

severe burns or death. Do not store fuel, cleaners, oil, etc., near the generator set. Do not use

combustible liquids like ether.

WARNING

Combustible Gases Generator sets in operation have combustible gases under pressure, which

if ignited can cause eye and ear damage. Wear appropriate eye and ear protection at all times.

WARNING

Combustible Gases Generator sets in operation have combustible gases under pressure, which

if ignited can cause severe injury. Do not operate the generator set with any doors open.

WARNING

Fire Hazard Materials drawn into the generator set, as well as accumulated grease and

oil, are a fire hazard. Fire can cause severe burns or death. Keep the generator set and the surrounding area clean and free from

obstructions. Make sure the generator set is mounted in a manner to prevent combustible materials from accumulating under the unit.

1. IMPORTANT SAFETY INSTRUCTIONS 7-2018

WARNING

Automated Machinery Accidental or remote starting of the generator set can cause severe personal

injury or death. Isolate all auxiliary supplies and use an insulated wrench to disconnect the

starting battery cables (negative [–] first).

NOTICE

Keep multi-type ABC fire extinguishers close by. Class A fires involve ordinary combustible materials such as wood and cloth. Class B fires involve combustible and flammable liquid fuels and gaseous fuels. Class C fires involve live electrical equipment. (Refer to NFPA No. 10 in the applicable region.)

NOTICE

Before performing maintenance and service procedures on enclosed generator sets, make sure the service access doors are secured open.

NOTICE

Stepping on the generator set can cause parts to bend or break, leading to electrical shorts, or to fuel leaks, coolant leaks, or exhaust leaks. Do not step on the generator set when entering or leaving the generator set room.

1.3 Generator Set Safety Code

Before operating the generator set, read the manuals and become familiar with them and the equipment. Safe and efficient operation can be achieved only if the equipment is properly operated and maintained. Many accidents are caused by failure to follow fundamental rules and precautions.

WARNING

Electrical Generating Equipment Incorrect operation and maintenance can result in severe personal injury or

death. Read and follow all Safety Precautions, Warnings, and Cautions throughout

this manual and the documentation supplied with the generator set.

1.4 Moving Parts Can Cause Severe Personal Injury or Death

• Keep hands, clothing, and jewelry away from moving parts.

1. IMPORTANT SAFETY INSTRUCTIONS7-2018

• Before starting work on the generator set, disconnect the battery charger from its AC source, then disconnect the starting batteries using an insulated wrench, negative (–) cable first. This will prevent accidental starting.

• Make sure that fasteners on the generator set are secure. Tighten supports and clamps; keep guards in position over fans, drive belts, etc.

• Do not wear loose clothing or jewelry in the vicinity of moving parts or while working on electrical equipment. Loose clothing and jewelry can become caught in moving parts.

• If any adjustments must be made while the unit is running, use extreme caution around hot manifolds, moving parts, etc.

1.5 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death

• Only qualified service personnel certified and authorized to work on power circuits should work on exposed energized power circuits.

• All relevant service material must be available for any electrical work performed by certified service personnel.

• Exposure to energized power circuits with potentials of 50 VAC or 75 VDC or higher poses a significant risk of electrical shock and electrical arc flash.

• Refer to standard NFPA 70E, or equivalent safety standards in corresponding regions, for details of the dangers involved and for safety requirements.

1.6 Fuel and Fumes Are Flammable

Fire, explosion, and personal injury or death can result from improper practices.

• Do not fill fuel tanks while the engine is running unless the tanks are outside the engine compartment. Fuel contact with hot engine or exhaust is a potential fire hazard.

• Do not permit any flame, cigarette, pilot light, spark, arcing equipment, or other ignition source near the generator set or fuel tank.

• Fuel lines must be adequately secured and free of leaks. Fuel connection at the engine should be made with an approved flexible line. Do not use copper piping on flexible lines as copper will become brittle if continuously vibrated or repeatedly bent.

