51
U
Concealed-Duct Type (U Type)
3-22. 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. 3-91 and Table 3-4.
It is recommended that space is provided (17-23/32
×
17-23/32 in.) for checking and servicing the
electrical system.
Fig. 3-92 and Table 3-5 show the detailed
dimensions of the indoor unit.
Table 3-4
Unit: inch (mm)
Type
26
36
A (Length)
42-17/32 (1,080)
61-13/32 (1,560)
Number of duct flanges
3
4
A
B
C
D
E
F
G
H
I
J
K
35-7/16
9-21/32
UH(W)2672R
37-7/8
(7-3/32
×
5)
39-3/8
42-17/32 11-13/32 2-23/32 38-19/32 39-31/32 5-1/8
(9-21/32
×
1)
9-27/32 12 16
54-11/32
19-9/32
UH(W)3672R
56-25/32
(9-1/16
×
6)
58-9/32 61-13/32 13-3/16 12-7/32 57-15/32 58-27/32 5-1/8
(9-21/32
×
2)
9-7/16 16 18
No. of
holes
Dimension
Table 3-5
Unit: inch (mm)
Refri
g
era
n
t t
u
bi
ng
joi
n
t (liq
u
id t
u
be)
Refri
g
era
n
t t
u
bi
ng
joi
n
t (
g
a
s
t
u
be)
Upper drai
n
port (O.D. 1-1/4 i
n
.)
Bottom drai
n
port (O.D. 1-1/
3
2 i
n
.)
Sus
pe
ns
io
n
l
ug
Power
su
pply o
u
tlet (2-ø1-
3
/16 hole)
Fre
s
h air i
n
take port (ø5-29/
3
2 hole)
Fla
ng
e for the flexible air o
u
tlet d
u
ct (ø7-7/
8
hole)
T
u
be cover
Electrical compo
n
e
n
t box
Fla
ng
e for the air i
n
take d
u
ct
(Optio
n
or field
su
pply)
9
10
9
10
11
11
(
Sus
pe
ns
io
n
bolt pitch)
)
h
cti
p t
l
o
b
n
oi
s
n
e
p
s
u
S
(
M-ø1/
8
(Hole)
4-ø15/
3
2
(Hole)
(Hole)
A (O.D.)
L-ø1/4
I
1
3
/
3
2
1
3
/
3
2
2
3
/
3
1
2
3
/
5-
2
8
/
7-
7
2
3
/
5-
2
2
3
/
3
1
I
J
J
K
B
C
D
(5-29/
3
2)
1-9/16
E
E
E
F
2-15/16
2-9/16
11-7/
3
2
2-
3
/4
5-1/
8
3
1/
3
2
8
-9/
3
2
12-7/
3
2
3
1/
3
2
6-7/
8
1-
3
/
8
3
-17/
3
2
1-7/
3
2
1-7/
3
2
H (D
u
ct
sus
pe
ns
io
n
bolt pitch)
G (Ceili
ng
ope
n
i
ng
dime
ns
io
n
)
2
3
/
1
3
6
1/
5
1-
3
2
3
/
9-
7
2
3
/
7
2-
2
2
2
3
/
1
3
2
3
/
7
1-
4
2
3
/
5
1-
7
2
3
/
1
1-
3
2
3
/
1
3
6
1/
3
-
1
4/
3
-
2
6
1/
5-
6
2
3
/
1
3
6
1/
3
1-
4
2
2
3
/
3
1
2
3
/
5
1-
3
6
1/
3
1-
0
1
)
n
oi
s
n
e
mi
d
g
n
i
n
e
p
o
g
n
ili
e
C(
4/
1-
0
1
).
D.
O(
3
/4
3
/4
I
ns
pectio
n
acce
ss
(17-2
3
/
3
2
×
17-2
3
/
3
2)
(Field
su
pply)
I
ns
pectio
n
acce
ss
pa
n
el
Ceili
ng
Indoor Unit
Inspection
access
17-23/32
×
17-23/32
Air outlet duct flange
min.
9-27/32
.
ni
m
4/
3-
5
1
min. 25-19/32
2
3/
7
2-
2
2
A (Suspension bolt pitch)
Electrical
component box
Refrigerant
tubing
Unit: inch
.ni
m
23/
72
-9
Fig. 3-91
Fig. 3-92
L M
Unit: inch
Type
07-115 SSHP_II 5/7/07 4:00 PM Page 51