No need to replace everything at once when renovating your air conditioning system. Toshiba SMMS∞ is designed for flexible replacement, it supports mixed operation with both new and existing indoor units. You can replace only the malfunctioning outdoor unit or gradually swap indoor units in vacant rooms, resuming operation each time. That means less downtime and more efficient renovation process. *Note : •ODU Connection can not be mixed. •When the old models are included in the system, the commu