Mitsubishi Heavy Industries SKM20ZG-S User manual

AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS
16-5, 2-Chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
Fax: [phone]
MITSUBISHI HEAVY INDUSTRIES EUROPE, LTD.
AIR-CONDITIONER DIVISION
3rd Floor Thavies Inn House 3-4 Holborn Circus London EC1N 2HA, ENGLAND
Phone: [phone]
Fax: [phone]
USER’S MANUAL
AIR-CONDITIONER
RWA012A246
SKM20ZG-S
SKM22ZG-S
SKM25ZG-S
SKM28ZG-S
SKM35ZG-S
SKM50ZG-S
SKM60ZG-S
SKM71ZG-S
MANUEL DE L’UTILISATEUR
CLIMATISEUR
ANWENDERHANDBUCH
KLIMAGERA
¨T
ISTRUZIONI PER L’USO
CONDIZIONATORE D’ARIA
MANUAL DEL PROPIETARIO
ACONDICIONADOR DE AIRE
GEBRUIKERSHANDLEIDING
AIRCONDITIONING
MANUAL DO UTILIZADOR
APARELHO DE AR CONDICIONADO
√¢∏°π∂™ Ã∏™∏™
∫§πª∞∆π™∆π∫√
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
КОНДИЦИОНЕР ВОЗДУХА
KULLANIM KILAVUZU
SPL‹T KL‹MA
ENGLISH
DEUTSCH
ITALIANO
ESPAN
˜OL
NEDERLANDS
PORTUGUÊS
∂§§∏¡π∫∞
РУССКИЙ
TÜRKÇE
FRANÇAIS
This air conditioner complies with EMC Directive 89/336/EEC, LV
Directive 73/23/EEC.
Ce climatiseur est conforme à la Directive EMC: 89/336/EEC, LV
Directive 73/23/EEC.
Dieses Kimagerät erfüllt die EMC Direktiven 89/336/EEC, LV
Direktiven 73/23/EEC.
Questo condizionatore d’aria è conforme alla Direttiva EMC: 89/
336/EEC, LV Direttiva 73/23/EEC.
Deze airconditioner voldoet aan EMC Directive 89/336/EEC, LV
Directive 73/23/EEC.
Este acondicionador de aire cumple con la directiva EMC: 89/
336/EEC, LV Directiva 73/23/EEC.
Este aparelho de ar condicionado está em conformidade com a
Directiva EMC 88/336/CEE e a Directiva LV 72/23/CEE.
∞˘Ùfi ÙÔ ÎÏÈÌ·ÙÈÛÙÈÎfi Â›Ó·È Û‡ÌʈÓÔ Ì ÙÈ ÚԉȷÁڷʤ ÙË
√‰ËÁ›· EMC 88/396 Î·È ÙË √‰ËÁ›· LV 73/23 ÙË ∂√∫.
RWA012A246_Cover.p65 06.9.1, 13:331
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http://splitoff.ru/tehn-doc.html
, ,  , .

–1–
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.
An alternative refrigerant (R410A) is used in this air-conditioner. When asking the
dealer for service or inspection and maintenance, explain the dealer about this matter.
