To overcome the shortage of NatRef technicians, the industry needs to adopt a longer-term approach to recruitment and training, according to representatives from NASRC, CoolSys and Mt. San Antonio College.
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.
Two Panasonic 10HP (7.5kW) transcritical CO2 condensing units were installed at an Ambey’s Big Apple supermarket in Sydney.
In South Burlington, Vermont, the chain has installed a lineup of R290 low-temperature cases along with a CO2/glycol chiller to cool medium-temperature cases.
Installed at its first Raley’s supermarket, the system is the California chain’s answer to impending state regulations capping the GWP of refrigerant at 150.
The retailer has installed the technology in more than 100 stores – with more on the way
With 69 installations, ALDI is the No. 1 user of transcritical CO2 refrigeration systems in the U.S. supermarket industry, and its aggressive store expansion and remodeling plans call for even more.
The small chain is running a Hussmann system in a GreenChill-certified store, with two more installations slated for 2018.
Commercial refrigeration is just one of many applications that are increasingly relying on CO2 systems to meet their HFC phase-down commitments in 2017.
