Hitachi RAC-32CNH2 User manual

SPLIT TYPE
HITACHI
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAS-32CNH2/RAC-32CNH2
Instruction manual Page 1~18
To obtain the best performance and ensure years of trouble free use, please read this instruction manual
completely.
OUTDOOR UNIT INDOOR UNIT
RAS-32CNH2
RAC-32CNH2
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32CNH2 EN1 3/25/05, 2:301

– 2 –
!
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. Please observe all instructions strictly to ensure safety.
●“ ” sign in attached figure indicates prohibition.
●Please keep this manual after reading.
WARNING
PRECAUTIONS DURING INSTALLATION
●Please ask your sales agent or qualified technician for the installation
of your unit. Water leakage, short circuit or fire may occur if you install
the unit 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.
●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 flammable gas. The outdoor
unit may catch fire if flammable gas leaks around it.
●Please ensure smooth flow of water when installing the drain hose.
CAUTION
!
!
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
●Avoid an extended period of direct air flow for your health.
W
A
R
N
I
N
G
!
●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 fire 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 fire.
●Please contact your agent if you need to remove and reinstall the unit.
Electric shock or fire may occur if you remove and reinstall the unit yourself
improperly.
WARNING
!
●Do not put objects like thin rods into the panel of blower and suction side
because the high-speed fan inside may cause danger.
●During thunder storm, disconnect and turn off the circuit breaker.
●Do not use any conductor as fuse wire, this could cause fatal accident.
!
32CNH2 EN1 3/25/05, 2:302

– 3 –
ENGLISH
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.
●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 place plants directly under the air flow as it is bad for the plants.
●Please ensure that outdoor mounting frame is always stable, firm 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.
●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.
●When operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deflector facing down or moving automatically for a long period of time,
water will condense on the air deflector 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 capability of the unit (for example: more
people entering the room, using heating equipments and etc.), the preset room temperature
cannot be achieved.
●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.
C
A
U
T
I
O
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!
32CNH2 EN1 3/25/05, 2:303

– 4 –
INDOOR UNIT
OUTDOOR UNIT
WIDTH (mm)
798
820
MODEL
RAS-32CNH2
RAC-32CNH2
HEIGHT (mm)
265
520
DEPTH (mm)
168
280
MODEL NAME AND DIMENSIONS
NAMES AND FUNCTIONS OF EACH PART
AIR FILTER
To prevent dust from coming into the indoor unit.
(Refer page 16)
POWER PLUG (NOT PROVIDED)
INDOOR UNIT INDICATORS
Light indicator showing the operating condition.
(Refer page 5)
SUCTION GRILL (AIR INLET)
HORIZONTAL DEFLECTOR ●VERTICAL
DEFLECTOR (AIR OUTLET)
(Refer page 12)
REMOTE CONTROL
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 6)
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK, LEFT SIDE)
AIR OUTLET
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32CNH2 EN1 3/25/05, 2:304

– 5 –
ENGLISH
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OFF
NORMAL AUTO
START TEMPORARY
SWITCH
ON
INDOOR UNIT INDICATORS
TEMPORARY SWITCH
Use this switch to start and
stop when the remote
controller does not work.
Normally do not use this
button.
OPERATION INDICATOR
OPERATION LAMP
This lamp lights during operation.
The OPERATION LAMP flashes 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.
FILTER LAMP
When the device is operated for a total of about 100
hours, the FILTER lamp lights to indicate that it is time
to clean the filter. The lamp goes out when the POWER
SWITCH set to OFF and ON again.
SIGNAL RECEIVER
There will be a beep sound when this receiver receives
signal from remote controller.
TIMER LAMP
This lamp lights when the timer is working.
POWER SWITCH
SELECTOR SWITCH
AUTO START
Use this switch in order to set
the unit to automatically switch
ON after the power supply
resuming from the power failure.
NORMAL
Use this switch in order to
prevent the unit from switch ON
after the power supply resuming
from the power failure.
SELECTOR SWITCH IS
PRESET AT NORMAL
POSITION.
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32CNH2 EN1 3/25/05, 2:305

–6 –
NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT
■This controls the operation function and timer setting of the room air conditioner. The range of
control is about 4 meters. If indoor lighting is controlled electronically, the range of control may be
shorter.
Precautions for Use
●Do not put the remote controller in direct
sunlight and high temperature.
●Do not drop it on the floor, and protect
it from water.
●If you press the FUNCTION button
during operation, the air conditioner may
stop for about 3 minutes for protection
before you can start it again.
You can use the remote controller by fixing it on the
wall with the accessory parts.
●Before fixing it,
make sure the
unit can be
controlled by the
remote control
unit at the fixing
position.
REMOTE
CONTROLLER
HOLDER
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.
(Page 10)
Reserve Button
Timer setting reservation.
OFF TIMER Button
Select the turn OFF time.
ON TIMER Button
Select the turn ON time.
Transmission Sign
The transmission sign blinks
when a signal has been send.
TEMPERATURE Button
Room temperuture setting.
Value will change more quickly
when keep pressing.
(Page 7)
FAN SPEED Button
Select the fan speed for
cooling and heating mode.
(Page 8)
AUTO SWING Button
Control the angle of the
horizontal air deflector.
( Page 12)
CANCEL Button
Cancel timer reservation.
Signal Transmission
FUNCTION Button
Select the operation mode.
(Page 8)
C
˚
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HITACHI
°C
32CNH2 EN1 3/25/05, 2:306

