Hitachi RAK-50PXA, RAC-50WXA Operation Manual

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ENGLISHDEUTSCHFRANÇAISITALIANOESPAÑOL

PORTUGUÊS

Eλληνικά РУССКИЙ

SPLIT TYPE AIR CONDITIONER

INDOOR UNIT / OUTDOOR UNIT

MODEL

RAK-50PXA / RAC-50WXA

OUTDOOR UNIT INDOOR UNIT

RAC-50WXA

RAK-50PXA

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SAFETY PRECAUTION

O Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit. O Pay special attention to signs of “

Warning” and “!Caution”. The “Warning” section contains matters which, if not

observed strictly, may cause death or serious injury. The “Caution” section contains matters which may result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.

O The sign indicate the following meaning

O Please keep this manual after reading.

PRECAUTIONS DURING OPERATION

O Avoid an extended period of direct air  ow for your health.

A R N

I N G

O Do not insert a  nger, a rod or other objects into the air outlet or inlet. As the fan is rotating

at a high speed, it will cause injury. Before cleaning, be sure to stop the operation and turn the breaker OFF.

O Do not use any conductor as fuse wire, this could cause fatal accident.

PRECAUTIONS DURING SHIFTING OR MAINTENANCE

O Should abnormal situation arises (like burning smell), please stop operating the unit and turn

off the circuit breaker. Contact your agent. Fault, short circuit or  re may occur if you continue to operate the unit under abnormal situation.

OPlease contact your agent for maintenance. Improper self maintenance may cause electric

shock and  re.

OPlease contact your agent if you need to remove and reinstall the unit. Electric shock or  re

may occur if you remove and reinstall the unit yourself improperly.

OIf the supply cord is damaged, it must be replaced by the special cord obtainable at

authorized service/parts centers.

During thunder storm, disconnect and turn off the circuit breaker.

WARNING

PRECAUTIONS DURING INSTALLATION

O Do not reconstruct the unit.

Water leakage, fault, short circuit or  re may occur if you reconstruct the unit by yourself.

O Please ask your sales agent or quali ed technician for the installation of your unit. Water

leakage, short circuit or  re may occur if you install the unit by yourself.

O Please use earth line.

Do not place the earth line near water or gas pipes, lightning-conductor, or the earth

line of telephone. Improper installation of earth line may cause electric shock.

O Be sure to use the speci ed piping set for R410A. Otherwise, this may result in broken

copper pipes or faults.

O A circuit breaker should be installed depending on the mounting site of the unit. Without

a circuit breaker, the danger of electric shock exists.

O Do not install near location where there is  ammable gas. The outdoor unit may catch

 re if  ammable gas leaks around it.

O Please ensure smooth  ow of water when installing the drain hose. O Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its

mist  ows to the indoor unit. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance and may deform and in the worst case, break the plastic parts of the indoor unit.

CAUTION

Spray cans and other combustibles should not be located within a meter of the air outlets

of both indoor and outdoor units.

As a spray can’s internal pressure can be increased by hot air, a rupture may result.

Make sure to connect earth line. The sign in the  gure indicates prohibition.

Indicates the instructions that must be followed.

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ENGLISH

PRECAUTIONS DURING OPERATION

O Do not attempt to operate the unit with wet hands, this could cause fatal

accident.

O When operating the unit with burning equipments, regularly ventilate the

room to avoid oxygen insuf ciency.

O Do not direct the cool air coming out from the air-conditioner panel to face

household heating apparatus as this may affect the working of apparatus such as the electric kettle, oven etc.

O Do not use any aerosol or hair sprays near the indoor unit. This chemical

can adhere on heat exchanger  n and blocked the evaporation water  ow to drain pan. The water will drop on tangential fan and cause water splashing

out from indoor unit.

O Please ensure that outdoor mounting frame is always stable,  rm and

without defect. If not, the outdoor unit may collapse and cause danger.

O Do not splash or direct water to the body of the unit when cleaning it as

this may cause short circuit.

O When operating the unit with the door and windows opened, (the room humidity is always above

80%) and with the air de ector facing down or moving automatically for a long period of time, water will condense on the air de ector and drips down occasionally. This will wet your furniture. Therefore, do not operate under such condition for a long time.

O If the amount of heat in the room is above the cooling or heating capability of the unit (for

example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.

This appliance is not intended for use by young children or in rm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safely.

O Young children should be supervised to ensure that they do not play with the appliance.

O Do not climb on the outdoor unit or put objects on it.

O Please switch off the unit and turn off the circuit breaker during cleaning,

the high-speed fan inside the unit may cause danger.

O Turn off the circuit breaker if the unit is not to be operated for a long period.

C A U T

I O N

O The product shall be operated under the manufacturer speci cation and

not for any other intended use.

O Do not put water container (like vase) on the indoor unit to avoid water

dripping into the unit. Dripping water will damage the insulator inside the unit and causes short-circuit.

O Do not place plants directly under the air  ow as it is bad for the plants.

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INDOOR UNIT

NAMES AND FUNCTIONS OF EACH PART

Electrical Dust Collector

Negative ions are generated to capture all air-borne dirt and dust particle.

AIR PURIFYING FILTER

Pre- lter

To prevent dust from coming into the indoor unit.

FRONT PANEL

MOVEABLE PANEL

It will be open when the air conditioner is operate and close when the air conditioner is not in operation. (Occasionally it may not be open during the operating mode)

HORIZONTAL DEFLECTOR

VERTICAL

DEFLECTOR (AIR OUTLET)

Indoor unit indicators

Light indicator showing the operating condition.

