8
English
(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 piping, drain piping, power line,
transmission wiring, and remote controller wiring for the piping and wiring connection port of the unit.
In the case of the installation of a wireless remote controller, 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 foundation bolts so that
they will withstand the weight of the unit.
Adjust the distance to the ceiling surface in
advance.
* Determine the H3 dimension by
maintaining a downward slope
of at least 1/100 as specified in
“7. DRAIN PIPING WORK”.
0
0
7
0
0
7
Inspection hatch
Inspection hatch 1
(450×450)
Inspection hatch 2
(Same as the indoor
unit size or more)
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
(length: mm)
A
Fig. 4
Model
B
C
D
1000 1038 1300
1400 1438 1700
20
• 24 type
36 • 45 • 48 type
Case 2, 3
Note) All the above parts are field supplied.
Installation example
Ceiling slab
Anchor
Long nut or turn-buckle
Hanging bolt
Indoor unit
01_EN_3PN06583-10W.fm Page 7 Thursday, March 24, 2011 9:03 AM
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