Internal machine type：Down wind External machine type：Bottom mounted (double fan); Rated voltage：48V Rated maximum input current：20A ; Rated maximum input power：960W Frequency conversion/fixed frequency：Frequency conversion Heating or cooling type:Single cool; Rated maximum cooling capacity: 2700W External machine size（mm） :W630×D430×H248 External machine weight:25.0kg Internal machine size （mm） :W665×D200×H320 Internal machine weight:7.0kg ; Temperature range: (18-28)℃ Refrigerant type:HFC-407c; External machine waterproof rating:IPX7