contents
Safety precautions......................................................................................................................... 2
Name of each part and its function ............................................................................................... 4
Operation and indication section for remote control .................................................................... 6
Present time setting procedure ...................................................................................................... 6
AUTO mode operation procedure ................................................................................................ 7
Temperature adjustment during AUTO ........................................................................................ 7
About FAN SPEED ...................................................................................................................... 7
COOL/HEAT/DRY/FAN mode operation procedure .................................................................. 8
Air-conditioner operating conditions............................................................................................8
Characteristics of HEAT mode operation .................................................................................... 8
Air flow direction adjustment procedure ...................................................................................... 9
3D AUTO operation procedure .................................................................................................... 9
SLEEP operation procedure .......................................................................................................10
OFF-TIMER operation procedure .............................................................................................. 10
ON-TIMER operation procedure................................................................................................ 11
SLEEP operation + ON-TIMER operation procedure ............................................................... 11
PROGRAM TIMER operation procedure .................................................................................. 12
HIGH POWER/ECONOMY operation procedure ..................................................................... 13
Concerning CLEAN operation ................................................................................................... 14
Emergency run operation............................................................................................................ 14
Installation location setting......................................................................................................... 15
Power blackout auto restart function .......................................................................................... 15
Remote control handling procedure ........................................................................................... 16
When the operation fails with the remote control ...................................................................... 16
Operating hints ........................................................................................................................... 16
Maintenance................................................................................................................................ 17
Has the unit been installed correctly? ......................................................................................... 19
Troubleshooting .......................................................................................................................... 19
Please remember! ....................................................................................................................... 20
When to contact your distributor without delay ......................................................................... 21
About the Multiple Air-conditioner............................................................................................ 21
Self diagnosis function ............................................................................................................... 22
ENGLISH
RWA012A246_En.p65 06.9.22, 7:31 PM1

–2–
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 “ DANGER” and “ CAUTION”. Precautions as shown in the column “ DANGER” indicate that
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:
•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.
Strictly prohibited Provide positive earthing
Observe instructions with
great care
❚INSTALLATION PRECAUTIONS
DANGER
❚OPERATION PRECAUTIONS
DANGER
Make sure that the system has been properly earthed.
Depending on the place of installation, a circuit breaker may
be necessary.
Do not install near places where inflammable gas may leak.
Make sure that you drain the hose properly, so that all the
water has dripped out.
The system is meant for domestic, residential etc. use. The system must be installed by your dealer or a qualified pro-
fessional.
If used in inferior environments, such as an engineering
workplace, the equipment may function poorly.
It is not advisable to install the system yourself, as faulty
handling may cause leakage of water, electric shock or fire.
Gas leaks may cause fire. If you don’t fit a circuit breaker, you may cause an electric
shock.
Negligence may cause flooding in the room resulting in wet
furniture.
Earth cables should never be connected to a gas pipe, municipal
water pipe, lightning conductor or telephone earth cable. Incor-
rect installation of the earth cable may produce an electric shock.
Do not expose yourself to the cooling
air for prolonged periods.
Store the remote control out of reach
of infants.
Don’t swing from the system.
Only use approved fuses.
CAUTION
Do not handle the switches with wet
hands.
Do not insert anything into the air inlet.
This could affect your physical condi-
tion and cause health problems.
This may cause injury, as the inter-
nal fan rotates at high speed.
Failure to observe this may result in
the batteries being swallowed or
other accidents.
Use of steel or copper wire instead of
an approved fuse is strictly forbidden,
as it may cause a breakdown or fire.
This may cause an electric shock. If the system falls down,
you may get injured.
CAUTION
Do not wash the air-conditioner with wa-
ter.
You should not expose any combus-
tion appliance directly to the air
stream of the air-conditioner.
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 appliance may then work inad-
equately.
This could cause an electric shock.
RWA012A246_En.p65 06.9.22, 7:32 PM2

–3–
Safety precautions
CAUTION
❚PRECAUTIONS FOR TRANSFER OR REPAIRS
DANGER
Stand firmly on a stepladder or other
stable object when removing the inlet
panel and filters.
Do not place objects near the outdoor
unit or allow leaves to gather around
the unit.
Do not place anything containing wa-
ter, like vases, on top of the unit.
The system should only be used for its original purpose
and not for anything else like, for instance, preservation of
food, plants or animals, precision devices or works of art.
Do not install the system at a place
where the air stream of the blower is
aimed directly at plants or animals.
Do not sit on the outdoor unit nor put
anything on it.
After a long period of use, check the unit's
support structure from time to time.
Do not touch the aluminum fins on the
air heat exchanger.
If you operate the system together
with a combustion appliance, you
must regularly ventilate the indoor air.
When you clean the system, stop the
unit and turn off the power switch.
