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HFO-1234ZE(E)/CO2 CASCADE SELECTED FOR THE RETROFIT OF A CZECH HYPERMARKET

HFO-1234ZE(E)/CO2 CASCADE SELECTED FOR THE RETROFIT OF A CZECH HYPERMARKET

03.07.2017

HFO-1234ze(E) and CO2 in a cascade configuration have been selected for the retrofit of a R-404A based system in a major Czech hypermarket.

The customer requirements were a low GWP refrigerant, mildly a flammable (Class A2L) refrigerant for indirect cooling, and a high energy efficiency.

These requirements were met by the use of indirect cooling with HFO-1234ze(E) (GWP =1) for air conditioning (440 kW) and for the medium temperature level (533 kW), and by CO2 direct expansion at the low temperature level (135 kW).
Combined with the choice of efficient refrigerants, the integration of air-conditioning, cooling and heat recovery in one system has delivered a reduction in energy consumption by around 20-30 %.

Source : Product Manufacturer