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English
• In the case of the installation of a wireless remote controller,
the transmission distance of the wireless remote controller may
be shortened if the room has a fluorescent light of electronic
lighting type (i.e., an inverter or rapid-start fluorescent light).
Keep the distance between the receiver and the fluorescent
light as far as possible.
(2) Use hanging bolts to install the indoor unit. Check that the
place of installation withstands the weight of the indoor unit.
Secure the hanging bolts with proper beams if necessary.
4.
PREPARATIONS BEFORE INSTALLATION
(1) Check the positional relationship between the ceiling open-
ing hole and the hanging bolt of the unit.
• For the maintenance, inspection, and other servicing
purposes of the control box and drain pump, prepare one
of the following service spaces.
1. Inspection hatch 1 (450 × 450) for the control box and
a minimum space of 300 mm for the lower part of the
product.
(Refer to Fig. 2-2)
2. Inspection hatch 1 (450 × 450) for the control box and
inspection hatch 2 for the lower part of the product
(see axial direction view A-1).
(Refer to Fig. 2-3)
3. Inspection hatch 3 for the lower part of the product
and the lower part of the control box (see axial direc-
tion view A-2).
(Refer to Fig. 2-3)
(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 (insula-
tion material) to the inner wall of the duct and vibration insu-
lation 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 refrig-
erant piping, drain piping, power line, transmission wir-
ing, and remote controller 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
wireless 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-in 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.
(length: mm)
Ceiling
Floor surface
• The H1 dimension indicates the
height of the product.
• Determine the H2 dimension by
maintaining a downward slope of
at least 1/100 as specified in
“7. DRAIN PIPING WORK”.
Min. 20
Min. 300
Min. 450
Min. 2500
Min. 700 (service space)
(If no ceiling board is provided.)
*H1=300
*H2=Min. 620
[Required installation place]
The dimensions indicate the
minimum required space of
installation.
Fig. 2-1
700
631
(Hanging bolt pitch)
Inspection hatch 1
(450×450)
Inspection hatch
Control box
Control box
Ceiling
B
C
(Hanging bolt pitch)
Bottom of unit
Air inlet
Air outlet
Hanging bolt (× 4)
*H3=Min. 300
Fig. 2-2
Case 1
700
700
Inspection hatch
Inspection hatch 1
(450×450)
Inspection
hatch 2
Inspection hatch 3
(Same as the indoor
unit size +300 or more)
Control box
Control box
Control box
Inspection hatch
(Ceiling opening)
Ceiling
Axial direction view A-1
Axial direction view A-2
Min. D=B+300
Min. 200
B
*H3=Min. 20
20 • 25 • 32 type
550
588
850
Model
B
C
D
700
738 1000
1000 1038 1300
1400 1438 1700
40 type
50 • 63 • 80 type
100 • 125 • 140 type
(length: mm)
A
Fig. 2-3
Case 2, 3
(Same as the
indoor unit
size or more)
• Determine the H3
dimension by maintaining a
downward slope of at least
1/100 as specified in
“7. DRAIN PIPING WORK”.
Note) All the above parts are field supplied.
Installation example
Ceiling slab
Anchor
Long nut or turn-buckle
Hanging bolt
Indoor unit
01_EN_3PN06583-7N.fm Page 4 Saturday, February 28, 2009 3:02 PM