Do not place household electrical appli-
ances or household items beneath the
indoor or outdoor units.
Contact your dealer to clean inside
the indoor unit, do not attempt to do
so yourself.
Stop the unit and turn off power if you
hear thunder or there is a danger of
lightning.
The system is only intended for use in
ordinary domestic rooms. Any other
use of the system may damage the
quality of food, etc.
Water entering the unit could dam-
age the insulation and therefore
cause an electric shock.
This will damage their health.
If the unit falls down or things drop
off it, people could get hurt.
If you don't repair any damage
straightaway, the unit may fall
down and cause personal injury.
Failure to observe this may result in
injury.
Condensation falling from the unit
can stain objects and cause accidents
or electrical shock.
Insufficient ventilation may cause
accidents due to oxygen deficiency.
Failure to observe this may result in
injury through insecure objects top-
pling over.
Never clean the unit while the internal
fan is rotating. If there are objects or leaves around
the outdoor unit, small animals
may enter unit and contact electri-
cal parts resulting in break down,
emission of smoke or flame.
The use of a non-approved detergent
or improper washing method can
damage the unit’s plastic compo-
nents and cause leaks. Damage,
smoke, or fire can also result if the
detergent comes in contact with
electrical parts or the unit’s motor.
Electrical storms can damage the unit.
Consult your dealer for repairs to the
system.
If you notice anything abnormal (smell of
burning, etc.), stop the system, turn off the
power switch and consult your dealer.
If the air-conditioner is moved else-
where, contact your dealer or a pro-
fessional fitter.
If the air-conditioner fails to cool or warm, it may have a refrigerant leak. Contact
your dealer.
If refrigerant needs to be added, check with your dealer for proper instructions.
Wrong repairs could cause an electric
shock, fire, etc.
Faulty installation may cause water
leakage, electric shock, fire, etc.
Continued use of the system in ab-
normal circumstances may result in
malfunctioning, electric shock, fire,
etc.
The refrigerant used in your air-conditioner is safe. However, if refrigerant unexpectedly leaks
from the unit onto a fan heater, stove, hotplate or other heat source, harmful products could be
released.
RWA012A246_En.p65 06.9.22, 7:32 PM3

–4–
Name of each part and its function
INDOOR UNIT
Air filter
Removes dust or dirt from the inlet air.
Page 17
Air Inlet panel
Draws in the indoor air.
Drain hose
Drains water from the dehumidified air.
Left/right air flow adjustment louver
Page 9
Up/down air flow direction adjustment flap
Page 9
Air outlet
Air blows out of here.
Unit operation switch
Room temperature detector
Air-cleaning filter
Refrigerant piping connection electric flex
SKM28ZG-S
SKM35ZG-S
SKM50ZG-S
SKM20ZG-S
SKM22ZG-S
SKM25ZG-S
Air filter
Removes dust or dirt from the inlet air.
Page 17
Drain hose
Drains water from the dehumidified air.
Left/right air flow adjustment louver
Page 9
Up/down air flow direction adjustment flap
Page 9
Air outlet
Air blows out of here.
Unit operation switch
Room temperature detector
Air-cleaning filter
Refrigerant piping connection electric flex
Air inlet panel
Draws in the indoor air.
SKM60ZG-S
SKM71ZG-S
RWA012A246_En.p65 06.9.22, 7:32 PM4

–5–
RUN TIMER
ON / OFF
HI POWER 3D AUTO
SKM25ZG-S
SKM28ZG-S
SKM20ZG-S
SKM22ZG-S
SKM60ZG-S
SKM71ZG-S
SCM80ZG-SSCM48ZG-S
SCM60ZG-S
SCM40ZG-S
SCM45ZG-S
SKM35ZG-S
SKM50ZG-S
Unit indication section
3D AUTO light (green)
Illuminates during 3D AUTO operation.
HI POWER light (green)
Illuminates during HIGH POWER operation.
