RAS35YHA User manual
Contents
1. 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 Avoid an extended period of direct air flow for your health A PROHIBITION WARNING Do not connect the power calbe with an extension cable or do not plug too many leads of the other electric appliance into the socket where this cable is plugged In addition wire the cable with some allowances to prevent the cable from stretching Not doing so will cause an electrical shock heat generation or fire PROHIBITION C 7 Do not bundle the power cable pull it put something on it heat it process it or put it between things Breakage of the power cable may result Use of a damaged cable may cause an electrical shock or a fire PROHIBITION E Do not put objects like thin rods into the panel of blower and suction side because the high speed fan inside may cause danger PROHIBITION A CAUTION PRECAUTIONS DURING OPERATION e Do not use any conductor as fuse wire this could cause fatal accident aS al During thunder storm disconnect the plug top or turn off the circuit breaker N Sy Sy outlets of both indoor and outdoor units e Spray cans and other combustibles should not be located within a meter of the air O As a spray ca2. This lamp lights during operation The OPERATION LAMP flashes in the following cases during heating re 1 DURING PREHEATING For about 2 3 minutes after starting up 2 DURING DEFROSTING N Y Defrosting will be performed aboutonce an hourwhen frost forms on the heat exchanger of the outdoor unit for 5 10 minutes each time TIMER LAMP Orange This lamp lights when the timer is working TEMPORARY SWITCH E Use this switch to start and stop when the remote controller does not work E This temporary operation will be at the most recent setting made The unit will immediately go into automatic operation once power is switched on A caution Turn off the circuit breaker or pull out the power plug if the unit is not be operated for a long period YY If the power stays on and the unit is not operated power is slightly consumed in the control circuit The power is saved by turning off the power switch or the circuit breaker when the power is supplied from the outdoor unit E Attaching the air cleansing and deodorizing filters Accessories to the filter frame Attach the air cleansing and deodorizing filters to the frame by gently compress its both sides and release after insertion into filter frame Thecooling capacity is slightly weakened andthe cooling speed becomes slower when the air cleansing a
3. button is order to use the same settings next time 13 HOW TO SET THE SLEEP TIMER Set the current time at first if it is not set before see the pages for setting the current time Press the SLEEP button and the display changes as shown below Sleep Timer 1hour 2hours 3 hours 7 hours er Sleep timer off poe Sleep Timer The device will continue working for the desired number of hours and then turn off SLEEP Point the signal window of the remote controller toward the indoor unit and press the SLEEP button The timer information will be displayed on the remote controller 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 AM AeA Example If you set 3 hours sleep 7 ee time at 11 38 p m the turn off time H O is 2 38 a m Sleep The device will be turned off by the sleep timer timer gt and turned on by on timer 1 Set the ON timer 2 Press the SLEEP button and set the sleep timer ra AM wer Ra I For heating Lo In this case the device will turn off in 2 hours at 1 38 a m and turn on earlyso that the preset temperature will be almost reached at 6 00 next morning How to Cancel Reservation Point the signal window of the remote controller toward the indoor unit and press the O CANCEL button The amp RESERVED sign goes out with a beep and the amp TIMER lamp turns off on the ind
4. change by 1 C each time The preset temperature and the actual room temperature may vary somewhat depending on conditions Press the FAN SPEED button AUTO and LOW is available HEATING OPERATION 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 In order to keep reliability of the device please use this device above 10 C of the outdoor temperature HITACHI Press the FUNCTION selector so that the display indicates O HEAT Set the desired FAN SPEED with the Y FAN SPEED button the display indicates the setting AUTO The fan speed changes automatically according to the temperature of the air which blows out A HI Economical as the room will become warm quickly But you may feel a chill at the beginning lt MED Quiet LOW More quiet HITACHI Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting The temperature setting and the actual room temperature may vary somewhat depending on conditions Press the START STOP button Heating operation starts with a beep Press the button again to stop operation As the settings are stored in memory in the remote controller you only have to press the START STOP button next time Defrosting Defrost
