01. Turn Off AC/Heat Blower
The AC/heat blower must be turned off before installing the filter.
02. Install Filter
Wall unit:
Insert the filter into the wall unit in the direction of the arrow as shown in the figure.
Central unit:
Please determine the wind direction of the AC/heat blower first, and then insert the filter with its arrows matching the wind direction.
How to judge wind direction:
Place a paper towel in the central unit to determine wind direction. Install the filter with the arrow facing the direction in which the paper towel blows.