Mitsubishi Electronics Mcfz A12wv User Manual

OPERATING INSTRUCTIONS  
For customers  
SPLIT-TYPE AIR CONDITIONERS  
English  
Deutsch  
Français  
Nederlands  
Español  
Italiano  
To use this unit correctly and safely, be sure to read this operating instructions  
before use.  
Bedienungsanleitung  
Für Kunden  
Um diese Einheit richtig und sicher zu verwenden, unbedingt diese Bedienungs-  
anleitung vor der Inbetriebnahme durchlesen.  
NOTICE D’UTILISATION  
A lattention des clients  
Pour avoir la certitude dutiliser cet appareil correctement et en toute sécurité, veuillez  
lire attentivement cette notice dinstructions avant de mettre lappareil en fonction.  
OPERATING INSTRUCTIONS  
INDOOR UNIT  
MCFZ-A12WV  
GEBRUIKSAANWIJZING  
Voor de klant  
Om dit apparaat op de juiste manier en veilig te gebruiken, dient u eerst deze  
gebruiksaanwijzing aandachtig door te lezen.  
MANUAL DE INSTRUCCIONES  
Para los clientes  
Para emplear correctamente este aparato y por razones de seguridad debe leer  
este manual de instrucciones de manejo antes de su utilización.  
LIBRETTO D’ISTRUZIONI  
Per gli utenti  
Per utilizzare correttamente questunità, leggere questo libretto distruzioni atten-  
tamente e per intero.  
√¢∏°π∂™ §∂π∆√Àƒ°π∞™  
°È· ÙÔÓ ÂÏ¿ÙË  
∂ÏÏËÓÈο  
Português  
Dansk  
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fiÙÈ ¤¯ÂÙ ‰È·‚¿ÛÂÈ ·˘Ùfi ÙÔ ÂÁ¯ÂÈÚ›‰ÈÔ Ô‰ËÁÈÒÓ ÚÈÓ ·fi ÙËÓ ¯Ú‹ÛË.  
INSTRUÇÕES DE OPERAÇÃO  
Para os clientes  
Para utilizar esta unidade correctamente, certifique-se de que lê estas instruções  
de operação antes da utilização.  
BRUGSANVISNING  
Til kunden  
Læs denne brugsanvisning før brugen så korrekt og forsvarlig anvendelse af klima-  
anlægget sikres.  
BRUKSANVISNING  
För kunder  
Svenska  
Türkçe  
För att använda enheten på rätt och säkert sätt ska denna bruksanvisning läsas  
innan enheten tas i bruk.  
‹fiLETME TAL‹MATLARI  
Sat›n al›c›lar için  
Bu birimi do¤ru ve güvenli olarak çal›flt›rmak için, kullanmadan önce bu iflletme  
talimatlar›n› mutlaka okuyun.  
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ  
Для пользователей  
Русский  
Для обеспечения правильного и безопасного использования прибора следует  
до начала его эксплуатации внимательно прочитать данное руководство.  
SAFETY PRECAUTIONS  
NAME OF EACH PART  
Indoor unit (When installed on the floor)  
CAUTION  
Do not operate the unit at low outside temperature (less than -10°C) in the cooling mode.  
Vertical vane  
In the cooling mode, if the unit is operated at low outside temperature (less than -10°C), water con-  
densed in the air conditioner may drop and wet or damage furniture, etc.  
Horizontal vane  
Do not use the unit for special purposes.  
Operation Indicator lamp  
Do not use this air conditioner to preserve precision devices, food, animals, plants and art objects.  
This may cause deterioration of quality, etc.  
Remote control receiving section  
Front panel  
Do not put a stove, etc. where they are exposed to direct airflow.  
This may cause imperfect combustion.  
When the unit is to be cleaned, switch it off and disconnect the power supply plug and/or turn off  
the breaker.  
Since the fan rotates at high speed during operation, this may cause an injury.  
Air cleaning filter (White bellows type) (OPTION)  
When the unit is not going to be used for a long time, disconnect the power supply plug and/or turn  
off the breaker.  
Air inlet  
Air filter  
Otherwise, dirt may collect and this may cause a fire.  
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.  
If liquid from the batteries gets onto your skin or clothes, wash it well with clean water.  
Deodorizing filter (Gray sponge type) (OPTION)  
Remote controller  
If liquid from the batteries gets into your eyes, wash them well with clean water and consult a doctor at  
once.  
Operation section  
(When the air inlet grille is pulled forward)  
Ventilate well in using the unit with a stove, etc.  
