Arbonia DXH-ECM Instrucciones De Instalación, Uso Y Mantenimiento página 35

2.8
2.9
For a correct operation of the unit DXH-ECM don't
connect any duct on the return side and respect the
minimum suggested dimension of the air intake grid.
In the MV versions it is possible to direct the air flow
by changing the inclination of the grid, as shown in
the illustration.
2.10 Air supply
orientation
grid - air flow
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