The system, manufactured by Kysor Warren Epta US, was installed at a Minnesota supermarket that opens this week.
But continued growth in the adoption of R744 requires clear regulation, training, innovative products and awareness-raising, according to a market-trends panel.
The ECO2 remote condensing unit is going through the UL certification process and will be ready for field testing once approved.
CO2 installations include warm regions of the U.S., such as California, Florida, Texas and Georgia.
The hybrid event, scheduled for October 13-14, is accepting case study abstracts until July 31.
The 10th edition of the event returns to the U.S. capital to engage with refrigerant regulators.
Five stores in the southern U.S. will use FTE technology to increase efficiency in warm climates.
Kysor Warren Epta US Corp. positions Epta to enter North and Central American markets, following its acquisition of Lennox subsidiary.