Table of Contents
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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
OUTDOOR UNIT
RAC-18KH/RAC-24GH4
Instruction manual
To obtain the best performance, please read this instruction manual completely.
RAS-18KH-24GH4(T1) (1).indd 1
RAS-18KH-24GH4(T1) (1).indd 1
MODEL
RAS-18KH
/RAC-18KH
(T1)
RAS-24GH4
/RAC-24GH4
(T1)
– 1 –
INDOOR UNIT
RAS-18KH
(T1)
RAS-24GH4
(T1)
Page 1~24
5/12/10 11:03 AM
5/12/10 11:03 AM
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Table of Contents
Related Manuals for Hitachi RAS-18KH(T1)
Summary of Contents for Hitachi RAS-18KH(T1)
- Page 1 SPLIT TYPE AIR CONDITIONER INDOOR UNIT/OUTDOOR UNIT MODEL RAS-18KH /RAC-18KH (T1) RAS-24GH4 /RAC-24GH4 (T1) INDOOR UNIT OUTDOOR UNIT RAS-18KH (T1) RAC-18KH/RAC-24GH4 RAS-24GH4 (T1) Instruction manual Page 1~24 To obtain the best performance, please read this instruction manual completely. – 1 – RAS-18KH-24GH4(T1) (1).indd 1 RAS-18KH-24GH4(T1) (1).indd 1 5/12/10 11:03 AM...
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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 specifi cation 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 ●...
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Page 4: Names And Functions Of Each Part
NAMES AND FUNCTIONS OF EACH PART RAS-18KH /RAS-24GH4 (T1) (T1) INDOOR UNIT AIR FILTER To prevent dust from coming into the indoor unit. (Refer page 21) FRONT PANEL (AIR INLET) INDOOR UNIT INDICATORS Light indicator showing the operating condition. (Refer page 5) HORIZONTAL DEFLECTOR VERTICAL ●... -
Page 5: Indoor Unit Indicators
This lamp lights during operation. The OPERATION LAMP fl ashes in the following cases during heating. (1) During preheating HITACHI 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 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 fi xed on a wall using the fi xture provided. Before fi xing it, make sure the indoor unit can be controlled from the remote controller. -
Page 7: Automatic Operation
AUTOMATIC OPERATION The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the initial room temperature. The selected mode of operation will not change when the room temperature varies. Press the FUNCTION selector so that the display indicates the (AUTO) mode of operation. -
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 –10°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). The FAN SPEED is set at LOW automatically. The FAN SPEED button does not work. -
Page 10: Cooling Operation
COOLING OPERATION Use the device for cooling when the outdoor temperature is 22-42°C. If indoor humidity is very high (over 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.* START Press the... -
Page 12: How To Set The Sleep Timer
HOW TO SET THE SLEEP TIMER Set the current time at fi rst 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... - Page 13 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.
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Page 14: How To Set The Timer
HOW TO SET THE TIMER 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 Press the (OFF-TIMER) button. The (OFF) mark blinks RESERVE on the display. - Page 15 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 fl ashing. ● 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 16: Adjusting The Air Deflector
ADJUSTING THE AIR DEFLECTOR Adjustment of the conditioned air in the upward and downward directions. The horizontal air defl ector is automatically set to the proper angle suitable for each operation. The defl ector can be swung up and down continuously 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 fi gure and take out the old batteries. Install the new batteries. The direction of the batteries should match the marks in the case. CAUTION 1. -
Page 18: Suitable Room Temperature
THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds Warning It is possible Freezing temperature to 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: Attaching The Air Cleansing And Deodorizing Filters
ATTACHING THE AIR CLEANSING AND DEODORIZING FILTERS CAUTION Cleaning and maintenance must be carried out only by qualifi ed 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 ●... -
Page 21: Maintenance
MAINTENANCE CAUTION Cleaning and maintenance must be carried out only by qualifi ed service personal. Before cleaning, stop operation and switch off the power supply. AIR FILTER Clean the air fi lter, as it removes dust inside the room. In case the air fi lter is full of dust, the air fl ow will decrease and the cooling capacity will be reduced. - Page 22 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 23: Regular Inspection
CAUTION Cleaning and maintenance must be carried out only by qualifi ed service personal. Before cleaning, stop operation and switch off the power supply. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD Run the unit by setting the operation mode to ●... - Page 24 AFTER SALE SERVICE AND WARRANTY WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS CONDITION CHECK THE FOLLOWING POINTS ● Is the fuse all right? ● Is the voltage extremely high or low? When it does not operate ● Is the circuit breaker “ON”? Was the air fi...