WIDTH (mm)

795

MODEL

HEIGHT (mm)

295

DEPTH (mm)

198

MODEL NAME AND DIMENSIONS

Q Moveable Panel

O It will open up automatically when the air conditioner is in operation to allow a large quantity of air

 owing through as a sort of heat exchange; and it will close up automatically when the air conditioner stopped operating. Avoid physical adjustments as it may damage the panels’ mechanisms.

O Please do not touch the moving panels during operations as they may pinch your  ngers.

RAK-50PXA

REMOTE CONTROLLER

Send out operation signal to the indoor unit. So as to operate the whole unit. (Refer Remote control manual)

RAC-50WXA 792 600 299

OUTDOOR UNIT

Drain pipe

Condensed water drain to outside.

Connecting cord and insulation pipe for piping

Air inlet (Back, Right and Left side)

Air outlet

O Air purifying and deodorizing  lters are not washable and reusable up to 20 times by using vacuum cleaner or water

rinse under running tap water. Type number for this air cleansing  lter is <SPX-CFH22>. Please use this number for ordering when you want to renew it.

O Air purifying  lter should be cleaned every month or sooner if noticeable loading occurs. When used overtime,

it may loose its deodorizing function. For maximum performance, it is recommended to replace it every 1 year depending on application requirements.

NOTE

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ENGLISH

INDOOR UNIT INDICATORS

FILTER LAMP

When the device is operated for a total of about 200 hours, the FILTER lamp lights to indicate that it is time to clean the  lter. The lamp goes out when the “ (AUTO SWING)” button is pressed while the device is on “STANDBY MODE”.

OPERATION LAMP

This lamp lights during operation. The OPERATION LAMP  ashes in the following cases during heating.

(1) During preheating

For about 2–3 minutes after starting up.

(2) During defrosting

Defrosting will be performed about once every one hour when frost forms on the heat exchanger of the outdoor unit, for 5–10 minutes each time.

SIGNAL RECEIVING PORT

TIMER LAMP

This lamp lights when the timer is working.

OPERATION INDICATOR

TEMPORARY SWITCH

Use this switch to start and stop when the remote controller does not work.

O By pressing the temporary switch, the operation is done in previously set operation mode. O When the operation is done using the temporary switch after the power source is turned off and turn on

again, the operation is done in automatic mode.

TEMPORARY SWIT

Front panel

Moveable panel

Hand grip point

O Lift the front panel

Hand grip point

O Do not hold the moveable panel when

the front panel is in either opened/ closed position.

1. Opening up the front panel

O Never try to force open/close the moveable panel manually.

Manually opening or closing the moveable panel may cause breakdowns (The moveable panel will automatically close or open when the power supply is switched on or switched off and whenever the unit is in operations or has stopped operating.

CAUTION

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Minimum Maximum Minimum Maximum

Indoor Dry bulb °C 21 32 20 27

Wet bulb °C 15 23 12 19

Outdoor Dry bulb °C 21 43 2 21

Wet bulb °C 15 26 1 15

Cooling Heating

O Pull toward the down direction.

2. Closing the Front Panel

O When front panel is shaky, there is a possibility panel coming off

and falling down.

O Do not apply extra force on the front panel when it is opened up in

the upright position. Also frequent removal of the front panel from the front cover may cause damage.

CAUTION

O Initially press the left and the right sides of the front

panel and  nally press the central portion until you hear a clicking sound.

Note

O The recommended temperature range for safety testing should be as below:

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ENGLISH

PREPARATION BEFORE OPERATION

Ƶ To install the batteries

Ƶ To fix the remote controller holder to the wall

1. Slide the cover to take it off.

2. Install two dry batteries AAA.LR03 (alkaline). The direction of the batteries should match the

marks in the case.

3. Replace the cover at its original position.

1. Choose a place from where the signals can reach the unit.

2. Fix the remote controller holder to a wall, a pillar or similar location with the provided screws.

3. Place the remote controller in the remote controller holder.

NOTE

Notes on batteries

ƽ When replacing the batteries, use batteries of the same

type, and replace both old batteries together.

ƽ When the system is not used for a long time, take the

batteries out.

ƽThe batteries will last for approximately 1 year. However, if

the remote controller display begins to fade and degradation of reception performance occurs within a year, replace both batteries with new size AAA.LR03 (alkaline).

ƽThe attached batteries are provided for the initial use of

the system.

The usable period of the batteries may be short depending

on the manufactured date of the air conditioner.

Notes on the remote controller

ƽNever expose the remote controller to direct sunlight. ƽDust on the signal transmitter or receiver will reduce the

sensitivity. Wipe off dust with soft cloth.

ƽSignal communication may be disabled if an electronic-

starter-type uorescent lamp (such as inverter-type lamps) is in the room. Consult the shop if that is the case.

ƽ If the remote controller signals happen to operate another

appliance, move that appliance to somewhere else, or consult the service shop.

ƽ When the remote controller is not in use, please close the

slide cover to prevent failure.

Remote controller

Screws

Remote controller holder

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PREPARATION BEFORE OPERATION

Ƶ To set calendar and clock

1. Press (RESET) button when first time setting. "Year" blinks.

2. Press

(TIME) button to set the current year.

3. Press

(CLOCK) button. "Day" and "Month"

blink.

4. Press

(TIME) button to set the current day and

month.

5. Press

(CLOCK) button. "CLOCK" blinks.

6. Press

(TIME) button to set the clock to the current

time.

7. Press

(CLOCK) button.

Calendar and clock are set.

To modify the calendar and clock, press

(CLOCK) button. Then follow steps 1 to 7.

Calendar and clock need to be set again after

After changing the batteries,

1. Press

(RESET) button.

2. Direct remote controller towards indoor unit and

3. The calendar and clock from indoor unit will be transmitted.

Ƶ Calendar and clock will not be transmitted from indoor

unit when the following occurs:

ƽ When there is a power failure. ƽ When breaker is OFF by user (unit is not in STANDBY

MODE).

