Hitachi RAK-18NHA1 Instruction Manual Download Page 4 | Manualshive

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INDOOR UNIT

NAMES AND FUNCTIONS OF EACH PART

Air filter

To prevent dust from coming into the indoor unit.
(Refer page 21)

Front panel

Indoor unit indicators

Light indicator showing the operating condition.
(Refer page 5)

Horizontal deflector

●

Vertical deflector

(Air Outlet)

(Refer page 16)

Remote controller

Send out operation signal to the indoor unit. So as to
operate the whole unit.
(Refer page 6)

WIDTH (mm)

780

MODEL

RAK-18NHA1/RAK-25NHA1/RAK-35NHA1

HEIGHT (mm)

280

DEPTH (mm)

210

MODEL NAME AND DIMENSIONS

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Summary of Contents for RAK-18NHA1

Page 1: ...INDOOR UNIT MODEL RAK 18NHA1 RAK 25NHA1 RAK 35NHA1 Instruction manual Page 1 26 To obtain the best performance and ensure years of trouble free use please read this instruction manual completely INDOOR UNIT RAK 18NHA1 RAK 25NHA1 RAK 35NHA1 ...

Page 2: ... where there is flammable gas The outdoor unit may catch fire if flammable gas leaks around it Please ensure smooth flow of water when installing the drain hose CAUTION PRECAUTIONS DURING SHIFTING OR MAINTENANCE PRECAUTIONS DURING OPERATION Avoid an extended period of direct air flow for your health W A R N I N G Should abnormal situation arises like burning smell please stop operating the unit an...

Page 3: ... 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 infirm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safely You...

Page 4: ...ndicators Light indicator showing the operating condition Refer page 5 Horizontal deflector Vertical deflector Air Outlet Refer page 16 Remote controller Send out operation signal to the indoor unit So as to operate the whole unit Refer page 6 WIDTH mm 780 MODEL RAK 18NHA1 RAK 25NHA1 RAK 35NHA1 HEIGHT mm 280 DEPTH mm 210 MODEL NAME AND DIMENSIONS ...

Page 5: ...med about once every one hour when frost forms on the heat exchanger of the outdoor unit for 5 10 minutes each time TIMER LAMP This lamp lights when the timer is working TEMPORARY SWITCH TEMPORARY SWITCH Press Temporary Switch Non conductor Stick TEMPORARY SWITCH Use this switch to start and stop when the remote controller does not work Use non conductor stick example toothpick By pressing the tem...

Page 6: ...PERATURE buttons Use these buttons to raise or lower the temperature setting Keep pressed and the value will change more quickly TIME button Use this button to set and check the time and date RESET buttons FUNCTION selector Use this button to select the operating mode Every time you press it the mode will change from AUTO to HEAT to DEHUMIDIFY to COOL and to FAN cyclically FAN SPEED selector This ...

Page 7: ... with a beep Press the button again to stop operation You can raise or lower the temperature setting as necessary by maximum of 3 C Press the temperature button and the temperature setting will change by 1 C each time The preset temperature and the actual room temperature may vary somewhat depending on conditions The display does not indicate the preset temperature in the AUTO mode If you change t...

Page 8: ...d is HI at first and varies to MED or LOW automatically when the preset temperature has been reached HI Economical as the room will become warm quickly But you may feel a chill at the beginning MED Fan speed slow LOW Fan speed slower Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting The temperature setting and the actual room temperature may vary somew...

Page 9: ...he temperature setting The function will stop the indoor unit will stop emitting air as soon as the room temperature becomes lower than the setting temperature Set the desired room temperature with the TEMPERATURE button 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 b...

Page 10: ...ED Fan speed slow LOW Fan speed slower Set the desired room temperature with the TEMPERATURE button the display indicates the setting The temperature setting and the actual room temperature may vary some how 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...

Page 11: ...rature and setting temperature is large fan starts to run at HI speed After room temperature reaches the preset temperature the cooling operation which changes the fan speed and room temperature to obtain optimum conditions for natural healthful cooling will be performed For the cooling operation FAN OPERATION You can use the device simply as an air circulator Use this function to dry the interior...

Page 12: ...EL button The RESERVED sign goes out with a beep and the TIMER lamp turns off on the indoor unit 1 Set the current month and day with the TIMER control button 1 Press the OFF TIMER button The OFF mark blinks on the display 1 Press the ON TIMER button the ON mark blinks on the display 2 Set the turn off time with the TIMER control button Press the RESERVE button 3 Press the ON TIMER button so that ...

