Co2 cascade rack
• Cascaded medium and Low temperature racks meet load requirement of large/medium size supermarkets and cold rooms.
• Medium temperature system uses R134a while low temperature system uses CO2 (R744)
• CO2 is a natural and environment friendly refrigerant, ODP=1, GWP=1, nonpoisonous and nonflammable.
• CO2 has good flow characteristics and high unit volume cooling capacity. It significantly reduces the size of tube and all components in the system compared with traditional freon system.
• MT system has digital energy regulating features and LT system has inverter. It can provide stepless capacity modulation within the load range of 20%~100%. This feature saves energy and reduces on-off cycle times of compressor and temperature fluctuation of cold room.
• Stably controlled condensing temperature of LT system makes system reliable.
• Auxiliary refrigeration unit prevents the LT system from over-high pressure when system in long time idle.