Room fan coil convector - has part of supply air recirculated within casing for improved sensitivity of thermostat

摘要

The fan (8) fitted within the casing draws air either from the outside (2) or from the room (5a) or a combination of both by operating a butterfly damper (4). The air after passing the filter (6) and thermostat sensor (7) enters the inlet opening of the fan (8) which then discharges it through the heating- or colling coil (9) into the room via inlet grilles (13). - Part of the air stream leaving the coil at its end zone is caught by diverting edge and re-directed downwards through a recirculating channel created in the casing and passes against the end pair of sensor.