General AUG36A, AUG36ALC3W, AOG36APA3L, AUG36R, AUG36RLC3W Installation Manual

SPLIT TYPE AIR CONDITIONER

Cassette Type

INSTALLATION INSTRUCTION SHEET

(PART NO. 9363217018)

For authorized service personnel only.

WARNING!

CAUTION!

1 For the air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet.

2 Connect the indoor unit and outdoor unit with the room air conditioner piping and cords available from our

standard parts. This installation instruction sheet describes the correct connections using the installation set
available from our standard parts.

3 Installation work must be performed in accordance with national wiring standards by authorized personnel only.

4 If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a

flame, it produces a toxic gas.

5 Do not turn on the power until all installation work is complete.

•

Be careful not to scratch the air conditioner when handling it.

•

After installation, explain correct operation to the customer, using the operating manual.

•

Let the customer keep this installation instruction sheet because it is used when the air conditioner is serviced or moved.

•

The maximum length of the piping is shown in Table 1. If the units are further apart than this, correct operation
cannot be guaranteed.

STANDARD PARTS

The following installation parts are furnished. Use them as required.

INDOOR UNIT ACCESSORIES

Name and Shape Q’ty Application

Coupler heat insulation

Remote
controller
cord clamp

Screw

Special nut A
(large flange)

Special nut B
(small flange)

Remote
controller

Template For ceiling hole cutting

Binder For remote controller cord

Blower cover insulation For discharged air

Hook wire For installing intake grille

OUTDOOR UNIT ACCESSORIES

Power cap

Auxiliary pipe assembly

Edge cover

Tapping screw •

Binder

Putty

Coupler heat insulation

Pipe (drain)

Flexible tube

Cap (drain)

This mark indicates procedures which, if improperly performed, might lead to the death of serious
injury of the user.

This mark indicates procedures which, if improperly performed, might possibly result in personal
harm to the user, or damage to property.

WARNING

SELECTING THE MOUNTING POSITION

Especially, the installation place is very important for the split type air
conditioner because it is very difficult to move from place to place
after the first installation.
Decide the mounting position together with the customer as follows:
The discharge direction can be selected as shown below.

Fig. 1

CAUTION

Since 2-way outlet as shown below causes performance
problems, do not set it.

INDOOR UNIT

Install the indoor unit on a place having a sufficient strength so that

(1)

it withstands against the weight of the indoor unit.
The inlet and outlet ports should not be obstructed; the air should

(2)

be able to blow all over the room.
Leave the space required to service the air conditioner (Fig. 2).

(3)

The ceiling rear height as shown in Fig. 3.

(4)

A place from where the air can be distributed evenly throughout the

(5)

room by the unit.
A place from where drainage can be extracted outdoors easily.

(6)

Install the unit where noise and vibrations are not amplified.

(7)

Fig. 2

Strong and durable ceiling

106” (2,700 mm)
or more

Obstruction

This mechanism enables the cassette body to move 35 mm down­ward and realizes installation to the space of 250 mm. No special
works and option is needed.

Fig. 3

You can select 2-way setting

(A) Standard setting (B) Slender setting

11-7/32” (285 mm)

or more

39” (1,000 mm)
or more

OUTDOOR UNIT

WARNING

Install the unit where it will not be tilted by more than 5°.

1

When installing the outdoor unit where it may

2

exposed to strong wind, fasten it securely.

Leave the spaces indicated for good air flow (Fig. 4).

(1)

Fig. 4

12” (300 mm)
or more

4” (100 mm)
or more

24” (600 mm)
or more

2

10

10

2

4

4

1

1

2

(large)

1

(small)

2

2

1

1

1

2

1

1

1

2

2

2

For indoor side pipe joint

For installing the remote
controller cord

For installing the remote
controller cord clamp

For installing the remote
controller

For installing indoor unit

For installing indoor unit

Installation to indoor unit

binding

For remote controller and
remote controller cord
binding

For power supply cord
installation

For wiring conduit
(gas side) connection
(May not be supplied,
depending on the model)

For wiring conduit installa­tion hole edge protection

For cabinet A and
cabinet D mounting (1)

•

Spare (1)

For power supply cord
binding

For sealing

For outdoor side pipe joint

For outdoor unit drain
piping work (May not be
supplied, depending on
the model.)

