42
S4179544
6
6
6
6
6
U
Fig. 3-81
■
Concealed-Duct Type ( U Type)
3-25.
Required Minimum Space for
Installation and Service
●
This air conditioner is usually installed above the
ceiling so that the indoor unit and ducts are not
visible. Only the air intake and air outlet ports are
visible from below.
●
The minimum space for installation and service is
shown in Fig. 3-81 and Table 3-4.
●
It is recommended that space is provided (450
×
450 mm) for checking and servicing the electrical
system.
●
Fig. 3-82 and Table 3-5 show the detailed dimen-
sions of the indoor unit.
Table 3-4
Type
A (Length)
Number of
duct flanges
36, 48
1,560
4
Fig. 3-82
Table 3-5
Length
Type
9, 12, 18
25
36, 48
A
B
C
D
E
F
G
H
I
692
600
46
280
310
750
830
220
35
(150
×
4)
992
900
46
290
310
1,050
1,130
240
45
(150
×
6)
1,422
1,350
36
335
315
1,480
1,560
280
60
(150
×
9)
250
590
Air outlet duct flange
A (Suspension bolt pitch)
Indoor Unit
250
Inspection
access
450
450
650
Electrical
component
box
Refrigerant
tubing
400
0098_U_I
9, 12, 18
830
2
25
1,130
3
310
180
2-
ø
3.3
(Hole)
6
38
665
100
15
285
117
50
30
252
120
145
170
30
665
25
15
590
(Suspension bolt pitch)
40
(50)
79
450
E
D
D
D
F
G
(Suspension bolt pitch)
H
73
I
H
H
H
I
195
74
12-
ø
3.1
(Hole)
107
107
13
4-
ø
3.1
(Hole)
175
120
120
125
256
(O.D)
26
29
A
2-
ø
3.3
(Hole)
ø
3.3 (Hole)
B
42
450
C
Refrigerant tubing joint (narrow tube)
Refrigerant tubing joint (wide tube)
Upper drain port (O.D. 32 mm)
Bottom drain port (O.D. 26 mm)
Electrical component box
Power supply outlet
Suspension bolt pitch
Flange for the flexible air outlet duct
Flange for the air intake duct
Fresh air intake port (ø150)
9
10
38
0099_U_I
Inspection access
(450 X 450)
*Field supply