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RKW012A217
ENGLISH
USER’S MANUAL
AIR-CONDITIONER
SRK52CF-BP
SRK71CF-BP
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Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES, LTD. Air-Conditioner. To
get the best long-lasting performance, read and follow this User’s Manual carefully before
using your air-conditioner. After reading, please store the Manual in a safe place and refer
to it for operational questions or in the event of any irregularities.
This air-conditioner is intended for domestic use.
contents
Safety precautions......................................................................................................................... 2
Choice of operations and features ................................................................................................ 4
Name of each part and its function ............................................................................................... 5
Operation and indication section for remote control .................................................................... 7
AUTO mode operation procedure ................................................................................................ 8
Temperature adjustment during AUTO ........................................................................................ 8
About FAN SPEED ...................................................................................................................... 8
COOL/DRY/FAN mode operation procedure .............................................................................. 9
Air-conditioner operating conditions............................................................................................9
Air flow direction adjustment procedure .................................................................................... 10
SLEEP operation procedure .......................................................................................................11
OFF-TIMER operation procedure .............................................................................................. 11
ON-TIMER operation procedure................................................................................................ 12
SLEEP operation + ON-TIMER operation procedure ............................................................... 12
PROGRAM TIMER operation procedure .................................................................................. 13
Present time setting procedure .................................................................................................... 13
HIGH POWER/ECONOMY operation procedure ..................................................................... 14
Concerning CLEAN operation ................................................................................................... 15
Emergency run operation............................................................................................................ 15
Power blackout auto restart function .......................................................................................... 15
Remote control handling procedure ........................................................................................... 16
When the operation fails with the remote control ...................................................................... 16
Operating hints ........................................................................................................................... 17
Maintenance................................................................................................................................ 17
Has the unit been installed correctly? ......................................................................................... 19
Troubleshooting .......................................................................................................................... 19
Please remember! ....................................................................................................................... 20
When to contact your distributor without delay ......................................................................... 21
Self diagnosis function ............................................................................................................... 21
ENGLISH
Specifications ............................................................................................................................. 22
–1–
Page 3
Safety precautions
• Before starting to use the system, please read these “Safety precautions” carefully to ensure proper operation of the system.
• The safety precautions are classified as “
improper handling could have dramatic consequences like death, serious injury, etc. Nevertheless, even precautions as shown in the column
CAUTION” might pose a serious problem, depending on the circumstances. Please observe these precautions with great care, since they are
“
essential to your safety.
• Symbols which appear frequently in the text have the following meaning:
DANGER” and “ CAUTION”. Precautions as shown in the column “ DANGER” indicate that
Strictly prohibited Provide positive earthing
• When you have read the instruction manual, please keep it near at hand for consultation. If someone else takes over as operator, make certain that the
manual is also passed on to the new operator.
Observe instructions with
great care
❚ INSTALLATION PRECAUTIONS
DANGER
The system is meant for domestic, residential etc. use.
If used in inferior environments, such as an engineering workplace, the equipment
may function poorly.
Do not install near places where inflammable gas may leak.
LPG
Gas leaks may cause fire.
Make sure that you drain the hose properly, so that all the
water has dripped out.
The system must be installed by your dealer or a qualified professional.
It is not advisable to install the system yourself, as faulty handling may cause leakage of water, electric shock or fire.
CAUTION
Depending on the place of installation, a circuit breaker may
be necessary.
If you don’t fit a circuit breaker, you may cause an electric shock.
Make sure that the system has been properly earthed.
Negligence may cause flooding in the room resulting in wet furniture.
❚ OPERATION PRECAUTIONS
Do not expose yourself to the cooling
air for prolonged periods.
This could affect your physical condition and cause
health problems.
Only use approved fuses.
Use of steel or copper wire instead of an approved
fuse is strictly forbidden, as it may cause a breakdown
or fire.
Do not insert anything into the air inlet.
This may cause injury, as the internal fan rotates at
high speed.
Do not handle the switches with wet
hands.
This may cause an electric shock.
Earth cables should never be connected to a gas pipe, municipal water pipe, lightning conductor or telephone earth cable. Incorrect installation of the earth cable
may produce an electric shock.
DANGER
Store the remote control out of reach
of infants.
Failure to observe this may result in the batteries
being swallowed or other accidents.
CAUTION
Don’t swing from the system.
If the system falls down,
you may get injured.
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Page 4
Safety precautions
CAUTION
Do not place a combustible insecticide
or paint spray near the blower, nor aim it
directly at the system.
This may result in a fire.
The system should only be used for its original purpose
and not for anything else like, for instance, preservation of
You should not expose any combustion appliance directly to the air
stream of the air-conditioner.
The appliance may then work inadequately.
Do not place anything containing water, like vases, on top of the unit.
food, plants or animals, precision devices or works of art.
The system is only intended for use in ordinary domestic rooms.
Any other use of the system may damage the quality of food, etc.
Do not sit on the outdoor unit nor put
anything on it.
Water entering the unit could damage the insulation and therefore cause an electric shock.
After a long period of use, check the unit's
support structure from time to time.
Do not wash the air-conditioner with water.
This could cause an electric shock.
Do not install the system at a place
where the air stream of the blower is
aimed directly at plants or animals.
This will damage their health.
Do not touch the aluminum fins on the
air heat exchanger.
