4
3. Installing the indoor unit
3.2.3. Installing the wall mounting fixture
sSince the indoor unit weighs near 30 kg, 66 lbs selection of the mounting
location requires thorough consideration. If the wall does not seem to be
strong enough, reinforce it with boards or beams before installation.
sThe mounting fixture must be secured at both ends and at the centre, if
possible. Never fix it at a single spot or in any nonsymetrical way.
(If possible, secure the fixture at all the positions marked with a bold arrow.)
(Fig. 3-4)
Warning:
If possible, secure the fixture at all positions indicated with a bold arrow.
Caution:
•The unit body must be mounted horizontally.
•Fasten at the holes marked with ▲ as shown by the arrows.
1Fasten a thread to the hole.
2The level can be easily obtained by hanging a weight from the string and aligning the string
with the mark.

3.3. When embedding pipes into the wall (Fig. 3-5)

•The pipes are on the bottom left.
•When the cooling pipe, drain pipes internal/external connection lines etc are to be
embedded into the wall in advance, the extruding pipes etc, may have to be bent
and have their length modified to suit the unit.
•Use marking on the mount board as a reference when adjusting the length of the
embedded cooling pipe.
•During construction, give the length of the extruding pipes etc some leeway.
AMount board
BReference marking for flare connection
CThrough hole
DOn-site piping

3.4. Preparing the indoor unit

Rear, right and lower piping (Fig. 3-6)
1. Bind the cooling pipe and drain pipe together.
•Bind the pipes together with vinyl tape at three or more points. This will facilitate
passing the pipes through the wall.
2. Remove the corner box and knock out the knockout holes as necessary.
•Remove the corner box by pushing in a downward direction b, while at the same
time, pressing in the upper side part of the corner box a.
ACorner box
BUnder cover
Left and left rear piping (Fig. 3-7)
1. Remove the under cover.
•Remove the under cover by sliding it towards the rear of the unit b, while at the
same time, pressing the two points marked by arrow heads a.
2. Remove the corner box and knock out the knockout holes as necessary.

Fig. 3-7

Fig. 3-4

Fig. 3-5

Fig. 3-6

A
B
D
C
aAb

a

a

A

B

b

b

ABC
B
A
A
1-3/16~1-37/64
CAB
(inch)
AMin. 140 mm,
5-1/2 inch
BMin. 300 mm,
11-13/16 inch
CMin. 55 mm,
2-3/16 inch
DMount board

Fig. 3-8

Fig. 3-9

3.5. Mounting the indoor unit

1. Affix the mounting plate to the wall.
2. Hang the indoor unit on the two hooks positioned on the upper part of the mount-
ing plate.
Rear, right and lower piping (Fig. 3-8)
3. Affix the indoor unit.
4. After connecting the pipes, put the corner box back to where it was (follow the
removal steps backwards).
ASquare hole
BHooks
Left and left rear piping (Fig. 3-9)
3. Cut out a mounting piece from the packaging material.
4. Pull the indoor unit up towards yourself as shown in the figure below and slide the
mounting piece in to the mounting plate using the mounting piece setting marks
as reference.
5. After connecting the pipes and wiring, put the under cover back to where it was,
and remove the mounting piece and affix the indoor unit as shown in the left
figure.
6. Put the corner box back to where it was.
AMounting piece
BCeiling
CRib
BG79U874H01_en 05.11.30, 9:234