Mitsubishi Electronics PFD-P250500VM-A User Manual

Air-Conditioners

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INDOOR UNIT

PFD-P250•500VM-A

GB

D

F

OPERATION MANUAL

For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

BEDIENUNGSHANDBUCH

Zum sicheren und einwandfreien Gebrauch der Klimaanlage dieses Bedienungshandbuch vor Inbetriebnahme gründlich durchlesen.

MANUEL D’UTILISATION

Pour une utilisation correcte sans risques, veuillez lire le manuel d’utilisation en entier avant de vous servir du climatiseur.

MANUAL DE INSTRUCCIONES

Lea este manual de instrucciones hasta el final antes de poner en marcha la unidad de aire acondicionado para garantizar un uso seguro
y correcto.

ISTRUZIONI DI FUNZIONAMENTO

Leggere attentamente questi istruzioni di funzionamento prima di avviare l’unità, per un uso corretto e sicuro della stessa.

E

I

NL

RU

GR

RU

TR

BEDIENINGSHANDLEIDING

Voor een veilig en juist gebruik moet u deze bedieningshandleiding grondig doorlezen voordat u de airconditioner gebruikt.

РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ

Для обеспечения правильного и безопасного использования следует ознакомиться с инструкциями, указанными в данном
руководстве по эксплуатации, тщательным образом до того, как приступать к использованию кондиционера.

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN
FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY
DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

GB

Remote controller-Button

D

Fernbedienungs-Taste

F

Touche Commande à distance

1

2

3

4 56879

I

Bottone dell’unità del comando a distanza

E

Controlador remoto-Botón

NL

Knop afstandbediening

RU

Кнопка контроллера ДУ

1 Pulsante [Regolazione della temperatura ambiente]
2 Pulsante [Timer/continuo]
3 Pulsante [Selezione modalità di funzionamento]
4 Pulsante [Selezione ora]

Pulsante [Impostazione dell’ora]

5 Pulsante [Regolazione deflettore]
6 Pulsante [Regolazione della velocità di ventilazione]
7 Pulsante [Regolazione della direzione di soffiaggio verso l’alto/il basso]

B

A
0

C

8 Pulsante [Ventilazione]
9 Pulsante [Controllo/Incorporata]
0 Pulsante [Prova di funzionamento]
A Pulsante [Filtro]
B Pulsante [ACCENSIONE/SPEGNIMENTO]
C Posizione temperatura ambiente incorporata

• Non esporre mai il comando a distanza alla luce diretta del sole, in quanto
questo può alterare la corretta rilevazione della temperatura ambiente.

• Non porre alcun ostacolo attorno alla sezione inferiore destra del comando a
distanza, in quanto questo può alterare la corretta rilevazione della temperatu­ra ambiente.

1 [Room temperature adjustment] Button
2 [Timer/continuous] Button
3 [Selecting operation] Button
4 [Time selection] Button

[Time-setting] Button

5 [Louver] Button
6 [Fan speed adjustment] Button
7 [Up/down airflow direction] Button
8 [Ventilation] Button
9 [Checking/built-in] Button
0 [Test run] Button
A [Filter] Button
B [ON/OFF] Button
C Position of built-in room temperature

• Never expose the remote controller to direct sunlight. Doing so can result in
the erroneous measurement of room temperature.

• Never place any obstacle around the lower right-hand section of the remote
controller. Doing so can result in the erroneous measurement of room tem­perature.

1 Raumtemperatur-Tasten
2 Zeitschalter-/Dauerbetrieb-Taste
3 Betriebsart-Taste
4 Zeitumschalt-Taste

Zeiteinstell-Tasten

5 Klappen-Taste
6 Luftstromgeschwindigkeit-Taste
7 Vertikale luftstromrichtung-Tasten
8 Belüftung-Tasten
9 Überprüfen/Eingebauten-Tasten
0 Testlauf-Tasten
A Filter-Taste
B Betrieb-/Stop-Taste
C Position der eingebauten Raumtemperatur

• Die Fernbedienung nicht direkter Sonneneinstrahlung aussetzen. Die Raum­temperatur wird sonst nicht korrekt gemessen.

• Den rechten unteren Teil der Fernbedienung nicht blockieren. Die Raum­temperatur wird sonst nicht korrekt gemessen.

