Carrier UG 15 Tier 4 Operation manual

Container Refrigeration
OPERATIONS AND SERVICE
MANUAL
For
Engine Emission System (EES)
UG15 Tier 4 Generator Sets
T-378

OPERATIONS AND SERVICE
MANUAL
For
Engine Emission System (EES)
UG15 Tier 4 Generator Sets
© Carrier Corporation, 2021 Printed in U. S. A. September 2021

i T-378
TABLE OF CONTENTS
Paragraph Number Page
SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
1.1 GENERAL SAFETY NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
1.2 SPECIFIC WARNING AND CAUTION STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
1.3 ASH HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.4 IMPORTANT INFORMATION: YOUR RIGHTS AND RESPONSIBILITIES . . . . . . . . . . . . . . . . . 1–2
1.4.1 Your Right to Maintenance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.4.2 Importance of Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.4.3 Importance of Properly Maintaining a Diesel Emission Control Strategy . . . . . . . . . . . . . . . 1–2
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.3 IMPORTANCE OF ENGINE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.4 IMPORTANCE OF DIESEL EMISSION CONTROL STRATEGY . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.5 FUEL AND OIL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.5.1 Fuel Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.5.2 Engine Oil Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.1 ENGINE EMISSION SYSTEM (EES) OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 EXHAUST SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.2.1 Diesel Oxidation Catalyst (DOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.2.2 Diesel Particulate Filter (DPF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.3 FUEL INJECTOR (DOSER) DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.3.1 Fuel Injector (Doser) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.3.2 EES Fuel Pump and Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.4 AIR CONTROL VALVE (ACV) DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
3.5 EMISSIONS CONTROL MODULE (ECM) DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
3.6 SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
3.6.1 Exhaust Inlet Temperature Sensor (ESEIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
3.6.2 Filter Inlet Temperature Sensor (ESFIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
3.6.3 Filter Outlet Temperature Sensor (ESFOT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
3.6.4 Back Pressure Sensor (ESFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
3.7 REGENERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
3.8 SYSTEM SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
ECM SERVICE TOOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
4.1 OVERVIEW AND INITIAL SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 COMPONENT CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.2.1 Air Control Valve (ACV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.2.2 Injector (Doser) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
4.2.3 Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
4.3 INITIATING A MANUAL REGENERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4
4.4 ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
4.5 SENSOR READINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7
4.6 RETRIEVING DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8
4.7 PROGRAMMING THE ECM WITH NEW SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–9

T-378 ii
ALARMS AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
5.1 ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
5.2 OTHER POTENTIAL FAILURE MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3
5.3 TROUBLESHOOTING WITH THE EES SERVICE TOOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–4
5.4 OPERATION WITH 250 HOUR SERVICE MODE ALARM ACTIVE . . . . . . . . . . . . . . . . . . . . . . 5–4
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.1 ENGINE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.2 EES MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.3 SERVICE & DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.4 DPF MANUAL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
6.5 CARB REGISTRATION AND SYSTEM LABELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1
PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1
EU DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–1
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX–1

iii T-378
LIST OF ILLUSTRATIONS
FIGURE NUMBER Page
Figure 3.1 Engine Emission System (EES) Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Figure 3.2 Diesel Oxidation Catalyst (DOC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Figure 3.3 Diesel Particulate Filter (DPF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Figure 3.4 Doser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Figure 3.5 EES Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Figure 3.6 Air Control Valve (ACV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Figure 3.7 Emissions Control Module (ECM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Figure 3.8 Service Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Figure 3.9 ESEIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Figure 3.10 ESFIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Figure 3.11 ESFOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Figure 3.12 Back Pressure Sensor (ESFP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Figure 4.1 ECM Service Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Figure 4.2 ECM CAN Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Figure 4.3 ECM Service Tool - Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Figure 4.4 ECM Service Tool - Component Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
Figure 4.5 ECM Service Tool - Manual Regeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4
Figure 4.6 ECM Service Tool - Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
Figure 4.7 ECM Service Tool - Alarms Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6
Figure 4.8 ECM Service Tool - Alarms Corrected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6
Figure 4.9 ECM Service Tool - Alarms Cleared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7
Figure 4.10 ECM Service Tool - Sensor Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7
Figure 4.11 ECM Service Tool - Retrieving Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8
Figure 4.12 ECM Service Tool - Software Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–9
Figure 6.1 Service Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Figure 6.2 CARB Labels for DOC and DPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
Figure 6.3 CARB Label Placement Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
Figure 7.1 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1