• Make sure all fuel supplies have a positive shutoff valve.

• Make sure the battery area has been well-ventilated prior to servicing near it. Lead-acid batteries emit a highly explosive hydrogen gas that can be ignited by arcing, sparking, smoking, etc.

1. IMPORTANT SAFETY INSTRUCTIONS 7-2018

Do Not Operate in Flammable and Explosive Environments

Flammable vapor can cause an engine to over speed and become difficult to stop, resulting in possible fire, explosion, severe personal injury, and death. Do not operate a generator set where a flammable vapor environment can be created, unless the generator set is equipped with an automatic safety device to block the air intake and stop the engine. The owners and operators of the generator set are solely responsible for operating the generator set safely. Contact your authorized Cummins distributor for more information.

Spillage

Any spillage that occurs during fueling, oil top-off, or oil change must be cleaned up before starting the generator set.

Fluid Containment

NOTICE

Where spillage containment is not part of a Cummins supply, it is the responsibility of the installer to provide the necessary containment to prevent contamination of the environment, especially water courses and sources.

If fluid containment is incorporated into the bedframe, it must be inspected at regular intervals. Any liquid present should be drained out and disposed of in line with local health and safety regulations. Failure to perform this action may result in spillage of liquids which could contaminate the surrounding area.

Any other fluid containment area must also be checked and emptied, as described above.

1.7 Batteries Can Explode

Batteries can explode, causing severe skin and eye burns and can release toxic electrolytes.

Combustible Gases Batteries can explode, causing severe skin and eye burns, and can release

toxic electrolytes. Do not dispose of the battery in a fire, because it is capable of exploding. Do

not open or mutilate the battery. Do not charge frozen batteries.

WARNING

1. IMPORTANT SAFETY INSTRUCTIONS7-2018

WARNING

Electric Shock Hazard Batteries present the risk of high short circuit current. When servicing the generator set:

• Remove watches, rings, or other metal objects.

• Use tools with insulated handles.

NOTICE

Servicing of batteries must be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries.

• Wear safety glasses.

• Do not smoke.

• Do not charge frozen batteries.

• To prevent arcing when disconnecting the battery:

1. Press the Off switch from the display and then press the E-Stop button.

2. Disconnect AC power from any battery chargers.

3. Remove the negative (-) battery cables to prevent starting.

• To prevent arcing when reconnecting the battery:

1. Reconnect the positive (+) cables.

2. Reconnect the negative (-) cables.

3. Reconnect the battery charger to AC power supply.

• When replacing the generator set battery, always replace it with a battery as specified in this manual.

1.8 Exhaust Gases Are Deadly

• Provide an adequate exhaust system to properly expel discharged gases away from enclosed or sheltered areas, and areas where individuals are likely to congregate. Visually and audibly inspect the exhaust system daily for leaks per the maintenance schedule. Make sure that exhaust manifolds are secured and not warped. Do not use exhaust gases to heat a compartment.

• Make sure the unit is well ventilated.

1. IMPORTANT SAFETY INSTRUCTIONS 7-2018

Exhaust Precautions

WARNING

Hot Exhaust Gases Contact with hot exhaust gases can cause severe burns. Wear personal protective equipment when working on equipment.

WARNING

Hot Surfaces Contact with hot surfaces can cause severe burns. The unit is to be installed so that the risk of hot surface contact by people is

minimized. Wear appropriate PPE when working on hot equipment and avoid contact with hot surfaces.

WARNING

Toxic Gases Inhalation of exhaust gases can cause asphyxiation and death. Pipe exhaust gas outside and away from windows, doors, or other inlets to

buildings. Do not allow exhaust gas to accumulate in habitable areas.

WARNING

Fire Hazard Contaminated insulation is a fire hazard. Fire can cause severe burns or

death. Remove any contaminated insulation and dispose of it in accordance with

local regulations.