1 Botón [Ajuste de la temperatura de la habitación]
2 Botón [Temporizador/continuo]
3 Botón [Selección del modo de funcionamiento]
4 Botón [Selección de la hora]

Botón [Determinación de la hora]

5 Botón [Persiana]
6 Botón [Ajuste de la velocidad del ventilador]
7 Botón [Dirección de la corriente ascendente/descendente de aire]
8 Botón [Ventilación]
9 Botón [Comprobación/Incorporada]
0 Botón [Prueba de funcionamiento]
A Botón [Filtro]
B Botón [ON/OFF]
C Posición de temperatura ambiente incorporada

• Nunca exponga el mando a distancia a la luz directa del sol. Si lo hace, se
producirá una lectura errónea de la temperatura de la habitación.

• Nunca ponga ningún obstáculo alrededor de la sección inferior derecha del
mando a distancia. Si lo hace, se producirá una lectura errónea de la tempera­tura de la habitación.

1 [Aanpassen kamertemperatuur] Knop
2 [Timer/continu] Knop
3 [Standselectie] Knop
4 [Tijdselectie] Knop

[Tijdinstellings] Knop

5 [Ventilatie-jaloezie] Knop
6 [Aanpassen van de ventilatorsnelheid] Knop
7 [Blaasrichting naar boven/ naar beneden] Knop
8 Knop [Ventilatie]
9 Knop [Controle/Ingebouwde]
0 Knop [Proefdraaien]
A [Filter] Knop
B [ON/OFF (AAN/UIT)] Knop
C Plaats van ingebouwde kamertemperatuursensor

• Laat de afstandsbediening nooit in direct zonlicht liggen. Als u dit toch doet
kan het zijn dat de kamertemperatuur onjuist gemeten wordt.

• Zet of hang nooit iets in de buurt van het gedeelte rechtsonder op de
afstandsbediening. Als u dit toch doet kan het zijn dat de kamertemperatuur
onjuist gemeten wordt.

1 Touche de [réglage de la température de la pièce]
2 Touche de [fonctionnement continu/minuterie]
3 Touche de [sélection du mode de fonctionnement]
4 Touche de [sélection de l’heure]

Touche de [réglage de l’heure]

5 Touche de [pivotement]
6 Touche de [réglage de la vitesse du ventilateur]
7 Touche de [sens de la soufflerie vers le haut/vers le bas]
8 Touche [Ventilation]
9 Touche [Vérification/Intégré]
0 Touche [Essai de fonctionnement]
A Touche de [filtre]
B Touche [ON/OFF]
C Position du capteur intégré de la température de la pièce

• Ne jamais laisser la commande à distance en plein soleil sinon les données de

• Ne jamais placer d’obstacle devant la partie inférieure droite de la commande

température ambiante risquent d’être erronées.

à distance sinon la lecture des températures ne sera pas correcte.

2

1 Кнопка [Регулирование температуры в помещении]
2 Кнопка [Таймер/постоянно]

3 Кнопка [Выбор операции]
4 Кнопка [Выбор времени]

Кнопка [Настройка времени]

5 Кнопка [жалюзи]
6 Кнопка [Регулировки скорости вентилятора]
7 Кнопка [Направления потока воздуха вверх/вниз]

8 Кнопка [Вентиляция]
9 Кнопка [Проверка/встроенного датчика]
0 Кнопка [Тестовый прогон]
A Кнопка [Фильтр]
B Кнопка [ВКЛ./ВЫКЛ.]
C Позиция встроенного датчика температуры помещения

• Никогда не подвергайте пульт дистанционного управления воздействию
прямых солнечных лучей. Это может привести к неправильным
замерениям температуры в помещении.

• Никогда не помещайте какое-либо препятствие перед нижней правой
секцией пульта дистанционного управления. Это может привести к
неправильному замерению температуры в помещении.

GB

Remote controller-Button

D

Fernbedienungs-Taste

F

Affichage Commande à distance

I

Bottone dell’unità del comando a distanza

E

Controlador remoto-Botón

NL

Display afstandbediening

RU

Кнопка контроллера ДУ

B C D

A

Check

Failure

Power

Operating

PFD-P250VM-A PFD-P500VM-A

Local

TEST RUN

TEMP.

E

Normal

ON/OFF

FILTER

CHECKTEST

TIMER SET TIMER SET

PAR-20MAA PAR-20MAA

E

Normal

B C F G

A

Operating

Power

Local

Check

TEMP.

No.1

Failure

ON/OFF

No.2

Failure

A Spia alimentazione
B Spia funzionamento
C Spia di controllo
D Spia guasto
E Commutatore Normal/Local
F Spia guasto n.1

TEST RUN

FILTER

CHECKTEST

G Spia guasto n.2

* Se il funzionamento Local è disponibile in fase di manutenzione, impostare il

commutatore “Normal/Local” su “Local”. Quindi si illuminerà la spia “Check”.

