General AUG45A, AUG45AGB3W, AOG45APA3L Technical Manual

CASSETTE TYPE AIR CONDITIONER

TECHNICAL MANUAL

FUJITSU GENERAL LIMITED

BACK

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

BACK

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)

BACK

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

BACK

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

BACK

1.1 MODEL IDENTIFICATION

INDOOR UNIT

TYPE AU: CASSETE

OUTDOOR UNIT

2 10

DESTINATION MARKET REGIONS

T: 50Hz FUJITSU

(AUSTRALIA)

Y: 50Hz FUJITSU

CAPACITY RANK

BTU/h

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

FUNCTION TYPE

R: REVERSE

CYCLE

A: COOLING

ONLY

CONTROL METHOD (REMOTE

CONTROL)

L: WIRED

S: WIRELESS

78L9

SHOWING MINOR CHANGES

SPECIAL METHOD

3: 3-PHASE

TYPE

AO: OUT-

DOOR

DESTINATION MARKET REGIONS

T: 50Hz FUJITSU

(AUSTRALIA)

Y: 50Hz FUJITSU

CAPACITY RANK

BTU/h

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

FUNCTION TYPE

R: REVERSE

CYCLE

A: COOLING

ONLY

SHOWING COMPRESSOR USED

SHOWING MINOR CHANGES

SPECIAL METHOD FUNCTION

3: 3-PHASE

L: LOW AMBIENT

TEMPERATURE COOLING OPERATION

BACK

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

BACK

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.

1 3

BACK

1.4 EASY OPERATION BY REMOTE CONTROLLER

1.4.1 WIRELESS REMOTE CONTROLLER

NON STOP CLOCK

Signal Transmitter

TIMER SET

AUTO AUTO

MASTER CONTROL

THRTMOSTAT

Transmits control signals to the air conditioner.

SET TIME Buttons

( )

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

TIMER Button

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

MASTER CONTROL Switch

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

Remote Control Unit Display (LCD)

START

STOP Button

Press to start and stop operation.

ACL Button

6 7

8 9

10 11

LOW MED

START STOP

TIME ADJUST

TEST RUN

HIGH

LOUVER

ACL

TIME

COOL

DRY

FAN

CONTROL

19 21 23 25 27

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.

TIME ADUST Button

LOUVER Button

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

FAN CONTROL Switch

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

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.

1 4

BACK

TIMER SET

TIME

START STOP

NON STOP CLOCK

SLEEP

TIMER

PROGRAM

OFF ON

Remote Control Unit Display

Indicates the timer setting.

Transmit Indicator

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

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.

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.

1 5

BACK

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

arrow to open it.

Press the TIME ADJUST button.

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

CLOCK

Insert batteries, taking care to align the and

polarities correctly.

Push the battery cover in the direction of the

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

CONTROL

TIME

START STOP

TIME ADJUST

LOW MED

HIGH

TEST RUN

ACL

TIME ADJUST button

The current time display will flash.

CLOCK

Press the SET TIME buttons to set the display

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.)

The current time display will flash.

CLOCK

TIMER SET

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

TIME

START STOP

BACK

Press the TIME ADJUST button once again.

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.

Installing the holder.

Setting the remote control unit.

Remote

Screw

(

medium

)

control unit

Machine screw (

)

small

Hook

Battery cover

THRTMOSTAT

MASTER CONTROL

FAN

CONTROL

AUTO AUTO

COOL

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

26 28

THRTMOSTAT

MASTER CONTROL

FAN

CONTROL

AUTO AUTO

COOL

19 21 23 25 27

DRY

FAN

LOW MED

HIGH

TIME ADJUST

TEST RUN

ACL

LOUVER

TIMER SET

TIME

START STOP

NON STOP CLOCK

22 24

26 28

THRTMOSTAT

MASTER

CONTROL

FAN

CONTROL

AUTO AUTO

COOL

19 21 23 25 27

DRY

FAN

LOW MED

HIGH

TIME ADJUST

TEST RUN

ACL

LOUVER

TIMER SET

TIME

START STOP

NON STOP CLOCK

22 24

28 30

BACK

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.

