... .inverter type, saving more 45% energy than traditional fan coil unit. General Parameter:Air flow(m3/h): 340~2380Cooling capacity(kw ... , 4 pipe optional 2. 220V, 230V, 50HZ, 60HZ, optional3. the unit without electric heating, with electric heating optional. Accessories:1. wall ... , how to operation and how to maintenanceIf you buy the system, we guarantee to provide you the manual of installation, how ...