T-378 iv
LIST OF TABLES
TABLE NUMBER Page
Table 3–1 System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
Table 6–1 EES Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Table 8–1 Retrofit Kit #74-00324-00 for EES Field Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1
Table 8–2 Exhaust Kit #76-00955-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1
Table 8–3 Air Control Valve (ACV) Kit #76-00956-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–2
Table 8–4 Coolant Kit #76-00957-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–2
Table 8–5 Voltage Kit #76-00958-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–3
Table 8–6 Fuel System Kit #76-00959-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–3
Table 8–7 Control Box Kit #76-00960-00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–4

1–1 T-378
SECTION 1
SAFETY SUMMARY
1.1 General Safety Notices
.This Carrier Transicold EES has been designed with the safety of the operator in mind. During normal operation,
all moving parts are fully enclosed to help prevent injury. During all pre-trip inspections, daily inspections, and
problem troubleshooting, you may be exposed to moving parts. Please stay clear of all moving parts when the unit
is in operation and when the START/RUN/OFF switch (SROS) is not in the OFF position.
Read these instructions carefully before operating the system. Safety alerts labeled DANGER, WARNING and
CAUTION alert you to special instructions or precautions concerning procedures that would be hazardous if
performed incorrectly or carelessly.
The safety alerts alone cannot eliminate all hazards. Strict compliance with these special instructions and common
sense are major accident prevention measures.
1.2 Specific Warning And Caution Statements
To help identify the label hazards on the unit and explain the level of awareness each one carries, an explanation is
given with the appropriate consequences:
DANGER
!
DANGER - means an immediate hazard that WILL result in severe personal injury or death.
WARNING
!
WARNING - means to warn against a hazard or unsafe condition that COULD result in severe
personal injury or death.
CAUTION
!
CAUTION - means to warn against a potential hazard or unsafe practice that could result in
minor personal injury, product or property damage.
NOTICE
NOTICE - means to warn against potential product or property damage.
The following statements are applicable to the refrigeration unit and appear elsewhere in this manual. These
recommended precautions must be understood and applied during operation and maintenance of the equipment
covered herein.
WARNING
!
Safety Considerations: Improper installation and improper servicing of this Engine Emission
System (EES) can be hazardous. Only trained and qualified service personnel should install,
repair or service this equipment. When working on this equipment, observe precautions in all
literature including this manual, the equipment tags and labels attached to the unit, and other
safety precautions that may apply. Follow safe work practices and utilize the appropriate
protective equipment at all times.

