| 摘要 |
<p>The system, comprising an inner (3) and outer (2) unit with ducts (4) and electric fans, with intakes, blowers and a control unit, includes an air distributor (1) on the downstream side of the inner unit (3) blower for selective distribution of air to certain rooms or groups of rooms. At least part of the air in the system is recycled, being heated or cooled as required in the inner unit before being re-distributed round the system at a rate and temperature determined by a thermostat control panel.</p> |