The exhaust outlet may be sited at the top or bottom of the generator set. Make sure that the exhaust outlet is not obstructed. Personnel using this equipment must be made aware of the exhaust position. Position the exhaust away from flammable materials - in the case of exhaust outlets at the bottom, make sure that vegetation is removed from the vicinity of the exhaust.

The exhaust pipes may have some insulating covers fitted. If these covers become contaminated they must be replaced before the generator set is run.

To minimize the risk of fire, make sure the following steps are observed:

• Make sure that the engine is allowed to cool thoroughly before performing maintenance or operation tasks.

• Clean the exhaust pipe thoroughly.

1. IMPORTANT SAFETY INSTRUCTIONS7-2018

1.9 The Hazards of Carbon Monoxide

Carbon monoxide (CO) is an odorless, colorless, tasteless and non-irritating gas. You cannot see it or smell it. Red blood cells, however, have a greater affinity for CO than for oxygen. Therefore, exposure even to low levels of CO for a prolonged period can lead to asphyxiation (lack of oxygen) resulting in death. Mild effects of CO poisoning include eye irritation, dizziness, headaches, fatigue and the inability to think clearly. More extreme symptoms include vomiting, seizures and collapse.

Engine-driven generator sets produce harmful levels of carbon monoxide that can injure or kill you.

Special Risks of CO near the Home

WARNING

Toxic Gases Carbon monoxide (CO) gas can cause nausea, fainting, or death. Residents

can be exposed to lethal levels of CO when the generator set is running. Depending on air temperature and wind, CO can accumulate in or near the home.

To protect yourself and others from the dangers of CO poisoning, it is recommended that reliable, approved, and operable CO detector alarms are installed in proper locations in the home as specified by their manufacturer.

Protecting Yourself from CO Poisoning

• Locate the generator set in an area where there are no windows, doors, or other access points into the home.

• Make sure all CO detectors are installed and working properly.

• Pay attention for signs of CO poisoning.

• Check the exhaust system for corrosion, obstruction, and leaks every time you start the generator set and every eight hours when you run it continuously.

1.10 Earth Ground Connection

The neutral of the generator set may be required to be bonded to earth ground at the generator set location, or at a remote location, depending on system design requirements. Consult the engineering drawings for the facility or a qualified electrical design engineer for proper installation.

NOTICE

The end user is responsible to make sure that the ground connection point surface area is clean and free of rust before making a connection.

1. IMPORTANT SAFETY INSTRUCTIONS 7-2018

NOTICE

The end user is responsible for making sure that an earthing arrangement that is compliant with local conditions is established and tested before the equipment is used.

2 Introduction

2.1 Safety

Hazardous Voltage Contact with high voltages can cause severe electrical shock, burns, or

death. Make sure that only a trained and experienced electrician makes generator

set electrical output connections, in accordance with the installation instructions and all applicable codes.

Electrical Generating Equipment Faulty electrical generating equipment can cause severe personal injury or

death. Generator sets must be installed, certified, and operated by trained and

experienced person in accordance with the installation instructions and all applicable codes.

WARNING

2.2 About This Manual

The purpose of this manual is to provide the users with sound, general information. It is for guidance and assistance with recommendations for correct and safe procedures. Cummins Inc. cannot accept any liability whatsoever for problems arising as a result of following recommendations in this manual.

The information contained within the manual is based on information available at the time of going to print. In line with Cummins Inc. policy of continuous development and improvement, information may change at any time without notice. The users should therefore make sure that they have the latest information available before starting any work. The latest version of this manual is available on QuickServe Online (https://quickserve.cummins.com).

Users are respectfully advised that, in the interests of good practice and safety, it is their responsibility to employ competent people to carry out any installation work. Consult your authorized dealer for further installation information. It is essential that the utmost care is taken with the application, installation, and operation of any generator set due to their potentially hazardous nature. Careful reference should also be made to other Cummins Inc. literature. You must operate and maintain your generator set properly if you are to expect safe and reliable operation.

