Hitachi RAC-18KH Instruction Manual Download Page 1

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ENGLISH

INDOOR UNIT/OUTDOOR UNIT

MODEL

RAS-18KH

(T1)

/RAC-18KH

RAS-24GH4

(T1)

/RAC-24GH4

OUTDOOR UNIT

INDOOR UNIT

Instruction manual

Page 1~24

To obtain the best performance, please read this instruction manual completely.

RAS-18KH

(T1)

SPLIT TYPE AIR CONDITIONER

RAS-24GH4

(T1)

RAC-18KH/RAC-24GH4

RAS-18KH-24GH4(T1) (1).indd 1

5/12/10 11:03 AM

Summary of Contents for RAC-18KH

Page 1: ...UTDOOR UNIT INDOOR UNIT Instruction manual Page 1 24 To obtain the best performance please read this instruction manual completely RAS 18KH T1 SPLIT TYPE AIR CONDITIONER RAS 24GH4 T1 RAC 18KH RAC 24GH4 RAS 18KH 24GH4 T1 1 indd 1 RAS 18KH 24GH4 T1 1 indd 1 5 12 10 11 03 AM 5 12 10 11 03 AM ...

Page 2: ...occur if you continue to operate the unit under abnormal situation Please contact your agent for maintenance Improper self maintenance may cause electric shock and fire Please contact your agent if you need to remove and reinstall the unit Electric shock or fire may occur if you remove and reinstall the unit yourself improperly Do not insert a finger a rod or other objects into the air outlet or i...

Page 3: ...his will wet your furniture Therefore do not operate under such condition for a long time 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 Do not climb on the outdoor unit or put objects on it Please switch off the unit and turn off the c...

Page 4: ...e the whole unit Refer page 6 OUTDOOR UNIT Drain pipe Condensed water drain to outside Connecting cord and insulation pipe for piping Air inlet Back and Left side Air outlet WIDTH mm 1030 850 MODEL RAS 18KH T1 RAS 24GH4 T1 RAC 18KH RAC 24GH4 HEIGHT mm 295 650 DEPTH mm 207 298 MODEL NAME AND DIMENSIONS CAUTION When heating operation drain or defrosted water flows out from outdoor unit Don t close d...

Page 5: ...PERATION LAMP This lamp lights during operation The OPERATION LAMP flashes 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 an 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 FILTER LAMP When th...

Page 6: ...o 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 determines the fan speed Every time you press this button the intensity of circulation will change from AUTO to HI to MED to LOW during the FAN mode from HI to MED to LOW AUTO SWING button Controls the angle of the horizontal air deflector T...

Page 7: ...he 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 the setting the indoo...

Page 8: ... will become warm quickly But you may feel a chill at the beginning MED Quiet LOW More quiet Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting The range of 18 22 C is recommended as the room temperature for heating If the temperature setting is 20 C the room temperature will be controlled at around 20 C The temperature setting and the actual room tempe...

Page 9: ...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 beep Press the button again to stop operation 2 As the settings are stored in memory in the remote controller you only have to press the START STOP button next time START STOP Press the FUNCTION sele...

Page 10: ...nge of 25 28 C is recommended as the room temperature for cooling If the temperature setting is 27 C the room temperature will be controlled at around 27 C 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 t...

Page 11: ...ts 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 of the indoor unit at the end of summer Press t...

Page 12: ...h 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 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 remote controller toward the indoor unit and press the CANCEL button The RESERVED s...

Page 13: ...g of the sleep timer Fan Heating The room temperature will be controlled 5 C below the temperature and the FAN SPEED will be set to LOW setting 30 minutes after the setting of the sleep timer Operation with the sleep timer If date or current time is not 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 inst...

Page 14: ... ON OFF timer The device will turn on at the designated times TIME DAY MONTH current time day month OFF TIMER ON TIMER RESERVE CANCEL 1 Press the ON TIMER button the ON mark blinks on the display 1 Press the ON OFF button so that the OFF mark blinks 2 Set the turn off time with the TIMER control button Press the RESERVE button 3 Press the ON TIMER button so that the OFF mark lights and the ON mark...

Page 15: ...on 3 Point the signal window of the remote controller toward the indoor unit and press the RESERVE button The ON mark starts lighting instead of flashing and the RESERVED sign lights A beep occurs and the TIMER lamp lights on the indoor unit 2Set the turn on time with the TIMER control button Example The device will turn off at 10 30 p m and then automatically turn on earlier so that the preset te...

Page 16: ...e adjusting 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 Adjustment of the conditioned air in the upward and downward directions The horizo...

Page 17: ...tall 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 RAS 18KH T1 24GH4 2 indd 17 RAS 18KH T1 24GH4 2 indd 17 5 12 10 10 22 AM 5 12 10 10 22 AM ...

Page 18: ...fectively 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 folks who have difficulty in movement THE IDEAL WAYS OF OPERATION Caution Do not close the room for a long period of time O...

Page 19: ...ference From Electrical Products Caution If the amount of heat in the room is above the cooling capability of the air conditioner for example more people entering the room using heating equipments and etc the preset room temperature cannot be achieved Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from the socket Caution To avoid noise interfe...

Page 20: ...eaning 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 the air cleansing and deodorizing filters are used ...

Page 21: ...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 washing it shake off moisture completely and...

Page 22: ...tach 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 Arm When the front panel is fully opened with both hands push the right arm to the inside to release it and whil...

Page 23: ... 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 Cleaning and maintenance must be carried out only by qualified service personal Before cleaning ...

Page 24: ... regularly must be cleaned to reduce the odor Please contact your sales agent immediately if the air conditioner still fails to operate normally after the above inspections Inform your agent of the model of your unit production number date of installation Please also inform him regarding the fault Power supply shall be connected at the rated voltage otherwise the unit will be broken or could not r...

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