T-378 1–2
WARNING
!
Hot Exhaust (Pipe and Gas): During filter regeneration exhaust gas coming out of the tailpipe
can exceed 700°F (370°C) and should not be directed onto materials that can melt or burn. The
tailpipe, where it exits the DPF, can reach 1100°F (600°C). Follow installation instructions and
the operator manual to prevent any component damage or personal injury.
WARNING
!
Just as with a standard muffler, the Diesel Particulate Filter (DPF) enclosure can reach 400°F
(200°C) during filter regeneration and can cause burns if touched.
NOTICE
Under no circumstances should a technician electrically probe the modules at any point, other
than the connector terminals where the harness attaches. Module components operate at
different voltage levels and at extremely low current levels. Improper use of voltmeters, jumper
wires, continuity testers, etc. could permanently damage the module.
1.3 Ash Handling
Ash is considered a hazardous material and must be collected using either a commercially available cleaning
system or a vacuum with a HEPA filter. Follow the ash handling guidelines as prescribed by California Air
Resources Board (CARB) at:
www.arb.ca.gov/diesel/tru/documents/ashguide.pdf.
1.4 Important Information: Your Rights and Responsibilities
Only factory authorized service locations should attempt to install and maintain the Engine Emission System
(EES). All required procedures must be adhered to and all documentation must be properly filed. Proper operation
must be confirmed at the time of installation.
1.4.1 Your Right to Maintenance Information
The California Air Resources Board (CARB) requires that Carrier Transicold provide detailed maintenance
information for the diesel emission control system upon delivery to the end-user pursuant to section 2706(h)(2),
Title 13, California Code of Regulations, at no additional cost to the owner. If you do not already have this
information, contact either your local Carrier Transicold dealer or Carrier Transicold at 1-800-448-1661 for
assistance.
1.4.2 Importance of Engine Maintenance
Proper engine maintenance is critical for the proper functioning of your diesel emission control strategy. Failure to
document proper engine maintenance, including oil consumption records, may be grounds for denial of a warranty
claim for a failed component of a diesel emission control strategy.
1.4.3 Importance of Properly Maintaining a Diesel Emission Control Strategy
Proper maintenance is critical for the diesel emission control strategy to function as intended. Failure to document
proper diesel emission control strategy maintenance, including cleaning and/or ash removal of the system,
replacement of consumables, and replacement of broken/failed parts, may be grounds for denial of a warranty
claim for a failed component of a diesel emission control strategy.

2–1 T-378
SECTION 2
INTRODUCTION
2.1 Introduction
This guide has been prepared for the operator of a Carrier Transicold Trailer or Rail refrigeration unit with Engine
Emission System (EES) installed. It contains basic information for the operation of the EES as well as safety
information and troubleshooting tips. Please take the time to read the information contained in this booklet and
refer to it whenever you have a question about the operation of the EES.
The EES has been engineered to provide long, trouble-free performance when it is properly operated and
maintained. The information outlined in this guide will help to minimize over-the-road problems. In addition, a
comprehensive maintenance program will help to ensure that the system continues to operate reliably. Such a
maintenance program will also help to control operating costs, increase the working life of the system, and improve
performance.
When a UG15 Tier 4 generator set unit is factory installed with the EES option, the unit PID number is UG21XX.
When a UG15 Tier 4 generator set unit has an EES field installed, the unit PID number will change from UG20XX
to UG21XX (i.e. UG2033 will change to UG2133).
2.2 Installation
Only factory authorized service locations should attempt to install and maintain the Engine Emission System
(EES). All required procedures must be adhered to and all documentation must be properly filed. Proper operation
must be confirmed at the time of installation.
2.3 Importance of Engine Maintenance
Proper engine maintenance is critical for the proper functioning of your diesel emission control strategy. Failure to
document proper engine maintenance, including oil consumption records, may be grounds for denial of a warranty
claim for a failed component of a diesel emission control strategy.
2.4 Importance of Diesel Emission Control Strategy
Proper maintenance is critical for the diesel emission control strategy to function as intended. Failure to document
proper diesel emission control strategy maintenance, including cleaning and/or ash removal of the system,
replacement of consumables, and replacement of broken / failed parts, may be grounds for denial of a warranty
claim for a failed component of a diesel emission control strategy
2.5 Fuel and Oil Requirements
2.5.1 Fuel Requirements
ONLY use Ultra Low Sulfur Diesel (ULSD) fuel for a unit equipped with an EES.
Diesel fuel with higher sulfur contents may foul the diesel oxidation catalyst (DOC) and prevent the filter from
performing a proper regeneration.
Bio diesel up to a 5% blend can be utilized as long as the sulfur level meets the same criteria as ULSD (< 15 ppm).
Some bio fuels may contribute to increased ash accumulation. While increased ash accumulation will not have any
adverse effects on the filter efficiency, the filter may require more frequent cleaning.
2.5.2 Engine Oil Requirements
ONLY use API engine oil of CJ-4 (low ash) or better classification with a unit equipped with an EES. Mobile Delvac
1 with CK-4 specifications meets oil requirements.
Use of non-compliant oils will cause increased ash loading and reduce the effectiveness of the EES. See unit's
Operator’s manual for proper weight of oil.
High ash oil may have the following effects:
• Increases frequency of regenerations.
• Increases back pressure in DPF
• Can lead to higher fuel consumption.

