Alfa Laval's series of flooded evaporators in the capacity range 200-1100 kW are designed to achieve the highest evaporation temperatures available in the industry in combination with oil-free compressors.     Heavy year-round air conditioning and process cooling increase demand for energy-efficient solutions at full and partial load. The aim of this evaporator concept is to maximize performance in terms of the power consumption of the compressor versus the achieved cooling capacity. While a normal water-cooled chiller can ensure a coefficient of performance (COP) value around 5, EF flooded evaporators in combination with oil-free compressors can ensure COP values beyond 6 at full load. This efficient performance results in notably lower energy consumption in comparison with a traditional screw chiller. The EF series includes four evaporator models ranging from 225 kW (64 RT) to 1100 kW (313 RT) nominal cooling capacity in the single and double refrigerant circuit version. This flooded evaporator series was specifically designed to operate with oil-free compressors and should not be used with other compressors. EF flooded evaporator models are equipped with : • Integrated separator, which permits no external vessel • Optimal refrigerant distribution and tube geometry, preventing preferential flows • Water-side low pressure drop design • Global compactness, which reduces the footprint of the chiller and the refrigerant charge The evaporator standard equipment includes compressor supports, welded feet and refrigerant sight glasses. Options like thermal insulation and liquid level management are available as non-standard alternatives (AISI316L for the water-side or Cu/Ni 90/10 for tubes).