Equipment

CARB Approves Full Verification of Carrier Engine Emissions System

April 24, 2014 - Products

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Carrier Transicold

The California Air Resources Board has granted full verification status to the Carrier Transicold Engine Emissions System for certain transport refrigeration units (TRU or reefer) and TRU generator sets (gen sets) with no limits on hours of accrued operation at time of installation.

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

The Carrier EES is fully verified for use on Carrier X4 7300 and X4 7500 TRUs, Vector 8500 and 8600MT TRUs, and Carrier UG and RG TRU gen sets equipped with model year 2012 through 2015 Kubota model V2203L DI-EF01e engines rated at less than 25 horsepower.

There is no limit on engine operation at time of installation; but engines must be maintained in accordance with the engine and original equipment manufacturer‚s specifications.

The Carrier 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 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.

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