If the unit falls down or things drop off it, people
could get hurt.
If you operate the system together with
a combustion appliance, you must regularly ventilate the indoor air.
Insufficient ventilation may cause accidents due to
oxygen deficiency.
If you don't repair any damage straightaway, the
unit may fall down and cause personal injury.
Stand firmly on a stepladder or other
stable object when removing the inlet
panel and filters.
Failure to observe this may result in injury through
insecure objects toppling over.
Do not place objects near the outdoor
unit or allow leaves to gather around the
unit.
If there are objects or leaves around the outdoor unit,
small animals may enter unit and contact electrical
parts resulting in break down, emission of smoke or
flame.
❚ PRECAUTIONS FOR TRANSFER OR REPAIRS
DANGER
Consult your dealer for repairs to the
system.
If the air-conditioner is moved elsewhere, contact your dealer or a professional fitter.
Failure to observe this may result in injury.
When you clean the system, stop the
unit and turn off the power switch.
Never clean the unit while the internal fan is rotating.
If you notice anything abnormal (smell of
burning, etc.), stop the system, turn off the
power switch and consult your dealer.
Wrong repairs could cause an electric shock, fire, etc.
Faulty installation may cause water leakage, electric shock, fire, etc.
– 3 –
Continued use of the system in abnormal circumstances may result in malfunctioning, electric shock,
fire, etc.
Page 5
Choice of operations and features
Choice of operations
COOL
Cooling by extracting heat from the room.
Fanning by circulating room air.
Page 9
Page 9
DRY
Drying by extracting damp from the room.
Functioning of microcomputer depends on setting and room temperatures. It dehumidifies while keeping room temperature almost
constant.
AUTOFAN
Automatic selection of operating mode.
Page 9
Page 8
The Auto mode automatically selects the operation
mode (COOL or DRY), depending on the room temperature when switched on.
Features
Amenity facility
When using the timer to switch on, the system should become operational shortly before the set time, depending on the room
temperature so that the desired temperature
should be reached at the set time.
Adjustment of
airflow
Page 13
Page 10
• MULTI-DIRECTIONAL AIR FLOW
This function sets the unit at the most suitable angle
for blowing, imitating a natural breeze.
• SWING FLAP
Flap moves up and down continuously.
• SWING LOUVER
Louver moves left and right continuously.
• MEMORY FLAP (FLAP OR LOUVER STOPPED)
Once the flap or louver position has been set, the unit
will memorise it and continue in the same position
the next time.
TIMER procedure
There are three timers, for SLEEP, ON and
OFF. They can be set as desired.
Page 11, 12
HIGH POWER mode
Turning up the power operates the air conditioner in the power cooling mode.
ECONOMY mode
This is an economic level of operation.
Page 14
Page 14
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Page 6
Name of each part and its function
INDOOR UNIT
SRK52CF-BN
SRK71CF-BN
SRK52CF-BP
SRK71CF-BP
Air inlet panel
Draws in the indoor air.
Unit indication section and remote control signal receiver
Wireless remote control
Air filter
Removes dust or dirt from the inlet air.
Page 17
Photocatalytic washable deodorizing filter
Natural enzyme filter
Room temperature detector
Unit operation switch
OUTDOOR UNIT
SRC52CF-BN
SRC71CF-BN
SRC52CF-BP
SRC71CF-BP
Air inlet
(on side & rear surface)
Air outlet
Air blows out of here.
Left/right air flow adjustment louver
Page 10
Up/down air flow direction adjustment flap
Page 10
Drain hose
Drains water from the dehumidified air.
Refrigerant piping connection electric flex
Accessories
Wireless remote control
Wireless remote
control holder
Battery (R03(AAA,Micro)×2)
Wood screw (Quantity:2)
(for remote control holder mounting)
* The appearance varies for Models 52 and 71.
Air outlet
– 5 –
Natural enzyme filter
(green)
Photocatalytic washable deodoriz-
ing filter (orange)
Page 7
Unit indication section
HI POWER light (green)
Illuminates during HIGH POWER operation.
RUN light (green)
• Illuminates during operation.
• Blinks at the ‘CLEAN operation’.
3 sec.
CLEAN operation
ON
OFF
1 sec.
Page 15
ECONO light (orange)
Illuminates during ECONOMY operation.
How to open the air inlet panel
Place fingers at the recesses on both sides of the panel and pull up the panel
to this side so that it will be opened by about 60 degrees.
How to close the air inlet panel
Push both sides evenly and press further lightly at the center.
TIMER light (yellow)
Illuminates during TIMER operation.
Unit ON/OFF button
In emergencies, this button can be used for turning on/off the unit when re-
mote control is not available.
Page 15
Unit ON/OFF button
Removal, installation of air inlet panel
When removing the air inlet panel for internal cleaning or others, open the
panel by 80 degrees and then pull it to this side.
Secure either the upper or lower edge of the air inlet panel by lightly pushing it
in, and then close the panel.
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Page 8
Operation and indication section for remote control
Operation section
FAN SPEED button
Each time the button is pushed, the indicator is switched over in turn.
HI POWER/ECONO button
This button changes the HIGH POWER/
ECONOMY mode.
Page 14
TEMPERATURE button
This button sets the room temperature.
(This button changes the present time and
TIMER time.)