A Power display lamp
B Operation display lamp
C Check display lamp
D Fault display lamp
E Normal / Local switch
F No.1 Fault display lamp
G No.2 Fault display lamp

* When Local operation is available at maintenance, please set “Normal / Local”

switch to “Local”. Then “Check” lamp will be lit.

A Netzstromkontrolllampe
B Betriebskontrolllampe
C Prüfkontrolllampe
D Fehleranzeigelampe
E Normal-/Lokalschalter
F Fehleranzeigelampe Nr. 1
G Fehleranzeigelampe Nr. 2

* Wenn bei Wartungsarbeiten Lokalbetrieb verfügbar ist, bitte den Normal-/Lokal-

schalter auf “Lokal” einstellen, danach leuchtet die “Check” (Prüf)-Lampe.

A Témoin d’alimentation
B Témoin de fonctionnement
C Témoin de contrôle
D Témoin de panne
E Commutateur normal / local
F Témoin d’erreur n°1
G Témoin d’erreur n°2

* Si le fonctionnement en mode local est disponible pour la maintenance, placer

le commutateur “Normal / Local” sur “Local”. Le témoin “Check” s’allume.

A Indicador de alimentación
B Indicador de funcionamiento
C Indicador de comprobación
D Indicador de avería
E Interruptor Normal / Local
F Indicador de avería N° 1
G Indicador de avería N° 2

* Cuando esté disponible el funcionamiento Local durante el mantenimiento,

ajuste el interruptor “Normal / Local” a “Local”. A continuación, se encenderá el
indicador “Check”.

A Voedingslampje
B Bedieningslampje
C Controlelampje
D Storingslampje
E Schakelaar “Normal/Local”
F Storingslampje 1
G Storingslampje 2

* Wanneer bij onderhoud lokale bediening mogelijk is, stelt u de schakelaar “Nor-

mal/Local” op Local. Het controlelampje zal gaan branden.

A Индикатор “Power” (Питание)
B Индикатор “Operation” (Работа)
C Индикатор “Check” (Проверка)
D Индикатор “Fault” (Неисправность)
E Переключатель “Normal/Local” (Нормальный/Местный)
F Индикатор “No.1 Fault” (Неисправность N° 1)
G Индикатор “No.2 Fault” (Неисправность N° 2)

* Если доступен режим Local, то, пожалуйста, переведите переключатель

“Normal/Local” в положение “Local”. Затем загорится индикатор “Check”.

3

[Fig. A]

B

A

[Fig. B-1]

Parallel
Pulley
Cast iron pulley

K (minutes)

10 or less

Remarks

Equivalent to 3 mm displacement per meter.

K

K

K

SWC

C

A Address board
B Control board
C Address board
D Option: Inlet temperature control
E Standard: Outlet temperature control

SWC

D

K

K

E

[Fig. B-2]

A Deflection load (W) 3 - 4kg

= 5mm

4

Contents

1. Safety precautions ...................................................................................... 5

1.1. Installation ................................................................................. 5

1.2. During operation ........................................................................ 5

1.3. Disposing of the unit .................................................................. 6

2. Names and functions of various parts ........................................................ 6

3. How to operate ........................................................................................... 6

3.1. ON/OFF ..................................................................................... 6

3.2. Selecting operation .................................................................... 7

3.3. Room temperature adjustment .................................................. 7

3.4. Time setting ............................................................................... 7

3.5. Timer setting .............................................................................. 7

3.6. Selecting Normal and Check Operation ................................... 8

3.7. Fault Reset ............................................................................... 8

3.8. Others ........................................................................................ 8

1. Safety precautions

s Before operating the unit, make sure you read all the “Safety

precautions”.

s “Safety precautions” lists important points about safety.

Please be sure to follow them.

Symbols used in the text

Warning:

Describes precautions that should be observed avoid the risk of injury or
death to the user.

Caution:

Describes precautions that should be observed to prevent damage to the
unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This symbol is

displayed on the main unit label.) <Color: yellow>

: Beware of electric shock. (This symbol is displayed on the main unit label.)

<Color: yellow>

Warning:

Carefully read the labels affixed to the main unit.

1.1. Installation

s After you have read this manual, keep it and the Installation Manual in a

safe place for easy reference whenever a question arises. If the unit is
going to be operated by another person, make sure that this manual is
given to him or her.

Warning:

• The unit should not be installed by the user. Ask the dealer or an author­ized company to install the unit. If the unit is installed improperly, water
leakage, electric shock or fire may result.

• Use only accessories authorized by Mitsubishi Electric and ask your
dealer or an authorized company to install them. If accessories are in­stalled improperly, water leakage, electric shock or fire may result.

• The Installation Manual details the suggested installation method. Any
structural alteration necessary for installation must comply with local
building code requirements.

