Related Manuals for Hitachi RAI-50NH5A
Summary of Contents for Hitachi RAI-50NH5A
- Page 1 CEILING CASSETTE TYPE AIR CONDITIONER INDOOR UNIT/OUTDOOR UNIT MODEL RAI-25NH5A RAI-35NH5A RAI-50NH5A INDOOR UNIT RAI-25NH5A RAI-35NH5A RAI-50NH5A – 1 – (EN1) RAI-25/35/50NH5A 5/3/08, 10:08 AM...
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Page 2: Names And Functions Of Each Part
NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT AIR FILTER To prevent dust from coming into the indoor unit. (Refer Instruction Manual) INDOOR UNIT INDICATORS Light indicator showing the operating condition. (Refer page 3) SUCTION GRILL (AIR INLET) HORIZONTAL DEFLECTOR (AIR OUTLET) (Refer Instruction Manual) REMOTE CONTROL Send out operation signal to the indoor unit. - Page 3 INDOOR UNIT INDICATORS 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 outdoor unit, for 5–10 minutes each time.
- Page 4 Note Avoid to use the room air conditioner for cooling operation when the outside temperature is below 21°C (70°F). The recommended maximum and minimum operating temperatures of the hot and cold sides should be as below: Cooling Heating Minimum Maximum Minimum Maximum Dry bulb °C...
- Page 5 SPLIT TYPE Instruction manual Instruction manual Page 1~24 To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely. – 1 – (EN) Inst Manual 1642 5/3/08, 10:22 AM...
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Page 6: 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 7 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 ●...
- Page 8 NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT REMOTE CONTROLLER ● Operate by pointing towards the signal receptor on the indoor unit. The range of control is about 7 meters. Signal receivable angle range is approximately 70°. However, if there is an electronic light sensor device (inverter) in the room, signal may not be received or receivable distance may become shorter.
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Page 9: Various Functions
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. -
Page 10: 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 11: 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 12: 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 13: 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 14: How To Set The Timer
HOW TO SET THE TIMER Time Set the (TIME) button. TIME After you change the batteries; OFF TIMER ON TIMER OFF-Timer Press the (OFF-TIMER) button. The (OFF) mark blinks RESERVE on the display. Start STOP CANCEL You can set the device to turn off at the preset time. - Page 15 Press the Set the current time with the Press the (TIME) button again. 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.
- Page 16 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 17 ADJUSTING THE AIR DEFLECTOR Adjustment of the conditioned air in the upward and downward directions. According to “Dehumidifying” or “Cooling” operation, the horizontal air deflector is automatically set to the proper angle suitable for each operation. The deflector can be swung up and down and also set to the desired angle using the “...
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Page 18: 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 19 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 20 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 21: Maintenance
MAINTENANCE CAUTION Cleaning and maintenance must be carried out by qualified service personnel. Before the cleaning, stop operation and disconnect the power supply. Clean the filter at least once every one month. This helps save electricity cost. CLEANING OF AIR FILTER REMOVAL AND ATTACHMENT OF AIR FILTER PROCEDURE PUSH... -
Page 22: Cleaning Of Front Panel
2. CLEANING OF FRONT PANEL ● Wipe it with a soft dry cloth. ● When it is excessively dirty, wipe with soft cloth soaked in lukewarm water or neutral detergent. Then wipe thoroughly with a soft dry cloth. CAUTION ● Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit. - 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.) ●...
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- Page 28 < > H534: A – 24 – (EN2) Inst Manual 1642 5/3/08, 10:22 AM...
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