SLEEP button
This button changes to SLEEP operation.
Page 11
CLEAN switch
This switch changes the CLEAN mode.
Page 15
ON TIMER button
This button selects ON TIMER operation.
Page 12
• The above illustration shows all controls, but in practice
only the relevant parts are shown.
OPERATION MODE select button
Each time the button is pushed, the indicator is switched over in turn.
ON/OFF (luminous) button
Press for starting operation, press again for
stopping.
AIR FLOW (UP/DOWN) button
This button changes the air flow (up/down) mode.
Page 10
AIR FLOW (LEFT/RIGHT) button
This button changes the air flow (left/right) mode.
Page 10
CANCEL button
This button cancels the ON timer, OFF
timer, and SLEEP operation.
OFF TIMER button
This button selects OFF TIMER operation.
Page 11
RESET switch
Switch for resetting microcomputer.
Page 16
TIME SET UP switch
This switch for setting the time.
Page 13
Indication section
SLEEP indicator
Indicates during SLEEP operation.
TEMPERATURE indicator
Indicates set temperature.
(Does not indicate temperature when operation
mode is on AUTO)
FAN SPEED indicator
Indicates set air flow rate with lamp.
CLEAN indicator
Indicates during CLEAN operation.
ON/OFF TIMER indicator
Indicates during ON/OFF TIMER operation.
OPERATION MODE indicator
Indicates selected operation with lamp.
[ (Auto) • (Cool) • (Fan) • (Dry)]
TIME indicator
Indicates present time or timer setting time.
AIR FLOW indicator
Shows selected flap and louver mode.
HI POWER/ECONO MODE indicator
Indicates during HIGH
mode operation.
POWER/ECONOMY
Transmission procedure
When each button on the remote control is pressed – with the remote control pointing towards the air-conditioner unit – a signal is transmitted.
When the air-conditioner receives the signal correctly, it will beep.
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Page 9
AUTO mode operation procedure
■
Automatically selects the operation mode (COOL, DRY) depending on the room temperature when switched on.
When the unit is not in AUTO mode:
Air flow direction adjustment
procedure.
Page 10
1
Press MODE button.
Move the [ mark] to the (Auto) position.
Aim the remote control at the air-conditioner.
Press the ON/OFF button.
2
NOTE
• Air is not blown out during the operation.
Page 20
To stop: Press the ON/OFF button.
AUTO mode can be
operated by simply
pressing the ON/OFF
button.
• If you don’t want the AUTO mode program, change to
COOL, DRY or FAN instead of AUTO.
Page 9
Temperature adjustment during AUTO
■
Air temperature adjustment is possible even during automatic operation. There are 6 levels of adjustment possible with the button or the button.
When a change in temperature is desired.
Press the or button.
1
When it is a little cold
Press the
■ Each time the
–6 → –5 → ............ –1 → ± 0 → +1 ............ +6.
When +6 is indicated, even if the button is pressed, the indicator does not change.
When it is a little hot
Press the
■ Each time the button is pressed, the switch over occurs in the following order
+6 → +5 → ............ +1 → ±0 → –1 ............ –6.
When –6 is indicated, even if the button is pressed, the indicator does not change.
About FAN SPEED
■ You can choose the capacity of your air-conditioner when cooling or fan.
Operation capacity by your choice FAN SPEED
Set automatically by microcomputer AUTO
Powerful operation with high capacity HI
Standard operation MED
Energy-saving operation LO
button.
button is pressed, the switch over occurs in the following order
button.
Press the FAN SPEED button.
Move the [ mark] to the desirable fan speed position.
AUTO HI MED LO
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Page 10
COOL/DRY/FAN mode operation procedure
COOL
FAN
DRY
26°C~28°C ——21°C~24°C
Aim the remote control at the air-conditioner.
Air flow direction adjustment procedure. Page 10
NOTE
• Air is not blown out during the operation.
Page 20
1
2
3
4
Press the MODE select button.
Move the [ mark] to the desirable operation position.
(Cool), (Fan), (Dry)
Press the ON/OFF button.
Press the TEMP button.
Press or button for the desired temperature.
Standard
Press the FAN SPEED button
Set the fan speed as desired.
To stop: Press the ON/OFF button.
Program changing procedure
Set the new program.
• The operation program can also be set or changed when
the air-conditioner is not in operation.
Air-conditioner operating conditions
■ Use within the following operational range. Operating outside of this range may result in the protection devices being activated, preventing the
unit from working.
Cooling operation
Outside temperature Approximately 21 to 54 °C
Inside temperature Approximately 21 to 32 °C
Inside humidity
Below approximately 80%
The long-term use of the unit with a humidity level exceeding 80% may result in condensation forming on the surface
of the indoor unit, leading to water drips.
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Page 11
Air flow direction adjustment procedure
Adjusting air flow direction
■ Up/down direction can be adjusted with the AIRFLOW
the mode changes as follows:
Change to AIRFLOW (UP/DOWN) mode.
(UP/DOWN) button on the remote control. Each time when you press this button
(Flap stopped)
■ Left/right direction can be adjusted with the AIRFLOW (LEFT/RIGHT) button on the remote control. Each time when you press this
button the mode changes as follows:
Change to AIRFLOW (LEFT/RIGHT) mode.
