Hitachi RAF50NH4 User manual
SPLIT TYPE AIR CONDITIONER
INDOOR UNITS/OUTDOOR UNIT
RAD25QH4
RAD40QH4
û
CH
RAF25NH4
RAF50NH4
RAM70QH4
RAM80QH4
RAM70QH4
(MULTIZONE 70H)
RAM80QH4
(MULTIZONE 80H)
RAF25NH4
RAF50NH4
RAD25QH4
RAD40QH4
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Ð45Ð
FULL DUCT
Discharge grille
Air deflector Indicator
Suction grille
Filter
Remote controller
Remote controller
Remote controller
Air deflector
Discharge grille
Discharge grille
Indicator
Suction grille
Filter
Indicator
Suction grille
Filter
Air deflector
SEMI DUCT O DUCT
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.
¥You cannot operate the indoor units in
the following combinations.
One unit Other unit
Cooling
Heating Dehumidifying
Circulating (fan)
¥ The indoor unit which is switched on first continues to
operate, but other indoor units which is switched on later
does not operate while the lamp lights.
¥Torestart an indoor unit which was operated later, stop
the indoor unit which was operated first or later and reset
the type of operation, then perform operation again.
!" # ! !
Decrease the number of
indoor units to be operated
especially when it is very hot
or very cold or when you
want to reach the preset
temperature quickly.
!
When an indoor unit is operated in the cooling,
heating or dehumidifying mode in one 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
indoor unit returns refrigerant to the outdoor
unit to be ready for operation.
$
MODEL WIDTH HEIGHT DEPTH
RAD-25QH4
RAD-40QH4 750mm (29-17/32") 235mm (9-1/4") 400mm (15-3/4")
(I DOOR U IT)
OPERATIO lamp
This lamp lights during
operation.
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller
does not work. ormally do not use this button.
HOT KEEP lamp
This lamp lights in the following cases during heating. While
this is lit, heated air will not come out of the indoor unit.
(1) During preheating
For about 2-3 minutes after start up.
(2) During defrosting
Defrosting will be performed about once an hour when frost
formsonthe heat exchanger of the outdoor unit, for 5-10
minutes each time.
TIMER lamp
This lamp lights when the timer is working.
%&'() (*'(
Ð45Ð
FULL DUCT
Discharge grille
Air deflector Indicator
Suction grille
Filter
Remote controller
Remote controller
Remote controller
Air deflector
Discharge grille
Discharge grille
Indicator
Suction grille
Filter
Indicator
Suction grille
Filter
Air deflector
SEMI DUCT O DUCT
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.
¥You cannot operate the indoor units in
the following combinations.
One unit Other unit
Cooling
Heating Dehumidifying
Circulating (fan)
¥ The indoor unit which is switched on first continues to
operate, but other indoor units which is switched on later
does not operate while the lamp lights.
¥Torestart an indoor unit which was operated later, stop
the indoor unit which was operated first or later and reset
the type of operation, then perform operation again.
!" # ! !
Decrease the number of
indoor units to be operated
especially when it is very hot
or very cold or when you
want to reach the preset
temperature quickly.
!
When an indoor unit is operated in the cooling,
heating or dehumidifying mode in one 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
indoor unit returns refrigerant to the outdoor
unit to be ready for operation.
$
MODEL WIDTH HEIGHT DEPTH
RAD-25QH4
RAD-40QH4 750mm (29-17/32") 235mm (9-1/4") 400mm (15-3/4")
(I DOOR U IT)
OPERATIO lamp
This lamp lights during
operation.
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller
does not work. ormally do not use this button.
HOT KEEP lamp
This lamp lights in the following cases during heating. While
this is lit, heated air will not come out of the indoor unit.
(1) During preheating
For about 2-3 minutes after start up.
(2) During defrosting
Defrosting will be performed about once an hour when frost
formsonthe heat exchanger of the outdoor unit, for 5-10
minutes each time.
TIMER lamp
This lamp lights when the timer is working.
%&'() (*'(
Ð46Ð
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.
¥You cannot operate the indoor units in
the following combinations.
One unit Other unit
ooling
Heating Dehumidifying
irculating (fan)
¥ The indoor unit which is switched on first continues to
operate, but other indoor units which is switched on later
does not operate while the lamp lights.
¥Torestart an indoor unit which was operated later, stop
the indoor unit which was operated first or later and reset
the type of operation, then perform operation again.
Decrease the number of
indoor units to be operated
especially when it is very hot
or very cold or when you
want to reach the preset
temperature quickly.
When an indoor unit is operated in the cooling,
heating or dehumidifying mode in one 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
indoor unit returns refrigerant to the outdoor
unit to be ready for operation.
! ! " #
$
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)$& &$ ' &(
& $*
! & ' +(
)$& &$ ' &(
&
$&&
MODEL WIDTH HEIGHT DEPTH
RAF-25NH4
RAF-50NH4 750mm (29-17/32") 600mm (23-5/8") 215mm (8-15/32")
(INDOOR UNIT)
, "
&
¥Toopenthefrontpanel, use the remote controller to stop unitoperation.Thenpress
thetwoÒ Ó sections below PUSH at the topleftandright corners of the front panel.
