Hitachi RAC-S18H2AA User Manual Download Page 23

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MEMO

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Minimum Maximum Minimum Maximum

Indoor

Dry bulb °C

Wet bulb °C

Outdoor

Dry bulb °C

Wet bulb °C

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

Heating

(EN1) RAS-S18H2AA.indd 4

5/19/10 5:10 PM

Summary of Contents for RAC-S18H2AA

Page 1: ... 1 INDOOR UNIT OUTDOOR UNIT SPLIT TYPE AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT MODEL RAS S18H2AA RAC S18H2AA T ORAR S ITCH RAS S18H2AA RAC S18H2AA ...

Page 2: ...of electric shock exists Do not install near location where there is ammable gas The outdoor unit may catch re if ammable gas leaks around it Please ensure smooth ow of water when installing the drain hose CAUTION PRECAUTIONS DURING OPERATION Avoid an extended period of direct air ow for your health W A R N I N G Do not insert a nger a rod or other objects into the air outlet or inlet As the fan i...

Page 3: ...r 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 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...

Page 4: ...ODEL RAS S18H2AA RAC S18H2AA HEIGHT mm 280 650 DEPTH mm 220 298 MODEL NAME AND DIMENSIONS OUTDOOR UNIT DRAIN PIPE Condensed water drain to outside CONNECTING CORD AIR INLET BACK LEFT SIDE AIR OUTLET Air cleansing lters are washable and can be use in 1 year time Type number for this air cleansing lter is SPX CFH11 Please use this number for ordering when you want to renew it Air cleansing lter shou...

Page 5: ...ut 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 TIMER LAMP This lamp lights when the timer is working 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 te...

Page 6: ...nd 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 determines the fan speed Every time you press this button the intensity of circulation will...

Page 7: ...Timer mode is set As the settings are stored in memory in the remote controller you only have to press the START STOP button next time Press the FUNCTION selector so that the display indicates the AUTO mode of operation When AUTO has been selected the device will automatically determine the mode of operation HEAT COOL or DEHUMIDIFY depending on the current room temperature However the mode of oper...

Page 8: ...a 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 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 ST...

Page 9: ...top the indoor unit will stop emitting air as soon as the room temperature becomes lower than the setting temperature 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 TEMPERATURE button the display indicates the setting The range of 20 26 C is recommended as the room temperature f...

Page 10: ... speed slower SILENT Fan speed ultra 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 se...

Page 11: ...n 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 the FUNCT...

Page 12: ... the indoor unit and press the CANCEL button The RESERVED sign goes out with a beep and the TIMER lamp turns off on the indoor unit 1 Press the OFF TIMER button The OFF mark blinks on the display NOTE You can set only one of the OFF timer ON timer and ON OFF timer The device will turn on at the designated times TIME OFF TIMER ON TIMER RESERVE CANCEL AM 1 Press the ON TIMER button the ON mark blink...

Page 13: ...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 ashing 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 it will be turned ...

Page 14: ...on 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 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 contr...

Page 15: ... of batteries together 2 Take out the batteries when you do not use the remote controller for 2 or 3 months CIRCUIT BREAKER When you do not use the room air conditioner set the circuit breaker to OFF TEMPORARY SWITCH If the remote controller does not work due to battery failure press this switch to start and stop operation This temporary operation will be at the setting made most recently The unit...

Page 16: ...her 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 lter will reduce the air volume and the cooling ef ciency To prevent from wasting electric energy please clean the lter every 2 weeks Please pay attention to the room temperature and air ow direction when operating the unit for baby children and old folk...

Page 17: ...e achieved When the indoor unit is not 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 Interference From Electrical ...

Page 18: ...ters push the front panel at three arrow portion as shown in gure and close it Cleaning and maintenance must be carried out only by quali ed service personal Before cleaning stop operation and switch off the power supply CAUTION CAUTION Do not bend the air cleansing lter as it may cause damage to the structure NOTE In case of removing the air cleansing lters please follow the above procedures The ...

Page 19: ...ir lter and air cleans ing filter using vacuum cleaner If there is too much dust air lter only rinse under running tap water and gently brush it with soft bristle brush Allow lters to dry in shade 3 Re insert the air cleansing lter to the lter frame Set the lter with FRONT mark facing front and slot them into the original state After attaching the lters push the front panel at three arrow portions...

Page 20: ...e to hold the 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 rig...

Page 21: ...nit tilted or unstable Is the plug of power line rmly plugged into the socket Please ensure no loose contact between them Cleaning and maintenance must be carried out only by quali ed service personal Before cleaning stop operation and switch off the power supply CAUTION 3 MAINTENANCE AT BEGINNING OF LONG OFF PERIOD Running the unit setting the operation mode to FAN and the fan speed to HI for abo...

Page 22: ...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 lter and the evaporator 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 nu...

Page 23: ...2 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 Heating ...

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