Table of Contents
Related Manuals for Hitachi RAD-18NHA2
Summary of Contents for Hitachi RAD-18NHA2
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Page 1: Indoor Unit
SPLIT TYPE AIR CONDITIONER INDOOR UNIT MODEL RAD-18NHA2 RAD-25NHA2 RAD-35NHA2 RAD-50NHA2 INDOOR UNIT RAD-18NHA2 RAD-25NHA2 RAD-35NHA2 RAD-50NHA2 – 1 – RAD-18-25-35-50NHA2 (EN1) 1 RAD-18-25-35-50NHA2 (EN1) 1 5/14/14 10:31 AM 5/14/14 10:31 AM... -
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: Multi-Air Conditioner
MULTI-AIR CONDITIONER With this multi-air conditioner, several indoor units can be connected to one outdoor unit to be driven. You can operate the required number of indoor units. Combination of Operations: When operation mode is selected: ● You cannot operate the indoor units in the following combinations. -
Page 5: Names And Functions Of Each Part
NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT MODEL NAME AND DIMENSIONS MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm) RAD-18NHA2/RAD-25NHA2/RAD-35NHA2/RAD-50NHA2 – 5 – RAD-18-25-35-50NHA2 (EN1) 5 RAD-18-25-35-50NHA2 (EN1) 5 5/14/14 10:31 AM 5/14/14 10:31 AM... -
Page 6: Names And Functions Of Remote Controller
NAMES AND FUNCTIONS OF REMOTE CONTROLLER ■ This controls the operation function and timer setting of the room air conditioner. OPERATION LAMP Transmission Sign The transmission sign blinks START/STOP Button when a signal has been send. Press this button to start operation. Press it again to stop operation. -
Page 7: 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. (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 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 maintain reliability of the device, please use this device when outdoor temperature is above –15°C Press the MODE SELECTOR button 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 MODE SELECTOR button so that the display indicates (DEHUMIDIFY). Press (FAN SPEED) button to select SILENT or LOW fan speed. -
Page 10: Cooling Operation
COOLING OPERATION Use the device for cooling when the outdoor temperature is –10 ~ 43°C. If indoor humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit. Press the MODE SELECTOR button so that the display indicates (COOL). -
Page 11: Timer Reservation
TIMER RESERVATION ■ ON Timer and OFF Timer are available. ■ Operation stop at setting timer OFF Timer Reservation OFF TIMER setting ● Select the OFF TIMER by pressing the (OFF) Button. Setting timer will change according to the below ●... - Page 12 HOW TO SET THE SLEEP TIMER Mode Indication 1 hour 2 hours 3 hours 7 hours Sleep timer Sleep timer off Sleep Timer: The device will continue working for the designated number of hours and then turn off. Press the SLEEP button. The timer information will be displayed on the remote controller.
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Page 13: Installation Of Wired Remote Controller
INSTALLATION OF WIRED REMOTE CONTROLLER Connection to the electrical box; Remove the cover of electric box ● ● Connect the connector of wired remote controller to CN1102 of electrical board ● Assemble back the cover of electrical box Wiring installation for wired remote controller (2 methods); ●... -
Page 14: Circuit Breaker
Note The recommended temperature range for safety testing should be as below: ● Cooling Heating Minimum Maximum Minimum Maximum Dry bulb °C Indoor Wet bulb °C Dry bulb °C Outdoor Wet bulb °C CIRCUIT BREAKER When you do not use the room air conditioner, set the circuit breaker to “OFF”. HOW TO USE THE AIR CONDITIONER EFFECTIVELY 1. - Page 15 THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds Warning It is possible to reduce heat Freezing temperature entering the is bad for health and a room through waste of electric power. windows. Ventilation Effective Usage Of Timer At night, please use the “OFF or ON timer Caution operation mode”, together with your wake up...
- Page 16 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 17: Maintenance
MAINTENANCE WARNING ● Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker. CAUTION ● Do not expose the unit to water as it may cause an electric shock. ● For cleaning inside the air conditioner, consult your sales agent. ●... -
Page 18: Regular Inspection
REGULAR INSPECTION PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONAL EITHER EVERY HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT OR SERVICE SHOP. Is the earth line disconnected or broken? Is the mounting frame seriously affected by rust and is the outdoor unit tilted or unstable? Is the plug of power line fi... - Page 19 Please note: On switching on the equipment, particularly when the room light is dimmed, a slight brightness fl uctuation may occur. This is of no consequence. The conditions of the local Power Supply Companies are to be observed. MEMO ..........................................................................
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