9
Overall description, continued
This illustration shows the two air flow paths through the unit . The airflow direction can be
changed by changing operation mode as described on page 16 .
Pos . Mode A
Mode B
Illustration
A
Extract air
Outdoor air
B
Supply air
Exhaust air
C
Exhaust air
Supply air
D
Outdoor air
Extract air
Fig . 4
Air flow direction
in mode A / B
B
A
C
D
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