¥ Grasp the left and right sides of the front panel and open it toward you.
& &
¥Toclose the front panel, press the two Ò Ó sections below PUSH at the top left and
right corners of the front panel.
¥ Press the upper center part of the front panel to close properly.
"- # " ! #
&
This lamp lights when the timer is working.
# &
This lamp lights during operation.
During heating, the operation indicator may blink, blowing
very lightly or totally stopping under the following
conditions:
(1)
' (
For about 2~3 minutes after start up.
(2)
' (
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.(If the piping length used
is longer than usual, frost will likely to form.)
! &
This lamp lights when the device is operated
foratotal of about 100 hours, it is time to clean
the filter. The lamp goes out when the
Ò(AUTO SWING)Ó button is pressed while
the operation is stopped.
#. -"
-"
Upper center part
OOLING OPERATION
¥Ifcooling is started at an AUTO or HI fan speed
setting, and if a considerable difference is present
between the room temperature and preset
temperature, the damper inside of the bottom air
outlet will automatically open to allow cold air to
also be directed out of the bottom side air outlet.
When the room temperature reaches the preset temperature or after approximately 30 minutes have elapsed from
starting operation, cold air will automatically be directed only from the top side air outlet.
¥ When it is desirable to direct cold air from the bottom side air outlet for a longer period of time, set the temperature
at 16¡ and fan speed at HI. When the room temperature is more than 8¡ above the preset temperature (16¡ ),
cold air will continuously blow from the bottom side air outlet.
DEHUMIDIFYING OPERATION
¥ For more efficient dehumidifying, the bottom side air outlet will remain closed.
FAN OPERATION
¥ Air blows out only from top side air outlet.
AIR OUTLET SWIT H IS SET TO
¥ Air blows out only from top side air outlet in both heating and cooling operation.
¥ Air can be blown only from top side air outlet, to prevent blowing air striking your face during sleep, etc.
¥Ifair blows out only from the top side air outlet, it takes more time to reach the set temperature when compared to
air blowing from both top and bottom side air outlets. Also, temperature distribution within the room may be adversely
affected. It is therefore recommended to use both top and bottom side air outlets whenever possible.
#. -"
If the remote controller does not work due to battery failure,
press this switch to start and stop operation.
¥ This temporary operation will be at the most recent setting
made.(The unit will immediately go into automaticoperation
once power is switched on.)
-"
AIR OUTLET SWIT H IS SET TO
HEATING OPERATION
¥Asoperation starts, warm air is automatically discharged
from top and bottom side air outlets.
¥ Whentheroomtemperature reaches the preset temperature,
air is directed only from top side air outlet at the LOW fan
speed.
#
!/0"12 !03"1
Ð46Ð
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.
¥You cannot operate the indoor units in
the following combinations.
One unit Other unit
ooling
Heating Dehumidifying
irculating (fan)
¥ The indoor unit which is switched on first continues to
operate, but other indoor units which is switched on later
does not operate while the lamp lights.
¥Torestart an indoor unit which was operated later, stop
the indoor unit which was operated first or later and reset
the type of operation, then perform operation again.
Decrease the number of
indoor units to be operated
especially when it is very hot
or very cold or when you
want to reach the preset
temperature quickly.
When an indoor unit is operated in the cooling,
heating or dehumidifying mode in one 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
indoor unit returns refrigerant to the outdoor
unit to be ready for operation.
! ! " #
$
"%& &$ ' &(
)$& &$ ' &(
& $*
! & ' +(
)$& &$ ' &(
&
$&&
MODEL WIDTH HEIGHT DEPTH
RAF-25NH4
RAF-50NH4 750mm (29-17/32") 600mm (23-5/8") 215mm (8-15/32")
(INDOOR UNIT)
, "
&
¥Toopenthe front panel, usetheremotecontrollerto stop unitoperation.Thenpress
thetwoÒ Ó sections below PUSH atthetopleftand right cornersofthefrontpanel.
¥ Grasp the left and right sides of the front panel and open it toward you.
& &
¥Toclose the front panel,pressthe twoÒ Ó sectionsbelow PUSH at the topleft and
right corners of the front panel.
¥ Press the upper center part of the front panel to close properly.
"- # " ! #
&
This lamp lights when the timer is working.
# &
This lamp lights during operation.
During heating, the operation indicator may blink, blowing
very lightly or totally stopping under the following
conditions:
(1)
' (
For about 2~3 minutes after start up.
(2)
' (
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.(If the piping length used
is longer than usual, frost will likely to form.)
! &
This lamp lights when the device is operated
foratotal of about 100 hours, it is time to clean
the filter. The lamp goes out when the
Ò(AUTO SWING)Óbutton is pressed while
the operation is stopped.
#. -"
-"
Upper center part
OOLING OPERATION
¥Ifcooling is started at an AUTO or HI fan speed
setting, and if a considerable difference is present
between the room temperature and preset
temperature, the damper inside of the bottom air
outlet will automatically open to allow cold air to
also be directed out of the bottom side air outlet.
