General AUG45A, AUG45AGB3W, AOG45APA3L Technical Manual

CASSETTE TYPE AIR CONDITIONER

TECHNICAL MANUAL

FUJITSU GENERAL LIMITED

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CASSETTE TYPE AIR CONDITIONER

1. FEATURES AND OPERATION

2. SPECIFICATIONS

3. OUTLINES AND DIMENSIONS

4. D ATA

5. REFRIGERANT SYSTEM DIAGRAM

6. CIRCUIT DIAGRAM

7. NOISE LEVEL MEASUREMENT

8. PRECAUTIONS ON INSTALLATION

9. TROUBLESHOOTING

10. OPTIONAL PARTS

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1 FEATURES AND OPERATION

1.1 MODEL IDENTIFICATION

1.2 APPLICATION MODEL

1.3 FEATURES OF EACH MODEL

1.4 EASY OPERATION BY REMOTE CONTROLLER

1.4.1 WIRELESS TYPE CONTROL FUNCTIONS

1.4.2 LCD WIRED TYPE CONTROL FUNCTIONS

2 SPECIFICATIONS

2.1 AU18, 18R, 25, 25R, 30, 30R (1-PHASE 50Hz)

2.2 AU25, 36, 36R, 45, 45R (3-PHASE 50Hz)

2.3 AU25, 25R, 36, 36R (1-PHASE 60Hz)/AU45, 45R (3-PHASE 60Hz)

3 OUTLINES AND DIMENSIONS

3.1 GRILLE

3.2 INDOOR UNIT FOR AU18, 18R, 25, 25R

3.3 INDOOR UNIT FOR AU30, 30R, 36, 36R, 45, 45R

3.4 OUTDOOR UNIT FOR AO18, 18R, 25, 25R, 25(3)

3.5 OUTDOOR UNIT FOR AO30, 30R, 36, 36R, 45, 45R

4 D ATA

4.1 PERFORMANCE CURVE

4.1.1 AU18, 25

4.1.2 AU25(3)

4.1.3 AU18R,25R

4.1.4 AU30, 36, 45(3)

4.1.5 AU30R, 36R, 45R(3)

4.1.6 PIPE LENGTH FOR AU18, 18R, 25, 25R, 25(3), 30, 30R

4.1.7 PIPE LENGTH FOR AU36, 36R, 45(3), 45R(3)

4.2 TEMPERATURE RANGE

4.3 REFRIGERANT CHARGING

4.4 AIR VELOCITY DISTRIBUTION

4.4.1 AU18

4.4.2 AU25

4.4.3 AU30

4.4.4 AU36

4.4.5 AU45

4.5 DUCT CONNECTION

4.5.1 OUTLET AIR FOR AU30, 30R, 36(3), 36R(3), 45(3),45R(3)

4.5.2 FRESH AIR FOR AU30, 30R, 36(3), 36R(3), 45(3),45R(3)

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5 REFRIGERANT SYSTEM DIAGRAM

5.1 AU18/AO18

5.2 AU18R/AO18R

5.3 AU25/AO25, AU25(3)/ AO25(3)

5.4 AU25R/AO25R

5.5 AU30/AO30

5.6 AU30R/AO30R

5.7 AU36/AO36

5.8 AU36R/AO36R (50Hz)

5.9 AU36R/AO36R (60Hz)

5.10 AU45/AO45

5.11 AU45R/AO45R

6 CIRCUIT DIAGRAM

6.1 OVERALL CIRCUIT DIAGRAM

6.1.1 AU18/AO18, AU25/AO25 (Inside power supply)

6.1.2 AU18/AO18, AU25/AO25 (Outside power supply)

6.1.3 AU25(3)/AO25(3) (Low ambient cooling model)

6.1.4 AU18R/AO18R, AU25R/AO25R

6.1.5 AU30/AO30 (Low ambient cooling model)

6.1.6 AU30R/AO30R

6.1.7 AU36/AO36, AU45/AO45 (50Hz)

6.1.8 AU36/AO36, AU45/AO45 (50Hz) (Low ambient cooling model)

6.1.9 AU36/AO36R, AU45R/AO45R (50Hz)

6.2 INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM

6.2.1 AU18, 25 (Inside power supply)

6.2.2 AU18, 25, 30, 36, 45

6.2.3 AU18R, 25R, 30R, 36R, 45R

6.3 OUTDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM

6.3.1 AO18R, 25R

6.3.2 AO30R

6.3.3 AO36R, 45R (50Hz)

6.4 WIRELESS REMOTE CONTROLLER CIRCUIT DIAGRAM

6.5 LIQUID CRYSTAL WIRED REMOTE CONTROLLER CIRCUIT DIAGRAM

7 NOISE LEVEL MEASUREMENT

7.1 NOISE LEVEL CHECK POINTS

7.2 NOISE LEVEL CURVE

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8 PRECAUTIONS ON INSTALLATION

8.1 INSTALLAITION MANUAL

8.1.1 AU18, 25, 25(3)

8.1.2 AU18R, 25R

8.1.3 AU30, 36, 45 (50Hz)

8.1.4 AU30R, 36R, 45R (50Hz)

8.1.5 AU36R, 45R (60Hz)

8.1.6 AU36R, 45R (60Hz)

8.2 LIQUID CRYSTAL WIRED REMOTE CONTROL INSTALLATION

9 TROUBLESHOOTING

9.1 WIRELESS REMOTE CONTROL MODEL

9.2 LIQUID CRYSTAL WIRED REMOTE CONTROL MODEL

9.3 CARE AND MAINTENANCE

10 OPTIONAL PARTS

10.1 WIRELESS REMOTE CONTROL MODEL

10.2 LIQUID CRYSTAL WIRED REMOTE CONTROL MODEL

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1.1 MODEL IDENTIFICATION

INDOOR UNIT

1

A

TYPE
AU: CASSETE

OUTDOOR UNIT

1

2 10

2

U

DESTINATION
MARKET REGIONS

T: 50Hz FUJITSU

(AUSTRALIA)

Y: 50Hz FUJITSU

3

T

3

4

1

CAPACITY RANK

BTU/h

18: 18000
24: 24000
25: 25000
30: 30000
36: 36000
45: 45000

4

5

5

8

FUNCTION
TYPE

R: REVERSE

CYCLE

A: COOLING

ONLY

6

6

A

CONTROL
METHOD
(REMOTE

CONTROL)

L: WIRED

S: WIRELESS

78L9

7

S

SHOWING
MINOR
CHANGES

8

C

SPECIAL
METHOD

3: 3-PHASE

9

3

A

TYPE

AO: OUT-

DOOR

O

DESTINATION
MARKET REGIONS

T: 50Hz FUJITSU

(AUSTRALIA)

Y: 50Hz FUJITSU

T

1

CAPACITY RANK

BTU/h

18: 18000
24: 24000
25: 25000
30: 30000
36: 36000
45: 45000

8

A

FUNCTION
TYPE

R: REVERSE

CYCLE

A: COOLING

ONLY

W

SHOWING
COMPRESSOR
USED

A

SHOWING
MINOR
CHANGES

SPECIAL
METHOD
FUNCTION

3: 3-PHASE

L: LOW AMBIENT

TEMPERATURE
COOLING
OPERATION

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1.2 APPLICATION MODEL

TYPE MODEL NAME

AU18/AO18 AUY18ASC/AOY18AWA AUY18ASD/AOY18AWDL

AU18R/AO18R AUT18RLC/AOT18RWBL AUY18RLC/AOY18RWBL

AU25/AO25 AUT25ASC/AOT25AWA AUY25ASC3/AOY25ACA3L

AUY25ASC/AOY25AWA AUY25ASD3/AOY25ACD3L
AUY25ASD/AOY25AWDL

AU25R/AO25R AUT25RLC/AOT25RWDL AUY25RLD/AOY25RWDL

AUY25RLC/AOY25RWDL

AUY18RLD/AOY18RWDL

AU30/AO30 AUY30ASC/AOY30ABAL

AU30R/AO30R AUY30RLC/AOY30RBFL

AU36/AO36 AUY36ASC3/AOY36ACA3L AUT36ASC3/AOT36ACA3

AU36R/AO36R AUT36RLC3/AOT36RCB3L AUY36RLC3/AOY36RCB3L

AU45/AO45 AUY45ASC3/AOY45ACA3L AUT45ASC3/AOT45ACA3

AU45R/AO45R AUT45RLC3/AOT45RCB3L AUY45RLC3/AOY45RCB3L

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1.3 FEATURES OF EACH MODEL

Cassette type

AU18 AU18R
AU25 AU25R
AU25(3) AU30R
AU30 AU36R(3)
AU36(3) AU45R(3)
AU45(3)

Wireless remote
controller

Liquid crystal wired
remote controller

Auto restart

Auto louver

Auto fan speed

Dry

Off timer

On timer

Sleep

Program timer

Repeat timer

Zone control

Energy save

Simultaneous 16 air
conditioners control

Twin remote control

Auto change

Low ambient operation

( )

Function

Refer to the item 1.4.1 on page XX.

Refer to the item 1.4.2 on page XX.

In the event of a temporary power failure, the air conditioner
will automatically restart in the same operating mode as
before, once the power supply is restored.

The louver automatically swings to right and left. The
direction and the angle of the air flow can be easily
changed.

The optimum fan speed is available with the difference
between the indoor temperature and the setting
temperature.

The computer effectively dehumidifies the air.
(Air conditioner will operate with gentle cooling operation.)

When the timer reaches the set time, the air conditioner will
be turned off.

When the timer reaches the set time, the air conditioner will
be started.

The microcomputer gradually changes the room
temperature automatically to afford a comfortable night's
sleep.

Combines the OFF timer and the ON timer for one cycle.
(OFF

Æ ON or ON Æ OFF) Starts operation from the OFF

timer or ON timer, whichever is closer to the current time.
Combines the operation of the OFF timer and ON timer (the

cycle described in the PROGRAM timer above) so they
repeat the same cycle every day. Starts operation from the
OFF timer or ON timer, whichever is closer to the current
time.

When the ZONE CONTROL button is pressed while multiple
air conditioners are being centralized controlled, only the
preset air conditioners stop.

The energy conservation mode (ENERGY SAVE) raises the
set temperature slightly in the cooling mode and lowers the
set temperature in the heating mode, using a computer
program to economically control the operation of the unit.

One remote controller can control up to 16 air conditioners.
All the air conditioners can be operated with the same
setting.

Two remote controllers can be connected to one air
conditioner unit. The air conditioner operation contents are
the remote controller setting contents set later. (Both remote
controllers show the same display.)

In the auto mode, the air conditioner switches automatically
between cooling and heating, keeping the room at or around
the set temperature.

Cooling capacity is variable over a wide range, so the inside
environment stays comfortable with very little variation in
temperature or humidity.

NOTE: The parenthesis ( ) shows that the function is installed or not according to models.

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1.4 EASY OPERATION BY REMOTE CONTROLLER

1.4.1 WIRELESS REMOTE CONTROLLER

1

NON STOP CLOCK

2

1

Signal Transmitter

3

4

TIMER SET

AUTO AUTO

MASTER
CONTROL

THRTMOSTAT

Transmits control signals to the air conditioner.

2

SET TIME Buttons

/

( )

Use to make timer settings, to change the time, and to
set the clock to the current time.

3

TIMER Button

Use to select the various timer modes(OFF timer, ON
timer, PROGRAM timer, SLEEP timer, NON-STOP
operation).

4

MASTER CONTROL Switch

Use to select the various operating modes (AUTO,
COOL, DRY, FAN).

5

Remote Control Unit Display (LCD)

6

START

STOP Button

Press to start and stop operation.

7

ACL Button

5

6
7

8
9

10
11

LOW MED

26

28

START STOP

TIME ADJUST

TEST RUN

HIGH

LOUVER

30

ACL

TIME

COOL

DRY

FAN

FAN

CONTROL

18

20

22

24

19 21 23 25 27

12

8

TEST RUN Button

This button is used when installing the air conditioner,
and should not be used under normal conditions,
since it will cause the air conditioner's thermostat
function to stop operating properly.
If this button is pressed during normal operation, the
unit will switch to test operation mode, and the room
unit's operation lamp and timer lamp will begin to flash
simultaneously.
To stop the test operation mode, press the Operation
Stop button to stop the air conditioner.

9

TIME ADUST Button

10

LOUVER Button

Press it start and stop auto louver operation.
Press it to turn on and press again to turn off.

11

FAN CONTROL Switch

Use to select the fan speed (AUTO, LOW, MED,HIGH).

12

THERMOSTAT Control Switch

Use to set the desired room temperature.

Depending on the conditions in your room, the
displayed temperature may differ from the actual room
temperature.

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TIMER SET

TIME

START STOP

NON STOP CLOCK

SLEEP

TIMER

PROGRAM

OFF ON

1

2

3

NEXT

Remote Control Unit Display

Indicates the timer setting.

1

Transmit Indicator

This indicator is displayed when a signal is sent to the
air conditioner.

2

Time Display

Indicates either the current time or the timer setting (24­hour display,from 0:00 to 23:59).

When the word "CLOCK" is shown, the display
indicates the current time.

When the word " TIMER " is shown, the display
indicates the timer setting.

2

Time Mode Display

Indicates the timer mode (OFF timer, ON timer,
PROGRAM timer, SLEEP timer, NON-STOP).

When the remote control unit's batteries run low, the
display (especially the transmit indicator) will become
faint. Use this as a guide to indicate when batteries
should be replaced.
To facilitate explanation, the accompanying illustration
has been drawn to show all possible indicators ; in actual
operation, however, the display will only show those
indicators appropriate to the current operation.

Signals will not be transmitted properly if a wall, curtain, or other
object is between the air conditioner and the remote control unit.
The air conditioner may fail to operate properly if strong direct
light is allowed to strike the signal receiver. Use a curtain to
shade strong sunlight from windows, and place strong lamps at
a distance away from the signal receiver.
If another electric appliance is operated by the remote control
unit move the appliance away or consult with authorized service
personnel.

Do not place the remote control unit in locations where it may be
subjected to heat from direct sunlight or from heating apparatus.
Do not subject the remote control unit to strong impacts, and do
not allow water or other liquids to splash on it.
When the remote control unit is used in rooms furnished with
instant-lighting type fluorescent lamps, the air conditioner may
fail to receive control signals correctly.Consult with authorized
service personnel when purchasing a new fluorescent lamp.

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PREPARATION

Prepare the Remote Control Unit

Load batteries in the remote control unit and set the clock to the current time.

Set the Current TimeLoad Batteries (R6P / LR6 x 4)

Pull the battery cover in the direction of the

1

arrow to open it.

Press the TIME ADJUST button.

1

(Use the tip of a pen, etc., to press the button.)

CLOCK

Insert batteries, taking care to align the and

2

-

polarities correctly.

Push the battery cover in the direction of the

3

arrow to close it.

CAUTION!

Take precautions to prevent infants from accidentally swallowing
batteries.
When not using the remote control unit for an extended period,
remove the batteries to avoid possible leakage and damage to
the unit.
If leaking battery fluid comes in contact with your skin, eyes, or
mouth, immediately wash with copious amounts of water, and
consult your physician.
Dead batteries should be removed quickly and disposed of
properly, either by placing in a public battery collection
receptacle, or by returning to a properly equipped dealer.
Do not attempt to recharge dry batteries.

NOTE:

Never mix new and used batteries, or batteries of different
types.
Batteries should last about one year under normal use. If the
remote control unit's operating range becomes appreciably
reduced, replace the batteries and press the ACL button with
the tip of a ballpoint pen or other small object.

+

TIMER SET

AUTO AUTO

COOL

DRY

VASTER
CONTROL

FAN

FAN

CONTROL

TIME

START STOP

TIME ADJUST

LOW MED

HIGH

TEST RUN

ACL

TIME ADJUST
button

<Remote Control Unit Display>

The current time display will flash.

CLOCK

Press the SET TIME buttons to set the display

2

to the current time.

button: Press to advance the time setting.
button: Press to reverse the time setting.

(The time setting will be changed by 1 minute each time
a button is pressed; the time setting will change
continuously in 10-minute increments when a button is
held depressed.)

<Remote Control Unit Display>

The current time display will flash.

CLOCK

TIMER SET

(Example: When the display is set to 21:53)

TIME

START STOP

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Press the TIME ADJUST button once again.

3

<Remote Control Unit Display>

The current time display will stop flashing.

CLOCK

To Use the Remote Control Unit

Install the remote control so that the front is facing the
photocell.

Install the remote control with a distance of 7 m
between the remote control and the grille photocell as

the criteria.
However, when installing the remote control, check that
it operates positively.

Photocell

Remote control unit

Remote Control Unit Holder

This holder allows the remote control unit to be
mounted on a post or wall.
If the holder is installed in a place that allows the
signals from the remote control unit to be properly
received by the main unit, the air conditioner can be
controlled without removing the remote control unit
from its holder.

1

Installing the holder.

2

Setting the remote control unit.

Remote

Screw

(

medium

)

control
unit

Machine screw
(

)

small

Hook

Battery
cover

THRTMOSTAT

MASTER
CONTROL

FAN

CONTROL

AUTO AUTO

COOL

18

19 21 23 25 27

DRY

FAN

LOW MED

HIGH

TIME ADJUST

TEST RUN

ACL

LOUVER

TIMER SET

TIME

START STOP

NON STOP CLOCK

20 22

24

26 28

30

1

2

THRTMOSTAT

MASTER
CONTROL

FAN

CONTROL

AUTO AUTO

COOL

18

19 21 23 25 27

DRY

FAN

LOW MED

HIGH

TIME ADJUST

TEST RUN

ACL

LOUVER

TIMER SET

TIME

START STOP

NON STOP CLOCK

20

22 24

26 28

30

THRTMOSTAT

MASTER

CONTROL

FAN

CONTROL

AUTO AUTO

COOL

18

19 21 23 25 27

DRY

FAN

LOW MED

HIGH

TIME ADJUST

TEST RUN

ACL

LOUVER

TIMER SET

TIME

START STOP

NON STOP CLOCK

20

22 24

26

28 30

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AUTOMATIC OPERATION

During AUTO operation, the operating mode (cooling, etc.) will be selected automatically in accordance with room temperature
conditions at the time operation is started.

To Select Mode Operation

Set the MASTER CONTROL switch to the AUTO position.

1

Press the START STOP button.

2

Operation will start (operation will not start if the ON timer has been set).

<Indoor Unit Display>

The OPERATION indicator lamp will light.

To Set the Thermostat

Set the THERMOSTAT control to the desired position.

Range of temperature settings:
19, 21, 23, 25, 27˚C

To Set the Fan Speed

Set the FAN CONTROL switch to the desired position.

When the FAN CONTROL switch is set to the AUTO position,
the optimum fan speed will be selected automatically in accordance with room
temperature and other conditions.

To Stop Operation

Press the START STOP button.

About Automatic Operation

When the room temperature is 2°C higher than the set
temperature, the mode will switch between cooling and dry.
Most effective cooling will be produced by setting the FAN
CONTROL to HIGH.
During dry mode operation, FAN setting is switched to LOW for
gentle cooling effect, and the room fan may stop rotating
temporarily.

Cooling Operation

Dry Operation

2

C

Setting temperature

Thermostat control

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MODE OPERATION (COOL, DRY)

Use the dry mode when you wish to eliminate room humidity without lowering the room temperature excessively.

To Select Mode Operation

NON STOP CLOCK

Set the MASTER CONTROL switch to the desired position (COOL,

1

TIMER SET

AUTO AUTO

MASTER
CONTROL

THRTMOSTAT

18

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

20 22

19 21 23 25 27

1

FAN

CONTROL

24

26 28

LOW MED

30

ACL

HIGH

LOUVER

2

DRY).

Press the START STOP button.

The unit will start operating in the selected mode (operation will not start if the ON
timer has been set).

<Indoor Unit Display>

The OPERATION indicator lamp will light.

To Set the Thermostat

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER
CONTROL

THRTMOSTAT

18

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER
CONTROL

THRTMOSTAT

18

Set the THERMOSTAT control to the desired position.

2

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

20

22 24

19 21 23 25 27

FAN

CONTROL

26 28

LOW MED

30

ACL

HIGH

LOUVER

Range of temperature settings: 18 to 30˚C

To Set the Fan Speed

Set the FAN CONTROL switch to the desired position.

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

20

22 24

19 21 23 25 27

FAN

CONTROL

LOW MED

26

28 30

ACL

HIGH

LOUVER

When the FAN CONTROL switch is set to the AUTO position, the optimum fan
speed will be selected automatically in accordance with room temperature and
other conditions.
During the dry mode, fan speed is set automatically and cannot be changed.

To Stop Operation

Press the START STOP button.

About Mode Operation

Cooling
When using the cooling mode, set the temperature to a value
lower than the actual current room temperature. If it is set higher
than the current room temperature, the unit will not enter the
cooling mode and only the fan will operate.

Drying
In the dry mode, since preference will be given to removing
humidity, the room temperature may not be lowered to the
selected value.

When using the dry mode, set the temperature to a value lower
than the actual current room temperature. If it is set higher than
the current room temperature, the unit will not enter the dry
mode.
In the dry mode, the optimum fan speed will be set automatically
and cannot be changed. The fan will emit a very weak stream of
air.
In the dry mode, the room fan may occasionally stop in order to
prevent room humidity from rising.

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MODE OPERATION (FAN)

Use this mode when you wish to recirculate the air in your room.

To Select Mode Operation

Set the MASTER CONTROL switch to the FAN position.

NON STOP CLOCK

1

TIMER SET

AUTO AUTO

COOL

MASTER
CONTROL

THRTMOSTAT

18

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER
CONTROL

THRTMOSTAT

18

NON STOP CLOCK

START STOP

TIME

TIME ADJUST

TEST RUN

DRY

20

FAN

CONTROL

22 24

19 21 23 25 27

FAN

1

LOW MED

26

28 30

ACL

HIGH

LOUVER

2

Press the START STOP button.

2

Operation will start (operation will not start if the ON timer has been set).

<Indoor Unit Display>

The OPERATION indicator lamp will light.

To Set the Fan Speed

Set the FAN CONTROL switch to the desired position.

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

20

22

19 21 23 25 27

FAN

CONTROL

24 26

LOW MED

28 30

ACL

HIGH

LOUVER

When the AUTO fan speed is selected in the FAN mode, the fan speed will
automatically be set on MED.

To Stop Operation

Press the START STOP button.

TIMER SET

AUTO AUTO

COOL

MASTER
CONTROL

THRTMOSTAT

18

DRY

20

FAN

CONTROL

22

19 21 23 25 27

FAN

24 26

TIME

START STOP

TIME ADJUST

LOW MED

HIGH

28 30

TEST RUN

LOUVER

ACL

NOTE:

Do not allow the air conditioner's air stream to directly strike a kerosene or other space heater.
Incomplete combustion or fires may result.

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TIMER OPERATION

Press the START•STOP button; after the unit starts operation perform the following procedure:

OFF Timer/ON Timer

TIMER

OFF

TIMER SET

TIME

START STOP

Example: To set for OFF timer

TIMER

ON

TIMER SET

TIME

START STOP

1

Press the TIMER button, so that the timer mode display shows only
OFF or ON.

The timer will start operating (if the ON timer has been set, the unit will stop
operating).

<Indoor Unit Display>

The TIMER indicator lamp will light.

Each time the button is pressed the timer function changes in the following order:

RESET SLEEP OFF ON
PROGRAM (OFF ON, OFF ON)

Example: To set for ON timer

TIMER

OFF

TIMER SET

TIME

START

STOP

Example: To set the ON timer to turn

the air conditioner off at
00:00

To Confirm or Change Settings Before
Starting Operation

To confirm settings

Press the TIMER button once. (The timer
setting information will be displayed for 15
seconds after the TIMER button is
pressed.)

To change settings

Confirm the settings as noted above, then
press the SET TIME button and TIMER
button as necessary to change the
desired timer setting. (The timer settings
will be displayed for 15 seconds after the
button is pressed.)

After confirming or changing the settings,

press the START•STOP button to start
operation.

Press the SET TIME buttons to adjust the time (the accompanying

2

illustration shows the OFF timer).

Button: Press to advance the time setting.
Button: Press the reverse the time setting.

(Each time a button is pressed the time will change in 5-minute increments; when
held depressed the time will change continuously in 10-minute increments.)

To Change the Timer Setting During
Operation

Operate as noted in step 2.

To Change the Timer Mode During
Operation

Press the TIMER button and set the unit to
the desired mode.

To Cancel the Timer Mode During
Timer Operation

Press the TIMER button and set the display
to "NON STOP" (the unit will switch to non­stop operation).

To Stop Operation During Use of
Timer Mode

Press the START•STOP button.

During operation of the ON timer, the

indoor unit's OPERATION indicator lamp
will not light (the TIMER indicator lamp
will light instead).
When the time reaches the set value, the
unit will start operation and the
OPERATION indicator lamp will light.

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PROGRAM TIMER

Press the START•STOP button; after the unit starts operation perform the following procedure:

To Use the PROGRAM Timer

Press the TIMER button to select the "OFF" and "ON" timer modes

1

TIMER

OFF

TIMER SET

TIME

START STOP

To select OFF timer mode

and make the respective timer settings.

Press the TIMER button so that the display shows OFF ON

2

or OFF ON as desired.