Page 13: ...e with the TIMER control button The setting of turn off time is now complete Example The device will turn off at 11 00p m Example The device will turn on at 7 00 a m The setting of the turn on time is now complete 4Set the turn on time with the TIMER control button 5 Point the signal window of the remote controller toward the indoor unit and press the RESERVE button The ON mark starts lighting ins...

Page 14: ...ller The TIMER lamp lights with a beep from the indoor unit When the sleep timer has been set the display indicates the turn off time Example If you set 3 hours sleep time at 11 38 p m the turn off time is 2 38 a m 2 Press the SLEEP button and set the sleep timer The device will be turned off by the sleep timer and turned on by on timer How to Cancel Reservation Point the signal window of the remo...

Page 15: ...set sleep timer can not be set If you set the sleep timer after the off on off or off on timer has been set the sleep timer becomes effective instead of the off on off or off on timer set earlier You can not set other timer during sleep timer operation After sleep timer time is up and when press sleep button again the sleep timer will be set as last setting Sleep timer effective only once NOTE ...

Page 16: ...usting range shown on the right When the operation is stopped the horizontal air deflector moves and stops at the position where the air outlet closes CAUTION In Cooling operation do not keep the horizontal air deflector swinging for a long time Some dew may form on the horizontal air deflector and dew may drop RESET Adjustment of the conditioned air in the upward and downward directions The horiz...

Page 17: ...t the old batteries 2 Install the new batteries The direction of the batteries should match the marks in the case 1 Do not use new and old batteries or different kinds of batteries together 2 Take out the batteries when you do not use the remote controller for 2 or 3 months CAUTION Push and pull to the direction of arrow ...

Page 18: ...with your wake up time in the morning This will enable you to enjoy a comfortable room temperature Please use the timer effectively Dusty air filter will reduce the air volume and the cooling efficiency To prevent from wasting electric energy please clean the filter every 2 weeks Please pay attention to the room temperature and air flow direction when operating the unit for baby children and old f...

Page 19: ...to be used for a long period of time please switch off the power from the mains If the power from mains remains ON the indoor unit still consumes about 8W in the operation control circuit even if it is in OFF mode Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from the socket OFF Interference From Electrical Products Caution To avoid noise int...

Page 20: ...ied out only by qualified service personal Before cleaning stop operation and switch off the power supply CAUTION CAUTION Do not bend the air cleansing and deodorizing filter as it may cause damage to the structure NOTE In case of removing the air cleansing and deodorizing filters please follow the above procedures The cooling capacity is slightly weakened and the cooling speed becomes slower when...

Page 21: ...with soft bristle brush Allow filters to dry in shade 3 Re insert the air cleansing and deodorizing filter to the filter frame Set the filter with FRONT mark facing front and slot them into the original state After attaching the filters push the front panel at three arrow portions as shown in figure and close it CAUTION Do not wash with hot water at more than 40 C The filter may shrink When washin...

Page 22: ...he front panel with both hands to detach and attach it CAUTION Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit Never use hot water above 40 C benzine gasoline acid thinner or a brush because they will damage the plastic surface and the coating Removing the Front Panel When the front panel is fully opened with both hands push the right arm to t...

Page 23: ... BY QUALIFIED SERVICE PERSONAL EITHER EVERY HALF YEARLY OR YEARLY CONTACT YOUR SALES AGENT OR SERVICE SHOP Is the earth line disconnected or broken Is the mounting frame seriously affected by rust and is the outdoor unit tilted or unstable Is the plug of power line firmly plugged into the socket Please ensure no loose contact between them Air Blow Cleaning and maintenance must be carried out only ...

Page 24: ...ng noise of refrigerant in the refrigerating cycle 2 Slight rubbing noise from the fan casing which is cooled and then gradually warmed as operation stops The odor will possibly be emitted from the room air conditioner because the various odor emitted by smoke foodstuffs cosmetics and so on sticks to it So the air filter and the evaporator regularly must be cleaned to reduce the odor Please contac...

Page 25: ...Supply Companies are to be observed 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 Note Avoid to use the room air conditioner for cooling operation when the outside temperature is below 10 C 14 F The recommended maximum and minimum operating temperatures of the hot and cold sides should be as below Cooling He...

Page 26: ... 26 MEMO ...

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