Hitachi RAD-18NHA2, Instructions Manual

Page 1: ...R CONDITIONER INDOOR UNIT INDOOR UNIT MODEL RAD 18NHA2 RAD 25NHA2 RAD 35NHA2 RAD 50NHA2 RAD 18NHA2 RAD 25NHA2 RAD 35NHA2 RAD 50NHA2 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: ... unit in a machine shop or kitchen where vapor from oil or its mist flows to the indoor unit The oil will deposit on the heat exchanger thereby reducing the indoor unit performance and may deform and in the worst case breake the plastic parts of the indoor unit CAUTION PRECAUTIONS DURING SHIFTING OR MAINTENANCE PRECAUTIONS DURING OPERATION Avoid an extended period of direct air flow for your healt...

Page 3: ...g or heating capability of the unit for example more people entering the room using heating equipments and etc the preset room temperature cannot be achieved This appliance is not intended for use by young children or infirm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safely Young children should be supervised to ensure that...

Page 4: ...door Units Decrease the number of indoor units to be operated especially when it is very hot or cold or when you want to reach the present temperature quickly Stopped Indoor Units When an indoor unit is operated in the cooling heating or dehumidifying mode in the room the sound of refrigerant flow may be heard from a stopped indoor unit or a stopped indoor unit may become warm This is because the ...

Page 5: ... FUNCTIONS OF EACH PART WIDTH mm 750 MODEL RAD 18NHA2 RAD 25NHA2 RAD 35NHA2 RAD 50NHA2 HEIGHT mm 235 DEPTH mm 400 MODEL NAME AND DIMENSIONS 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: ...n Press it again to stop operation Transmission Sign The transmission sign blinks when a signal has been send RESET SWITCH ROOM TEMPERATURE Setting Button Room temperature setting Value will change quicker when keep pressing CANCEL Button Cancel timer reservation FAN SPEED Button This determines the fan speed Every time you press this button the intensity of circulation will change from AUTO to HI...

Page 7: ...HEAT DEHUMIDIFY or COOL 1 START STOP 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 When you switch on the circuit breaker the opera...

Page 8: ...e stored in the memory of the remote controller you only have to press the START STOP button next time During AUTO fan the fan speed automatically changes as below When the difference between room temperature and setting temperature is large fan starts to run at HI speed After room temperature reaches the preset temperature fan speed will be changed to lower speed to obtain optimum room temperatur...

Page 9: ... button next time START STOP Press the MODE SELECTOR button so that the display indicates DEHUMIDIFY Press FAN SPEED button to select SILENT or LOW fan speed Dehumidifying Function When the room temperature is higher than the temperature setting The device will dehumidify the room reducing the room temperature to the preset level When the room temperature is lower than the temperature setting Dehu...

Page 10: ... The cooling function does not start if the temperature setting is higher than the current room temperature even though the OPERATION lamp lights The cooling function will start as soon as you set the temperature below the current room temperature START STOP AUTO HIGH MED SILENT LOW As the settings are stored in the memory of the remote controller you only have to press the START STOP button next ...

Page 11: ...s Setting timer will change according to the below sequence The value change quicker if you keep pressing the button ON Timer Reservation 1 Press the CANCEL button As the timer settings are stored in remote controller memory you only have to press the SET button in order to use the same setting next time CANCELLATION of Timer Reservation 2 Press the SET button ON TIMER is reserved The ON Mark star...

Page 12: ... hours 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 If you set the sleep timer after the off or on timer has been set the sleep timer becomes effective instead of the off or on timer set earlier You can not set other timer during sleep timer operation After sleep timer time is up a...

Page 13: ...ure by cutter Fix the bottom casing to the wall by provided screw Connect the wires to the lead wires connector Mount the wires through the provided slot on top casing Assemble the top casing to the fixed bottom casing Refer to the illustration below for detail installation Wall mounting screws 2 pieces provided a Connection to the electrical box Remove the cover of electric box Connect the connec...

Page 14: ... heating appliances 3 Using the timer is recommended before going to sleep or going out 4 The following must never be used for cleaning the indoor and outdoor units Benzine thinner and scrub can damage plastic surfaces or coating Hot water above 40 C can shrink the filter and deform plastic parts 5 Do not block the air intake and air outlet Do not block the air outlets and intakes of the indoor an...

Page 15: ...ill enable you to enjoy a comfortable room temperature Please use the timer effectively Dusty air filter will reduce the air volume and the cooling efficiency To prevent from wasting electric energy please clean the filter every 2 weeks Please pay attention to the room temperature and air flow direction when operating the unit for baby children and old folks who have difficulty in movement Caution...

Page 16: ...eriod of time please switch off the power from the mains If the power from mains remains ON the indoor unit still consumes about 10W depends on outdoor unit connected in the operation control circuit even if it is in OFF mode Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from the socket Interference From Electrical Products Caution To avoid n...

Page 17: ...N 1 AIR FILTER Clean the air filter as it removes dust inside the room Be sure to clean the filter once every two weeks so as not to consume electricity unnecessarily 2 Remove dust from the filter using a vacuum cleaner If there is too much dust use neutral detergent After using neutral detergent wash with clean water and dry in the shade 3 Install the filters Gently insert back the filter into th...

Page 18: ... POINTS Notes In quiet or stop operation the following phenomena may occassionally occur but they are not abnormal for the operation 1 Slight flowing noise of refrigerant in the refrigerating cycle 2 Slight rubbing noise from the fan casing which is cooled and then gradually warmed as operation stops The odor will possibly be emitted from the room air conditioner because the various odor emitted b...

Page 19: ...arly 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 RAD 18 25 35 50NHA2 EN3 19 RAD 18 25 35 50NHA2 EN3 19 5 14 14 10 35 AM 5 14 14 10 35 AM ...

Page 20: ... 20 MEMO RAD 18 25 35 50NHA2 EN3 20 RAD 18 25 35 50NHA2 EN3 20 5 14 14 10 35 AM 5 14 14 10 35 AM ...

Page 21: ... 21 MEMO RAD 18 25 35 50NHA2 EN3 21 RAD 18 25 35 50NHA2 EN3 21 5 14 14 10 35 AM 5 14 14 10 35 AM ...

Page 22: ... 22 MEMO RAD 18 25 35 50NHA2 EN3 22 RAD 18 25 35 50NHA2 EN3 22 5 14 14 10 35 AM 5 14 14 10 35 AM ...