9-27/32” (250 mm)

0.4” (10 mm)
or more

or more

If possible, do not install the unit where it will exposed to direct sun-

(2)

light. (If necessary, install a blind that does not interfere with the air
flow.)
Do not install the unit near a source of heat, steam, of flammable gas.

(3)

During heating operation, drain water flows from the outdoor unit.

(4)

Therefore, install the outdoor unit in a place where the drain water flow
will not be obstructed. (Reverse cycle model only.)
Do not install the unit where a strong wind blows or where it is very

(5)

dusty.
Do not install the unit where people pass.

(6)

Install the outdoor unit in a place where it will be free from being dirty

(7)

or getting wet by rain as much as possible.
Install the unit when connection to the indoor unit is easy.

(8)

CONNECTION PIPE REQUIREMENT

Table 1

Diameter

Small Large

3/8”

(9.53 mm)

•

Use 0.7 mm to 1.2 mm thick pipe.

•

Use pipe with water-resistant heat insulation.

•

Use pipe that can withstand a pressure of 3,040 kPa.

3/4”

(19.05 mm)

Maximum length

164 ft (50 m) 99 ft (30 m)

Maximum height

(between indoor

and outdoor)

ELECTRICAL REQUIREMENT

•

Electric wire size and fuse/breaker capacity:

Table 2

Power

supply

cord

2

(mm

)

Connection

cord

2

(mm

)

Fuse/Breaker capacity (A)

•

Always use H07RN-F or equivalent as the cord.
Install the disconnect device with a contact gap of at least 3 mm

•

nearby the units (both indoor unit and outdoor unit).

MAX

MIN

MAX

MIN

3.5

2.5

2.5

1.0

20

INSTALLATION PROCEDURE

Install the air conditioner as follows:

1

INDOOR UNIT INSTALLATION

WARNING

Install the air conditioner in a location which can with-

•

stand a load do at least five times the weight of the
main unit and which will not amplify sound or vibration.
If the installation location is not strong enough, the
indoor unit may fall and cause injuries.

If the job is done with the panel frame only, there is a risk

•

that the unit will come loose. Please take care.

REMOVING THE INTAKE GRILLE

(1)

Push the intake grille pushbuttons (two places).

(2)

Open the intake grille.

Fig. 5

PUSH

Remove the grille hinge wire.

(3)

Fig. 6

Pull up while pressing the B section (Fig. 7).

•

Fig. 7 Part A detail view Fig. 8 Part A section view

(4)

Remove the intake grille.

OPEN

A

B

Grille hinge wire

REMOVING THE PANEL FRAME

Pull up the corner sections (A) of the panel frame as shown in

•

Fig. 9. (4 locations)

Fig. 9 Part A detail view

A

B

A

Pull up in the direction of the arrow while holding down the C

•

section of Fig. 10. (4 locations)

Fig. 10 Part B detail view

Fig. 11

Panel frame

Panel base

A

A

C

CAUTION

Always remove the panel frame after removing the intake
grille.

1. POSITION THE CEILING HOLE AND HANGING BOLTS

Fig. 12

□37” (□940 mm)

(Grille measurement)

29-17/32” (750 mm)

(Hanging bolt position)

29-17/32” (750 mm)

(Hanging bolt position)

□35-3/64” (□890 mm)

(Ceiling opening measurement)

2. HANGING PREPARATIONS

•

Firmly fasten the hanging bolts as shown in Fig. 13 or by another
method.

•

Install the hanging bolts at a place where they would be capable of
holding a weight of at least 50 kgf per bolt.