For further assistance, contact your authorized Cummins Inc. dealer.

2. Introduction 7-2018

NOTICE

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

• This device may not cause harmful interferences.

• This device must accept any interference received, including interference that may cause undesired operation.

2.3 Schedule of Abbreviations

This list is not exhaustive. For example, it does not identify units of measure or acronyms that appear only in parameters, event/fault names, or part/accessory names.

Abbr. Description Abbr. Description

AC Alternating Current LED Light-Emitting Diode

AMP AMP, Inc. (part of Tyco

Electronics)

ANSI American National

Standards Institute

ASOV Automatic Shut Off Valve MPU Magnetic Pickup

ASTM American Society for

Testing and Materials (ASTM International)

ATS Automatic Transfer

Switch

AVR Automatic Voltage

Regulator

AWG American Wire Gauge NO Normally Open

CAN Controlled Area Network NWF Network Failure

CB Circuit Breaker OEM Original Equipment

CE Conformité Européenne OOR Out Of Range

MFM Multifunction Monitor

Mil Std Military Standard

NC Normally Closed

NC Not Connected

NFPA National Fire Protection

Agency

Manufacturer

CCA Cold Cranking Ampere OORH/

ORH

CFM Cubic Feet per Minute OORL/ORL Out Of Range Low

CGT Cummins Generator

Technologies

CMM Cubic Meters per Minute PCC PowerCommand®Control

PB Push Button

Out Of Range High

2. Introduction7-2018

Abbr. Description Abbr. Description

CT Current Transformer PGI Power Generation

Interface

DC Direct Current PGN Parameter Group

Number

DEF Diesel Exhaust Fluid PI Proportional/Integral

DPF Diesel Particulate Filter PID Proportional/Integral/

Derivative

EBS Excitation Boost System PLC Programmable Logic

Controller

ECM Engine Control Module PMG Permanent Magnet

Generator

ECS Engine Control System PPE Personal Protective

Equipment

EMI Electromagnetic

PT Potential Transformer

Interference

EN European Standard PTC Power Transfer Control

EPS Engine Protection

PWM Pulse-Width Modulation

System

E-Stop Emergency Stop RFI Radio Frequency

Interference

FAE Full Authority Electronic RH Relative Humidity

FMI Failure Mode Identifier RMS Remote Monitoring

System

FSO Fuel Shutoff RMS Root Mean Square

Genset Generator Set RTU Remote Terminal Unit

GCP Generator Control Panel SAE Society of Automotive

Engineers

GND Ground scfh Standard Cubic Feet of

gas per Hour

HMI Human-Machine

Interface

SCR Selective Catalytic

Reduction

IC Integrated Circuit SPN Suspect Parameter

Number

ISO International Organization

SW_B+ Switched B+

for Standardization

LBNG Lean-Burn Natural Gas UL Underwriters

Laboratories

2. Introduction 7-2018

Abbr. Description Abbr. Description

LCD Liquid Crystal Display UPS Uninterruptible Power

Supply

LCT Low Coolant

Temperature

2.4 Related Literature

The literature provided with the generator set is as follows:

• Installation Manual (A045R241)

• Operator Manual (A045R242)

CAUTION

A generator set must be operated and maintained properly if you are to expect safe and reliable operation. The Operator Manual includes a maintenance schedule and a troubleshooting guide.

