Multifunction Packaged Liquid Chiller designed and developed by Frost Italy are air/water cooled multifunction units for climate control in terms of both cooling and heating with high temperature hot water production. A Multifunction chiller installation connected to internal terminals is completely autonomous in the production of hot and chilled water with no need for a boiler and is typified by raised energy efficiency and low running costs. These air/water cooled units with heat pump use eco-refrigerant R410 A, are fitted with scroll compressors with intermediate steam injection and economiser and allow total heat recuperation for the heating of hot water both in Cooling or Heating mode.