An oxygen shortage may occur.  
Do not operate switches with wet hands.  
This may cause an 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.  
Do not step or put anything on the indoor/outdoor unit.  
This may cause an injury, etc. if you or something falls down.  
(When installed on the ceiling)  
Emergency operation switch  
For installation  
WARNING  
Consult your dealer for installation of the air conditioner.  
Outdoor unit  
CAUTION  
Do not install the unit where flammable gas could leak.  
Air inlet (back and side)  
If gas leaks and collects around the unit, it may cause an explosion.  
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.  
Piping  
Drain hose  
Install an earth leakage breaker depending on the place where the air conditioner is to be installed  
(humid places, etc.).  
If the earth leakage breaker is not installed, it may cause an electric shock.  
Drain should be fully drained.  
If the drainage route is incomplete, water may drop from the unit.This may wet and damage the furniture.  
Air outlet  
Drain outlet  
3
NAME OF EACH PART  
PREPARATION BEFORE OPERATION  
Remote controller  
Auto restart function  
These models are equipped with an auto restart function. If you do not want to use this function,  
please consult the service representative because the setting of the unit needs to be changed.  
I
Signal transmitting section  
Auto restart function is ...  
When the indoor unit is controlled with the remote controller, the operation mode, the set temperature and the fan speed are  
stored in the memory. If a power failure occurs or the main power is turned off during operation, Auto restart functionsets  
automatically to start operating in the same mode as the one set with the remote controller just before the shutoff of the main  
power. (Refer to page 6 for details.)  
˚C  
Operation display section  
CLOCK  
AMPM  
12345  
AMPM  
ON/OFF (operate/  
stop) button  
TOO  
WARM  
TOO  
ON/OFF  
Indoor unit  
COOL  
Insert the power supply plug into the power outlet and/or turn the breaker on.  
I
Temperature buttons  
WARNING:  
Remove dirt from the power supply plug and insert the plug securely.  
If dirt adheres to the plug or insertion is incomplete, it may cause a fire or an electric shock.  
Open the front lid.  
(This diagram shows an overall view.)  
AMPM  
12345  
AMPM  
TOO  
TOO  
ON/OFF  
WARM  
COOL  
Fan speed control button  
FAN  
STOP  
I
FEEL  
Off-timer button  
On-timer button  
HEAT  
AUTO  
VANE  
START  
HR.  
DRY  
COOL  
MODE  
HR.button  
Operation select button  
ECONO COOL button  
MIN.button  
(Time set buttons)  
ECONO COOL  
MIN.  
RESET CLOCK  
CLOCK set button  
Vane control button  
RESET button  
4
PREPARATION BEFORE OPERATION  
Handling of the remote controller  
Remote controller  
When the remote controller cannot be used (emergency operation)  
The range that the signal can reach is about 6 m when  
the remote controller is pointed at the front of the in-  
door unit.  
When a button is pressed, one or two beeps will be  
heard from the indoor unit. If no sound is heard, op-  
erate again.  
Use the remote controller carefully.  
If it is dropped, thrown or it gets wet, the remote con-  
troller may not operate.  
When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation  
can be done using the EMERGENCY OPERATION switch.  
How to set the batteries and the current  
time  
1 Press the EMERGENCY OPERATION switch.  
2 To stop the emergency operation, press the  
EMERGENCY OPERATION switch once (in  
case of EMERGENCY HEAT MODE) or twice  
(in case of EMERGENCY COOL MODE).  
1 Remove the front lid and insert batteries.  
Each time the EMERGENCY OPERATION switch is  
pressed, the unit will operate in order of EMER-  
GENCY COOL MODE, EMERGENCY HEAT MODE  
and STOP MODE.  
Then reattach the front lid.  
Insert the minus pole of the batteries first.  
Check if the polarity of the batteries is correct.  
However, when the EMERGENCY OPERATION  
switch is once pressed, the unit will operate in test  
run for 30 minutes and then the operation mode  
shifts to EMERGENCY MODE.  
When installing on a wall, etc.  
Install the remote controller holder in a position where  
the signal reception sound (beep) can be heard from  
ON/OFF  
the indoor unit when the  
button is pressed.  
Insert the minus pole  
of the batteries first.  
How to install/remove the remote controller  
Installing :Insert the remote controller downward.  
Removing :Pull it up.  
2 Press the RESET button.  
Press using a  
thin stick.  
Remote controller  
holder  
Details of EMERGENCY MODE are as shown be-  
low. 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 min-  
utes.  