• Never repair the unit or transfer it to another site by yourself. If repair is
performed improperly, water leakage, electric shock or fire may result. If
you need to have the unit repaired or moved, consult your dealer.

• The appliance is not intended for use by young children or infirm per­sons without supervision.

• Young children should be supervised to ensure that they do not play
with the appliance.

1) Outdoor unit

Warning:

• The outdoor unit must be installed on a stable, level surface, in a place
where there is no accumulation of snow, leaves or rubbish.

• Do not stand on, or place any items on the unit. You may fall down or the
item may fall, causing injury.

4. “Failure” Display Lamps .............................................................................. 8

5. Control of Indoor Unit Inlet or Outlet Temperature ...................................... 8

6. The smart way to use ................................................................................. 8

7. Caring for the unit ....................................................................................... 8

8. Troubleshooting ........................................................................................... 9

9. Installation, transferring works, and checking ............................................. 9

10. Checking Drainage ................................................................................... 10

11. Checking V Belts....................................................................................... 10

12. Cleaning the Indoor Unit Heat Exchanger ................................................ 10

13. Greasing the Fan Bearings ....................................................................... 10

14. When the Unit is to be out of Use for a Long Time ................................... 10

15. Periodic Checks ........................................................................................ 11

16. Specifications ............................................................................................ 12

17. Warranty and Servicing ............................................................................ 12

Caution:

The outdoor unit should be installed in a location where air and noise emit­ted by the unit will not disturb the neighbours.

2) Indoor unit

Warning:

The indoor unit should be securely installed. If the unit is loosely mounted, it
may fall, causing injury.

3) Remote controller

Warning:

The remote controller should be installed in such a way that children cannot
play with it.

4) Drain hose

Caution:

Make sure that the drain hose is installed so that drainage can go ahead
smoothly. Incorrect installation may result in water leakage, causing dam­age to furniture.

5) Power line, fuse or circuit breaker

Warning:

• Make sure that the unit is powered by a dedicated supply. Other appli­ances connected to the same supply could cause an overload.

• Make sure that there is a main power switch.

• Be sure to adhere to the unit’s voltage and fuse or circuit breaker ratings.
Never use a piece of wire or a fuse with a higher rating than the one
specified.

6) Grounding

Caution:

• The unit must be properly grounded. Never connect the grounding wire
to a gas pipe, water pipe, lightning conductor or telephone grounding
wire. If the unit is not grounded properly, electric shock may result.

• Check frequently that the ground wire from the outdoor unit is properly
connected to both the unit’s ground terminal and the grounding elec­trode.

1.2. During operation

Caution:

• Do not use any sharp object to push the buttons, as this may damage the
remote controller.

• Do not twist or tug on the remote controller cord as this may damage the
remote controller and cause malfunction.

• Never remove the upper case of the remote controller. It is dangerous to
remove the upper case of the remote controller and touch the printed
circuit boards inside. Doing so can result in fire and failure.

• Never wipe the remote controller with benzene, thinner, chemical rags,
etc. Doing so can result in discoloration and failure. To remove heavy
stains, soak a cloth in neutral detergent mixed with water, wring it out
thoroughly, wipe the stains off, and wipe again with a dry cloth.

• Never block or cover the indoor or outdoor unit’s intakes or outlets. Tall
items of furniture underneath the indoor unit, or bulky items such as
large boxes placed close to the outdoor unit will reduce the unit’s effi­ciency.

GB

D

F

E

INL

PGRRUTR

5

• Ensure that the drain trap is properly water-sealed.

- If the drain trap is modified, or is not water-sealed, the trap will not function
and a water leak may occur. Inject water into the hose during the periodic
check (six-monthly) to check water-sealing.

Warning:

• Do not splash water over the unit and do not touch the unit with wet
hands. An electric shock may result.

• Do not spray combustible gas close to the unit. Fire may result.

• Do not place a gas heater or any other open-flame appliance where it will

be exposed to the air discharged from the unit. Incomplete combustion
may result.

Warning:

• Do not remove the front panel or the fan guard from the outdoor unit
when it is running. You could be injured if you touch rotating, hot or high­voltage parts.

• Never insert fingers, sticks etc. into the intakes or outlets, otherwise in­jury may result, since the fan inside the unit rotates at high speed. Exer­cise particular care when children are present.

• If you detect odd smells, stop using the unit, turn off the power switch
and consult your dealer. Otherwise, a breakdown, electric shock or fire
may result.

• When you notice exceptionally abnormal noise or vibration, stop opera­tion, turn off the power switch, and contact your dealer.