Fig. 13

Fig. 14
(A) Standard setting

2-3/8”

(60 mm)

(B) Slender setting

2-3/8”

(60 mm)

Hole-in anchor
Hole-in plug

Hanging bolt
M10

Drain pipe (I.D. 32 mm)

12” (305.5 mm)

Drain pipe (I.D. 32 mm)

12” (305.5 mm)

InsertConcrete

11-3/4” (298.5 mm)

9-25/32”

(248.5 mm)

11-3/4” (298.5 mm)

9-25/32”

(248.5 mm)

(120 mm)

(150 mm)

4-23/32”

5-29/32”

(127 mm)

5”

(120 mm)

(150 mm)

4-23/32”

5-29/32”

(92 mm)

3-5/8”

2

11-7/32” (285 mm)

9-27/32” (250 mm)

3. BODY INSTALLATION

[The ceiling rear height is 11-7/32” (285 mm) or more.] [Standard setting]

[The ceiling rear height is 9-27/32” (250 mm) or more.] [Slender setting]

(1)

Install special nut A, then special nut B onto the hanging bolt (Fig. 15).

(2)

Raise the body and mount its hooks onto the hanging bolt bet­ween the special nuts (Fig. 15).

(3)

Turn special nut B to adjust the height of the body (Fig. 15).

(4)

Leveling
Using a level, or vinyl hose filled with water, fine adjust so that the
body is level.

WARNING

Perform final tightening by tightening the double nut firmly.

Fig. 15

Special nut B

Hanging bolt

Fig. 16

Allowable space between

*

the unit and the ceiling
5 mm or less

Special nut A

Hook

30 mm

or more

After installing the body,
tighten the nuts.

Ceiling

* Must fit tightly against

ceiling without any gap.

Vinyl hose

INSTALLING THE PANEL FRAME

Fig. 17

Panel base

*90° Turn

Panel frame

* With slender setting, turn the panel frame 90° as shown in the

diagram above.

Grille setting method has been changed at the marked posi­tions on the panel frame and panel base.

Fig. 18

(A) Standard setting (B) Slender setting

Mark

Fig. 19

(Example)

* Appearance of slender setting

Panel frame

No mark

INSTALLING DRAIN PIPE

CAUTION

Install the drain pipe in accordance with the instructions
in this installation instruction sheet and keep the area
warm enough to prevent condensation. Problems with
the piping may lead to water leaks.

NOTE: Install the drain pipe.

•

Install the drain pipe with downward gradient (1/50 to 1/100) and so
there are no rises or traps in the pipe.

•

Use general hard polyvinyl chloride pipe (VP25) [outside diameter
1-1/4” (32 mm)] and connect it with adhesive (polyvinyl chloride) so
that there is no leakage.

•

When the pipe is long, install supporters.

•

Do not perform air bleeding.

•

Always heat insulate the indoor side of the drain pipe.

•

When desiring a high drain pipe height, raise it up to 31” (800 mm) or
less from the ceiling within a range of 6” (150 mm) from the body. A
rise dimension over this range will cause leakage.

Fig. 20

Air bleeding

Rise

Trap

6” (150 mm) or less

Supporter

Max 31”

5 to 6.5 ft (1.5 to 2 m)

(800 mm)

3

OUTDOOR UNIT INSTALLATION

1. OUTDOOR UNIT PROCESSING

(1)

When the outdoor unit will be exposed to strong wind, fasten it with
bolts or wire at the four places indicated by the arrows (Fig. 21).

(2)

Since the drain water flows out of the outdoor unit during heating
operation, install the drain pipe and connect it to an commercial
16 mm hose. (When heating when the outdoor temperature is 0 °C
or less, construct so that the drain water drained from the outdoor
unit will not freeze in the drain pipe.)

(3)

When installing the drain pipe, plug all the holes other than the
drain pipe mounting hole in the bottom of the outdoor unit with put­ty so there is no water leakage (Fig. 21).

Fig. 21

(4)

Always use a drain pipe at two places.

2. OUTDOOR UNIT CONNECTION CORD AND PIPE
CONNECTION PREPARATIONS

Piping and connection cord mounting direction (4-way mounting

(1)

possible).

Fig. 22

(2) Remove outdoor unit cabinet A and cabinet D.

