4
Check the pitch of the suspension bolt. (340 mm
×
811 mm) (Fig. 2-7)
1. Thread washers
1
2
(supplied) and their nuts (procured locally) onto the sus-
pension bolt in advance.
* Do this in the following order (from the top): nut, insulated washer
2
, washer
without insulation
1
, two nuts.
* Position insulated washer
2
with the insulated surface pointing down, as in the
figure.
2. Lift the unit into place, aligned properly with the suspension bolt. Pass the bracket
between washers
1
and
2
, which are already in place, and secure it. Do the
same in all four places.
* Make sure the suspension bolt extends 20 mm or more from the surface of the
ceiling. Otherwise you will not be able to install the cover panel (sold separately).
3. If the long opening in the bracket and opening in the ceiling do not align, adjust
them until they do.
4. Check that the four corners are all level, using a spirit level or clear plastic tubing
with water in it.
* Make sure that any slant in the unit after installation is less than 0.5 degrees
(approx. 6 mm on the long dimension of the unit).
5. Tighten all the nuts. (Fig. 2-8)
F
G
B
B
C
*
E
*
D
C
A
11
2
Min. 20
B
11
0
11
0
A
C
D E
(mm)
(mm)
Fig. 2-7
A
Suspension bolt (3/8" or M10)
B
Ceiling surface
C
Nut (3/8" or M10)
D
Washer
2
(with insulation)
E
Washer
1
F
(Install with insulation facing down)
G
Measurement to upper face of bracket
A
Suspension bolt (3/8" or M10)
B
Clear plastic tubing
C
Underside of bracket
D
Secure front panel here
E
Make these surfaces are flush with each other (0 - 3 mm)
Fig. 2-8
D
E
F G
340
811
K
L
M
J
H
I
A
C
D
E
C
*1
B
Min. 20
Min. 30
(mm)
(mm)
Fig. 2-5
Fig. 2-6
D
Ceiling panel
E
Rafter
F
Beam
G
Roof beam
H
Use inserts rated at 100-150 kg each (procure locally)
I
Suspension bolts M10 (3/8") (procure locally)
J
Steel reinforcing rod
K
C channel
L
Channel suspension bracket
M
M10 suspension bolt
2.4. Unit suspension procedures (Fig. 2-6)
Procure 3/8" bolts or M10 bolts locally.
• Adjust the length of the bolt’s protrusion from the ceiling surface beforehand.
*1. When using an extra upper nut in suspending the unit, in some cases you may
have to add it later.
A
Suspension bolt
B
Ceiling panel
C
Nut
D
Washer (with insulation)
2
E
Washer (without insulation)
1
2. Installing the indoor unit
1
Wooden structures (Fig. 2-5)
• Use tie beams (single storied houses) or second floor beams (two story houses) as
reinforcing members.
• Wooden beams for suspending air conditioners must be sturdy and their sides
must be at least 6 cm long if the beams are separated by not more than 90 cm and
their sides must be at least 9 cm long if the beams are separated by as much as
180 cm. The size of the suspension bolts should be ø10 (3/8"). (The bolts do not
come with the unit.)
• Use channel, duct and other parts procured locally to suspend the indoor unit.
2
Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden hang-
ers, etc. to install the suspension bolts.