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SECTION 3
DESCRIPTION
3.1 Engine Emission System (EES) Overview
In a diesel engine exhaust system, unburned diesel fuel results in soot accumulation. This can cause clogging in
the filter which in turn causes engine exhaust back pressure to become too high. The Engine Emission System
(EES), is an optional system that removes most of the soot particles from the exhaust. By removing the soot
particles, cleaner air is discharged out of the exhaust system during operation and back pressure is reduced. The
EES also functions as the muffler when installed and reduces the exhaust related noise emitted from the unit.
The process of burning off the particulate matter in the EES is called Regeneration. This is where temperature is
increased to a level that oxidizes the captured soot, leaving only (fine) inorganic ash and significantly reducing
back pressure. Refer to Section 3.7 for a further explanation of Regeneration.
The major components of the ESS are the Exhaust System, Fuel Injector (Doser), Emissions Control Module
(ECM), and Air Control Valve (ACV). Refer to Figure 3.1 for component locations.
Figure 3.1 Engine Emission System (EES) Components
1) Exhaust System
2) Fuel Injector (Doser)
3) Emissions Control Module (ECM)
4) Air Control Valve (ACV)
- - - - -
2
4
13

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3.2 Exhaust System Description
3.2.1 Diesel Oxidation Catalyst (DOC)
Exhaust flows through the Diesel Oxidation Catalyst (DOC), Figure 3.2, for initial filtration. Fuel is injected into the
DOC to increase temperatures in the Diesel Particulate Filter (DPF) during regeneration. Refer to Section 3.7 for a
description of how regeneration works. There are no service requirements for the DOC.
Figure 3.2 Diesel Oxidation Catalyst (DOC)
3.2.2 Diesel Particulate Filter (DPF)
The Diesel Particulate Filter (DPF), Figure 3.3, traps particulate matter in a filter but allows exhaust gas to pass
through. The DPF uses a Wall Flow Filter (WFF) design, which allows exhaust gases to pass through micro-porous
walls. Particles of diesel soot and other debris is removed from the gas stream by filtration, but soot remains
trapped in the DPF. As the amount of soot increases in the DPF, the back pressure in the exhaust increases as
well. When the back pressure reaches a predetermined level, regeneration will occur to convert the captured soot
into inorganic ash. Refer to Section 3.7 for a description of how regeneration works. The DPF requires periodic
ash removal and filter cleaning. Refer to Section 6.4 for DPF Cleaning procedure.
Figure 3.3 Diesel Particulate Filter (DPF)
Wall Flow Filter (WFF)

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3.3 Fuel Injector (Doser) Description
3.3.1 Fuel Injector (Doser)
The Fuel Injector (Doser), Figure 3.4, sprays a small amount of fuel into the exhaust. The Doser helps raise
exhaust temperatures during active regeneration when the engine is too lightly loaded for passive regeneration to
occur. During active regeneration, the Doser valve injects a fine mist of fuel into the exhaust stream, where it then
ignites on the surface of the DOC to raise the exhaust temperature and oxidize the particulate matter in the DPF.
Automatic regeneration is initiated by the Emissions Control Module (ECM). Refer to Section 3.7 for a description
of how regeneration works.
Coolant from the generator set radiator is supplied to the Doser to remove heat.
Figure 3.4 Doser
3.3.2 EES Fuel Pump and Filter
The EES Fuel Pump, Figure 3.5, taps into the generator set fuel tank supply in to pump fuel directly to the Doser
during DPF regeneration. An in-line fuel filter / water separator is located between the pump and Doser.
Figure 3.5 EES Fuel Pump

