Supra truck refrigeration units from Carrier Transicold now meet the U.S. Environmental Protection Agency (EPA) Tier 4 emissions standard, according to the company. The units’ Tier 4 diesel engines not only meet EPA particulate matter and NOx standards, but also comply with California Air Resources Board (CARB) requirements for new truck reefer systems.
For fleets with older Carrier systems, the company is also offering Tier 4 engine swaps to meet CARB retrofit requirements. The new engines fit any corresponding older Supra model without any special modifications, according to the company.
The Tier 4 Supra engines reduce PM emissions well below the new EPA requirement of 0.4 grams per kilowatt-hr., Carrier said, while also cutting NOx below the new 2008 standards. The engines are now standard on Carrier Supra 550, 650, 750, 850 and 950 models, as well as its Genesis R-90 units.