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D
■ Concealed Duct High-Static Pressure Type (D Type)
3-19. 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. 3-77.
● It is recommended that space be provided (23-5/8" ×
23-5/8") for checking and servicing the electrical system.
● Fig. 3-78 and Table 3-3 show the detailed dimensions of
the indoor unit.
Fig. 3-78
Air suction side
Refrigerant tubing
Min. 23-5/8
Space for
service
Min. 5-1/8
Electrical
component
box
(23-5/8" × 23-5/8")
Min. 22-53/64
Suspension
bolt pitch
Suspension
bolt pitch
38-37/64
37
5-1/8
11-27/64
19-11/16
Min. 23-5/8
(Space for service)
Drain pan
Ceiling face
Inspection access
A
12-13/64
11-13/16
B
1-31/32
2-5/32
1
19-11/16 2-3/4
1-3/8 1-3/8
37
19/32
3-5/32 11-27/64
(Suspension bolt pitch)
5-1/8
2-23/64
3-35/64
25/32
1-37/64
2-5/32
7 × 3-15/16 = 27-9/16
4 × 3-15/16
= 15-3/4
19-11/16
38-37/64
(Suspension bolt pitch)
4-ø20 hole for
suspension bolt
Drain pan
31-7/32
37
1-57/64
1-13/16
16 - ø1/8
Electrical component box
22 - ø1/8
(Hole for full
circumference)
(Hole for full
circumference)
3-15/16
39-49/64
19/32
25/6425/64
24-13/32
2-5/322-5/32
3-15/16
3-15/16
Refrigerant liquid line (ø3/8 or ø1/4)
Refrigerant gas line (ø3/4 or ø5/8)
Power supply outlet
Drain connection (25A, O.D. 1-1/4")
Duct connection for suction
Duct connection for discharge
1-11/32
3-55/64
3-15/16
Inter-unit control wiring
Fig. 3-77
Unit: in.
48
36
A
16-17/32
17-23/32
B
15-35/64
16-47/64
C
2-43/64
3-55/64
Length
Type
Table 3-5
Unit: in.
Unit: in.
07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 43