Gen 7 Series CO₂ DX Flooded System

The Gen 7 R134a Flooded / R744 Rack System has been designed to reduce stress on brazed plate heat exchangers with a passive R134a fully flooded / R744 thermosiphon operation. The R744 thermosiphons vapour from the top of the liquid receiver and condenses the vapour in the primary side of the BPHE returning liquid to the vessel. The R134a separation vessels flood the secondary side of the BPHE thermo-siphoning back to the top of the separation vessel. The new design reduces commissioning time and provides more stable operation under all conditions as the discharge gas is diffused into the liquid refrigerant within the liquid receiver via a BITZER designed and PATENTED sparge tube assembly.