When the room temperature reaches the preset temperature or after approximately 30 minutes have elapsed from
starting operation, cold air will automatically be directed only from the top side air outlet.
¥ When it is desirable to direct cold air from the bottom side air outlet for a longer period of time, set the temperature
at 16¡ and fan speed at HI. When the room temperature is more than 8¡ above the preset temperature (16¡ ),
cold air will continuously blow from the bottom side air outlet.
DEHUMIDIFYING OPERATION
¥ For more efficient dehumidifying, the bottom side air outlet will remain closed.
FAN OPERATION
¥ Air blows out only from top side air outlet.
AIR OUTLET SWIT H IS SET TO
¥ Air blows out only from top side air outlet in both heating and cooling operation.
¥ Air can be blown only from top side air outlet, to prevent blowing air striking your face during sleep, etc.
¥Ifair blows out only from the top side air outlet, it takes more time to reach the set temperature when compared to
air blowing from both top and bottom side air outlets. Also, temperature distribution within the room may be adversely
affected. It is therefore recommended to use both top and bottom side air outlets whenever possible.
#. -"
If the remote controller does not work due to battery failure,
press this switch to start and stop operation.
¥ This temporary operation will be at the most recent setting
made.(Theunitwillimmediately gointoautomatic operation
once power is switched on.)
-"
AIR OUTLET SWIT H IS SET TO
HEATING OPERATION
¥Asoperation starts, warm air is automatically discharged
from top and bottom side air outlets.
¥ Whenthe roomtemperaturereachesthe presettemperature,
air is directed only from top side air outlet at the LOW fan
speed.
#
!/0"12 !03"1
Ð47Ð
¥ 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 fixed on a wall using the fixture provided. Before fixing it, ma e 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.
¥Donot put the remote controller in the following places.
¥Indirect sunlight
¥Inthe vicinity of a heater.
¥ Handle the remote controller carefully. Do not drop it on the floor, 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.
¥Ifyou press the FUNCTION selector button during operation, the device may
stop for about 3 minutes for protection.
!
Point this window toward the indoor unit when controlling it.
The transmission sign blin s when a signal is sent.
"#
This indicates the room temperature selected, current time, timer status, function
and intensity of circulation selected.
! $
Press this button to start operation. Press it again to stop operation.
$
Use this button to set the sleep timer.
$
Use these buttons to raise or lower the temperature setting.(Keep pressed, and
the value will change more quic ly.)
$
Use this button to set and chec the time and date.
$
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.
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).
(This button allows selecting the optimal or preferred fan speed for each operation
mode.)
%& $
Controls the angle of the horizontal air deflector.
Use these buttons to set the timer.
' $
Select the turn OFF time.
' $
Select the turn ON time.
( $
Time setting reservation.
$
Cancel time reservation.
AUTO
HEAT
DEHUMIDIFY
COOL
FAN
FAN SPEED
LOW
MED
HI
SLEEPING
STOP (CANCEL)
START (RESERVE)
START/STOP
TIME
TIMER SET
TIMER SELECTOR
ON TIMER
OFF TIMER
AUTO SWING
&
(
¥Ifthere is a power failure, operation will be automatically restarted when the power is resumed with
previous operation mode and airflow direction.
(As the operation is not stopped by remote controller.)
¥Ifyou intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit brea er, the operation will be automatically restarted with previous
operation mode and airflow direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
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 change when the room temperature
varies.
Press the (FAN SPEED) button, AUTO and LOW is available.
Press the (START/STOP) button.
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.
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.
)
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.
Ð47Ð
¥ 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 fixed on a wall using the fixture provided. Before fixing it, ma e 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.
¥Donot put the remote controller in the following places.
¥Indirect sunlight
¥Inthe vicinity of a heater.
¥ Handle the remote controller carefully. Do not drop it on the floor, 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.
¥Ifyou press the FUNCTION selector button during operation, the device may
stop for about 3 minutes for protection.
!
Point this window toward the indoor unit when controlling it.
The transmission sign blin s when a signal is sent.
"#
This indicates the room temperature selected, current time, timer status, function
and intensity of circulation selected.
! $
Press this button to start operation. Press it again to stop operation.
$
Use this button to set the sleep timer.
$
Use these buttons to raise or lower the temperature setting.(Keep pressed, and
the value will change more quic ly.)
$
Use this button to set and chec the time and date.
$
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.
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).
(This button allows selecting the optimal or preferred fan speed for each operation
mode.)
%& $
Controls the angle of the horizontal air deflector.
Use these buttons to set the timer.
' $
Select the turn OFF time.
' $
Select the turn ON time.
( $
Time setting reservation.
$
Cancel time reservation.
AUTO
HEAT
DEHUMIDIFY
COOL
FAN
FAN SPEED
LOW
MED
HI
SLEEPING
STOP (CANCEL)
START (RESERVE)
START/STOP
TIME
TIMER SET
TIMER SELECTOR
ON TIMER
OFF TIMER
AUTO SWING
&
(
¥Ifthere is a power failure, operation will be automatically restarted when the power is resumed with
previous operation mode and airflow direction.