TIMER

ON

TIMER SET

TIME

START STOP

To select ON timer mode

To Confirm or Change Settings Before
Starting Operation

See TIMER OPERATION

To Change Settings After Starting
Operation

<Remote Control Unit Display>

For 15 seconds, the display will switch between the "OFF timer" time and the "ON
timer" time. Then, it will switch to display the time setting for the timer operation
which will function first (the one closest to the current actual time).

<Indoor Unit Display>

The TIMER indicator lamp will light.

(Example: To set the OFF timer for 23:35 and the ON timer for 6:00)

Displayed

alternately

PROGRAM

TIMER

OFF

PROGRAM

TIMER

ON

After 15 seconds

TIMER

PROGRAM

OFF ON

To Change the Timer Mode During
Operation

Press the TIMER button and set the unit to
the desired mode.

To Stop Operation During Use of
Timer Mode

See TIMER OPERATION

1 Follow the instructions in step 1 of p.15 to

display the timer mode whose time
setting you wish to change.

2.Follow the instructions in step 2 to p.15 to
change the timer setting.
To change both the OFF timer and ON
timer settings, perform both of the above
steps 1,2 for each setting.

3.Press the TIMER button to display either
"OFF ON" or "OFF ON".

To Cancel the Timer Mode During
Timer Operation

Press the TIMER button and set the display
to "NON STOP" (the unit will switch to non
stop operation).

BACK

NEXT

SLEEP TIMER OPERATION

The SLEEP timer is different from other timer functions, in that it is used to set the amount of time the air conditioner operates
until it turns off (in the example shown, the air conditioner will turn off two hours after the current time).

Press the START•STOP button; after the unit starts operation perform the following procedure:

To Use the SELECT Timer

Press the TIMER button, so that the timer mode display shows only

1

SLEEP.

SLEEP

TIMER

OFF

TIMER SET

TIME

START STOP

<Indoor Unit Display>

The TIMER indicator lamp will light.

SLEEP

TIMER

OFF

TIMER SET

Example: To set the SLEEP timer

to turn the air conditioner
off after two hours.

TIME

START STOP

Press the SET TIMER buttons to adjust the time (the accom-

2

panying illustration shows the SLEEP timer).

Button: Press to advance the time setting
Button: Press to reverse the time setting

(Each time a button is pressed the time will change in 5-minute increments; when
held depressed the time will change continuously in 10-minute increments.)

To Confirm or Change Settings Before Starting Operation

See TIME OPERATION

To Change the Timer Setting During Operation

Operate as noted in step 2.

To Change the Timer Mode During Operation

Prese the TIMER button and set the unit to the desired mode.

To Cancel the Timer Mode During Timer Operation

Press the TIMER button and set the display to "NON STOP" (the unit will switch to
non-stop operation).

To Stop Operation During Use of Timer Mode

See TIME OPERATION

About the SLEEP Timer

This function changes the room thermostat setting over time, to
prevent excessive room cooling while you sleep. After the set time
has elapsed, the air conditioner operation turns off automatically.

During cooling and dry operation

When the sleep timer is set, the thermostat setting is raised 1°C
each hour. After the thermostat setting has been raised a total
of 2°C, that setting is maintained for the remainder of the set
time, and operation is then stopped.

SLEEP Timer setting

1 hour

Set time

1

c

Stop

2

c

BACK

NEXT

HOW TO CONTROL AIR DIRECTION

The power must be turned on in order to adjust the louver direction (attempting to move the
louvers by hand could result in damage).

CAUTION!

During cooling operation, if the louvers are adjusted to blow air directly downward for extended
periods of time, water may condense on the outlet port and louvers, and drip onto the floor.

Horizontal AUTO LOUVER

When the remote control unit's LOUVER button is pressed,
the automatic louver lamp lights and the direction of air flow
changes automatically between up and down.

Louver can be stopped at any position when the switch is
pressed to turn it off.

Horizontal louvers

CARE AND MAINTENANCE

Before cleaning the unit, be sure to stop the unit and disconnect the power supply.

CAUTION!

Cleaning the Air Filter

A clogged air filter reduces the airflow and weakens the
cooling effect. If the air filter remains clogged, it may cause
a defect.

How to remove the air filter

1. Push the intake grille pushbuttons two places until
you hear a "click".

Open the intake grille.

PUSH

Turn off the electrical breaker.
A fan operates at high speed inside the unit, and personal injury could result.

PUSH

How to clean the air filter

Clean the dust from the air filter by washing the filter with
water or blow it away with a vacuum cleaner. If the air filter
is very dirty, rinse the filter with warm or cool water mixed
with synthetic detergent and then wash the detergent
solution away with clean water and dry it.

Do not dry the air filter by exposing it to direct sunlight
or fire. This may damage the filter.
Avoid using hot water (40˚C or higher) to wash the
filter. This may damage the filter.

2. Pull the air filter once downward.

The air filter then comes out.

Cleaning the Indoor Unit

Wipe the cabinet with a dry soft cloth or clean with a cloth
dipped in hot water.
Use of a synthetic detergent is effective for cleaning.

Gasoline

Hot
Water

Polishing powder

Do not use gasoline, thinner, alcohol, benzine, chemicals,
polishing powder, etc. to clean the cabinet.

Benzine

BACK

NEXT

ERRORS AND SELF DIAGNOSIS

Operation can be checked by lighting and flashing of the grille display section OPERATION and TIMER lamps.
Perform judgment in accordance with the following:

MANUAL

OperationTimerLouver

OFF

POWER

ON

NORMAL

AUTO
RESTART

AUTO

Power ON

When the power is turned on, the grille display section
OPERATION and TIMER lamps flash quickly and
alternately.
When operation starts thereafter, flashing stops.

Test running

When the air conditioner is run by pressing the remote
control unit test running button, the OPERATION and
TIMER lamps flash slowly at the same time

Error

The OPERATION and TIMER lamps operate as follows
according to the error contents.

OPERATION
LAMP

TIMER
LAMP

OPERATION
LAMP

TIMER
LAMP

OPERATION
LAMP

TIMER
LAMP

Error display Error contents

0.5sec

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

0.1sec

0.1sec

0.5sec

0.1sec

5sec

0.1sec

0.5sec

5sec

0.1sec

0.5sec

5sec

0.1sec

0.5sec

Single quick
flash
repeated

0.1 sec ON/
OFF repeated

Two quick
flashes
repeated

0.1 sec ON/
OFF repeated

Six quick
flashes
repeated

0.1 sec ON/
OFF repeated

Room
temperature
thermistor
abnormal
temperature
detected

Piping
thermistor
abnormal
remperature
detected

Float switch
ON for 3
minutes or
longer

BACK

NON STOP
OFF ON
TIMER
PROGRAM
REPEAT

FAN AUTO
FAN HIGH
FAN MED
FAN LOW

AUTO
HEAT
FAN
COOL

CLOCK

TIMER

TEMP

SET

TIME

ENERGY

SAVE

ZONE

CONTROL

LOUVER

START

STOP

TIMER
MODE

CLOCK ADJUST

FAN

CONTROL

MASTER

CONTROL

DEFROST TEST

OFF
ON

ON
OFF

SET

TEMP

1

2

3

4

5

6

7

89

10

11

12

13

14

Remote Controller
Display

NEXT

1.4.2 LIQUID CRYSTAL REMOTE CONTROLLER

START/STOP Button

1

Press to start and stop operation.

2

Operation Lamp

Lights up during operation and when the timer is on

3

LOUVER Button

Press it start and stop auto louver operation. Press it to
turn on and press again to turn off.

4

LOUVER Lamp

Lights up during auto louver operation.

For explanatory purposes, the figure showing
the remote controller display shows all
possible displays.
The actual display shows only that area that
is being adjusted or used.

5

ZONE CONTROL Button

Use to turn the zone control on and off.

6

ZONE CONTROL Lamp

Lights up when the unit is in the zone control mode.

ENERGY SAVE Button

7

Turns the energy efficient mode on and off.

8

ENERGY SAVE Lamp

Lights up when the unit is in the energy save mode.

9

CLOCK ADJUST Button

10

TIMER MODE Button

Use to change timer modes (NON STOP, OFF TIMER,
ON TIMER, PROGRAM TIMER, REPEAT TIMER).

11

SET TIME Button ( / )

Use to change the timer settings,
and to set the current time.

12

SET TEMP. Button ( / )

Use to change the temperature setting.

13

FAN CONTROL Button

Use to select the fan speed (AUTO, HIGH, MED, LOW).

1 16

14

MASTER CONTROL Button

Use to select the various operating modes (AUTO,
HEAT, FAN, COOL).

BACK

NON STOP
OFF ON
TIMER
PROGRAM
REPEAT

FAN AUTO
FAN HIGH
FAN MED
FAN LOW

AUTO
HEAT
FAN
COOL

CLOCK

TIMER

TEMP

DEFROST TEST

OFF
ON

ON
OFF

4 5

6

7

321

NEXT

NAME AND FUNCTION OF PARTS

1

Remote Controller Display

* For explanatory purposes, the above figure shows all

possible displays. The actual display shows only that
area being adjusted or used.

Clock Display (CLOCK/TIMER)

Displays current or timer times (0:00 to 23:59).

2

Set Temperature Display (TEMP.)

Displays the set temperature.

Depending on the usage circumstances of the unit
(room width, outdoor temperature etc.)l, the displayed
temperature may differ from the actual room
temperature.

3

Operation Mode Display

Displays the operation mode (AUTO, HEAT, FAN,
COOL).

4

Timer Mode Display

Displays the timer mode (NON STOP, OFF TIMER, ON
TIMER, PROGRAM, REPEAT).

5

Fan Speed Display

Displays the current fan speed.

6

DEFROST Display

Displayed during defrosting.

7

TEST Display

Displayed during test operation.

PREPARATION

Set the Current Time

Press the CLOCK ADJUST button for more

1

than three seconds.

CLOCK

TIMER

SET

MODE

TIME

CLOCK ADJUST

ENERGY

SAVE

<Remote Controller Display>

The current time display will flash.

Press the SET TIME button and set the time.

SET

TEMP

ZONE

CONTROL

FAN

CONTROL

LOUVER

MASTER

CONTROL

START

STOP

2

: Use to advance the time forward.

: Use to turn the time back.
(Press once to move the time 1 minute; hold down and
the time will move 10 minutes at a time.)

CLOCK

TIMER
MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

CONTROL

SET

TEMP

ZONE

FAN

CONTROL

LOUVER

MASTER

CONTROL

START

STOP

<Remote Controller Display>

The current time display will flash.

Press the CLOCK ADJUST button again.

3

<Remote Controller Display>

The current time display will stop flashing.

CLOCK

Example: Set the time to 9:31.

1 17

BACK

NEXT

AUTO CHANGEOVER OPERATION

NON STOP

TIMER
MODE

CLOCK ADJUST

NON STOP

TIMER
MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

SET

TIME

ENERGY

SAVE

SET

TEMP

ZONE

CONTROL

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

FAN HIGH

FAN

CONTROL

LOUVER

AUTOCLOCK TEMP

MASTER

CONTROL

START

STOP

AUTOCLOCK TEMP

MASTER

CONTROL

START

STOP

1

To Select AUTO CHANGEOVER Operation

Press the START/STOP button.

1

The unit will start and the operation lamp will light up.

Press the MASTER CONTROL button to select AUTO.

2

The operating mode "AUTO" will appear alone in the display.

2

To Set the Thermostat

Set the SET TEMP. button to the desired temperature.

: Use to raise the set temperature.

(Press the button once to raise the temperature 1°C).

: Use to lower the set temperature.

(Press the button once to lower the temperature 1°C).

The temperature can be set 18 to 30°C .

To Change the Fan Speed

NON STOP

TIMER
MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

AUTOCLOCK TEMP

MASTER

CONTROL

START

STOP

Press the FAN CONTROL button to select the fan speed.

Every time you press the FAN CONTROL button, the speed changes as shown.

To Stop Operation

Press the START/STOP button.

<Remote Controller Display>

The display contents disappear and only the current time is displayed.

About AUTO CHANGEOVER Operation

When AUTO CHANGEOVER operation is selected, the air
conditioner selects the appropriate operating mode (Cooling or
Heating) in response to your room's temperature.
When AUTO CHANGEOVER operation first selected, the fan
will operate at very low speed for about one minute, during
which time the unit detects the room conditions and selects the
proper operating mode.
When the air conditioner has adjusted your room's temperature
to near the thermostat setting, it will begin monitor operation. In

AUTO HIGH MED LOW

the monitor operation mode, the fan will operate at low speed. If
the room temperature subsequently changes, the air conditioner
will once again select the appropriate operation (Heating, Cooling)
to adjust the temperature to the value set in the thermostat.
(The monitor operation range is ±2°C relative to the thermostat
setting.)
If the mode automatically selected by the unit is not what you
wish, see MODE OPERATION and select one of the mode operation
(HEAT, COOL, FAN).

BACK

NEXT

MODE OPERATION (HEAT, COOL)

Steps are recorded by the unit, after entering in this information, you need only press the START/STOP button to control the unit.

NON STOP

CLOCK TEMP

TIMER
MODE

CLOCK ADJUST

NON STOP

CLOCK TEMP

TIMER
MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

SET

TIME

ENERGY

SAVE

SET

TEMP

ZONE

CONTROL

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

FAN HIGH

FAN

CONTROL

LOUVER

COOL

MASTER

CONTROL

START

STOP

COOL

MASTER

CONTROL

START

STOP

1

To Select Mode Operation

Press the START/STOP button.

1

The unit will start and the operation lamp will light up.

Press the MASTER CONTROL button.

2

Select either HEAT or COOL.

2

To Set the Thermostat

Set the SET TEMP. button to the desired temperature.

: Use to raise the set temperature.

(Press the button once to raise the temperature 1°C ).

: Use to lower the set temperature.

(Press the button once to lower the temperature 1°C ).

Range of temperature setting:

For heating mode....................................................................... 16 to 30°C

For cooling mode........................................................................ 18 to 30°C

To Set the Fan Speed

NON STOP

CLOCK TEMP

TIMER
MODE

CLOCK ADJUST

SET

TIME

SET

TEMP

FAN HIGH

FAN

CONTROL

COOL

MASTER

CONTROL

Press the FAN CONTROL button to select the fan speed.

Every time you press the FAN CONTROL button, the speed changes as shown.

AUTO HIGH MED LOW

When the AUTO fan speed is selected in the heating or cooling modes, the fan
speed will vary with room conditions.

ENERGY

SAVE

ZONE

CONTROL

LOUVER

START

STOP

To Stop Operation

Press the START/STOP button.
<Remote Controller Display>

The display contents disappear and only the current time is displayed.

About Mode Operation

Heating

Always set the temperature higher than the current room temperature. If it is set lower than the current room temperature, heating will not start.
For about 3 to 5 minutes after starting heating, the fan will operate very slowly, then switch to the selected fan setting.

This period allows the indoor unit's heat-exchanger to perform before emitting warm air.
During defrosting, the heating mode will be temporarily interrupted. DEFROST will be shown on the remote controll er display.

Cooling

Always set the temperature lower than the current room temperature. If it is set higher than the current room temperature, the unit will not enter
the cooling mode and only the fan will operate.

BACK

NEXT

MODE OPERATION (FAN)

Steps are recorded by the unit, after entering in this information, you need only press the START/STOP button to control the unit

To Select MODE Operation

NON STOP

CLOCK TEMP

TIMER
MODE

CLOCK ADJUST

NON STOP

TIMER
MODE

CLOCK ADJUST

SET

SET

TIME

TEMP

ENERGY

ZONE

SAVE

CONTROL

CLOCK TEMP

SET

TIME

SET

TEMP

FAN HIGH

FAN

CONTROL

LOUVER

FAN HIGH

FAN

CONTROL

FAN

MASTER

CONTROL

START

STOP

FAN

MASTER

CONTROL

1

2

Press the START/STOP button.

1

The unit will start and the operation lamp will light up.

Press the MASTER CONTROL button to select FAN mode.

2

To Set the Fan Speed

Press the FAN CONTROL button to select the fan speed.

When the AUTO fan speed is selected in the FAN mode, the fan speed will
automatically be set on MED.

ENERGY

SAVE

ZONE

CONTROL

LOUVER

START

STOP

To Stop Operation

Press the START/STOP button.

<Remote Controller Display>

The display contents disappear and only the current time is displayed.

NOTE:
Do not allow the air conditioner's air stream to directly strike a kerosene or other space heater.
Incomplete combustion or fires may result.

About Mode Operation

The room temperature cannot be adjusted in the FAN mode. (The room temperature is not displayed on the remote controller.)

BACK

NEXT

TIMER OPERATION

Press the START/STOP button; after the unit starts operation perform the following procedure:

OFF Timer/ON Timer

CLOCK

OFF
TIMER

TIMER

TIMER
MODE

CLOCK ADJUST

1

ENERGY

SAVE

CLOCK

OFF
TIMER

TIMER

TIMER
MODE

Example: Setting the OFF TIMER

CLOCK ADJUST

SET

TIME

SET

TIME

to

TEMP

OFF
ON

ON
OFF

SET

TEMP

ZONE

2

CONTROL

TEMP

OFF
ON

ON
OFF

SET

TEMP

23:35.

FAN HIGH

FAN

CONTROL

LOUVER

FAN HIGH

FAN

CONTROL

COOL

MASTER

CONTROL

START

STOP

COOL

MASTER

CONTROL

Press the TIMER MODE button and display
either OFF Timer or ON Timer.

1

The timer will start operating.
(If you set the ON timer, the air conditioner will stop operating).

Each time the button is pressed the timer function changes in the foollowing order:

RESET OFF ON

REPEAT PROGRAM (OFF

Press the SET TIME button and set the timer time.

2

: Use to advance the time forward.
: Use to turn the time back.

(Press once to move the time 1 minute; hold down and the
time will move 10minutes at a time.)

ON,OFF ON)

1

ENERGY

SAVE

ZONE

2

CONTROL

LOUVER

START

STOP

To Confirm or Change Settings Before
Starting Operation

To confirm settings

Press the TIMER MODE button once.
(The timer setting information will be
displayed for 15 seconds after the TIMER
MODE button is pressed.)

To change settings

Confirm the settings as noted above, then
press the SET TIME button and TIMER
MODE button as necessary to change the
desired timer setting. (The timer settings
will be displayed for 15 seconds after the
button is pressed.)

After confirming or changing the settings,

press the START/STOP button to start
operation.

To Change the Timer Settings During
Operation

Operate as noted in step 2.

To Change the Timer Mode During
Operation

Press the TIMER MODE button and set the
unit to the desired mode.

To Cancel the Timer Mode During
Timer Operation

Press the TIMER MODE button and set the
display to "NON STOP" (the unit will switch
to non-stop operation).

To Stop Operation During Use of
Timer Mode

Press the START/STOP button.

BACK

NEXT

PROGRAM Timer/REPEAT Timer

CLOCK

TIMER

PROGRAM

TIMER
MODE

CLOCK ADJUST

ENERGY

SET

TIME

2

SAVE

TEMP

OFF

ON

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

COOL

MASTER

CONTROL

START

STOP

Example:

If the OFF timer is set at 23:35 and the
ON timer at 6:00, and the unit is in the
PROGRAM timer mode.(Select the
REPEAT timer mode,

REPEAT" is

shown on the display.)

About Timer Operation

Setting the timer time.

1

Follow steps 1 and 2 See TIME OPERATION and set the times for the ON timer
and OFF timer modes.

Press the TIMER MODE button until the "PROGRAM" or "REPEAT"

2

mode display is shown.

PROGRAM Timer

Combines the OFF timer and the ON timer for one cycle.
(OFF

Starts operation from the OFF timer or the ON timer, whichever
is closer to the current time.

To Confirm or Change Settings Before
Starting Operation

See TIME OPERATION

To Change Settings After Starting
Operation

1

Follow the instructions in step 1 to display
the timer mode whose time setting
you wish to change.

2

Follow the instructions in step 2 to change
the timer setting.
To change both the OFF timer and ON
timer settings, perform both of the above
steps 1,2 for each setting.

Press the TIMER MODE button to display

3

either "OFF ON" or "OFF ON".

ON, or OFF ON)

To Change the Timer Mode During
Operation

Press the TIMER MODE button and set the
unit to the desired mode.

To Cancel the Timer Mode During
Timer Operation

Press the TIMER MODE button and set the
display to "NON STOP" (the unit will switch
to non stop operation).

REPEAT Timer

Combines the operation of the OFF timer and the ON timer (the

cycle described in the PROGRRAM timer above) so they repeat
the same cycle every day.

Starts operation from the OFF timer or the ON timer, whichever

is closer to the current time.

To Stop Operation During Use of
Timer Mode

Press the START/STOP button.

BACK

NEXT

ENERGY SAVE OPERATION

To Use the ENERGY SAVE

NON STOP

CLOCK TEMP

TIMER

SET

MODE

CLOCK ADJUST

About the ENERGY SAVE

TIME

ENERGY

SAVE

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

COOL

MASTER

CONTROL

START

STOP

Press the ENERGY SAVE button.

The unit will run in the ENERGY SAVE mode.

To Stop the ENERGY SAVE

Press the ENERGY SAVE button one more time.

The ENERGY SAVE mode will be turned off.

<Remote Controller Display>

The ENERGY SAVE light goes off, and the unit will return to the former operating
conditions.

The energy conservation mode (ENERGY SAVE) raises the set temperature slightly in the cooling mode and lowers the set temperature in the

heating mode, using a computer program to economically control the operation of the unit.

If you press the ENERGY SAVE button while the air conditioner is on, it will change to the conservation mode. If you press the ENERGY SAVE

button while the unit is in the timer mode (ON timer, PROGRAM timer, or REPEAT timer), the unit will go into the conservation mode when the

unit starts with the timer.
If you turn off the air conditioner while in the conservation mode, the mode will be shut off.

The temperature set on the remote controller will not change if the energy save mode is used.

When Heating

After the ENERGY SAVE button is pressed, the set temperature
will be lowered about 1°C every 30 minutes. When it has lowered
a total of 2°C, then it will hold that temperature.

1

c

30 min.

2

c

When Cooling

After the ENERGY SAVE button is pressed, the set temperature
will be raised about 0.5°C every 30 minutes. When it has gone up
a total of 1°C, then it will hold that temperature.

Set to the ENERGY SAVE mode.

30 min.

1

0.5

c

c

Set to the ENERGY SAVE mode.

BACK

NEXT

HOW TO CONTROL AIR DIRECTION

The power must be turned on in order to adjust the louver direction (attempting to move the

CAUTION!

louvers by hand could result in damage).
During cooling operation, if the louvers are adjusted to blow air directly downward for extended
periods of time, water may condense on the outlet port and louvers, and drip onto the floor.

Horizontal AUTO LOUVER

When the remote control unit's AUTO LOUVER button is
pressed, the automatic louver lamp lights and the direction
of air flow changes automatically between up and down.

Louver can be stopped at any position when the switch is
pressed to turn it off.

Horizontal louvers

During heating, point the louvers down so that warn air
reaches the floor.

CARE AND MAINTENANCE

Before cleaning the unit, be sure to stop the unit and disconnect the power supply.

CAUTION!

Cleaning the Air Filter

A clogged air filter reduces the airflow and weakens the
cooling effect. If the air filter remains clogged, it may cause
a defect.

How to remove the air filter

1. Push the intake grille pushbuttons two places until
you hear a "click".

Open the intake grille.

PUSH

Turn off the electrical breaker.
A fan operates at high speed inside the unit, and personal injury could result.

PUSH

How to clean the air filter

Clean the dust from the air filter by washing the filter with
water or blow it away with a vacuum cleaner. If the air filter
is very dirty, rinse the filter with warm or cool water mixed
with synthetic detergent and then wash the detergent
solution away with clean water and dry it.

Do not dry the air filter by exposing it to direct sunlight
or fire. This may damage the filter.
Avoid using hot water (40˚C or higher) to wash the
filter. This may damage the filter.

2. Pull the air filter once downward.

The air filter then comes out.

1 24

Cleaning the Indoor Unit

Wipe the cabinet with a dry soft cloth or clean with a cloth
dipped in hot water.
Use of a synthetic detergent is effective for cleaning.

Gasoline

Hot
Water

Polishing powder

Do not use gasoline, thinner, alcohol, benzine, chemicals,
polishing powder, etc. to clean the cabinet.

Benzine

100 to 120

Hook shaft

Hook

BACK

NEXT

CARE AND MAINTENANCE

REMOVING / INSTALLING THE INTAKE GRILLE

Removing the intake grille

1. Push the intake grille pushbuttons (two places)
until you hear a "click".

Open the intake grille.

PUSH

PUSH

2. Remove the wire (hanger).

Removing the intake grille by opening it 100° to 120°.

Installing the intake grille

1. Tilt the intake grille 100

° to 120° and hook the

three hooks to the intake grille hook shaft.

2. Install the wire (hanger).

100 to 120

Wire
(

hanger

)

Wire
(

hanger

)

Wire
(

hanger

)

3. Push the intake grille pushbuttons (two places)
until you hear a "click".

Intake grille hooks

PUSH

PUSH

4. Hook the intake grille hooks to the grille
assembly.

BACK

NEXT

ERRORS AND SELF DIAGNOSIS

CLOCK

OFF
ON

TIMER

MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

TEMP

ZONE

CONTROL

SET

FAN

CONTROL

LOUVER

MASTER

CONTROL

START

STOP

If there is a problem with the air conditioner, it will stop
running and "EE:EE"will be displayed instead of the clock.