5. the current month and day with the TIMER control button After you change the 1 Press the O OFF TIMER but ton The O OFF mark blinks on the display 1 pesne 1 ON TIMER but ton The ON mark blinks on the display 2 Set the turn off time 3 Press the I ON TIM with the TIMER control ER button so that the O button OFF mark lights and the Press the I RESERVE ON mark blinks button 1171 2771 PMILI IL LO ODO ro os Point the signal window of the remote controller toward the indoor unit and press the O CANCEL button The RESERVED sign goes out with a beep and the TIMER lamp turns off on the indoor unit NOTE You can set only one of the OFF timer ON timer and ON OFF timer 2 Set the TIME button Vly PORN gt o gt C C 2 Set the turn off time with the TIMER conirol button 2 Set the turn on time with the TIMER conirol button 4 Set the turn on time with the TIMER control button 3 Set the current time with the TIMER control button N Vly O m Vv lt j EJ J IL PM 4 Press the TIME button again The time indication starts The time indication will dis lighting instead of flashing b ee 27 PM IL Example The current time is 1 30p m press the RESERVE button The OFF mark starts lighting instead of flashing and the RESERVED appear au
6. HITACHI Inspire the Next SPLIT TYPE AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT MODEL HFC RAS 25YHA RAC 25YHA RAS 35YHA RAC 35YHA INDOOR UNIT OUTDOOR UNIT GES NZ SN EN W AN AD y RAC 25YHA RAC 35YHA Instruction manual To obtain the best performance and ensure years of trouble free use please read this instruction manual completely SAFETY PRECAUTION Please read the Safety Precaution carefully before operating the unit to ensure correct usage of the unit Pay special attention to signs of A Warning and A 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 The signs indicate the following meanings The following are examples of signs O This sign in the figure indicates prohibition indicates the instructions that must be followed Please keep this manual after reading PRECAUTIONS DURING INSTALLATION Do not reconstruct the unit Water leakage fault short circuit or fire may occur if you reconstruct the unit by yourself PROHIBITION Please ask your sales agent or qualified technician for the installation of your unit A Water leakage short circuit o
7. INTS Do the batteries need replacement Is the polarity of the inserted batteries correct When it does not operate gt Is the fuse all right Is the voltage extremely high or low Is the circuit breaker ON Is the power plug inserted Do you have any power cut When it does not cool well When it does not heat well Is the air filter blocked with dust Is the set temperature suitable Have the top and bottom air deflectors been adjusted to their correct positions according to the operation mode selected Are the air inlets or air outlets of indoor and outdoor units blocked Is the fan speed LOW The following phenomena do not indicate unit failure During heating the operation indicator blinks and air blow stops lt Operation start gt The unit is preparing to blow warm air Please wait lt ln operation gt The outdoor unit is defrosting Please wait Hissing or fizzy sounds Refrigerant flow noise in the pipe or valve sound generated when flow rate is adjusted Squeaking noise Noise generated when the unit expands or contracts due to temperature changes Rustling noise Noise generated with the indoor unit fan s rpm changing such as operation start times Clicking noise Noise of the motorized valve when the unit is switched on f Noise of the ventilation fan sucking in air present in the drain hose and blowing out Perking noise de
8. PERATION Use the device for cooling when the outdoor temperature is 22 42 C If humidity is very high over 80 indoors some dew may form on the air outlet grille of the indoor unit HITACHI Press the FUNCTION selector so that the display indicates COOL Set the desired FAN SPEED with the FAN SPEED button the display indicates the setting AUTO The FAN SPEED is HI at first and varies to MED automatically when the preset temperature has been reached G M HI Economical as the room will become cool quickly Quiet More quiet razan oy EZ E HITACHI Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting 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 is higher than the current room temperature even though the OPERATION lamp lights The cooling function will start as soon as you set the temperature below the current room temperature As the settings are stored in memory in the remote controller you only have to press the START STOP button next time 10 FAN OPERATION You can use the device simply as an air circulator Use this function to dry the interior of the indoor unit at th
9. R lamp of the indoor unit lights e If the SLEEP button is pressed while the ON OFF timer is programmed the sleep timer takes priority e During sleep timer operation the fan speed sets to LOW regardless of the preset speed The remote controller display indication will remain unchanged even with the LOW setting 18 REGULAR INSPECTION ie See gt ee Sn EEE uns Sn De EEE EEE PLEASE CHECKTHE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP A WARNING Check to see if the unit s earth line has been connected correctly If the earth line is disconnected or faulty unit failure or electric shock hazard may result A WARNING Check to see if the mounting frame has rusted excessively or if the outdoor unit has tilted or become unstable It could collapse or fall causing injury A WARNING Check to see if the power plug is securely inserted into the wall socket If the power plug is not inserted into the wall socket securely it will become hot and an electric shock or fire may occured If dust or dirt is found on the power plug clean the plug and insert it into the wall socket AFTER SALES SERVICE AND WARRANTY WHEN ASKING FOR SERVICE CHECK THE FOLLOWING POINTS CONDITION If the remote controller is not transmitting a signal Remote controller display is dim or blank CHECK THE FOLLOWING PO
