Page 9 - Contact_N16_EN

Simple and effective implementation Run Yi Co. Ltd, a company that specialises in com- mercial refrigeration and that has over 20 years’ experience in the supermarket sector, was entrusted with installing the chosen refrigeration equipment. A total of three Hitachi units were installed in early January: one unit supplies above-zero cooling to the storage room, while the other two refrigerate the freezing room and the bread and pastry production area respectively. As noted by the installer, “the R-448A filling process was carried out without any problems; technicians who have experience with this application remarked that the desired operating temperature was reached more quickly than with R-404A. Once the goods had been stored, we made a few adjustments to optimise the system. Having monitored the system for a few months, we can say that Solstice® N40 has a bright future both as a retrofit solution and in new installations, and greatly improves energy efficiency.” Description of the installation 9 | CASE STUDY | November 2019 | Climalife contact #16 COMMERCIAL REFRIGERATION I SUPERMARKETS Above-zero cold storage room Storage room for frozen products Bakery production area Units HITACHI KX-R81AHV HITACHI KX-R161AV HITACHI KX-R201AH Cooling capacity 17.5 kW 18.5 kW 47.2 kW Type of compressor and brand HITACHI FL800ELV-144D3 (8 cv) HITACHI FL800EL-144C3 (16 cv) HITACHI FM1001EL-160C3 x 2 (20 cv) Number of compressors 1 2 2 Type of refrigerant R-448A R-448A R-448A Quantity of refrigerant 27.6 Kg 43.5 Kg 91.8 Kg Type of oil IDEMITSU KOSAN FVC32D IDEMITSU KOSAN FVC32D IDEMITSU KOSAN FVC32D Quantity of oil 3I 12 I 8I Evaporating temperature -10°C -30°C -5°C Condensing temperature 45°C 45°C 45°C Evaporating pressure 3.9 bar 1.8 bar 4.7 bar Condensing pressure 20.16 bar 20.16 bar 20.16 bar Mass flow 0.733 Kg/s 0.195 Kg/s 0.361Kg/s Electricity consumption 10.1 kW 22.4 kW 24 kW