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A zoned air conditioning system using a room air terminal which has the same horizontal dimensions as a floor tile of a raised tile floor such that the terminal may replace one tile in such a floor. The terminal includes a cool air inlet below the floor for drawing in cooling air circulated in the u

A zoned air conditioning system using a room air terminal which has the same horizontal dimensions as a floor tile of a raised tile floor such that the terminal may replace one tile in such a floor. The terminal includes a cool air inlet below the floor for drawing in cooling air circulated in the under floor space and a return air inlet in the top surface of the terminal. The cool air and return air is mixed in a mixing chamber and drawn from the mixing chamber by a fan and returned to the room through an outlet vent. The ratio of cool air to return air mixed in the mixing chamber is controlled by a modulating damper which is controlled in response to the temperature of the return air in order to control the room temperature in the region of the terminal in accordance with an adjustable set point. A heater is also provided in the terminal for those occasions where the return air is cooler than the set point.

대표청구항 ▼

A self-contained air circulating terminal configured to be substituted for a floor module in a raised floor of an under floor delivery air conditioning system, said terminal being electrically powered and comprising: a housing configured to be connected into said raised floor in place of a floor til

A self-contained air circulating terminal configured to be substituted for a floor module in a raised floor of an under floor delivery air conditioning system, said terminal being electrically powered and comprising: a housing configured to be connected into said raised floor in place of a floor tile at a floor tile receiving location and including an upper surface for flush disposition with the floor surface; an inlet chamber in said housing having a first inlet formed on the upper surface and opening into a space to be serviced and a second inlet provided through an opening located below the level of the raised floor to communicate with a plenum under said floor; an outlet chamber in said housing having an outlet formed in the upper surface and opening into the space to be serviced; an electric fan located between said inlet chamber and said outlet chamber to propel air from said inlet chamber to said outlet chamber; proportioning means for controlling the proportion of air flowing into the inlet chamber from said first inlet and said second inlet respectively; temperature sensing means for sensing the temperature of air entering said first inlet; and modulating means for modulating said proportioning means in accordance with the temperature of air entering said first inlet to control the temperature of the air propelled to the outlet chamber; and an electric power connection.