| 摘要 |
An apparatus 1 controlling the climate of an inner environment 3 comprises a heat exchanger 15 and a reversible heat pump 17 for controlling air temperature in the inner environment by heating (fig 1) or cooling (fig 2) air discharged into the inner environment. Air heated or cooled is dependent on the temperature of the air in the inner or an outer environment 5. A portion of the air from the outer environment may by-pass the heat exchanger and re-combine with the air flowing through the heat exchanger. Air quality in the inner environment may be controlled by replacing the air flowing from the inner environment to the outer environment. All air flowing to the inner environment may by-pass the heat exchanger if heating or cooling is not required (fig 3). The heat pump may heat or cool air that bypasses the heat exchanger, or heat or cool air re-circulated within the inner environment (fig 4). A humidifier 37 may control humidity of the air to the inner environment by adding steam or water to the air. One or more filters 31a, 31b, 33 may filter the air. Two fixed or variable speed fans 39, 41 supply or extract air. |