Dry-cell batteries  
If the RESET button is not pressed, the remote con-  
troller may not operate correctly.  
I Reference for replacing batteries  
Replace the batteries with new AAA alkaline batteries  
in the following cases:  
· When the indoor unit does not respond to the remote  
control signal.  
3 Press the CLOCK set button.  
Press using a  
thin stick.  
· When the display on the remote controller becomes  
dim.  
· When a button of the remote controller is pressed, all  
displays appear on the screen, and then disappear  
immediately.  
Operation mode  
Set temperature  
Fan speed  
COOL  
24°C  
HEAT  
24°C  
Medium  
Auto  
Medium  
Auto  
Horizontal vane  
Do not use manganese batteries. The remote controller  
could malfunction.  
HR.  
MIN.  
The operation mode is indicated by the Operation  
Indicator lamp on the indoor unit as following fig-  
ure.  
4 Press the  
and  
buttons (TIME SET  
The service life of an alkaline battery is about 1 year.  
However, a battery whose time limit is approaching  
may be exhausted soon. The recommended usable  
time limit is indicated (month/year) on the bottom of  
the battery.  
To prevent liquid leakage, take out all batteries when  
the remote controller is not going to be used for a  
long time.  
buttons) to set the current time.  
FAN  
STOP  
START  
HR.  
I
FEEL  
HEAT  
AUTO  
Operation Indicator lamp  
VANE  
EMERGENCY COOL  
Operation Indicator  
DRY  
COOL  
MODE  
EMERGENCY HEAT  
Operation Indicator  
ECONO COOL  
MIN.  
CAUTION:  
RESET CLOCK  
If liquid from the batteries gets onto your skin or  
clothes, wash it well with clean water.  
If liquid from the batteries gets into your eyes, wash  
them well with clean water and consult a doctor at  
once.  
STOP  
Operation Indicator  
HR.  
Each time the  
increases by 1 hour, and each time the  
is pressed, the set time increases by 1 minute.  
button is pressed, the set time  
MIN.  
button  
Do not use rechargeable batteries.  
Replace the 2 batteries with new ones of the same  
type.  
5 Press the CLOCK set button again and close  
the front lid.  
Dispose of exhausted batteries in the correct man-  
ner.  
5
I FEEL... AUTO OPERATION  
With the (I FEEL...)auto operation mode, the optimum room condition can be set automatically  
with a one-touch operation.  
Description of I FEEL...mode  
Details of operation  
To start operation:  
According to the room temperature when the operation starts, the operation mode is automatically set to COOL, DRY or  
HEAT. 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  
button.  
ON/OFF  
Press the  
button.  
I
MODE  
CLOCK  
AMPM  
When the “  
(I FEEL...)mode is selected, the air conditioner is automatically  
12345  
controlled at the optimum temperature.  
Details of auto operation  
TOO  
TOO  
ON/OFF  
To stop operation:  
WARM  
COOL  
ON/OFF  
Press the  
button.  
Room temperature  
when started  
Operation mode Target temperature  
(initial state)  
I
About 25°C or higher  
About 25°C to 23°C  
About 23°C or lower  
COOL  
DRY  
About 24°C  
FAN  
STOP  
I
FEEL  
HEAT  
AUTO  
VANE  
START  
HR.  
HEAT  
About 26°C  
If you feel slightly warm:  
DRY  
COOL  
TOO  
MODE  
WARM  
Press the  
button to lower the temperature.  
I
NOTE:  
ECONO COOL  
MIN.  
COOL: When the room temperature is 2°C higher than the set temperature, the set temperature may not be  
changed since the air conditioner is operating to reach the target (set) temperature. In this case, please  
wait until the room temperature drops to within 2°C of the set temperature and then change the set  
temperature.  
HEAT: When the room temperature is 2°C lower than the set temperature, the set temperature may not be  
changed since the air conditioner is operating to reach the target (set) temperature. In this case, please  
wait until the room temperature rises to within 2°C of the set temperature and then change the set  
temperature.  
One press lowers the temperature by about 1°C.  
RESET CLOCK  
If you feel slightly cool:  
TOO  
COOL  
Press the  
button to raise the temperature.  
I
One press raises the temperature by about 1°C.  
MODE  
When “  
(I FEEL...)is not selected, press the  
button until it is set.  
FAN  
STOP  
START  
HR.  