The Health and Safety Manual must be read in conjunction with this manual for the safe operation of the generator set:

• Health and Safety Manual (0908-0110)

• Warranty Statement (A040H442)

• Emissions Component Defect Warranty Statement (A028X278)

The relevant manuals appropriate to your generator set are also available. The documents below are in English:

• Service Manual (A045R243)

• Parts Manual (A046Z094)

• EControls, Inc. Service Manual (A035C596)

• Global Control Platform (GCP) Engine Display Interface Software (EDIS) Training Manual (A035C608)

• RA Series Transfer Switch Owner Manual (A046S594) (if applicable)

• PowerCommand® 1302 Controller Owner's Manual (900-0661)

• Standard Repair Times (SRT) Manual (A046Z674)

• Application Manual T-030 - for application information (A040S369)

• Service Tool Manual (A043D529)

2. Introduction7-2018

2.5 Model Specifications

TABLE 1. 2.4L MODEL VARIATIONS

Models Description

C20 N6, C22 N6, C25 N6, C30 N6, C36 N6, C40 N6 60 Hz, 1800 RPM

C30 N6H, C36 N6H, C40 N6H, C45 N6H, C50 N6H, C60 N6H 60 Hz, 3600 RPM

TABLE 2. COLD WEATHER SPECIFICATIONS (ALL MODELS)

Temperature Description Battery Type Group

Above 4 °C (40 °F) No starting aids required. Standard 26

Additional coolant heater and

-17 to 4 °C (0 to 40 °F)

Below -17 °C (0 °F)

battery charger recommended for starting. Factory options available.

All starting aides (battery heater, coolant heater, battery charger) recommended. Factory options available.

Standard 26

Larger 34

NOTICE

For NFPA 110 applications, a coolant heater is required. A factory option is available.

TABLE 3. FUEL SPECIFICATIONS 60 HZ, 1800 RPM

C20 N6 C22 N6 C25 N6 C30 N6 C36 N6 C40 N6

Full Load (Propane)

Full Load (Natural Gas)

Fuel Pressure 6-13 inches of water column (1.5 - 3.2 kPa) under any condition

105.1 scfh 265,000

BTU/hr

259.6 scfh 270,000

BTU/hr

112.7 scfh 285,000

BTU/hr

278.8 scfh 290,000

BTU/hr

125.4 scfh 315,000

BTU/hr

309.5 scfh 320,000

BTU/hr

164.1 scfh 410,000

BTU/hr

380.9 scfh 395,000

BTU/hr

182.7 scfh 460,000

BTU/hr

472.3 scfh 490,000

BTU/hr

193.6 scfh 490,000

BTU/hr

519 scfh

540,000

BTU/hr

2. Introduction 7-2018

TABLE 4. FUEL SPECIFICATIONS 60 HZ, 3600 RPM

C30 N6H C36 N6H C40 N6H C45 N6H C50 N6H C60 N6H

Full Load (Propane)

Full load (Natural Gas)

195.5 scfh 490,000

BTU/hr

476.1 scfh 495,000

BTU/hr

219.6 scfh 550,000

BTU/hr

533.3 scfh 555,000

BTU/hr

236.2 scfh 595,000

BTU/hr

573.2 scfh 595,000

BTU/hr

256.9 scfh 645,000

BTU/hr

623.0 scfh 645,000

BTU/hr

289.5 scfh 725,000

BTU/hr

704.7 scfh 730,000

BTU/hr

324.6 scfh 820,000

BTU/hr

814.2 scfh 840,000

BTU/hr

Fuel Pressure 6-13 inches of water column (1.5 - 3.2 kPa) under any condition

TABLE 5. ENGINE SPECIFICATIONS (ALL MODELS)

Specification Value

Engine 4 cylinder-in-line, SOHC, liquid-cooled, 4-stroke, spark ignited

Displacement 2351 cc (144 in3)

Spark Plug Gap

1.0 mm (0.040 in) (NA)

0.76 mm (0.030 in) (T/TAA)

Spark Plug Torque 20 Nm (15 ft-lb)

Coolant 50/50 coolant solution (50% pure water and 50% ethylene glycol)

High Crankcase Pressure No higher than 1.5 kPa

Compression

135 psi (dry test) or higher with less than 15 psi range between cylinders

Oil Capacity 4.3 L (4.54 quarts)