(As the operation is not stopped by remote controller.)
¥Ifyou intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit brea er, the operation will be automatically restarted with previous
operation mode and airflow direction.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
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 change when the room temperature
varies.
Press the (FAN SPEED) button, AUTO and LOW is available.
Press the (START/STOP) button.
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.
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.
)
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.
Ð48Ð
¥ 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.
¥Inorder 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).
As the settings are stored in memory in the remote controller you only have
to press the (START/STOP) button next time.
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) : Quiet.
(LOW) : More quiet.
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.
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.
¥When you want to change the operation mode please use the FUNCTION
selector.
¥ Set the desired temperature is available.
¥You also can use the FUNCTION selector to select this operation.
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.
Press the (START/STOP) button.
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: Dehumidifying will be performed with the
room temperature set slightly lower than the current room temperature whatever the temperature setting.The
function will stop (the indoor unit will stop emitting air) as soon as the room temperature becomes lower than
the setting.
!
Ð48Ð
¥ 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.
¥Inorder 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).
As the settings are stored in memory in the remote controller you only have
to press the (START/STOP) button next time.
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) : Quiet.
(LOW) : More quiet.
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.
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.
¥When you want to change the operation mode please use the FUNCTION
selector.
¥ Set the desired temperature is available.
¥You also can use the FUNCTION selector to select this operation.
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.
Press the (START/STOP) button.
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: Dehumidifying will be performed with the
room temperature set slightly lower than the current room temperature whatever the temperature setting.The
function will stop (the indoor unit will stop emitting air) as soon as the room temperature becomes lower than
the setting.
!
Ð49Ð
Press the FUNCTION selector so that the display indicates
(COOL).
As the settings are stored in e ory in the re ote controller, you only have
to press the (START/STOP) button next ti e.
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) : The FAN SPEED is HI at first and varies to MED
auto atically when the preset te perature has
been reached.
(HI) : Econo ical as the roo will beco e cool quickly.
(MED) : Quiet.
(LOW) : More quiet.
Set the desired roo te perature with the TEMPERATURE buttons
(the display indicates the setting).
The te perature setting and the actual roo te perature ay vary
so ewhat depending on conditions.
Press the (START/STOP) button.Cooling operation starts with a
beep. Press the button again to stop operation.The cooling function
does not start if the te perature setting is higher than the current
roo te perature (even though the (OPERATION) la p lights).
The cooling function will start as soon as you set the te perature
below the current roo te perature.
Use the device for cooling when the outdoor te perature is 22-42¡C.
If hu idity is very high (over 80%) indoors, so e dew ay for on the air outlet grille of the indoor unit.
You can use the device si ply as an air circulator. Use this function to dry the interior of the indoor unit at
the end of su er.
É When the AUTO fan speed ode is set in the cooling/heating operation:
For the cooling operation
For the heating operation
¥ The fan speed will auto atically change according to the te perature of
discharged air.
¥Asroo te perature reaches the preset te perature, a very light breeze
will blow.
¥ Operation starts in the ÒHIÓ ode to reach the preset te perature.
¥Asroo te perature approaches the preset te perature, fan speed
auto atically switches to ÒLOWÓ.
Press the (START/STOP) button.Fan operation starts with a beep.
Press the button again to stop operation.
Press the (FAN SPEED) button.
(HI) : The strongest air blow.
(MED) : Quiet.
(LOW) : More quiet.
Press the FUNCTION selector so that the display indicates (FAN).
Ð49Ð
Press the FUNCTION selector so that the display indicates
(COOL).
As the settings are stored in e ory in the re ote controller, you only have
to press the (START/STOP) button next ti e.
Set the desired FAN SPEED with the (FAN SPEED) button (the
display indicates the setting).
(AUTO) : The FAN SPEED is HI at first and varies to MED
auto atically when the preset te perature has
been reached.
(HI) : Econo ical as the roo will beco e cool quickly.
(MED) : Quiet.
(LOW) : More quiet.
Set the desired roo te perature with the TEMPERATURE buttons
(the display indicates the setting).
The te perature setting and the actual roo te perature ay vary
so ewhat depending on conditions.
Press the (START/STOP) button.Cooling operation starts with a
beep. Press the button again to stop operation.The cooling function
does not start if the te perature setting is higher than the current
roo te perature (even though the (OPERATION) la p lights).
The cooling function will start as soon as you set the te perature
below the current roo te perature.
Use the device for cooling when the outdoor te perature is 22-42¡C.
If hu idity is very high (over 80%) indoors, so e dew ay for on the air outlet grille of the indoor unit.
You can use the device si ply as an air circulator. Use this function to dry the interior of the indoor unit at
the end of su er.
É When the AUTO fan speed ode is set in the cooling/heating operation:
For the cooling operation
For the heating operation
¥ The fan speed will auto atically change according to the te perature of
discharged air.
¥Asroo te perature reaches the preset te perature, a very light breeze
will blow.
¥ Operation starts in the ÒHIÓ ode to reach the preset te perature.
