3
3. Installing the indoor unit
3.1. Installing the wall mounting fixture (Fig. 3-1)
3.1.1. Setting the wall mounting fixture and piping positions
X
Using the wall mounting fixture, determine the unit’s installation position
and the locations of the piping holes to be drilled.
Warning:
Before drilling a hole in the wall, you must consult the building contractor.
A
Supporting piece
B
Mount board
C
Main body
D
Slot (4-4.5 × 35 mm, 11/64 × 1-3/8 inch)
E
Knockout hole (8-ø4.3 mm, 11/64 inch)
F
Level setting standard
G
Knockout hole
H
Knockout hole (12-ø2.6 mm, 7/64 inch)
I
Knockout hole (4-ø9 mm, 23/64 inch)
J
Knockout hole (87-ø5.4 mm, 7/32 inch)
K
Piping hole (ø65 mm, 2-9/16 inch)
L
Slot (4-4.5 × 40 mm, 11/64 × 1-37/64 inch)
M
Slot (4-4.5 × 37 mm, 11/64 × 1-29/64 inch)
N
Slot (4-11 × 20 mm, 7/16 × 25/32 inch)
W:
Location for wall holes
X
Wall mounting fixture
Y
Hole centre
Z
Align the scale with the line.
V
Insert scale.
3.1.2. Drilling the piping hole (Fig. 3-2)
X
Use a core drill to make a hole of 90-100 mm, 3-35/64–3-15/16 inch
diameter in the wall in the piping direction, at the position shown in the
diagram to the left.
X
The hole should incline so that the outside opening is lower than the
inside opening.
X
Insert a sleeve (with a 90 mm, 3-35/64 inch diameter and purchased
locally) through the hole.
Note:
The purpose of the hole’s inclination is to promote drain flow.
3.1.3. Installing the wall mounting fixture
X
Since the indoor unit weighs near 10 kg, 22 ibs, 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.
X
The mounting fixture must be secured at both ends and at the centre, if
possible. Never fix it at a single spot or in any unsymetrical way.
(If possible, secure the fixture at all the positions marked with a bold
arrow.) (Fig. 3-3)
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
S
as shown by the arrows.
1
Fasten a thread to the hole.
2
The level can be easily obtained by hanging a weight from the string and aligning the
string with the mark.
3.2. Preparation for piping connection
X
Remove the vinyl band that holds the drain pipe.
1
Rear, right and lower piping (Fig. 3-4)
X
Bind the refrigerant pipes and drain pipe with vinyl tape at three or more
points. This will facilitate passing the pipes through the wall.
A
Vinyl tape
X
This figure is viewed from the back of the unit.
2
Left and left rear piping
2
-
1
For left rear piping, pull the pipes out the hole to determine their correct
length, then bend them. The indoor unit should hang on the wall mounting
fixture. (Fig. 3-5)
B
Wall
C
Wall hole
D
Bent section
E
Refrigerant pipe
F
Drain pipe
G
Transmission cable
Fig. 3-1
Fig. 3-2
(inch)
Fig. 3-3
1-19/32
9-21/32
7-47/64
1/8
11-9/64
23/64
9-27/32
7-31/64
17-23/32
4-5/16
17-23/32
3-1/8
3-1/8
12-29/32
11-47/64
4-5/16
10
5
3-15/16
A
Sleeve
B
Hole
C
(Indoors)
D
Wall
E
(Outdoors)
A
Min. 3-15/16 inch
B
Min. 5-1/8 inch
C
Min. 2-21/64 inch*1
D
Mount board
*1 : 2-23/32 inch or more for left
and left back piping
450
Fig. 3-4
Fig. 3-5
2
-
1
1
