Table of Contents
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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
OUTDOOR UNIT
RAC-25YHA2
RAC-35YHA2
Instruction manual
To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
MODEL
RAS-25YHA2/RAC-25YHA2
RAS-35YHA2/RAC-35YHA2
– 1 –
INDOOR UNIT
RAS-25YHA2
RAS-35YHA2
Page 1~20
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Table of Contents
Related Manuals for Hitachi RAS-25YHA2
Summary of Contents for Hitachi RAS-25YHA2
- Page 1 SPLIT TYPE AIR CONDITIONER INDOOR UNIT/OUTDOOR UNIT MODEL RAS-25YHA2/RAC-25YHA2 RAS-35YHA2/RAC-35YHA2 INDOOR UNIT OUTDOOR UNIT RAC-25YHA2 RAS-25YHA2 RAS-35YHA2 RAC-35YHA2 Instruction manual Page 1~20 To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
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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 • Do not use any conductor as fuse wire, this could cause fatal accident. PROHIBITION • During thunder storm, disconnect the plug top or turn off the circuit breaker. WARNING “OFF” • Spray cans and other combustibles should not be located within a meter of the air outlets of both indoor and outdoor units.
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Page 4: Names And Functions Of Each Part
• When the outdoor unit is hung on the (Lower section of the side) ceiling, install the bush and drain pipe on the drain port and drain water. MODEL NAME AND DIMENSIONS MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm) RAS-25YHA2, RAS-35YHA2 RAC-25YHA2 RAC-35YH 2 – 4 –... -
Page 5: Indoor Unit Indications
NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT INDICATIONS 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 “... -
Page 6: Remote Controller
NAMES AND FUNCTIONS OF EACH PART 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, in some cases, the control signal may not be received. This unit can be fixed on a wall using the fixture provided. -
Page 7: Automatic Operation
VARIOUS FUNCTIONS 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. -
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). Press the (FAN SPEED) button to select LOW and SILENT. START Press the (START/STOP) button. -
Page 10: Cooling Operation
COOLING OPERATION Use the device for cooling when the outdoor temperature is -10 to 42°C. If humidity is very high (over 80%) indoors, 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 Set the current month and day Time with the TIMER control button. TIME, DAY, MONTH (current After you change the time, day, month) batteries; OFF TIMER ON TIMER Press the (OFF-TIMER) OFF-Timer button. The (OFF) mark blinks RESERVE on the display. - Page 13 Set the Set the current time with Press the (TIME) (TIME) button. the TIMER control button. button again. The time • The time indication will disappear automatically in 10 indication star ts lighting seconds. instead of flashing. • 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. 1 hour 2 hours 3 hours 7 hours Sleep Timer... -
Page 15: Adjusting The Air Deflectors
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 “... -
Page 16: 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. 1. AIR FILTER When the filter indicator lamp comes on, be sure to clean the filter. By doing so, the power rates are saved. - Page 17 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.
- Page 18 INFORMATION CAPABILITIES Heating Capability CAUTION • 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 Do not use a stove temperature gets lower, heating capability will also lower. In such a other situation, the inverter work to increase compressor rpm to keep the h i g h t e m p e ra t u r e...
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Page 19: Regular Inspection
REGULAR INSPECTION PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP. Check to see if the unit ’s earth line has been con- nected correctly. If the earth line is disconnected or faulty, unit failure or WARNING electric shock hazard may result. - Page 20 Noise of the ventilation fan sucking in air present in the drain hose and blowing out dehumidifying water that had accumulated in the condensed water collector. For Perking noise details, consult your sales agent. Operation noise changes due to power variations according to room temperature Changing operation noise changes.