¥Asroo te perature approaches the preset te perature, fan speed
auto atically switches to ÒLOWÓ.
Press the (START/STOP) button.Fan operation starts with a beep.
Press the button again to stop operation.
Press the (FAN SPEED) button.
(HI) : The strongest air blow.
(MED) : Quiet.
(LOW) : More quiet.
Press the FUNCTION selector so that the display indicates (FAN).
Ð50Ð
PM PM
AM
PM
AM
M D
M D
AM
Stop
Start
HOW TO SET THE TIMER
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCE )
button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor
unit.
NOTE
You can set only one of the OFF-timer,
ON-timer and ON/OFF-timer.
TIME, DAY,
MONTH (current
time, day, month)
OFF TIMER
ON TIMER
RESERVE
CANCE
1
Set the current month and day
with the TIMER control button.
1
Press the (OFF-TIMER)
button.The (OFF) mark blinks on
the display.
After you change the
batteries;
You can set the device to turn off at
the present time.
Time, Day, Month
1
Press the (ON-TIMER)
button. The (ON) mark blinks on
the display.
The device will turn on at the
designated times.
1
Press the
(ON-OFF) button so
that the (OFF)
mark blinks.
2
Set the turn-off time
with the TIMER control
button.
Press the (RESERVE)
button.
3
Press the (ON-
TIMER) button so that the
(OFF) mark lights and
the (ON) mark blinks.
¥ The device will turn on (off) and
off (on) at the designated times.
¥ The switching occurs first at the
preset time that comes earlier.
¥The arrow mark appearing on the
display indicates the sequence of
switching operations.
StopStart
Start
Stop
O -Timer
ON-Timer
ON/O -Timer
ENGLISH
AM
AM
AM
PM
AM
PM
PM
PM
AM
PM
PM
PM
¥ The timer may be used in three ways: off-timer, on-timer and ON/OFF (OFF/ON)-timer. Set the current time
at first because it serves as a reference.
¥Asthe time settings are stored in memory in the remote controller, you only have to press the (RESERVE)
button is order to use the same settings next time.
3
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
2
Set the turn-on time with the
TIMER control button.
Example:
The device will turn on at 7:00 a.m.
The setting of the turn-on time is now complete.
4
Set the turn-on time with the
TIMER control button.
Example:
The device will turn off at 10:30p.m. and it will be
turned on at 7:00 a.m.
The settings of the turn-on/off time are now
complete.
5
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED) sign
lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
2
Set the
(TIME) button.
Example: The current time is 1:30p.m.
¥The time indication will
disappear automatically in 10
seconds.
¥Tocheck the current time
setting, press the (TIME)
button twice.
The setting of the current time
is now complete.
3
Set the current time with
the TIMER control button.
4
Press the (TIME) button
again.The time indication starts
lighting instead of flashing.
2
Set the turn-off time with the
TIMER control button.
3
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (OFF) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
Example: The device will turn off at 11:00p.m.
The setting of turn-off time is now complete.
Ð50Ð
PM PM
AM
PM
AM
M D
M D
AM
Stop
Start
HOW TO SET THE TIMER
How to Cancel Reservation
Point the signal window of the remote controller toward the indoor unit, and press the (CANCE )
button.
The (RESERVED) sign goes out with a beep and the (TIMER) lamp turns off on the indoor
unit.
NOTE
You can set only one of the OFF-timer,
ON-timer and ON/OFF-timer.
TIME, DAY,
MONTH (current
time, day, month)
OFF TIMER
ON TIMER
RESERVE
CANCE
1
Set the current month and day
with the TIMER control button.
1
Press the (OFF-TIMER)
button.The (OFF) mark blinks on
the display.
After you change the
batteries;
You can set the device to turn off at
the present time.
Time, Day, Month
1
Press the (ON-TIMER)
button. The (ON) mark blinks on
the display.
The device will turn on at the
designated times.
1
Press the
(ON-OFF) button so
that the (OFF)
mark blinks.
2
Set the turn-off time
with the TIMER control
button.
Press the (RESERVE)
button.
3
Press the (ON-
TIMER) button so that the
(OFF) mark lights and
the (ON) mark blinks.
¥ The device will turn on (off) and
off (on) at the designated times.
¥ The switching occurs first at the
preset time that comes earlier.
¥The arrow mark appearing on the
display indicates the sequence of
switching operations.
StopStart
Start
Stop
O -Timer
ON-Timer
ON/O -Timer
ENGLISH
AM
AM
AM
PM
AM
PM
PM
PM
AM
PM
PM
PM
¥ The timer may be used in three ways: off-timer, on-timer and ON/OFF (OFF/ON)-timer. Set the current time
at first because it serves as a reference.
¥Asthe time settings are stored in memory in the remote controller, you only have to press the (RESERVE)
button is order to use the same settings next time.
3
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
2
Set the turn-on time with the
TIMER control button.
Example:
The device will turn on at 7:00 a.m.
The setting of the turn-on time is now complete.
4
Set the turn-on time with the
TIMER control button.
