Mitsubishi Electronics MCF-18TN, MCF-24TN User Manual
Floor And Ceiling-Type Air-Conditioners
MCF-18TN/24TN
OPERATING INSTRUCTIONS
MANUAL DE INSTRUCCIONES
English
Español
FOR USER
PARA EL USUARIO
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
SG79A614H01
CONTENTS
SAFETY PRECAUTIONS ........................................................................................................................................................ 2
NAME OF EACH PART ............................................................................................................................................................ 4
PREPARATION BEFORE OPERATION .................................................................................................................................. 5
“I FEEL...” AUTO OPERATION ................................................................................................................................................. 6
MANUAL OPERATION (COOL, DRY, FAN) ............................................................................................................................. 7
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT ...................................................................................................... 8
TIMER OPERATION (ON/OFF TIMER) ................................................................................................................................... 9
WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME ............................................................ 9
MAINTENANCE ....................................................................................................................................................................... 9
CLEANING THE AIR FILTER/DEODORIZING FILTER (OPTION) ........................................................................................ 10
REPLACEMENT OF THE DEODORIZING FILTER (OPTION)/AIR CLEANING FILTER (OPTION) ..................................... 10
BEFORE CONTACTING THE SERVICE REPRESENTATIVE, CHECK THE FOLLOWING AGAIN ...................................... 11
WHEN YOU THINK THAT TROUBLE HAS OCCURRED ...................................................................................................... 11
INSTALLATION, RELOCATION AND INSPECTION .............................................................................................................. 12
SPECIFICATIONS ................................................................................................................................................................. 12
SAFETY PRECAUTIONS
• Since rotating parts and parts which could cause an electric shock are used in this product, be sure to read
these “SAFETY PRECAUTIONS” before use.
• Since these cautionary items shown here are important for safety, be sure to observe them.
Marks and their meanings are as shown below.
Warning: Incorrect handling could cause a serious hazard, such as death, serious injury etc. with a high prob-
ability.
Caution: Incorrect handling could cause a serious hazard depending on the conditions.
Meanings of symbols used in this manual are as shown below.
: Be sure not to do.
: Be sure to follow the instruction.
(Black) : Never insert your finger or a stick, etc.
(Black) : Never step onto the indoor/outdoor unit and do not put anything on them.
(Yellow) : Danger of electric shock. Be careful.
(Blue) : Be sure to shut off the power.
• After reading this manual, keep it together with the installation manual in a handy place for easy reference.
Warning mark position and Safety device
This air conditioner is NOT intended for use by children or infirm persons without supervisions.
•
Warning
■ Do not expose your skin directly
to cool air for a long time.
This could damage your health.
■ When an abnormality (burning
smell, etc) occurs, stop the air
conditioner and turn off the
breaker.
If the unit continues to be operated
in an abnormal condition, it may
cause a fire, trouble, etc. In this
case, consult your dealer.
■ Do not turn the breaker off/on
during operation.
• This may cause a fire due to
spark, etc.
• Be sure to turn off the breaker
absolutely after switching the indoor unit off with the remote controller.
■ Do not insert your finger or a stick, etc. into the air inlet/air outlet.
• Since the fan rotates at high
speed, this may cause an injury.
■ Repair or relocation should not
be done by the customer.
If this is done incorrectly, it may
cause a fire, an electric shock, or
injury from the unit falling, water
leaking, etc.
Consult your dealer.
• Young children should be supervised
to ensure that they do not play with the
air conditioner.
■ The customer should not install
this unit.
If this is done incorrectly, it may
cause a fire, an electric shock, or
injury from the unit falling, water
leaking, etc.
Consult your dealer.
Enclosure
Enclosure
Air outlet
Air inlet
2
■ Do not put a vase or glass on
the indoor unit.
Water dropping into the indoor unit
may deteriorate the insulation,
causing electric shock.
■ Do not clean the air conditioner
with water.
Water may enter the unit and degrade the insulation. This may
cause an electric shock.
Caution
■
When the unit is to be cleaned,
switch it off and turn off the breaker.
Since the fan rotates at high speed
during operation, this may cause
an injury.
■ Do not put a pet or houseplant
where it will be exposed to direct air flow.
This could injure the pet or plant.
■ Do not operate switches with wet
hands.
This may cause an electric shock.
■ Do not use an insecticide or
flammable spray.
This may cause a fire or deformation of the cabinet.
Caution
■ Do not operate the unit for a
long time in high humidity, e.g.
leaving a door or window
open.