NOTE

Note on setting the calendar and clock.

ƽ If the calendar and clock are not set, the ON-timer, OFF-timer and Weekly Timer cannot be set. ƽ If the calendar and clock are not set correctly, the ON-timer, OFF-timer and Weekly Timer will not

operate correctly.

ƽ When the ON-timer, OFF-timer and Weekly Timer are set, the calendar and clock cannot be changed. If

changing batteries.

press (INFO) button.

there is a need to change the calendar and clock, ON-timer, OFF-timer and Weekly Timer need to be cancelled.

AIR PURIFYS

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ENGLISH

REMOTE CONTROLLER

ƽ This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is

controlled electronically, the range of control may be shorter.

be controlled from the remote controller.

ƽ Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission

capability.

ƽ After new batteries are inserted into the remote controller, the unit will initially require approximately 10

seconds to respond to commands and operate.

ƽ When remote controller is not in use for about 3 minutes during OFF condition, indicated by on the

display, the LCD will turn off.

ƽ During clock setting, the LCD will turn off about 10 minutes later if the remote controller is not in use. ƽ When pressing any button, the LCD will turn on. ƽ The LCD will not turn off during TIMER setting.

Signal Transmitting/Receiving Window

Point this window towards the indoor unit when controlling it.

Sensor

A temperature sensor inside the remote controller senses ambient temperature around the remotecontroller.

Display

This indicates the room temperature selected, current time, timer status, function and airflow rate selected.

ROOM TEMPERATURE setting Buttons

Press these buttons to set the room temperature.

Press the [

] button to raise the room

temperature.

Press the [

] button to lower the room

temperature.

Keep pressing and the value will change more quickly.

ECO Button

Use this button to set the ECO

START/STOP button

Press this button to start operation. Press it again to stop operation.

FAN SPEED selector Button

This determines the fan speed.

Every time you press this button,

the ange

from

(AUTO) (HIG H)

(MED) (LOW)

(SILENT) (This button allows

optimal or preferred

fan speed for each operation mode).

Transmission sign

The transmission sign lights up

䇆

NAMES AND FUNCTIONS OF REMOTE

when a signal is sent.

airflow rate will ch

selection of

CONTROLLER

ler

mode.( p.19 )

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MODE SELECTOR AUTO HEAT DEHUMIDIFY COOL FAN

FAN SPEED AUTO SILENT LOW MED HI

START / STOP

ECO

Precautions for Use

Do not put the remote controller in the following places.

Under direct sunlight.

In the vicinity of a heater.

Handle the remote controller carefully. Do not drop it on the floor, and protect it from water.

Once the outdoor unit stops, it will not restart for about 3 minutes (unless you turn the power switch

off and on or unplug the power cord and plug it in again).

This is to protect the device and does not indicate a failure.

If you press the MODE selector button during operation, the device may stop for about 3 minutes for

protection.

POWERFUL Button

Use this button to set the POWERFUL mode.

INFORMATION Button

ONE TOUCH CLEAN Button

ON / OFF TIMER setting Buttons

MODE selector Button

Use this button to select the operating mode. Every time you press this button, the mode will change from

(AUTO)

(HEAT)

(DEHUMIDIFY)

(COOL) and (FAN)

cyclically.

SILENT Button

Use this button to set the SILENT mode.

AUTO SWING (Vertical) Button

Controls the angle of the

.rotce lfed ria latnoziroh

AIR PURIFIER Button

WEEKLY TIMER setting Buttons

LEAVE HOME Button

ECO SLEEP TIMER Button

Use this button to set the eco sleep timer.

FAN

POWERFUL

SILENT

INFO

SLEEP TIMER

AUTO SWING (VERTICAL)

AIR PURIFIER

LEAVE HOME

CLEAN

DAY

PROGRAM NO.

ON / OFF TIMER

TIME

DELETE

COPY / PASTE

CANCEL

SEND

CLOCK

AIR PURIFYS

䇆

䇆䇆

Use this button to start air purifying function.

NAMES AND FUNCTIONS OF REMOTE CONTROLLER

( p.17)

( p.31)

( p.21)

( p.20 )

( p.22)

( p.23)

( p.18 )

( p.25)

( p.16)

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ENGLISH

AUTOMATIC OPERATION

The device will automatically determine the mode of operation, HEAT or COOL depending on the current room temperature. The selected mode of operation will change when the room temperature varies. However, the mode of operation will not change when indoor unit is connected to multi type outdoor unit.

VARIOUS FUNCTIONS

Ƶ Auto Restart Control

ƽ If there is a power failure, operation will be automatically restarted when the power is resumed with previous operation

mode and airflow direction.

(As the operation is not stopped by remote controller.)

ƽ If you intend not to continue the operation when the power is resumed, switch off the power supply.

When you switch on the circuit breaker, the operation will be automatically restarted with previous operation mode and air flow direction. Note: 1. If you do not require Auto Restart Control, please consult your sales agent.

2. Auto Restart Control is not available when

Timer or Sleep Timer mode is set.

Ƶ As the settings are stored in the memory the remote controller, you

(START/STOP) button next time.

Press the MODE selector button so that the display indicates the (AUTO) mode of operation.

ƽ When AUTO has been selected, the device will automatically

determine the mode of operation, HEAT or COOL depending on the current room temperature. However the mode of operation will not change when indoor unit is connected to multi type outdoor unit.

ƽ If the mode automatically selected by the unit is not satisfactory,

manually change the mode setting (HEAT, DEHUMIDIFY, COOL or FAN).

Press the (FAN SPEED) button to select AUTO, HI, MED, LOW or SILENT.

Press the

(START/STOP) button. Operation starts with a beep. Press the button again to stop operation.

