Hitachi RAC-60YHA3, RAS-50YHA3, RAC-50YHA3, RAS-60YHA3 Instruction Manual
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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-50YHA3/RAC-50YHA3
RAS-60YHA3/RAC-60YHA3
INDOOR UNIT
RAC-50YHA3
Instruction manual
Page 1~24
To obtain the best performance, please read this instruction manual completely.
OUTDOOR UNIT
RAC-60YHA3
RAS-50YHA3
RAS-60YHA3
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SAFETY PRECAUTION
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Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
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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. Please observe all instructions strictly to ensure safety.
●
The sign indicate the following meanings.
●
Please keep this manual after reading.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
●
Should abnormal situation arises (like burning smell), please stop operating the unit and turn off the
circuit breaker. Contact your agent. Fault, short circuit or re may occur if you continue to operate
the unit under abnormal situation.
●
Please contact your agent for maintenance. Improper self maintenance may cause electric
shock and re.
●
Please contact your agent if you need to remove and reinstall the unit. Electric shock or re
may occur if you remove and reinstall the unit yourself improperly.
●
If the supply cord is damaged, it must be replaced by the special cord obtainable at authorized
service/parts centers.
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the gure indicates prohibition.
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PRECAUTIONS DURING OPERATION
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Avoid an extended period of direct air ow for your health.
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Do not insert a nger, a rod or other objects into the air outlet or inlet. As the fan is rotating at
a high speed, it will cause injury. Before cleaning, be sure to stop the operation and turn the
breaker OFF.
●
During thunder storm, disconnect and turn off the circuit breaker.
●
Do not use any conductor as fuse wire, this could cause fatal accident.
●
Spray cans and other combustibles should not be located within a meter of the air outlets
of both indoor and outdoor units.
As a spray can’s internal pressure can be increased by hot air, a rupture may result.
WARNING
PRECAUTIONS DURING INSTALLATION
●
Do not reconstruct the unit.
Water leakage, fault, short circuit or re may occur if you reconstruct the unit by yourself.
●
Please ask your sales agent or quali ed technician for the installation of your unit. Water
leakage, short circuit or re may occur if you install the unit by yourself.
●
Please use earth line.
Do not place the earth line near water or gas pipes, lightning-conductor, or the earth
line of telephone. Improper installation of earth line may cause electric shock or re.
●
A circuit breaker should be installed depending on the mounting site of the unit. Without
a circuit breaker, the danger of electric shock exists.
●
Do not install near location where there is ammable gas. The outdoor unit may catch
re if ammable gas leaks around it.
●
Please ensure smooth ow of water when installing the drain hose.
●
Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its
mist ows 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
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PRECAUTIONS DURING OPERATION
● 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 insuf ciency.
● Do not direct the cool air coming out from the air-conditioner panel to face
household heating apparatus as this may affect the working of apparatus
such as the electric kettle, oven etc.
● Do not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger n and blocked the evaporation water ow
to drain pan. The water will drop on tangential fan and cause water splashing
out from indoor unit.
● Please ensure that outdoor mounting frame is always stable, rm and
without defect. If not, the outdoor unit may collapse and cause danger.
● Do not splash or direct water to the body of the unit when cleaning it as
this may cause short circuit.
● When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air de ector facing down or moving automatically for a long period of time,
water will condense on the air de ector and drips down occasionally. This will wet your furniture.
Therefore, do not operate under such condition for a long time.
● If the amount of heat in the room is above the cooling 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 in rm 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 they do not play with the appliance.
● Do not climb on the outdoor unit or put objects on it.
● Please switch off the unit and turn off the circuit breaker during cleaning,
the high-speed fan inside the unit may cause danger.
● Turn off the circuit breaker if the unit is not to be operated for a long period.
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● The product shall be operated under the manufacturer speci cation and
not for any other intended use.
● Do not put water container (like vase) on the indoor unit to avoid water
dripping into the unit. Dripping water will damage the insulator inside the
unit and causes short-circuit.
● Do not place plants directly under the air ow as it is bad for the plants.
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INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART
Pre-Filter
To prevent dust from coming into the indoor unit.
(Refer page 20)
Front panel
Indoor unit indicators
Light indicator showing the operating condition.
(Refer page 5)
Horizontal de ector
●
Vertical de ector
(Air Outlet)
(Refer page 15)
Remote controller
Send out operation signal to the indoor unit. So as to operate
the whole unit.
(Refer page 6)
WIDTH (mm)
1030
850
850
MODEL
RAS-50YHA3, RAS-60YHA3
RAC-50YHA3
RAC-60YHA3
HEIGHT (mm)
295
650
750
DEPTH (mm)
207
298
298
MODEL NAME AND DIMENSIONS
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Drain pipe
Condensed water drain to outside.
Connecting cord and insulation pipe for piping
Air inlet
(Back and Left side)
Air outlet
NOTE
● In case of removing the air purifying lters, please follow the above procedures.
● The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying lters are
used. So, set the fan speed to "HIGH" when using it in this condition.
● Air purifying lters are washable and reusable up to 20 times by using vacumm cleaner or water rinse under running
tap water. Type number for this air purifying lter is <SPX-CFH18>. Please use this number for ordering when you
want to renew it.
● Do not operate the air conditioner without lter. Dust may enter the air conditioner and fault may occur.
OUTDOOR UNIT
Drain pipe
Condensed water drain to outside.