In the cooling mode, if the unit is
operated in a room with high humidity (80%RH or more) for a
long time, water condensed in
the air conditioner may drop and
wet or damage furniture, etc.
■ Do not step onto an unstable
bench when maintaining the
unit, etc.
This may cause an injury, etc. if
you fall down.
■ Do not charge or disassemble
the batteries and do not throw
them into a fire.
This may result in leakage, fire
or an explosion.
■ If liquid from the alkaline batteries gets onto your skin or
clothes, wash it well with clean
water.
If liquid from the alkaline batteries gets into your eyes, wash
them well with clean water and
consult a doctor at once.
For installation
Warning
Consult your dealer for installation of the
air conditioner.
Caution
■ Earth the unit.
Do not connect the earth to a gas
pipe, water pipe, lightning rod or the
earth of a telephone. If the earthing
is incorrect, it may cause an electric
shock.
■ Install an earth leakage breaker
depending on the place where the
air conditioner is to be installed
(humid place, etc.).
If the earth leakage breaker is not
installed, it may cause an electric
shock.
■ Ventilate well in using the unit
with a stove, etc.
An oxygen shortage may occur.
■ When the unit is not going to be
used for a long time, turn off the
breaker.
Otherwise, dirt may collect and this
may cause a fire.
■ Do not use the unit for special
purposes.
Do not use this air conditioner to
preserve precision devices, food,
animals, plants and art objects.
This may cause deterioration of
quality, etc.
■ Do not step or put anything on
the indoor/outdoor unit.
This may cause an injury, etc. if you
fall down.
■ Do not put a stove, etc. where
they are exposed to direct air
flow.
This may cause imperfect combustion.
■ Do not leave the unit on an installation stand which is damaged.
The unit may fall and this may
cause an injury.
■ Replace the 2 batteries with
new ones of same type.
Using an old battery together
with a new one may result in heat
generation, leakage or an explosion.
■ Do not install the unit where flammable gas could leak.
If gas leak and collect around the
unit, it may cause an explosion.
■ Drain should be fully drained.
If the drainage route is incomplete,
water may drop from the unit. This
may wet and damage furniture.
3
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
STOP
START
HR.
MIN.
I FEEL
COOL
FAN DRY
AMPM
CLOCK
˚C
AMPM
RESET CLOCK
NAME OF EACH PART
ON/OFF
TOO
COOL
AMPM
CLOCK
˚C
AMPM
TOO
WARM
12345
Indoor unit (When installed on the floor)
Operation section
(When the air inlet grille is pulled forward)
Emergency operation switch
Vertical vane
Horizontal vane
Operation Indicator lamp
Remote control receiving section
Front panel
Air cleaning filter (White bellows type) (OPTION)
Air inlet
Air filter
Deodorizing filter (Gray sponge type) (OPTION)
Remote controller
(When installed on the ceiling)
Remote controller
Signal transmitting section
Operation display section
ON/OFF (operate/stop) button
Temperature buttons
(This diagram shows an overall view.)
Open the front lid.
Outdoor unit
4
Air inlet (back and side)
Piping
Drain hose
Air outlet
Drain outlet
Fan speed control button
Operation select button
RESET button
Off-timer button
On-timer button
HR. button
MIN. button
(Time set button)
CLOCK set button
Vane control button
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL
COOL
FAN DRY
AMPM
CLOCK
˚C
AMPM
RESET CLOCK
PREPARATION BEFORE OPERATION
HR.
MIN.
HR.
MIN.
ON/OFF
Operation Indicator Operation Indicator
Breaker for the air conditioner
Turn the breaker ON.
■
Remote controller (How to set the batteries and the current time)
1 Remove the front lid and insert batteries.
Then reattach the front lid.
Insert the minus pole of the batteries first.
Check if the polarity of the batteries is correct.
Insert the minus pole of
the batteries first.
3 Press the CLOCK set button.
Press here using
a thin stick.
4 Press the
ton) to set the current time.
and
2 Press the RESET button.
Press here using
a thin stick.
• If the RESET button is not pressed, the remote controller may not operate correctly.
• Each time the
counted up by 1 hour, and each time the
pressed, the set time is counted up by 1 minute.
5 Press the CLOCK set button again and close
the front lid.
button is pressed, the set time is
button (TIME set but-
button is
Handling of the remote controller
• The range that the signal can reach is about 6 m when
the remote controller is pointed at the front of the indoor unit.