Set the desired room temperature with the TEMPERATURE buttons (the display indicates the setting). The temperature setting and the actual room temperature may vary depending on conditions.

START

STOP

Set the desired FAN SPEED with the (FAN SPEED) button (the display indicates the setting).

AIR PURIFYS

only have to press the

(AUTO)

(HIGH)

(MED)

(LOW)

(SILENT)

– 12 –

HEATING OPERATION

ƽ Use the device for heating when the outdoor temperature is under 21°C.

When it is too warm (over 21°C), the heating function may not work in order to protect the device.

ƽ In order to maintain reliability of the device, please use this device when outdoor temperature is above -15°C.

Press the MODE selector button so that the display indicates (HEAT).

Set the desired FAN SPEED with the (FAN SPEED) button (the display indicates the setting).

Set the desired room temperature with the TEMPERATURE buttons (the display indicates the setting).

The temperature setting and the actual room temperature may vary depending on conditions.

Press the

(START/STOP) button. Heating operation starts with

a beep. Press the button again to stop operation.

Ƶ As the settings are stored in the memory of the remote controller, you only

have to press the (START/STOP) button next time.

Ƶ During AUTO fan, the fan speed automatically changes as below:

ƽWhen the difference between room temperature and setting temperature

is large, fan starts to run at HI speed.

ƽAfter room temperature reaches the preset temperature, fan speed

will be changed to lower speed to obtain optimum room temperature condition for natural healthy heating.

START

STOP

Ƶ Defrosting

Defrosting will be performed about once an hour when frost forms on the heat exchange of the outdoor unit, for 5~10 minutes each time. During defrosting operation, the operation lamp blinks in a cycle of 3 seconds on and 0.5 second off. The maximum time for defrosting is 20 minutes. However, if the indoor unit is connected to multi type outdoor unit, the maximum time for defrosting is 15 minutes. (If the piping length used is longer than usual, frost is likely to form.)

AIR PURIFYS

(AUTO)

(HIGH)

(MED)

(LOW)

(SILENT)

– 13 –

ENGLISH

DEHUMIDIFYING OPERATION

Ƶ Dehumidifying Function

ƽ When the room temperature is higher than the temperature setting: The device will dehumidify the

room, reducing the room temperature to the preset level. When the room temperature is lower than the temperature setting: Dehumidifying will be performed at the temperature setting slightly lower than the current room temperature, regardless of the temperature setting.

ƽ The preset room temperature may not be reached depending on the number of people present in the

room or other room conditions.

Set the desired room temperature with the ROOM TEMPERATURE setting buttons (the display indicates the setting).

The range of 20-26 C is recommended as the room temperature for dehumidifying.

Press the (START/STOP) button. Dehumidifying operation starts with a beep. Press the button again to stop operation.

ƵAs the settings are stored in the memory of the remote controller, you only

have to press the

(START/STOP) button next time.

START

STOP

Press the MODE selector button so that the display indicates

(DEHUMIDIFY). The fan speed is set at LOW. Press

(FAN SPEED) button to select SILENT or LOW fan

speed.

Use the device for dehumidifying when the room temperature is over 16°C. When it is under 15°C, the dehumidifying function will not work.

AIR PURIFYS

– 14 –

COOLING OPERATION

Use the device for cooling when the outdoor temperature is -10~ 43°C. If indoors humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.

Press the MODE selector button so that the display indicates (COOL).

Set the desired F

AN SPEED with the

(FAN SPEED) button (the

display indicates the setting).

Set the desired room temperature with the TEMPERATURE buttons (the display indicates the setting).

The temperature setting and the actual room temperature may vary depending on conditions.

Press the

(START/STOP) button. Cooling operation starts with a beep. Press the button again to stop operation. The cooling function does not start if the temperature setting is higher than the current room temperature (even though the

(OPERATION) lamp lights). The cooling function will start as soon as user set the temperature below the current room temperature.

Ƶ

As the settings are stored in the memory of the remote controller, you only have to press the

(START/STOP) button next time.

Ƶ During AUTO fan, the fan speed automatically changes as below:

ƽ When the difference between room temperature and setting tem-

perature is large, fan starts to run at HI speed.

ƽ After room temperature reaches the preset temperature, fan speed

will be changed to lower speed to obtain optimum room temperature condition for natural healthy cooling.

START

STOP

AIR PURIFYS

(AUTO)

(HIGH)

(MED)

(LOW)

(SILENT)

– 15 –

ENGLISH

FAN OPERATION

User can use the device simply as an air circulator.

START

STOP

Press the MODE selector so that the display indica set (FAN).

Press the

(START/STOP) button. Fan operation starts with

a beep. Press the button again to stop operation.

AIR PURIFYS

Set the desired FAN SPEED with the (FAN SPEED) button (the display indicates the setting).

(HIGH)

(MED)

(LOW)

(SILENT)

– 16 –

AIR PURIFYING OPERATION

Negative ions are gener at ed by the plasma electrode in the indoor unit. Dust, mold and odour particles are captured by negative ions and are caught by the stainless pre-filter.

Press the

“ ” is displayed on the LCD.

Press (AIR PURIFYING) button again.

Press (START/STOP) button. Or

AUTO SWING OPERATION

Vertic al

Vertical

about 15

about 60

about 45

about 30

When cooling, dehumidifying

When heating

AIR PURIFYS

(AIR PURIFYING) button during operation.

Ƶ To start AIR PURIFYING operation

“ ” disappears from the LCD.

ƽ

Ƶ To start Vertical Auto Swing

Ƶ To cancel Vertical Auto Swing

NOTE



During cooling and dehumidifying operation, do not keep the deflectors swinging or in the lower position (in the case of vertical auto swing) for a long time. It may cause dew condensation on the deflectors.

