NPG is a multifunction unit charged with R32 gas for the simultaneous but independent production of hot and cold water. The two-pipe units are designed for applications where cold/hot water and domestic hot water is required throughout the year. The four-pipe units are designed for systems where hot and cold water may be requested simultaneously. The machine is fitted with axial fans with reduced sound emissions and scroll compressors with a high yield and low electricity absorption. The NPG has three heat exchangers: one on the environment side (finned pack copper/aluminium) and two indoor (plate). NPG is ideal for residential, commercial and industrial contexts. There are two versions – low noise and high efficiency.