Mitsubishi SRK52CF-BN User manual

AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS
16-5, 2-Chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
RKW012A217
ENGLISH
SRK52CF-BN
SRK71CF-BN
USER’S MANUAL
AIR-CONDITIONER
SRK52CF-BP
SRK71CF-BP
RKW012A217_Cover.p65 06.8.4, 8:08 PM1

–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
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
Specifications ............................................................................................................................. 22
ENGLISH
RKW012A217_En.p65 06.8.3, 1:50 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
Do not expose yourself to the cooling
air for prolonged periods.
This could affect your physical condition and cause
health problems.
Make sure that the system has been properly earthed.
Earth cables should never be connected to a gas pipe, municipal water pipe, light-
ning conductor or telephone earth cable. Incorrect installation of the earth cable
may produce an electric shock.
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.
Do not install near places where inflammable gas may leak.
Gas leaks may cause fire.
Make sure that you drain the hose properly, so that all the
water has dripped out.
Negligence may cause flooding in the room resulting in wet furniture.
Observe instructions with
great care
❚INSTALLATION PRECAUTIONS
DANGER
CAUTION
❚OPERATION 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.
The system must be installed by your dealer or a qualified pro-
fessional.
It is not advisable to install the system yourself, as faulty handling may cause leak-
age of water, electric shock or fire.
Store the remote control out of reach
of infants.
Failure to observe this may result in the batteries
being swallowed or other accidents.
Don’t swing from the system.
If the system falls down,
you may get injured.
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.
CAUTION
LPG
Do not handle the switches with wet
hands.
This may cause an electric shock.
Do not insert anything into the air inlet.
This may cause injury, as the internal fan rotates at
high speed.
RKW012A217_En.p65 06.8.3, 1:50 PM2

–3–
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.
Consult your dealer for repairs to the
system.
Wrong repairs could cause an electric shock, fire, etc.
If you notice anything abnormal (smell of
burning, etc.), stop the system, turn off the
power switch and consult your dealer.
Continued use of the system in abnormal circum-
stances may result in malfunctioning, electric shock,
fire, etc.
If the air-conditioner is moved else-
where, contact your dealer or a pro-
fessional fitter.
Faulty installation may cause water leakage, elec-
tric shock, fire, etc.
❚PRECAUTIONS FOR TRANSFER OR REPAIRS
DANGER
Safety precautions
CAUTION
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.
Do not wash the air-conditioner with wa-
ter.
This could cause an electric shock.
You should not expose any combus-
tion appliance directly to the air
stream of the air-conditioner.
The appliance may then work inadequately.
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.
Do not place anything containing wa-
ter, like vases, on top of the unit.
Water entering the unit could damage the insula-
tion and therefore cause an electric shock.
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.
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 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 sit on the outdoor unit nor put
anything on it.
If the unit falls down or things drop off it, people
could get hurt.
After a long period of use, check the unit's
support structure from time to time.
If you don't repair any damage straightaway, the
unit may fall down and cause personal injury.
Do not touch the aluminum fins on the
air heat exchanger.
Failure to observe this may result in injury.
If you operate the system together with
a combustion appliance, you must regu-
larly ventilate the indoor air.
Insufficient ventilation may cause accidents due to
oxygen deficiency.
When you clean the system, stop the
unit and turn off the power switch.
Never clean the unit while the internal fan is rotating.
RKW012A217_En.p65 06.8.3, 1:51 PM3