1. If the operation lamp is on then press the
START/STOP button to turn it off.

2. Press the ENERGY SAVE and the ZONE
CONTROL buttons at the same time for more
than three seconds to start the self diagnosis
check.
An error code will be displayed in the clock
display area.

3. Press the ENERGY SAVE and the ZONE
CONTROL buttons again for more than three
seconds to end the self diagnosis check.

Error code Error

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.
Float switch operated.

Outdoor temperature sensor open.

Outdoor temperature sensor shorted.
Discharge pipe temperature

sensor open.
Discharge pipe temperature

sensor shorted.
High pressure abnormal.
Discharge pipe temperature abno

rmal.

)

)

OPERATION DETAILS

Please read and understand the following details regarding this air conditioner.

Operation and Performance

Heating Performance

This air conditioner uses a heat pump which absorbs
heat from outside air and brings it indoors. As a result,
its heating performance is reduced as the temperature
of outside air drops. If you find that insufficient room
heat is produced, we recommend that you use the air
conditioner together with other heating appliances.
Heat-pump type air conditioners use warm-air
recirculation to warm your entire room. As a result,
some time will be required after starting operation until
your entire room becomes warm.

Microcomputer-controlled Automatic Defrosting

When the outside temperature is low and the humidity high,
frost will collect on the outside unit, reducing heater
efficiency. When this happens, the computer will

automatically start the defrost cycle. During the defrost
cycle, the indoor fan will shutdown and DEFROST will be
displayed on the remote controller. It will take anywhere
from 4 to 15 minutes before the air conditioner starts up
again.

When both indoor and outdoor temperatures are high during
use of the heating mode, the outdoor unit's fan may stop at
times.

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

When Indoor and Outdoor Temperatures are High

Low Ambient Cooling

1 26

BACK

NEXT

SYSTEM OPERATION

There are different ways the unit can be controlled.

<Spare Remote Controller>

Two remote controllers can be connected to one air
conditioner unit. The air conditioner operation contents
are the remote controller setting contents set later.
(Both remote controllers show the same display.)

To Use the ZONE CONTROL

NON STOP

CLOCK

TIMER

TIMER
MODE

CLOCK ADJUST

SET

TIME

ENERGY

SAVE

TEMP

OFF
ON

ON

OFF

SET

TEMP

ZONE

CONTROL

FAN HIGH

FAN

CONTROL

LOUVER

COOL

MASTER

CONTROL

START

STOP

When the ZONE CONTROL button is pressed while multiple air conditioners
are being centralized controlled, only the preset air conditioners stop.

Press the ZONE CONTROL button.

Preset units will stop.

To Stop the ZONE CONTROL

Press the ZONE CONTROL button one more time.

Those units that were stopped will start again.

<Control Several Units with just one Remote
Controller>

One remote controller can control up to 16 air conditioners.
All the air conditioners can be operated with the same
setting.

Unit No. 1 Unit No. 2 Unit No. 16

Auto Restart

When the air conditioner power was temporarily turned off by a power failure, etc., it will
restart automatically after the power recovers. (Operated by settings before the power failure.)

BACK

NEXT

2. SPECIFICA TIONS

2.1 AU18, 18R, 25, 25R, 30, 30R, 1-PHASE 50Hz

MODEL

Capacity

Power supply 1 ~ 220-240V 50Hz
Total

input
Total

current
EER
Starting current A

Indoor
unit

Grille

Outdoor
unit

Refrige­rant
circuit

Condition

Piping

Cooling

Heating

Cooling
Heating
Cooling
Heating
Cooling
Heating

Fan speedHiMed

Air
circulation

Noise level
(Sound
pressure)

Heat exchanger
Fan type x Q' ty
Fan motor output kW
Operation control

Dimensions

Weight kg Net/Gross

Dimensions

Weight kg Net/Gross
Fan speed
Air circulation Hi

Noise level dB
Heat exchanger
Fan type x Q 'ty
Fan motor output kW
Compressor type

Protection

Dimensions

Weight kg Net/Gross
Disch. pressure kg/cm
Suct. pressure kg/cm

Discharge temp. ˚C
Suction temp. ˚C
Refr. pipe length m
Disch. air temp.
Indoor

entering
air temp.

Ourdoor
entering
air temp.

Refrigerant charge kg(lb)
Pipe O D

size
Connection method

Between

kW

BTU/h

kW

BTU/h

kW
kW

A
A—

kW/kW
kW/kW —

r.p.m.
r.p.m.
r.p.m.

Low
Hi
Med
Low
Hi
Med
Low

H mm(inch)
W mm(inch)
D mm(inch)

H mm(inch)
W mm(inch)
D mm(inch)

Low

H mm(inch)
W mm(inch)
D mm(inch)

Cool
Heat
Cool
Heat

Liquid

Gas

Pipe length

Hi

Height

3

m

/h

3

m

/h

3

m

/h
dB
dB
dB

r.p.m.
r.p.m.

3

m

/h

kW 1.875 2 2.7Motor output

2

G

2

G

˚C

DB/WB ˚C
DB/WB ˚C
DB/WB ˚C
DB/WB ˚C

mm(inch)

mm(inch)

m
m

AU 18 AU 18R AU 25 AU 25R AU 30 AU 30R

5.25 - 5.40

17,900 - 18,400

—
—

2.05 - 2.15
—

10.0 - 10.5

2.56 - 2.51

66 / 74 68 / 76 67 / 75 68 / 76 94 / 108 96 / 110

Cooling Cooling Heating Cooling Cooling Heating Cooling Cooling Heating

19.8 19.1 19.7

5.0 5.2 4.5
99 90 85

9

13 13.5 41 14 13 42 11 12 45

1.14 (2.51) 1.65 (3.63) 1.95 (4.29) 2.07 (4.55) 1.80 (3.97) 2.20 (4.85)

5.10 - 5.15

17,400 - 17,500

5.20 - 5.25

17,700 - 17,900

1.95 - 2.05

1.95 - 2.05

9.6 - 10.2

9.6 - 10.1

2.62 - 2.51

2.67 - 2.56

50
500
430
360

1,000

850
700

41.5

37.0

34.0

0.037 0.050

216 (8 - 1/2") 302 (11-7/8")

26 / 33 38 / 45

740
280

2,590

56

Propeller x 1

0.060 x 1

Internal protector (OCR), High pressure relief valve
643 (25 - 5/16")
840 (33 - 1/16")
336 (13 - 1/4")

Max. 25 Max. 30 Max. 25

CASSETTE TYPE

7.00 - 7.10

23,900 - 24,200

—
—

2.64 - 2.77
—

12.8 - 13.2
—

2.65 - 2.56

—

Plate fin coil

Tubo fan x 1

Remote control

800 (31 - 1/2")
800 (31 - 1/2")

80 (3 - 5/32")
950 (37 - 13/32")
950 (37 - 13/32")

Plate fin coil

Hermetic (Recipro)

19.9

4.9
90

4

20.0 / (15.0)

15.88 (5/8")

6.95 - 7.05

23,700 - 24,100

7.60 - 7.85

25,900 - 26,800

2.60 - 2.73

2.45 - 2.55

12.7 - 13.0

11.4 - 11.8

2.67 - 2.58

3.10 - 3.08

61
580
510
430

1,200
1,025

850

45.0

42.0

39.0

6.5 / 11

20.1 21.2

4.9 4.0

101 81

9 1.0

5

27.0 / 19.0

35.0 / 24.0

7.0 / 6.0

9.53 (3/8")

Flare

Max.15

8.60 - 8.80

29,400 - 30,000

—
—

3.00 - 3.10
—

14.7 - 15.2
—

2.87 - 2.84

—

Propeller x 2

1,152 (45 - 11/32")

370 (14 - 9/16")

18.5

5.2
90

87 0.5

8.60 - 8.80

29,400 - 30,000

8.80 - 9.10

30,000 - 31,000

3.00 - 3.10

2.70 - 2.80

14.7 - 15.2

13.6 - 14.0

2.87 - 2.84

3.26 - 3.25

67
460
380
320

1,200

950
700

44.5

42.5

40.5

790
510

5,900

57

0.063 x 2

940 (37")

17.8 17.1

5.0 3.9
85 100

510

2 1

BACK

NEXT

2.2 AU25, 36, 36R, 45, 45R 3-PHASE 50Hz

MODEL

Capacity

Power supply 3 ~ 380 - 415V 50Hz
Total

input
Total

current
EER
Starting current A

Indoor
unit

Grille

Outdoor
unit

Refrige­rant
circuit

Condition

Piping

Cooling

Heating

Cooling
Heating
Cooling
Heating
Cooling
Heating

Fan speed

Air
circulation

Noise level
(Sound
pressure)

Heat exchanger
Fan type x Q' ty
Fan motor output kW
Operation control

Dimensions

Weight kg Net/Gross

Dimensions

Weight kg Net/Gross
Fan speed
Air circulation Hi

Noise level dB
Heat exchanger
Fan type x Q 'ty
Fan motor output kW
Compressor type

Protection

Dimensions

Weight kg Net/Gross
Disch. pressure kg/cm
Suct. pressure kg/cm

Discharge temp. ˚C
Suction temp. ˚C
Refr. pipe length m
Disch. air temp.
Indoor

entering
air temp.

Ourdoor
entering
air temp.

Refrigerant charge kg(lb)
Pipe O D

size
Connection method

Between

kW

BTU/h

kW

BTU/h

kW
kW

A
A—

kW/kW
kW/kW —

r.p.m.

Hi

r.p.m.

Med
Low

r.p.m.
Hi
Med
Low
Hi
Med
Low

H mm(inch)
W mm(inch)
D mm(inch)

H mm(inch)
W mm(inch)
D mm(inch)

Low

H mm(inch)
M mm(inch)
L mm(inch)

Cool
Heat
Cool
Heat

Liquid

Gas

Pipe length

3

m

/h

m3/h

3

/h

m

dB
dB
dB

Hi

r.p.m.
r.p.m.

3

m

/h

kW 1.870

2

G

2

G

˚C

DB/WB ˚C
DB/WB ˚C
DB/WB ˚C
DB/WB ˚C

mm(inch)

mm(inch)

Height

m
m

AU 25(3) AU 36(3) AU 36R(3) AU 45(3) AU 45R(3)

7.00 - 7.10

23,900 - 24,200

—
—

2.54 - 2.64
——

4.4 - 4.6
—

2.76 - 2.69

580
510

430
1,200
1,025

850

45.0

41.0

38.0

0.037 0.061 0.070

216 (8 - 1/2") 302 (11 - 7/8")

26 / 33 38 / 45

740 790
280

2,590

Propeller x 1

0.060 x 1

Internal protector (OCR) Internal protector (OCR), High pressure relief valve

643 (25 - 5/16")
840 (33 - 1/16")

336 (13 - 7/32")

67 / 57 94 / 108 95 / 110 102 / 116 108 / 122

Cooling Cooling Cooling Heating CoolingCooling Heating

19.6 18.8

4.8 5.1 5.0
84 90 95
15 6

14 11 12 42 12 12 46

2.03 (5.07) 2.15 (4.74) 2.8 (6.17) 3.15 (6.94) 3.4 (7.49)

15.88 (5/8") 19.05 (3/4")

Max. 35 Max. 50

3.73 - 3.80

2.76 - 2.76

35,200 - 36,000

—
—

6.4 - 6.4

—

—

57.5 58.056

CASSETTE TYPE

10.5 - 10.7

36,000 - 36,500

3.88 - 3.95

3.18 - 3.25

6.6 - 6.6

6.1 - 5.8 7.4 - 7.4

2.65 - 2.66

3.30 - 3.29

42 5532
570
470
380

1,400
1,150

900

49.0

45.0

42.5
Plate fin coil

Tubo fan x 1

Remote control

800 (31 - 1/2")
800 (31 - 1/2")

80 (31 - 5/32")
950 (37 - 13/32")
950 (37 - 13/32")

6.5 / 11

Plate fin coil

Hermetic (Recipro)

1.9

10

27.0 / 19.0

20.0 / (15.5)

35.0 / 24.0

7.0 / 6.0

9.53 (3/8")

Flare

Max. 30

510

Propeller x 2

0.063 x 2

1,152 (45 - 11/32")

940 (37")

370 (14 - 9/16")

16.820.2 19.0

4.4
80

18

5

12.4 - 12.710.3 - 10.5

42,500 - 43,500

—
—

—

—

—

—

5.0
90 90

46,000 - 47,000

4.45 - 4.57

7.5 - 7.5

2.79 - 2.78

680

570

490
1,700
1,500
1,200

53.5

50.0

46.5

790

5,5005,900

59.0

2.7Motor output

18.7

13.4 - 13.7

4.23 - 4.35

3.17 - 3.15

510

20.4

4.8 4.0
100

73

2 2

BACK

NEXT

2.3 AU25, 25R, 36, 36R, 1-PHASE / AU45,45R 3-PHASE 60Hz

MODEL

Capacity

Power supply 1 ~ 220V 60Hz 3 ~ 220V 60Hz
Total

input
Total

current
EER
Starting current A

Indoor
unit

Grille

Outdoor
unit

Refrige­rant
circuit

Condition

Piping

Cooling

Heating

Cooling
Heating
Cooling
Heating
Cooling
Heating

Fan speed

Air
circulation

Noise level
(Sound
pressure)

Heat exchanger
Fan type x Q' ty
Fan motor output kW
Operation control

Dimensions

Weight kg

Dimensions

Weight kg
Fan speed

Air circulation Hi
Noise level dB
Heat exchanger
Fan type x Q 'ty
Fan motor output kW
Compressor type

Protection

Dimensions

Weight
Disch. pressure

Suct. pressure kg/cm
Discharge temp. ˚C
Suction temp. ˚C
Refr. pipe length m
Disch. air temp.
Indoor

entering
air temp.

Ourdoor
entering
air temp.

Refrigerant charge kg(lb)
Pipe O D

size
Connection method

Between

W

W

W
W
A
A—

W/W
W/W —

Hi

r.p.m.
r.p.m.

Med
Low

r.p.m.

mm(inch)
mm(inch)
mm(inch)
Net/Gross
mm(inch)
mm(inch)
mm(inch)
Net/Gross

Hi

mm(inch)
mm(inch)
mm(inch)
Net/Gross

kg/cm

Gas

Height

3

m

/h

3

m

/h

3

m

/h
dB
dB
dB

r.p.m.

3

m

/h

kW 2 3.5 4.54Motor output

2

G

2

G

˚C

DB/WB ˚C
DB/WB ˚C
DB/WB ˚C
DB/WB ˚C

mm (inch)

mm (inch)

m
m

Hi
Med
Low
Hi
Med
Low

H

W

D

H

W

D

Low r.p.m.

H

M

L

kg

Cool
Heat
Cool
Heat

Liquid

Pipe length

AU 25 AU 25R AU 36 AU 36R AU 45 (3) AU 45R (3)

5,600

—

3,030

—

13.9

1.85

1,200
1,025

46.0

43.0

39.0

0.037 0.061

216 (8 - 1/2") 302 (11 - 7/8")

26 / 33 38 / 45

740

—

2,590

56 (COOL) 58 (HEAT) 58

Propeller x 1

0.060 x 1

643 (25 - 5/16")
840 (33 - 1/16")
336 (13 - 1/4")

67 / 75 68 / 76 94 / 108 96 / 110 102 / 115 108 / 122

Cooling Cooling Heating Cooling Cooling Heating Cooling Cooling Heating

24 25.3 21

5.2 5.3 4.0
96 108 74

7

15 15 45 12 14 46 12 14 46

1.75 (3.86) 2.07 (4.56) 2.2 (4.85) 2.6 (5.73) 3.35 (7.39) 3.60 (7.94)

15.88 (5/8") 19.05 (3/4")

Max. 15
Max. 25 Max. 50

7,500

3,250
2,700

15.2

12.7

1.73

2.78

66
580
510
430

850

280

Internal protector (OCR), High pressure relief valve

21.0 / (15.5) 21.0 / (15.5)

CASSETTE TYPE

9,000

—

4,600

—

21.5

—

1.96
—

77
560
510
460

1,400
1,250
1,100

48.5

46.0

43.5

Plate fin coil

Tubo fan x 1

Remote control

800 (31 - 1/2")
800 (31 - 1/2")

80 (3 - 5/32")

950 (37 - 3/32")

950 (37 - 13/32")

6.5 / 11

5,900 5,500

Plate fin coil

Hermetic (Recipro)

23

5.3
95

7

5

46.0 / 24.0

7.0 / 6.0

9.53 (3/8")

Flare

8,500

10,500 14,000

3,650

17.5

1.85

2.88

790

Propeller x 2

0.063 x 2

1,152 (45 - 11/32")

940 (37")

370 (14 - 9/16")

23 20

5.5 4.5
95 90
10 1

Max. 30

—

—

—

—

—

23.5

5.0

100

515 1

10,000

5,550

15.8

1.8

55
640
580
520

1,600
1,425
1,250

53.0

50.0

48.0

59.0

23.5 22.5

5.0 4.0
95 100

29.0 / 19.029.0 / 19.0

51

*The ceiling rear

4,750

14.0

2.95

510

2 3

BACK

NEXT

3. OUTLINES AND DIMENSIONS

3.1 Grille

)

mm

33-15/32" (850mm)

)

mm

2-29/64" (62

3.2 AU18, 18R, 25, 25R

23/32" (18

)

mm

37-13/32" (950

18 (457mm)

37-13/32" (950mm)

)

mm

31-1/2" (800

)

mm

8-1/2" (216

)

mm

10 (256

31-1/2" (800mm)

3 1

)

mm

28-25/32" (731

Top hole size

mm mm

890

Drain Inside Dia. 32

Outside Dia. 37

3-1/32" (95mm)

(Large, Small pipe)

890

x

Ø

Ø

6-1/2" (165mm)
(Drain pipe)

BACK

NEXT

3.3 AU30, 30R, 36, 36R, 45, 45R

18 (457mm)

)

mm

)

mm

31-1/2" (800

)

mm

)

mm

11-57/64"(302

13-15/32" (342

31-1/2" (800

mm

28-25/32" (731

Top hole size
890

mm

890

mm

)

Drain Inside Dia. 32
Outside Dia. 37

Ø

Ø

)

)

mm

mm

10" (253

(Drain pipe)

(Large, Small pipe)

4-7/32" (107

3 2

BACK

NEXT

3.4 AO18, 18R, 25, 25R, 25(3)

33-1/16" (840mm)

)13-7/64" (333

mm

)

25-5/16" (643

1" (25

)

mm

31-21/32" (804

3.5 AO30, 30R, 36, 36R, 45, 45R

mm

13-1/4" (336

)

mm

)

)

mm

)

mm

45-11/32" (1152

29/32" (23

)

mm

15-3/4" (400

25-19/32"

)

(650

mm

37" (940

mm

14-9/16" (370mm)

16-23/32"

)

(425

mm

)

3 3

BACK

NEXT

4. DATA

4.1 PERFORMANCE CURVE

4.1.1 AU18, AU25

120

110

Cooling

Low ambient operation model

100

90

Capacity(%)Total input(%)

80

70

100

90

80

0 5 10 15 20 30 35 40 45 505225

Indoor
DB/WB(˚C)

31/22

27/19

23/16
31/22

19/12.5

27/19

23/16

19/12.5

OUTDOOR DB (˚C)

4 1

BACK

NEXT

4.1.2 AU25(3)

120

110

Cooling

Low ambient operation model

100

90

Capacity(%)Total input(%)

80

70

100

90

80

0 5 10 15 20 30 35 40 45 505225

4.1.3 AU18R, AU25R

Indoor
DB/WB(˚C)

31/22

27/19

23/16
31/22

19/12.5

27/19

23/16

19/12.5

OUTDOOR DB (˚C)

120

110

100

90

Capacity(%)

80

70

100

90

Total input(%)

80

0 5 10 15 20 30 35 40 45 505225

Cooling

Low ambient operation model

OUTDOOR DB (˚C)

Indoor
DB/WB(˚C)

31/22

27/19

23/16
31/22

19/12.5

27/19

23/16

19/12.5

Heating

120

110

100

90

Capacity(%)Total input(%)

80

70

100

90

80

-5 0/-2 5/3 10/9.5 15/12 20 21/
OUTDOOR DB/WB (˚C)

15

Indoor
DB (˚C)

20
25

25
20

15

17.5

BACK

NEXT

4.1.4 AU30, AU36, AU45(3)

120

110

Cooling

100

90

Capacity(%)Total input(%)

80

70

100

90

80

0 5 10 15 20 30 35 40 45 505225

OUTDOOR DB (˚C)

4.1.5 AU30R, AU36R, AU45R(3)

Cooling

120

110

120

110

Indoor
DB/WB(˚C)

31/22.5

27/19.0

23/16.5
31/22.5
19/13

27/19.5

23/16.5

19/13

Heating

Indoor

DB (˚C)

15
20
25

100

90

Capacity(%)Total input(%)

80

70

100

90

80

0 5 10 15 20 30 35 40 45 505225

OUTDOOR DB (˚C)

Indoor
DB/WB(˚C)

31/22.5

27/19.0
23/16.5
31/22.5

19/13

27/19.5

23/16.5

19/13

100

90

80

Capacity(%)

70

100

Total input(%)

90

80

-5/-60/-25/310/

OUTDOOR DB /WB(˚C)

15/122021/

7.5

25
24
15

17.5

BACK

NEXT

4.1.6 AU18, AU18R, AU25, AU25R, AU25(3), AU30, AU30R

Pipe Size: Liquid 9.52 mm (3/8") Gas 15.88 mm (5/8")

100

90

82%

Capacity (%)

80

70

5 101520 253035

Connection pipe length (m)

Plotted under additional
refrigerant charge conditions.

4.1.7 AU36, AU36R, AU45(3), AU45R(3)

Pipe Size: Liquid 9.52 mm (3/8") Gas 19.05 mm (3/4")

100

90

85%

Capacity (%)

80

70

10 20 30 40 50

Connection pipe length (m)

Plotted under additional
refrigerant charge conditions.