GB

• Do not over-cool. The most suitable inside temperature is one that is
within 5

• Do not leave handicapped people or infants sitting or standing in the path

D

• Do not direct the airflow at plants or caged pets.

• Ventilate the room frequently. If the unit is operated continuously in a

°C of the outside temperature.

of the airflow from the unit. This could cause health problems.

Caution:

closed room for a long period of time, the air will become stale.

F

In case of failure

Warning:

• Never remodel the unit. Consult your dealer for any repair service. Improper
repair work can result in water leakage, electric shock, fire, etc.

• If the remote controller displays an error indication, the unit does not
run, or there is any abnormality, stop operation and contact your dealer.
Leaving the unit as it is under such conditions can result in fire or failure.

• If the power breaker is frequently activated, get in touch with your dealer.
Leaving it as it is can result in fire or failure.

• If the refrigeration gas blows out or leaks, stop the operation of the unit,
thoroughly ventilate the room, and contact your dealer. Leaving the unit
as it is can result in accidents due to oxygen deficiency.

When the unit is not to be used for a long time

• If the unit is not to be used for a long time due to a seasonal change, etc.,
run it for 4 - 5 hours with the air blowing until the inside is completely dry.
Failing to do so can result in the growth of unhygienic, unhealthy mold in
scattered areas throughout the room.

• When it is not to be used for an extended time, keep the [power supply]
turned OFF.
If the power supply is kept on, several watts or several tens of watts will
be wasted. Also, the accumulation of dust, etc., can result in fire.

• Keep the power switched ON for more than 12 hours before starting op­eration. Do not turn the power supply OFF during seasons of heavy use.
Doing so can result in failure.

1.3. Disposing of the unit

Warning:

When you need to dispose of the unit, consult your dealer. If pipes are re­moved incorrectly, refrigerant (fluorocarbon gas) may blow out and come
into contact with your skin, causing injury. Releasing refrigerant into the
atmosphere also damages the environment.

2. Names and functions of various parts

Attachment and detachment of filter

E

Caution:

• In removing the filter, precautions must be taken to protect your eyes
from dust. Also, if you have to climb up on a stool to do the job, be careful
not to fall.

INL

• Turn off the power supply when the filter is changed.

3. How to operate

A

PGRRUTR

C

Local

Normal

Before starting operation

• Start running after the “H0” display has disappeared. The “H0” display briefly
appears on the room temperature display (max. 3 minutes) when the power is
turned on and after a power failure. This does not indicate any failure of the
unit.

• The operation modes of the indoor units’ cooling operation, dry operation, and
heating operation are different from those of the outdoor units.
When the operation is started with cooling/dry (heating) and other indoor units
connected to the counterpart outdoor units are already running in the same
operation mode, the remote control displays “
the operation comes to stop, and you cannot get a desired mode. When this
occurs, you will be notified by the “
liquid crystal display of the remote controller. Set to the operation mode of
other indoor unit by the operation switch button.

C

E

1

3

2

TEMP.

PAR-20MAA

TIMER SET

4

” or “ ” (“ ”) mode. However,

” or “ ” (“ ”) display that flashes in the

TEST RUN

ON/OFF

FILTER

CHECK TEST

6

87

The above does not apply to the models that simultaneously run both the cool­ing operation and heating operation.

• The outdoor units stop when all the indoor units connected to the counterpart
outdoor units stop.

• During heating operation, even if the indoor unit is set to operation while the
outdoor unit is in defrosting operation, operation starts after the defrosting op­eration of the outdoor unit has ended.

3.1. ON/OFF

B

Start an operation

1. Press the

Operation lamp V lights up and operation starts.

BB

B [ON/OFF] button

BB

Stop an operation

1. Press the

Operation lamp goes off and operation stops.

• Once the buttons have been set, pressing of the [ON/OFF] button only can
repeat the same operation thereafter.

• During operation, the operation lamp above the [ON/OFF] button lights up.

Caution:

Even if the operation button is pressed immediately after the operation is
once stopped, operation is not restarted for about 3 minutes. This function
protects the machine. It automatically starts operation after the lapse of ap­proximately 3 minutes.

BB

B [ON/OFF] button again

BB

6

3.2. Selecting operation

When selecting operation

1. Press the

Consecutive press of the selecting operation button switches the operation
over to E “
check the display.

For cooling

Press the

For dry

Press the

• The indoor fan turns to the low-speed operation, disabling the change of fan
speed.

• Dry operation cannot be carried out at a room temperature of less than 18 °C.

For fan

Press the

• The fan operation functions to circulate the air in the room.

• The temperature of the room cannot be set by fan operation.

Caution:

Never expose your body directly to cool air for a long time. Excessive expo­sure to cool air is bad for your health, and should therefore be avoided.