(Louver stopped)
(Swing)
Multi-directional Air Flow (up/down air scroll and left/right air scroll)
■ Activating both up/down air swing and left/right air swing at the same time results in a multi-directional air flow.
(Swing)
Up/down air scroll Left/right air scroll
In COOL, DRY and FAN operation
Stops at this position
for 5 seconds.
In COOL, DRY and FAN operation
Thick line : moves quickly
Thin line
: moves slowly
MEMORY FLAP (FLAP OR LOUVER STOPPED)
When you press the AIRFLOW (UP/DOWN or LEFT/RIGHT) button once while the flap or louver is
operating, it stops swinging at an angle.Since this angle is memorized in the microcomputer, the flap or
louver will automatically be set at this angle when the next operation is started.
• Avoid constant airflow to the body for hours on end.
• When in COOL or DRY operation, do not operate for hours on end with the air
flow blowing straight down. Otherwise, condensation may appear on the outlet
grill and drip down.
• Do not try to adjust the flaps and louvers by hand, as the control angle may
change or the flap or louver may not close properly.
DANGER
CAUTION
Left louver Right louver
• Recommended angle of the flap when stopping
COOL, DRY
(Horizontal
blowing)
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Page 12
SLEEP operation procedure
■ The unit stops automatically at the end of the set period of time.
The room temperature is automatically controlled when the set time lapses, so that the room does not become too cold during cooling.
Page 13
Press the SLEEP button.
1
■ If this is pressed while the unit is off
SLEEP operation starts with the previous operation settings, and the air conditioning is
turned off after the time that has been set passes.
■ If this is pressed while the unit is running
Each time the button is pressed, the indication changes as follows:
...
(Units of one hour)
No indication
(cancelled)
Example: You wish it to stop after 7 hours.
Set to
The timer light (yellow) is on.
h
1
• The unit stops at the end of the set period of time.
Changing of set time
Set to a new time by using SLEEP button.
Releasing procedure
Press the CANCEL button to turn off the SLEEP indicator.
OFF-TIMER operation procedure
■
The unit stops automatically at the end of the set period of time. If it is stopped, perform the operations starting with STEP 1 and if running start with STEP 2.
Example: You wish it to stop 22:30.
1
2
3
Press the ON/OFF button.
Press the OFF TIMER button.
OFF TIMER indicator is blinking.
Press the “ or ” button.
Each time the button is pressed, the indicator is switched in the order of:
0:00 0:10 0:20
Each time the button is pressed, the indicator is switched in the order of:
0:00 23:50 23:40
...
...
23:00 22:50
1:00 1:10
(Units of ten minutes)
(Units of ten minutes)
Changing of set time
Set a new time by using the OFF TIMER button.
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
4
Set at 22:30.
Press within
Press the OFF TIMER button.
The indication changes from blinking to steady lighting and the setting is complete.
The timer light (yellow) is on.
• The unit stops at the end of the set period of time.
– 11 –
h
60 sec.!
Page 13
ON-TIMER operation procedure
■
Operation starts 5 to 60 minutes before the time that is set so that the room temperature reaches the optimum temperature at that time.
ON-TIMER operation can be set regardless of whether the air-conditioner is running or not.
Example: In the case you wish to bring the temperature to nearly set temperature in at 8:00.
Page 13
Changing of set time
Set a new time by using the ON-TIMER button.
1
2
3
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
Press the ON-TIMER button.
ON TIMER indicator is blinking.
Press the “
Each time the button is pressed, the indicator is switched in the order of:
0:00 0:10 0:20
Each time the button is pressed, the indicator is switched in the order of:
0:00 23:50 23:40
Set at 8:00.
Press the ON TIMER button.
The indication changes from blinking to steady lighting and the setting is complete.
The timer light (yellow) is on.
• Operation starts 5 to 60 minutes before the set time.
• The TIMER light goes out at the set time.
or ” button.
...
...
h
1:00 1:10
23:00 22:50
(Units of ten minutes)
(Units of ten minutes)
Press within
60 sec.!
SLEEP operation + ON-TIMER operation procedure
■ Combined timer operation of SLEEP operation and ON TIMER.
Changing of set time
Set a new time by using the SLEEP or ON TIMER button.
Example: When it is desired to stop after 3 hours and then start operation at 8:00, near
the set temperature.
■ SLEEP operation setting
Set by the procedures on page 11.
Set to
■ ON TIMER operation setting
Set by the above mentioned ON TIMER operation procedure.
Set to
The setting of the lighting of the timer light (yellow) of this unit is complete.
• After the SLEEP operation set time has elapsed, the operation stops, and it
starts form 5 to 60 minutes before the ON TIMER’s time.
• The timer light is not lit at the ON TIMER’s time.
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
h
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Page 14
PROGRAM TIMER operation procedure
■ The timer operations that consist of the combination of the timer being set at both on and off. Once this has been set and operations started,
operations will commence and end at the same time every day as long as the ON/OFF button is not pressed.
Example: When it is desired to stop at 22:30, and then start operation at 8:00, near the set
temperature.
■ OFF TIMER operation setting
Set by the procedures on page 11. Set to
■ ON TIMER operation setting
Set by the procedures on page 12. Set to
The setting of the lighting of the timer light (yellow) of this unit is complete.
