The Sendo SFM-18ALSI2-AUI wall-mounted indoor unit is suitable for multi air conditioning systems with a capacity of 18000 BTU. Multi-split air conditioning systems offer the convenience of connecting one outdoor unit to more than one indoor unit, providing an economical solution for heating and cooling different rooms. Proper installation of the unit at a height of about 2 meters ensures even distribution of air in the space, as well as comfort during use, avoiding direct contact of the conditioned air with users. It is important to ensure that the outdoor unit has sufficient power to meet the needs of the connected indoor units.