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3. HOW TO INSTALL THE INDOOR UNIT
1-Way Air Discharge Semi-Concealed Type
(AS Type)
3-1. Suspending the Indoor Unit
(1)
Place the full-scale diagram (supplied) on the
ceiling at the spot where you want to install the
indoor unit. Use a pencil to mark the drill holes.
Refer to Figs. 3-1 to 3-3.
NOTE
Since the diagram is made of paper, it may shrink or
stretch slightly because of high temperature or
humidity. For this reason, before drilling the holes
maintain the correct dimensions between the
markings.
(2)
Follow the diagrams to make the holes in the
ceiling. (Figs. 3-2 and 3-3)
(3)
Depending on the ceiling type:
Insert suspension bolts as shown in Fig. 3-4
or
Use existing ceiling supports or construct a
suitable support as shown in Fig. 3-5.
It is important that you use
extreme care in supporting
the indoor unit from the
ceiling. Ensure that the
ceiling is strong enough to
support the weight of the
unit. Before hanging the unit,
test the strength of each
attached suspension bolt.
(4)
Cut the ceiling material, if necessary (Refer to
Figs. 3-2 and 3-3).
Hole-in-anchor
Hole-in-plug
Concrete
Suspension bolt (M10 or 3/8")
(field supply)
Fig. 3-4
780 (Ceiling opening dimension)
15
Insert
0038_T_I
21
S4179544
Rear
Full-scale diagram
Fig. 3-1
652 (Suspension bolt pitch)
70
4 – 12 X 37 Oblong holes
Fig. 3-2
Drain outlet
560
268
Suspension lug
15
115
40
115
Flared refrigerant connection outlet (narrow tube)
Flared refrigerant connection outlet (wide tube)
Fig. 3-3
Ceiling support
Fig. 3-5
Front face
1 1 1 1 1
AS
2 2 2 2 2
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3 3 3 3 3
70
4 4 4 4 4
5 5 5 5 5
0036_AS_I
6 6 6 6 6
Power wiring outlet
7 7 7 7 7
8 8 8 8 8
0037_AS_I
Ceiling tiles
9 9 9 9 9
FM
0 0 0 0 0
- - - - -
0039_S_I
RC
= = = = =
WT
S
X
K
T
U
D
F
C
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