10. ately if the fol normally after performing lowing phenomena should occur the above inspections turn The circuit breaker switches off or the fuse blows the circuit breaker off and frequently ed contact your sales agent im The switch operation is not stable mediately Foreign matter or water accidentally enters the unit interior The power cord gets excessively hot or its insulation is torn or stripped TIMER lamp on the indoor unit display blinks As the nature of the failure can be identified by the blinking cycle check the blinking cycle before turning off the circuit breaker Notes In quiet operation or stopping the running the following phenomena may occasionally occur but they are not abnormal for the operation 1 Slight flowing noise of refrigerant in the refrigerating cycle 2 Slightrubbing 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 please clean the air filter and the evaporator regularly 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 Please note On switching on the equipment parti
11. cularly when the room light is dimmed a slight brightness fluctuation may occur This is of no consequence The conditions of the local Power Supply Companies are to be observed MEMO MEMO MEMO lt 447 gt
12. e The selected mode of operation will change when the room temperaturevaries varies HITACHI Press the FUNCTION selector so that the display indicates the U AUTO mode of operation When AUTO has been selected the device will automaticallydetermine the mode of operation HEAT or COOL dependingon the current room temperature When AUTO is first selected the device will determine thecurrent room temperature and select the proper operationmode accordingly When the air conditioner has adjusted the room s temperatureto the near preset temperature it will begin to monitoroperation If the room temperature subsequently changes the air conditioner will once again select the appropriateoperation heating or cooling to adjust the temperature tothe preset temperature The monitoring operation range is 3 C relative to the preset temperature If the mode automatically selected by the unit is notsatisfactory manually change the mode setting heat dehumidify cool or fan Press the START STOP button Operation starts with a beep Press the button again to stop operation en As the settings are stored in memory in the remote controller you only have to press the START STOP button next time You can raise or lower the temperature setting as necessary by maximum of 3 C Ne C Press the temperature button and the temperature ve setting will
13. e end of summer HITACHI Press the FUNCTION selector so that the display indicates FAN Press the FAN SPEED button HI The strongest air blow MED Quiet LOW More quiet ID Jil Im Press the START STOP button Fan operation starts with a beep Press the button again to stop operation The fan speed will automatically change according to the temperature of discharged air As room temperature reaches the preset temperature a very light breeze will blow For the heating operation Operation starts in the HI mode to reach the preset temperature As room temperature approaches the preset temperature fan speed au tomatically switches to LOW For the cooling operation side HOW TO SET THE TIMER TIME DAY MONTH current time day month batteries OFF TIMER ON TIMER RESERVE CANCEL designated times ON OFF Timer ar ZZ Sir The device will turn on off and 1 Press the O ON OFF button so that the O OFF mark blinks off on at the designated times gt Fo m LLL The switching occurs first at the Om 20 preset time that comes earlier EP AS The arrow mark appearing on the display indicates the sequence of switching operations How to Cancel Reservation Time Day Month h You can set the device to turn off at the present time The device will turn on at the san 1 Set
14. humidifying water that had accumulated in the condensed water collector For details consult your sales agent Operation noise changes due to power variations according to room temperature changes Mist emission Mist is generated as the air within the room is suddenly cooled by conditioned air Steam emitted from the outdoor unit Water generated during defrosting operation evaporates and steam is emitted Changing operation noise Caused as the smells and particles of smoke food cosmetics etc present in room air become attached the unit and blown off into the room again Odors Defrosting is underway as the heating operation is stopped the microcomputer checks frost accumulated in the indoor unit and instructs the unit to perform automatic defrosting if necessary The outdoor unit continues to operate even if operation is stopped Shows preheating or defrosting operation is underway The OPERATION lamp is blinking As the protective circuit or preheat sensor operates when unit operation is stopped during preheating and then restarted or when operation mode is switched from cooling to heating the lamp continues to blink Does not reach the temperature Actual room temperature may deviate slightly from the remote controller s setting temperature setting depending on the number of people in the room indoor or outdoor conditions If the unit still fails to operate Contact your sales agent immedi
