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You can easily find these systems in offices and large houses. The reason, you can opt for different temperatures from a single AC. This type has an indoor handling unit or outdoor compressor/condenser. Every zone or room does have their own thermostat, and you can adjust the heat in every room as per the need. Now, do you guess the advantages involved? If a certain part of the house or office needs cooling, then this type is favorable. Usually, in offices, it is used in buildings where a comprehensive duct system is not installed.