The time will be displayed on the remote control unit. The display will change
depending on the operational status.
(Stopped) (Operating)
Changing of set time
Set a new time by using the OFF TIMER or ON TIMER button.
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
About Amenity facilities
Amenity facilities enable to start the operation a little earlier, so that the room
should approach optimum temperature at ON time when the operation is
started by ON-TIMER.
• Mechanism
The room temperature is checked
60 minutes before the timer is at
ON. Depending on the temperature at that time, the operation
starts 5 to 60 minutes before the
timer is at ON.
• The Amenity facility only functions for COOL operation mode
(including AUTO). It does not
work for DRY mode.
In COOL operation
▼
(Stop) Operation starts
Set temperature
Check the room
temp. 60 mins.
in advance.
▼
(Operation)
Set time
When SLEEP operation is selected, the room temperature is automatically
controlled after a while, ensuring that the room is not too cold during cooling.
• During COOL : the preset temperature is lowered by 1°C at the start of
SLEEP operation (when the timer is set). After that, the temperature goes
up by 1°C every an hour to become 2°C higher.
Present time setting procedure
■ When inserting the batteries, the present time is automatically set to 13:00.
Example: Set to 10:30.
1
2
Press the TIME SET UP switch.
Press with the tip of a ball pen, etc.
The time indicator blinks and can be set to the current time.
Press the “ or ” button.
(Set to 10:30)
About SLEEP operation
Press within
3
The timer operation is set on the basis of the present time, so please set it correctly.
Press the TIME SET UP switch.
The indication changes from blinking to steady lighting and the setting is complete.
NOTE
60 sec.!
– 13 –
Page 15
HIGH POWER/ECONOMY operation procedure
If the air-conditioner is not operating, aim the remote control at the air-conditioner.
1
2
Concerning
Pressing the HI POWER/ECONO button intensifies the operating power and initiates powerful cooling operation for 15 minutes continuously. The
remote control
• During the HIGH POWER operation, the room temperature is not
controlled. When it causes an excessive cooling, press the HI
POWER/ECONO button once more to cancel the HIGH POWER
operation.
• HIGH POWER operation is not available during the DRY and the
PROGRAM TIMER operations.
• During ON timer operation, HIGH POWER operation will start
when the ON time is reached.
NOTE
HIGH POWER
indicates but the FAN SPEED indication is erased.
operation
Press the ON/OFF button.
Press the HI POWER/ECONO button.
• When the operating mode is AUTO or COOL
Each time the HI POWER/ECONO button is pressed, the indicator is switched
in the order of:
(
HIGH POWER
• When the operating mode is DRY or PROGRAM TIMER
Each time the HI POWER/ECONO button is pressed, the indicator is switched
in the order of:
ECONOMY
(
• When the following operations are conducted HIGH POWER operation will be canceled.
1 When the HI POWER/ECONO button is pressed again.
2 When the operation mode is changed.
3 When it has been 15 min. since HIGH POWER operation
has started.
)(
ECONOMY
) (Normal operation)
) (Normal operation)
Concerning
Pressing the HI POWER/ECONO button intlates a soft operation with the power suppressed in order to avoid an excessive cooling. The unit
operates 1.5°C higher than the setting temperature for weak wind capacity during cooling. The remote control
indication is eraseed.
• It will go into ECONOMY operation the next time the air-conditioner runs in the following instances.
1
2
3 When CLEAN operation ends.
ECONOMY
NOTE
When the air-conditioner is stopped using the ON/OFF button.
When the air-conditioner is stopped in SLEEP or OFF
TIMER operation.
operation
indicates but the FAN SPEED
• When the following operations are conducted ECONOMY operation will be canceled.
1 When the HI POWER/ECONO button is pressed again.
2 When the operation mode is changed DRY to FAN.
– 14 –
Page 16
Concerning CLEAN operation
■ CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moisture from inside the indoor unit and control the growth
of mold and bacteria.
Press the CLEAN switch with the tip of a ballpoint pen.
1
• CLEAN operation is impossible after Fan and OFF-TIMER have stopped.
• The indoor unit fan runs for about two hours in CLEAN operation.
• The RUN light flashes during CLEAN operation.
Each time the CLEAN switch is pressed, the indicator is switched
in the order of:
(CLEAN on) (CLEAN off)
To stop: Press the ON/OFF button.
NOTE
No indication
Emergency run operation
• The unit ON/OFF button on the unit operates ON/OFF temporarily when the remote control is not used.
Operation program
• OPERATION MODE : AUTO
• FAN SPEED : AUTO
• AIR FLOW : AUTO
• Operation starts by pressing the unit ON/OFF button; it stops if you press
the button again.
Unit ON/OFF button
Power blackout auto restart function
■ What is power blackout auto restart function?
• Power blackout auto restart function is a function that records the operational status of the air-conditioner immediately prior to it being switched off
by a power cut, and then automatically resumes operations at that point after the power has been restored.
• The following settings will be cancelled:
1 Timer settings
2 HIGH POWER operations
NOTE
• The power blackout auto restart function is set at on when the air-conditioner is shipped from the factory. Consult with your dealer if this
function needs to be switched off.
• When power failure ocurrs, the timer setting is cancelled. Once power is resumed, reset the timer.
– 15 –
Page 17
Remote control handling procedure
Replacing the batteries
The following cases signify exhausted batteries. Replace old batteries with new ones.
