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U
Fig. 3-61
Fig. 3-62
Indoor unit
Inspection
access
17-23/32
17-23/32
Air outlet duct flange
min.
9-27/32
min.
15-3/4
min. 25-19/32
22-27/32
A (Suspension bolt pitch)
Electrical
component box
Refrigerant
tubing
min.
9-27/32
■ Concealed Duct Type (U Type)
3-14. 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. 3-61 and Table 3-3.
● It is recommended that space is provided (17-23/32 × 17-23/32 in.)
for checking and servicing the electrical system.
● Fig. 3-62 and Table 3-4 show the detailed dimensions of the indoor
unit.
Table 3-3
Type
A (Length)
Number of duct flanges
36
61-13/32 (1,560)
4
24
42-17/32 (1,080)
3
7, 12, 18
30-23/32 (780)
2
Dimension
Type
7, 12, 18
ABCDEFGHI JK
LM
26-1/16
23-5/8
(7-7/8 × 3)
27-9/16 30-23/32 11-13/32 10-5/16 26-25/3228-5/327-3/32–13-3/88 12
24
37-7/8
35-7/16
(7-3/32 × 5)
39-3/8 42-17/32 11-13/32 10-23/32 38-19/32 39-31/32 5-1/8
9-21/32
(9-21/32 × 1)
9-27/3212 16
36
56-25/32
54-11/32
(9-1/16 × 6)
58-9/32 61-13/3213-3/16 12-7/32 57-15/3258-27/32 5-1/8
19-9/32
(9-21/32 × 2)
9-7/16 16 18
No. of holes
Refrigerant tubing joint (liquid tube)
Refrigerant tubing joint (gas tube)
Upper drain port (O.D. 1-1/4 in.)
Bottom drain port (O.D. 1-1/32 in.)
Suspension lug
Power supply outlet (2-ø1-3/16 hole)
Fresh air intake port (ø5-29/32 hole)
Flange for the flexible air outlet duct (ø7-7/8 hole)
Tube cover
Electrical component box
Flange for the air intake duct
(Option or field supply)
9
10
11
(Suspension bolt pitch)
(Suspension bolt pitch)
18-ø1/8
(Hole)
4-ø15/32
(Hole)
(Hole)
A (O.D.)
L-ø1/4
I
13/32
13/32
13/32
2-5/322-5/32
7-7/8
13/32
IJJK
B
C
D
(5-29/32)
1-9/16
EEEF
2-9/16
11-7/32
2-3/4
5-1/8
31/32 8-9/32
12-7/32
31/32
6-7/8
1-3/8
3-17/32
1-7/32 1-7/32
H (Duct suspension bolt pitch)
G (Ceiling opening dimension)
31/32
3-15/16
7-9/32
22-27/3231/32
4-17/32
7-15/32
3-11/32
31/32
2-3/4
1-3/16
6-5/16
24-13/16 31/32
13/32
3-15/32
10-13/16
(Ceiling opening dimension)
10-1/4
(O.D.)
3/43/4
Inspection access
(17-23/32
17-23/32)
(Field supply)
Inspection access panel
Ceiling
2-15/16
Inter-unit control wiring
Unit: in.
Table 3-4
Unit: in. (mm)
Unit: in.
Unit: in.
07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 39