Dry operation

The dry is a microcomputer-controlled dehumidifying operation which controls ex­cessive air-cooling according to the room temperature of your choice. (Not usable
for heating.)

1. Until reaching room temperature of your choice
The compressor and indoor fan function is linked motion according to the change
of the room temperature and automatically repeat ON/OFF.

2. When reaching room temperature of your choice
Both the compressor and indoor fan stop.
When stop continues for 10 minutes, the compressor and indoor fan are oper­ated for 3 minutes to keep the humidity low.

Caution:

• When the unit is used together with burners, thoroughly ventilate the
area. Insufficient ventilation can result in accidents due to oxygen defi­ciency.

• Never place a burner at a place where it is exposed to the airflow from the
unit.
Doing so can result in imperfect combustion of the burner.

• The microcomputer functions in the following cases:

• The fan is not moving at the set speed.

- In some models, the system switches over to faint airflow when the tempera-

33

3 [selecting operation] button

33

,” “ ,” “ ,” (“ ”), and (“ ”). For the contents of operation,

33

3 [selecting operation] button and bring up the “ ” display.

33

33

3 [selecting operation] button and bring up the “ ” display.

33

33

3 [selecting operation] button and bring up the “ ” display.

33

ture of the room reaches the set temperature. In other cases, it stops to
prevent any cool air from escaping during the defrosting operation.

Caution:

When the current time is not yet set, the “CLOCK (current time)” display
flashes, disabling the setting of timer operation.

44

2. Set the current time by pressing the

• The time cannot be set while the C “timer on” is displayed.

• While the A “CLOCK” time is displayed, press the time setting 4

buttons and set the time.

• The setting advances one minute every time the 4
once, and retrogresses one minute every time the 4
once.

When respective 4 / buttons are pressed continuously, the time
display goes fast forward. It advances in the order of 1 minute unit - 10 minute
unit - one hour unit.

• About 10 seconds after the button operation has been completed, the C “cur­rent time” and A “CLOCK” displays disappear.

4

44

or button

/

button is pressed

button is pressed

Caution:

• Remote controller is equipped with a simplified clock with a precision of
about + or - one minute per month.

• The time must be readjusted (reset) every time the unit is subjected to a
power stop of the unit or a power failure.

3.5. Timer setting

• If the timer is set, the unit starts (stops) at the set time, and the time mode is
terminated.

• When you wish to confirm the starting and ending time, press the 4 [time
selection] button while C “

Function of timer

On-timer

Set the on-timer for the time the working day begins in your company.
When the set start time arrives, the unit starts operation.

Off-timer

Use the off-timer as a reminder to turn off the unit. When the set end-work time
arrives, the unit stops operation.

There are three methods for using the timer.

1. ON/OFF Timer When setting both starting and ending time

2. On-timer When only setting the starting time

3. Off-timer When only setting the ending time

Display example of timer setting

” is displayed.

(Ending time is set to “ - - : - - ”)

(Starting time is set to “ - - : - - ”)

ON OFF

ON OFF

GB

D

F

E

INL

3.3. Room temperature adjustment

To change room temperature

Press the
perature of your choice.

Pressing
If the pressing is continued, the setting continues to change by 1 °C.

• Indoor temperature can be set within the following range.

• It is impossible to set the room temperature by the air-blow operation.

* The range of room temperature display is 8 - 39 °C. Outside this range, the

11

1 [room temperature adjustment] button and set the room tem-

11

or once changes the setting by 1 °C.

Cooling/dry: 14 - 30 °C

display flashes either 8 - 39 °C to inform you if the room temperature is lower or
higher than the displayed temperature.

3.4. Time setting

• Set the current time after turning ON the power of the unit or after restoration
from a power failure.

• It can be set regardless of the operation of the indoor unit.

• During the time operation, the time-setting button becomes void, disabling time

setting.

1. Press the
display

• Every time it is pressed, the display changes.

CLOCK

44

4 [time selection] button and bring up the

44



“current



time”




ON



“timer start



time”




OFF



“timer end



time”




AA

A “current time”

AA

(no display)

The example shows a timer set for operation start at 8:00 and end at 17:00.

1. Press the

2. Press the
display

3. Press the
starting time

When using it as an off-timer, set the starting time to “ - - : - - ”.
The “ - - : - - ” is displayed next to 23:50.

4. Press the
display

5. Press the
time

When using it as an on-timer, set the ending time to “ - - : - - ”.
The “ - - : - - ” is displayed next to 23:50.