• Receiving beep is not emitted when a signal is transmitted.
• Indicator fades away.
Remove back lid and take out
1
old batteries.
Insert new batteries.
2
(R03(AAA,Micro)X2)
Attention to
the , and .
marks
NOTE
• Don't use old and new batteries together.
• Remove the batteries when the remote control is not used for a
long period.
• The life of a battery conforming to JIS or IEC should be 6 to 12
months with normal use. If used longer, or when an unspecified
battery is used, liquid may leak from the battery, causing the remote control to malfunction.
Close back lid.
3
Press the reset switch with the
4
tip of a ballpoint pen.
When the indicator shows any abnormal condition, Press the reset switch
with the tip of a ballpoint pen.
• On the battery is printed its expected life. This may be shorter
than that of the air-conditioner, depending on the date of manufacture.
• However, the battery may still be in working order after expiry
of its nominal life.
Using the remote control holder
The remote control can be attached to a
wall or pillar by using a remote control
holder. Before installing the remote control, check that the air-conditioner receives the signals properly.
For installing or removing the remote
control, move it up or down in the holder.
Warning note for remote control handling
• Don’t go near high temperature
places, such as an electric carpet
or stove.
• Don’t put any obstructing obsta-
cles between the remote control
and the unit.
• Don’t leave the remote control ex-
posed to direct sunlight or other
strong lighting.
• Don’t spill water etc on the remote
control.
• Don’t drop the remote control.
Handle with care.
• Do not place heavy objects on the
remote control, or step on it.
When the operation fails with the remote control
• Are the batteries running down?
"Replacing the batteries" above.
Replace the batteries with new ones and repeat the operation.
• If the operation still fails, handle as per emergency
run operation.
Contact your dealer.
Page 15
– 16 –
Page 18
Operating hints
■ Please observe the following for the most economic and comfortable use of your unit.
Set a suitable room temperature.
suitable
temperature
Excessively low temperatures are not good
for your health and waste electricity.
Adjust the airflow direction properly.
Adjust the up/down and left/right airflow to
ensure a steady room temperature.
Clean the filters frequently.
Clogged filters may block the air flow and
cause less efficient operation.
Operate the unit only when needed.
Use the timer properly to operate the unit
only when needed.
Avoid direct sunlight and draught.
Cut out direct sunlight by drawing the curtains or blinds when cooling. Keep windows
and doors shut, except when ventilating.
Generate little heat when cooling.
Keep heat sources out of the room as much as
possible.
Maintenance
Before maintenance During the operational season
Turn off the power switch.
• Don’t spill water.
There's a danger
of electric shock.
Wipe the unit with a soft,
dry cloth.
• Do not touch the aluminum fins on the heat
exchanger.
Stand firmly on a stepladder or other stable
•
object when removing the inlet panel and filter.
Don’t use the following articles:
• Hot water (40°C or more)
It may deform or discolour the unit.
• Petrol, paint thinner, benzine or polishing agents,
etc.
They may deform or scratch the unit.
Cleaning the air filter Standard interval is once every two week
Remove the air filter
1
1 Pull up to this side the air inlet panel.
Lightly hold the knobs at both sides and
2
lift a little to remove the panel to this
side.
Cleaning
2
If the filter is very dirty, clean it with warm water
(approx. 30°C), and dry it thoroughly.
• Don’t clean the filters with boiling water.
• Don’t dry them over an open flame.
• Pull them out gently.
Reinstall the air filter
3
• Holding firmly the filter at both sides as shown at right
and insert securely.
• Operating without putting back the air filters will make
the unit dusty, and may cause damage.
Cleaning the unit
• Wipe the unit with a soft, dry cloth, or use a vacuum cleaner.
• If the unit is very dirty, wipe it with a cloth soaked in warm water.
Cleaning the air inlet panel
• Removal, installation of air inlet panel .
• The panel can be washed with water. After washing with
water, wipe any moisture off the panel and dry out of
direct sunlight.
CAUTION
Page 6
– 17 –
Page 19
NOTE
Cooling is affected by an air filter clogged up with dust etc., and the operation noise becomes louder. It may also use extra
electricity. Please clean the air filter at appropriate intervals.
At the end of the season
Perform the fan operation for a half day.
1
Dry the inside of the unit.
Stop the unit and turn off the power switch.
2
The unit uses appr. 2W even when the power switch has been turned
off during the off-season for safety or for saving energy.
Clean and reinstall the air filters.
3
Clean both the indoor and outdoor units.
4
Remove batteries from the remote control.
5
At the beginning of the season
Make certain that there are no obstacles blocking the
1
air flow around the air intake and outlet openings of
the indoor and outdoor units.
Check the installation base for corrosion or rust.
2
Ensure that nothing has snapped and that the
earthed flex is not disconnected.
3
Ensure that the air filters are clean.
4
Turn on the power switch.
5
Insert batteries in the remote control.
6
Installing, inspecting, and replacing the natural enzyme filter and the photocatalytic washable deodorizing filter
1. Open the air inlet panel and remove the air filters.
2. Remove the filter holders, with the natural enzyme filter and the photocatalytic washable
deodorizing filter installed in the folders, from the air-conditioner.
