California Air Resources Board

Carrier Transicold’s Engine Emissions System^TM (EES) has been fully verified as a Level 3 Plus diesel emission control strategy that reduces particulate matter (PM) emissions by 85 percent or more without increasing NO₂ emissions more than 20 percent of NO_x. The Carrier EES is verified for use on Carrier X4 7300 and 7500 TRUs, Vector 8500 and 8600MT TRUs, and Carrier UG and RG TRU generator sets equipped with model year 2012 through 2018 Kubota model V2203L-DI-EF01e engines rated at less than 25 horsepower.

There is no limit on the accrued hours of operation at time of installation; but engines must be maintained in accordance with the engine and original equipment manufacturer’s specifications. New TRUs may be retrofit with the Carrier EES, but only concurrent with the sale or lease of the new TRU. 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 sold at trucks stops in the U.S.A. Lab and field tests showed fuel consumption increased less than 1 percent with the EES, compared to baseline. The terms and conditions for which the Carrier EES has been approved may be found in the Executive Order below.  See Carrier Transicold’s True Power of Blue for more information.

Note: Prior versions of Executive Orders are available upon request.