BACK

NEXT

4.2 TEMPERATURE RANGE

AUY18ASC
AUY25ASC
AUT25ASC
AUT36ASC3
AUT45ASC3

AUY18ASD
AUY25ASD
AUY25ASC3
AUY25ASD3
AUY30ASC
AUY36ASC3
AUY45ASC3

AUY18RLC
AUY18RLD
AUT18RLC
AUT25RLC
AUY25RLC
AUY25RLD
AUY30RLC

MODEL

INDOOR UNIT OUTDOOR UNIT

COOL 18 — 32˚C

COOL

COOL

HEAT

18 — 32˚C

18 — 32˚C

30˚C or less

TEMPERATURE RANGE

21 52˚C

0 52˚C

0 52˚C

0 21˚C

—

—

—

—

AUY36RLC3
AUT36RLC3
AUT45RLC3
AUY45RLC3

COOL

HEAT

18 — 32˚C

30˚C or less -5 21˚C

Outdoor Unit Standard mode

Low ambient cooling operation
model

Low ambient heating operation
model

0 to 52˚C (cooling)

-5 to 21˚C (heating)

0 52˚C

—

—

21 to 52˚C (cooling)
0 to 21˚C (heating)

BACK

NEXT

4.3 REFRIGERANT CHARGING

Models

FULL
CHARGE
AMOUNT

Models

Pipe Length

AU18

AU18R

AU25 1,950g 2,010g 2,070g 2,130g 2,190g 12g
(50Hz) (68.8 oz) (70.9 oz) (73.0 oz) (75.1 oz) (77.3 oz) (0.42 oz)

AU25 1,750g 1,810g 1,870g 1,930g 1,990g 12g
(60Hz) (61.7 oz) (63.8 oz) (65.8 oz) (67.8 oz) (69.9 oz) (0.42 oz)

AU25R 2.070g 2,240g 2,410g 2,580g 2,750g 34g
(50Hz) (73.0 oz) (79.0 oz) (85.0 oz) (91.0 oz) (97.0 oz) (1.20 oz)

AU25R 2.070g 2,240g 2,410g 2.580g 2,750g 34g

AU30 1,800g 1,885g 1,970g 2,055g 2,140g 2,225g 17g

AU30R 2,200g 2,450g 2,700g 2,950g 3,200g 50g

Pipe Length

16ft( 5m) 33ft (10m) 49ft (15m) 66ft (20m) 82ft (25m) 99ft (30m)

1,140g 1,200g 1,260g 1,320g 1,380g 12g

(40.2 oz) (42.4 oz) (44.5 oz) (46.6 oz) (48.7 oz) (0.42 oz)

1,650g 1,890g 2,130g 2,370g 2,610g 48g

(58.2 oz) (66.7 oz) (75.2 oz) (83.6 oz) (92.1 oz) (1.69 oz)

(73.0 oz) (79.0 oz) (85.0 oz) (91.0 oz) (97.0 oz) (1.20 oz)

(63.5 oz) (66.5 oz) (69.5 oz) (72.5 oz) (75.5 oz) (78.5 oz) (0.60 oz)

(77.6 oz) (86.4 oz) (95.2 oz) (104.1 oz) (112.9 oz) (1.76 oz)

16ft( 5m) 33ft (10m) 66ft (20m) 99ft (30m) 132ft (40m) 165ft (50m)

Additional

refrigerant

Additional

refrigerant

FULL
CHARGE
AMOUNT

AU25(3) 2,030g 2,090g 2,210g 2,330g

(71.6 oz) (73.7 oz) (78.0 oz) (82.2 oz) (84.3 oz) (0.42 oz)

AU36(3) 2,150g 2,285g 2,555g 2,825g 3,095g 3,365g 27g
(50Hz) (75.9 oz) (80.6 oz) (90.1 oz) (99.7 oz) (109.2 oz) (118.7 oz) (0.95 oz)

AU36 2,200g 2,335g 2,605g 2,875g 3,145g 3,415g 27g
(60Hz) (77.6 oz) (82.4 oz) (91.9 oz) (101.4 oz) (110.9 oz) (120.4 oz) (0.95 oz)

AU36R 2,800g 3,200g 3,600g 4,000g 40g
(50Hz) (98.8 oz) (112.9 oz) (127.0 oz) (141.1 oz) (1.41 oz)

AU36R 2,600g 3,000g 3,400g 3,800g 40g
(60Hz) (91.7 oz) (105.8 oz) (119.9 oz) (134.0 oz) (1.41 oz)

AU45(3) 3,150g 3,550g 3,950g 4,350g 40g
(50Hz) (111.1 oz) (125.2 oz) (139.3 oz) (153.4 oz) (1.41 oz)

AU45(3) 3,350g 3,750g 4,150g 4,550g 40g
(60Hz) (118.1 oz) (132.2 oz) (146.3 oz) (160.4 oz) (1.41 oz)

AU45R(3) 3,400g 3,800g 4,200g 4,600g 40g
(50Hz) (119.9 oz) (134.0 oz) (148.1oz) (162.2 oz) (1.41 oz)

AU45R(3) 3,600g 4,000g 4,400g 4,800g 40g
(60Hz) (127.0 oz) (141.1 oz) (155.2 oz) (169.3 oz) (1.41 oz)

MAX35m2,390g

12g

BACK

NEXT

4.4 AIR VELOCITY DISTRIBUTION

4.4.1 AU18 AIR VELOCITY DISTRIBUTION

4-WAY AIR OUTLET

(m)

2

1

0

1

2

3

7

6

(m)

2

1

0

6

7

(m)

Note:

Condition

Fan speed: High
Operation mode: FAN
Voltage: 240V

Fig. 4.4.1-1

TOP VIEW
HORIZONTAL LOUVER:Upward

4

UNIT:m/s

6

5

(m)

0.25

0.5

1
2

0.25

4

5

3

1

0.5

2

2
1

0.5

0.25

0

1

2

1

2

1

0.25

0.5

2

3

Fig4.4.1-1

UNIT:m/s

2

1

2

1

Fig. 4.4.1-2

0.5

0.25

5

4

3

1

2

1

0

0.5

0.25

2

4

3

6

5

(m)

SIDE VIEW
HORIZONTAL LOUVER:Upward

Fig4.4.1-2

UNIT:m/s

2
1

0

0.25

2

1

0.5

1

2

Fig4.4.1-3

2-WAY AIR OUTLET

(m)

1

0

1

2

6

7

(m)

2

1

0

7

6

(m)

Fig. 4.4.1-3

SIDE VIEW
HORIZONTAL LOUVER:Downward

1

2

2

0

1

1

2

2

1

0.5

2

1

0.5

0.25

1

0

0.25

5

2

0.5

3

4

Fig4.4.1-4

2

1

0.25 0.25

5

0.5

3

4

1

2

0

2

1

0.5

1

2

Fig4.4.1-5

UNIT:m/s

0.25

Fig. 4.4.1-4

TOP VIEW
HORIZONTAL LOUVER:Upward

3

4

5

(m)

6

UNIT:m/s

Fig. 4.4.1-5

SIDE VIEW
HORIZONTAL LOUVER:Upward

4

3

5

(m)

6

BACK

NEXT

4.4.2 AU25 AIR VELOCITY DISTRIBUTION

4-WAY AIR OUTLET

(m)

2

1

0

1

2

3

7

6

5

(m)

2

1

0

6

7

5

(m)

0.25

4

4

3

0.25

3

UNIT:m/s

0.25

0.5

1
2

Note:

Condition

Fan speed: High
Operation mode: FAN

UNIT:m/s

2

0.5

1

2

2
1

1

0.25

0.5

Voltage: 240V

Fig. 4.4.2-1

0.5

0.25

0

1

2

2

1

4

3

5

(m)

6

TOP VIEW
HORIZONTAL LOUVER:Upward

Fig4.4.2-1

UNIT:m/s

2

1

0.5

1

2

0

2

1

0.5

0.25

1

2

4

3

5

6

(m)

Fig. 4.4.2-2

SIDE VIEW
HORIZONTAL LOUVER:Upward

Fig4.4.2-2

2
1

0

0.25

2

1

0.5

1

2

Fig4.4.2-3

2-WAY AIR OUTLET

(m)

1

0

0.25

1

2

6

7

5

(m)

2

1

0

7

6

0.25

5

2

1

0.5

0.25

1

0

2

Fig. 4.4.2-3

SIDE VIEW
HORIZONTAL LOUVER:Downward

(m)

UNIT:m/s

1

0.5

2

1

2

0.5

0.25

Fig. 4.4.2-4

TOP VIEW

3

4

2

0

11

2

3

5

4

(m)

6

HORIZONTAL LOUVER:Upward

Fgi4.4.2-4

UNIT:m/s

2

1

0.5

3

4

1

2

0

2

1

0.5

2

1

3

0.25

4

6

5

(m)

Fig. 4.4.2-5

SIDE VIEW
HORIZONTAL LOUVER:Upward

Fig4.4.2-5

BACK

NEXT

4.4.3 AU30 AIR VELOCITY DISTRIBUTION

4-WAY AIR OUTLET

(m)

0.25

0.5

2

1

0

1

2

0.50.5

1

221

0.250.25

UNIT:m/s

Note:

Condition

Fan speed: High
Operation mode: FAN
Voltage: 240V

1

2

3

7

6

5

(m)

2

1

0

7

6

5

(m)

2

2

1

0

1

0.5

0.25 0.25

22

1

0

Fig4.4.3-3

4

4

2

1

1

3

0.5

0.25

3

UNIT:m/s

0.5

(m)

2

1

0.5

2

0.25

0

11

Fig4.4.3-1

2

1

2

0

11

2

1

0.5

Fig4.4.3-2

Fig. 4.4.3-3

SIDE VIEW
HORIZONTAL LOUVER:Downward

0.25

Fig. 4.4.3-1

TOP VIEW
HORIZONTAL LOUVER:Upward

32

4

6

5

(m)

UNIT:m/s

Fig. 4.4.3-2

SIDE VIEW
HORIZONTAL LOUVER:Upward

32

4

6

5

(m)

2-WAY AIR OUTLET

(m)

1

0

1

2

7

6

5

(m)

2

1

0

7

6

5

0.25

0.25

UNIT:m/s

Fig. 4.4.3-4

1

0.5

1

2

2

0.25

0.5

TOP VIEW
HORIZONTAL LOUVER:Upward

3

4

2

0

11

32

4

6

5

(m)

Fig4.4.3-4

UNIT:m/s

Fig. 4.4.3-5

2

1

0.5

3

4

2

0

11

2

1

0.5

0.25

32

4

6

5

(m)

SIDE VIEW
HORIZONTAL LOUVER:Upward

Fig4.4.3-5

BACK

NEXT

4.4.4 AU36 AIR VELOCITY DISTRIBUTION

4-WAY AIR OUTLET

(m)

0.5

0.25

1

2

2

1

0.5

0

0.25

1

2

1

2

0.5

UNIT:m/s

0.25

Note:

Condition

Fan speed: High
Operation mode: FAN
Voltage: 240V

1

2

3

7

6

5

(m)

2

1

0

7

6

0.25

5

(m)

2

2

1
0

1

0.5

0.25

22

1

0

Fig4.4.4-3

2-WAY AIR OUTLET

(m)

4

4

2

0.5

1

1

3

1

3

UNIT:m/s

0.5

0.25

(m)

2

1

0.5

0.25

2

0

11

Fig4.4.4-1

2

2

0

11

2

Fig4.4.4-2

Fig. 4.4.4-3

SIDE VIEW
HORIZONTAL LOUVER:Downward

Fig. 4.4.4-1

TOP VIEW
HORIZONTAL LOUVER:Upward

32

4

5

(m)

6

UNIT:m/s

Fig. 4.4.4-2

1

0.5

0.25

32

4

6

5

(m)

SIDE VIEW
HORIZONTAL LOUVER:Upward

UNIT:m/s

(m)

1

0.25

0

0.5

1

2

7

6

5

1

2

2

1

0.5

0.25

Fig. 4.4.4-4

TOP VIEW

3

4

2

0

11

32

4

6

5

(m)

HORIZONTAL LOUVER:Upward

Fig4.4.4-4

UNIT:m/s

2

1

0.25

0

7

6

0.5

4

5

2

2

Fig. 4.4.4-5

SIDE VIEW

1

3

2

0

11

1

0.25

0.5

32

4

6

5

(m)

HORIZONTAL LOUVER:Upward

Fig4.4.4-5

BACK

NEXT

4.4.5 AU45 AIR VELOCITY DISTRIBUTION

4-WAY AIR OUTLET

(m)

0.25

0.5

1

2

2

1

UNIT:m/s

Note:

Condition

Fan speed: High
Operation mode: FAN
Voltage: 240V

3

(m)

(m)

0.25

0

0.5

1

2

3

7

6

4

5

2

2

1

0.25

0

7

6

0.5

5

1

3

4

UNIT:m/s

2
1

0.25

0

2

1

0.5

22

1

2

1

0.5

0.25

1

0

(m)

Fig4.4.5-3

21

2

1

0.5

0

11

Fig4.4.5-1

2

2

0

11

Fig4.4.5-2

Fig. 4.4.5-3

SIDE VIEW
HORIZONTAL LOUVER:Downward

0.25

2

1

0.5

0.25

Fig. 4.4.5-1

TOP VIEW
HORIZONTAL LOUVER:Upward

32

4

6

5

(m)

UNIT:m/s

2

Fig. 4.4.5-2

SIDE VIEW

1

0.5

32

4

5

0.25

6

(m)

HORIZONTAL LOUVER:Upward

2-WAY AIR OUTLET

(m)

1

0.25

0

0.5

1

2

7

6

5

(m)

2

1

0.25

0

7

0.5

6

5

UNIT:m/s

1

2

1

2

0.5

0.25

Fig. 4.4.5-4

TOP VIEW

3

4

2

0

11

32

4

6

5

(m)

HORIZONTAL LOUVER:Upward

Fig4.4.5-4

UNIT:m/s

2

2

Fig. 4.4.5-5

SIDE VIEW

1

3

4

2

0

11

1

32

0.5

4

5

0.25

6

(m)

HORIZONTAL LOUVER:Upward

Fig4.4.5-5

BACK

NEXT

4.5 DUCT CONNECTION

4.5.1 OUTLET AIR

AU30, AU30R, AU36(3), AU36R(3), AU45(3), AU45R(3)

10

9
8

7

(mmAq)

6
5
4
3
2
1

0

123450

240V Hi
220V Hi

240V Ho
220V Ho

L=5m

3

(m /min)

Duct (inside dia. ø100mm)

L

L=3m

L=1m

10

9
8

7

(mmAq)

6
5
4
3
2
1

0

123450

4.5.2 FRESH AIR

AU30, AU30R, AU36(3), AU36R(3), AU45(3), AU45R(3)

7

6

5

(mmAq)

4

3

2

Static pressure (P)
required to take
in fresh air

1

0

0 0.1 0.2 0.3 0.4 0.5 0.6

240V Hi
220V Hi

240V Ho
220V Ho

Duct (inside dia. ø100mm)

L

L=5m

L=3m

L=1m

3

(m /min)

Duct (inside dia. ø100mm)

Duct Fan

P

3

(m /min)

BACK

NEXT

5. REFRIGERANT SYSTEM DIAGRAM

5.1 AU18 / AO18

Indoor Unit

Evaporator

5.2 AU18R / AO18R

Distributor

Refrigerant pipe

ø9.53mm(3/8"

Refrigerant pipe

ø15.88mm(5/8"

Charging valve

Outdoor Unit

)

Capillary
tube

Dryer

Condenser

Compressor

)

Muffler

Indoor Unit

Evaporator

: Flare coupling

Cooling
Heating

Refrigerant pipe

ø9.53mm(3/8"

Refrigerant pipe

ø15.88mm(5/8"

Charging valve

Check valve

)

Accumulator

)

Outdoor Unit

Four way
valve

Capillary
tube

Strainer

Compressor

Muffler

Dryer

Condenser

5 1

BACK

NEXT

5.3 AU25/AO25, AU25(3) / AO5(3)

Indoor Unit

Evaporator

Distributor

Refrigerant pipe

ø9.53mm(3/8" )

Refrigerant pipe

ø15.88mm(5/8" )

Charging valve

Outdoor Unit

Capillary
tube

Compressor

Dryer

Condenser

Muffler

5.4 AU25R / AO25R

Indoor Unit

Evaporator

Refrigerant pipe

ø9.53mm(3/8")

Refrigerant pipe

ø15.88mm(5/8" )

Charging valve

Outdoor Unit

Accumulator

Four way
valve

Capillary
tube

Strainer

Dryer

Compressor

Condenser

Muffler

Cooling
Heating

: Flare coupling

Check valve

BACK

NEXT

5.5 AU30 / AO30

Indoor Unit
Distributor

Evaporator Evaporator

5.6 AU30R / AO30R

ø9.53mm(3/8"

Refrigerant pipe

Charging valve

Refrigerant pipe

ø15.88mm(5/8"

Charging valve

)

Capillary
tube

)

Compressor

Outdoor Unit

Dryer

Condenser
Condenser

Muffler

Indoor Unit

Distributor

Evaporator Evaporator

Cooling
Heating

: Flare coupling

ø9.53mm(3/8"

Refrigerant pipe

Charging valve

Refrigerant pipe

ø15.88mm(5/8"

Charging valve

Check valve

Outdoor Unit

Capillary

)

Strainer

Capillary
tube

Compressor

Accumulator

Muffler

)

Four way
valve

tube

Dryer

Strainer

Distributor

Condenser

Condenser

Muffler

BACK

NEXT

5.7 AU36 / AO36

Indoor Unit

Distributor

Evaporator Evaporator

5.8 AU36R / AO36R(50Hz)

ø9.53mm(3/8"

Refrigerant pipe

Charging valve

Charging valve

Refrigerant pipe

ø19.05mm(3/4"

)

Capillary
tube

Thermistor
(

Discharge gas

Compressor

)

Accumulator

Outdoor Unit

Dryer

Condenser

Condenser

)

Muffler

Indoor Unit

Distributor

Evaporator Evaporator

Cooling
Heating

: Flare coupling

ø9.53mm(3/8"

Refrigerant pipe

Charging valve

Refrigerant pipe

ø19.05mm(3/4"

Charging valve

Check valve

Capillary

)

)

tube

Dryer

Expansion
valve

Compressor

Accumulator

Four way
valve

Outdoor Unit

Strainer

Condenser

Condenser

Muffler

BACK

NEXT

5.9 AU36R / AO36R(60Hz)

Indoor Unit

ø9.53mm(3/8" )

Refrigerant pipe

Outdoor Unit

Capillary tube

Dryer

Distributor

Evaporator Evaporator

5.10 AU45 / AO45

Charging valve

Charging valve

Refrigerant pipe

ø19.05mm(3/4" )

Accumulator

Four way
valve

Expansion
valve

Distributor

Compressor

Muffler

Condenser

Strainer

Indoor Unit

Distributor

Evaporator Evaporator

Cooling
Heating

: Flare coupling

ø9.53mm(3/8" )

Refrigerant pipe

Charging valve

Charging valve

Refrigerant pipe

ø19.05mm(3/4" )

Check valve

Outdoor Unit

Capillary tube

Thermistor
(

Discharge gas

Accumulator

Dryer

Condenser

)

Compressor

Muffler

BACK

NEXT

5.11 AU45R / AO45R

Indoor Unit

Distributor

Evaporator Evaporator

ø9.53mm(3/8" )

Refrigerant pipe

Charging valve

Capillary tube

Dryer

Compressor

Accumulator

Expansion
valve

Distributor

Condenser

Outdoor Unit

Dryer

Cooling
Heating

: Flare coupling

Refrigerant pipe

ø19.05mm(3/4")

Charging valve

Check valve

Muffler

Four way
valve

BACK

NEXT

6. CIRCUIT DIAGRAM

6.1 OVERALL CIRCUIT DIAGRAM

6.1.1 AU18 / AO18, AU25 / AO25 (Inside power supply)

<APPLICATION MODELS>

AUY18ASC/AOY18AWA
AUY25ASC/AOY25AWA
AUT25ASC/AOT25AWA

THERMISTOR
(PIPE TEMP)DRAIN PUMP

GREEN

1 2 1 23 4

CN.18

MOTOR

DISPLAY UNIT

M

JET VANE

MOTOR

M

BLACK

1 2 1 2

YELLOW

BLUE

WHITE

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

PURPLE

GRAY

WHITE

BLACK

HA

1 2 1 23 4 5 6 1 2 3 4 5 67 8 9

CN.8 CN.17 CN.3 CN.2 CN.10 CN.5

10 11 12

YELLOW

YELLOW

YELLOW

1 2 1 2

BLACK

BLACK

BLACK

PRINTED CIRCUIT BOARD

GRAY

GRAY

FAN

MOTOR

BLUE

PURPLE

WHITE

BLACK

PINK

RED

CN.16 CN.1 CN.15 CN.19 CN.9 CN.7 CN.6 CN.4

1 2 3 1 2 1 2 3 1 2 3 1 2

1 2 1 2 1 2

TEST

BLACK

L N

BLACK

1

2

(N)

BROWN

BROWN

1 2 3

FLOAT SWITCH

COMPRESSOR

INTERNAL
OVERLOAD
PROTECTOR

COMPRESSOR
CAPACITOR

BLACK

BLACK

THERMISTOR
(ROOM TEMP)

BLACK BLACK

C

S

R

TERMINAL

WHITE

RED

1

(N)

RED

RED

PURPLE

TRANSFORMER

FAN MOTOR

YELLOW/GREEN

THERMAL
PROTECTOR

FAN MOTOR
CAPACITOR

2

WHITE

PURPLE

FAN
MOTOR
CAPACITOR

RED

RED

MAIN RELAY

TERMINAL

TO
POWER
SUPPLY

BLACK
RED

WHITE

6 1

BACK

NEXT

6.1.2 AU18/AO18, AU25/AO25 (Outside power supply)

<APPLICATION MODELS>

AUY18ASD/AOY18AWDL
AUY25ASD/AOY25AWDL

THERMISTOR

(PIPE TEMP)

JET VANE
MOTOR

FAN

MOTOR

DISPLAY UNIT

DRAIN PUMP

MOTOR

M

M

BLACK

YELLOW

1 2

BLACK

YELLOW

1 2

CN.2

BLACK BLACK

1

CN.10

GRAY

GRAY

2

BLUE

PURPLE

BLACK

WHITE

PINK

123456

CN.5

WHITE

BROWN

RED

ORANGE

BLUE

HA

GREEN

1234

CN.18 CN.8 CN.17

1 2

123456789

YELLOW

GREEN

BLUE

WHITE

PURPLE

GRAY

10 11 12

BLACK

YELLOW

1 2

YELLOW

1 2

CN.3

PRINTED CIRCUIT BOARD

CN.16 CN.1 CN.15 CN.19 CN.9 CN.7 CN.6 CN.4

2

1

RED

RED

MAIN RELAY

BLACK

RED

2

1

BLACK

BLACK

2

1 3

(N)

2 3

BROWN

BROWN

2 3

1

FLOAT SWITCH

TERMINAL

1

TEST

2 3

THERMISTOR
(ROOM TEMP)

2

1

BLACK

BLACK

RED

RED

TRANSFORMER

1 21 21

PURPLE

PURPLE

1 2

WHITE

FAN MOTOR
CAPACITOR

RED

WHITE

INTERNAL
OVERLOAD
PROTECTOR

S

COMPRESSOR
CAPACITOR

C

RED

BLACK

COMPRESSOR

THERMAL
PROTECTOR

R

WHITE

YELLOW/GREEN

BLUE

FAN MOTOR

FAN MOTOR
CAPACITOR

OUTDOOR
THERMOSTAT

H

RED

L

CR COMPOSITE

WHITE

WHITE

C

BLACK

WHITE

WHITE

BLUE

1

)

2

N

(

3

5A

FUSE

LN

TERMINAL

TO POWER SUPPLY

BACK

NEXT

6.1.3 AU25(3) / AO25(3) (Low ambient cooling model)

<APPLICATION MODELS>

AUY25ASC3/AOY25ACA3L
AUY25ASD3/AOY25ACD3L

DISPLAY UNIT

WHITE

BLUE

GREEN

HA

2

1234 56

CN.18

CN.16

1

2

RED

RED

1

CN.8 CN.17 CN.3 CN.2 CN.10 CN.5

BLACK
RED

MAIN RELAY

BROWN

RED

2

1

34

CN.1

1

2

BLACK

BLACK

2

13

(N)

ORANGE

DRAIN PUMP

YELLOW

GREEN

BLUE

PURPLE

78

WHITE

GRAY

101112

9

MOTOR

BLACK

M

YELLOW

YELLOW

1

2

YELLOW

YELLOW

1

2

JET VANE

MOTOR

BLACK

BLACK

PRINTED CIRCUIT BOARD

CN.15

1

2

BROWN

1

2

FLOAT SWITCH

TERMINAL

3

1

BROWN

3

CN.19

3

2

TEST

THERMISTOR
(ROOM TEMP)

CN.9 CN.7

1

2

BLACK

BLACK

THERMISTOR

(PIPE TEMP)

M

BLACK

1

2

GRAY

BLACK

2

1

RED

1

2

RED

1

TRANSFORMER

GRAY

BLUE

2

123456

CN.6

1

PURPLE

FAN
MOTOR

PINK

PURPLE

BLACK

WHITE

CN.4

1

2

WHITE

PURPLE

FAN MOTOR
CAPACITOR

RED

2

WHITE

FAN MOTOR
CAPACITOR

BLACK

FAN
MOTOR

GREEN/YELLOW

1

WHITE

WHITE

RED
BLUE

CR COMPOSITE

2

3

(N)

RED

NTSR

BLUE

WHITE

BLACK

HEATER

CRANKCASE

CR COMPOSITE

BLACK

OVER CURRENT

RELAY

CONNECTOR

WHITE

BA32

31 5 3 1

WHITE

C

BLACK

RED

BLACK

RED

S

TO POWER
SUPPLY

WHITE

246

RELAY

MAGNETIC

WHITE

R

COMPRESSOR

WHITE

C

L

H

OUTDOOR THERMOSTAT

BACK

NEXT

6.1.4 AU18R / AO18R, AU25R / AO25R

<APPLICATION MODELS>

AUT18RLC/AOT18RWBL
AUT25RLC/AOT25RWDL
AUY18RLC/AOY18RWBL

AUY18RLD/AOY18RWDL
AUY25RLC/AOY25RWDL
AUY25RLD/AOY25RWDL

GREEN

HA

1234

CN.13 CN.3 CN.2 CN.10 CN.9 CN.5

DRAIN PUMP

MOTOR

M

YELLOW

YELLOW

1 2

YELLOW

YELLOW

1 2

JET VANE

MOTOR

1 2

BLACK BLACK

1 2

THERMISTOR

(PIPE TEMP)

M

BLACKBLACK

GRAY

1

THERMISTOR

(ROOM TEMP)

GRAY

2

BLACK

BLACK

1

2

FAN

MOTOR

BLACK

WHITE

PINK

RED

BLUE

PURPLE

123456

PRINTED CIRCUIT BOARD

CN.8

2 3

1

RED

WHITE

BLACK

2 3

1

TERMINAL

RED

WHITE

BLACK

CN.1

2 3

1

RED

WHITE

BLACK

2

1 3

(N)

TERMINAL

REMOTE
CONTROL

FAN

TRANSFORMER

MOTOR

PURPLE

BLUE

RED

WHITE

BLACK

4321

CN.5 CN.2 CN.3 CN.4 CN.1 CN.9 CN.15

PURPLE

2 1 2 1

CN.11 CN.7CN.12 CN.6 CN.4

2 3

2 3

1

1234

TEST

BROWN

BROWN

2 3

1

RED

RED

FLOAT SWITCH

TRANSFORMER

2

13NL

(N)

THERMAL

BLUE

WHITE WHITE
BLACK

WHITE

SOLENOID

COIL

BLACK

2 1 2 12 1

SV

BLACK

BLACK

RED

RED

FAN MOTOR

CAPACITOR

WHITE

WHITE

RED

WHITE

3 4

1

1 21

BLUE

BLUE

PURPLE

TO POWER SUPPLY

COMPRESSOR

CAPACITOR

COM

NO

RED

RED

1 2

WHITE

PURPLE

WHITE

FAN MOTOR
CAPACITOR

POWER RELAY

BLACK

OVERLOAD
PROTECTOR

RED

COMPRESSOR

CN.13 CN.12 CN.11

2 1 2 1 2 1

RED, BROWN

RED, BROWN

THERMISTOR
(DISCHARGE TEMP)

PRINTED CIRCUIT BOARD

BLACK

BLACK

THERMISTOR
(OUTDOOR TEMP)

GRAY

GRAY

THERMISTOR
(PIPE TEMP)

GREEN

CN.10

2 1

3

TEST

BACK

NEXT

6.1.5 AU30 / AO30 (Low ambient cooling model)

<APPLICATION MODELS>

AUY30ASC/AOY30ABAL

THERMISTOR

(PIPE TEMP)