15. iel about 60 left endof the air deflector to adjust the direction The pull for the blade is marked right endof the air deflector to adjust the direction The pull for the blade is marked When heating Vertical When cooling dehumidifying Vertical abot 15 about 45 HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER Remove the cover as shown in the figure and take out the old batteries 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 Push and pull to the direction of arrow together 2 Take out the batteries when you do not use the remote controller for 2 or 3 months MAINTENANCE Cleaning and maintenance must be carried out only by qualified service personal Before cleaning stop operation and switch off the power supply 1 AIR FILTER Es When the filter indicator lamp comes on be sure to clean the filter By doing so the power rates aresaved In case the air filter is full of dust the air flow will decrease and the cooling capacity will bereduced Further noise may occur Be sure to clean the filter following the procedure below PROCEDURE D 2 Open the front panel carefully and remove the filter Vacuum dust fr
16. ing 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 cycle of 3 seconds on and 0 5 second off The maximum time for defrosting is 20 minutes If the piping length used is longer than usual frost will likely to form DEHUMIDIFYING OPERATION 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 HITACHI Press the FUNCTION selector so that the display indicates O DEHUMIDIFY The FAN SPEED is set at LOW automatically The FAN SPEED button does not work Press the START STOP button When you want to change the operation mode please use the FUNCTION selector Set the desired temperature is available You also can use the FUNCTION selector to select this operation Dehumidifying Function Dehumidifying takes place with a target temperature which is slightly lower than the room temperature setting However target temperature is 16 C for a temperature setting of 16 C If the room temperature becomes lower than the target value operation stops If the room temperature be comes higher than the target value operation restarts The preset room temperature may not be reached depending on the number of people present in the room or other room conditions COOLING O
17. l Lower section of the side MODEL NAME AND DIMENSIONS Remote controller Send out operation signal to the indoor unit So as to operate the whole unit Refer page 6 Drain hose Drains the dehumidified water from the indoor unit to the outdoor during cooling or dehumidifying operation Piping and Wiring Air inlets Rear and left sides About the outdoor unit When Stop is selected during operation of the indoor unit the fan of the outdoor unit continues turning for 10 to 60 seconds to cool the electric parts down In heating operation condensate or water due to defrosting will flow Do not cover the drain port of the outdoor unit because such water may freeze in the chilly area When the outdoor unit is hung on the ceiling instal the bush and drain pipe on the drain port and drain water a MODEL WIDTH mm HEIGHT mm DEPTH mm RAS 25YHA RAS 35YHA 780 280 215 RAC 25YHA RAC 35YHA 750 548 288 NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT INDICATORS FILTER LAMP Green When the device is operated for a total of about 200 hours the FILTER lamp lights indicates that it is time to clean the filter The lamp goes out when the AUTO SWING button is pressed while the operation is stopped OPERATION LAMP Yellow
18. n occasionally This will wet your furniture Therefore do not operate under PROHIBITION such condition for a long time e 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 PROHIBITION etc the preset room temperature cannot be achieved e Indoor unit cleaning must be performed by authorized personnel only Consult your sales agent Using a commercially available detergent or similar can damage the plastic parts or clog the drain pipe causing water to drip with potential electric shock hazard PROHIBITION EV Do not touch the air outlet bottom surface and aluminum fin of the outdoor el unit raus You may get hurt Burns may result DON T TOUCH Do not touch the refrigerant pipe and connecting valve Q S NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT Air filter To prevent dust from coming into the indoor unit Refer page 16 Front panel Indoor unit indicators Light indicator showing the operating condition Refer page 5 Horizontal deflector Vertical deflector Air Outlet Refer page 15 OUTDOOR UNIT Air outlet When heating operation is performed cool air blows and when cooling or dehumidifying operation is performed warm air blows Y Drain port Bottom Earth termina
19. n s internal pressure can be increased by hot air a rupture may result PROHIBITION The product shall be operated under the manufacturer specification and not for any other intended use PROHIBITION amp Do not attempt to operate the unit with wet hands this could cause fatal accident DON T WET the room to avoid oxygen insufficiency When operating the unit with burning equipments regularly ventilate j se STRICTLY OBSERVE LZ PRECAUTIONS 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 PROHIBITION apparatus such as the electric kettle oven etc Please ensure that outdoor mounting frame is always stable firm and without defect If not the outdoor unit may collapse and cause danger PROHIBITION A Do not wash the unit with water or place a water container such as a a vase on the indoor unit PROHIBITION Electrical leakage could be present and cause electric shock Do not place plants or animals directly under the air flow as it is bad for the plants or animals PROHIBITION Do not climb on the outdoor unit or put objects on it PROHIBITION When operating the unit with the door and windows opened the room humidity is always above 80 and with the air deflector facing down or moving automati cally for a long period of time water will condense on the air deflector and drips dow
