Air to water 4 pipe units 4VS-EA HC: 74 kW ÷ 256 kW CC: 67 kW ÷ 232 kW RC: 67 kW ÷ 236 kW EXT: -12°C OUT: 60°C High efficiency 4 pipe unit air/water with axial fans and scroll compressor with INVERTER Product page Documentation QUATTRO PROZONE HC: 51 kW ÷ 881 kW CC: 48 kW ÷ 779 kW RC: 60 kW ÷ 1083 kW EXT: -18°C OUT: 60°C Multi-functional air-water unit, for outdoor installation, equipped with scroll compressors and axial fans for associated 4 pipe systems. Product page Documentation QuickSel advanced search This email address is being protected from spambots. You need JavaScript enabled to view it.