JET VANE
MOTOR

FAN

MOTOR

DISPLAY UNIT

DRAIN PUMP

MOTOR

M

M

BLACK

BLACK

YELLOW

YELLOW

HA

GREEN

1234

CN.18

BROWN

BLUE

WHITE

1 2

123456789

CN.8 CN.17 CN.3 CN.2 CN.10 CN.5

RED

ORANGE

GREEN

YELLOW

BLUE

WHITE

PURPLE

GRAY

10

BLACK

11 12

YELLOW

1 2

1 2

1 2

BLACK

YELLOW

1 2

GRAY

BLACK

1

BLUE

GRAY

2

PURPLE

123456

WHITE

PRINTED CIRCUIT BOARD

CN.16 CN.1 CN.15 CN.19 CN.9 CN.7 CN.6 CN.4

2

1

RED

RED

MAIN RELAY

BLACK
RED

2

1

BLACK

BLACK

2

1 3

(N)

2 3

BROWN

BROWN

2 3

1

FLOAT SWITCH

TERMINAL

1

TEST

2 3

THERMISTOR
(ROOM TEMP)

2

1

BLACK

BLACK

RED

RED

TRANSFORMER

1 21 21

PURPLE

PURPLE

FAN MOTOR
CAPACITOR

PINK

BLACK

1 2

WHITE

RED

WHITE

FAN
CAPACITOR

WHITE
BLACK

THERMAL

FAN MOTOR (LOWER)

FAN
CAPACITOR

FAN MOTOR (UPPER)

PROTECTOR

WHITE

BLACK

THERMAL
PROTECTOR

CONNECTOR

CONNECTOR

WHITE

BLUE

WHITE

RED

TERMINAL

BLACK

5A

FUSE

WHITE

C

RED

L

H

C

H

2

13LL

(N)

WHITE

RED

BLACK

OUTDOOR

THERMOSTAT

BLUE

THERMOSTAT

OUTDOOR

WHITE
RED

PURPLE

(LOWER)

(UPPER)

COMPRESSOR

N

TERMINAL

COMPRESSOR

CAPACITOR

WHITE

WHITE

C

YELLOW/GREEN

BLACK

BLACK

BROWN

RED

SR

INTERNAL
OVERLORD
PROTECTOR

BLACK

TO POWER SUPPLY

86

RELAY

4

7

BLUE

MAIN RELAY

WHITE

YELLOW

455

BROWN

1123

6

HEATER

CRANKCASE

BACK

NEXT

6.1.6 AU30R / AO30R

<APPLICATION MODELS>

AUY30RLC/AOY30RBFL

DRAIN PUMP

MOTOR

M

YELLOW

1 2

GREEN

HA

1234

CN.13 CN.3 CN.2 CN.10 CN.9 CN.5

CN.8

2 3

1

RED

WHITE

BLACK

2 3

1

TERMINAL

RED

WHITE

TERMINAL

BLACK

REMOTE
CONTROL

CN.1

2 3

1

RED

WHITE

2

1 3

(N)

YELLOW

1 2

BLACK

FLOAT SWITCH

THERMISTOR

(PIPE TEMP)

JET VANE

MOTOR

THERMISTOR

(ROOM TEMP)

FAN

FAN

MOTOR

MOTOR

M

YELLOW

BLACKBLACK

1 2

BLACK

YELLOW

BLACK BLACK

1 2

GRAY

GRAY

1

2 123456

1

BLACK

2

BLUE

PURPLE

WHITE

PRINTED CIRCUIT BOARD

CN.11 CN.7CN.12 CN.6 CN.4

2 3

BROWN

2 3

1

BROWN

1

TEST

2 3

1234

BLUE

BLUE

RED

RED

TRANSFORMER

1 21

PURPLE

PURPLE

FAN MOTOR

CAPACITOR

PINK

BLACK

RED

1 2

WHITE

WHITE

CONNECTOR

1

BLACK

2

SV

BLACK

BLACK
BLACK

RED
RED

PURPLE
PURPLE

BELT

HEATER

COIL

SOLENOID

TRANSFORMER

THERMISTOR
(DISCHARGE TEMP)

RED
RED

THERMISTOR
(OUTDOOR TEMP)

BLACK
BLACK

THERMISTOR
(PIPE TEMP)

GRAY
GRAY

1
2

1
2

1
2

1
2

1
2

1
2

1
2

1
2
3
4

TEST

GREEN

CN.8

1
2
3

CN.1

4

1

CN.3

2

CN.15CN.6 CN.4

1
2

CN.2CN.10 CN.9

1
2

CN.13

PRINTED CIRCUIT BOARD

1
2

CN.12

3

CN.5

4

CN.11

1
2
3

CN.7

4

RED

WHITE

BLACK

RED
RED

WHITE
WHITE

FAN MOTOR
CAPACITOR (UPPER)

WHITE
WHITE

FAN MOTOR
CAPACITOR (LOWER)

THERMAL PROTECTOR

CONNECTOR

BLUE
RED
WHITE
BLACK

CONNECTOR

BLUE
RED
WHITE
BLACK

1
3
6
4

1
3
6
4

THERMAL\ PROTECTOR

TO POWER SUPPLY

2

113

BLACK

4

5

6

RELAY

POWER

(N)

N

WHITE

BLUE

THERMAL

L

YELLOW/GREEN

COMPRESSOR CAPACITOR

WHITE

R

WHITE

RED

S

COMPRESSOR

C

INTERNAL

(LOWER)

FAN MOTOR

(UPPER)

FAN MOTOR

BLACK

OVERLOAD
PROTECTOR

BACK

NEXT

6.1.7 AU36 / AO36, AU45 / AO45 (50Hz)

<APPLICATION MODELS>

AUT36ASC3/AOT36ACA3
AUT45ASC3/AOT45ACA3

THERMISTOR

(PIPE TEMP)

JET VANE
MOTOR

FAN

MOTOR

DISPLAY UNIT

DRAIN PUMP

MOTOR

M

M

BLACK

YELLOW

GREEN

1234

CN.18

HA

YELLOW

1 2

WHITE

BLUE

1 2

CN.8 CN.17 CN.3 CN.2 CN.10 CN.5

YELLOW

ORANGE

BROWN

RED

3456789

12

GREEN

BLUE

WHITE

PURPLE

GRAY

10

BLACK

11 12

YELLOW

1 2

1 2

BLACK

YELLOW

1 2

GRAY

BLACK BLACK

1

BLUE

GRAY

2

PURPLE

123456

BLACK

WHITE

PRINTED CIRCUIT BOARD

CN.16 CN.1 CN.15 CN.19 CN.9 CN.7 CN.6 CN.4

2

1

RED

RED

MAIN RELAY

BLACK

RED

2

1

BLACK

BLACK

2

1 3

(N)

2 3

BROWN

BROWN

2 3

1

FLOAT SWITCH

TERMINAL

1

TEST

2 3

THERMISTOR
(ROOM TEMP)

2

1

BLACK

BLACK

1 21 21

RED

RED

PURPLE

TRANSFORMER

PURPLE

FAN MOTOR
CAPACITOR

RED

PINK

1 2

WHITE

WHITE

BLACK

5A

FUSE

BLACK

WHITE

THERMOSTAT

(DISCHARGE PIPE)

2

(N)

BLUE

BROWN

NT

GRAY

13

CR COMPOSITE

INTERNAL
OVERLOAD
PROTECTOR

TO POWER SUPPLY

TERMINAL

R

S

YELLOW/GREEN

BLACK

RED

T3

T2

RED

WHITE WHITE

T1

B131

A

32 23456

COMPRESSOR

BLUE

FAN
CAPACITOR

MAGNETIC RELAY

BLACK

BLACK

WHITE

WHITE

FAN MOTOR

(LOWER)

BLACK

RED

WHITE

FAN

CAPACITOR

BLACK

CONNECTOR

THERMAL
PROTECTOR

FAN MOTOR

C

H

L

RED

WHITE

(UPPER)

OUTDOOR

THERMOSTAT

CONNECTOR

BACK

NEXT

6.1.8 AU36/AO36, AU45/AO45 (50Hz) (Low ambient cooling model)

<APPLICATION MODELS>

AUY36ASC3/AOY36ACA3L
AUY45ASC3/AOY45ACA3L

THERMISTOR

(PIPE TEMP)

JET VANE
MOTOR

FAN

MOTOR

DISPLAY UNIT

DRAIN PUMP

MOTOR

M

M

BLACK

BLACK

YELLOW

GREEN

1234

CN.18

HA

WHITE

BLUE

1 2

CN.8 CN.17

YELLOW

ORANGE

GREEN

BROWN

RED

BLUE

123456789

WHITE

PURPLE

GRAY

10

BLACK

11 12

YELLOW

1 2

YELLOW

1 2

CN.3

1 2

GRAY

GRAY

BLACK

BLACK

YELLOW

1 2

CN.2 CN.10 CN.5

1

2

BLUE

PURPLE

WHITE

123456

PRINTED CIRCUIT BOARD

CN.16 CN.1 CN.15 CN.19 CN.9 CN.7 CN.6 CN.4

2

1

RED

RED

MAIN RELAY

BLACK

RED

2

1

BLACK

BLACK

2

1 3

(N)

2 3

BROWN

BROWN

2 3

1

FLOAT SWITCH

TERMINAL

1

TEST

2 3

THERMISTOR
(ROOM TEMP)

2

1

BLACK

BLACK

1 21 21

RED

RED

PURPLE

TRANSFORMER

PURPLE

FAN MOTOR
CAPACITOR

PINK

BLACK

1 2

WHITE

RED

WHITE

BLACK

WHITE

WHITE

THERMOSTAT

(DISCHARGE PIPE)

2

13

(N)

BLUE

GRAY

BROWN

HEATER

CRANKCASE

CR COMPOSITE

BLUE

INTERNAL
OVERLOAD
PROTECTOR

TO POWER SUPPLY

S

NT

R

B131

5

A

32 234

RED

T3

COMPRESSOR

TERMINAL

YELLOW/GREEN

WHITE

RED

6

T2

BLACK

WHITE

T1

FUSE

5A

BLUE

BLUE

FAN
CAPACITOR

MAGNETIC RELAY

BLACK

BLACK

WHITE

WHITE

FAN MOTOR

(LOWER)

BLACK

RED

TERMINAL

WHITE

FAN
CAPACITOR

BLACK

CONNECTOR

THERMAL
PROTECTOR

FAN MOTOR

C

LH

RED

WHITE

(UPPER)

OUTDOOR

THERMOSTAT

CONNECTOR

BACK

NEXT

6.1.9 AU36R / AO36R, AU45R / AO45R (50Hz)

<APPLICATION MODELS>

AUT36RLC3/AOT36RCB3L
AUT45RLC3/AOT45RCB3L
AUY36RLC3/AOY36RCB3L
AUY45RLC3/AOY45RCB3L

DRAIN PUMP

MOTOR

M

YELLOW

1 2

GREEN

HA

1234

CN.13 CN.3 CN.2 CN.10 CN.9 CN.5

CN.8

2 3

1

REDRED

WHITE

BLACK

2 3

1

TERMINAL

WHITE

TERMINAL

BLACK

CN.1

2 3

1

RED

WHITE

2

1 3

(N)

YELLOW

1 2

BLACK

FLOAT SWITCH

JET VANE

MOTOR

M

YELLOW

1 2

YELLOW

BLACK BLACK

1 2

PRINTED CIRCUIT BOARD

CN.11 CN.7CN.12 CN.6 CN.4

2 3

BROWN

BROWN

2 3

1

THERMISTOR

(PIPE TEMP)

BLACKBLACK

2 3

1

TEST

GRAY

1

2

THERMISTOR

(ROOM TEMP)

GRAY

1234

RED

BLACK

1

2

RED

BLUE

BLACK

BLUE

FAN

FAN

MOTOR
MOTOR

BLUE

PURPLE

BLACK

WHITE

123456

1 21

PURPLE

PURPLE

RED

PINK

1 2

WHITE

WHITE

REMOTE
CONTROL

CONNECTOR

1

BLACK

2

SV

BLACK

BLACK
BLACK

RED
RED

PURPLE
PURPLE

BELT

HEATER

COIL

SOLENOID

TRANSFORMER

THERMISTOR
(DISCHARGE TEMP)

RED
RED

THERMISTOR
(OUTDOOR TEMP)

BLACK
BLACK

THERMISTOR
(PIPE TEMP)

GRAY
GRAY

1
2

1
2

1
2

1
2

1
2

1
2

1
2

1
2
3

TEST

4

GREEN

CN.8

1
2
3

CN.1

4

1

CN.3

2

CN.15CN.6 CN.4

1
2

CN.2CN.10 CN.9

1
2

CN.13

PRINTED CIRCUIT BOARD

1
2

CN.12

3

CN.5

4

CN.11

1
2
3

CN.7

4

RED

WHITE

BLACK

RED
RED

WHITE

WHITE

FAN MOTOR
CAPACITOR (LOWER)

WHITE
WHITE

FAN MOTOR
CAPACITOR (UPPER)

CONNECTOR

1

BLUE

3

RED

6

WHITE

4

BLACK

CONNECTOR

BLUE
RED
WHITE
BLACK

1
3
6
4

THERMAL PROTECTOR

THERMAL PROTECTOR

TRANSFORMER

FAN MOTOR

CAPACITOR

TO POWER SUPPLY

2

113

(N)

WHITE

WHITE

4

5

6

RELAY

POWER

CR COMPOSITE

BLACK

INTERNAL

N

BLUE

GRAY

B

A

T3

TSR

REDRED

56341

T2

COMPRESSOR

TERMINAL

GREEN/YELLOW

2

MAGNETIC RELAY

BLACK BLACK

WHITE WHITE

T1

OVERLOAD
PROTECTOR

(LOWER)

FAN MOTOR

(UPPER)

FAN MOTOR

BACK

NEXT

6.2 INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM

6.2.1 AU18, 25 (Inside power supply)

<APPLICATION MODELS>

AUY18ASC
AUY25ASC
AUT25ASC

POWERSWITCH
SW301

TO
POWER
SUPPLY

TO OUT DOOR UNIT

SWITCH PWB

CN301-2

CN301-1

CN301

JC-25-02HG

(L)

SECONDARY

THERMAL FUSE

PRIMARY

UL1015
AWG22
(VIOLET)

M

LOUVER

M

DRAIN
PUMP

FAN
CAPACITOR

FM

FAN
MOTOR

UL1015 AWG20 (BLACK)
UL1015 AWG20 (BLACK)

ELP-02V

)

UL 1430 AWG22 CN7-2

UL 1430 AWG22

(YELLOW)

UL1015
AWG22
UL1015
AWG22

(YELLOW)

ELR-02V

)

UL 1007 AWG22

UL 1007 AWG22

(RED)

POWER TRANSFORMER

EZ-046HSE-T

UL1015
AWG22
(VIOLET)

(GREEN)

UL1015 AWG16

1

2

ELP-02V

1

2

ELP-02V

UL1015 AWG20
(WHITE)

(WHITE)
UL1015 AWG20

(BLACK)
UL1015 AWG22

(WHITE)
UL1015 AWG22
(BLUE)
UL1015 AWG22
(VIOLET)
UL1015 AWG22

(PINK)
UL1015 AWG22

(RED)
UL1015 AWG22

TERMINAL

(RED)

ELP-02V

ELR-02V

L
N

1

)

N

2

(BLACK)
UL1015
AWG22
UL1015
AWG22
(YELLOW)

(YELLOW)

UL1015
AWG22
UL1015
AWG22

(YELLOW)

)

B4B-XH-AM

CN18-3

JEM-A

HA

CN18

53405-0210

CN8-2

CN8

D2SB20

C5

VA1

<TNR12G>

K4
JQ1-12V

K5
JQ1-12V

K2
JQ1-12V

MAIN RELAY

JM1AN-ZTM-DC12V

D1

+

2200/50V

470

<TNR12G>

VA2
470

R1

K1
JQ1-12V

5.6K

C1

<1/4W>

UL1430 AWG24

CN18-1
CN18-4
CN18-2

R2

5.6K
<1/4W>

C3

4700P

<F>

C2

0.1 <PA>

4700P

<F>

(RED) CN16-1

UL1430
AWG24

CN16-2
(RED)

(WHITE)

(BLUE)

CN8-1

CN7-1

CN7

D2B-XH-AM

CN6

CN6-1

B2P3-VH-B-R

CN6-2

BET

CN1-2

F1

3.15A

<250V>

CN1
53406-9910

CN1-1

SA1

3600V

E

<DSA>

CN2-1

CR1

120/0.2

CN2

CN2-2

B2P3-VH-B

CN3-1

CR2

120/0.2

CN3

CN3-2

B2P3-VH-B-C
CN4

CN4-1

53331-0210

CN4-2

CN5-4
CN5-3

CN5-1

L

CN5-2

M

CN5-5

H

CN5-6

CN5
5430C063

RED

C6

10/50V

B2B-XASK-1-A

5V

FJ4

SYSTEM IF CHANGER

2SD1932

R3

10K

<1/4W>

+

D2

MTZJ15A

LF1

SU16VF

15030

SSR1

G3M-202P

<UTU>

<ZERO CROSS>

CN16

12V

Q1

+
–

9

11
8

10

12V

MCT7805CT

D3

1SR139

++

C7

10/25V

C4

0.1

<PA>

<1/4W>

IC7

HI0001

–
+

IC2 5V

C9

C8

0.1

<B2>

<F>

1000/25V

R4

10K

C11

0.01
<F>

12V

D4

1SR139

BLACK

DTC124ES

K1
K2

K4

K5

12V

5V

11

7

6

P25

64

13

AVREF

6

5

P24

12

43

RESET

2

1

SI1

VCC

DO

3

2

SO1

NC

DI

4

3

SCK1

NC

CK

CS

5

4

GND

CS

1

5V

63

AVDD

48

VDD

+

C30

C10

0.1

100/25V

<F>

17

VSS

32

VSS

54

AVSS

53

XT1

51

IC

46

P02

UPD78011BCW-143

47

CJ25

P03

5V

R18

R17

390

10K

<1/4W>

<1/4W>

Q2

12Y

11

12

13

14

15

10

16

8

16

D5

1SR139

13

14

15

9

<1/4W>

45

INTP1

C26

0.01
<F>

IC6 (7/7)
BA12003

30

IC5 (7/7)

BA12003

BA12003

P54

29

P53

28

P52

27

P51

26

P50

31

P55

25

P47

24

P46

21

P43

22

P44

23

P45

5V

R19

10K

<1/4W>

P35

14
13

P34

X1

50

3

X1

8.38MHZ
<EFO>

6

5

4

3

2

7

1

1

IC5 (3/7)

4

3

2

R20
10K

ARCL 14FS103J102J103M

7

13

P26

811

P27

99

P30

12 3

P33

11 5

P32

7

10

P31

44

INTPO

P42

P41

P40

P40

BUZ

XT2

42

P67

41

P66

40

P65

39

P64

38

P63

55

AN0

56

AN1

57

AN2

58

AN3

59

AN4

60

P15

61

P16

62

P17

37 3

P62

36

P61

35

P60

34

P57

33

P56

X2

49

1

2

20

19

18

16

15

52

IC5 (3/7)
BA12003

3
5
7
9

11

C20

<B>1000P

C21

<B>1000P

C22

<B>1000P

C23

<B>1000P

C24

<B>1000P

ARCL12FS103J102J103M

5
7
9

11

12

12V

512

7810

DTC124ES

RC3

RC2

Q5

<1/4W>

<1/4W>

<1/4W>

<1/4W>

<1/4W>

R9

10K

R10
10K

R11
10K

R12
10K

R15
10K

R21
10K

<1/4W>

C29

0.01
<F>

611

12

5V

2
4
6

5V

C28

10/25V

R22

47

<1/4W>

<1/4W>

R24

1.2K

<1.4W>

ARCL 12FS103J102J103M

+

C16

10/25V

+

C17

10/25V

OVER LOAD TEMP.
REVISED CHANGER

5V

1

1

12

COOL CHANGER

10

WALL CHANGER

8

OUTER CORRESPONDENCE CHANGER

C27

+

0.1

<F>

R23

1K

12V

5VRC4

R5

3.32K

<CRB20>

METAL.F

R6

10.5K

<CRB20>

METAL.F

R7

10K

<1/4W>

R8

10K

<1/4W>

<1/4W>

CUSTOM CODE CHANGER

2
4
6
8
10

Zoom
Zoom

CN17

B12B-XASK-1-A

UL1007 AWG28 (GREEN) CN201-5

CN17-5

UL1007 AWG28 (BLUE) CN201-6

CN17-6
CN17-7

UL1007 AWG28 (GRAY) CN201-8

CN17-9

UL1007 AWG28 (VIOLET) CN201-7

CN17-8

UL1007 AWG28 (WHITE) CN201-9

CN17-10

UL1007 AWG28 (RED) CN201-2

CN17-2

UL1007 AWG28 (ORANGE)CN201-3

CN17-3

UL1007 AWG28 (YELLOW)CN201-4

CN17-4

CN17-12

UL1007 AWG28 (BROWN)

CN17-1

UL1007 AWG28 (BLACK)CN201-10

CN17-11

1

2
4
6
8
10

C12

0.1

<F>
C13

0.1

<F>

R13
10K

<1/4W>

R14
10K

RC1

7
5
3

ARCL8FS103J102J103M

SW2

DSS803

NO3
NO2
NO1

FJ1
FJ2
FJ3

OVER LOAD TEMP.

REVISED CHANGER

CN201-1

51015-1000

CN201

NOTED

1. UNIT OF RESISTORS NOT SPECIFIED IN THE DRAWING SHALL
BE (

Ω

2. RESISTORS NOT SPECIFIED IN THE DRAWING SHALL BE
CARBON FILM RESISTOR

3. UNIT OF CAPACITORS NOT SPECIFIED IN THE DRAWING SHALL
BE (µ F)
BUT C2-C3 AND C20-C24 SHALL BE (F)

4. POLARITY CAPACITORS SHALL BE ALUMINUM FOIL
ELECTROLYTIC CAPACITOR.

5. NO POLARITY CAPACITORS SHALL BE CERAMIC CAPACITOR.
BUT C1-C4 SHALL BE PLASTIC CAPACITOR

6. METAL.F MEANS METAL FILM RESISTOR (ALLOWANCE

7. THE MARK OF IN THE DRAWING SHALL BE 187 FASTEN TUB

8. THE MARK OF IN THE DRAWING SHALL BE 250 FASTEN TUB

9. THE MARK OF IN THE DRAWING SHALL BE BOARD IN WIRE

5V

CN9

B2P-VH-B
CN9-2

CN9-1
B2P-VH-B-C

CN10

CN9-2
CN10-1

5V

1

6
4
2

CN15
B3B-XH-AM

CN15-3

CN15-2
CN15-1

CN19
B3P-SHF-1AA

CN19-1

TEST

CN19-2
CN19-3

Zoom
Zoom

SW303 EVQ-PAG-04KSWITCH PWB

COMPULISON
OPERATIONEZ-095JHSE-SW

CN302

JC25-03HG

(ST)

C202

C201

0.1
10/25V

<F>

R201
<1/4W>

1K

R202

820

<1/4W>
R203

1.2K

<1/4W>

BZ201
PKM13EPY
4000-TF01

DISPLAY PWB

EZ-095JHSE-D

)

(BLACK)
(BLACK)

(GRAY)
(GRAY)

UL1007 AWG22

(BROWN)

UL1007 AWG22

(BROWN)

ELR-03V

(WHITE)

(BLUE)

UL1430 AWG28

UL1430 AWG28

CN201-2 CN302-2

CN202-1 CN302-1

+

VCC

OUT

GND

PHA201

SBX1610-22

D201
SLR325<RED>

D202
SLR325<GRN>

D202
SLR325<ORG>

BZ

ROOM TEMP.TH

HEAT EXCHANGER TEMP. TH

ELP-03V

3

2
1

JSA1220-0301

NORMAL
OPERATION

(WHITE)

UL1430 AWG28

CN202-3 CN302-3

FLOAT SWITCH

SW302

AUTO
RESTART

(OPERATION)

(TIMER)

(LOUVER)

± 1 %)

BACK

NEXT

6.2.2 AU18, 25, 30, 36, 45

<APPLICATION MODELS>

AUY25ASC3
AUY25ASD3
AUY18ASD
AUY25ASD
AUY30ASC
AUY36ASC3
AUY45ASC3
AUT36ASC3
AUT45ASC3

POWERSWITCH

SW301

SWITCH PWB

CN301-2

CN301-1
JC-25-02HG

SECONDARY

THERMAL FUSE

PRIMARY

UL1015
AWG22
(VIOLET)

M

LOUVER

M

DRAIN
PUMP

FAN
CAPACITOR

FAN
MOTOR

UL1015 AWG20 (BLACK)
UL1015 AWG20 (BLACK)

TO OUTDOOR UNIT

CN301

(L)

FM

ELP-02V

ELR-02V

(YELLOW)

UL1015
AWG22

UL1015
AWG22

(YELLOW)

UL 1007 AWG22

UL 1007 AWG22

UL 1430 AWG22 CN7-2

UL 1430 AWG22

POWER TRANSFORMER

EZ-046HSE-T

UL1015
AWG22
(VIOLET)

1

2

1

2

UL1015 AWG20

(WHITE)

(WHITE)

UL1015 AWG20

(BLACK)

UL1015 AWG22

(WHITE)