Oil Recommendation 5W30 API SM or newer

TABLE 6. GENERATOR SET SIZE SPECIFICATIONS WITH SOUND LEVEL 1

ENCLOSURE (L X W X H)

kW RPM mm in

20-25 1800

1830 x 864 x 1152 72 x 34 x 45.2

30 3600

30-40 1800

2384 x 864 x 1152 94 x 34 x 45.2

36-60 3600

2. Introduction7-2018

TABLE 7. GENERATOR SET WEIGHT 60 HZ, 1800 RPM

Sound Level 1 (Wet) C20 N6 C22 N6 C25 N6 C30 N6 C36 N6 C40 N6

kg 503 503 520 580 615 646

lb 1109 1109 1147 1279 1356 1424

TABLE 8. GENERATOR SET WEIGHT 60 HZ, 3600 RPM

Sound Level 1 (Wet) C30 N6H C36 N6H C40 N6H C45 N6H C50 N6H C60 N6H

kg 514 567 635 635 635 648

lb 1134 1249 1399 1399 1399 1429

TABLE 9. ALTERNATOR SPECIFICATIONS 60 HZ, 1800 RPM

C20 N6 C22 N6 C25 N6 C30 N6 C36 N6 C40 N6

Alternator Brushless, 4-pole rotating field, single bearing

Power (kVa):

1-Phase 20 22 25 30 36 40

3-Phase 25 27.5 31.3 37.5 45 50

Rated Voltages (V):

1-Phase 120/240

120/240

3-Phase

120/208 277/480 347/600

TABLE 10. ALTERNATOR SPECIFICATIONS 60 HZ, 3600 RPM

C30 N6H C36 N6H C40 N6H C45 N6H C50 N6H C60 N6H

Alternator Brushless, 2-pole rotating field, single bearing

Power (kVa):

1-Phase 30 36 40 45 50 60

3-Phase 37.5 45 50 56.3 62.5 75

Rated Voltages (V):

1-Phase 120/240

2. Introduction 7-2018

C30 N6H C36 N6H C40 N6H C45 N6H C50 N6H C60 N6H

120/240

3-Phase

120/208 277/480

NOTICE

Maximum I2= 8%.

TABLE 11. GENERATOR SET DERATING GUIDELINES

Engine Power Available Up To... Derate At…

2. Introduction7-2018

Model Fuel Elevation

Ambient

Temperature

C20 N6 NG, LP 1005 m (3300 ft) 40 °C (104 °F)

C22 N6 NG 670.5 m (2200 ft) 40 °C (104 ° F)

C22 N6 LP 1005 m (3300 ft) 40 °C (104 °F)

C25 N6 NG 0 m (0 ft) 25 °C (77 °F)

C25 N6 LP 114 m (375 ft) 25 °C (77 °F)

C30 N6 NG 762 m (2500 ft) 40 °C (104 ° F)

C30 N6 LP 1005 m (3300 ft) 40 °C (104 °F)

C36 N6 NG, LP 1005 m (3300 ft) 40 °C (104 °F)

C40 N6 NG, LP 114 m (375 ft) 40 °C (104 °F)

C30 N6H NG, LP 945 m (3100 ft) 40 °C (104 °F)

C36 N6H NG, LP 1005 m (3300 ft) 40 °C (104 °F)

Elevation Temperature

2% per 10 °C

(18 °F)

above 40 °C

(104 °F)

2% per 10 °C

(18 °F)

above 25 °C

(77 °F)

4% per

305 m

(1000 ft)

2% per 10 °C

(18 °F)

above 40 °C

(104 °F)

C40 N6H NG, LP 1005 m (3300 ft) 40 °C (104 °F)

C45 N6H LP 1005 m (3300 ft) 40 °C (104 °F)

C45 N6H NG, LP 914 m (3000 ft) 40 °C (104 °F)

C50 N6H NG, LP 114 m (375 ft) 25 °C (77 °F)

C60 N6H NG, LP 114 m (375 ft) 40 °C (104 °F)

TABLE 12. CONTROL SPECIFICATION (ALL MODELS)