Fig. 23

(3)

Open the piping and connection cord knockout holes of the desired
direction with nippers, etc. After opening the knockout holes, install the
accessory edge cover and power cap to protect the opened places.

Fig. 24

(4)

Connect the piping and power supply cord from the mounting
holes.

Fig. 25

(Example)

4

CONNECTING THE PIPING

1. FLARE PROCESSING

(1)

Cut the connection pipe with pipe cutters so that the pipe is not
deformed.

(2)

Holding the pipe downward so that cuttings cannot enter the pipe,
remove the burrs.

(3)

Remove the flare nut from the indoor unit pipe and outdoor unit
and assemble as shown in (Table 3) and insert the flare nut onto
the pipe, and flare with a flaring tool.

(4)

Check if the flared part “L” (Fig. 26) is spread uniformly and that
there are no cracks.

After removing the screws, remove

*

cabinet A by pushing it down.

When pipe bending work is

*

difficult inside the outdoor
unit, use the accessory
auxiliary pipe assembly.

Table 3

Flare nut

L dimension
Small pipe (9.53 mm dia.)

1.8 to 2.0 mm
Large pipe (19.05 mm dia.)

2.6 to 3.0 mm

Small pipe

Large pipe

Fig. 26

Pipe

Small (width across flats 22 mm)

Large (width across flats 36 mm)

2. BENDING PIPES

The pipes are snapped by your hands. Be careful not to collapse them.

Fig. 27

Do not bend the pipes in an angle more than 90°.
When pipes are repeatedly bent or stretched, the material will harden,
making it difficult to bend or stretch them any more. Do not bend or
stretch the pipes more than three times.

When bending the pipe, do not bend
it as is. The pipe will be collapsed. In
this case, cut the heat insulating pipe
with a sharp cutter as shown in Fig.
28, and bend it after exposing the
pipe. After bending the pipe as you
want, be sure to put the heat insulat­ing pipe back on the pipe, and secure
it with tape.

Fig. 28

CAUTION

To prevent breaking of the pipe, avoid sharp bends.

1

Bend the pipe with a radius of curvature of 150 mm or
over.

If the pipe is bent repeatedly at the same place, it will

2

break.

3. CONNECTION PIPES

(1) Indoor unit side

Fig. 29

Indoor unit

Large pipe

Small pipe

CAUTION

1

Be sure to apply the pipe against the port on the
indoor unit correctly. If the centering is improper, the
flare nut cannot be tightened smoothly. If the flare nut
is forced to turn, the threads will be damaged.

2

Do not remove the flare nut from the indoor unit pipe
until immediately before connecting the connection
pipe.

When the flare nut is tightened properly by your hand, hold the body
side coupling with a separate spanner, then tighten with a torque
wrench (Fig. 30).

Fig. 30

CAUTION

Hold the torque wrench at its grip, keeping it in the right
angle with the pipe as shown in Fig. 30, in order to tighten
the flare nut correctly.

Table 4: Flare nut tightening torque

Pipe

Small pipe

Large pipe

310 to 350 kgf

800 to 1,000 kgf

Tightening torque

•

cm (30.4 to 34.3 N

•

cm (78.4 to 98 N

•

m)

•

m)

CAUTION

Be sure to connect the large pipe after connecting the small
pipe completely.

(2) Outdoor unit side

1)

Tighten the flare nut of the connection pipe at the outdoor unit
valve connector. The tightening method is the same as that as
at the indoor side.

2)

Seal with the accessory putty so that water does not enter at
the top of the pipe insulation installed to the connection pipe
(large pipe and small pipe).

Fig. 31

Valve A
(small)

Putty

(Small pipe)

(Large pipe)

Valve B
(large)

Flare nut

Connection pipe

- Continued on back -

5 10 12

VACUUM PROCESS

Fig. 34

1. VACUUM

Vacuum inside the indoor unit and the piping to a pressure of

(1)

1.5 mmHg abs or less from the charging valve with a vacuum pump.
After vacuuming inside the indoor unit and the piping, remove the

(2)

cap of the two valves.
Open the handle of the two valves from the closed state (Table 6).