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3.4 Air Control Valve (ACV) Description
The Air Control Valve (ACV), Figure 3.6, restricts engine intake air to raise exhaust temperatures. It is a normally-
open valve that is located on the engine air intake hose. When the DPF requires regeneration and exhaust
temperature is very low (for example, during minimal engine loading and/or extremely cold weather), the ACV is
used for active-assist regeneration. During active-assist regeneration, the ACV changes the air-to-fuel ratio in
order to raise exhaust temperatures high enough for the doser to activate and regenerate the DPF. Refer to
Section 3.7 for a description of how regeneration works.
Figure 3.6 Air Control Valve (ACV)
3.5 Emissions Control Module (ECM) Description
The Emissions Control Module (ECM), Figure 3.7, monitors the EES parameters, using an internal back pressure
sensor, along with temperature sensors mounted in three locations of the exhaust system. Based on the
parameters, the ECM will initiate automatic regeneration when needed. Further diagnosing with the ECM requires
the ECM Service Tool software. Refer to ECM Service Tool chapter for procedures.
Figure 3.7 Emissions Control Module (ECM)
The ECM will signal to the service light, Figure 3.8, as part of alarm notification. A unit with an illuminated service
light indicates immediate service is needed, and will continue to operate for up to 250 hours in order to protect load
and allow adequate time for delivery. After 250 hours, the unit will shut down until the EES is repaired.
Figure 3.8 Service Light

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3.6 Sensors
The temperature sensors monitor unit operation and report back to the ECM.
3.6.1 Exhaust Inlet Temperature Sensor (ESEIT)
The Exhaust Inlet Temperature Sensor (ESEIT), Figure 3.9, monitors temperature entering the DOC. It is located
just before the Doser and DOC. This temperature is directly dependent upon engine load and determines which
type of regeneration is needed. When upstream temperatures are high enough (during high engine load), passive
regeneration will occur. Refer to Section 3.7 for a description of how regeneration works.
Figure 3.9 ESEIT
3.6.2 Filter Inlet Temperature Sensor (ESFIT)
The Filter Inlet Temperature Sensor (ESFIT), Figure 3.10, monitors exhaust temperature entering the DPF. It is
located after the DOC and before the DPF. This temperature data is utilized to control and maintain regeneration
temperature at approximately 1112 °F (600°C). This temperature is maintained by injecting fuel into the system
(active regeneration), or in some cases, using the ACV to restrict engine air intake (active-assist regeneration).
Figure 3.10 ESFIT

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3.6.3 Filter Outlet Temperature Sensor (ESFOT)
The Exhaust Outlet Temperature Sensor (ESFOT), Figure 3.11, monitors exhaust temperature leaving the DPF. It
is located after the DPF and before the tail pipe. This temperature data is utilized to verify that the regeneration
process is being properly controlled.
Figure 3.11 ESFOT
3.6.4 Back Pressure Sensor (ESFP)
The Back Pressure Sensor (ESFP) measures back pressure at the upstream piping. It is located inside the ECM
module. As the DPF gets filled with soot, back pressure will increase. The ESFP verifies that the regeneration
process is being controlled properly.
Figure 3.12 Back Pressure Sensor (ESFP)
3.7 Regeneration
To treat the diesel soot that gets captured in the DPF, a process called regeneration is utilized. During
regeneration, the temperature in the DPF is increased to a level that oxidizes the captured soot, leaving only (fine)
inorganic ash and significantly reducing back pressure. Regeneration is aided by the Diesel Oxidation Catalyst
(DOC) which raises the temperature of the exhaust entering the DPF. Higher exhaust temperatures improve the
regeneration process in the DPF. The target exhaust temperature for regeneration is 1112°F (600°C).
A regeneration generally takes 15 to 20 minutes and may occur 1 to 3 times per day depending on conditions.
The EES will initiate a regeneration cycle when the following conditions are met:
• Back pressure in the exhaust reaches 24 in/H2O (6kPa) in low speed and 36 in/H2O (9kPa) in high speed.
• Automatic regeneration initiated every 12 hours of run time, or for 6 hours of run time if temperatures are
below 32°F (0°C) at the Emissions Control Module (ECM).