Specification

Integrated microprocessor based engine, generator, transfer switch control

2% per 10 °C

(18 °F)

above 25 °C

(77 °F)

2% per 10 °C

(18 °F)

above 40 °C

(104 °F)

2. Introduction 7-2018

TABLE 13. DC SYSTEM SPECIFICATIONS (ALL MODELS)

Specification Value

Nominal Battery Voltage 12 VDC

Battery Group

Battery Type Maintenance free

Minimum Cold Crank Amps

26 standard, 34 high capacity (a high capacity battery requires an accessory battery tray)

545 standard, 850 high capacity (a high capacity battery requires an accessory battery tray)

2.6 After Sales Services

Cummins offers a full range of maintenance and warranty services.

Maintenance

Electrical Generating Equipment Incorrect service or parts replacement can result in severe personal injury,

death, and/or equipment damage. Make sure service personnel are qualified to perform electrical and

mechanical service.

WARNING

For expert generator set service at regular intervals, contact your Cummins Inc. service provider. See power.cummins.com/sales-service-locator for service locations that service this application. Maintenance tasks should only be undertaken by trained and experienced technicians provided by your Cummins Inc. service provider.

Warranty

For details of the warranty coverage for your generator set, refer to the Warranty Statement listed in the Related Literature section.

Extended warranty coverage is also available. In the event of a breakdown, prompt assistance can normally be given by factory trained service technicians with facilities to undertake all minor and many major repairs to equipment on site.

For further warranty details, contact your authorized dealer.

NOTICE

Damage caused by failure to follow the manufacturer's recommendations will not be covered by the warranty. Please contact your authorized dealer.

2. Introduction7-2018

Warranty Limitations

For details of the warranty limitations for your generator set, refer to the warranty statement applicable to the generator set.

How to Obtain Service

For parts, service, and product information, contact the nearest authorized Cummins Inc. dealer. To easily locate the nearest certified distributor/dealer for Cummins generator sets in your area, or for more information, contact us at 1-800CUMMINSTM(1-800-286-6467) or visit www.cummins.com/support.

Generator Set Nameplate

WARNING

Electrical Generating Equipment Improper service or replacement of parts can lead to severe personal

injury or death and to damage to equipment and property. Make sure service personnel are qualified to perform electrical and

mechanical service.

Model

Spec

Serial Number

NOTICE

Unauthorized modifications or replacement of fuel, exhaust, air intake or speed control system components that affect engine emissions are prohibited by law in the State of California.

Model, Spec, and Serial Numbers: Be ready to provide the model, spec, and

serial numbers on the generator set nameplate when contacting Cummins Inc. for information, parts, and service. The nameplate is located on the inside of the customer access door on enclosed generator sets.

Record these numbers so that they are easy to find when needed. Each character in these numbers is significant for obtaining the right parts listed in the Parts Catalog. Genuine Cummins Inc. replacement parts are recommended for best results.

My Generator Set Information

2. Introduction 7-2018

Manufacturing Facilities

Facility Address Phone Numbers

U.S. and CANADA

Cummins Inc. 1400 73rd Ave. NE Minneapolis, MN 55432 USA

Toll Free 1-800-CUMMINS (1-800-286-6467) Phone +1 763-574-5000 Fax +1 763-574-5298

EMEA, CIS Cummins Inc.

Columbus Avenue Manston Park Manston, Ramsgate Kent CT12 5BF United Kingdom

----------Cummins Inc. Royal Oak Way South Daventry Northamptonshire NN11 8NU United Kingdom

ASIA PACIFIC

Cummins Inc. 10 Toh Guan Road #07-01 TT International Tradepark Singapore 608838

BRAZIL Rua Jati, 310, Cumbica

Guarulhos, SP 07180-900 Brazil

Phone +44 1843 255000 Fax +44 1843 255902

Phone +65 6417 2388 Fax +65 6417 2399

Phone +55 11 2186 4195 Fax +55 11 2186 4729

CHINA Cummins Inc.