TIMER light (yellow)
Illuminates during TIMER operation.
In emergencies, this button can be used for turning on/off the unit
when remote control is not available.
Page 14
Remote control signal receiver
Unit ON/OFF button
TIMER light (yellow)
Illuminates during TIMER operation.
Air inlet
(on side & rear surface)
Air outlet
Remote control signal receiver
3D AUTO light (green)
Illuminates during 3D AUTO operation.
HI POWER light (green)
Illuminates during HIGH POWER operation.
RUN (HOT KEEP) light (green)
•Illuminates during operation.
•Blinks at air flow stop due to the ‘HOT KEEP’
and ‘CLEAN operation’.
Page 20
HOT KEEP
CLEAN operation
ON
OFF
ON
OFF
1.5 sec.
1 sec.
0.5 sec.
3 sec.
RUN (HOT KEEP) light (green)
•Illuminates during operation.
•Blinks at air flow stop due to the ‘HOT KEEP’
and ‘CLEAN operation’.
Page 20
HOT KEEP
CLEAN operation
ON
OFF
ON
OFF
1.5 sec.
1 sec.
0.5 sec.
3 sec.
OUTDOOR UNIT
RWA012A246_En.p65 06.9.22, 7:32 PM5

–6–
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.
NOTE
2
Present time setting procedure
■When inserting the batteries, the present time is automatically set to time setting mode.
Example: Set to 10:30.
Press the ACL switch.
Press with the tip of a ballpoint pen, etc.
The time indicator blinks and can be set to the current time.
Press the “or ”button.
(Set to 10:30)
Press the ON/OFF button.
The indication changes from blinking to steady lighting and the setting is complete.
•The timer operation is set on the basis of the present time, so please set it cor-
rectly.
•The remote control data is reset when the present time is set.
1
3Press within
60 sec.!
RWA012A246_En.p65 06.9.22, 7:33 PM6

–7–
AUTO HI MED LO
NOTE
•Air is not blowing out during the op-
eration.
Page 20
•Simultaneous automatic operation.
Page 21
•When the included clean filter is in-
stalled the air conditioner will clean
the air during automatic operation.
•When changing FAN SPEED from HI to LO, the sound of
refrigerant flowing may be heard.
NOTE
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.
AUTO mode operation procedure
■ Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on.
Air flow direction adjustment
procedure. Page 9
1
When a change in temperature is desired.
Press the or button.
•If you don’t want the AUTO mode program, change to
COOL, HEAT, DRY or FAN instead of AUTO.
Page 8
AUTO mode can be
operated by simply
pressing the ON/OFF
button.
To stop: Press the ON/OFF button.
■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.
■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.
When the unit is not in AUTO mode:
Press MODE button.
Move the [ mark] to the (Auto) position.
Aim the remote control at the air-conditioner.
Press the ON/OFF button.
1
2
When it is a little cold
Press the button.
When it is a little hot
Press the button.
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
About FAN SPEED
Press the FAN SPEED button.
Move the [ mark] to the desirable fan speed position.
■You can choose the capacity of your air-conditioner when heating,
cooling or fan.
RWA012A246_En.p65 06.9.22, 7:33 PM7

–8–
NOTE
•
Air is not blown out during the operation.
Page 20
•The air-conditioners cannot be in different
operating modes at the same time, such as
one unit being in the “Cool” mode and one
unit being in the “Heat” mode.
COOL/HEAT/DRY/FAN mode operation procedure
Air flow direction adjustment procedure. Page 9
Program changing procedure
Set the new program.
•The operation program can also be set or changed when
the air-conditioner is not in operation.
Aim the remote control at the air-conditioner.
Press the MODE select button.
Move the [ mark] to the desirable operation position.
(Cool), (Heat), (Dry), (Fan)
Press the ON/OFF button.
Press the TEMP button.
Press or button for the desired temperature.
Standard
4
3
To stop: Press the ON/OFF button.
2
1
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.
Characteristics of HEAT mode operation
Mechanism and capacity of HEAT mode operation
■Mechanism
Defrosting
If the outside temperature becomes low and humidity is high, the heat exchanger in the outdoor unit may frost over, which prevents efficient heating.
If this happens, the automatic defroster is activated and during defrosting the heating operation stops for 5 to 10 minutes.
•Both indoor and outdoor fans stop and the RUN light (green) blinks slowly (1.5 sec. ON, 0.5 sec. OFF) during defrosting.
•The outdoor unit may give off some steam during defrosting. This is to help the defrosting process and is not a defect.
•The HEAT operation resumes as soon as defrosting has been completed.
Press the FAN SPEED button
Set the fan speed as desired.
Heating operationCooling operation
Outside temperature
Inside temperature
Inside humidity
•The unit draws in heat from the cold outside air, transfers it indoors and heats the room. The heating capacity of the heat pump mechanism decreases
when the outside air temperature gets colder.
•The hot air circulation system takes a while before warming up the room temperature.
•If the outside temperature becomes extremely low, it would be better to use an additional source of heating.
•If heating operation is performed when the outside temperature is high, room temperature may become higher than the set temperature.
Approximately -15 to 24 °C
Approximately 15 to 30 °C
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.
Approximately -15 to 43 °C
Approximately 18 to 32 °C
RWA012A246_En.p65 06.10.13, 2:44 PM8

–9–
Air flow direction adjustment procedure
Adjusting air flow direction
■Up/down direction can be adjusted with the AIRFLOW (UP/DOWN) button on the remote control. Each time when you press this button
the mode changes as follows:
Change to AIRFLOW (UP/DOWN) mode.
■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.
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.
DANGER
•Avoid constant airflow to the body for hours on end.
CAUTION
•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.
HEAT
(Horizontal
blowing)
(Slant forward
blowing)
COOL, DRY
•Recommended angle of the flap when stopping
•When heating operation starts, the cold air outlet is blocked, so the flap and louver move to the horizontal / center position, and resume the position that was set
after the warm air output begins.
•When the compressor stops because the room temperature is higher than the temperature setting and it is in DEFROSTING operation, the flap and louvers will be
in the horizontal / center position.
•The air flow direction cannot be set in the instances above. Change the air flow direction settings after the warm air starts flowing and it moves to the airflow
direction that had been set.
(Swing)
(Flap stopped)
(Louver stopped)
(Swing)
NOTE
RWA012A246_En.p65 06.9.25, 4:55 PM9

–10 –
•The present time is not displayed during OFF-TIMER operation.
•Unlike SLEEP operation, automatic temperature adjustment is impossible during
OFF-TIMER operation.
■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:
Example: You wish it to stop after 7 hours.
Set to
The timer light (yellow) is on.
h
•The unit stops at the end of the set period of time.
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 or too warm
during heating. Page 12
No indication
(cancelled)
... (Units of one hour)
Press the SLEEP button.
1
Releasing procedure
Press the CANCEL button to turn off the SLEEP indicator.
Changing of set time
Set to a new time by using SLEEP button.
•
Cannot be set at the same time as OFF-TIMER.
NOTE
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.
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
...
(Units of ten minutes) 1:00 1:10
Each time the button is pressed, the indicator is switched in the order of:
0:00 23:50 23:40
...
(Units of ten minutes) 23:00 22:50
Set at 22:30.
3
1
4Press the OFF TIMER button.
The indication changes from blinking to steady lighting and the setting is complete.
The timer light (yellow) is on.
h
•The unit stops at the end of the set period of time.
2
Press within
60 sec.!
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
Changing of set time
Set a new time by using the OFF TIMER button.
NOTE
RWA012A246_En.p65 06.9.22, 7:35 PM10

–11 –
ON-TIMER operation procedure
1
2
Releasing procedure
Press the CANCEL button to turn off the timer
indicator.
Example: In the case you wish to bring the temperature to nearly set temperature in at 8:00.
Press the ON-TIMER button.
ON TIMER indicator is blinking.
3
■ Operation starts 5 to 60 minutes before the time that is set so that the room temperature reaches the optimum temperature at that time. Page 12
ON-TIMER operation can be set regardless of whether the air-conditioner is running or not.
SLEEP operation + ON-TIMER operation procedure
■Combined timer operation of SLEEP operation and ON TIMER.
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 10.
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.
h
•After the SLEEP operation set time has elapsed, the operation stops, and it
starts from 5 to 60 minutes before the ON TIMER’s time.
•The timer light is not lit at the ON TIMER’s time.
Changing of set time
Set a new time by using the SLEEP or ON TIMER button.
Releasing procedure
Press the CANCEL button to turn off the timer indicator.
Press the “or ”button.
Each time the button is pressed, the indicator is switched in the order of:
0:00 0:10 0:20
...
(Units of ten minutes) 1:00 1:10
Each time the button is pressed, the indicator is switched in the order of:
0:00 23:50 23:40
...
(Units of ten minutes) 23:00 22:50
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.
h
•Operation starts 5 to 60 minutes before the set time.
•The TIMER light goes out at the set time.
Changing of set time
•
The present time is not displayed during ON-TIMER operation.
NOTE
Press within
60 sec.!
Set a new time by using the ON-TIMER button.
RWA012A246_En.p65 06.9.22, 7:35 PM11

–12–
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 10. Set to
■ON TIMER operation setting
Set by the procedures on page 11. 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)
Releasing procedure
Changing of set time
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 tempera-
ture at that time, the operation
starts 5 to 60 minutes before the
timer is at ON.
•The Amenity facility only func-
tions for COOL and HEAT op-
eration mode (including AUTO).
It does not work for DRY mode.
About SLEEP operation
In COOL operation
(Stop) Operation starts
▼
Check the room
temp. 60 mins.
in advance.
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
or too warm during heating.
•During cooling : 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.
•During heating: Preset temperature is lowered by 1°C at the start of SLEEP
operation (when the timer is set). After that the temperature is lowered by
1°C every 30 minutes to become 3°C lower in an hour and 6°C lower in two
hours.
(Operation)
Set temperature
Set a new time by using the OFF TIMER or ON TIMER button.
Press the CANCEL button to turn off the timer indicator.
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–13–
HIGH POWER/ECONOMY operation procedure
2
If the air-conditioner is not operating, aim the remote control at the air-conditioner.
Press the ON/OFF button.
Press the HI POWER/ECONO button.
•When the operating mode is AUTO, COOL or HEAT
Each time the HI POWER/ECONO button is pressed, the indicator is switched
in the order of:
No indication
•When the operating mode is DRY, FAN or PROGRAM TIMER
Each time the HI POWER/ECONO button is pressed, the indicator is switched
in the order of:
No indication
1
( HIGH POWER )( ECONOMY ) (Normal operation)
(
ECONOMY ) (Normal operation)
Concerning HIGH POWER operation
Pressing the HI POWER/ECONO button intensifies the operating power and initiates powerful cooling or heating operation for 15 minutes
continuously. The remote control indicates but the FAN SPEED indication is erased.
•During the HIGH POWER operation, the room temperature is not
controlled. When it causes an excessive cooling or heating,press
the HI POWER/ECONO button once more to cancel the HIGH
POWER operation.
•HIGH POWER operation is not available during the DRY, the
program timer and 3D AUTO operations.
•During ON timer operation, HIGH POWER operation will start
when the ON time is reached.
•When the following operations are conducted HIGH POWER op-
eration will be canceled.
1When the HI POWER/ECONO button is pressed again.
2When the operation mode is changed.
3When it has been 15 min. since HIGH POWER operation
has started.
4When the 3D AUTO button is pressed.
