21.7. Removal of an air duct of air supply in a back part of salon
We remove a floor casing (see. "Removal of a casing of a floor").
The crosswise screw-driver we unscrew the self-tapping screw of fastening of a back part of an air duct to a floor.
We remove back...
... and lobby of a part of an air duct.
We establish an air supply air duct in a back part of salon in the return sequence.