I
FEEL  
Details of display on the indoor unit  
HEAT  
AUTO  
Each time the button is pressed, the operation mode is changed  
VANE  
The operation indicator at the right side of the indoor unit indicates the operation state.  
in sequence:  
(DRY) →  
(I FEEL...) →  
(HEAT)  
(AUTO) →  
(COOL) →  
DRY  
COOL  
Lighted  
Operation Indicator  
MODE  
Not lighted  
MIN  
Operation indicator lamp  
Difference between target  
temperature and room temperature  
Indication  
Description of AUTO RESTART FUNCTION”  
Operation state  
These units are equipped with an auto restart function.When the main power is turned on, the air conditioner will start  
operation automatically in the same mode as the one set with the remote controller before the shutoff of the main  
power.  
If the unit was set to off with the remote controller before the shutoff of the main power, it will remain stopped even after  
the main power is turned on.  
If the unit was in the emergency operation before the shutoff of the main power, it will start operation, when main power  
comes on, in the same mode as the one set with the remote controller before the emergency operation.  
If the unit is operated in I FEEL...or AUTOmode before power failure, the operation mode (COOL, DRY or HEAT) is  
not stored in the memory. When the main power is turned on, the unit decides the operation mode by the initial room  
temperature at restart and starts operation again.  
This shows that the air conditioner is operating to reach the  
target temperature. Please wait until the target temperature  
is obtained.  
About 2°C or more  
This shows that the room temperature is approaching the  
target temperature.  
About 2°C or less  
6
AUTO CHANGEOVER... AUTO MODE OPERATION  
MANUAL OPERATION (COOL, DRY, HEAT)  
An automatic cooling and heating changeover operation system ensures easy control and year-round  
air conditioning.  
To select the COOL, DRY or HEAT mode:  
ON/OFF  
Once the desired temperature is set, unit operation is switched automatically between cooling and  
heating according to the room temperature. In addition, fan control of the outdoor unit enables cooling  
operation at outside temperature as low as -10 °C.  
1 Press the  
button.  
˚C  
CLOCK  
MODE  
AMPM  
2 Select the operation mode by pressing the  
button.  
12345  
Each time this button is pressed, the operation mode is changed in sequence:  
(I FEEL...) (AUTO) (COOL) (DRY) (HEAT)  
To select the AUTO mode:  
TOO  
TOO  
ON/OFF  
ON/OFF  
WARM  
COOL  
1 Press the  
button.  
To stop operation:  
ON/OFF  
˚C  
MODE  
CLOCK  
Press the  
button.  
I
2 Select the  
(AUTO) mode by pressing the  
button.  
AMPM  
12345  
FAN  
STOP  
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  
I
FEEL  
Each time this button is pressed, the operation mode is changed in sequence:  
(I FEEL...) (AUTO) (COOL) (DRY) (HEAT)  
The set temperature is also displayed on the remote controller.  
ON/OFF  
HEAT  
AUTO  
button.  
VANE  
START  
HR.  
TOO  
TOO  
ON/OFF  
DRY  
COOL  
WARM  
COOL  
MODE  
To stop operation:  
ECONO COOL  
MIN.  
ON/OFF  
Press the  
button.  
RESET CLOCK  
FAN  
STOP  
I
I
FEEL  
HEAT  
AUTO  
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  
ON/OFF  
VANE  
START  
HR.  
button.  
DRY  
COOL  
MODE  
When the set temperature is to be changed:  
I
I
TOO  
WARM  
Press the  
button to lower the temperature. One press lowers the temperature by about 1°C.  
ECONO COOL  
MIN.  
TOO  
COOL  
RESET CLOCK  
Press the  
button to raise the temperature. One press raises the temperature by about 1°C.  
In COOL operation  
When the outside temperature is low, the fan of the outdoor unit turns on and off frequently to maintain sufficient  
cooling capacity.  
When the set temperature is to be changed:  
I
TOO  
WARM  
Press the  
button to lower the temperature. One press lowers the temperature by about 1°C.  
In DRY operation  
TOO  
COOL  
The temperature control (temperature setting) cannot be done.  
The room temperature is slightly lowered in this operation mode.  
Press the  
button to raise the temperature. One press raises the temperature by about 1°C.  
The details of the display on the indoor unit are explained on page 6.  
Description of AUTO CHANGEOVER”  
NOTE:  
(1) Initial mode  
When the ambient temperature is too high, the room temperature may not reach the set temperature since the unit  
operates to cool the room under a high load.  
1 When unit starts the operation with AUTO operation from off;  
If the room temperature is higher than the set temperature, operation starts in COOL mode.  
