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When the height of the ceiling exceeds the distance of the item Standard / 4-way in Table as below, the hot air is
difficult to reach the floor.
Therefore, it is necessary to change the setup value of the high ceiling switch or discharge direction.
The high-ceiling setting is also necessary when installing separately sold filters.
REQUIREMENT
• When using the air conditioner with 2-way / 3-way discharge system, a strong wind blows directly if the
ceiling height is lower than the standard.
Therefore, change the setting switch according to height of the ceiling.
• When using the high ceiling (1) or (3) with 4-way discharge system, the draft is apt to be felt due to drop of
the discharge temperature.
Height list of ceiling possible to be installed
Model RAV-
SM182, SM242
Discharge direction
4-way
3-way
Standard (At shipment)
9'8"(3.0)
10'8"(3.3)
High ceiling (1)
10'8"(3.3) 11'5"(3.5)
High ceiling (3)
11'8"(3.6) 12'5"(3.8)
The lighting time of the filter sign (notification of filter cleaning) on the remote controller can be changed according
to installation conditions.
When it is difficult to obtain satisfactory heating due to location place of the indoor unit or the structure of the room,
the detection temperature of heating can be raised.
Discharge direction
As shown in the figure below, air discharge directions can be selected according to the shape of the room and the
location of the indoor unit installation.
3 directions
• Use a shielding plate kit (sold separately) to change discharge directions.
Discharge directions are limited. Follow the installation manual supplied with the shielding plate kit.
17-EN
Setup of high
SM302, SM362
SM422, SM482
2-way
4-way
3-way
2-way
11'8"(3.6)
12'8"(3.9) 13'8"(4.2) 14'8"(4.5)
12'5"(3.8)
13'8"(4.2) 14'4"(4.4) 15'1"(4.6)
—
14'8"(4.5) 15'1"(4.6)
—
2 directions
Shielding plate
(sold separately)
� 9 �
4
Installation
REQUIREMENT
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. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be
sure to use buffering cloth, etc. to not damage the unit.
• To move the indoor unit, hold the hooking metals (4 positions) only.
Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).
• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than
specified.
External view
(ft:m)
ceiling
SET DATA
0000
0001
0003
Ceiling bottom
surface
3.97" (101)
5.07" (129)
Ceiling bottom
surface
Knockout for simple
fresh air take-in port
For Ø3.9" (100)
Ø 6.4" (162)
3.14" (80)
Knockout square hole
for divide duct
B
For Ø5.9" (150)
9.44" (240)
4.1"
4.1"
(105)
(105)
33.1" (840) Unit external dimension
Knockout square
hole for divide duct
16" (408)
For Ø5.9" (150)
4.1"
(105)
16.4" (416.5)
27.2" (690) ± 0.9" (20) Hanging bolt pitch
33.9" (860) to 35.8" (910) Ceiling opening dimension
37.4" (950) Panel external dimension
18.9" (480)
4.1" (105)
10.1" (256.5)
Z view
0.65" (16.5)
Ceiling bottom surface
Ceiling panel (sold separately)
Knockout square hole for divide duct
Knockout square hole for humidifier
For Ø5.9" (150)
Model
A
SM182, SM242
10.1" (256)
SM302, SM362, SM422, SM482
12.6" (319)
(Unit: in (mm))
Ceiling bottom surface
Refrigerant pipe
connecting port
7.1" (182)
Liquid Ø 3/8" (9.5)
Ø 6.4" (162)
4.6" (119)
Take-in port
1.8" (48.1)
of wires
Refrigerant pipe
connecting port
Electrical
Gas Ø 5/8" (15.9)
control box
4.1" (105)
Drain pipe
connecting
port
Outer dia. :
Ø 1.3" (32)
Ceiling
bottom
Knockout square hole
surface
for divide duct
For Ø5.9" (150)
Hanging bolt M10 or Ø3/8
(Locally procured)
(Unit : in (mm))
B
4.7" (120)
7.2" (183)
18-EN
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