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tru -- ARB approves full verification of Carrier Legacy EES diesel particulate filter for TRUs (reefers)

Posted: 18 Nov 2014 08:11:59
The California Air Resources Board (ARB) has granted full
verification status to the Carrier Transicold Legacy Engine
Emissions System (Carrier Legacy EES) for certain transport
refrigeration units (TRU) with no limits on hours of accrued
engine operation at time of installation. 

Carrier Transicold has completed all of the requirements to be
fully verified, including extensive field demonstrations under
worst-case conditions, showing reliable backpressure control with
older, dirtier engines operating in cold weather at higher
elevations.  The Carrier Legacy EES is a Level 3 Plus diesel
emission control strategy that reduces particulate matter (PM)
emissions by at least 85 percent without increasing nitrogen
dioxide emissions more than 20 percent of total nitrogen oxides.

The Carrier Legacy EES is fully verified for use on Carrier
X2-Series, XT-Series, XTC-series, Genesis TM900, Genesis TM1000,
Ultra XL (with and without standby), Vector 6500, and Vector
6600MT TRUs equipped with model year 2004 through 2012 Kubota
engines, as listed on the Engine Family List for the Carrier
Legacy EES at ARB's Verification Procedure Website for the
Carrier Legacy EES at: 
http://www.arb.ca.gov/diesel/verdev/companies/carrier/carrier_legacy-ees.htm
(to be posted in the next few days).

There is no limit on engine operation at time of installation;
but engines must be maintained in accordance with the engine and
original equipment manufacturers’ specifications and meet all of
the pre-installation compatibility assessment criteria
established for the Carrier Legacy EES.

The Carrier Legacy EES uses an automatic filter regeneration
system to oxidize the collected diesel soot and control engine
backpressure to within the engine manufacture’s specifications. 
The regeneration system uses an engine intake air control valve,
a diesel fuel doser, a flameless diesel oxidation catalyst, and a
catalyzed silicon carbide wall-flow filter with an electronic
control unit to achieve reliable backpressure control. 
Double-wall insulation is used to reduce exhaust system component
surface temperatures, providing operator and equipment safety. 
The Legacy EES uses commercially available fuel that meets the
federal and California sulfur limits – the same fuel available at
all trucks stops in the U.S.

The terms and conditions for which the Carrier Legacy EES has
been approved may be found in ARB’s Executive Order at ARB's
Verification Procedure Webpage for the Carrier Legacy EES at: 
http://www.arb.ca.gov/diesel/verdev/companies/carrier/carrier_legacy-ees.htm.
 Additional information about the Carrier Legacy EES may be found
at Carrier Transicold’s Legacy EES webpage: 
www.carrier.com/tru-legacy.

Level 3 DECS meet ARB’s TRU Regulation’s Ultra-Low-Emission TRU
(ULETRU) in-use performance standard.  All model year (MY) 2006
and older TRUs and TRU gen set engines must meet ULETRU now.  MY
2007 TRU engines must meet ULETRU by the end of 2014 and MY 2008
engines, by the end of 2015.  Engine repowering will no longer be
a compliance option for MY 2008 engines because replacement
engines that fit and perform are no cleaner than the old in-use
engines being replaced.  Retrofitting with a Level 3 VDECS is a
compliance option that is less costly than replacing the entire
unit.

Where can I get more information?

For general information about the TRU Regulation, the TRU Website
is at:  http://www.arb.ca.gov/diesel/tru/tru.htm

ARB’s Verification Procedure Website is at:
http://www.arb.ca.gov/diesel/verdev/verdev.htm

If you have questions about TRU compliance or registration in
ARBER, please call the TRU Help Line at 1-888-878-2826 or call
1-916-327-8737.

Background:  TRUs are refrigeration systems powered by integral
diesel internal combustion engines designed to control the
environment of temperature-sensitive products that are
transported in trucks, trailers, shipping containers, and
railcars.  The emissions from these units are a source of
unhealthful air pollutants including particulate matter, toxic
air contaminants, nitrogen oxides, carbon monoxide, and
hydrocarbons, that all pose a potential threat to both public
health and the environment. These units often congregate in large
numbers at California distribution centers, grocery stores, and
other facilities where they run for extended periods of time to
ensure their perishable contents remain cold or frozen. These
distribution and loading facilities are often in close proximity
to schools, hospitals, and residential neighborhoods.  In 2004,
the TRU Airborne Toxic Control Measure (ATCM) was adopted by the
Board to reduce diesel particulate matter emissions from TRUs and
TRU gen set engines.  Amendments were adopted by the Board in
November 2010 and October 2011.



California is in a drought emergency.
Visit www.SaveOurH2O.org for water conservation tips.

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