6. Press the

Bringing up the C “

Every time the 4
it advances (or retrogresses) by 10 minutes.
If the button is pressed continuously, it advances (or retrogresses) continuously.
First set the hour digit and then set the minute digit.
When the ON/OFF timer mode is set, you can run (on-timer) or stop (off-timer)
operation by pressing the B [ON/OFF] button even when there is remaining time.

22

2 [timer/continuous] button and bring up the

22

44

4 [time selection] button and bring up the

44

44

4

( ) button of the

44

44

4 [time selection] button and bring up the

44

44

4

( ) button of the [time switch] and set the ending

44

22

2 [timer/continuous] button and bring up the

22

” display completes the setting.

( ) button of the 4 [timer selection] is pressed once,

44

4 [time selection] and set the

44

CC

C no display

CC

AA

A “Timer start time”

AA

AA

A “Timer end time”

AA

CC

C “

” display

CC

Release

Press the

22

2 [timer/continuous] button and disappear the “ ” display.

22

PGRRUTR

7

3.6. Selecting Normal and Local Operation

Selecting Local operation

Set the Normal/Local switch C to local.
Start and stop is only possible with the remote controller (remote ON/OFF input
disabled) when Local is selected, and faults occurring during checks are not dis­played with remote output.

3.7. Fault Reset

Reset when a fault display lamp is lit

Press the ON/OFF button B.
The unit stops and the fault is reset.

* When repairs by the retailer or a specialist technician are complete, ensure

that the unit is safe, and reset. The customer should not engage in repairs.

Caution:

• The unit cannot be stopped in the Normal mode. Select the Local opera­tion mode and press the switch on the remote controller. Note that if the
SW 1 - 10 on the indoor unit control board are ON (ie remote ON/OFF
input not used) ON/OFF is also possible from the remote controller in the
Normal mode.

GB

4. “Failure” Display Lamps

• Remote ON/OFF input and ON/OFF from the central controller (optional)

are disabled in the Local operation mode.

• See the central controller users manual for details of ON/OFF from the
central controller (optional) and input of temperature settings.

• Selecting ON/OFF from the remote controller requires a few seconds.
This is not a fault.

• Following reset after a power failure, the unit begins operation again au­tomatically, and ‘HO’ appears on the MA remote controller display after
an interval of approximately 15 seconds. The MA remote controller can­not be used during this interval. Turn power OFF with the earth leakage
breaker to stop the unit in an emergency.

3.8. Others

CENTRALLY CONTROLLED

CHECK

NOT AVAILABLE

: Displayed when control is executed by a separately

sold centralized control unit, etc.

: This displays indication when some abnormality oc-

curs in the unit.

: When a button is pressed for any function which the

indoor unit cannot perform, this display flashes con­currently with the display of that function.

PFD-P250VM-A

D

Power

PFD-P500VM-A

Operating

Check

The diagram at left shows an example of a fault in

Failure

a refrigerant system.

* If both the “Operating” and “Failure” lamps are lit, either a fault has developed

* A refrigerant system is operating normally if the associated fault display lamps

F

No.1

Operating

Power

5. Control of Indoor Unit Inlet or Outlet Temperature

E

Either of the above methods of temperature control may be selected with this model.
The method of control is selected with the switch SWC on the address board in­side the indoor unit controller shown in the Fig. A.
When the unit is shipped from the factory it is set to outlet temperature control

INL

(SWC set to ‘Standard’).
Change the method of control by setting SWC on the address board inside the
controller as follows.

Inlet temperature control: Set to “Option”.
Outlet temperature control: Set to “Standard”.

Check

Failure

No.2

Failure

6. The smart way to use

Even minimal steps to care for your unit can help make its use far more

PGRRUTR

effective in terms of air-conditioning effect, electricity charges, etc.

Clean the filter thoroughly

• If the screen of the air filter becomes clogged, the airflow and air-conditioning
effect can be significantly reduced.
Further, if the condition is left unattended, failure can result. It is particularly
important to clean the filter at the beginning of the cooling and heating sea­sons. (When profuse dust and dirt have accumulated, clean the filter thor­oughly.)

Prevent intrusion of heat during air-cooling

• To prevent the intrusion of heat during cooling operation, provide a curtain or a

Carry out ventilation sometimes

• Since the air periodically gets dirty in a room that is kept closed for a long time,

in the unit and it has stopped operating, or it is operating in the emergency
mode.
Note the unit number and error code appearing on the panel, and contact your
serviceman.

are extinguished.

[Fig. A] (P.4)

A Address board B Control board
C Address board D Option: Inlet temperature control
E Standard: Outlet temperature control

blind on the window to block out direct sunlight. Also, do not open the entrance
or exit except in cases of dire necessity.

ventilation is sometimes necessary. When gas appliances are used together
with the unit, special precautions must be taken. If the “LOSSNAY” ventilation
unit developed by our company is used, you can perform ventilation with less
waste. For details on this unit, consult with your dealer.