Connecting cord and insulation pipe for piping
Air inlet
(Back and Left side)
Air outlet
CAUTION
●
When heating operation, drain or
defrosted water ows out from
outdoor unit. Don’t close drain
outlet portion in chilly area so
as not to freeze these.
RAC-50YHA3
RAC-60YHA3
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INDOOR UNIT INDICATORS
OPERATION INDICATOR
● This gure shows the opening condition of
front panel. Refer to page 19 in relation to
how to open or close the front panel.
FILTER LAMP
When the device is operated for a total of about 200
hours, the FILTER lamp lights to indicate that it is
time to clean the lter. The lamp goes out when the
“ (AUTO SWING)” button is pressed while the
device is on “STANDBY MODE”.
OPERATION LAMP
This lamp lights during operation.
The OPERATION LAMP ashes 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.
TIMER LAMP
This lamp lights when the timer is working.
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick
(example: toothpick)]
● By pressing the temporary switch, the operation is done in previously set operation mode.
● When the operation is done using the temporary switch after the power source is turned off and turn
on again, the operation is done in automatic mode.
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NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT
REMOTE CONTROLLER
● This controls the operation of the indoor unit. Signal range to reach indoor is about 7 meters. If inverter lamp is used,
the range of control may be shorter.
This unit can be xed on a wall using the xture provided. Before xing it, make sure the indoor unit can be controlled
from the remote controller.
● Handle the remote controller with care. Dropping it or getting it wet may compromise its signal transmission capability.
● After new batteries are inserted into the remote controller, the unit will initially require approximately 10 seconds to
respond to commands and operate.
●
Signal emitting window/transmission sign
Point this window toward the indoor unit when controlling it.
The transmission sign blinks when a signal is sent.
● Display
This indicates the room temperature selected, current time, timer status, function
and intensity of circulation selected.
● START/STOP button
Press this button to start operation. Press it again to stop operation.
● SLEEP button
Use this button to set the sleep timer.
● TEMPERATURE buttons
Use these buttons to raise or lower the temperature setting. (Keep pressed,
and the value will change more quickly.)
● TIME button
Use this button to set and check the time and date.
● RESET buttons
● FUNCTION selector
Use this button to select the operating mode. Every time you press it,
the mode will change from (AUTO) to (HEAT) to (DEHUMIDIFY) to
(COOL) and to (FAN) cyclically.
● FAN SPEED selector
This determines the fan speed. Every time you press this button, the intensity
of circulation will change from (AUTO) to (HI) to (MED) to (LOW)
to (SILENT) (This button allows selecting the optimal or preferred fan speed
for each operation mode).
● AUTO SWING button
Controls the angle of the horizontal air de ector.
● TIMER control
Use this button to set the timer.
● OFF-TIMER button Select the turn OFF time.
● ON-TIMER button Select the turn ON time.
● RESERVE button Time setting reservation.
● CANCEL button Cancel time reservation.
Precautions for Use
● Do not put the remote controller in the following places.
● Under direct sunlight.
● In the vicinity of a heater.
● Handle the remote controller carefully. Do not drop it on the oor,
and protect it from water.
● Once the outdoor unit stops, it will not restart for about 3 minutes
(unless you turn the power switch off and on or unplug the power
cord and plug it in again).
This is to protect the device and does not indicate a failure.
● If you press the FUNCTION selector button during operation, the
device may stop for about 3 minutes for protection.
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AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT or COOL depending on the current room temperature.
The selected mode of operation will change when the room temperature varies.
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 air ow 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 air ow
direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent or OFF by remote control.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
■ As the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
Press the FUNCTION selector so that the display indicates the (AUTO)
mode of operation.
● When AUTO has been selected, the device will automatically determine
the mode of operation, HEAT, COOL or DEHUMIDIFY depending on
the current room temperature. However the mode of operation will
not change when indoor unit connected to multi type outdoor unit.
● If the mode automatically selected by the unit is not satisfactory,
manually change the mode setting (heat, dehumidify, cool or fan).
Press the (START/STOP) button.
Operation starts with a beep.
Press the button again to stop operation.
You can raise or lower the temperature setting as necessary by maximum
of 3°C.
Press the temperature button and the temperature
setting will change by 1°C each time.
● The preset temperature and the actual room temperature may vary
somewhat depending on conditions.
● The display does not indicate the preset temperature in the AUTO mode.
If you change the setting, the indoor unit will produce a beep.
1
START
STOP
Press the (FAN SPEED) button, AUTO, LOW and SILENT is available.
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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).
Set the desired FAN SPEED with the (FAN SPEED) button
(the display indicates the setting).
(AUTO) : The fan speed changes automatically
according to the temperature of the air which
blows out.
(HI) : Economical as the room will become warm
quickly.
But you may feel a chill at the beginning.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
(SILENT) : Fan speed ultra slow.
Set the desired room temperature with the TEMPERATURE
buttons (the display indicates the setting).
The temperature setting and the actual room temperature may
vary somewhat depending on conditions.
Press the (START/STOP) button. Heating operation starts
with a beep. Press the button again to stop operation.
■ As the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
1
2
3
START
STOP
■ Defrosting
Defrosting will be performed about once an hour when frost forms on the heat exchange of the outdoor
unit, for 5~10 minutes each time.
During defrosting operation, the operation lamp blinks in cycle of 3 seconds on and 0.5 second off.
The maximum time for defrosting is 20 minutes.
However, if it is connected to multi type outdoor unit, the maximum time for defrosting is 15 minutes.
(If the piping length used is longer than usual, frost will likely to form.)
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