Press (AUTO SWING (VERTICAL)) button. The

deflector(s) will start to swing up and down.

󰷅󰷅is displayed on the LCD.

Press (AUTO SWING (VERTICAL)) button again. The

deflector(s) will stop in the current position.

󰷅󰷅 disappeared from the LCD.

Ƶ To cancel AIR PURIFYING operation

– 17 –

ENGLISH

POWERFUL OPERATION

ƽ By pressing (POWERFUL) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN

operation, the air conditioner performs at the maximum power.

ƽ During POWERFUL operation, cooler or warmer air will be blown out from indoor unit for COOLING

or HEATING operation respectively.

Ƶ To start POWERFUL operation

Ƶ To cancel POWERFUL operation

Press (POWERFUL) button during operation.

ƽ

“

” is displayed on the LCD.

POWERFUL operation ends in 20 minutes. Then the system automatically operates with the previous settings used before POWERFUL operation.

Press

(POWERFUL) button again.

POWERFUL operation stops.

“

” disappears from the LCD.

NOTE

ƽ When SLEEP mode, ECO mode, SILENT mode or LEAVE HOME mode is selected, POWERFUL

operation is cancelled.

ƽ During POWERFUL operation, capacity of the air conditioner will not increase

– if the air conditioner is already running at maximum capacity. – just before defrost operation (when the air conditioner is running in HEATING operation).

ƽ After auto restart, POWERFUL operation is cancelled and previous operation shall start.

For multi model connections, POWERFUL operation may not function depending on operation conditions.

AIR PURIFYS

Press (START/ STOP) button.Or

– 18 –

SILENT OPERATION

ƽ By pressing (SILENT) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN

operation, the fan speed will change to ultra slow.

Ƶ To start SILENT operation

Ƶ To cancel SILENT operation

Press (SILENT) button during operation.

ƽ

“ ” is displayed on the LCD. Fan speed will be ultra slow.

ƽ Press (START/STOP) button. Or

Press (SILENT) button again or (FAN SPEED)

button.

Fan speed will return to previous fan speed before SILENT

operation starts.

SILENT operation stops.

“

” disappears from the LCD.

NOTE

ƽ When POWERFUL operation is selected, SILENT operation is cancelled. Fan speed will return to

previous fan speed before SILENT operation.

ƽ After auto restart, SILENT operation is cancelled. Fan speed will return to previous fan speed before

SILENT operation.

ƽ During any operation with fan speed (SILENT), if press (SILENT) button, fan speed will

not change.

AIR PURIFYS

– 19 –

ENGLISH

ECO OPERATION

ƽ By pressing the (ECO) button during AUTO, HEATING,

DEHUMIDIFYING or COOLING operation, the air conditioner

performs the "ECO" operation.

Ƶ To start ECO operation

ƵTo cancel ECO operation

Press (ECO) button during operation.

ƽ

“ ” is displayed on the LCD.

Energy saving operation will start by changing the set temperature higher or lower automatically and reducing operation power consumption. This function may vary based on the connected outdoor unit.

ƽ Press (START/STOP) button. Or

ƽ Press (ECO) button again.

“

” disappears from the LCD.

NOTE

ƽ ECO function will not be effective when power consumption is low. ƽ By pressing (POWERFUL) button, ECO operation is cancelled. ƽ After auto restart, ECO operation is cancelled and previous operation mode shall start. ƽ For multi model connections, energy saving operation shall start only by changing set temperature higher

or lower automatically. However, effectiveness of ECO depends on operation conditions.

AIR PURIFYS

ECO operation is an energy saving function by changing set temperature automatically and by limiting the ma x imum power consumption value.

– 20 –

LEAVE HOME(LH) OPERATION

Ƶ To start LEAVE HOME operation

Press

(LEAVE HOME) button during stop or operation.

ƽ

Room temperature is set at 10°C and heating operation starts.

“

”, “ ”, “ ”, “ ” is displayed on the LCD.

Press

(LEAVE HOME) button during stop or operation.

Room temperature is set at 10°C and heating operation starts.

“

”, “ ”, “ ”, “ ” is displayed on the LCD.

ƽ Set number of operation days (1 to 99 days), if needed.

Press

(TIME) button to select number of days.

Number of days blink.

* Press “

(UP)” to set number of days from 1 day, 2 days, 3

days ..... 98 days, 99 days, 1 day and so on.

* Press “

(DOWN)” to set number of days from 99 days, 98

days, 97 days .... 3 days, 2 days, 1 day, 99 days and so on.

* Number of day is counted when clock indicates 0:00.

ƽ Press (SEND) button to con firm number of operation

days. Display for number of operation days will stop blinking.

ƽPress (CANCEL) button to reset number of operation

days or to have continuous operation.

Ƶ To cancel LEAVE HOME operation

ƽ Press (START/STOP) button. Or

Press

(LEAVE HOME) button again.

ƽ Change to other operation mode by pressing (MODE) button.

NOTE

ƽ After reaching the set number of operation days for Leave Home or by pressing the (Leave Home) button again,

ƽ During Leave Home operation, fan speed and horizontal air deflector position cannot be changed. ƽ By pressing (Leave Home) button, implementation of Weekly Timer or Once Timer only Timer is cancelled. ƽ In case of power supply shut down, after autorestart, all setting for number of days operation will be reset and unit

shall be in continuous operation.

ƽ

or AUTO mode, Leave Home operation cannot operate even though it is possible to set Leave Home operation.

In order to start Leave Home operation, all rooms must stop its operation. Then, press (LEAVE HOME) button to

operate Leave Home operation.

ƽ For multi connections, when all rooms are running HEATING operation, it is possible to operate Leave Home operation

by pressing the (LEAVE HOME) button.