7. Caring for the unit

Always have filter maintenance performed by a service person.
Before care-taking, turn the power supply OFF.

Caution:

• Before you start cleaning, stop operation and turn OFF the power supply.
Remember that the fan is rotating inside at high speed, posing a serious
risk of injury.

• Indoor units are equipped with filters to remove the dust of sucked-in air.
Clean the filters using the methods shown in the following sketches. (The
standard filter should normally be cleaned once a week, and the long-life
filter at the beginning of each season.)

• The life of the filter depends on where the unit is installed and how it is
operated.

8

How to clean

• Clear dust away lightly or clean it up with a vacuum cleaner. In the case of
severe staining, wash the filter in lukewarm water mixed with dissolved neutral
detergent or water, and then rinse off the detergent completely. After washing,
dry it and fix it back into place.

Caution:

• Do not dry the filter by exposing it to direct sunlight or warming it using
fire, etc. Doing so can result in the deformation of the filter.

• Washing it in hot water (more than 50

Caution:

Never pour water or flammable sprays onto the unit. Cleaning using these
methods can result in the failure of the unit, electric shock, or fire.

°C) can also result in deformation.

8. Troubleshooting

Before you ask for repair service, check the following points:

State of Machine

It does not run.

Air flows out but it does
not cool enough.

Cool air does not come
out.

It runs briefly, but soon
stops.

Remote Controller
“'” display is not lit up
No display appears even
when the [ON/OFF] but­ton is pressed.

The liquid crystal display
shows that it is in the
state of operation.

The liquid crystal display
shows that it is in opera­tion.

The “check” and check
code flashes on the liquid
crystal display.

Power failure
The power supply is turned OFF.
The fuse in the power supply is gone.
The earth leakage breaker is gone.

Improper temperature adjustment

The filter is filled with dust and dirt.

There are some obstacles at the air inlet and outlet of
the indoor and outdoor units.
Windows and doors are open.

The restart-preventing circuit is in operation for 3 min­utes.

There are some obstacles at the air inlet and outlet of
the indoor and outdoor units.

The filter is filled with dust and dirt.

Cause

Press the [ON/OFF] button after power restoration.

Troubleshooting

Turn the power supply ON.
Replace fuse.
Put in the earth leakage breaker.
After checking the set temperature and inlet temperature
on the liquid crystal display, refer to [Room temperature
adjustment], and operate the adjustment button.
Clean up the filter.
(Refer to [Caring for the machine].)

Remove.

Close.
Wait for a while.
(To protect the compressor, a 3-minute restart-preventing
circuit is built into the indoor unit. Therefore, there are occa­sions sometimes when the compressor does not start run­ning immediately. There are cases when it does not run for
as long as 3 minutes.)

Rerun after removal

Rerun after cleaning the filter. (Refer to [Caring for the ma­chine].)

GB

• If operation stops due to a power failure, the [restart-preventing circuit at power failure] operates and disables unit operation even after power restoration. In this case,
press the [ON/OFF] button again and start operation.

If malfunctions persist after you have checked the above, turn the power supply OFF and contact your dealer with information about the product name, the nature of the
malfunction, etc. If the display of “[check]” and (4 digit) check code flashes, tell the dealer contents of the display (check code). Never attempt to repair by yourself.

The following symptoms are not unit failures:

• The air blown out from the unit can sometimes give off odors. This is due to cigarette smoke contained in the air of the room, the smell of cosmetics, the walls, furniture,
etc., absorbed in the unit.

• A hissing noise can be heard immediately after the unit is started or stopped. This is the sound of the refrigeration flowing inside the unit. This is normal.

• The unit sometimes snaps or clicks at the beginning or end of cooling operation. This is the sound of friction on the front panel and other sections due to expansion and

contraction caused by temperature change. This is normal.

• A white mist of steam may be emitted from the indoor unit when operation commences at high indoor temperature or humidity.

9. Installation, transferring works, and checking

Regarding place for installation

Consult with your dealer for details on installation and transferring the installation.

Caution:

Never install the unit where there is a risk of leakage of flammable gas.
If gas leaks and accumulates around the unit, fire can result.

Never install the unit at the following place:

• where there is a lot of machine oil

• near the ocean and beach areas where there is salt air.

• where humidity is high

• where there are hot springs nearby

• where there is sulphurous gas

• where there is a high-frequency processing machinery (a high-frequency welder,

etc.)

• where acid solution is frequently used

• where special sprays are frequently used

• Install the indoor unit horizontally. Otherwise, water leakage can result.

• