Hitachi HSU-12RD03/R2(SDB) - Manual (Page 5)

2.Making a Hole on the Wall and Fitting the Piping Hole Cover
When the mounting plate is fixed side bar and lintel
Refer to the previous article, " When the mounting plate is first fixed ", for the
position of wall hole.
Fix to side bar and lintel a mounting bar, Which is separately sold, and then fasten
the plate to the fixed mounting bar.
Make a hole of 70 mm in diameter,
slightly descending to outside the wall.
Install piping hole cover and seal it
off with putty after installation
(Section of wall hole) Piping hole pipe
Outdoor side
Thickness
of wall
Indoor side
Wall hole
70mm
Indoor unit
1.Fitting of the Mounting Plate and Positioning of the wall Hole
When the mounting plate is first fixed
1.Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be
fixed against the wall, then temporarily fasten the plate with one steel nail.
2. Make sure once more the proper level of the plate, by hanging a thread with a weight from
the central top of the plate, then fasten securely the plate with the attachment steel nail.
3. Find the wall hole location A using a measuring tape
A=155mm
70mm
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