• When a button is pressed, one or two beeps will be
heard from the indoor unit. If no sound is heard, operate again.
• Use the remote controller carefully.
If it is dropped, thrown or it gets wet, the remote controller may not operate.
When installing on a wall, etc.
• Install the remote controller installation case in a position where the signal reception sound (beep) can
be heard from the indoor unit when the
pressed.
How to install/remove the remote controller
Installing : Insert the remote controller downward.
Removing : Pull it up.
Remote controller
installation case
Dry-cell batteries
■ Reference for replacing batteries
When the indoor unit does not respond to the signal from
the remote controller, or the display becomes dim, replace the batteries with new ones (size AAA).
• Though both alkaline batteries and manganese batteries can be used, alkaline batteries are recommended because their service life is longer than that
of manganese batteries.
• The service life of an alkaline battery is about 1 year.
However, a battery which the time limit is approaching may be exhausted soon. The recommended usable time limit is indicated (month/year) on the bottom of the battery.
• Replace the 2 batteries with new ones of the same
type.
• Do not use rechargeable batteries.
• To prevent liquid leakage, take out all batteries when
the remote controller is not going to be used for a
long time.
• Dispose of exhausted batteries in the correct manner.
button is
WHEN THE REMOTE CONTROLLER
CANNOT BE USED (EMERGENCY OPERATION)
When the batteries of the remote controller run out or the
remote controller malfunctions, EMERGENCY OPERATION
can be done using the EMERGENCY OPERATION switch.
1 Press the EMERGENCY OPERATION switch.
When the EMERGENCY OPERATION switch is
pressed, the unit will operate in test run for 30 minutes
at first and then the operation mode shifts to EMERGENCY COOL MODE.
Details of EMERGENCY COOL MODE are as shown below.
However, the temperature control does not work for 30 minutes in test run and the unit is set to continuous operation.
The fan speed is set to High in test run and shifts to Medium
after 30 minutes.
Operation Mode COOL
Set temperature 24°C
Fan speed Medium
Horizontal vane Auto
The operation mode is indicated by the Operation Indicator
lamp on the indoor unit as following figures.
Operation Indicator Lamp
STOPEMERGENCY COOL
To stop the EMERGENCY COOL MODE, press
■
the EMERGENCY OPERATION switch again.
Each time the switch is pressed, the operation mode
alternates between the EMERGENCY COOL MODE
and STOP MODE.
5
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL
COOL
FAN DRY
AMPM
CLOCK
˚C
AMPM
RESET CLOCK
“I FEEL...” AUTO OPERATION
ON/OFF
ON/OFF
TOO
WARM
TOO
COOL
MODE
MODE
Operation Indicator
FAN
VANE
MODE
STOP
START
HR.
I FEEL
COOL
FAN DRY
With the “ (I FEEL...)” auto operation mode, the
optimum room condition can be set automatically
with a one-touch operation.
To start operation:
Press the
■
When the “ (I FEEL...)” mode is selected, the air
conditioner is automatically controlled at the optimum
temperature.
button.
To stop operation:
Press the
■
○○○○○○○○○○○○○○○○○○○○○○○
If you feel slightly warm,
Press the
■
perature.
One press lowers the temperature by about 1°C.
If you feel slightly cool,
Press the
■
perature.
One press raises the temperature by about 1°C.
When “
button until it is set.
Each time the button is pressed, the operation mode is
changed in sequence :
(I FEEL...)” is not selected, press the
(DRY) → (FAN)
button.
button to lower the tem-
button to raise the tem-
(I FEEL...) → (COOL) →
Description of “I FEEL...” mode
Details of operation
According to the room temperature when the operation
starts, the operation mode is automatically set to either
COOL or DRY. However, when operation is started again
within 2 hours after it is stopped, the same operation mode
before the operation is stopped is selected. The operation
mode selected first is not changed even if the room temperature changes. If the operation mode does not match
the room condition, select the appropriate operation mode
by pressing the
Details of auto operation
Room temperature
when started
About 25°C or higher
About 25°C or lower
Note:
When both Operation Indicator lamps are lighting, as
the air conditioner is operating to reach the target temperature, the set temperature may not be changed. In
this case, please wait until the lighting of Operation Indicator lamp changes from two to only one and then
change the set temperature.
button.
Operation mode
COOL
DRY
Target temperature
(initial state)
About 24°C
—
Details of display on the indoor unit
The Operation Indicator lamps at the right side of the indoor unit indicate the operation state.
