2
5
(2) Mount the canvas ducts to the air outlet and inlet so that
the vibration of the air conditioner will not be transmitted to the
duct or ceiling. Apply a sound absorbing material (insulation
material) to the inner wall of the duct and vibration insulation
rubber to the hanging bolts (refer to 8. DUCT WORK).
(3) Open installation holes (if the ceiling already exists).
•
Open the installation holes on the ceiling. Lay the refrigerant pip-
ing, drain piping, power line, transmission wiring, and remote
con-
roller wiring for the piping and wiring connection port of the
unit.
In the case of the installation of a wireless remote
con-
troller, refer to the installation manual provided with
the
wir
eless remote controller.
Refer to
6. REFRIGERANT PIPING WORK
,
7. DRAIN
PIPING WORK
, and
10. WIRING EXAMPLE AND HOW
TO SET THE REMOTE CONTROLLER
.
•
The ceiling framework may need reinforcement in order
to keep the ceiling horizontal and prevent the vibration of
the ceiling after the installation holes are opened. For
details, consult your construction or interior contractor.
(4) Install the hanging bolts. Make sure that the hanging bolts
are M10 in size.
•
Use hole
i
n anchors if the hanging bolts already exist;
otherwise use embedded inserts and embedded founda-
tion bolts so that they will withstand the weight of the unit.
Adjust the distance to the ceiling surface in advance.
〈
It may be easier to install accessories (sold separately)
before installing the indoor unit. Refer to the installation
manuals provided to the accessories as well.
〉
Be sure to use the accessories and specified parts for
installation work.
(1) Temporally install the indoor unit.
•
Connect the hanging brackets to the hanging bolts. Be sure to
use and tighten the nut and washer (procured in the field) for each
hanging bracket from both upper and lower sides of the hanging
bracket.
(Refer to Fig. 3)
At that time, the fall of the washer for
the hanging bracket can be prevented if the washing fixing plate
(8) is used.
•
During the installation work, perform the curing of the air
outlet and protect the resin drain pan of the indoor unit
from the intrusion of foreign substances, such as welding
spatters.
Otherwise, water leakage may occur as a result of damage,
such as hole damage, to the resin drain pan.
(2) Make adjustments so that the unit will be in the right position.
(3) Check the level of the unit.
(4) Remove the washer fixing plates for the falling prevention of
the washers for the hanging brackets, tighten the nuts on the upper
side, and securely fix the unit.
B
C
D
700 738 1000
1000 1038 1300
Model
40 • 50 type
63 • 80 • 100 type
(length: mm)
• Determine the H3
dimension by maintaining a
downward slope of at least
1/100 as specified in
“7. DRAIN PIPING WORK”.
Indoor unit
Note) All the above parts are field supplied.
Installation example
Ceiling slab
Anchor
Long nut or turn-buckle
Hanging bolt
Hanging bracket
Level
Bottom of product
Vinyl tube
•
Use the level and check that the unit is installed
horizontally.(4-directions)
•
In the case of using a vinyl tube in place of the level, put the
both edges of the vinyl tube in close contact with the bottom
of the product to make levelness adjustment.
If the unit is installed at a slant with the drain pipe side set
high, in particular, the float switch will not operate normally
and water leakage may result.
As for the refrigerant piping of the outdoor unit, refer to the
installation manual provided to the outdoor unit
.
Perform heat insulation work on both gas piping and liquid
piping, or otherwise water leakage may result.
Use the insulation material that withstands a temperature
of 120°C.
Adjust the height of the unit.(3)
Make sure the unit is
5. INDO
(2)
OR UNIT INSTALLATI
ON
!
CAUTION
!
CAUTION
6. REFRIGERANT PIPING WORK
•
•
Washer
(Procured in the field)
Part to be procured in the field
Washer fixing plate (
8
)
(accessory)
Insert
Tighten from above and below
(Double nut)
[Fixing hanging brackets]
[Fixing method of washers]
Fig. 3
Nut on the upper side