If the room temperature is equal to or lower than the set temperature, operation starts in HEAT mode.  
(2) Mode change  
Description of AUTO RESTART FUNCTION”  
1 COOL mode changes to HEAT mode when 15 minutes have passed with the room temperature 2 degrees below the  
Refer to page 6.  
set temperature.  
2 HEAT mode changes to COOL mode when 15 minutes have passed with the room temperature 2 degrees above the  
set temperature.  
Description of AUTO RESTART FUNCTION”  
Refer to page 6.  
7
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT  
AIR FLOW velocity and direction can be selected as required.  
AUTO AIR FLOW DIRECTION CONTROL OPERATION  
FAN  
To change the AIR FLOW velocity, press the  
button.  
I
VANE  
When the AUTO mode is selected with the  
button, the position of the horizontal vane is automatically set to corre-  
Each time the button is pressed, the fan speed is changed in sequence:  
spond to the operation mode for effective operation.  
(Low) →  
(Med.) →  
(High) →  
(AUTO)  
Use the  
(High) notch to cool/heat the room more.  
For the floor standing unit  
CLOCK  
If the operating sound of the air conditioner disturbs your sleep, use the  
(Low) notch.  
AMPM  
12345  
(1) COOL, DRY  
The air is blown out upwards.  
(2) HEAT  
When the air flow temperature is  
When the air flow temperature  
rises, the air is blown out hori-  
zontally.  
To change the AIR FLOW blowing direction vertically, press the  
I
TOO  
TOO  
too low, the air is blown out up-  
wards.  
ON/OFF  
VANE  
WARM  
COOL  
button.  
Each time the button is pressed, the angle of the horizontal vane is changed in  
sequence: 1 2 3 4 5 (SWING) →  
(AUTO)  
FAN  
STOP  
I
FEEL  
SWING OPERATION  
HEAT  
AUTO  
VANE  
START  
HR.  
Use the swing operation for the air flow to reach all corners of the room.  
DRY  
COOL  
MODE  
Recommended horizontal vane range  
COOL  
Y
DR  
Use the  
(AUTO) position usually.  
ECONO COOL  
MIN.  
1
Use position 1 or 2 in the COOL or DRY mode and use  
positions 3 to 5 in the HEAT mode when adjusting to  
your requirements.  
2
3
4
For the ceiling suspended unit  
RESET CLOCK  
5
(1) COOL, DRY  
The air is blown out horizontally.  
(2) HEAT  
When the air flow temperature  
is too low, the air is blown out  
horizontally.  
When the air flow temperature  
rises, the air is blown out down-  
wards.  
NOTE:  
In the cooling operation, when the air conditioner is operated with setting the horizontal vane to 4 or 5 for 1 hour, the  
AIR FLOW direction is automatically set to horizontal 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.  
In the heating operation, if the air flow temperature is too low or when defrosting is being done, the horizontal vane  
position is set to position 1.  
NOTE:  
When the operation mode changes in (AUTO)mode, the horizontal vane is automatically changed to the  
position in each mode.  
To change the horizontal direction of the AIR FLOW  
I
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.  
8
ECONO COOL OPERATION  
Use this operation when you want to be comfortable in COOL mode even with energy saved.  
WHEN THE AIR CONDITIONER IS NOT GOING TO BE  
USED FOR A LONG TIME  
Perform the following operations while the unit is operat-  
ing in the MANUAL COOL mode.  
When it is not going to be used for a long  
time:  
When the air conditioner is to be used  
again:  
ECONO COOL  
˚C  
Press the  
button.  
I
CLOCK  
1 Clean the air filter and install it in the indoor  
1 Perform the FAN operation for 3 or 4 hours  
AMPM  
12345  
When the  
(ECONO COOL) operation is selected in COOL mode, the air  
to dry the inside of the air conditioner.  
unit.  
conditioner performs swing operation in various cycle according to the tempera-  
ture of air conditioner.  
Also SET TEMPERATURE is automatically set 2°C higher than in COOL mode.  
To perform FAN operation, set the remote control-  
ler to the highest temperature in the MANUAL COOL  
mode. (Refer to page 7.)  
(Refer to page 10 for cleaning instructions.)  
TOO  
TOO  
ON/OFF  
WARM  
COOL  
2 Check that the air inlet and outlet of the in-  
door/outdoor units are not blocked with any  
obstacles.  
To release the ECONO COOL operation:  
2 Turn off the breaker and/or disconnect the  
ECONO COOL  
power supply plug.  