UL1015 AWG22

(BLUE)

UL1015 AWG22

(VIOLET)

UL1015 AWG22

(PINK)

UL1015 AWG22

(RED)

UL1015 AWG22

(RED)

(RED)

(GREEN)

UL1015 AWG16

ELP-02V

ELP-02V

ELP-02V

ELR-02V

TERMINAL

3
2

1

CN6-1

CN6-2

CN1-2

CN1-1

(BLACK)
UL1015
AWG22

UL1015
AWG22
(YELLOW)

(YELLOW)

UL1015
AWG22

UL1015
AWG22

(YELLOW)

CN7-1

D2B-XH-AM

CN2-1

CN2-2

CN3-1

CN3-2

CN4-1

CN4-2

CN5-4
CN5-3

CN5-1

CN5-2

CN5-5

CN5-6

CN7

(WHITE)

(BLUE)

E

CN6
B2P3-VH-B-R

F1

3.15A

<250V>

CN1
53406-9910

3600V
<DSA>

120/0.2

CN2
B2P3-VH-B

120/0.2

CN3
B2P3-VH-B-C

CN4
53331-0210

L

M

H
CN5
5430C063

(BLACK)

(RED)

CN8-1

BET

SA1

CR1

CR2

53405-0210

CN8-2

CN8

D1

D2SB20

C5

2200/50V

470

VA1

VA2
470

<TNR12G>

K4
JQ1-12V

K5
JQ1-12V

K2
JQ1-12V

MAIN RELAY

JM1AN-ZTM-DC12V

JEM-A

CN18

+

R1

5.6K

<TNR12G>

K1
JQ1-12V

HA

<1/4W>

C1

0.1 <PA>

UL1430 AWG24

B4B-XH-AM

CN18-3

CN18-1
CN18-4
CN18-2

R2

5.6K
<1/4W>

C6

C3

4700P

<F>

C2

4700P

<F>

(RED) CN16-1

UL1430
AWG24

CN16-2
(RED)

SYSTEM IF CHANGER

+

10/50V

B2B-XASK-1-A

5V

FJ4

R3

10K

<1/4W>

D2

MTZJ15A

SU16VF

15030

G3M-202P

<ZERO CROSS>

CN16

2SD1932

LF1

SSR1

<UTU>

12V

Q1

9

11
8

10

12V

MCT7805CT

1SR139

++

C7

10/25V

C4

0.1

<PA>

+
–

Zoom
Zoom

DTC124ES

D4

5V

11

7

6

P25

64

13

AVREF

6

5

P24

12

43

RESET

2

1

SI1

VCC

DO

3

2

SO1

NC

DI

4

3

SCK1

NC

CK

CS

5

4

GND

CS

1

5V

63

AVDD

48

VDD

+

C30

C10

0.1

100/25V

<F>

17

VSS

32

VSS

54

AVSS

53

XT1

51

IC

46

P02

UPD78011BCW-143

47

CJ25

P03

5V

R17

R18

10K

390

<1/4W>

<1/4W>

45

INTP1

C26

1SR139

13

14

15

0.01
<F>

IC6 (7/7)

12Y

9

BA12003

30

IC5 (7/7)

IC5 (3/7)

BA12003

BA12003

5V

R19
10K

<1/4W>

8.38MHZ
<EFO>

P54

29

P53

28

P52

27

P51

26

P50

31

P55

25

P47

24

P46

21

P43

22

P44

23

P45

P35

14
13

P34

X1

50

3

X1

6

11

5

12

13

4

14

3

15

2

10

7

16

1

8

1

16

D5

4

3

2

R20
10K

<1/4W>

Q2

K1
K2

K4

K5

12V

ARCL 14FS103J102J103M

7

13

P26

811

P27

99

P30

12 3

P33

11 5

P32

10

7

P31

44

INTPO

P42

P41

P40

P40

BUZ

XT2

P67
P66
P65
P64
P63

AN0

AN1

AN2

AN3

AN4

P15
P16
P17

P62
P61
P60
P57
P56

X2

49

1

2

IC5 (3/7)

BA12003

20

19

18

16

15

52

42
41
40
39
38

55

56

57

58

59

60
61
62

37 3
36
35
34
33

12V

512

7810

3
5
7
9

11

C20

<B>1000P

C21

<B>1000P

C22

<B>1000P

C23

<B>1000P

C24

<B>1000P

RC3

ARCL12FS103J102J103M

5
7
9

11

12

DTC124ES

RC2

Q5

<1/4W>

<1/4W>

<1/4W>

<1/4W>

<1/4W>

R21
10K

<1/4W>

C29

0.01
<F>

12

R9

10K

R10
10K

R11
10K

R12
10K

R15
10K

C28

10/25V

<1/4W>

611

R24

1.2K

<1.4W>

ARCL 12FS103J102J103M

+

C16

10/25V

+

C17

10/25V

5V

1

5V

2
4
6

5V

R22

47

<1/4W>

OVER LOAD TEMP.

REVISED CHANGER

1

+

R23

1K

<CRB20>

METAL.F

<CRB20>

METAL.F

<1/4W>

<1/4W>

12
10
8

R5

3.32K

R6

10.5K

R7

10K

R8

10K

2
4
6
8
10

COOL CHANGER
WALL CHANGER

OUTER CORRESPONDENCE CHANGER

CN17

B12B-XASK-1-A

UL1007 AWG28 (GREEN) CN201-5

CN17-5

UL1007 AWG28 (BLUE) CN201-6

CN17-6
CN17-7

UL1007 AWG28 (GRAY) CN201-8

CN17-9

C27

0.1

<F>

CUSTOM CODE CHANGER

CN17-8
CN17-10

CN17-2

CN17-3

CN17-4

CN17-12

12V

CN17-1

CN17-11

5VRC4

1

C12

0.1

<F>
C13

0.1

<F>

R14
10K

<1/4W>

UL1007 AWG28 (VIOLET) CN201-7
UL1007 AWG28 (WHITE) CN201-9

UL1007 AWG28 (RED) CN201-2

UL1007 AWG28 (ORANGE)CN201-3

UL1007 AWG28 (YELLOW)CN201-4

UL1007 AWG28 (BROWN)

UL1007 AWG28 (BLACK) CN201-10

2
4
6
8
10

R13
10K

<1/4W>

RC1

7
5
3

ARCL8FS103J102J103M

SW2

DSS803

NO3
NO2
NO1

FJ1
FJ2
FJ3

OVER LOAD TEMP.

REVISED CHANGER

5V

5V

IC7

HI0001

–
+

IC2 5V

D3

<1/4W>

C9

C8

0.1

<B2>

<F>

1000/25V

R4
10K

C11

0.01
<F>

12V

1SR139

Zoom
Zoom

SW303 EVQ-PAG-04KSWITCH PWB

COMPULISON
OPERATIONEZ-095JHSE-SW

CN302

JC25-03HG

(ST)

C202

C201

0.1
10/25V

<F>

R201
<1/4W>

1K

R202

820

<1/4W>
R203

1.2K

<1/4W>

CN201-1

51015-1000

CN201

NOTED

1. UNIT OF RESISTORS NOT SPECIFIED IN THE DRAWING SHALL
BE ( )

2. RESISTORS NOT SPECIFIED IN THE DRAWING SHALL BE
CARBON FILM RESISTOR

3. UNIT OF CAPACITORS NOT SPECIFIED IN THE DRAWING SHALL
BE (
BUT C2-C3 AND C20-C24 SHALL BE (F)

4. POLARITY CAPACITORS SHALL BE ALUMINUM FOIL
ELECTROLYTIC CAPACITOR.

5. NO POLARITY CAPACITORS SHALL BE CERAMIC CAPACITOR.
BUT C1-C4 SHALL BE PLASTIC CAPACITOR

6. METAL.F MEANS METAL FILM RESISTOR (ALLOWANCE

7. THE MARK OF IN THE DRAWING SHALL BE 187 FASTEN TUB

8. THE MARK OF IN THE DRAWING SHALL BE 250 FASTEN TUB

9. THE MARK OF

CN9

B2P-VH-B
CN9-2

CN9-1
B2P-VH-B-C

CN10

CN9-2
CN10-1

1

6
4
2

CN15
B3B-XH-AM

CN15-3

CN15-2
CN15-1

CN19

B3P-SHF-1AA
CN19-1
CN19-2
CN19-3

PKM13EPY
4000-TF01

Ω

µ

F)

IN THE DRAWING SHALL BE BOARD IN WIRE

(BLACK)
(BLACK)

(GRAY)
(GRAY)

UL1007 AWG22

(BROWN)

UL1007 AWG22

(BROWN)

TEST

BZ201

DISPLAY PWB

EZ-095JHSE-D

ELR-03V

(WHITE)

(BLUE)

(WHITE)

UL1430 AWG28

UL1430 AWG28

UL1430 AWG28

CN201-2 CN302-2

CN202-1 CN302-1

+

VCC

OUT

GND

PHA201

SBX1610-22

D201
SLR325<RED>

D202
SLR325<GRN>

D202
SLR325<ORG>

BZ

ROOM TEMP.TH

HEAT EXCHANGER TEMP. TH

ELP-03V

3

2
1

SW302

JSA1220-0301

NORMAL
OPERATION

CN202-3 CN302-3

FLOAT SWITCH

AUTO
RESTART

(OPERATION)

(TIMER)

(LOUVER)

± 1 %)

BACK

NEXT

6.2.3 AU18R, 25R, 30R, 36R, 45R

<APPLICATION MODELS>

(

S1VB20

R2

BLACK

(

4700P

4700P

WHITE

1SS133

D4

MCT7812CT

C10

2200/35V

<1/4W>

5.6K

+

<1/4W>

C6

10/50V

MTZJ15A

VA3
470

<TNR12G>

C3

<F>

C2
<F>

LF1

SU16VF

15030

CN8-1

(

RED

)

)

CN8-3

CN8-2

)

CN8

53405-0310

AUY30RLC
AUY36RLC3
AUY45RLC3
AUY18RLC
AUY25RLC
AUY18RLD
AUY25RLD
AUT36RLC3
AUT45RLC3
AUT18RLC
AUT25RLC

SECONDARY

THERMAL FUSE

UL1015
AWG22
(VIOLET)

FAN
CAPACITOR

TO OUTDOOR UNIT

UL 1430 AWG22

UL 1430 AWG22

POWER TRANSFORMER

EZ-09503HSE-T

PRIMARY

UL1015
AWG22
(VIOLET)

CN1-1

CN1-3

CN1-2

UL1015 AWG22

LOUVER

M

UL1015 AWG22
UL1015 AWG22

DRAIN

M

UL1015 AWG22

UL1015 AWG20

FM

FAN
MOTOR

UL1015 AWG20 (WHITE)
UL1015 AWG20 (BLACK)

UL1015 AWG20 (RED)

(BLUE)

(BLUE)

(

RED

(

RED

FH1

CN1
53406-9210

(GREEN)

UL1015 AWG16

(BLACK)
UL1015
AWG22

UL1015
AWG22

(YELLOW)
UL1015
AWG22

UL1015
AWG22

(WHITE)

(WHITE)
UL1015 AWG20

(BLACK)
UL1015 AWG22

(WHITE)
UL1015 AWG22

(BLUE)
UL1015 AWG22

(VIOLET)
UL1015 AWG22

(PINK)
UL1015 AWG22

(RED)
UL1015 AWG22

TERMINAL

S1

1

(N)

2

(L)

3

CN7-4UL 1430 AWG22

CN7-3UL 1430 AWG22

CN7-2

)

)

3.15A

<250V>

(BLACK)

(YELLOW)

CN7-1

CN6-1

CN6-2

BET

F1

CN2-1

CN2-2
CN3-1

CN3-2
CN4-1

CN4-2

CN5-4
CN5-3
CN5-1

CN5-2

CN5-5

CN5-6

CN7

B4B-XH-AM

FH2

E

CN2
B2P3-VH-B

B2P3-VH-B-C

CN3

CN4
53331-0210

SL

L

M

H
CN5
5430C063

CN6
B2P3-VH-B-R

3600V

<DSA>

VA1

SA1

120/0.2

120/0.2

CR1

CR2

470

<TNR12G>

REMOTE

CONTROL

UNIT

D2SB20

C5

C1

VA2
470

<TNR12G>

K4
JQ1-12V

K5
JQ1-12V

K3
JQ1-12V

K2
JQ1-12V

EZ-09503HSE-R

D1

+

R1

2200/50V

0.1 <PA>

K1
JQ1-12V

1
3
2

5.6K

<1/4W>

D5

IC3

Q1

2SD880

R3
1K

D2

C4

0.1

<PA>

12V

C11

10/25V

13V

D3

1SR139

++++

C7

10/25V

18

14

10

G3M-202P

<ZERO CROSS>

W2W1

CN16-1

CN16-2

L2

L3

L4

EXCEMT103DT(L2-L4)

SSR1

<UTU>

B2B-XASK-1-A

12V

IC2 5V

MCT7805CT

C8

2200/25V

+
–

CN16

12V

10K

R12

<1/4W>

Zoom
Zoom

1

P20

2

P21

3

P22

4

P23

10

P31

11

P32

12

P33

13

P34

14

P35

15

BUZ

16

P37

18

DTC124ES

<1/4W>

BA12003

P40

63

AVDD

48

VDD

C13

0.1
<F>

17

VSS

32

VSS

54

AVSS

53

XT1

Q2

46

P02

47

P03

CJ16

0.01
<F>

UPD78012FCW-017

R5

390

45

INTP1

C15

0.01
<F>

30

P54

29

P53

28

P52

27

P51

26

P50

31

P55

51

IC

58

AN3

21

P43

10K

R11

<1/4W>

44

INTPO

20

P42

X1 X2

50

1

X1

8.38MHZ
<EFO>

5V

+

C12

HI2002

13V

3

+
–

24

IC4

D12

13V

1SR139

IC7(1/2)

BA10358

8

1

<1/4W>

<1/4W>

Q3

DTC124ES

K1
K2

K3

K4

K5

D11

R9

4.7K

R13

390

5V

4

1SR139

100/25V

11

12

13

14

15

10

13

14 3

1

5

2

3

<1/4W>

R4

10K

<1/4W>

13Y

9

6

5

4

3

2

7

8

4

5V 5V

10K

R10

Q4

Q5

2SC1815

IC6(1/7)

BA12003

R6

10K

5V

IC5 (6/7)
BA12003

IC6 (1/7)

<1/4W>

2SC1815

C9

0.1

<B2>

<F>

C14

0.01
<F>

W3

W4

13V

12V

R7

15.4K

12V

<CRB20>

R8

28.0K
<CRB20>

D6

1SS133

D7

1SS133

55

AN0

AN1

AN2

P17

P46

P45

P47

P16
P15
XT2
P44

P41

P67
P66
P65
P64
P56

P62
P61
P60
P57
P63

P24

P25
P26
P27
P30

AN4

AVREF

RESET

49

2

C19

<B>1000P

56

C22

<B>1000P

57

C30

<B>1000P

62

C26

0.01
<F>

13V

IC6(3/7)
BA12003

24

23

25

61
60
52
22

19

42
41

40
39
33

37
36
35
34
38

5

6
7
8
9

59

64

43

3

<1/4W>

C17
<F>

1000P

R14
10K

0.1

11

9
7
5
3

5
7
9

11

3

12

3
5
7
9

11

12

C25
<B>

C27

0.01
<F>

7

8

RC1

ARCL 12FS103J102J103M

12

RC2

ARCL 12FS103J102J103M

RC2

ARCL 12FS103J102J103M

10K<1/4W>

IC7(1/2)

BA10358

7

5V

1SS133

<1/4W>

R21

–
+

D10

9

6
5

<1/4W>

<1/4W>

<1/4W>

R22

1K

116

10

R15

1K

R17

1K

R27

1K

5V

512

5V

5V

5V

R24

22.1K

<CRB20>

R25

33.2K

<CRB20>

IC8

+

C20

10/25V

+

C23

10/25V

1

1

1

5V

C18

PST

0.1

600D

<F>

R16

3.32K

<CRB20>

R18

10.5K

<CRB20>

R26
10K

<1/4W>

10
8
6
4
2

4
6
8
10
2

2
4
6
8
10

C21

0.1

<F>
C24

0.1

<F>

1
2
4
8

DRS4016-5

DSS804
1
2
4
8

5V

R19
10K

<1/4W>

R20
10K

<1/4W>

<1/4W>

SW2

SW1

R23
10K

Q6

DTC124ES

FJ1
FJ2
FJ3

5V

C

NO1
NO2
NO3
NO4

Zoom
Zoom

5V

CN9

CN10

CN11

13V

R28

5V

390

<1/4W>

B4B-XH-AM

B2P-VH-B

(

BLACK

)

CN9-1

(

BLACK

)

CN9-2
B2P-VH-B-C

(

GRAY

)

CN10-1
CN10-2

(

GRAY

)

B3B-XH-AM

(

BROWN

)

CN11-1
CN11-2

CN11-3

(

BROWN

)

CN18
CN18-1

CN18-2
CN17

CN17-1
CN17-2
CN14
CN14-1
CN14-2

CN12

B3P-SHF-1AA
CN12-1

TEST

CN12-2
CN12-3

CN13-2

CN13-3
CN-13-4 CN13

HA
CN13-1 JEM-A

FJ1: COOLING SWITCHING
FJ2: WALL MOUNT SWITCHING
FJ3: REMOTE CONTROL SELECTOR

ROOM TEMP.THERMISTOR

PIPE TEMP.THERMISTOR

FLOAT SWITCH

BACK

NEXT

6.3 OUTDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM

6.3.1 AO18R, 25R

<APPLICATION MODELS>

UL1430 AWG22

(

RED

)

(

RED

PRIMARY

(

PURPLE

)

(

BLACK

)

WHITE

(

4WV

UL1015 AWG20
UL1015 AWG20

UL1015 AWG20

(BLUE)

(WHITE)

TO INDOOR UNIT

(

RED

4WV

(

)

WHITE

UL1430 AWG22

UL1015
AWG22

)

AOY18RWDL
AOT18RWBL
AOY25RWDL
AOY18RWBL
AOT25RWDL

SECONDARY

UL1015
AWG22

TO
POWER
SUPPLY

)

EZ-095HHSE-T

(

PURPLE

)

CN1
53406-9110

GREEN

UL1015 AWG16

CN8
179844-2 RED

(

BLACK

BLACK

(

)

COMPRESSOR
CAPACITOR

L
N
3
2
1

CN3-2

CN3-1

CN2-2

CN2-1

CN1-4

CN1-3

CN1-2

CN1-1

CN8-1

CN8-2

CN9-1

)

CN9-2

)

(

RED

WHITE

)

(

CN3

B2B-XH-AM

CN2

B2P3-VH-B-R

FH1 FH2

<250V>

E

CN8
179844-2 RED

CN9 179844-1

SC

COMP

)

R

(BLACK)

BET

F1

3.15A

120 0.2

POWER RELAY

(BLACK)

JM1oN-ZTM-DC12V

CR3

D1

D2SB20

C5

2200 50V

<TNR12G>

CAPA,1

R1

5.6

VA1
470

<PA>

<TNR12G>

(

BLACK

)

(

WHITE

FM

R2

<1 4W>

C1

0.1

VA4

470

K6
JQ1-12V

K1
JQ1-12V

(

RED

(

RED

)

CN6
53331-0210

CN7
B4P7-VH-B-RRED

5.6
<1 4W>

4700P

<F>

4700P

<F>

)

)

(

WHITE

UL1015 AWG20

(

WHITE

UL1015 AWG20

UL1015 AWG22

UL1015 AWG22

C6

10 25V

C3

C2

SA1

3600V

<DSA>

CN-4
53331-0210
)

)

UL1015 AWG22

(BLUE)

UL1015 AWG22

CN15-1
CN15-2

CN4-1

CN4-2

(

RED

CN6-1

CN6-2

CN7-4

CN7-3

CN7-2

CN7-1

R3
1K

<1 4W>

MTZJ15C

)

CJ12

INTP2

CJ131415

INTP3

RESET

AVREF
AVDD
VDD

IC
VSS
AVSS
P00
P14
P15
P16
P17

INTP1

P30

P57

P50

P51

P52

P53

P54

P55

P56

P31
P32
P33
P34
P35
P36

IC1

P37

P70
P71
P72

UPD78081CU-011

AN10

AN11

AN12

P13

P100

P101

X2 X1

18 19

13

2

<1 4W>
Q2

R5

10K

R6
1K

10 7

8

22
21
20

C34

C18

0.1

0.1
<F>

<F>

17
42
23
12
28
29
30
31

5V

R4

4.7K

13

C10

0.01
<F>

C35

<B>1000P

4

C11

0.01
<F>

Q3

3

12V

1C6(1 7)
BA12003

9

37

38

6

39

5

40

4

3

41

1

2

1

2

X1

5.0MHZ

5V

C17

C8

0.1

<F>

4WV

FAN
A-ON(HI)

FAN A-LO

FAN
B-ON(HI)

FAN B-LO

CRANKCASE
HEATER

1SR139-400

1SR139-400

12V

K1

K2

K3

K4

K5

K6

100 25V

4.7K

<1 4W>

D4

D5

5V

R26

DTC124ES

2

C9

0.01
<F>

5V

1

<1 4W>

3

5V

<1 4W>

5

DTC124ES

4

12V

11

12

13

14

15

16

IC4

Q1

2SD880

D2

SU16VF

15030

D3

1SR139

C7

10 25V

14

C4

0.1

<PA>

10

L1

18

5V12V

7805

C33

2200 25V

IC2 HU2001

12V

CN15
B2B-XASK-1-A

K2

K3
JQ1-12V

K5
JQ1-12V

CR1

CR1

120 0.2

120 0.2

JQ1-12V

K4
JQ1-12V

H

L
CN5
B4P7-VH-B
FM1

H

L

1SS133

16

3

5

5

6

7

7

9

8

11

9

13

10

11

34
33
32

C14

0.01
<F>

24

25

26

27

IC5(2 7)
BA12003

36

35

5V 5V

D6

C19

0.1
<F>

ARCL14FS103J102J103M

C30

0.01
<F>

C15

0.01
<F>

C20

<B>1000P

C23

<B>1000P

C26

<B>1000P

R20 1K <1 4W>

C29

0.1

<F>

12V

9

6

11

710

8

R13
10K

<1 4W>

14

R24

<1 4W>

C16

0.01
<F>

R14 1K <1 4W>

R16 1K <1 4W>

R18 1K <1 4W>

R22
10K

<1 4W>

R23
10K

<1 4W>

1K

IC3

PST600D

RC1

LED1

SLR-325

<RED>

LED2

SLR-325

<RED>

C36

0.1

<F>

5V

5V

R25
10K

<1 4W>

R10 1K <1 4W>
R11

1K

<1 4W>

R12 1K <1 4W>

C21

10 25V

C24

10 25V

C27

10 25V

12V

1

R9

10K

<1 4W>

<RN-1 5W>

<RN-1 5W>

<RN-1 5W>

DEFROST CHANGE - OVER

2
4
6
8
10
12

R15

14.0K

R17

14.0K

R19

6.65K

Zoom
Zoom

5V

R8

10K

<1 4W>

<1 4W>

C22

0.1
<F>

C25

0.1
<F>

C28

0.1

5V

<F>

<1 4W>

Zoom
Zoom

FJ1
FJ2
FJ3
FJ4
FJ5
FJ6

FJ7

R7

10K

R21
10K

CN10
B4P-SHF-1AA
CN10-1
CN10-2

TEST

CN10-3
CN10-4

5V

B2P-VH-B

CN11

CN12

CN13

CN11-2
CN11-1

B2P-VH-B-C BLK
CN12-2

CN12-1

B2P-VH-B-R RED
CN13-2

CN13-1

BROWN
BROWN

(

GRAY

)

(

GRAY

)

(

BLACK

(

BLACK

(

RED

(

RED

)
)

)
)

PIPE TEMPRATURE THERMISTOR

OUTDOOR TEMPRATURE THERMISTOR

DISCHARGED TEMPRATURE

THERMISTOR

JP1

BACK

NEXT

6.3.2 AO30R

<APPLICATION MODEL>

AOY30RBFL

UL1430 AWG22

(

RED

SECONDARY

UL1015
AWG22

TO
POWER
SUPPLY

)

PRIMARY

(

BLACK

)

(

WHITE

)

(

RED

)

CRANKCASE

HEATER

4WV

4WV

UL1015 AWG20

UL1015 AWG20

UL1015 AWG20

(BLUE)

TO INDOOR UNIT

UL1430 AWG22

UL1015
AWG22

(

WHITE

(WHITE)

(

RED

(

)

EZ-095HHSE-T

CN2-2

(

PURPLE

)

CN2-1

PURPLE

)

CN1
53406-9110

CN1-4

CN1-3

CN1-2

CN1-1

(

GREEN

)

UL1015 AWG16

BLACK

(

BLACK

(

BLACK

)

(

BLACK

)

)

(

WHITE

)

COMPRESSOR
CAPACITOR

E

L

N

3
2
1

CN3-2

CN3-1

CN3

B2B-XH-AM

E

CN8-2

CN8-1

)

CN9-1

CN9-2

S

COMP

(

RED

)

CN2

B2P3-VH-B-R

FH1 FH2

BET

F1

3.15A

<250V>

CN8
179844-2 RED

CN9 179844-1

C

(

BLACK

(

BLACK

R

CR3

120 0.2

FAN MOTOR
(LOWER)

)

)