(3)

Tighten the cap of the two valves to the specified torque.

(4)

Table 5

Tightening torque

Large valve Small valve

Handle

Cap

cm (1.47 N

150 to 200 kgf

•

•

m) or less

cm (14.7 to 19.6 N

•

m)

15 kgf

•

Table 6

Open valve state Closed valve state

HOW TO FIXED CONNECTION CORD AND POWER
SUPPLY CORD AT THE CORD CLAMP

After passing the connection cord and power supply cord
through the insulation tube, fasten it with the cord clamp.

Fig. 35

Insulation tube

Insulation tube

Cord clamp

Fig. 32

Valve A

(Small)

* If the handle is not fully open, performance will
drop and an abnormal sound will be generated.

Gauge mainfold

Valve B

(Large)

Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.

Vacuum

Small pipe

Handle

pump

Large pipe

cap

Service hose

1. INDOOR UNIT SIDE

WARNING

1

Before starting work, check that power is not being
supplied to the indoor unit.

2

Match the terminal board numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric parts.

3

Charging
valve

Connect the connection cord firmly to the terminal
board. Imperfect installation may cause a fire.

4

Always fasten the outside covering of the connection
cord with the cord clamp. (If the insulator is chafed,

2. ADDITIONAL CHARGE

Refrigerant suitable for a piping length 20 m for other model is
charged in the outdoor unit at the factory.
When the piping is longer than 20 m, additional charging is necessary.
For the additional amount, see the table below.

Table 7

Pipe length

Model type

36,000 BTU
45,000 BTU

class

54,000 BTU

class

66 ft

(20 m)

None

None

99 ft

(30 m)

14.1 oz
(400 g)

17.6 oz
(500 g)

132 ft

(40 m)

28.2 oz
(800 g)

35.2 oz

(1000 g)

164 ft

(50 m)

42.3 oz

(1200 g)

52.8 oz

(1500 g)

oz/ft

(g/m)

1.41 oz/3.3 ft
(40 g/m)

1.76 oz/3.3 ft
(50 g/m)

electric leakage may occur.)

5

Always connect the ground wire.

(1)

Remove the cotrol box cover and cover (wire) B and install the
connection cord.

Fig. 36

Cover (wire) B

Control box cover

CAUTION

When charging the refrigerant, always use a measur-

1

ing cylinder.

Add refrigerant from the charging valve after the com-

2

pletion of the work.

(2)

After wiring is complete, clamp the remote controller cord and
connection cord with the cord clamp.

(3)

Install the control box cover and cover (wire) B.

Fig. 37

6

INSTALLING THE COUPLER

HEAT INSULATION

After checking for gas leaks, insulate by wrapping insulation around
the two parts (large and small) of the indoor unit coupling, using the
coupler heat insulation.
After installing the coupler heat insulation, wrap both ends with vinyl
tape so that there is no gap.

Fig. 33

CAUTION

Must fit tightly against body without any gap.

7

ELECTRICAL WIRING

HOW TO CONNECT WIRING TO THE TERMINALS

A. For solid core wiring (or F-cable)

(1)

Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to about 15/16” (25 mm) of expose
the solid wire.

(2)

Using a screwdriver, remove the terminal screw(s) on the
terminal board.

(3)

Using pliers, bend the solid wire to form a loop suitable for
the terminal screw.

(4)

Shape the loop wire properly, place it on the terminal
board and tighten securely with the terminal screw using a
screwdriver.

B. For strand wiring

(1)

Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to about 3/8” (10 mm) of expose
the strand wiring.

(2)

Using a screwdriver, remove the terminal screw(s) on the
terminal board.

(3)

Using a round terminal fastener or pliers, securely clamp a
round terminal to each stripped wire end.

(4)

Position the round terminal wire, and replace and tighten
the terminal screw using a screwdriver.

Connection cord
(To the outdoor unit)

Fig. 38

Connection
cord

OUTDOOR
UNIT

Ceiling height setting

Set the DIP switch for the ceiling height according to the table
below.