FAN  
STOP  
Press the  
button again.  
I
I
FEEL  
HEAT  
AUTO  
3 Check that the earth is connected correctly.  
VANE  
START  
HR.  
VANE  
CAUTION:  
DRY  
COOL  
When the  
button is pressed or the operation mode is changed during  
MODE  
Turn off the breaker and/or disconnect the power sup-  
ply plug when the air conditioner is not going to be used  
for a long time.  
the ECONO COOL operation, ECONO COOL operation is released.  
CAUTION:  
Earth the unit.  
Do not connect the earth to a gas pipe, water pipe, light-  
ning rod or the earth of a telephone. If the earthing is  
incorrect, it may cause an electric shock.  
TOO  
TOO  
ECONO COOL  
MIN.  
WARM  
COOL  
FAN  
The  
button, the  
or  
button and ON/OFF timer (explained below)  
Dirt may collect and this may cause a fire.  
RESET CLOCK  
are available.  
3 Remove the batteries from the remote con-  
What is ECONO COOL?  
troller.  
Swing air flow (change of air flow) makes you feel cooler than constant air flow. So, even though the set temperature is  
automatically set 2°C higher, it is possible to perform cooling operation with keeping comfort. As a result, energy can be saved.  
CAUTION:  
To prevent liquid leakage, take out all batteries when the  
remote controller is not going to be used for a long time.  
TIMER OPERATION (ON/OFF TIMER)  
It is convenient to set the timer when you go to bed, when you get home, when you get up, etc.  
MAINTENANCE  
How to set the ON timer  
How to set the OFF timer  
START  
STOP  
1 Press the  
button during operation.  
1 Press the  
button during operation.  
Before starting maintenance  
Cleaning the indoor unit  
Each time the button is pressed, the ON timer mode  
alternates between ON and OFF.  
Each time the button is pressed, the OFF timer mode  
alternates between ON and OFF.  
Turn off the breaker and/or disconnect the  
power supply plug.  
Clean the unit using a soft dry cloth.  
I
I
If the dirt is noticeable, wipe the unit with a cloth  
soaked in a solution of mild detergent diluted in luke-  
warm water.  
HR.  
HR.  
2 Set the time of the timer using the  
and  
2 Set the time of the timer using the  
and  
MIN.  
MIN.  
buttons.  
buttons.  
CAUTION:  
Do not use gasoline, benzine, polishing powder, or  
insecticide. The unit may be damaged.  
HR.  
HR.  
Each time the  
button is pressed, the set time in-  
Each time the  
button is pressed, the set time in-  
MIN.  
When the unit is to be cleaned, switch it off and discon-  
nect the power supply plug and/or turn off the breaker.  
Since the fan rotates at high speed during operation, it  
may cause an injury.  
MIN.  
creases by 1 hour;each time the  
button is pressed,  
creases by 1 hour; each time the  
button is pressed,  
the set time increases by 10 minutes.  
the set time increases by 10 minutes.  
To release the OFF timer:  
To release the ON timer:  
STOP  
START  
Press the  
button.  
I
Press the  
button.  
I
Programming timer operation  
The ON timer and the OFF timer can be used in combination. The timer of the set time that is reached first will operate first.  
(“ ” mark indicates the order of timer operations.)  
If the current time has not been set, the timer operation cannot be used.  
NOTE:  
If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting is  
cancelled. As these models are equipped with an auto restart function, the air conditioner starts operating with timer  
cancelled at the same time that power is restored.  
9
CLEANINGTHE AIR FILTER/THE DEODORIZING FILTER  
(OPTION)  
REPLACEMENT OFTHE DEODORIZING FILTER (OPTION)/  
AIR CLEANING FILTER (OPTION)  
When the capacity is lowered because of dirt, etc., it is necessary to replace the deodorizing filter/air  
cleaning filter.  
Cleaning the air filter  
(about once every 2 weeks)  
Cleaning the deodorizing filter  
(about once every 2 weeks)  
Air cleaning filter replacement  
(about once every 4 months)  
Deodorizing filter replacement  
(about once a year)  
1 Remove the air filter.  
1 Remove the air filter and the deodorizing fil-  
ter together. Then separate the deodorizing  
filter (Gray sponge type) from the air filter.  
Pull the air inlet knob forward.  
1 Remove the air filter and the air cleaning fil-  
1 Remove the air filter and the deodorizing fil-  
The deodorizing filter is harmless to people.However,  
to keep its effectiveness, be sure to hold the frame  
and not to touch the surface of the filter with your hand.  
ter together.  
ter together.  
(If there is deodorizing or air cleaning filter (OP-  
TION), please remove it before cleaning the air fil-  
ter.)  
FRONT  
2 Separate the air cleaning filter (White bellows  
2 Separate the deodorizing filter (Gray sponge  
type) from the air filter.  
type) from the air filter.  
2 Remove dirt from the air filter using a vacuum  
2 Soak the filter together with its frame in luke-  
cleaner or by washing the filter with water.  
warm water for about 15 minutes.  
FR  
F
O
R
O
N
T
NT  
If the dirt is noticeable, wash the filter with a solu-  
tion of mild detergent diluted in lukewarm water.  
If hot water (50°C or more) is used, the filter may  
be deformed.  
If the dirt is noticeable, use a solution of mild deter-  
gent diluted in lukewarm water.  
If hot water (50°C or more) is used, the filter may be  
deformed.  
Do not use a scrubbing brush or sponge. This may  
damage the surface of the filter.  
Do not use a chlorine detergent.  
3 Replace a new air cleaning filter and attach it  
to the air filter. (Place the catch into the hole  
of the air filter for the security.)  
3 Replace a new deodorizing filter and attach  
it to the air filter. (Place the catch into the  
hole of the air filter for the security.)  
FR  
FRONT  
O
NT  
4 Install the air filter and the air cleaning filter  
4 Install the air filter and the deodorizing filter  
3 After washing with water/lukewarm water, dry  
together.  
together.  
the air filter well in the shade.  
Do not expose the air filter to direct sunlight or heat  
from a fire when drying it.  
3 After washing with water/lukewarm water, dry  
the deodorizing filter well in the shade.  
Do not expose the deodorizing filter to direct sun-  
light or heat from a fire when drying it.  
Air cleaning filter  
Deodorizing filter  
If the air cleaning filter is clogged, it may lower the units  
capacity or cause condensation at the air outlet.  
The air cleaning filter is disposable. The standard us-  
able term is about 4 months. However, if the colour of  
the filter turns to dark brown, replace the filter at once.  
Cleaning is necessary about once every 2 weeks.How-  
ever, if the dirt is noticeable, clean more often.  
When the colour of the filter is not restored even if the  
filter is washed as the procedure shown on the left  
(Cleaning the deodorizing filter) or when the filter be-  
comes black, replace the filter with a new one.  
4 Install the air filter.  
4 Attach the deodorizing filter to the air filter.  
(Place the catch into the hole of the air filter  
for the security.)Then install both of them to  
the body.  
Set the air inlet knob.  
Standard interval for filter replacement is about 1 year.  
Optional parts Optional parts are available from your local dealer.  
Name of parts  
Parts number  
DEODORIZING FILTER  
MAC-1700DF  
AIR CLEANING FILTER  
MAC-1200FT  
FRONT  
10  
BEFORE CONTACTINGTHE SERVICE REPRE- WHENYOU THINK THAT TROUBLE HAS OCCURRED  
SENTATIVE, CHECKTHE FOLLOWING AGAIN  
Question  
Answer (not a malfunction)  
Question  
Answer (not a malfunction)  
The air conditioner cannot This protects the air conditioner according to in-  
The air flow direction  
changes during operation.  
The direction of the hori-  
zontal vane cannot be ad-  
justed with the remote con-  
troller.  
When the air conditioner is operated in COOL  
or DRY mode, if the operation continues with air  
blowing down for 1 hour, the direction of the air  
flow is automatically set to position 1 to prevent  
condensed water from dropping.  
In the heating operation, if the air flow tempera-  
ture is too low or when defrosting is being done,  
the horizontal vane position is automatically set  
to position 1.  
Question  
Check points  
be operated for about 3 min-  
utes when restarted.  
structions from the microprocessor. Please wait.  
The air conditioner cannot Is the breaker turned on?  
be operated.  
Is the fuse blown?  
Is the ON timer set? (Page 9)  
Cracking sound is heard.  
This sound is generated by the expansion/con-  
traction of the front panel, etc. due to change in  
temperature.  
The room cannot be cooled Is the temperature setting correct? (Page 7)  
or heated sufficiently.  
Is the filter clean? (Page 10)  
The air from the indoor unit The air conditioner may suck in an odor adher-  
Are there any obstacles blocking the air inlet or  
outlet of the indoor or outdoor unit?  
