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Table of Contents
Related Manuals for Hitachi RAI-18C
Summary of Contents for Hitachi RAI-18C
- Page 1 CEILING CASSETTE TYPE AIR CONDITIONER INDOOR UNIT/OUTDOOR UNIT MODEL RAI-18C RAC-18C OUTDOOR UNIT INDOOR UNIT RAI-18C RAC-18C Instruction manual Page 1~24 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
(Refer page 6) OUTDOOR UNIT 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) RAI-18C RAC-18C – 4 –... -
Page 5: Indoor Unit Indicators
OPERATION INDICATOR TEMPORARY SWITCH TEMPORARY SWITCH Use this switch to start and stop when the remote controller does not work. Temporary Switch [Use non-conductor stick (example toothpick)] By pressing the temporary switch, the operation is done in previously set Press operation mode. -
Page 6: Names And Functions Of Remote Control Unit
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. -
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: 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 automatically. The FAN SPEED button does not work. -
Page 9: Cooling Operation
COOLING OPERATION Use the device for cooling when the outdoor temperature is 22-43°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 10: 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 11: Circulation Operation
CIRCULATION OPERATION Press the FUNCTION selector so that the display indicates (CIRCULATE). ˚ Press the FAN SPEED button and select the desired FAN SPEED (the display indicates your choice). Press the temperature control button to set to the desired RESET temperature. -
Page 12: How To Set The Timer
HOW TO SET THE TIMER Time, Day, Month Set the current month and TIME, DAY, day with the TIMER control After you change the MONTH button. batteries; (current time, day, month) OFF TIMER RESET ON TIMER OFF-Timer Press the (OFF-TIMER) button. - 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: Explanation Of The Sleep Timer
Explanation of the sleep timer The device will control the FAN SPEED and room temperature automatically so as to be quiet and good for people’s health. You can set the sleep timer to turn off after 1, 2, 3 or 7 hours. The FAN SPEED and room temperature will be controlled as shown below. -
Page 16: Adjusting The Air Deflector
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 RESET angle suitable for each operation. The deflector can be swung up and down and also set to the desired angle using the “... -
Page 17: How To Exchange The Batteries In The 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 18: 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 19 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 20: 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 21: Regular Inspection
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 22: After Sales Service And Warranty
AFTER SALES SERVICE AND WARRANTY WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS. CONDITION CHECK THE FOLLOWING POINTS Is the fuse blown out or the circuit breaker tripped? Is the voltage normal? When it does not operate Is the circuit breaker “ON”? Is the air filter blocked with dust? Does sunlight fall directly on the outdoor unit? Is the air flow of the outdoor unit obstructed? - Page 23 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).
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