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A room air conditioner mounted on an external building wall, comprising an indoor unit, an outdoor unit and an interface unit. The indoor unit includes an indoor cabinet having a suction opening and outlet port for indoor air, an indoor heat exchanger, and an indoor fan. The outdoor unit includes an

A room air conditioner mounted on an external building wall, comprising an indoor unit, an outdoor unit and an interface unit. The indoor unit includes an indoor cabinet having a suction opening and outlet port for indoor air, an indoor heat exchanger, and an indoor fan. The outdoor unit includes an outdoor cabinet having a suction opening and outlet port for fresh air, an outdoor heat exchanger, an outdoor fan and a fan motor which engages the outdoor and indoor fans. The interface unit is mounted in the external building wall and includes a fan drive shaft engaged at the first end by the fan motor in the outdoor cabinet and engaging the indoor fan. The room air conditioner produces less noise compared to room air conditioners of the prior art, while requiring a significantly smaller exterior wall opening for installation, at the same time providing the flexibility to permit the introduction to the room of fresh outside air, the humidification of heated air in the heating mode, and the cooling or heating of air in more than one room.

대표청구항 ▼

1. A room air conditioner mounted on an external building wall, the room air conditioner comprising:(a) an indoor unit including: (i) an indoor cabinet; (ii) an indoor heat exchanger mounted in said indoor cabinet; (iii) an indoor fan mounted in said indoor cabinet, and (iv) means for humidifying sa

1. A room air conditioner mounted on an external building wall, the room air conditioner comprising:(a) an indoor unit including: (i) an indoor cabinet; (ii) an indoor heat exchanger mounted in said indoor cabinet; (iii) an indoor fan mounted in said indoor cabinet, and (iv) means for humidifying said indoor air, disposed in said indoor cabinet, (b) an outdoor unit including: (i) an outdoor cabinet; (ii) an outdoor heat exchanger mounted in said outdoor cabinet; (iii) an outdoor fan mounted in said outdoor cabinet; (iv) a fan motor mounted in said outdoor cabinet, and (v) a pump connected to a condensate transfer tube, and (c) an interface unit mounted within an opening in the external building wall, said interface unit for communicating between said indoor unit and said outdoor unit, wherein said condensate is conveyed by said pump to said means for humidifying said indoor air via said interface unit.