Concerning ECONOMY operation
Pressing the HI POWER/ECONO button intlates a soft operation with the power suppressed in order to avoid an excessive cooling or heating. The
unit operates 1.5°C higher than the setting temperature for weak wind capacity during cooling or 2.5°C lower than that during heating. The remote
control indicates but the FAN SPEED indication is eraseed.
NOTE
NOTE
•It will go into ECONOMY operation the next time the air-condi-
tioner runs in the following instances.
1When the air-conditioner is stopped using the ON/OFF but-
ton.
2When the air-conditioner is stopped in SLEEP or OFF TIMER
operation.
3When CLEAN operation ends.
•ECONOMY operation is not available during 3D AUTO operation.
•When the following operations are conducted ECONOMY opera-
tion will be canceled.
1When the HI POWER/ECONO button is pressed again.
2When the operation mode is changed DRY to FAN.
3When the 3D AUTO button is pressed.
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–14 –
NOTE
Concerning CLEAN operation
1Press the CLEAN switch with the tip of a ballpoint pen.
Each time the CLEAN switch is pressed, the indicator is switched
in the order of:
No indication
■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.
(CLEAN on) (CLEAN off)
To stop: Press the ON/OFF button.
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
•Do not hold the Unit ON/OFF button down for more than 5 seconds.
(Holding it down longer than 5 seconds sets the automatic cooling used during servicing or when moving the air-conditioner.)
NOTE
•CLEAN operation is impossible after HEAT and FAN, OFF-TIMER and SLEEP
operations have stopped.
•The indoor unit fan runs for about two hours in CLEAN operation.
•The RUN light blinks during CLEAN operation.
•Pressing the SLEEP button during CLEAN operation, cancels the CLEAN
operation and the unit then sets itself to SLEEP operation.
•This is not a function for removing mold, germs or grime that have already
adhered to the unit.
SKM28ZG-S
SKM35ZG-S
SKM50ZG-S
SKM20ZG-S
SKM22ZG-S
SKM25ZG-S
SKM60ZG-S
SKM71ZG-S
Unit ON/OFF button
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–15 –
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:
1Timer settings
2HIGH 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 occurs, the timer setting is cancelled. Once power is resumed, reset the timer.
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–16 –
Operating hints
■Please observe the following for the most economic and comfortable use of your unit.
Set a suitable room temperature.
Excessively high or low temperatures are not
good for your health and waste electricity.
Avoid direct sunlight and draught.
Cut out direct sunlight by drawing the cur-
tains or blinds when cooling. Keep windows
and doors shut, except when ventilating.
Operate the unit only when needed.
Use the timer properly to operate the unit
only when needed.
Clean the filters frequently.
Clogged filters may block the air flow and
cause less efficient operation.
Adjust the airflow direction properly.
Adjust the up/down and left/right airflow to
ensure a steady room temperature.
Generate little heat when cooling.
Keep heat sources out of the room as much as
possible.
•Are the batteries running down?
“Replacing the batteries”above.
Replace the batteries with new ones and repeat the operation.
Warning note for remote control handling
When the operation fails with the remote control
•If the operation still fails, handle as per emergency
run operation.
Contact your dealer.
Page 14
Strictly prohibited
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.
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.
•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.
Remove back lid and take out
old batteries.
Insert new batteries.
R03 (AAA, Micro) x2
Close back lid.
■When the indicator shows any abnormal condition, Press the reset switch
with the tip of a ballpoint pen.
1
2
3
Attention to
the ,and .
marks
Press the reset switch with the
tip of a ballpoint pen.
The timer setting mode is indicated.
Page 6
4
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.
•Don’t drop the remote control.
Handle with care.
•Don’t go near high temperature
places, such as an electric carpet
or stove.
•Do not place heavy objects on the
remote control, or step on it.
•Don’t put any obstructing obsta-
cles between the remote control
and the unit.
•Don’t spill water etc on the remote
control.
•Don’t leave the remote control ex-
posed to direct sunlight or other
strong lighting.
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–17 –
How to open the air inlet panel
Push both sides evenly and press further lightly at the center.
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.