D2SB20

C5

2200 50V

POWER RELAY

HE1a-Q-DC12V

D1

R1

5.6
<1 4W>

VA1
470

<TNR12G>

0.1

<PA>

<TNR12G>

CAPA,1

(

BLACK

(

546321

WHITE

BLACK

FM

CAPA,2

BLACK

(

546321

WHITE

BLACK

FM

FAN MOTOR
(UPPER)

Zoom
Zoom

16

5
6
7
8
9
10

11

34
33
32

C14

0.01
<F>

24

25

26

27

IC5(2 7)
BA12003

36

35

D6

1SS133

ARCL14FS103J102J103M

3
5
7

9
11
13

C30

0.01
<F>

C15

0.01
<F>

12V

6

710

C19

0.1

<F>

<B>1000P

<B>1000P

<B>1000P

C29

0.1

<F>

9

11

8

C20

C23

C26

5V 5V

R13
10K

<1 4W>

14

<1 4W>

C16

0.01
<F>

R14 1K <1 4W>

R16 1K <1 4W>

R18 1K <1 4W>

R20 1K <1 4W>

R22
10K

<1 4W>

R23
10K

<1 4W>

IC3

PST600D

C36

0.1
<F>

RC1

R24

1K

LED1

SLR-325

<RED>

LED2

SLR-325

<RED>

5V

5V

R25
10K

<1 4W>

R10 1K <1 4W>
R11

1K

<1 4W>

R12 1K <1 4W>

C21

10 25V

C24

10 25V

C27

10 25V

12V

1

R9

10K

<1 4W>

<RN-1 5W>

<RN-1 5W>

<RN-1 5W>

DEFROST CHANGE - OVER

2
4
6
8
10
12

R15

14.0K

R17

14.0K

R19

6.65K

<1 4W>

C22
<F>

C25
<F>

C28
<F>

5V

R8

R7

10K

10K

<1 4W>

0.1

0.1

0.1

5V

R21
10K

<1 4W>

CJ12

INTP2

CJ131415

INTP3

22

6

5

4

3

2

1

C18

0.1

<F>

C10

0.01

<B>1000P

C11

0.01
<F>

1C6(1 7)
BA12003

AVREF
AVDD

21

VDD

20

C34

0.1

<F>

IC

17

VSS

42

AVSS

23

P00

12

P14

28

P15

29

P16

30

P17

31

5V

13

INTP1

<F>

C35

4

P30

3

P57

37

P50

38

P51

39

P52

40

P53

41

P54

1

P55

2

P56

X1

5.0MHZ

5V

C17

C8

0.1

<F>

4WV

FAN
A-ON(HI)

FAN A-LO

FAN
B-ON(HI)

FAN B-LO

CRANKCASE
HEATER

D4

1SR139-400

D5

1SR139-400

12V

100 25V

<1 4W>

K1

K2

K3

K4

K5

K6

R4

5V

4.7K

R26

4.7K

<1 4W>

Q2

DTC124ES

2

C9

0.01
<F>

5V

1

R5

10K

<1 4W>

3

R6
1K

5V

<1 4W>

5

Q3

DTC124ES

4

12V

12V

9

10 7

11

12

13

14

15

16

8

IC4

JQ1-12V

K4
JQ1-12V

7805

C33

K2

5V12V

2200 25V

IC2 HU2001

Q1

2SD880

R3
1K

<1 4W>

R2

5.6

D2

C6

<1 4W>

MTZJ15C

10 25V

C3

4700P

<F>

C1

C2

4700P

<F>

SU16VF

15030

SA1

VA4

3600V

470

<DSA>

K6
JQ1-12V

K1
JQ1-12V

CN15-1

(

RED

)

CN15-2

(

RED

)

CN-4
53331-0210

CN4-1

(

WHITE

)

UL1015 AWG20

CN4-2

(

WHITE

)

UL1015 AWG20

CN5-4

)

UL1015 AWG22

WHITE

WHITE

CN5-3

)

UL1015 AWG22

(

RED

)

CN5-2

UL1015 AWG22

CN5-1

(BLUE)

RED

CL014-06F

BLUE

UL1015 AWG22

CN6-1

(

WHITE

)

UL1015 AWG20

CN6-2

(

WHITE

)

UL1015 AWG20

CN7-4

UL1015 AWG22

CN7-3

)

UL1015 AWG22

CN7-2

(

RED

)

UL1015 AWG22

CN7-1

(BLUE)

UL1015 AWG22

CL014-06F

RED

BLUE

C7

C4

0.1

<PA>

L1

12V

CN15
B2B-XASK-1-A

H

L
CN5
B4P7-VH-B
FM1

CN6
53331-0210

H

L

CN7
B4P7-VH-B-R RED
FM2

10 25V

14

10

18

CR1

K3
JQ1-12V

CR2

K5
JQ1-12V

D3

1SR139

120 0.2

120 0.2

RESET

P31
P32
P33
P34
P35
P36

IC1

P37

P70
P71

UPD78081CU-011

X2 X1

13

P72

AN10

AN11

AN12

P13

P100

P101

18 19

2

FJ7

FJ1
FJ2
FJ3
FJ4
FJ5
FJ6

Zoom
Zoom

TIMER
TEST 1
TEST 2

5V

CN11

CN12

CN13

JP1

CN10
B4P-SHF-1AA
CN10-1
CN10-2
CN10-3
CN10-4

B2P-VH-B
CN11-2

CN11-1

B2P-VH-B-C BLK
CN12-2

CN12-1

B2P-VH-B-R RED
CN13-2
CN13-1

TEST

(

GRAY
GRAY

(

(

BLACK

(

BLACK

(

RED

(

RED

PIPE TEMPRATURE
)
)

OUTDOOR TEMPRAT
)
)

DISCHARGED TEMPR

)
)

BACK

NEXT

6.3.3 AO36R, 45R (50Hz)

<APPLICATION MODELS>

AOY36RCB3L
AOY45RCB3L
AOT36RCB3L
AOT45RCB3L

(

UL1015
AWG22

BLACK

(

WHITE

(

RED

SECONDARY

PRIMARY

)

UL1015 AWG20

UL1015 AWG20

)

UL1015 AWG20

ELECTROMAGNETIC

(

BLACK

)

PURPLE

(

SWITCH

(

WHITE

)

4WV

4WV

)

(

RED

(

UL1430 AWG22

(

RED

UL1430 AWG22

UL1015
AWG22

)

)

GRAY

PURPLE

(

)

(

GREEN

(

(

)

EZ-095HHSE-T

RED

BLACK

CN3-2

CN3-1

B2B-XH-AM

CN2-2

)

CN2-1

CN1
53406-9110

CN1-4

CN1-3

CN1-2

)

CN1-1

)

UL1015 AWG16

CN8-1

CN8-2

(

BLACK

)

CN9-1

(

BLACK

)

CN9-2

T1 T3

COMP

)

T2

)

WHITE

(

246A

135B

E
R
S

(BLUE)

T
N
3

(WHITE)

2
1

TO INDOOR

CN3

(

RED

UNIT

CN2

B2P3-VH-B-R

FH1 FH2

E

CN8
179844-2 RED

CN9 179844-1

)

BET

F1

3.15A

<250V>

120 0.2

POWER
SUPPLY

CR3

D1

D2SB20

C5

2200 50V

<TNR12G>

R2

R1

5.6
<1 4W>

VA1
470

C1

0.1

<PA>

VA4
470

<TNR12G>

K6
JQ1-12V

K1
JQ1-12V

POWER RELAY

CAPA,1

FAN MOTOR

CAPA,2

5.6
<1 4W>

4700P

4700P

(

BLACK

(

WHITE

FM

(

BLACK

FM

C3

<F>

C2

<F>

3600V
<DSA>

(

WHITE

C6

SA1

)

(

RED

10 25V

)

)

(

RED

(

)

)

<1 4W>

MTZJ15C

RED

(
(

RED

WHITE

(

WHITE

UL1015 AWG20

UL1015 AWG20

UL1015 AWG22

UL1015 AWG22

)

UL1015 AWG22

(BLUE)

UL1015 AWG22

R3
1K

D2

SU16VF

)
)

)
UL1015 AWG20

)

UL1015 AWG20

UL1015 AWG22

UL1015 AWG22

UL1015 AWG22

BLUE

UL1015 AWG22

WHITE

WHITE

2SD880

15030

CN-4
53331-0210

Zoom
Zoom

1SS133

16

3

5

5

6

7

7

9

8

11

9

13

10

11

34
33
32

C14

0.01
<F>

24

25

26

27

IC5(2 7)
BA12003

36

35

5V 5V

D6

C19

0.1

<F>

ARCL14FS103J102J103M

C30

0.01
<F>

C15

0.01

0.01

<F>

C20

<B>1000P

C23

<B>1000P

C26

<B>1000P

R20 1K <1 4W>

C29

0.1

<F>

12V

<1 4W>

9

6

11

710

8

R13
10K

<1 4W>

14

R24

1K

<1 4W>

C16
<F>

R14 1K <1 4W>

R16 1K <1 4W>

R18 1K <1 4W>

R22
10K

IC3

PST600D

RC1

LED1

SLR-325

<RED>

LED2

SLR-325

<RED>

C36

0.1
<F>

5V

5V

R25
10K

<1 4W>

R10 1K <1 4W>
R11

1K

<1 4W>

R12 1K <1 4W>

C21

10 25V

C24

10 25V

C27

10 25V

12V

1

R9

10K

<1 4W>

<RN-1 5W>

<RN-1 5W>

<RN-1 5W>

2

DFROST CHANGE - OVER
4
6
8
10
12

R15

14.0K

R17

14.0K

R19

6.65K

<1 4W>

C22

0.1
<F>

C25

0.1
<F>

C28

0.1
<F>

FJ1
FJ2
FJ3
FJ4
FJ5
FJ6

FJ7

5V

R8

R7

10K

10K

<1 4W>

5V

R21
10K

<1 4W>

CJ12

INTP2

CJ131415

INTP3

RESET

AVREF
AVDD
VDD

IC
VSS
AVSS
P00
P14
P15
P16
P17

INTP1

UPD78081CU-011

P30

P57

P50

13

IC1

X2 X1

18 19

2

P31
P32
P33
P34
P35
P36

P37

P70
P71
P72

AN10

AN11

AN12

P100

P101

P13

Q2

R5

10K

4.7K

<1 4W>

Q3

12V

9

R4

C18

0.1

<F>

<B>1000P

C11

0.01
<F>

1C6(1 7)
BA12003

22
21
20

C34

0.1

<F>

17
42
23
12
28
29
30
31

5V

13

C10

0.01
<F>

C35

4

3

37

X1

5.0MHZ

5V

C17

C8

0.1

<F>

K2

K4
JQ1-12V

<1 4W>

D4

1SR139-400

D5

1SR139-400

100 25V

R26

4.7K

5V

DTC124ES

2

C9

0.01
<F>

5V

1

<1 4W>

3

R6
1K

5V

<1 4W>

5

DTC124ES

4

12V

10 7

IC4

Q1

D3

1SR139

C7

10 25V

14

C4

0.1

<PA>

10

L1

18

12V

CN15-1
CN15-2

CN15
B2B-XASK-1-A

CN4-1

CN4-2

CN5-4

CN5-3

H

CN5-2

CN5-1

L
CN5
B4P7-VH-B
FM1

CN6
53331-0210

CN6-1

CN6-2

CN7-4

CN7-3

H

CN7-2

CN7-1

L
CN7
B4P7-VH-B-R RED
FM2

7805

C33

2200 25V

IC2 HU2001

CR1

120 0.2

K3
JQ1-12V

CR2

120 0.2

K5
JQ1-12V

5V12V

JQ1-12V

5V

CN11

CN12

CN13

JP1

Zoom
Zoom

CN10
B4P-SHF-1AA
CN10-1
CN10-2

TEST

CN10-3
CN10-4

B2P-VH-B
CN11-2

CN11-1

B2P-VH-B-C BLK
CN12-2

CN12-1

B2P-VH-B-R RED
CN13-2

CN13-1

)
)

)
)

RED

)

RED

)

PIPE TEMPRATURE THERMISTOR

OUTDOOR TEMPRATURE THERMISTOR

DISCHARGED TEMPRATURE

THERMISTOR

(

GRAY

(

GRAY

(

BLACK

(

BLACK

(
(

BACK

NEXT

6.4 WIRELESS REMOTE CONTROLLER CIRCUIT DIAGRAM

IC1
M34201M4-322FP

33

Vpp

39

AVpp

32

Vss

38

AVss

40

VMF

73

Vss

36

CN Vss

26

F0

25

F1

24

F2

23

F3

AUTO
COOL
DRY
FAN
HEAT

10

D7

9

D8

8

D9

7

D10

17

D0

16

D1

15

D2

14

D3

13

D4

12

D5

11

D6

XC IN XC OUT

27

VC1 C4 27P

5P~25P

R5 10M

X1

DT-38

32.768KHz

RESET

CARR

SEG 0
SEG 1
SEG 2
SEG 3
SEG 4
SEG 5
SEG 6
SEG 7
SEG 8
SEG 9
SEG 10
SEG 11
SEG 12
SEG 14
COM 0
COM 1
COM 2

XOUT

X IN

K0
K1

K2
K3

G0
G1
G2
G3

35

18

30

28
R6 220K

D2

+

41
42
43
44

R2 1K

6
5
4
3
2

1
80
79
78
77
76
75
74
71
68
67
65

22
21
20
19

C5 100P

R8 15K

31

X2

R7

CSB-455E

1M

455KHz
C6

100P

K13

K14

KDC

K10

K11

K12

MANGANESE
BATTERY

MANGANESE
BATTERY

K9

K5

K6

K7

K8

D12

K1

D13

K2

D14

K3

D15

K4

D3 D4 D5 D6 D7 D8 D16

30 C
29
28
27
26
25
24
23
22
21
20
19
18
17
16

SETTING TEMP.

C3
47
16V

AUTO
LOW
MED
HIGH

FAN
CONTROL

++

C2

C1

47

3V3V

R9
300K

16V

R10
300K

D9 D10 D11

MASTER
CONTROL

0.1

R11

R12

300K

300K

R1
100K

C7

2.2
10V

ACL

R4 R14 R15 R16

2Ω 2Ω 2Ω 2
R3
100

R13

TR 1

22K

a

J1

b

J2
J3

J4

1/4w 1/4w 1/4w 1/4w

LED1 LED2 LED3 LED4

TR2

LCD

Ω

KEY NO. FUNCTION

K1

RUN/STOP

K2

TIMER SWITCHING

K3

TIME SETTING(+)

K4

TIME SETTING(-)
K5
K6
K7
K8
K9
K10
K11
K12
K13

TIME SETTING

K14

(TACT SW)

BACK

6.5

NEXT

LIQUID CR YST AL WIRED REMOTE CONTROLLER CIRCUIT DIAGRAM

DS1 D1 - 8

1
2

3
4
5
6

1
2

3

DS2

4

DS2

SW14

C102

SW12

SW8
SW3

SW6

C14

R20

R21

(D19)

12V

C15

R22 D19

D17

1

RED

D18

3

BLACK

FB1

2

WHITE

R1 - 4

IC1

IC5

12

C10

SW11

SW7
SW2SW1

SW4

38SW5
39SW13

49

40
41

ZD3ZD2

C1 - 4

D12D11D10D9

R5 - 8

48
29
30

47

46
32
31

ZD4

1

3
IC6

2

D13

R9

+

C5

R10 - 13

ZD5

68

C6

C7

C8

CL1

CL2

R14

58

59
55

56

C9

42
43
44

45

69

22
21
20

ZD7ZD5

LCD

19
26
25
24
18
29
30
32
33
3
4
5
17
18
15
14
13
12
11
2
10
23 31
9 27
6 8
7 28

50

70

51

71

52

72

53

73

54

74

55

75

56

76

57

77

58

78

59

79

510

80

511

1

512

2

513

3

514

12

523

13

524

14

525

15

526

16

527

17

528

18

529

19

530

20

531

21

COM

1

22

COM

2

23

COM

3

24

COM

4

ZD8

52

60 5

61

62

63

64

57
54
25
26

R29

27

R30

28

R31

33

IC2

4

3

2

1

C17

C18

C19

6V

D14

3

C11

DI5

R15

DI6

10

DS1 - 2

C12

R33

IC4

C13++

BT

C16

R17 Q2

Q1

R18

R19

12

R23 - 27

13

14

15

16

IC3

4

2

8

-

1

3

+

4

5

Q4

LED5

LED4

LED3

LED2

6.7
C103

BACK

NEXT

7. NOISE LEVEL MEASUREMENT

7.1 NOISE LEVEL CHECK POINTS

INDOOR UNIT

OUTDOOR UNIT

1.5 m

1 m

AIR

h

h

2

7 1

BACK

NEXT

7.2 NOISE LEVEL CURVE

AU 18, AU 18R

70

60

bar)

µ

50

40

dB: (0dB=0.0002

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

AU 30, AU 30R

70

60

bar)

µ

50

N20

N70

N60

N50

N40

N30

2000 4000 8000

N70

N60

N50

AU 25, AU 25(3), AU 25R

70

60

bar)

µ

50

40

dB: (0dB=0.0002

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

AU 36(3), AU 36R(3)

70

60

bar)

µ

50

N20

N70

N60

N50

N40

N30

2000 4000 8000

N70

N60

N50

40

dB: (0dB=0.0002

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

N20

2000 4000 8000

AU 45(3), AU 45R(3)

70

60

bar)

µ

50

40

dB: (0dB=0.0002

30

Octave band sound pressure level

20

63 125 250 500 1000 2000 4000 8000

N20

N40

N30

N70

N60

N50

N40

N30

40

dB: (0dB=0.0002

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

N20

N40

N30

2000 4000 8000

BACK

NEXT

AO 18, AO 18R

70

60

50

40

dB: (0dB=0.0002 bar)

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

AO 30, AO 30R

70

60

50

N20

N70

N60

N50

N40

N30

2000 4000 8000

N70

N60

N50

AO 25, AO 25(3), AO 25R

70

60

50

40

dB: (0dB=0.0002 bar)

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

AO 36(3), AO 36R(3)

70

60

50

N20

N70

N60

N50

N40

N30

2000 4000 8000

N70

N60

N50

40

dB: (0dB=0.0002 bar)

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

AO 45(3), AO 45R(3)

70

60

50

40

dB: (0dB=0.0002 bar)

30

Octave band sound pressure level

20

63 125 250 500 1000

N20

N20

N40

N30

2000 4000 8000

N70

N60

N50

N40

N30

2000 4000 8000

40

dB: (0dB=0.0002 bar)

30

Octave band sound pressure level

20

63 125 250 500 1000

Octave band center frequency (Hz)

N20

N40

N30

2000 4000 8000

Octave band center fre

quency (Hz)

BACK

NEXT

8. PRECAUTIONS ON INSTALLATION

8.1 INSTALLATION MANUAL

8.1.1 AU18, 25, 25(3)

SPLIT TYPE ROOM AIR CONDITIONER

Cassette Type [Cooling Model]
INSTALLATION MANUAL

(PART NO. 9356964011)

For authorized service personnel only.

WARNING

1

For the room air conditioner to operate satisfactorily, install it as outlined in this
installation manual.

2

Connect the indoor unit and outdoor unit with the room air conditioner piping
cords available from our standard parts. This installation manual 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

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 manual 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.

8 1

BACK

NEXT

STANDARD PARTS

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

INDOOR UNIT ACCESSORIES

Name and Shape Q'ty Application

Coupler heat
insulation

Special nut A
(large flange)

Special nut B
(small flange)

Template

Remote con­troller

Machine screw
(small)

Remote con­troller holder

2 For indoor side
pipe joint

4 For installing
indoor unit

4 For installing
indoor unit

1 For ceiling hole
cutting

1

1 For installing
the remote con­ troller

1 For mounting
the remote con­ troller

OUTDOOR UNIT ACCESSORIES

 Name and Shape Q'ty Application

Hexagon wrench

GRILLE ACCESSORIES

 Name and Shape Q'ty Application

Bolt

Washer

Spring washer

1 For air purge

4 For mounting
grille

4 For mounting
grille

4 For mounting
grille

Screw (medium)

Battery
(R6P/LR6)

2 For installing
the remote con­ troller holder

4 For remote con­ troller

Blower cover
insulation

2 For discharged
air

BACK

NEXT

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 wi th the customer as follows: The discharge direction can be s elected as shown below.

Fig. 1

4" (100 mm) or more

(4 directions) (3 directions)

Piping positon 4" (100 mm)

4" (100 mm) or more

(2 directions) (2 directions)

or more

39" (1,000 mm)
or more

CAUTION

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

Pipe Pipe

Indoor unit

(1) Install the indoor unit on a place having a sufficient strent strength
so that it withstands against the weight of the indoor unit.

(2) The inlet and outlet ports should not be obstructed; the air
should be able to blow all over the room.
(3) Leave the space required to service the air conditioner.
(Fig.2)

(4) The ceiling rear height is 11-13/16 inches (300mm) or more.
(5) A place from where the air can be distributed evenly through-

out the room by the unit.
(6) A place from where drainage can be extracted outdoors easi­ ly.

Fig. 2

Outdoor unit

WARNING

1

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

2

When installing the outdoor unit
where it may exposed to strong
wind, fasten it securely.

(1) If possible, do not install the unit where it will be exposed
todirect sunlight.(If necessary, install a blind that does not
interfere with the air flow.)
(2) Install the outdoor unit in a place where it will be free
from being dirty or getting wet by rain as much as possi­ ble.
(3) Install the unit when connection to the indoor unit is easy.
(4) Do not place animals and plants in the path of the warm
air.
(5) Take the air conditioner weight into account and select a
place where noise and vibration are small.
(6) Select a place so that the warm air and noise from the air
conditioner do not disturb neighbors.
(7) Provide the space shown in Fig. 3 so that the air flow is
not blocked. Also for efficient operation, leave open three
of the four directions front, rear, and both sides.

Fig. 3

1'

(30 cm)

or more

1'4" (40 cm) or more

1' (30 cm)
or more

2' (60 cm)

or more

Strong and durable ceiling

11-13/16" (300 mm)

or more

39" (1,000 mm)
or more

Obstruction

39" (1,000 mm)
or more

2' (60 cm)

or more

BACK

NEXT

CONNECTION PIPE REQUIREMENT

Table 1

Diameter

Small Large

18,000 BTU/h class
25,000 BTU/h (1 ø ) class

25,000 BTU/h(3 ø ) class

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.

9.53 mm
(3/8 in)

9.53 mm
(3/8 in)

15.88 mm
(5/8 in)

15.88 mm
(5/8 in)

Maximum

height

25 m

(82 ft)

35 m

(115 ft)

Maximum height
(between indoor

and outdoor)

15 m

(49 ft)

30 m

(98 ft)

ELECTRICAL REQUIREMENT

Electric wire size and fuse capacity.

Table 2

18,000

BTU/h

class

Power

cable
(mm2)

Connection

cord (mm2)

Fuse capacity (A)

Always use H07RN-F or equivalent as the connection
cord.
Install the circuit breaker nearby the units. (Both indoor
unit and outdoor unit)

MAX
MIN

MAX

MIN

3.0

2.5

3.0

2.5
30 30 10

25,000

BTU/h(1ø)

class

3.0

2.5 1.5

3.0

25,000

BTU/h (3ø)

class

2.0

1.5

1.01.0

INSTALLATION PROCEDURE

Install the room sir conditioner as follows:

35-3/64" ( 890 mm)
(Ceiling opening measurement)

1

INDOOR UNIT INSTALLATION

18" (457 mm)

2. Hanging preparations
Firmly fasten the hanging bolts as shown in Fig. 5 or by

another method.

(hanging bolt position)

28-25/32" (731 mm)

(hanging bolt position)

37-13/32" ( 950 mm)

(grille measurement)

Fig. 5

Hole-in anchor
Hole-in plug Concrete Insert

Hanging bolt
M10

Length (H) = h – 9-21/32"
(shown in Fig.6)

BACK

NEXT

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 out­ door 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. 11) is spread uniformly
and that there are no cracks.

Table 3

Pipe Flare nut

Small pipe Small (width across flats 22 mm)

Large pipe Large (width across flats 24 mm)

Fig. 11

Width across flats

L dimension

Small pipe

1.8 to 2.0 mm (9.53 mm dia)

L

2. Bending pipes

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

Large pipe

2.2 to 2.4 mm (15.88 mm dia)

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. 13 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. 13

Heat insulating
pipe

Cutter

Cut line

Pipe

CAUTION

1

To prevent breaking of the pipe,
avoid sharp bends. Bend the pipe
with a radius of curvature of 150 mm
or over.

2

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

3. Connection pipes

(1) Indoor unit side

Fig. 14

Indoor unit

Large pipe

Fig. 12

OK NO

Do not bend the pipes in an angle less than 90˚. When
the pipes are bent and stretched repeatedly, the material
will be hardened, causing the pipes no longer be sent or
stretched. Be sure to limit number of bending and
stretching to three times.

Extend the pipe
by unwinding it.

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.

Small pipe

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NEXT

 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. 15)

Holding spanner

Fig.15

Body side

Holding spanner

90

Torque wrench

CAUTION

1

 [Hold] the torque wrench at its grip,
  keeping it in the right angle with the
  pipe as shown in Fig. 15, in order to
  tighten the flare nut correctly.