Example:
The device will turn off at 10:30p.m. and it will be
turned on at 7:00 a.m.
The settings of the turn-on/off time are now
complete.
5
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (ON) mark starts lighting instead of flashing and the (RESERVED) sign
lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
2
Set the
(TIME) button.
Example: The current time is 1:30p.m.
¥The time indication will
disappear automatically in 10
seconds.
¥Tocheck the current time
setting, press the (TIME)
button twice.
The setting of the current time
is now complete.
3
Set the current time with
the TIMER control button.
4
Press the (TIME) button
again.The time indication starts
lighting instead of flashing.
2
Set the turn-off time with the
TIMER control button.
3
Point the signal window of the remote controller toward the indoor unit, and
press the (RESERVE) button.
The (OFF) mark starts lighting instead of flashing and the (RESERVED)
sign lights. A beep occurs and the (TIMER) lamp lights on the indoor unit.
Example:The device will turn off at 11:00p.m.
The setting of turn-off time is now complete.
Ð51Ð
HOW TO SET THE SLEEP TIMER
Set the current time at first 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 ndication
Sleep Timer
SleepTimer:
The device will continue working for the desired 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
T MER lamp lights with a beep from the indoor unit. When the sleep
timer has been set, the display indicates the turn-off time.
Example: f you set 3 hours sleep time
at 11:38 p.m., the turn-off time is
2:38 a.m.
H
AM
SLEEP
Start
Sleep
timer The device will be turned off by the sleep timer
and turned on by on-timer.
1
Set the ON-timer.
2
Press the (SLEEP) button and set the sleep timer.
For heating:
n this case, the device will turn off in 2
hours (at 1:38 a.m.) and it will be turned
on at 6:00 next morning.
H
AM
AM
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 (T MER) lamp turns off on the indoor
unit.
1 hour 2 hours 3 hours 7 hours
Sleep timer off
ENGLISH
DJUSTING THE IR DEFLECTORS
1. NON DUCT
Adjustment of the conditioned air in the upward and
downward directions.
According to ÒDehumidifyingÓ or ÒCoolingÓ operation, the
horizontal air deflector is automatically set to the proper angle
suitable for each operation.The deflector can be swung up
and down and also set to the desired angle using the
Ò(AUTO SW NG)Ó button. ( f the angle of the deflector is
changed, it will not return to the auto-set position after
operations start unless the operation mode is switched.)
¥ fthe Ò (AUTO SW NG)Ó button is pressed once,
the horizontal air deflector swings up and down. f
the button is pressed again, the deflector stops in its
current position.
¥ Use the horizontal air deflector within the adjusting
range shown on the right.
¥ When the auto swing operation is performed, if the
horizontal air deflector is moved manually, the swing
range may drift. However, it will return to the original
operation range after a short time.
2. FULL DUCT ¥ SEMI DUCT
¥Asshown in the diagram, perform by holding the horizontal air deflector.
¥ When adjusting the air direction, use a stepladder, etc.
¥For full duct type and semi duct type, auto air deflector is not provided.
C UTION
¥When operating the unit in cooling operation with the air deflector facing down and moving
automatically for a long period of time, water will condensed on the air deflector and drips down
occasionally. This will wet your furniture.
About 65¡
MODEL : R D-25QH4, R D-40QH4
Ð51Ð
HOW TO SET THE SLEEP TIMER
Set the current time at first 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 ndication
Sleep Timer
SleepTimer:
The device will continue working for the desired 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
T MER lamp lights with a beep from the indoor unit. When the sleep
timer has been set, the display indicates the turn-off time.
Example: f you set 3 hours sleep time
at 11:38 p.m., the turn-off time is
2:38 a.m.
H
AM
SLEEP
Start
Sleep
timer The device will be turned off by the sleep timer
and turned on by on-timer.
1
Set the ON-timer.
2
Press the (SLEEP) button and set the sleep timer.
For heating:
n this case, the device will turn off in 2
hours (at 1:38 a.m.) and it will be turned
on at 6:00 next morning.
H
AM
AM
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 (T MER) lamp turns off on the indoor
unit.
1 hour 2 hours 3 hours 7 hours
Sleep timer off
ENGLISH
DJUSTING THE IR DEFLECTORS
1. NON DUCT
Adjustment of the conditioned air in the upward and
downward directions.
According to ÒDehumidifyingÓ or ÒCoolingÓ operation, the
horizontal air deflector is automatically set to the proper angle
suitable for each operation.The deflector can be swung up
and down and also set to the desired angle using the
Ò(AUTO SW NG)Ó button. ( f the angle of the deflector is
changed, it will not return to the auto-set position after
operations start unless the operation mode is switched.)
¥ fthe Ò (AUTO SW NG)Ó button is pressed once,
the horizontal air deflector swings up and down. f
the button is pressed again, the deflector stops in its
current position.
¥ Use the horizontal air deflector within the adjusting
range shown on the right.
¥ When the auto swing operation is performed, if the
horizontal air deflector is moved manually, the swing
range may drift. However, it will return to the original
operation range after a short time.