–4–
Choice of operations and features
Choice of operations
Features
Page 9
Drying by extracting damp from the room.
Page 9
Cooling by extracting heat from the room.
COOL DRY
Functioning of microcomputer depends on setting and room tem-
peratures. It dehumidifies while keeping room temperature almost
constant.
Page 8
Automatic selection of operating mode.
Page 9
Fanning by circulating room air.
The Auto mode automati-
cally selects the operation
mode (COOL or DRY), de-
pending on the room tem-
perature when switched on.
AUTOFAN
Page 10
Page 11, 12
There are three timers, for SLEEP, ON and
OFF. They can be set as desired.
Page 13
When using the timer to switch on, the sys-
tem should become operational shortly be-
fore the set time, depending on the room
temperature so that the desired temperature
should be reached at the set time.
Amenity facility TIMER procedure
•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.
Adjustment of
airflow
Page 14
Turning up the power operates the air condi-
tioner in the power cooling mode.
HIGH POWER mode
Page 14
This is an economic level of operation.
ECONOMY mode
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–5–
Name of each part and its function
INDOOR UNIT
OUTDOOR UNIT
Air outlet
Air inlet
(on side & rear surface)
Air inlet panel
Draws in the indoor air.
Unit indication section and remote control signal receiver
Photocatalytic washable deodorizing filter
Air filter
Removes dust or dirt from the inlet air.
Page 17
Wireless remote control
Drain hose
Drains water from the dehumidified air.
Left/right air flow adjustment louver
Page 10
Up/down air flow direction adjustment flap
Page 10
Air outlet
Air blows out of here.
Unit operation switch
Room temperature detector
Natural enzyme filter
Accessories
Wireless remote control
Battery (R03(AAA,Micro)×2)
Natural enzyme filter
(green)
Photocatalytic washable deodoriz-
ing filter (orange)
Wood screw (Quantity:2)
(for remote control holder mounting)
Wireless remote
control holder
Refrigerant piping connection electric flex
SRK52CF-BN
SRK71CF-BN
SRC52CF-BN
SRC71CF-BN
*The appearance varies for Models 52 and 71.
SRK52CF-BP
SRK71CF-BP
SRC52CF-BP
SRC71CF-BP
RKW012A217_En.p65 06.8.3, 1:51 PM5

–6–
Unit indication section
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.
Unit ON/OFF button
Secure either the upper or lower 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.
In emergencies, this button can be used for turning on/off the unit when re-
mote control is not available. Page 15
Removal, installation of air inlet panel
ECONO light (orange)
Illuminates during ECONOMY operation.
HI POWER light (green)
Illuminates during HIGH POWER operation.
RUN light (green)
•Illuminates during operation.
•Blinks at the ‘CLEAN operation’.
Page 15
TIMER light (yellow)
Illuminates during TIMER operation.
Unit ON/OFF button
CLEAN operation
ON
OFF
3 sec.
1 sec.
How to close the air inlet panel
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–7–
Operation and indication section for remote control
Operation section
FAN SPEED button
Each time the button is pushed, the indi-
cator is switched over in turn.
•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 indi-
cator is switched over in turn.
ON/OFF (luminous) button
Press for starting operation, press again for
stopping.
HI POWER/ECONO button
This button changes the HIGH POWER/
ECONOMY mode.
Page 14 AIR FLOW (UP/DOWN) button
This button changes the air flow (up/down) mode.
Page 10
TIME SET UP switch
This switch for setting the time.
Page 13
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
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.
RESET switch
Switch for resetting microcomputer.
Page 16
Indication section
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.
SLEEP indicator
Indicates during SLEEP operation.
ON/OFF TIMER indicator
Indicates during ON/OFF TIMER operation.
CLEAN indicator
Indicates during CLEAN operation.
AIR FLOW indicator
Shows selected flap and louver mode.
HI POWER/ECONO MODE indicator
Indicates during HIGH POWER / ECONOMY
mode operation.
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.
OPERATION MODE indicator
Indicates selected operation with lamp.
[ (Auto) •(Cool) •(Fan) •(Dry)]
OFF TIMER button
This button selects OFF TIMER operation.
Page 11
TEMPERATURE button
This button sets the room temperature.
(This button changes the present time and
TIMER time.)
TIME indicator
Indicates present time or timer setting time.
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–8–
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, DRY) depending on the room temperature when switched on.
Air flow direction adjustment
procedure. Page 10
1
When a change in temperature is desired.
Press the or button.
•Air is not blown out during the op-
eration.
Page 20
•If you don’t want the AUTO mode program, change to
COOL, DRY or FAN instead of AUTO.
Page 9
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
■You can choose the capacity of your air-conditioner when cooling or fan.
Press the FAN SPEED button.
Move the [ mark] to the desirable fan speed position.
AUTO HI MED LO
NOTE
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–9–
COOL/DRY/FAN mode operation procedure
Air flow direction adjustment procedure. Page 10
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), (Fan), (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.
•Air is not blown out during the operation.
Page 20
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.
Cooling operation
Outside temperature Approximately 21 to 54 °C
Inside temperature Approximately 21 to 32 °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.
Press the FAN SPEED button
Set the fan speed as desired.
COOL
FAN
DRY
26°C~28°C——21°C~24°C
Inside humidity
RKW012A217_En.p65 06.8.3, 1:52 PM9