20. nd deodorizing filters are used e Air cleansing and deodorizing filters canbe used for about 1 year Frame When you want to renew it please ask your sales agent gt gt gt Y E Attaching the negative ion stick to the filter frame Put the negative ion stick to the loer hooks and install it so as Upper hook to push up the upper hooks PP Negative gt ion stick Lower hook NAMES AND FUNCTIONS OF EACH PART p REMOTE CONTROLLER e 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 This unit can be fixed on a wall using the fixture provided Before fixing it make sure the indoor unit can be con trolled from the remote controller e Handle the remote controller with care Dropping it or getting it wet may compromise its signal transmission ca ability After new batteries are inserted into the remote controller the unit will initially require approximately 10 seconds to respond to commands and operate HITACHI Signal emitting window transmission sign Point this window toward the indoor unit when controlling it The transmission sign blinks when a signal is sent Display This indicates the room temperature selected current time timer status func
21. om the air filter using vacuum cleaner If there is too much dust wash the filter with a detergent and rinse it thoroughly After that dry it in the shade Oe 2 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 Do not wash with hot water at more than 40C The filter may shrink When washing it shake off moisture completely and dry it in the shade do not expose it directly to the sun The filter may shrink Don t operate the unit without filter Fault may occur if you continue 16 2 CLEANING OF FRONT PANEL Remove the front panel and wash with clean water Wash it with a soft sponge After using neutral detergent wash thoroughly with clean water When front panel is not removed wipe it with a soft dry cloth Wipe the remote controller thoroughly with a soft dry cloth Wipe the water thoroughly If water remains at indicators or signal receiver of indoor unit it causes trouble Method of removing the front panel Be sure to hold the front panel with both hands to detach and attach it Removing the Front Panel Removing the Front Panel 4 Ai 4a Zi fi When the front panel is fully opened with both When the front panel is f
22. on Select the turn ON time RESERVE button Time setting reservation CANCEL button Cancel time reservation Precautions for Use Do not put the remote controller in the following places In direct sunlight e In the vicinity of a heater Handle the remote controller carefully Do not drop it on the floor and protect it from water e 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 FUNCTION selector button during operation the device may stop for about 3 minutes for protection VARIOUS FUNCTIONS e 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 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 airflow 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 AUTOMATIC OPERATION The device will automatically determine the mode of operation HEAT or COOL depending on the initial room temperatur
23. oor unit NOTE If you set the sleep timer when the off time or on off timer has been set earlier the sleep timer becomes effective instead of the off or on off timer set earlier 14 ADJUSTING THE AIR DEFLECTORS Adjustment of the conditioned air in the upward and downward directions The horizontal air deflector is automatically set to the proper angle suitable for each operation The deflector can be swung up and down continuously and also set to the desired angle using the AUTO SWING button D e Ifthe AUTO SWING button is pressed once the horizon tal air deflector swings up and down If the button is pressed again the deflector stops in its current position Several seconds about 6 seconds may be required before the deflector starts to move Use the horizontal air deflector within the adjusting rangeshown in the right When the operation is stopped the horizontal air deflector moves and stops at the position where the air outlet closes 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 to the left and right Hold the vertical air deflector as shown in the figure and adjust the conditioned air to the left and right Left side Hold the Y third blade from the a Right side Hold the 4 third blade from the z
24. r fire may occur if you install the unit by yourself WARNING 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 CONNECT EARTH LINE Be sure to use the specified piping set for R410A Otherwise this may result in broken copper pipes or faults A circuit breaker should be installed depending on the mounting site of the unit Without a circuit breaker the danger of electric shock exists Do not install the unit near a location where there is flammable gas A The outdoor unit may catch fire if flammable gas leaks around it Piping shall be suitable supported with a maximum spacing of 1m between the supports CAUTION Please ensure smooth flow of water when installing the drain hose If any failure is found in the drain path water drops from the indoor and outdoor units causing wet household effects Make sure that a single phase 230V power source is used O The use of other power sources may cause electrical components to overheat and lead to fire PROHIBITION PRECAUTIONS DURING SHIFTING OR MAINTENANCE Should abnormal situation arise like burning smell please stop operating the unit and remove plug from the socket or turn off the circuit breaker Contact your agent Fault short circuit or fire may occur if you continue to operate the unit COT under abnormal situation