ƽ For multi connections, if two or more rooms are set to operate Leave Home operation, the capability to reach the

set temperature at 10°C may not possible. In addition, this also depends on outdoor temperature.

Continuous operation

Day timer operation

AIR PURIFYS

Prevent the room temperature from falling too much by setting temperature automatically when no one is at home. This operation is able to operate by" Continuous operation" or " Day timer operation" . Please use " Day timer operation"

to set the number of days up to 99 days.

the unit will operate in previous mode.

Option 1. Continuous operation.

Option 2. Day timer operation.

10°C

ƽ

Return to previous operation mode. Or

oFor multi connections, when each room is running in different operation mode such as FAN only, COOLING, DEHUMIDIFYING

POWERFUL,SILENT and ECO operations are not applicable during Leave Home.

ƽ

– 21 –

ENGLISH

CLEAN (ONE TOUCH CLEAN) OPERATION

Drying indoor heat exchanger after cooling operation to prevent mildew.

Ƶ To start CLEAN operation

Ƶ To cancel CLEAN operation

ƽ Press (CLEAN) button when unit is OFF.

Total time taken for One Touch Clean operation is 60 minutes. During this operation, HEATING or FAN operation shall operate.

During one touch clean, operation lamp is blinking.

“

”, “ ” is displayed on the LCD.

ƽ Press (START/STOP) button. Or

ƽ Press (CLEAN) button again.

AIR PURIFYS

NOTE

ƽ When CLEAN operation finish, unit will switch OFF automatically. ƽ If Weekly Timer or Once Timer is set, there is a need to cancel those timer before operating CLEAN function.

ƽ For multi connections, when pressing (CLEAN) button, operation is limited to FAN operation. ƽ For multi connections, when one room operates CLEAN operation first, other rooms can operate

COOLING, DEHUMIDIFYING or FAN operation. However, when other rooms need to operate HEATING operation, air conditioner will be in STANDBY mode. After CLEAN operation finish, HEATING operation will start.

– 22 –

ONCE TIMER (ON/OFF TIMER) OPERATION

The device can be set to turn off at a preset time.

1. Press

(OFF-TIMER) button. and blink on the display.

2. Set the "turn-off time" with

(TIME) button.

3. After setting, direct the remote controller towards the indoor and press (SEND) button.

and "set time" lights up instead of blinking.

A beep sound emitted from indoor unit and the (TIMER) lamp on the

indoor unit lights up.

ON TIMER

The device will turn on at a designated time.

1. Press

(ON-TIMER) button. and blink on the display.

2. Set the "turn-on time" with

(TIME) button.

3. After setting, direct the remote controller towards the indoor and press (SEND) button.

and "set time" light up instead of blinking.

A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor

unit lights up.

ON/OFF TIMER

ƽ The device will turn on (off) and off (on) at the designated time. ƽ The switching occurs first at the preset time that comes earlier. ƽ The arrow mark appears on the display to indicate the sequence of switching

operations.

1. Press

(OFF-TIMER) button so that and blink on the

display.

2. Set the "turn-off" time with

(TIME) button. After setting, direct the remote

controller towards the indoor and press

(SEND) button.

3. Press

(ON-TIMER) button so that and set "turn-off" time light up.

The

and blink.

4. Set the "turn-on" time with

(TIME) button.

5. After setting, direct the remote controller towards the indoor and press (SEND) button

and set "turn-on" time light up instead of blinking.

A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor

unit lights up.

ƵThe timer may be used in three ways: OFF-timer, ON timer and ON/OFF (OFF/ON)-

timer. Set the current time first because it serves as a reference.

Ƶ To cancel Reservation

ƽ Point the signal window of the remote controller towards the indoor unit and press (CANCEL) button.

and "ON or OFF set time" goes out with a beep and the (TIMER) lamp on the indoor unit turns off.

NOTE

ƽ User can set only one of the OFF-timer, ON-timer or ON/OFF-timer. ƽ If WEEKLY TIMER already set, by setting the ONCE TIMER, ONCE TIMER operation

ONCE TIMER operation is complete, WEEKLY TIMER operation will be activated.

OFF TIMER

AIR PURIFYS

is prioriti z ed. When

– 23 –

ENGLISH

E C O SLEEP TIMER OPERATION

By pressing (SLEEP) button during AUTO, HEATING, DEHUMIDIFYING, COOLING or FAN operation,

Ƶ To start EC O SLEEP TIMER operation

Ƶ To cancel ECO SLEEP TIMER operation

Press (SLEEP) button during operation.

ƽ “ ”, “ ”, “ ”, “OFF”, off time, “ ” and number

of hour are displayed on the remote controller display.

ƽ During ECO SLEEP TIMER operation, fan speed will be ultra

ƽ A beep sound emitted from indoor unit and the (TIMER) lamp

on the indoor unit lights up.

Pressing

(SLEEP) button repeatedly, the number of hour

ƽ During ECO SLEEP TIMER operation, air conditioner will continue

to operate for the designated number of hours and then turn off.

ƽ When the ECO SLEEP TIMER has been set, the display on the

remote controller indicates the turn off time.

Press

(START/STOP) button.

ƽ Room air conditioner will switch off.

Press

(SLEEP) button again until “ ”, “ ”, “ ”,

off time, “

” and number of hour disappear from the remote

controller display.

Press

(CANCEL) button.

ƽ A beep sound emitted from indoor unit and the (TIMER) lamp

on the indoor unit turns off.

ƽ SLEEP TIMER operation is cancelled.

Example: If ECO SLEEP TIMER is set for 1 hour at 18:00, the switch off time will be at 19:00.