3. Remove the natural enzyme filter from filter holder and inspect the filter. Use a vacuum
cleaner to remove any dust or dirt from the natural enzyme filter. Replace the natural enzyme
filter if it cannot be cleaned or if it has been for about 1 year.
(The natural enzyme filter should be replaced after about 1 year of use. However, the actual
replacement period may vary depending on the conditions in which the filter is used.)
Remove the photocatalytic washable deodorizing filter from the filter holder and inspect the
filter. Periodically, remove any dust or dirt from the photocatalytic washable deodorizing
filter. If the photocatalytic washable deodorizing filter is particularly dirt, it may be washed
with water. However, the filter is fragile so be sure to wash it installed in the filter holder to
avoid damaging it. After washing the filter, place it in sunlight to dry. Placing the filter in
sunlight revitalizes the deodorizing effect.
(Do not dispose of the filter holders. They are reused. )
4. Install the natural enzyme filter and the photocatalytic washable deodorizing filter in the filter
holders, and then install the filter holders in the air-conditioner.
NOTE
Filter
Filter holder
InstallInstall
The natural enzyme filter and the photocatalytic washable deodorizing filter may be installed on either the right or left side of the air-conditioner.
5. Install the air filters and closed the air inlet panel.
CAUTION
Do not expose natural enzyme filters to direct sunlight for an extended period. The
bacteriolytic effect will be lost.
For replacement natural enzyme filters and photocatalytic washable deodorizing filters, contact your dealer.
Item Feature Color
Natural enzyme filter
Photocatalytic washable
deodorizing filter
By using the work of oxygen, mold and bacteria on the filter
are destroyed and the room air is kept clean.
Sources of odors on the filter are broken up, resulting in a
deodorizing effect.
Green
Orange
– 18 –
Page 20
Has the unit been installed correctly?
Suitable installation position
• Is there any obstruction in front of the indoor unit, preventing proper ventilation and functioning?
• Don’t install the unit in any of the following places:
• Where there is a danger of leaking inflammable gases.
• Where there is substantial splashing of oil.
• Malfunctioning due to corrosion may occur if the unit is installed in a spa where sulfide gases are generated, or in a seaside resort exposed to
sea breezes. Contact your dealer.
• The air-conditioner and remote control must be at least 1 metre away from a TV set or radio.
• Drain the dehumidified liquid from the indoor unit into a spot that drains well.
Pay attention to operating noises!
• When you install the unit, take care to choose a place that can comfortably stand the weight of the unit and does not increase the operating noise
or vibration. If there is any likelihood that vibration may be transmitted through the house, fix the unit with the aid of vibration-proof pads
between the unit and the fittings.
• Select a place where cold or hot air and operation noises from the indoor and outdoor units do not cause any inconvenience to your neighbours.
• Do not leave any obstacles near the outlet and inlet of the outdoor unit. This may cause malfunctioning and increased operating noise.
• If you hear an irregular noise during operation, contact your dealer.
Inspection and maintenance
Dependent upon service conditions and operating environment, the inside of the air-conditioner may become dirty after a number of seasons'
service (3 to 5 years). This will reduce performance. In addition to normal cleaning, we would recommend inspection and maintenance. (The airconditioner has a longer life without any trouble.)
• Contact your dealer, or any distributor, for inspection and maintenance. (There will be a charge for this service).
• We would recommend inspection and maintenance to be carried out during the off-season.
• If the supply cord of this appliance is damaged, it must only be replaced by a repair shop appointed by the manufacturer, because special
purpose tools are required.
Troubleshooting
Please carry out the following checks before making a service call.
The air-conditioner does not work at all.
Has the power switch been
turned off?
Have you set the thermostat at a
suitable temperature?
suitable
temperature
Is there any direct sunlight entering the room?
Has the timer been set in the
"ON" position?
Poor cooling
Is the air filter clean? (Not
clogged?)
Is there a heat source in the
room?
Is there a power failure or a
blown fuse?
Did you leave any doors or
windows open?
Are there too many people in
the room?
If the air-conditioner does not operate properly after you have checked
the left points, or if any doubt still
exists after you have consulted page
20, or if things happen as shown on
page 21, switch off the power and
contact your dealer.
Is the outdoor heat exchanger
clean? (Not clogged?)
– 19 –
Page 21
Please remember!
You cannot restart the unit immediately after you have
stopped it.
(RUN light is on)
Not
operating?
Air is not blown out when starting the DRY operation.
(RUN light is on)
Some steam escapes during COOL operation.
There is a slight smell.
You hear a slight gurgling sound.
You hear a slight cracking sound.
You hear a hissing or clicking sound.
After a power cut, you cannot re-start, even if power has been restored, unless you have the power blackout auto restart function.
Restarting has been blocked for 3 minutes after you have stopped or
after switching off the power during operation, to protect the unit.
Please wait for
three minutes.
The three-minute protection timer in the microcomputer automatically
starts up again.
The indoor fan may stop to prevent re-evaporation of dehumified
moisture and to save energy.
This may occur if the room's temperature and humidity are very high.
It disappears as soon as the temperature and humidity decrease.
Air blown out during operation may smell. This is caused by tobacco
or cosmetics sticking to the unit.
This is caused by refrigerating liquid moving within the unit.
This is caused by heat expansion or contraction.
