| 摘要 |
<p>Disclosed is a heat exchanger device 1 for use in a ventilation unit. The heat exchanger device 1 comprises a first fluid flow path array comprising a plurality of fluid channels having a first fluid inlet side to the heat exchanger device 1 and first fluid outlet side from the heat exchanger device 1. The heat exchanger device 1 also includes a second fluid flow path array comprising a plurality of fluid channels through the heat exchanger device 1 having a second fluid inlet side to the heat exchanger device 1 and a second fluid outlet side from the heat exchanger device 1, the first and second fluid pathway arrays being in heat exchange contact via intervening heat exchange surfaces. In a first mode of operation means 7,8 are provided for selectively zoning the respective fluid channel arrays such that for a given zone flow is permitted in one of the arrays whilst being inhibited in the other. The closing or masking of zones can be by means of hinged vent closure members which can be rotated between open and closed positions.</p> |
