Importance Of Engine Maintenance; Introduction; Installation; Importance Of Diesel Emission Control Strategy - Carrier UG 15 Tier 4 Operation And Service Manual

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.
SECTION 2
INTRODUCTION
2–1 T-378