This is caused by the operation of the refrigerant control valves or
electric components.
The memory circuit of the microcomputer has been wiped out. Use the
remote control to start the operation again.
Remote control signals are not received.
Moisture may form on the air outlet grilles.
Remote control signals may not be received if the signal receiver on
the air-conditioner is exposed to direct sunlight or other bright light.
If so, cut out the sunlight or reduce the other light.
If the unit is operated for a long time in high humidity, moisture may
form on the air outlet grilles and start dripping.
– 20 –
Page 22
When to contact your distributor without delay
■ Turn off the power switch immediately and inform your dealer in any of the following situations:
The fuse or switch blows continuously.
Fuse often blows.
The cable becomes extremely hot.
The covering of the cable is cracked.
CAUTION
If the power cord becomes damaged, ask your dealer or a qualified engineer to install the
replacement to avoid accidents.
The TV, radio or other equipment
starts to malfunction.
When faulty movement is observed when the ON/OFF button is pressed, even after turning off the power switch and
A switch does not activate properly. You hear a strange noise during opera-
tion.
The RUN and TIMER lights on the unit indication section
blink quickly (0.5 sec. ON; 0.5 sec. OFF) and don’t work.
restarting the operation after 3 minutes, the faulty movement does not disappear.
3 minutes go
by, but, why ...
Self diagnosis function
■ We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows:
TIMER light ON
RUN light
1 time flash
2 time flash
Description of trouble
Heat exchanger sensor error
Room temperature sensor error
Cause
• Broken heat exchanger sensor wire, poor connector
connection
• Broken room temperature sensor wire, poor connector connection
RUN light keeps flashing
RUN light ON
6 time flash
TIMER light
1 time flash
2 time flash
4 time flash Discharge pipe sensor error • Broken discharge pipe sensor wire, poor connector connection.
2 time flash
5 time flash
6 time flash
Indoor fan motor error
Outdoor temperature sensor error • Broken outdoor sensor wire, poor connector connection
Outdoor heat exchanger sensor error
Abnormality of outdoor unit
(Abnormality of high pressure)
Over heat of compressor
Error of signal transmission
• Defective fan motor, poor connector connection
• Broken heat exchanger sensor wire, poor connector connection
• Compressor failure, overload operation
(Clogged heat exchanger, Overload operation)
• Gas shortage, defective discharge pipe sensor, closed control
valve
• Defective power supply, Broken signal wire, defective in/outdoor
unit boards
– 21 –
Page 23
Specifications
Item
Type
Power supply
Performance
Cooling capacity
Cooling power input
Energy efficiency ratio
Rating current
Cooling capacity
Cooling power input
Energy efficiency ratio
ISO-T3(SASO) ISO-T1(JIS)
Rating current
Unit dimension
New wight
Refrigerant
Country of origin
Item
Type
Power supply
Performance
Cooling capacity
Cooling power input
Energy efficiency ratio
Rating current
Cooling capacity
Cooling power input
Energy efficiency ratio
ISO-T3(SASO) ISO-T1(JIS)
Rating current
Unit dimension
New wight
Refrigerant
Country of origin
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Model name
V
kW
kW
Btu/hW
A
kW
kW
Btu/hW
A
mm
mm
Kg
Kg
Kg
Model name
V
kW
kW
Btu/hW
A
kW
kW
Btu/hW
A
mm
mm
Kg
Kg
Kg
SRK52CF-BN(Indoor unit)
SRC52CF-BN(Outdoor unit)
220
5.4
1.76
10.47
8.8
5.0
2.06
8.29
10.3
640 × 850 × 290
46
R22 1.25
SRK52CF-BP(Indoor unit)
SRC52CF-BP(Outdoor unit)
220
5.4
1.76
10.47
8.8
5.0
2.06
8.29
10.3
640 × 850 × 290
46
R22 1.25
SRK71CF-BN(Indoor unit)
SRC71CF-BN(Outdoor unit)
Split type room air-conditioner
1 Phase 220-240V 50Hz
240
5.4
1.91
9.66
8.7
5.0
2.20
7.75
10.1
318 × 1098 × 248
15
Thailand
Split type room air-conditioner
1 Phase 220V 60Hz
318 × 1098 × 248
15
Thailand
220
7.03
2.12
11.33
10.6
6.3
2.48
8.67
12.4
SRK71CF-BP(Indoor unit)
SRC71CF-BP(Outdoor unit)
240
7.03
2.27
10.58
10.4
6.3
2.60
8.26
11.9
750 × 880 × 340
67
R22 1.75
220
7.03
2.12
11.33
10.6
6.3
2.48
8.67
12.4
750 × 880 × 340
67
R22 1.75
Notes (1) The data are measured at the following conditions.
Item
Operation
Cooling
The piping length is 7.5m.
(2) The operation data are applied to the 220/240V districts respectively.
(3) The refrigerant quantity to be charged includes the refrigerant in 7m connecting piping.
(Purging is not required even in the short piping.)
If the piping length is longer, when it is 7 to 25m add 25g refrigerant per meter.
Indoor air temperature
DB
27°C
29°C
WB
19°C
19°C
Outdoor air temperature
DB
35°C
46°C
– 22 –
WB
24°C
24°C
Standards
ISO-T1, JIS C9612
ISO-T3, SASO 385/386
Page 24
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