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INDOOR UNIT/OUTDOOR UNIT
Instruction manual
To obtain the best performance and ensure years of trouble free use, please read this instruction
manual completely.
RAS/RAC-70/80YHA2 EN1
SPLIT TYPE
RAS-70YHA2/RAC-70YHA2
RAS-80YHA2/RAC-80YHA2
OUTDOOR UNIT
RAC-70YHA2
RAC-80YHA2
1
MODEL
INDOOR UNIT
RAS-70YHA2
RAS-80YHA2
– 1 –
Page 1~26
1/22/09, 16:02
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Table of Contents
Related Manuals for Hitachi RAS-70YHA2
Summary of Contents for Hitachi RAS-70YHA2
- Page 1 SPLIT TYPE INDOOR UNIT/OUTDOOR UNIT MODEL RAS-70YHA2/RAC-70YHA2 RAS-80YHA2/RAC-80YHA2 INDOOR UNIT OUTDOOR UNIT RAS-70YHA2 RAS-80YHA2 RAC-70YHA2 RAC-80YHA2 Instruction manual Page 1~26 To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely. – 1 –...
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Page 2: Safety Precaution
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 “ Warning” and “ 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. - Page 3 PRECAUTIONS DURING OPERATION The product shall be operated under the manufacturer specification and not for any other intended use. Do not attempt to operate the unit with wet hands, this could cause fatal accident. When operating the unit with burning equipments, regularly ventilate the room to avoid oxygen insufficiency.
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Page 4: Names And Functions Of Each Part
DRAIN PIPE Condensed water drain to outside. CONNECTING CORD AIR INLET (BACK, LEFT SIDE) AIR OUTLET MODEL NAME AND DIMENSIONS MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm) RAS-70YHA2 / RAS-80YHA2 1150 RAC-70YHA2 / RAC-80YHA2 – 4 – RAS/RAC-70/80YHA2 EN1 1/22/09, 16:02... -
Page 5: Indoor Unit Indicators
INDOOR UNIT INDICATORS TIMER LAMP This lamp lights when the timer is working. OPERATION 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... -
Page 6: Names And Functions Of Remote Control Unit
NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT REMOTE CONTROLLER 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 controlled from the remote controller. -
Page 7: Automatic Operation
VARIOUS FUNCTIONS I Auto Restart Control 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. -
Page 8: Heating Operation
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 -15°C of the outdoor temperature. Press the FUNCTION selector so that the display indicates (HEAT). -
Page 9: Dehumidifying Operation
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. Press the FUNCTION selector so that the display indicates (DEHUMIDIFY). The FAN SPEED is set at LOW or SILENT. Set the desired room temperature with the TEMPERATURE button (the display indicates the setting). -
Page 10: Cooling Operation
COOLING OPERATION Use the device for cooling when the outdoor temperature is 21~ 43°C. If in doors humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit. Press the FUNCTION selector so that the display indicates (COOL). -
Page 11: Fan 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 FUNCTION selector so that the display indicates (FAN). Press the (FAN SPEED) button. -
Page 12: How To Set The Timer
HOW TO SET THE TIMER Time Set the (TIME) button. After you change the batteries; TIME OFF TIMER ON TIMER OFF-Timer RESERVE Press the (OFF-TIMER) button. The (OFF) mark blinks on the display. CANCEL Start STOP You can set the device to turn off at the preset time. - Page 13 Set the current time with the Press the (TIME) button again. Press the TIMER control button. The time indication starts lighting (TIME) button. instead of flashing. The time indication will disappear automatically in 10 second. To check the current time setting, press the (TIME) button twice.
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Page 14: How To Set The Sleep Timer
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. Mode Indication 1 hour 2 hours 3 hours 7 hours... -
Page 15: Adjusting The Air Deflector
ADJUSTING THE AIR DEFLECTOR 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 “... -
Page 16: To Exchange Batteries In Remote Controller
HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER Remove the cover as shown in the figure and take out the Push and pull to the old batteries. direction of arrow Install the new batteries. The direction of the batteries should match the marks in the case. -
Page 17: Suitable Room Temperature
THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds Warning It is possible to Freezing temperature reduce heat is bad for health and a entering the waste of electric power. room through windows. Ventilation Effective Usage Of Timer At night, please use the “OFF or ON timer Caution operation mode”, together with your wake up... - Page 18 FOR USER’S INFORMATION The Air Conditioner And The Heat Source In The Room 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.
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Page 19: Attaching The Air Cleansing Filters
ATTACHING THE AIR CLEANSING FILTERS CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. Open the front panel. Pull up the front panel by holding it at both sides with both hands. -
Page 20: Maintenance
MAINTENANCE CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. AIR FILTER Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will be reduced. - Page 21 Washable 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.
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Page 22: Regular Inspection
CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD Running the unit 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. - Page 23 AFTER SALE SERVICE AND WARRANTY WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS. CONDITION CHECK THE FOLLOWING POINTS If the remote controller is Do the batteries need replacement? not transmitting a signal. Is the polarity of the inserted batteries correct? Remote controller display is dim or blank.) Is the fuse all right?
- Page 24 Please note: On switching on the equipment, particularly 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. Note Avoid to use the room air conditioner for cooling operation when the outside temperature is below 21°C (70°F).