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Concealed Duct Type

Installation Manual

Concealed Duct Type

Installation Manual

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Installation

CAUTION

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

• Do not put a heavy article on the indoor unit or let a person get on it. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, use buffering

cloth or other material to not damage the unit.

• To move the indoor unit, hold the hooking brackets (4 positions) only.

Do not apply force to the other parts (such as refrigerant pipe, drain pan, foamed parts, or resin parts).

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.
• To install vibration isolation material to hanging bolts, confirm that it does not increase the unit vibration.

External Dimensions

(Unit: mm)

▼

Dimension

SM56 type

700

766

690

750

780

12.7

6.4

252

280

SM80 type

1000

1066

990

1050

1080

15.9

9.5

252

580

290

SM100, SM140 type

1350

1416

1340

1400

1430

15.9

9.5

252

930

310

110

129

44
49

J = M x K

60~260

196

393

498

638

131

243

174

320

Knock-out hole Ø125

(Air take-in port)

Discharge port flange

N-Ø200

Hanging bolt pitch B

Main unit dimension A

Hanging bolt

4-M10 screw

(Arranged locally)

Refrigerant pipe connecting port

(Gas side ØF)

Main unit dimension 800

Hanging bolt pitch 700

Drain pipe

connecting port

for vinyl chloride

pipe (Inner dia.

32, VP. 25)

Suction port

flange (Procured

locally)

Suction port

panel

(Procured

locally)

Ø26 Power supply,

remote controller

wire take-out port

Ceiling open size 470

Panel external dimension 500

Refrigerant

pipe

connecting

port (Liquid

side ØG)

Ceiling open size D

Panel external dimension E

Suction port canvas

(Procured locally)

6-Ø4

Tapping screw

undersized hole Ø160

Panel C.L

410

Installation of hanging bolt

• Consider the piping/wiring after the unit is hung to

determine the location of the indoor unit installation
and orientation.

• After the location of the indoor unit installation has

been determined, install hanging bolts.

• For the dimensions of the hanging bolt pitches, refer

to the external view.

• When a ceiling already exists, lay the drain pipe,

refrigerant pipe, control wires, and remote controller
wires to their connection locations before hanging
the indoor unit.

Procure hanging bolts washer and nuts for installing
the indoor unit (these are not supplied).

Installation of hanging bolt

Use M10 hanging bolts (4 pcs, to be local procure).

Matching to the existing structure, set pitch according
to size in the unit external view as shown below.

Installation of indoor unit

Treatment of ceiling

The ceiling differs according to structure of building.

For details, consult your constructor or interior finish
contractor.

In the process after the ceiling board has been
removed, it is important to reinforce ceiling foundation
(frame) and to keep horizontal level of installed ceiling
correctly in order to prevent vibration of ceiling board.

• Attach the nuts and the M10 flat washers to the

hanging bolt.

• Put washers at up and down of the hanging bracket

of the indoor unit to hang down the indoor unit.

• Check that four sides are horizontal with a level

gauge. (Horizontal degree: Within 5mm)

REQUIREMENT

• Hang the unit in a horizontal position.

When unit is hanged to slant, it may cause overflow of
drainage.

• Install the unit within the dimension according to the

figure below.

• Use level guage to confirm whether the unit is hang