2 Rongchang East Street, Beijing Economic – Technological Development Area Beijing 100176, P.R. China

INDIA Cummins Inc.

Plot No B-2, SEZ Industrial Area, Village-Nandal & Surwadi, Taluka- Phaltan Dist- Satara, Maharashtra 415523 India

LATIN AMERICA

3350 Southwest 148th Ave. Suite 205 Miramar, FL 33027 USA

Phone 86 10 59023001 Fax +86 10 5902 3199

Phone +91 021 66305514

Phone +1 954 431 551 Fax +1 954 433 5797

Facility Address Phone Numbers

MEXICO Eje 122 No. 200 Zona Industrial

San Luis Potosi, S.L.P. 78395

Phone +52 444 870 6700 Fax +52 444 824 0082

Mexico

2. Introduction7-2018

2. Introduction 7-2018

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3 Control System

3.1 Control System Description

The control system is used to start and stop the generator set, and provides full generator set monitoring capability and protection in a stand-alone situation (nonparalleling) from the display screen. It monitors the engine for temperature, as well as oil pressure and speed. It also provides voltage and current metering. In the event of a fault, the unit indicates the fault type and, on critical faults, automatically shuts down the generator set.

All indicators, control buttons, and the display screen are on the face of the operator panel, as illustrated in the figure below.

There are three fault level signals generated by the control system:

• Event: Signals that a temporary condition exists.

• Warning: Signals an imminent or non-critical fault for the engine. The control

provides an indication only for this condition.

• Shutdown: Signals a potentially critical fault for the engine. The control

immediately takes the engine off-load and automatically shuts it down.

The standard control system operates on 12 VDC (or 24 VDC if applicable) battery power. History data is stored in non-volatile memory and is not deleted if battery power is lost.

Standard Operator Panel

The operator panel includes indicator lights (LEDs), display buttons used to navigate through the menus, control mode buttons, and an LCD display. The display enables the operator to check the status, adjust the settings, and start and stop the generator set. The standard operator panel (show below) is located on every generator set. An optional remote display operator panel accessory is also available.

3. Control System 7-2018

FIGURE 1. STANDARD OPERATOR PANEL (HMI211)

Standard Key Functions (HMI211)

The user interface includes two fixed action buttons and four soft key buttons. The action of the soft key buttons changes to meet the requirements of each screen.

TABLE 14. KEY FUNCTIONS

Key/Symbol Action

Switches to Off mode (fixed action button).

Switches to Auto mode.

Switches to Manual Run mode.

Navigates to the previous menu level (fixed action button).

(Up Arrow) Navigates to the previous screen/menu in a list.

(Down Arrow) Navigates to the next screen/menu in a list.

and Hold the up and down arrows simultaneously for two seconds from any

Info Menu to navigate to the Menu screen.

Save Saves changes and navigates to the associated screen.

Adjust Navigates to the Adjust Menu of a specific menu.

(Right Arrow) Advances the highlighted field to the next editable field.

+ 74 hidden pages

CUMMINS C20 N6, C25 N6, C36 N6, C40 N6H, C30 N6H Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1 IMPORTANT SAFETY INSTRUCTIONS

1.1 Warning, Caution, and Note Styles Used in This Manual

1.2 General Information

1.3 Generator Set Safety Code

1.4 Moving Parts Can Cause Severe Personal Injury or Death

1.5 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death

1.6 Fuel and Fumes Are Flammable

1.7 Batteries Can Explode

1.8 Exhaust Gases Are Deadly

1.9 The Hazards of Carbon Monoxide

1.10 Earth Ground Connection

2 Introduction

2.1 Safety

2.2 About This Manual

2.3 Schedule of Abbreviations

2.4 Related Literature

2.5 Model Specifications

2.6 After Sales Services

3 Control System

3.1 Control System Description