–7 –
ENGLISH
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.
1
Press the (START/STOP) button
●Operation start with a “beep”sound.
Press the (START/STOP) button
●Make sure the (Automatic) mode have been selected by using
the (FUNCTION) button.
●The fan speed selector does not work at this operation.
STOP
Press the (ROOM TEMPERATURE) button
●Temperature setting change by 1°C for each 1 time press.
Up
Down
●You can raise or lower the temperature setting by a maximum of
3°C.
●The display does not indicate the preset temperature in the Automatic
mode. Device will receive the setting by a “beep”.
■You can slightly adjust the room temperature.
1
°C
°C
▲ ▲
■CONDITION OF AUTOMATIC OPERATION
●The selected mode of operation will not change during the operation even though the room
temperature change.
Over 27°C COOL
23 ~ 27°C
FUNCTION
27°C
Slightly lower than the
room temperature LOW
FAN SPEED
HIGH at start, LOW after
the preset temperature is
reached
-
DRY
-
INITIAL ROOM
TEMPERATURE (APPROX.)
TEMPERATURE
SETTING
Under 23°C HEAT 23°CHIGH at start, MED or
LOW after the preset
temperature is reached
-
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32CNH2 EN1 3/25/05, 2:307

–8 –
MANUAL OPERATION [Heating ●Dehumidify ●Cooling]
■Please use under below condition when you want to set the function mode, room temperature and
fan speed by manually.
1
OPERATION MODE SELECTION
●Every time you press the button, the mode will change as the below
sequence
(Auto) [(Heat) [(Dry) [(Cool)
2
ROOM TEMPERATURE SETTING
Up
Down
●The cooling operation does not start if the
temperature setting is higher than the current
room temperature.
3
FAN SPEED SETTING
●Every time you press the button, fan speed will change as the
below sequence.
●HEATING : AUTO [HIGH [MED [LOW
COOLING : ( [[[)
●DEHUMIDIFYING : LOW (FIXED)
: ( )
4
Press the (START/STOP) button
●Operation start with a signal received sound “beep”.
Press the (START/STOP) button
●As the settings are stored in memory in the remote control unit, you
only have to press the (Start/Stop) button in order to use the
same setting next time.
STOP
HEATING
Outdoor Temperature
21°C below
DEHUMIDIFYING
Room Temperature
16°C above
COOLING
Outdoor Temperature
22°C above
°C
Heating 20~24°C
Dehumidify 20~26°C
Cooling 25~28°C
■Recommend Temperature
▲ ▲
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}
HITACHI
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32CNH2 EN1 3/25/05, 2:308

–9 –
ENGLISH
TIMER RESERVATION
■ON Timer and OFF Timer are available.
1
OFF TIME setting
●Select the OFF TIME by pressing the (OFF)
Button.
●Setting time will change according to the below
sequence when you press the button.
●The value change more quickly if you keep pressing
the button.
OFF Timer Reservation
■Operation stop at setting time
2
Press the (Reserve) button
●OFF TIMER reserved with a signal received sound
“beep”.
●The (OFF) Mark starts lighting instead of blinking.
0.5 1.0 1.5 9.5 10 11 12
0.5 hour interval 1 hour interval
1
ON TIME setting
●Select the ON TIMER by pressing the (ON)
Button.
●At the beginning of setting, time 6 hours was set.
●Setting time will change according to the below
sequence.
●The value change more quickly if you keep pressing
the button.
ON Timer Reservation
0.5 1.0 1.5 9.5 10 11 12
0.5 hour interval 1 hour interval
1
Press the (Cancel) button
●As the time settings are stored in remote controller
memory, you only have to press the (Reserve)
button in order to use the same setting next time.
CANCELLATION of Timer Reservation
2
Press the (Reserve) button
●ON TIMER reserved with a signal received sound
“beep”.
●The (ON) Mark starts lighting instead of blinking.
o
■Operation will start for setting
temperature at setting time (The starting
time may different depend on the room
temperature and set temperature).
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32CNH2 EN1 3/25/05, 2:309

– 10 –
HOW TO SET THE SLEEP TIMER
Mode
Sleep timer
Indication
1 hour 2 hours 3 hours 7 hours
Sleep timer off
44 44
1
Sleep Timer: The device will continue working for the designated
number of hours and then turn off.
Point the signal window of the remote controller toward the indoor
unit, and press the SLEEP button.
The timer information will be displayed on the remote controller.
The TIMER lamp lights with a beep from the indoor unit.
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCEL)
button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor unit.
NOTE
If you set the sleep timer when the off-timer or
on/off-timer has been set earlier, the sleep timer
becomes effective instead of the off- or on/off-
timer set earlier.
Hr.
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°C
Example: Setting 3 hours
sleep time.
32CNH2 EN2 3/25/05, 2:3310