1 H 2 H 3 H 7 H

SLEEP TIMER off

AIR PURIFYS

.gni vas ygrene ni stluser tl .deeps naf eht secuder dna erutarepmet moor eht stfihs tinu eht

will change as below:

The timer can be set up to a duration of 7 hours.

slow.

Set the current time first before operating the ECO SLEEP TIMER operation.

– 24 –

Ƶ To set EC O SLEEP TIMER and ON TIMER

Ƶ To cancel EC O SLEEP TIMER and ON TIMER operation

The air conditioner will be turned off by ECO SLEEP TIMER and turned on by ON TIMER.

Set the ON TIMER.

2. Press

(SLEEP) button and set ECO SLEEP TIMER.

Direct the remote controller towards the indoor unit and press

(CANCEL) button.

ƽ “ ”, “ ”, “ ”, “OFF”, off time, “ ”, number of hour, "ON" and ON TIMER set time disappear

from the remote controller display.

ƽ A beep sound emitted from indoor unit and the (TIMER) lamp on the indoor unit turns off. ƽ P TIMER and ON TIMER reservations are cancelled.

30 minutes after setting ECO SLEEP TIMER, outdoor fan speed will be reduced to lower the noise level and to

1 hour after setting ECO SLEEP TIMER, set temperature will be slightly shifted. Amount of temperature

These automatic operation changes contribute to energy saving without losing comfort. The level of energy consumption depends on outside temperature, room temperature, set temperature or air conditioner type.

Cooling operation [diagram representation for illustrative purpose only]

In this case, air conditioner will turn off in 2 hours (at 1:38) and it will be turned on at 6:00 the next morning.

NOTE

ƽ If ECO SLEEP TIMER is set when OFF TIMER or ON/OFF TIMER has been set earlier, the ECO

Heating operation [diagram representation for illustrative purpose only]

Temperature

30 minutes

Outdoor fan

speed reduce

Shift

temperature

1 hour

Temperature

30 minutes

Outdoor fan

speed reduce

Shift

temperature

1 hour

EC O SLEEP TIMER OPERATION

Example:

have comfort operation.

shifted depends on type of air conditioner.

SLEEP TIMER becomes effective instead of the OFF TIMER or ON/OFF TIMER.

ECO SLEE

– 25 –

ENGLISH

ƽ If calendar and clock are not set, the reservation setting for WEEKL

ƽ lt is possible to select Mode A or Mode B.For each mode ,up to 6 programs can be set per day. ln total, a

maximum of 42 programs can be set for a week for each mode.

Y TIMER cannot be set.

ƽ If calendar and clock are not set correctly, WEEKLY TIMER will not operate correctly. ƽ Reservation for calendar and clock shall be set rst before operating WEEKLY TIMER.

WEEKLY TIMER OPERATION

Ƶ How to set a WEEKLY TIMER.

1. Select Mode A or Mode B.

Press

(WEEKLY) button. lights up. and blink on the

display. (Mode A is selected).

Press

(WEEKLY) button again, and blink on the display.

(Mode B is selected).

ƽ If no reservation has been made, ON/OFF, , appear. ƽ If reservation has been made, ON/OFF, , will not

appear.

Press

2. Set a program.

(WEEKLY) button for about 3 seconds. The selection mode

can be changed.

, day: Mon, program no. : 1, ON/OFF, setting time and setting

temperature blink on the display.

Press

3. Select the desired day of the wekk.

(DAY) button

The day changes from Mon

Tue Wed Thu Fri Sat Sun

Mon, Tue, Wed, Thu, Fri, Sat, Sun [Full days] Mon, Tue, Wed, Thu,

Fri [weekday]

Sat, Sun [weekend] Mon Tue ......

Select [Full days] for daily reservation. Select [weekday] for Monday to Friday reservation. Select [weekend] for Saturday and Sunday reservation.

ƽAfter reservation has been set, it is easy to check and edit at the same

time.

4. Press

button to select a program number.

The number changes from 1

2 3 4 5 6 1 2 .....

ƽ If program number has been set, follow above in order to make

changes.

Step 1: Set the reservation schedule to the remote controller. Send the registered reservation to indoor unit and then operate. Step 2: Select Mode A or Mode B and activate or deactivate WEEKLY TIMER . Step 3: Copy and cancel the reservation schedule.

Step 1: Set reservation schedule to the remote controller. Send the registered reservation

to indoor unit and then operate.

– 26 –

5. Press (ON-OFF TIMER) button to select ON TIMER or OFF TIMER

reservation.

6. Press

(TIME) button to set time reservation.

7. Press (TEMP

or ) button to set temperature reservation.

8. Press

(OK) button. The reservations are set. Day, program

number, ON reservation, setting temperature will light up.

will be continuously blinks. If reservation is not complete, settings will not be stored in memory.

To continue with the reservation, press

buttons.

Follow step 3 to 8 for reservation.

9. After all the reservations have been set, press

(SEND) button while directing the remote controller towards the indoor unit for about 3 seconds. Timer lamp on the indoor unit will blink rapidly.

After beep sound emitted from indoor unit, TIMER lamp will light up.

Please ensure that the TIMER lamp lights up.

This indicates that the reservation has been stored in the indoor unit and

Timer function has been completed.

The reservation contents will appear on the remote controller display.

If TIMER lamp on the indoor unit does not light up, press

(SEND) button while directing the remote controller towards the indoor unit for about 3 seconds.

CAUTION ! Do not press

(CANCEL) button during reservation

setting because this will result in all reservation contents to be lost.

The reservation contents will not stored in the indoor unit until

(SEND) button has been pressed.

NOTE

ƽ Up to 6 programs can be set per day. Setting ON TIMER or OFF TIMER for each program number can

be at random. When pressing

(SEND) button, the set ON TIMER or OFF TIMER for each program number will automatically arranged so that program number 1 shall have the earliest time and program number 6 shall have the latest time.