Press the START STOP button.

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

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

Setting temperature

Thermostat control

BACK

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,

TIMER SET

AUTO AUTO

MASTER CONTROL

THRTMOSTAT

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

20 22

19 21 23 25 27

FAN

CONTROL

26 28

LOW MED

ACL

HIGH

LOUVER

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).

The OPERATION indicator lamp will light.

To Set the Thermostat

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER CONTROL

THRTMOSTAT

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER CONTROL

THRTMOSTAT

Set the THERMOSTAT control to the desired position.

START STOP

TIME

TIME ADJUST

TEST RUN

COOL

DRY

FAN

22 24

19 21 23 25 27

FAN

CONTROL

26 28

LOW MED

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

22 24

19 21 23 25 27

FAN

CONTROL

LOW MED

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.

BACK

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

TIMER SET

AUTO AUTO

COOL

MASTER CONTROL

THRTMOSTAT

NON STOP CLOCK

TIMER SET

AUTO AUTO

MASTER CONTROL

THRTMOSTAT

NON STOP CLOCK

START STOP

TIME

TIME ADJUST

TEST RUN

DRY

FAN

CONTROL

22 24

19 21 23 25 27

FAN

LOW MED

28 30

ACL

HIGH

LOUVER

Press the START STOP button.

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

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

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

DRY

FAN

CONTROL

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.

BACK

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

TIMER SET

TIME

START STOP

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).

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

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.

BACK

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

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

or OFF ON as desired.

TIMER

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

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).

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

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

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

SLEEP.

SLEEP

TIMER

OFF

TIMER SET

TIME

START STOP

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-

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

Stop

BACK

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

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

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

OFF

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

Remote Controller Display

1.4.2 LIQUID CRYSTAL REMOTE CONTROLLER

START/STOP Button

Press to start and stop operation.

Operation Lamp

Lights up during operation and when the timer is on

LOUVER Button

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

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.

ZONE CONTROL Button

Use to turn the zone control on and off.

ZONE CONTROL Lamp

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

ENERGY SAVE Button

Turns the energy efficient mode on and off.

ENERGY SAVE Lamp

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

CLOCK ADJUST Button

TIMER MODE Button

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

SET TIME Button ( / )

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

SET TEMP. Button ( / )

Use to change the temperature setting.

FAN CONTROL Button

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

1 16

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

321

NAME AND FUNCTION OF PARTS

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).

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.

Operation Mode Display

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

Timer Mode Display

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

Fan Speed Display

Displays the current fan speed.

DEFROST Display

Displayed during defrosting.

TEST Display

Displayed during test operation.

PREPARATION

Set the Current Time

Press the CLOCK ADJUST button for more

than three seconds.

CLOCK

TIMER

SET

MODE

TIME

CLOCK ADJUST

ENERGY

SAVE

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

: 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

The current time display will flash.

Press the CLOCK ADJUST button again.

The current time display will stop flashing.

CLOCK

Example: Set the time to 9:31.

1 17

BACK

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

To Select AUTO CHANGEOVER Operation

Press the START/STOP button.

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

Press the MASTER CONTROL button to select AUTO.

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

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.

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

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

To Select Mode Operation

Press the START/STOP button.

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

Press the MASTER CONTROL button.

Select either HEAT or COOL.

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

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

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

Press the START/STOP button.

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

Press the MASTER CONTROL button to select FAN mode.

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.

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

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

ENERGY

SAVE

CLOCK

OFF TIMER

TIMER

TIMER MODE

Example: Setting the OFF TIMER

CLOCK ADJUST

SET

TIME

SET

TIME

TEMP

OFF ON

ON OFF

SET

TEMP

ZONE

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.

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.

: 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)

ENERGY

SAVE

ZONE

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

PROGRAM Timer/REPEAT Timer

CLOCK

TIMER

PROGRAM

TIMER MODE

CLOCK ADJUST

ENERGY

SET

TIME

SAVE

TEMP

OFF

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.

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"

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

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

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

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

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.

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.

30 min.

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.

0.5

Set to the ENERGY SAVE mode.

BACK

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

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

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

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

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

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