25. ration is recommended for effective preheating ahead of the desired time Cooling and Dehumidifying Capabilities If the heat present in a room exceeds the unit s cooling capacity for example if there are many people in the room or other heating appliances are used the preset room temperature may not be reached VARIOUS FUNCTIONS When fan speed room temperature are set with the remote controller before starting manual operation and the buttons are released the indication of settings will go off in 10 seconds and only the operation mode will be displayed Pressing the button while the unit is in operation will let the protective circuit work so that the unit will not operate for approximately 3 minutes During heating operation the indoor unit s color indicator lamp may flash with no air emitted for a while If you feel cold wind during warming operation with the HI fan speed or want to make the unit operation quieter after the room is heated use of AUTO setting is recommended e With the amp LOW setting the units cooling capability will lower slightly With the LOW setting the units heating capability will vary with the operating conditions TIMER PROGRAMMING SLEEP TIMER OPERATION When the timer has been programmed the unit will not operate even if the set time is reached unless the unit receives a signal from the remote controller Confirm that timer programming is complete beep and the TIME
26. tion and intensity of circulation selected START STOP button HITACHI QO HEAT O DEHUMIDIFY x COOL FAN ae SLEEPING O STOP CANCEL I START RESERVE START STOP TIME TIMER SET VE QUT OFF TIMER Me AUTO SWING Press this button to start operation Press it again to stop operation AUTO SWING button Controls the angle of the horizontal air deflector 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 This button allows selecting the optimal or preferred fan speed for each opera tion mode SLEEP button Use this button to set the sleep timer TEMPERATURE 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 Press this button after the batteries are replaced or when some irregularopera tion is found FUNCTION selector Use this button to select the operating mode Every time you press it the mode will change from AUTO to O HEAT to DEHUMIDIFY to COOL and to FAN cyclically FAN SPEED selector AUTO SWING button TIMER control Use these buttons to set the timer OFF TIMER button Select the turn OFF time ON TIMER butt
27. tomatically in 10 seconds To check the current time setting press the O TIME button twice The setting of the current time is now complete 3 Point the signal window of the remote controller toward the indoor unit and sign lights A beep occurs and the TIMER lamp lights on the indoor unit Example The device will turn off at 11 00p m O The setting of turn off time is now complete press the RESERVE button The I ON mark starts lighting instead of flashing and the RESERVED sign lights A beep occurs and the TIMER lamp lights on the indoor unit Example 3 Point the signal window of the remote controller toward the indoor unit and y The device will turn on at 7 00 a m press the RESERVE button The I ON mark starts lighting instead of flashing and the RESERVED sign lights A beep occurs and the TIMER lamp lights on the indoor unit n Example plete The setting of the turn on time is now complete 5 Point the signal window of the remote controller toward the indoor unit and The device will turn off at 10 30p m and it will be turned on at 7 00 a m The settings of the turn on off time are now com The timer may be used in three ways off timer on timer and ON OFF OFF ON timer Set the current time at first because it serves as a reference e As the time settings are stored in memory in the remote controller you only have to press the I RESERVE
28. ully opened with both hands push the right arm to the inside to release hands push the right arm to the inside to release it and while closing the front panel slightly put it and while closing the front panel slightly put it out forward it out forward 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 Run the unit by setting the operation mode to FAN and the fan speed to HI for about half a day on a fine day and dry the whole of the unit e Switch off the power plug or turn off the circuit breaker 17 INFORMATION CAPABILITIES Heating Capability This room air conditioner utilizes a heat pump system that absorbs exterior heat and brings it into a room to be heated As the ambient temperature gets lower heating capability will also lower In such a situation the inverter work to increase compressor rpm to keep Do not use a stove or any other high temperature devices the unit s heating capability from decreasing If the unit s heating in proximity to the performance is still unsatisfactory other heating appliances should indoor unit PROHIBITION be used to augment this unit s performance The air conditioner is designed to heat an entire room so that it may take some time before you feel warm Timer ope
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