31
A
1-Way Air Discharge Semi-Concealed Type (A Type)
3-8. Suspending the Indoor Unit
(1) Follow the diagrams to make the holes in the ceiling.
(Figs. 3-29 and 3-30)
(2) Depending on the ceiling type:
Insert suspension bolts as shown in Fig. 3-31
or
Use existing ceiling supports or construct a suitable
support as shown in Fig. 3-32.
Make sure that the length of suspension bolts from the
bottom of the unit is 19/32 in. or more. (Fig. 3-33)
Fig. 3-29
Hole-i
n
-a
n
chor
Hole-i
n
-pl
ug
Co
n
crete
I
ns
ert
Sus
pe
ns
io
n
bolt
(M10 or
3
/
8
")
WARNING
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.
(3) Calculate the suspension bolt pitch using the full-
size installation diagram (printed on the package).
The relationship between the positions of the
suspension lugs, unit, and ceiling panel is as
shown in Fig. 3-30.
(4) Cut the ceiling material, if necessary.
(Figs. 3-29 and 3-30)
If the system requires fresh air to be drawn into the unit,
cut and remove the insulation (both externally and
internally) at the location shown as
in Figs. 3-34 and
3-35.
A
When making the cuts to the insulation, be careful
not to damage the drain pan.
CAUTION
Fig. 3-31
3
-47/64
19/
3
2
19/
3
2
2
8
-47/64 (Ceili
ng
ope
n
i
ng
dime
ns
io
n
)
2
3
-15/64 (Ceili
ng
ope
n
i
ng
dime
ns
io
n
)
29-59/64 (Pa
n
el o
u
ter dime
ns
io
ns
)
24-1
3
/
3
2 (O
u
tli
n
e dime
ns
io
n
of pa
n
el)
25-6
3
/64 (
Sus
pe
ns
io
n
bolt pitch)
1-27/64
(1-27/64)
2
3
-5/
8
22-
3
/64
15-
3
/4 (
Sus
pe
ns
io
n
bolt pitch)
Unit: in.
Flared refri
g
era
n
t
co
nn
ectio
n
o
u
tlet
(liq
u
id t
u
be)
Flared refri
g
era
n
t
co
nn
ectio
n
o
u
tlet
(
g
a
s
t
u
be)
I
n
ter-
un
it
Co
n
trol Wiri
ng
Power
su
pply o
u
tlet
Drai
n
pipe co
nn
ectio
n
(Be
su
re to co
nn
ect the
su
pplied flexible ho
s
e.)
22-
3
/64
10-1/
3
2
5-19/64
1-49/64
9-29/64
3
-
3
/16
2-
3
1/64
2-9/16
1-49/64
1-
3
/16
12-19/64
1-19/64
Fig. 3-30
Unit: in.
07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 31