Ceiling height

(m)

2.5 ~ 3.0

3.0 ~ 3.5

More than 3.5

Less than 2.5

Fig. 39

Dip switch
(SW4)

If the setting for a low ceiling is selected, the capaci-

1

ty of the air conditioner decreases slightly.

Do not set any switches other than those specified

2

in this sheet or the remote controller installation
instruction sheet. The air conditioner may not oper­ate correctly if any switches other than those speci­fied are changed.

High ceiling 1

High ceiling 2

Cord clamp

Terminal board
(Indoor unit)

Table 8

Normal

Low ceiling

Indoor unit
PC board

CAUTION

Remote controller cord

Black

White

Terminal board

Red

Remote
controller

DIP-SW4

123

SW 1

123

O

OFF

ON

OFF

ON

F

F

—

—

—

—

Indoor unit PC board

SW 4

123

F

O

OFF

OFF

ON

ON

F

2. OUTDOOR UNIT SIDE

WARNING

1

Before starting work, check that power is not being
supplied to the outdoor unit.

2

Match the terminal board numbers and connection
cord colors with those of the indoor unit side.
Erroneous wiring may cause burning of the electric parts.

3

Connect the connection cords and the power supply
cord firmly to the terminal board. Imperfect installa­tion may cause a fire.

4

Always fasten the outside covering of the connection
cord and the power supply cord with cord clamps. (If
the insulator is chafed, electric leakage may occur.)

5

Always connect the ground wire.

(1)

Remove outdoor unit cabinet A and connect the power supply
cord and the outdoor unit connection cord wired at the indoor unit.

(2)

Fasten the power supply cord and connection cord with cable
clip and binders as shown in (Fig. 42).

Fig. 40

Electric box

Terminal board

Power supply
cord

Cord clamp

Power supply cord

Fig. 41

Remote controller

Black

White

Red

3
2
1

Ground

Connection cord
(indoor unit and outdoor
unit connection cord)

Power supply

Power
line

R
S
T

N

3

2

(N)

1

Control line

Indoor unit
side terminal

Fig. 42

Cable clip

Coupler holder

Binder

Compressor

8

GRILLE INSTALLATION

BLOWER COVER INSULATION

Install the blower cover insulation only when the outlet direction is not
specified.
Two blower cover insulations are packed with the indoor unit.
Install the blower cover insulation at the diffuser position shown in
Fig. 43. At this time, use the piping position as the criteria.

Fig. 43

2 direction example

A

(Piping direction)

INSTALLING THE INTAKE GRILLE

Mount the grille hinge wire to the hook shaft as shown in

(1)

Fig. 44.

Fig. 44

Power supply cord and connection cord
(indoor unit and outdoor unit
connection cord)

Outdoor unit

4” (100 mm) or less

Cabinet D

A

Blower cover
insulation

A

3

2

(N)

1

EARTH

Outdoor unit
side terminal

A-A Section view

Panel
base

Drain
pan

9

•

Latch the grille hinge wire to the hook shaft, and fasten.

Fig. 45 Part A detail view Fig. 46 Part A section view

Hook shaft

Grille hinge
wire

(2)

Install the hook wire.

Pass the hook wire through the panel base from the rear

•

side as shown in Fig. 47, and fasten to the reinforced
metal fitting of the intake grille using a screw.

Fig. 47

Hook wire

RFM (grille)

Fig. 48 Section view

Hook wire

Screw

(3) Loosen the screw, put the loop of the hook wire over it,

and tighten the screw again.

CAUTION

Install the intake grille hook wire to the grille assem­bly. If it falls, it may cause injuries.

(4)

Bring up the intake grille by pushing it up at an angle as
shown in Figs. 49, 50, and fasten.

Fig. 49

Fig. 50

POWER

WARNING

The rated voltage of this product is 380-415 V 3ø 50 Hz.

1

Before turning on verify that the voltage is within the

2

342 to 457 V range.

Always use a special branch circuit and install a special

3

receptacle to supply power to the air conditioner.

Use a special branch circuit breaker and receptacle

4

matched to the capacity of the air conditioner.
(Install in accordance with standard.)