Table 4: Flare nut tightening torque

 Pipe  Tightening torque
Small pipe  310 to 350 kgf • cm
Large pipe  750 to 800 kgf • cm

CAUTION

5

AIR PURGE

1.  Air purge
(1) Remove the cap, and connect the gauge manifold and
the vacuum pump to the charging valve by the service
 hoses.
(2) Vacuum the indoor unit and the connecting pipes until
 the pressure in them lowers to below 1.5 mmHg.
(3) Disconnect the service hoses and fit the cap to the
 charging valve (Tightening torque: 70 to 90 kgf•cm).
(4) Remove the blank caps, and fully open the spindles of
 the 2-way and 3-way valves with a hexagon wrench
 (Torque: 2-way valve: 70 to 90 kgf•cm, 3-way valve: 100
 to 120 kgf•cm).
(5) Tighten the blank caps of the 2-way valve and 3-way
 valve to the specified torque (200 to 250 kgf•cm).

Fig. 17

Outdoor
unit

Service
hose with
valve core

Refrigerant pipe

Blank cap

Hexagon wrench

3-way valve

Charging
valve

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

(2) Outdoor unit side
 Tighten the flare nut of the connection pipe at the out­ door unit valve connector. The tightening method is the
 same as that as at the indoor side.

Fig. 16

(Large pipe)

Connection pipe

(Small pipe)

Flare nut

Pipe coupling

2-way valve3-way valve

Cap

Gauge manifold

Lo

Hi

Vacuum pump

Service hose

2. Additional charge
 Refrigerant suitable for a piping length of 5 m is charged
 in the outdoor unit at the factory. When the piping is
 longer than 5 m, additional charging is necessary. For
 he additional amount, see the table below.

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Table 5

Pipe length

18,000 BTU/h
class

Addi-

25,000 BTU/h

tional

(1 ) class

refrig­erant

[18,000 BTU/h class • 25,000 BTU/h (1ø) class]

 Between 5 m and 25 m, when using a connection pipe
 other than that in the table, charge additional refrigerant
 with 0.42 oz (12 g)/3.3 ft(1 m) as the criteria.

[25,000 BTU/h (3ø) class]

 Between 5 m and 35 m, when using a connection pipe
 other than that in the table, charge additional refrigerant
 with 0.42 oz (12 g)/3.3 ft(1 m) as the criteria.

6

ø

25,000 BTU/h
(3 ) class

ø

INSTALLING THE COUPLER

Table 4: Flare nut tightening torque

16 ft  33 ft  49 ft  66 ft  82 ft  98ft  115 ft
(5 m) (10 m) (15 m) (20 m) (25 m) (30 m) (35 m)

2.1 oz 4.2 oz 6.3 oz 8.5 oz

None

(60 g) (120 g) (180 g) (240 g)



2.1 oz 4.2 oz 6.3 oz 8.5 oz 10.6 oz 1.8 oz

None

(60 g) (120 g) (180 g) (240 g) (300 g) (360 g)



—  —

HEAT INSULATION

CAUTION

When moving and installing the air

1

 conditioner, do not mix gas other
 than the specified refrigerant (R22)
 inside the refrigerant cycle.

2

When adding refrigerant, add the
 refrigerant from the charging valve
 at the completion of work.

The maximum length of the piping is
 25m[18,000 BTU/h class•25,000
 BTU/h(1 ) class], 35m [25,000
 BTU/h (3 ) class]. If the units are

ø

ø

 further apart than this, correct oper­ tion can not be guaranteed..

7

ELECTRICAL WIRING

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.

Fig. 18

Coupler heat
insulation

Body

}

Be sure to overlap
the insulation

CAUTION

Must fit tightly against body without
any gap.

No gap

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) to 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 ter­ minal board and tighten securely with the terminal
 screw using a screw-driver.

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) to 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, secure­ ly 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.

Coupler heat insulation

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2.  Outdoor unit side

(1) Remove the terminal cover of the outdoor unit, and insert
 the end of the connection cord and the power cable
 [25,000 BTU/h (3ø) class] into the terminal board.
(2) Fasten the connection cord with the cord clamps, and
 install the terminal cover.

[18,000 BTU/h class • 25,000 BTU/h (1ø) class]

Fig.23

Terminal
cover

Insulation tube

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

2
1

(N)

N
L

Indoor unit
side terminal

Connection cord

Connection
cord

Connection cord

Green/Yellow

Terminal board

Cord clamp

Insulation tube

Connection cord

Cord

clamp

Insulation tube
(Use VW-1, 0.5 to 1.0 mm thick,
PVC tube as the insulation tube)

2
1

(N)

Outdoor unit
side terminal

1

2

(N)

Green/Yellow

Connection cord

[25,000 BTU/h (3ø) class]

Fig.24

Terminal board

Green/
Yellow

Terminal
cover

Power cable

Insulation tube

Connection
cord

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

Indoor unit
side terminal

Power supply

3
2 2
1

Green/Yellow

123NTSR

Green/
Yellow

Green/
Yellow

Power
cable

Connection
cord

Cord clamp

Insulation tube

Connection cord

Insulation tube
(Use VW-1, 0.5 to 1.0 mm thick,
PVC tube as the insulation tube)

Connection

Cord clamp

R
S
T
N
3

1

cord

EARTH

EARTH

Outdoor unit
side terminal

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8

GRILLE INSTALLATION

1. Blower cover insulation

 Install the blower cover insulation only when the outlet
 direction is not specified.
 Two blower cover insulations are packed with the grille
 assembly. Install the blower cover insulation at the dif­ fuser position shown in Fig. 25. At this time, use the pip­ ing position as the criteria.

Fig. 25

2 direction example

Fit the blower cover insulation
tightly at the air diffuser section.

A

(Piping
direction)

A

Blower cover
insulation

2. Installing grille assembly to body

 Hook the grille assembly to the hook of the body and
 temporarily fasten it. Do this that bottom of control box of
 the body becomes the display section of the grille
 assembly.

Air diffuser

A-A Section view

Fig. 27

Washer

Spring washer

Bolt

No gap between ceiling and
grille around entire periphery.

Wireless unit connection wire wiring

Connect the connector in accordance with part A detail view.
Then clamp the lead wire with clamp so that it does not
touch the rotating parts .

Fig. 28

Fig. 26

Hook of the
body

Hook of the
body

Hook

Control box

Hook of the
body

Hook

Hook

Grille assembly

Bolting the grille assembly to the body

Install the grille assembly to the body with the four bolts,
spring washers and washers.

A

Fig. 29 Part A detail view

Wire (louver)

Joint wire (louver)

Install the cover C. (Fig. 20)
Install the intake grille.

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REMOVING/INSTALLING THE INTAKE GRILLE

1. Removing the intake grille

(1) Push the intake grille pushbuttons (two places) until you
 hear a “click”.
(2) Open the intake grille.

Fig. 30

PUSH

(3) Remove the wire (hanger). (Fig. 31)
(4) Remove the intake grille by opening it 100˚ to 120˚.

Fig. 31

PUSH

Wire
(

hanger

(2) Install the wire (hanger).

Fig. 33

Wire
(

hanger

)

Wire
(

hanger

)

(3) Hook the intake grille hooks to the grille assembly.

Fig. 34

Intaje grille hooks

)

PUSH

PUSH

100 to 120

2. Installing the intake grille

(1) Tilt the intake grille 100˚ to 120˚ and hook the three
 hooks to the intake grille hook shaft.

Hook shaft

Fig. 32

Hook

100 to 120

(4) Push the intake grille pushbuttons (two places) until you 
 hear a “click”.

CAUTION

1

The louver angle cannot be changed
if the power is not on, (If moved by
hand, it may be damaged.)

2

The grille assembly is directional rel­ative to the air conditioner body.

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9

REMOTE CONTROLLER INSTALLATION

Install the remote controller so that the front is facing the
photocell. (Fig. 35)

Fig. 35

Photocell

Remote control unit

Install the remote controller with a distance of 7 m
between the remote controller and the grille photocell as
the criteria. However, when installing the remote con­troller, check that it operates positively.
Install the remote controller holder to a wall, pillar, etc.
with the two screws (medium).
Hook the remote controller to the hook of the remote
controller holder. (Fig. 36)

Fig. 36

Hook

Remote
controller

Remote

holder

control

Screw (medium)

Fasten the remote controller to the remote controller 
 holder with the machine screw (small). (Fig. 37)

Fig. 37

Machine screw
(small)

Battery cover

Remote controller code switching

Fig. 38

123

F

F

O

DIP switch

Indoor unit
control panel

Fig. 39

A B

Remote controller
signal selector switch

Remote controller

Controll panel DIP switch [3] and the remote controller
signal selector switch can be switched and signals
received as follows:
 DIP SW [3] Remote controller
  signal selector SW
 ON A
 OFF B

When DIP SW [3] was set to ON — remote controller
 signal selector SW was set to B and DIP SW [3] was
 set to OFF — remote controller selector SW was set
 to A, signals cannot be received.

<Example>

When two air conditioners installed in a room
When you want to run the two conditioners the same
Set DIP SW [3] of both air conditioners to ON and the
remote controller signal selector SW to A.

When you can run the two air conditioners individually
Set DIP SW [3] of one air conditioner to ON and the
remote controller signal selector SW to A. Set DIS

A B

DI PSW

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10

TEST RUNNING

Press the remote controller test running button while the 
air conditioner is running.
At the end of test running, press the remote controller 
start-stop button. (F ig. 40)

Fig. 40

Test running
button

Run the air conditioner in accordance with the operating 
manual.

Fig. 41

LOUVER

TIMER

OPERATION

OFF ON

LOUVER LAMP
(Orange)

TIMER LAMP
(Green)

OPERATION LAMP
(Red)

 Operation can be checked by lighting and flashing of the 
 grille display section (Fig.41) OPERATION andTIMER 
 lamps.
 Perform judgement in accordance with the following:

Power ON

POWER

NORMAL AUTO

RESTART

MANUAL
AUTO

Error
 The OPERATION and TIMER lamps operate as fol-

 lows (Table 6) according to the error contents.

Table 6

Error display Error contents

0.5sec

OPERATION
LAMP

TIMER
LAMP

OPERATION
LAMP

TIMER
LAMP

OPERATION
LAMP

TIMER
LAMP

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

0.1sec

0.5sec

0.1sec

0.5sec

0.1sec

5sec

0.1sec

5sec

0.1sec

5sec

0.1sec

0.5sec

0.5sec

Single quick
flash
repeated

0.1 sec ON/
OFF repeated

Two quick
flashes
repeated

0.1 sec ON/
OFF repeated

Six quick
flashes
repeated

0.1 sec ON/
OFF repeated

Room tempera­ture thermistor
abnormal temper­ature detected

Piping thermistor
abnormal temper­ature detected

Float switch ON
for 3 minutes or
longer

 When the power is turned on, the grille display sec­ tion OPERATION and TIMER lamps flash quickly and 
 alternately. When operation starts thereafter, flashing 
 stops.

Test running
 When the air conditioner is run by pressing the

 remote controller test running button, the OPERA­ TION and TIMER lamps flash slowly at the same
 time.

To stop test running, press the START/STOP button.
Do not operate the air conditioner in the test running 
state for a long time.
For the operation method, refer to the operating manual 
and perform operation check
Check that there are to abnormal sounds or vibration 
sounds during test running.

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8.1.2 AU18R, 25R

SPLIT TYPE AIR CONDITIONER

Cassette Type [Reverse Cycle Model]

INSTALLATION MANUAL

(PART NO.

9356966015

)

For authorized service personnel only.

WARNING

1

For the room air conditioner to operate satisfactorily, install it as outlined in this
installation manual.

2

Connect the indoor unit and outdoor unit with the room air conditioner piping and
cords available from our standard parts. This installation manual 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

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 manual 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.

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STANDARD PARTS

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

INDOOR UNIT ACCESSORIES OUTDOOR UNIT ACCESSORIES

Name and Shape Q'ty ApplicationName 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

2 For indoor side

pipe joint

10 For installing the

remote controller
cord

10

For installing the
remote controller
cord clamp

2 For installing the

remote controller

4 For installing

indoor unit

4 For installing

indoor unit

1 Installation to

indoor unit

1 For ceiling hole

cutting

Hexagon wrench

Pipe (drain)

Flexible tube

Cap (drain)

GRILLE ACCESSORIES

Name and Shape Q'ty Application

Bolt

1 For air purge

1

1 For outdoor

unit drain
piping work

2

4 For mounting

grille

Binder

2 For remote

(large)

controller cord
binding

2 For remote con-

(small)

troller cord bind­ing

Washer

Spring washer

Blower cover
insulation

4 For mounting

grille

4 For mounting

grille

2 For discharged

air

4" (100 mm) or more

(4 directions) (3 directions)

Piping positon 4" (100 mm)

or more

(2 directions) (2 directions)

4" (100 mm) or more

39" (1,000 mm)
or more

Pipe Pipe

Strong and durable ceiling

11-13/16" (300 mm)

or more

39" (1,000 mm)
or more

39" (1,000 mm)
or more

Obstruction

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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

CONNECTION PIPE REQUIREMENT

Table 1

CAUTION

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

Indoor unit

(1) Install the indoor unit on a place having a sufficient strength

so that it withstands against the weight of the indoor unit.

(2) The inlet and outlet ports should not be obstructed; the air

should be able to blow all over the room.

(3) Leave the space required to service the air conditioner.

(Fig. 2)
(4) The ceiling rear height is 11-13/16 inches (300 mm) or more.
(5) A place from where the air can be distributed evenly through-

out the room by the unit.
(6) A place from where drainage can be extracted outdoors easi-

ly.

Fig. 2

Diameter

Maximum

length

Small Large

9.53 mm 15.88 mm
(3/8 in) (5/8 in)

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.

25 m

(82 ft)

Maximum height

(between indoor and

outdoor)

15 m
(49 ft)

ELECTRICAL REQUIREMENT

Electric wire size and fuse capacity:

Table 2

18,000 BTU/h class 25,000 BTU/h class

Power

cable

(mm2)

Connection

cord (mm2)

Fuse capacity (A)

Always use H07RN-F or equivalent as the connection
cord.
Install the circuit breaker nearby the units. (Both indoor
unit and outdoor unit)

MAX

MIN

MAX

MIN

3.0 3.0

2.5 2.5

3.0 3.0

2.5 2.5
20 30

35-3/64" ( 890 mm)

(Ceiling opening measurement)

18" (457 mm)
(hanging bolt position)

37-13/32" ( 950 mm)

(grille measurement)

28-25/32" (731 mm)

(hanging bolt position)

Hole-in anchor
Hole-in plug Concrete Insert

Hanging bolt
M10

Length (H) = h–9-21/32"
(shown in Fig.6)

1'

(30 cm)

or more

2' (60 cm)

or more

1'4" (40 cm) or more

1' (30 cm)
or more

2' (60 cm)

or more

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Outdoor unit

WARNING

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

When installing the outdoor unit
where it may exposed to strong

wind, fasten it securely.

(1) If possible, do not install the unit where it will exposed to

direct sunlight. (If necessary, install a blind that does not
interfere with the air flow.)

(2) Install the outdoor unit in a place where it will be free from

being dirty or getting wet by rain as much as possible.
(3) Install the unit when connection to the indoor unit is easy.
(4) During heating operation, drain water flows from the out-

door unit.

Therefore, install the outdoor unit in a place where the

drain water flow will not be obstructed.
(5) Do not place animals and plants in the path of the warm air.
(6) Take the air conditioner weight into account and select a

place where noise and vibration are small.
(7) Select a place so that the warm air and noise from the air

conditioner do not disturb neighbors.
(8) Provide the space shown in Fig. 3 so that the air flow is

not blocked. Also for efficient operation, leave open three

of the four directions front, rear, and both sides.

Fig. 3

INSTALLATION PROCEDURE

Install the room air conditioner as follows:

1

INDOOR UNIT INSTALLATION

1. Position the ceiling hole and hanging bolts as shown in
Fig. 4.

Fig. 4

2. Hanging preparations
Firmly fasten the hanging bolts as shown in Fig. 5 or by
another method.

Fig. 5

Trap

Rise

Air bleeding

Supporter

5 to 6.5 ft (1.5 to 2 m)

6" (150 mm)
or less

Max 6"

(150 mm)

Plug the holes. Drain pipe mounting hole

Drain pipe mounting hole

Drain pipe

Bottom

Special nut A

Special nut B

Hanging bolt length

Hanging bolt

Bottom of ceiling

10-15/16"

(278 mm)

Fine adjust to
that the body
is level.

Vinyl hose Grille supporter

9-21/32" to 10"

(245 to 255 mm)

11-1/32" to 11-7/32"

(280 to 285 mm)

Special nut A

Special nut B

25/64" to 19/32"

(10 to 15 mm)

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3. Body installation

(1) Install special nut A (large flange) to the hanging bolts at

a position 11-1 /32” to 11-7/32” (280 to 285 mm) from the
bottom of the ceiling. (Fig. 7)

(2) Next, install special nut B (small flange) to the hanging

bolts. Provide a space of 25/64” to 19/32” (10 to 15 mm)
between special nut B and special nut A (large flange).

(3) Align the end of the hanging bolts with the larger of the

four long body mounting plate holes and lift the body until
it touches special nut A.
Then slide the body in the rotation direction so that it is
supported by special nut B. (Fig. 8)

(4) Adjust special nut B so that the bottom of the ceiling and

the four grille supporters are on the same plane. (Fig. 6)

(5) 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. 6

2

INSTALLING DRAIN PIPE

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 6”
(150 mm) within a range of 6” (150 mm) from the body.
A rise dimension over this range will cause leakage.

Fig. 9

Fig. 7

Fig.8

3

OUTDOOR UNIT INSTALLATION

(1) When the outdoor unit will be exposed to strong wind, fasten

it with bolts at the places indicated by the arrows. (Fig. 10)

(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.

(3) When installing the drain pipe, plug all the holes ( • holes

at two places) other than the drain pipe mounting hole in
the bottom of the outdoor unit with putty so there is no
water leakage. (Fig. 10)

Fig. 10

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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 out-

door 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. 11) is spread uniformly

and that there are no cracks.

Table 3

Pipe
Small pipe Small (width across flats 22 mm)
Large pipe Large (width across flats 24 mm)

Fig. 11

Width across flats

L

2. Bending pipes

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

Flare nut

L dimension

Small pipe

1.8 to 2.0 mm (9.53 mm dia.)

Large pipe

2.2 to 2.4 mm (15.88 mm dia.)

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. 13 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. 13

Heat insulating
pipe

Cutter

Cut line

Pipe

CAUTION

1

To prevent breaking of the pipe,
avoid sharp bends. Bend the pipe
with a radius of curvature of 150 mm
or over.

2

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

3. Connection pipes

(1) Indoor unit side

Fig. 14

Indoor unit

Large pipe

Fig. 12

OK NO

Do not bend the pipes in an angle less than 90°. When
the pipes are bent and stretched repeatedly, the material
will be hardened, causing the pipes no longer be sent or
stretched. Be sure to limit number of bending and
stretching to three times.

Extend the pipe
by unwinding it.

CAUTION

Be sure to apply the pipe against the

1

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.

Small pipe

Lo

Hi

Refrigerant pipe

Outdoor
unit

Blank cap

3-way valve

Charging
valve

Service
hose with
valve core

Cap

Service hose

Vacuum pump

Gauge manifold

Hexagon wrench

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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. 15)

Fig. 15

Body side

Holding spanner

90

Torque wrench

CAUTION

1

Hold the torque wrench at its grip,
keeping it in the right angle with the
pipe as shown in Fig. 15, in order to
tighten the flare nut correctly.

Table 4: Flare nut tightening torque

5

AIR PURGE

1. Air purge

(1) Remove the cap, and connect the gauge manifold and

the vacuum pump to the charging valve by the service
hoses.

(2) Vacuum the indoor unit and the connecting pipes until

the pressure in them lowers to below 1.5 mmHg.

(3) Disconnect the service hoses and fit the cap to the

charging valve (Tightening torque: 70 to 90 kgf

(4) Remove the blank caps, and fully open the spindles of

the 2-way and 3-way valves with a hexagon wrench
(Torque: 2-way valve: 70 to 90 kgf
to 120 kgf

•cm).

•cm, 3-way valve: 100

(5) Tighten the blank caps of the 2-way valve and 3-way

valve to the specified torque (200 to 250 kgf

Fig. 17

•cm).

•cm).

Pipe Tightening torque

Small pipe 310 to 350 kgf · cm
Large pipe 750 to 800 kgf · cm

CAUTION

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

(2) Outdoor unit side

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.

Fig. 16

(Large pipe)

Connection pipe

(Small pipe)

Flare nut

Pipe coupling

2. Additional charge

Refrigerant suitable for a piping length of 5 m is charged
in the outdoor unit at the factory. When the piping is
longer than 5 m, additional charging is necessary. For
the additional amount, see the table below.

3-way valve 2-way valve

}

Coupler heat
insulation

Body

Be sure to overlap
the insulation

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Table 5

Pipe length

18,000 BTU/h

Additional
refrigerant

[18,000 BTU/h class]

Between 5 m and 25 m, when using a connection pipe
other than that in the table, charge additional refrigerant
with 1.69 oz (48 g)/3.3 ft(1 m) as the criteria.

[25,000 BTU/h class]

Between 5 m and 25 m, when using a connection pipe
other than that in the table, charge additional refrigerant
with 1.20 oz (34 g)/3.3 ft(1 m) as the criteria.

6

class

25,000 BTU/h
class

INSTALLING THE COUPLER

16 ft 33 ft 49 ft 66 ft 82 ft
(5 m) (10 m) (15 m) (20 m) (25 m)

8.5 oz 16.9 oz 25.4 oz 33.9 oz

None

(240 g) (480 g) (720 g) (960 g)

6.0 oz 12.0 oz 18.0 oz 24.0 oz

None

(170 g) (340 g) (510 g) (680 g)

HEAT INSULATION

CAUTION

1

When moving and installing the air
conditioner, do not mix gas other
than the specified refrigerant (R22)
inside the refrigerant cycle.

2

When adding refrigerant, add the
refrigerant from the charging valve
at the completion of work.

3

The maximum length of the piping is
25m. If the units are further apart
than this, correct operation can not
be guaranteed.

7

ELECTRICAL WIRING

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.

Fig. 18

CAUTION

Must fit tightly against body without
any gap.

No gap

Coupler heat insulation

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) to 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 ter-

minal board and tighten securely with the terminal
screw using a screw-driver.

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) to 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, secure-

ly 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.

Cover
(wire)

Cover B

Cover C

Binder (large)

Cord
clamp

Connection cord
(To the outdoor unit)

Remote controller cord

1

2

(N)

3

123

OUTDOOR
UNIT

Black
White
Red

Connection
cord

Terminal board

(Indoor unit)

Remote
controller

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Fig. 19

A. Solid wire B. Strand wire

Round terminal

Screw with

special

washer

Round
terminal

Wire

Strip 15/16" (25 mm)

Wire

Insulation

Loop

Strip 3/8" ((10 mm)

Screw with
special washer

Round terminal

Terminal

board

1. Indoor unit side

(1) Remove the cover B,C and cover (wire) and install the

connection cord. (Figs. 20, 21 and 22)

Fig. 21

Fig. 22

Fig. 20

(2) After wiring is complete, clamp the remote controller

(3) Install the cover B and cover (wire).

cord and connection cord with the cord clamp and binder
(large).

CAUTION

1

Tighten the indoor unit connection
cord (to the outdoor unit) and power
supply indoor and outdoor unit ter­minal board connections firmly with
the terminal board screws. Faulty
connection may cause a fire.

2

If the indoor unit connection cord (to
the outdoor unit) and power supply
are wired incorrectly, the air condi­tioner may be damaged.

3

Wire the indoor unit connection cord
(to the outdoor unit) by matching the
numbers of the outdoor and indoor
units terminal board numbers as
shown in (Fig. 22)

4

Ground both the indoor and outdoor
units by attaching a ground wire.

5

Unit shall be grounded in compli­ance with the applicable local and
national codes.

L N 3

2

(N)

1

3

Black

2

White

1
3

1

Red

EARTH

2

(N)

3

N

L

1

2

(N)

EARTH

Terminal board

Green/
Yellow

Terminal
cover

Power cable

Insulation tube

Cord
clamp

Connection
cord

Insulation tube
(Use VW-1, 0.5 to 1.0 mm thick,
PVC tube as the insulation tube)

Connection cord

Remote controller Power supply

Power line

Control Line

Indoor unit
side terminal

Outdoor unit
side terminal

Cord clamp

Insulation tube

Connection cord

Power
cable

Connection
cord

Green/
Yellow

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

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2. Outdoor unit side

(1) Remove the terminal cover of the outdoor unit, and insert

the end of the connection cord and the power cable into
the terminal board.

(2) Fasten the connection cord with the cord clamps, and

install the terminal cover.

Fig. 23

8

GRILLE INSTALLATION

1. Blower cover insulation

Install the blower cover insulation only when the outlet
direction is not specified.
Two blower cover insulations are packed with the grille
assembly. Install the blower cover insulation at the dif­fuser position shown in Fig. 24. At this time, use the pip­ing position as the criteria.

Fig. 24

2 direction example

Fit the blower cover insulation
tightly at the air diffuser section.

A

(Piping
direction)

A

Blower cover
insulation

2 Installing grille assembly to body

Hook the grille assembly to the hook of the body and
temporarily fasten it.

Fig. 25

Air diffuser

A-A Section view

Hook of the
body

Hook

Control box

Hook of the
body

Hook of the
body

Hook

Hook

Grille assembly