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1.

Installing the mounting plate.

• The mounting plate should be installed on a wall which can support the weight of the indoor unit.
1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the boring points on the wall.
2) Secure the mounting plate to the wall with screws.

Recommended mounting plate retention spots and dimensions

Indoor Unit Installation (1)

Installation Tips

1. Removing and installing front panel.

• Removal method

Hook fingers on the panel protrusions on the left and right 
of the main body, and open until the panel stops. Slide the 
front panel sideways to disengage the rotating shaft. 
Then pull the front panel toward 
you to remove it.

• Installation method

Align the tabs of the front panel with 
the grooves, and push all the way in. 
Then close slowly. Push the center of 
the lower surface of the panel firmly to 
engage the tabs.

2. Removing and installing the front grille.

• Removal method

1) Remove front panel to 

remove the air filter.

2) Remove the front grille.

3) In front of the             mark 

of the front grille, there are 
4 upper hooks. Lightly pull 
the front grille toward you 
with one hand, and push 
down on the hooks with the 
fingers of your other hand.

<When there is no work space because the unit is close to ceiling>

Be sure to wear protection gloves.

Place both hands under the center of the 
front grille, and while pushing up, pull it 
toward you.

• Installation method

1) Install the front grille and firmly engage the upper hooks 

(4 locations).

2) Install 6 screws of the front grille.

3) Install the air filter and then mount the 

front panel.

3. How to set the different 

addresses.

When 2 indoor units are installed 
in 1 room, the 2 wireless remote 
controllers can be set for 
different addresses.

1) In the same way as when 

connecting to an HA system, 
remove the metal plate 
electrical wiring cover.

2) Cut the address jumper (JA) 

on the printed circuit board. 

3) Cut the address jumper (J4) 

in the remote controller.

CAUTION

2.

Boring a wall hole and installing wall embedded pipe.

• For walls containing metal frame or metal board, be sure to use a wall embedded pipe 

and wall cover in the feed-through hole to prevent possible heat, electrical shock, or fire.

• Be sure to caulk the gaps around the pipes with caulking material to prevent water leakage.
1) Bore a feed-through hole of 3-1/8 inch (80mm) in the wall so it has a down slope toward the outside.
2) Insert a wall pipe into the hole.
3) Insert a wall cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap with putty.

φ

3-1/8

(

φ

80)

7-1/2 (190)

2-1/16 (53)

5-1/4
(134)

5-3/16

(131)

1-3/4 (45)

1-3/4 (45)

13-3/8

(340)

2-9/16

(65)

φ

3-1/8

(

φ

80)

6-5/16

(161)

7-3/16

(183)

3-1/2

(89)

47-1/4 (1200)

1-7/8

(47)

21-13/16 (554)

(length: inch (mm))

Use tape 
measure 
as shown.
Position 
the end of 
a tape 
measure 
at 

∇.

Gas pipe end 

Liquid pipe end

Keep here the piece cut out from the unit for piping

Through-the-wall hole 

φ

3-1/8 inch (

φ

80mm)

Drain 
hose 
position

Removed pipe 
port cover 

A

Mounting 
plate

* The removed pipe port 

cover can be kept in the 
mounting plate pocket.

Recommended mounting plate 
retention spots (9 spots in all)

(Bolt size: 3/8” (M10))

(Bolt size: 3/8” (M10))

(Bolt size: 3/8” (M10))

Place a leveler on raised tab.

¡¡¡

 mark area 

(4 locations)

Upper hook

Lightly pull the front grille 
toward you with one 
hand, and push down on 
the hooks with the fingers 
of your other hand.
(4 locations)

Push
down.

Upper hook

Upper hook

1) Push up.

2) Pull toward you.

Push the 
rotating shaft 
of the front 
panel into the 
groove.

ADDRESS

JA

ADDRESS

JA

EXIST

1

CUT

2

ADDRESS

J4

EXIST
 CUT

1
2

J4

Inside

Outside

Caulking

Wall embedded 
pipe 
(Field supply)

Wall hole cover
(Field supply)

Wall embedded 
pipe 
(Field supply)

φ

3-1/8”

(

φ

80mm)

Summary of Contents for M08B128

Page 1: ...stabs or other injuries Tear apart and throw away plastic packaging bags so that children will not play with them Children playing with plastic bags face the danger of death by suffocation Do not ins...

Page 2: ...ping is removed causing abnormally high pressure which could lead to equipment damage or and personal injury When installing or relocating the system be sure to keep the refrigerant circuit free from...

Page 3: ...w to remove the indoor unit Push up the marked area at the lower part of the front grille to release the claws If it is difficult to release remove the front grille Opening service lid Service lid is...

Page 4: ...ddresses 1 In the same way as when connecting to an HA system remove the metal plate electrical wiring cover 2 Cut the address jumper JA on the printed circuit board 3 Cut the address jumper J4 in the...

Page 5: ...nter unit wiring Refer to 4 Wiring 6 Press the bottom frame of the indoor unit with both hands to set it on the mounting plate hooks Make sure that the wires do not catch on the edge of the indoor uni...

Page 6: ...he conduit mounting plate 2 Insert the wires including the ground wire into J tube 3 Strip wire ends 9 16 inch 15mm 4 Match wire colors with terminal numbers on indoor and outdoor unit s terminal bloc...

Page 7: ...Flare the pipe 5 Check that the flaring is properly made 1 Do not use mineral oil on flared part 2 Prevent mineral oil from getting into the system as this would reduce the lifetime of the units 3 Nev...

Page 8: ...eration mode cooling and heating 2 Press the ON OFF button to turn on the system 3 Press the both of TEMP button and the MODE button at the same time 4 Press the MODE button twice will be displayed an...

Page 9: ...are thermally insulated Fall vibration noise Water leakage Water leakage System is properly ground to earth Electrical leakage Indoor unit properly receives remote controller commands Inoperative Indo...

Page 10: ...3P228446 2B M08B128...

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