Perform wiring work in accordance with standards so

5

that the air conditioner can be operated safely and
positively.

Install a leakage special branch circuit breaker in

6

accordance with the related laws and regulations
and electric company standards.

CAUTION

When the voltage is low and the air conditioner is difficult
to start, contact the power company the voltage raised.

11

REMOTE CONTROLLER

INSTALLATION

Insert the end of a flat blade screwdriver at the arrow parts of the

•

groove at the side of the remote controller case and remove the
remote controller case top by turning the screwdriver.
Disconnect the remote controller cord from the remote controller

•

terminal board.

Fig. 51

CLOCK

21

SET TIME TEMP./DAY FAN

TEMP

ZONE

SET

°C

AUTO

HIGH

CONTROL

ENERGY SAVE

DAY OFF

COOL

DEFROST

MASTER

CONTROL

START/STOP

NON STOP

TIMER

MODE

CLOCK ADJUST

When remote controller exposed

(1)

1)

Make a notch in the thin part ( part of Fig. 51) at the rem­ote controller case top and bottom with nippers, file, etc.

2)

Connect the remote controller cord to the remote controller
terminal board specified in (Fig. 52).

3)

Clamp the remote controller cord sheath with the binder
(small) as shown in Fig. 52.

4)

Cut off the excess binder.

5)

Clamp the remote controller cord to a wall, etc. with the rem­ote controller cord clamp furnished (Fig. 53).

Fig. 52

Remote controller cord

White

Binder (small)

Red

Black

Remote controller
terminal board

Fig. 53

Remote controller cord

Tapping screw (flush heads)

(2)

When remote controller cord embedded

1)

Embed the remote controller cord and box.

2)

Pass the remote controller cord through the hole at the remote

Remote controller
cord clamp

controller case bottom and install the cord to the box (Fig. 54).

3)

Connect the remote controller cord to the remote controller
terminal board specified in (Fig. 52).

Fig. 54 [Example]

Remote controller
case top

Remote
controller
cord

Remote controller case bottom

After wiring work is complete, return the remote controller case

•

top to its original state.

CAUTION

Do not bundle the remote controller cord, or wire

1

the remote controller cord in parallel, with the
indoor unit connection wire (to the outdoor unit)
and the power supply cord. It may cause erroneous
operation.

When installing the remote controller and cord near

2

a source of electromagnetic waves, separate the rem­ote controller from the source of the electromagnet­ic waves and use shielded cord.

Do not touch the remote controller PC board and PC

3

board parts directly with your hands.

TEST RUNNING

1. REMOTE CONTROLLER

Supply power to the crankcase heater 12 hours before the start

•

of operation in the winter.
For test running, when the remote controller FAN CONTROL but-

•

ton and MASTER CONTROL button are pressed simultaneously
for more than three seconds when the air conditioner is not run­ning, the air conditioner starts and TEST is displayed on the rem­ote controller display.
However, the SET TEMP./DAY setting button does not function,
but all other buttons, displays, and protection functions operate
(Fig. 55).

Fig. 55

CLOCK

NON STOP

21

TIMER

SET TIME TEMP./DAY FAN

MODE

CLOCK ADJUST

TEMP

ZONE

SET

°C

CONTROL

ENERGY SAVE

DAY OFF

AUTO

HIGH

COOL

DEFROST TEST

MASTER

CONTROL

START/STOP

When EE:EE blinks at the current time display, there is an error

•

inside the air conditioner. If the SET TIME button ( ) and SET
TEMP./DAY button ( ) are pressed simultaneously for more than
three seconds, the self diagnosis check will start and the error
contents will be displayed at the current time display (Fig. 56).
When the operation lamp lights, press the START/STOP button
and after operation lamp goes off, perform the same operation
(Fig. 56). Process the error contents by referring to (Table 9).