Lighted
Not lighted
Operation Indicator lamp
Indica-
tion
Operation state
This shows that the air conditioner is operating to reach the
target temperature. Wait until
the target temperature is obtained.
This shows that the room temperature is approaching the
target temperature.
Difference between
target temperature
and room
temperature
About 2°C or
more
About 2°C or
less
6
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL
COOL
FAN DRY
AMPM
CLOCK
˚C
AMPM
RESET CLOCK
MANUAL OPERATION (COOL, DRY, FAN)
ON/OFF
MODE
ON/OFF
ON/OFF
TOO
WARM
TOO
COOL
To select the “COOL”, “DRY” or “FAN ” mode:
1 Press the
button.
2 Select the operation mode by pressing the
button.
Each time this button is pressed, the operation mode
is changed in sequence :
→
(DRY) → (FAN)
To stop operation:
Press the
■
After the operation mode is set once, the operation
starts in the same mode as the one set previously from
the next time by simply pressing the
○○○○○○○○○○○○○○○○○○○○○○○
When the set temperature is to be
■
changed:
• Press the
• Press the
In “DRY” operation
• The temperature control (temperature setting)
• The room temperature is slightly lowered in
Note:
When the ambient temperature is too high,
the room temperature may not reach the set
temperature since the unit operates to cool
under high load.
The details of the display on the indoor
■
unit are explained on page 6.
button.
ture.
One press lowers the temperature by about 1°C.
ture.
One press raises the temperature by about 1°C.
cannot be done.
this operation mode.
(I FEEL...) → (COOL)
button.
button to lower the tempera-
button to raise the tempera-
CONVENIENT INFORMATION
“COOL” For effective cooling
1 Close the windows and pull down
blinds. Sunlight is reduced and
cooling efficiency increases.
2 Paste a heat shield film (generally
available) on the window. Heat entering the room is reduced.
3 Block the outdoor unit from direct
sunlight. This saves energy.
“DRY” The humidity at which people feel comfortable
When air contains too much moisture, people feel uncomfortable. Humidity is related to temperature and wind. The humidity at which people feel comfortable is 60%-75% RH. in summer, 55%-70% RH. in winter.
7
ON/OFF
FAN
TOO
WARM
TOO
COOL
VANE
MODE
ECONO COOL
STOP
START
HR.
MIN.
I FEEL
COOL
FAN DRY
AMPM
CLOCK
˚C
AMPM
12345
RESET CLOCK
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT
FAN
VANE
VANE
1
2
3
4
5
COOL
DRY
COOL
DRY
5
4
3
2
1
AIR FLOW velocity and direction can be selected
as required.
To change the AIR FLOW velocity, press the
■
button.
Each time the button is pressed, the fan speed is changed
in sequence:
(AUTO)
• Use the
• If the operating sound of the air conditioner disturbs
your sleep, use the
To change the AIR FLOW blowing direction
■
vertically, press the
Each time the button is pressed, the angle of the horizontal vane is changed in sequence : 1 → 2 → 3 → 4
→ 5 →
SWING OPERATION
Use the swing operation for the air flow to reach all corners of the room.
Recommended horizontal vane range
Use the
Use position 1 or 2 in the COOL or DRY mode when
adjusting to your requirements.
(Low) → (Med.) → (High) →
(High) notch to cool the room more.
(Low) notch.
button.
(SWING) →
(AUTO) position usually.
(AUTO)
To change the horizontal direction of the AIR FLOW
■
For the floor standing unit
• Change the direction of the vertical vane manually.
For the ceiling suspended unit
• Change the direction of the vertical vane manually.
Adjust the vane before operation starts.
Since the horizontal vane moves automatically, your fingers may be caught.
AUTO AIR FLOW DIRECTION CONTROL OPERATION
• When the AUTO mode is selected with the
correspond to the operation mode for effective operation.
For the floor standing unit
(1) COOL, DRY (2) FAN
• The air is blown out upwards.
button, the position of the horizontal vane is automatically set to
• The air is blown out horizontally.
For the ceiling suspended unit
Notes:
• In the cooling operation, when the air conditioner is
(1) COOL, DRY (2) FAN
• The air is blown out horizontally.
• The air is blown out downwards.
operated with setting the horizontal vane to 4 or 5 for
1 hour, the AIR FLOW direction is automatically set to
position 1 to prevent condensed water from dropping.
• Adjust the vertical AIR FLOW direction using the remote controller. If the horizontal vane is moved manually, it may cause trouble.
8
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