Secure the upper edge of the air inlet panel by lightly pushing it in, and then
close the 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.
Removal, installation of air inlet panel
How to close the air inlet panel
Turn off the power switch.
Remove the air filter
1Pull up to this side the air inlet panel.
2
Lightly hold the knobs at both sides and
lift a little to remove the panel to this
side.
Maintenance
Cleaning the air filter Standard interval is once every two week
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.
•Don’t spill water.
•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.
Cleaning
If the filter is very dirty, clean it with warm water
(approx. 30°C), and dry it thoroughly.
CAUTION
•Don’t clean the filters with boiling water.
•Don’t dry them over an open flame.
•Pull them out gently.
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.
1
2
3
Before maintenance During the operational season
Reinstall the air filter
•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 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.
Wipe the unit with a soft,
dry cloth.
There's a danger
of electric shock.
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–18 –
Item Feature Color
Stop the unit and turn off the power switch.
The unit uses appr. 2W even when the power switch has been turned
off during the off-season for safety or for saving energy.
At the beginning of the season
Ensure that nothing has snapped and that the
earthed flex is not disconnected.
Make certain that there are no obstacles blocking the
air flow around the air intake and outlet openings of
the indoor and outdoor units.
NOTE Cooling/heating 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.
1
2
Remove batteries from the remote control.
Clean both the indoor and outdoor units.
Clean and reinstall the air filters.
Perform the fan operation for a half day.
Dry the inside of the unit.
3
4
5
Check the installation base for corrosion or rust.
Insert batteries in the remote control.
Turn on the power switch.
Ensure that the air filters are clean.
1
2
3
4
5
6
Installing, inspecting, and replacing the air-cleaning filter
Filter
Filter holder
For replacement the air-cleaning filter, contact your dealer.
Sources of odors on the filter are broken up, resulting in a
deodorizing effect.
Photocatalytic washable
deodorizing filter Orange
InstallInstall
At the end of the season
By using the work of enzyme, mold and bacteria on the filter
are destroyed and the room air is kept clean.
Natural enzyme filter Green
1. Open the air inlet panel and remove the air filters.
2. Remove the filter holders, with the air-cleaning filter installed in the folders, from the air-
conditioner.
3. Remove the photocatalytic washable deodorizing filter from the filter holder and inspect
the filter. Periodically, remove any dust or dirt from the photocatalytic washable deodoriz-
ing 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.
Remove the natural enzyme filter from the filter holder and inspect the filter. Use a vacuum
cleaner to remove any dust or dirt from the natural enzyme filter. Replace the natural en-
zyme filter if it cannot be cleaned or if it has been used 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.)
(Do not dispose of the filter holders. They are reused. )
4. Install the air-cleaning filter in the filter holders, and then install the filter holders in the
air-conditioner.
5. Install the air filters and closed the air inlet panel.
NOTE
The natural enzyme filter and the photocatalytic washable
deodorizing filter may be installed on either the right or left side of
the air-conditioner.
CAUTION
Do not expose natural enzyme filters to direct sunlight for an extended period. The bacteriolytic
effect will be lost.
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–19 –
Has the unit been installed correctly?
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 air-
conditioner 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.
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.
The air-conditioner does not work at all.
Has the timer been set in the
“ON”position?
Has the power switch been
turned off?
Is there a power failure or a
blown fuse?
Troubleshooting
Please carry out the following checks before making a service call.
Poor cooling
Poor cooling or heating
Did you leave any doors or
windows open?
Have you set the thermostat at a
suitable temperature?
Is there a heat source in the
room?
Are there too many people in
the room?
Is the air filter clean? (Not
clogged?)
suitable
temperature
Is there any direct sunlight en-
tering the room?
An alternative refrigerant (R410A) is used in this air-conditioner. When asking the
dealer for service or inspection and maintenance, explain the dealer about this matter.
If the air-conditioner does not oper-
ate 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.
RWA012A246_En.p65 06.9.22, 7:38 PM19