Fig. 56

CLOCK

NON STOP

21

TIMER
MODE

CLOCK ADJUST

TEMP

°C

HIGH

SET TIME TEMP./DAY FAN

ZONE

SET

CONTROL

ENERGY SAVE

DAY OFF

AUTO

COOL

DEFROST

MASTER

CONTROL

START/STOP

21

TIMER

SET TIME TEMP./DAY FAN

MODE

CLOCK ADJUST

ZONE

SET

AUTO

CONTROL

ENERGY SAVE

DAY OFF

MASTER

CONTROL

START/STOP

Stop operation.

Table 9

Error cord

Error contents

Communication error
(indoor unit remote controller)

Communication error
(indoor unit outdoor unit)

Room temperature sensor open

Room temperature sensor shorted

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor
shorted

Outdoor heat exchanger temperature sensor
open

Outdoor heat exchanger temperature sensor
shorted

Power source connection error

Float switch operated

Outdoor temperature sensor open

Outdoor temperature sensor shorted

Discharge pipe temperature sensor open

Discharge pipe temperature sensor shorted

Outdoor high pressure abnormal

Discharge pipe temperature abnormal

Model abnormal

Indoor fan abnormal

Outdoor signal abnormal

Outdoor EEPROM abnormal

2. OUTDOOR UNIT

When the outdoor temperature drops, the outdoor unit's fans may
switch to low speed, or one of the fans may stop intermittently.

ERROR

The LED lamps operate as follows (Table 10) according to the error
contents.

Table 10

Error contents LED1 LED2 LED3 LED4 LED5 LED6

Signal abnormal

Indoor unit abnormal

Discharge pipe
temperature abnormal

Outdoor heat exchanger
temperature abnormal

Outdoor temperature
abnormal

Power sorce connection
error

EEPROM abnormal

− − × ○ × ×

− − × × ○ ×

− − × × × ○

− − × × ○ ○

− − × ○ × ○

− − ○ × × ×

− − ○ ○ ○ ○

◎ ◎ ◎ ◎ ◎ ◎

Outdoor high pressure
abnormal

Discharge pipe
temperature abnormal

○: 0.5s ON/0.5s OFF (flash) ×: OFF
◎: 0.1s ON/0.1s OFF (flash) −: Indefinite

When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high pres­sure abnormal, the LED lamp lights continuously for 24 hours, as
long as the power is not turned off.

3. CHECKING DRAINAGE

To check the drain, remove the water cover and fill with 2 to 3rof
water as shown in Fig. 57.
The drain pump operates when operating in the cooling mode.

Fig. 57

Drain pipe

Watering pot

○ − − − − −

− ○ − − − −

Water cover

OPENING THE DUCT

CONNECTION HOLE

Fig. 58

Distribution duct Fresh air

Distribution duct

CAUTION

1

When performing hole opening work, be careful not to
damage the drain pan.

2

When connecting the distribution duct, to make the air
flow easily, block the outlet port with the blower cover
insulation as shown by the hatched lines in Fig. 58. For
the blocking direction, refer to Fig. 43.

1. DIMENSION

Screw position and connection hole which are fresh air duct and dis­tribution duct.

Fig. 59

97

45

P. D 120

°

ø100

160

12-ø3.3 self tapping screw holes (for 4 mm)

45°

P. D 88

ø70

334.2

2. DISTRIBUTION DUCT AND FRESH AIR DUCT HOLE
PROCESSING

Use the distribution duct hole and fresh air duct hole by removing
the insulation material as shown below.

Fig. 60

Cut

Cabinet

Cut

Cut off the part (Cabinet) indicated by the arrow in the Fig. 60 with

•

nippers, needle nose pliers, etc.

Fig. 61

Knife

Insulation
(Inner box)

Open the holes and cut the insulation with a knife.

•

Be careful not to damage the internal parts.

*

Be careful not to cut yourself on the cutout in the metal plate.

*

Please remove the insulation (inner box) left over after cutting.

*
Connect the distribution duct.

•

When mounting the duct, block the gap so that there is no cold

*

Cabinet

air leakage.
Insulate the duct and cut connection.

*

CAUTION

The air conditioner cannot take in fresh air by itself. When
connecting a fresh air duct, always use a duct fan.

Unit: mm

113

PART NO. 9363217018