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Hitachi RAC-72CHA3, Instruction Manual

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Hitachi RAC-72CHA3 Instruction Manual Download Page 1

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SPLIT TYPE

INDOOR UNIT/OUTDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT

RAC-72CHA3

RAS-72CHA3

MODEL

RAS-72CHA3/RAC-72CHA3

Instruction manual

Page 1~22

To obtain the best performance and ensure years of trouble free use, please read this instruction
manual completely.

RAS/RAC-72CHA3 EN1

17/2/05, 4:12 PM

1

Summary of Contents for RAC-72CHA3

Page 1: ... UNIT INDOOR UNIT RAC 72CHA3 RAS 72CHA3 MODEL RAS 72CHA3 RAC 72CHA3 Instruction manual Page 1 22 To obtain the best performance and ensure years of trouble free use please read this instruction manual completely RAS RAC 72CHA3 EN1 17 2 05 4 12 PM 1 ...

Page 2: ...n 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 a...

Page 3: ...n the air deflector and drips down occasionally This 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...

Page 4: ...RONT PANEL AIR INLET 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 Drain pipe Condensed water drain to outside Connecting cord and insulation pipe for piping Air inlet Back and Left side Ai...

Page 5: ...e using the temporary switch after the power source is turned off and turn on again the operation is done in automatic mode OPERATION INDICATOR TIMER LAMP This lamp lights when the timer is working OPERATION LAMP This lamp lights during operation 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 filter The lamp go...

Page 6: ...nd the value will change more quickly SLEEP button Use this button to set the sleep timer 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 PARALLEL SWING button Controls the angle of the vertical air de...

Page 7: ...ith 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 the...

Page 8: ...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 temperature may vary somewhat d...

Page 9: ...ting 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 C Press the START STOP button Dehumidifying operation starts with a beep Press the bu...

Page 10: ...mmended 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 somewhat 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: ...operation The fan speed will automatically change according to the temperature of discharged air When the difference of room temperature and setting temperature is large fan starts to run at HI speed When the room temperature reaches setting temperature fan speed changes to LOW automatically When the difference of room temperature and setting temperature is large fan starts to run at HI speed Afte...

Page 12: ... 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 the OFF mark ...

Page 13: ...e device will turn off at 11 00p m Example The device will automatically turn on earlier so that the preset temperature can be reached 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 instead of flashing an...

Page 14: ...mp 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 remote controller tow...

Page 15: ...ll be set to LOW setting 30 minutes after the setting of the sleep timer Operation with the sleep timer The room temperature is kept at about 12 C minimum The room temperature is kept at about 25 28 C Sleep timer set 30 minutes later 1 hour later 3 hours later 7 hours later 2 hours later 5 C If date or current time is not set sleep timer can not be set If you set the sleep timer after the off on o...

Page 16: ...be swung up and down continuously and also set to the desired angle using the AUTO SWING button If the PARALLEL SWING button is pressed once the vertical air deflectors swing left and right to parallel If the button is pressed again the deflectors stop in their current position Several second about 6 seconds may be required before the deflectors start to move If the SYMMETRY SWING button is presse...

Page 17: ...nstall 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 RAS RAC 72CHA3 EN3 17 2 05 4 15 PM 17 ...

Page 18: ...gether 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 an...

Page 19: ...nsumes 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 Inverter type fluorescent lamp To prevent interference place at least 1m away TV Caution To avoid noise interference please place the indoor unit and its remote cont...

Page 20: ...ervice 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 the air cleansing and deod...

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

Page 22: ...aning 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 the inside to release it and while closing the front panel slightly put it out forward Attaching the Front Panel Move the proj...

Page 23: ...CE 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 by qualified service personal Before cleaning stop operation and switch off the power supply CAUTIO...

Page 24: ...rant 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 contact your sales agent ...

Page 25: ...nection point The user has to make sure that the unit will be operated only at a power supply network under this condition The power supply company will be able to inform you about the connection conditions 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 o...

Page 26: ... 26 MEMO RAS RAC 72CHA3 EN3 17 2 05 4 15 PM 26 ...

Page 27: ... H279 A Part No 17 2 05 4 16 PM 1 ...

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