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A manual regeneration can be initiated through the ECM Service tool. Refer to Section 4.3 for procedures.
The three phases of regeneration are explained below:
1. Passive Regeneration
Condition: Engine exhaust temperature is above 662°F (350°C).
Description: During Passive Regeneration, exhaust temperatures are hot enough to start an exothermic
reaction in the DOC without assistance. Only the DOC and DPF are required. Passive Regeneration
saves fuel by extending intervals between Active or Active Assist Regenerations.
2. Active Regeneration
Condition: Engine exhaust temperature is in range of 446° to 662°F (230° to 350°C).
Description: During Active Regeneration, fuel is injected into the exhaust system to raise exhaust tem-
peratures hot enough to start a reaction in the DOC. Fuel is injected into the upstream pipe by the Doser
and then catalyzed in the DOC, which actively increases the exhaust temperature entering the DPF.
3. Active Assist Regeneration
Condition: Engine exhaust temperature is below 446° (230°C).
Description: During Active Assist Regeneration, the Air Control Valve (ACV) restricts engine air intake,
which changes the air-to-fuel ratio and increases the exhaust temperature entering the DOC. Once the
exhaust temperature reaches the level required for Active Regeneration, the Doser injects fuel into the
upstream pipe.
After regeneration is complete, the exhaust temperature will be allowed to return to its normal state. All
temperature data gets sent to the ECM. The ash that remains in the DPF after regeneration is only a fraction of the
original mass; the reduced mass allows back pressure to return to near non-EES values. However, as ash
continues to accumulate in the DPF, the base back pressure will continue to rise. Refer to Maintenance Schedule,
Section 6.2, to see intervals for cleaning DPF.
3.8 System Specifications
Table 3–1 System Specifications
Component Specifications
Fuel Pump 12V, 7.5 Amp max draw
1.6 ohms @ room temperature
ECM Service Tool: “D06 Fuel Pump” test mode
Air Control Valve (ACV) ACV Connector:
Pin 1: Sensor +5V
Pin 2: Signal (PWM)
Pin 3: Sensor -
Pin 4: Motor +
Pin 5: Motor -
ECM Service Tool: “Do1 ACV” test mode
Fuel Injector (Doser) Coil resistance: 12V, 1.2 ohms @ 77°F (25°C)
ECM Service Tool: “DO2 Injector” test mode
Fuel doser current draw is outside the acceptable range of 0.5 -
6.5A for five seconds when energized.
Temperature Sensors:
ESEIT, ESFIT, ESFOT
Range, cont: -40°F to 1382°F (-40°C to 750°C)
Resistance: 230 ohms (RT)
Fail shorted: -148°F (64°C)
Fail opened: >2012°F (1100°C)

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SECTION 4
ECM SERVICE TOOL
4.1 Overview and Initial Setup
The ECM Service Tool, Figure 4.1, is diagnostic software that can test the functionality of individual EES
components initiate regeneration, display alarm codes, provide current sensor readings. retrieve data from the
ECM, and more.
The ECM Service Tool software v2.0.28 is required to communicate with the ECM. This can be downloaded from
the Carrier Transicold website. With the software installed, connect the computer to the ECM through an ECM
CAN Adapter, Figure 4.2, part number 07-00533-01.
Figure 4.1 ECM Service Tool
Figure 4.2 ECM CAN Adapter

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When the ECM Service Tool program is first opened and the USB connector from the ECM CAN Adapter is
connected to the computer, a message will indicate that a new driver has been installed. If the driver has not been
installed properly, the software will automatically complete driver installation.
The ECM Service Tool will setup the port the first time you open the program. When the ECM is communicating,
the status on the bottom left side of the screen will display "Connected". Refer to Figure 4.3.
Figure 4.3 ECM Service Tool - Connected
4.2 Component Check
Component check, Figure 4.4, is for testing the functionality of individual EES components by cycling the
components on and off. Each component will energize for one cycle. The engine must be off.
NOTICE
When checking components, disengage the starter so that the unit will not start. Components
should be tested with switch power only.
4.2.1 Air Control Valve (ACV)
1. From the Setup screen, click on the AR-DOC tab.
2. Click the DO1 ACV button once to activate ACV. The ACV will go through one cycle. As the ACV cycles, the
motor will make a slight, audible sound which indicates that the valve is working properly.
3. Click the DO1 ACV button again to deactivate the ACV.