If the setting time is the same, Priority will be given to the latest reservation contents.

ƽ CAUTION ! If the remote controller is left idle and (SEND) button is not pressed within 3 minutes

after reservations have been made , all current reservations will be lost.

WEEKLY TIMER OPERATION

– 27 –

ENGLISH

Ƶ How to select Mode A or Mode B of WEEKLY TIMER setting.

1. Press

(WEEKLY) button. and blink on the display.

(Normally Mode A will blink first).

2. Press

(WEEKLY) button again. and blink on the display.

Select Mode A or Mode B. Press

(SEND) button while directing the remote controller towards the indoor unit for about 3 seconds. Timer lamp on the indoor unit will blink rapidly

After beep sound emitted from indoor unit,

TIMER lamp will light up.

3OHDVHHQVXUHWKDWWKH7,0(5ODPSOLJKWVXS

This indicates that Mode A or Mode B selection and active WEEKLY TIMER

have been conf

irmed.

Ƶ Setting non-active WEEKLY TIMER .

Direct the remote c

ontroller towards the indoor unit and press (CANCEL) button. Beep sound will be emitted from indoor unit and TIMER lamp will be OFF

Reservation indication on remote display will also disappear.

This indicates that non-active WEEKL

Y TIMER has been confirmed.

ƽ To activate back the setting of WEEKLY TIMER , repeat the steps for

"How to select Mode

A or Mode B of WEEKLY TIMER setting".

NOTE

ƽ When setting ONCE TIMER, operation of WEEKLY TIMER is interrupted. After ONCE TIMER operation

is complete, WEEKLY TIMER operation will be activated.

ƽ When ONCE TIMER is cancelled, operation of WEEKLY TIMER is also cancelled. Need to set WEEKLY

TIMER operation for activation.

ƽ After auto restart, WEEKLY TIMER operation is cancelled. Need to set WEEKLY TIMER operation for

activation.

WEEKLY TIMER OPERATION

Step 2: Select Mode A or Mode B and activate or deactivate WEEKLY TIMER.

– 28 –

Ƶ How to copy and paste.

Editing the reservation schedule is easy by copying data from one day to another day.

1. Press

(WEEKLY) button to select Mode A or Mode B.

2. Press

(WEEKLY) button for about 3 seconds to start editing the

reservation schedule.

3. Press

(DAY) button to select a day of the week to copy.

4. Press

(COPY/PASTE) button. Then "PASTE" blinks on the display.

* Press

(CANCEL) button to cancel the COPY mode. Normal

setting mode is activated.

5. Press

(DAY) button to select a day of the week to paste.

6. Press

(COPY/PASTE) button one more time to paste. only

blinks on the display.

7. To continue copying to other days, press

or or or

Then start from step 3.

8. After copy and paste completed, press

(SEND) button while

Timer lamp on the indoor unit will blink rapidly.

After beep sound emitted from indoor unit, TIMER lamp will light up.

Please ensure that the TIMER lamp lights up.

If TIMER lamp does not light up, Press

(SEND) button again.

ƽ Reservation data will not change if (SEND) button is not pressed.

Step 3: Copy and cancel the reservation schedule.

NOTE

ƽ If there is no reservation data, copying data from one day to another day cannot be done.

WEEKLY TIMER OPERATION

directing the remote controller towards the indoor unit for about 3 seconds.

– 29 –

ENGLISH

Step 3: Copy and cancel the reservation schedule.

Ƶ How to delete WEEKLY TIMER data.

[Delete one program number reservation]

1. Press

(WEEKLY) button to select Mode A or Mode B.

2. Press

(WEEKLY) button for 3 seconds to start editing the reserva-

tion schedule.

3. Press

(DAY) button to select a day of the week to edit.

4. Press

to select program number. Selected program number will

blink.

5. Press

(DELETE) button. Reservation of selected program number

is deleted.

6. After deleting, press

(SEND) button while directing the remote

controller towards the indoor unit for about 3 seconds. Timer lamp on

After beep sound emitted from indoor unit, TIMER lamp will light up.

Please ensure that the TIMER lamp lights up.

ƽ Reservation will not change if (SEND) button is not pressed.

WEEKLY TIMER OPERATION

the indoor unit will blink rapidly.

– 30 –

Step 3: Copy and cancel the reservation schedule.

[Delete one day reservation]

1. Press

(WEEKLY) button to select Mode A or Mode B.

2. Press

(WEEKLY) button for 3 seconds to start editing the

reservation schedule.

3. Press

(DAY) button to select a day of the week to edit.

Press

(DELETE) button for about 10 seconds. Reservations for all

program numbers will be deleted.

ƽ If press for a short time, reservation for one program number will be

deleted.

5. After deleting, press

(SEND) button while directing the remote

controller towards the indoor unit for about 3 seconds. T

imer lamp on

After beep sound emitted from indoor unit,

TIMER lamp will light up.

Please ensure that the TIMER lamp lights up.

ƽ Reservation will not change if (SEND) button is not pressed.

NOTE

transmitted to indoor unit. TIMER lamp will remain off and no changes will be done to the reservations stored in the indoor unit.

WEEKLY TIMER OPERATION

[Delete Mode A or Mode B]

1. Press

(WEEKLY) button to select Mode A or Mode B.

(DELETE) button for about 10 seconds while Mode A

or Mode B display blinks. After beep sound emitted from indoor unit, reservations for Mode A

Mode B will disappear

the indoor unit will blink rapidly.

If all reservations in the remote controller were deleted and pressed

(SEND) button, no signal will be

2. Direct the remote controller towards the indoor unit and press

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Hitachi RAK-50PXA, RAC-50WXA Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual