A single installation is comprised of an inside unit and an outside unit. Multi split systems supply up to 5 inside units with a single outside unit. The greatest benefits of a multi system are that much less space is needed and the installation is simpler.
The classical single-installation is comprised of one indoor unit and one outdoor unit.
For wall use, the selection of inside units is especially large. Fixed speed regulated units and various models with inverter technology cover a large requirement range.
An elegant solution for air conditioning multiple rooms is the installation of a multi split system. One outside unit is capable of supplying two to five inside units of your choice.
The benefits of a multi system are that much less space is needed and the installation is simpler while at the same time maintaining higher energy efficiency.