Contaminated air purifier unit - has filter assembly replaceable by swinging out supporting bolts from seat brackets

摘要

The air purifying assembly (1) consits of air inlet head (2), air heater (9) mechanical filter (3) and charcoal filter (4). On top of this assembly the purified air head (21) with pressure bolt (19) is fitted, the head (21) has connection (22) to the purified air supply ducting. If the mechanical filter part only has to be replaced, quick release connections (12) and bolts on flange (13) are disconnected followed by the removal of the filter (3) while door (5) is in the open position. When both mechanical filter (3) and charcoal filter (4) has to be replaced, door (5) is fully opened and by operating swivelling arms on sides of the assembly both parts are removed by sliding-off support bolts (24) from the bracket fitted to the door inside surface.