| 摘要 |
PURPOSE:To enable the keeping of air in a room to be air conditioned fresh by arranging an incoming outside air duct and an outgoing internal air duct with a space on the rear of a ceiling for installation. CONSTITUTION:An incoming outside air duct 1D2 is arranged utilizing a space on the rear of a ceiling for installation and a first casing S1C of an application side unit SU is connected to a second easing N2C of a heat source side unit NU at an upstream point from a heat exchanger SC communicating therewith. An outgoing internal air duct OD2 is arranged utilizing the space on the rear of the ceiling and a second casing S2C of the application sideunit SU is connected to a first casing NC of the heat source side unit NU communicating therewith. This enables the keeping of air in a room to be air conditioned fresh without exerting pressure on a dwelling space and an external space. |
