Mitsubishi Heavy Industries SRK20HG 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
RKX012A014
SRK20HG
SRK28HG
SRK40HG
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
КОНДИЦИОНЕР ВОЗДУХА
KULLANIM KILAVUZU
SPL‹T KL‹MA
ENGLISH
РУССКИЙ
TÜRKÇE
This air conditioner complies with EMC Directive 89/336/EEC, LV
Directive 73/23/EEC.
RKX012A014_Cover.p65 06.9.19, 9:50 AM1

–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.
contents
Safety precautions......................................................................................................................... 2
Name of each part and its function ............................................................................................... 4
Operation and indication section for remote control .................................................................... 5
Present time setting procedure ...................................................................................................... 5
AUTO mode operation procedure ................................................................................................ 6
Temperature adjustment during AUTO ........................................................................................ 6
About FAN SPEED ...................................................................................................................... 6
COOL/HEAT/DRY mode operation procedure ........................................................................... 7
Air-conditioner operating conditions............................................................................................7
Characteristics of HEAT mode operation .................................................................................... 7
Air flow direction adjustment procedure ...................................................................................... 8
SLEEP operation procedure ......................................................................................................... 9
OFF-TIMER operation procedure ................................................................................................ 9
ON-TIMER operation procedure................................................................................................ 10
SLEEP operation + ON-TIMER operation procedure ............................................................... 10
PROGRAM TIMER operation procedure .................................................................................. 11
HIGH POWER/ECONOMY operation procedure ..................................................................... 12
Concerning CLEAN operation ................................................................................................... 13
Emergency run operation............................................................................................................ 13
Power blackout auto restart function .......................................................................................... 13
Remote control handling procedure ........................................................................................... 14
When the operation fails with the remote control ...................................................................... 14
Operating hints ........................................................................................................................... 14
Maintenance................................................................................................................................ 15
Has the unit been installed correctly? ......................................................................................... 17
Troubleshooting .......................................................................................................................... 17
Please remember! ....................................................................................................................... 18
When to contact your distributor without delay ......................................................................... 19
Self diagnosis function ............................................................................................................... 19
ENGLISH
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–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.
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–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.
RKX012A014_En.p65 06.9.19, 9:33 AM3

–4–
RUN TIMER
ON / OFF
HI POWER ECONO
Name of each part and its function
INDOOR UNIT
Air filter
Removes dust or dirt from the inlet air.
Page 15
Air Inlet panel
Draws in the indoor air.
Drain hose
Drains water from the dehumidified air.
Left/right air flow adjustment louver
Page 8
Up/down air flow direction adjustment flap
Page 8
Air outlet
Air blows out of here.
Unit operation switch
Room temperature detector
Air-cleaning filter
Refrigerant piping connection electric flex
ON
OFF
1.5 sec.
0.5 sec.
Unit indication section
ECONO light (orange)
Illuminates during ECONOMY operation.
HI POWER light (green)
Illuminates during HIGH POWER operation.
RUN (HOT KEEP) light (green)
•Illuminates during operation and CLEAN
operation.
•
Blinks at air flow stop due to the ‘HOT KEEP’.
Page 18
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 13
Remote control signal receiver
Unit ON/OFF button
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–5–
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.!
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–6–
AUTO HI MED LO
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 8
1
When a change in temperature is desired.
Press the or button.
•Air is not blowing out during the op-
eration.
Page 18
•If you don’t want the AUTO mode program, change to
COOL, HEAT or DRY instead of AUTO.
Page 7
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.
NOTE
■You can choose the capacity of your air-conditioner when heating or cooling.
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–7–
COOL/HEAT/DRY mode operation procedure
Air flow direction adjustment procedure. Page 8
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)
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.
•
The air is not blown out during the operation.
Page18
NOTE
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.
Outside temperature Approximately 21 to 43 °C Approximately -5 to 21 °C
Inside temperature Approximately 21 to 32 °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.
Characteristics of HEAT mode operation
Mechanism and capacity of HEAT mode operation
■Mechanism
•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.
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.
Cooling operation Heating operation
Inside humidity
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–8–
Air flow direction adjustment procedure
Adjusting air flow direction
■Up/down direction can be adjusted with the AIRFLOW button on the remote control. Each time when you press this button the mode changes
as follows:
Change to AIRFLOW mode.
•When heating operation starts, the cold air outlet is blocked, so the flap move to the horizontal 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 will be in the
horizontal 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)
NOTE
MEMORY FLAP (FLAP STOPPED)
Adjusting left/right air flow direction
CAUTION
Please stop the air conditioner when
adjusting the air flow direction.
When you press the AIRFLOW button once while the flap is operating, it stops swinging at an
angle.Since this angle is memorized in the microcomputer, the flap will automatically be set at this
angle when the next operation is started.
•Recommended angle of the flap when stopping
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 by hand, as the control angle may change or the flap
may not close properly.
HEAT (Horizontal
blowing)
(Slant forward
blowing) COOL, DRY
Adjust the direction by moving the left/right
air flow fin by hand.
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–9–
■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 11
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
•The present time is not displayed during OFF-TIMER operation.
•Unlike SLEEP operation, automatic temperature adjustment is impossible during
OFF-TIMER operation.
RKX012A014_En.p65 06.9.19, 9:34 AM9