... ceiling, match the different style diffuser. Never occupy the place.4.inverter type, saving more 45% energy than traditional fan coil ... worry about the leak problem.5. Coil-cooling Advanced expansion pipe process make the high heat exchange;No cold bridge design ... , no need to disassemble the unit. Avaliable configurations: 1. 2 pipe, 4 pipe optional 2. 220V, 230V, 50HZ, 60HZ, optional3. the unit ...