2. FULL DUCT ¥ SEMI DUCT
¥Asshown in the diagram, perform by holding the horizontal air deflector.
¥ When adjusting the air direction, use a stepladder, etc.
¥For full duct type and semi duct type, auto air deflector is not provided.
C UTION
¥When operating the unit in cooling operation with the air deflector facing down and moving
automatically for a long period of time, water will condensed on the air deflector and drips down
occasionally. This will wet your furniture.
About 65¡
MODEL : R D-25QH4, R D-40QH4
Ð52Ð
Install the new batteries.
The direction of the batteries should match the marks in
the case.
Remove the cover as shown in the figure and remove
the old batteries.
HOW TO CHANGE THE BATTERIES IN THE REMOTE CONTROLLER
2
CAUTION
1. Do not mix new and old batteries, or different t pe of
batteries together.
2. Remove the batteries when ou do not use the remote
controller for 2 or 3 months.
1
Push and pull to
the direction of
arrow mark
▲
.
Cover
TEMPORARY SWITCH
Use the temporar switch when operation cannot be done with
the remote controller.
1. B pressing the temporar switch, the operation is done in
previousl set operation mode.
When the operation is done using the temporar switch after
the power source is turned off and turned on again, the operation
is done in automatic mode.
2. When the operation is stopped or when the operation is done
with the remote controller again. Press the temporar switch
once again.
TEMPORARY
SWITCH
CIRCUIT BREAKER
When ou do not use the room air conditioner, set the circuit breaker to ÒOFFÓ.
HOW TO USE THE AIR CONDITIONER EFFECTIVELY
1. An average r m temperature setting is pr bably the best f r y u as well as being
ec n mical.
¥ Excessive cooling or heating is not recommended for health reasons.High electricit
bills ma also result.
¥ Close the curtains or blinds to prevent heat from flowing into or escaping the room as
well as to make more effective use of electricit .
2. At intervals, the d rs and wind ws sh uld be pened t let fresh air in.
CAUTION
Make sure the room is ventilated when operating the air conditioner
at the same time as other heating appliances.
3. Using the timer is rec mmended bef re g ing t sleep r g ing ut.
4. The f ll wing must never be used f r cleaning the ind r and utd r 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. D n t bl ck the air intake and air utlet.
¥Donot block the air outlets and intakes of the indoor and outdoor units with curtains
or other obstacles which could degrade air conditioner performance and cause unit
failure.
ENGLISH
1. AIR FILTER
Clean the air filter, as it removes dust inside the room.
Be sure to clean the filter once ever two weeks so as not to consume
electricit unnecessaril .
PROCEDURE
MAINTENANCE
Remove suction grille before removing filter.
¥Lift up one side of suction grille and remove b inclining it
(refer to diagram).
¥ Press claw downward to remove filter.
1
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 dr in the shade.
2
Install the filters.
Slightl lift the suction grille and close as original state.
3
CAUTION
¥Donot wash with hot water at more than 40¡C. The filter ma shrink.
¥When washing it, shake off moisture completel and dr it in the shade; do not expose it directl to the sun.
The filter ma shrink.
¥Donot operate the air conditioner with the filter removed. Dust ma enter the air conditioner and cause
trouble.
2. CLEANING OF SUCTION GRILLE
¥Wipe it with a soft dr cloth.
¥When it is excessivel dirt , wipe with soft cloth soaked in lukewarm water or neutral detergent.Then wipe
thoroughl with a soft dr cloth.
CAUTION
¥Never clean with hot water (above 40¡C), benzine, gasoline, acid, thinner or a
brush, because it will damage the plastic surface and the coating.
3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
¥Running the unit setting the operation mode to (FAN) and the fan speed
to HI for about half a da on a fine da , and dr the whole of the unit.
¥Turn off the circuit breaker.
Air blow
Suction grille
Suction grille
Lift up suction grille
Claw
Filter
B
E
N
Z
I
N
E
T
H
I
N
N
E
R
A
C
I
D
WARNING
¥ Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker.
CAUTION
¥Donot expose the unit to water as it ma cause an electric shock.
¥ For cleaning inside the air conditioner, consult our sales agent.
¥Avoid using detergent when cleaning the heat exchanger of the indoor unit. Unit failure ma result.
¥ When cleaning the heat exchanger with a vacuum cleaner, make sure to wear gloves so as not to injure our
hands on the heat exchanger fins.
Ð52Ð
Install the new batteries.
The direction of the batteries should match the marks in
the case.
Remove the cover as shown in the figure and remove
the old batteries.
HOW TO CHANGE THE BATTERIES IN THE REMOTE CONTROLLER
2
CAUTION
1. Do not mix new and old batteries, or different t pe of
batteries together.
2. Remove the batteries when ou do not use the remote
controller for 2 or 3 months.
1
Push and pull to
the direction of
arrow mark
▲
.
Cover
TEMPORARY SWITCH
Use the temporar switch when operation cannot be done with
the remote controller.
1. B pressing the temporar switch, the operation is done in
previousl set operation mode.
When the operation is done using the temporar switch after
the power source is turned off and turned on again, the operation
is done in automatic mode.