Is a window or door open?  
smells strange.  
ing to the wall, carpet, furniture, cloth, etc. and  
blow it out with the air.  
Water leaks from the out- During COOL and DRY operations, pipe or pipe  
door unit.  
connecting sections are cooled and this causes  
water to condense.  
In the heating operation, the defrosting opera-  
tion makes water frozen on the outdoor unit melt  
and drip down.  
The fan of the outdoor unit When the outside temperature is low, the fan  
The air from the indoor unit Is the filter clean? (Page 10)  
smells strange.  
does not rotate even though  
the compressor is running.  
Even if the fan starts to ro-  
tate, it stops soon.  
may not operate to maintain sufficient cooling  
capacity.  
The display on the remote Are the batteries exhausted? (Page 5)  
controller does not appear Is the polarity (+, -) of the batteries correct?  
or it is dim. The indoor unit  
does not respond to the re- Are any buttons on the remote controller of other  
mote control signal. electric appliances being pressed?  
In the heating operation, water condensed on  
the heat exchanger drips down.  
(Page 5)  
The sound of water flowing This is the sound of refrigerant flowing inside  
White smoke is discharged In the heating operation, vapor generated by the  
from the outdoor unit. defrosting operation looks like white smoke.  
is heard.  
the air conditioner.  
This is the sound of condensed water flowing in  
the heat exchanger.  
This is the sound of the heat exchanger defrost-  
ing.  
When a power failure oc- Does the air conditioner start operating again?  
Air does not blow out soon Please wait as the air conditioner is preparing  
in the heating operation. to blow out warm air.  
curs.  
If the air conditioner had operated before the  
power failure, as these models are equipped with  
an auto restart function, the air conditioner  
should start operating again. (Refer to Descrip-  
tion of AUTO RESTART FUNCTIONon page  
6.)  
The operation is stopped Defrosting of the outdoor unit is being done (De-  
The sound as burbling is This sound is heard when the outside air is ab-  
for about 10 minutes in the  
heating operation.  
frosting operation).  
heard.  
sorbed from the drain hose in turning on the  
range hood or the ventilation fan and that makes  
water flowing in the drain hose spout out.  
This sound is also heard when the outside air  
blows into the drain hose in case the outside wind  
is strong.  
Since this is completed in 10 minutes, please  
wait. (When the external temperature is too low  
and humidity is too high, frost is formed.)  
Even if the above items are checked, when the air conditioner does not  
recover from the trouble, stop using the air conditioner and consult your  
dealer.  
Hissing sound is some- This is the sound when the flow of refrigerant  
times heard. inside the air conditioner is switched.  
The room cannot be cooled When a ventilation fan or a gas cooker is used  
The room cannot be heated When the outside temperature is low, the heat-  
sufficiently. ing effect may not be sufficient.  
In the following cases, stop using the air conditioner and consult your dealer.  
sufficiently.  
in a room, the cooling load increases, resulting  
in an insufficient cooling effect.  
When water leaks or drops from the indoor unit.  
When the left operation indicator lamp blinks.  
When the breaker trips frequently.  
The remote control signal may not be received in a room where an electronic  
ON/OFF type fluorescent lamp (inverter-type fluorescent lamp, etc.) is used.  
Operation of the air conditioner may interfere with radio or TV reception in  
areas where the reception is weak. An amplifier may be required for the af-  
fected device.  
When the outside temperature is high, the cool-  
ing effect may not be sufficient.  
The air conditioner starts These models are equipped with an auto restart  
the operation only with the  
main power turned on,  
though you do not operate  
the unit with the remote  
controller.  
function.When the main power is turned off with-  
out stopping the air conditioner with the remote  
controller and is turned on again, the air condi-  
tioner will start operation automatically in the  
same mode as the one set with the remote con-  
troller just before the shutoff of the main power.  
Mist is discharged from the The cool air from the air conditioner rapidly cools  
air outlet of the indoor unit.  
moisture in the air inside the room, and it turns  
into mist.  
When thunder is heard, stop operation and disconnect the power supply plug  
and/or turn off the breaker. Otherwise, the electrical parts may be damaged.  
Mechanical sound is heard This is the switching sound in turning on/off the  
from the indoor unit. fan or the compressor.  
11  
This product is designed and intended for use in the residential,  
commercial and light-industrial environment.  
The product at hand is based on  
the following EU regulations:  
• Low Voltage Directive 73/23/ EEC  
• Electromagnetic Compatibility Directive  
89/336/ EEC  
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN  
VN79A517H01  
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