Daikin Europe, a division of Japanese manufacturer Daikin Industries, in observing the operation of its CO2 (R744) Conveni-Pack integrated HVAC&R condensing unit system at retail demonstration sites in Europe, found that user/staff behavior can have a “large impact” on energy consumption and that adhering to manufacturer installation guidelines in regard to system location “significantly” influences performance.
Nishant Karve, Environmental Research Engineer, Environmental Research Centre for Daikin Europe, presented the “lessons learned” from the Conveni-Pack demonstration sites and compared the lifecycle climate performance (LCCP) of the CO2 packs to the previous pack containing HFC (410A) refrigerant at the November 2022 ATMOsphere (ATMO) Europe Summit in Brussels. ATMO Europe was organized by ATMOsphere, publisher of R744.com.
Designed for convenience stores or small supermarkets, Daikin’s CO2 Conveni-Pack is an integrated refrigeration/air-conditioning/heating system using CO2 refrigerant. A prototype was first installed at a Belgium convenience store in January 2020. Traditionally, stores have two independent systems: One provides food refrigeration, and the other meets indoor heating/cooling demand. “The Conveni-Pack, on the other hand, is a combined unit satisfying all three of these functions with one outdoor unit,” Karve said.