2. When the operation is stopped or when the operation is done
with the remote controller again. Press the temporar switch
once again.
TEMPORARY
SWITCH
CIRCUIT BREAKER
When ou do not use the room air conditioner, set the circuit breaker to ÒOFFÓ.
HOW TO USE THE AIR CONDITIONER EFFECTIVELY
1. An average r m temperature setting is pr bably the best f r y u as well as being
ec n mical.
¥ Excessive cooling or heating is not recommended for health reasons. High electricit
bills ma also result.
¥ Close the curtains or blinds to prevent heat from flowing into or escaping the room as
well as to make more effective use of electricit .
2. At intervals, the d rs and wind ws sh uld be pened t let fresh air in.
CAUTION
Make sure the room is ventilated when operating the air conditioner
at the same time as other heating appliances.
3. Using the timer is rec mmended bef re g ing t sleep r g ing ut.
4. The f ll wing must never be used f r cleaning the ind r and utd r 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. D n t bl ck the air intake and air utlet.
¥Donot block the air outlets and intakes of the indoor and outdoor units with curtains
or other obstacles which could degrade air conditioner performance and cause unit
failure.
ENGLISH
1. AIR FILTER
Clean the air filter, as it removes dust inside the room.
Be sure to clean the filter once ever two weeks so as not to consume
electricit unnecessaril .
PROCEDURE
MAINTENANCE
Remove suction grille before removing filter.
¥Lift up one side of suction grille and remove b inclining it
(refer to diagram).
¥ Press claw downward to remove filter.
1
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 dr in the shade.
2
Install the filters.
Slightl lift the suction grille and close as original state.
3
CAUTION
¥Donot wash with hot water at more than 40¡C. The filter ma shrink.
¥When washing it, shake off moisture completel and dr it in the shade; do not expose it directl to the sun.
The filter ma shrink.
¥Donot operate the air conditioner with the filter removed. Dust ma enter the air conditioner and cause
trouble.
2. CLEANING OF SUCTION GRILLE
¥Wipe it with a soft dr cloth.
¥When it is excessivel dirt , wipe with soft cloth soaked in lukewarm water or neutral detergent.Then wipe
thoroughl with a soft dr cloth.
CAUTION
¥Never clean with hot water (above 40¡C), benzine, gasoline, acid, thinner or a
brush, because it will damage the plastic surface and the coating.
3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
¥Running the unit setting the operation mode to (FAN) and the fan speed
to HI for about half a da on a fine da , and dr the whole of the unit.
¥Turn off the circuit breaker.
Air blow
Suction grille
Suction grille
Lift up suction grille
Claw
Filter
B
E
N
Z
I
N
E
T
H
I
N
N
E
R
A
C
I
D
WARNING
¥ Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker.
CAUTION
¥Donot expose the unit to water as it ma cause an electric shock.
¥ For cleaning inside the air conditioner, consult our sales agent.
¥Avoid using detergent when cleaning the heat exchanger of the indoor unit. Unit failure ma result.
¥ When cleaning the heat exchanger with a vacuum cleaner, make sure to wear gloves so as not to injure our
hands on the heat exchanger fins.
Ð53Ð
¥ This room air conditioner utilizes a heat pump system that absorbs
exterior heat and brings it into a room to be heated. As the ambient
temperature gets lower, heating capability will also lower. In such a
situation,thePA andinverter work to increase compressor rpm to keep
the unitÕs heating capability from decreasing. If the unitÕs heating
performance is still unsatisfactory, other heating appliances should be
used to augment this unitÕs performance.
¥ The air conditioner is designed to heat an entire room so that it may take some time before you feel warm. Timer
operation is recommended for effective preheating ahead of the desired time.
¥Ifthe heat present in a room exceeds the unitÕs cooling capacity (for example, if there are many people in the room
or other heating appliances are used), the preset room temperature may not be reached.
!
"
Do not use a stove
or any other high-
temperature devices
in proximity to the
indoor unit. PROHIBITION
¥ When fan speed, room temperature are set with the remote controller before starting manual operation and
the buttons are released, the indication of settings will go off in 10 seconds and only the operation mode will
be displayed.
¥ Pressing the button while the unit is in operation will let the protective circuit work so that the unit will not
operate for approximately 3 minutes.
¥Ifyou feel cold wind during warming operation with the (HI) fan speed or want to make the unit operation
quieter after the room is heated, use of (AUTO) setting is recommended.
¥ With the (LOW) setting, the unitÕs cooling capability will lower slightly.
# " "
¥ When the timer has been programmed, the unit will not operate even if the set time is reached unless the unit
receives a signal from the remote controller. Confirm that timer programming is complete (beep) and the
TI ER lamp of the indoor unit lights.
¥Ifthe (SLEEP) button is pressed while the ON/OFF timer is programmed, the sleep timer takes priority.
¥ During sleep timer operation, the fan speed sets to (LOW) regardless of the preset speed. The remote
controller display indication will remain unchanged even with the (LOW) setting.
! $ !!$% !
This manual suits for next models
5
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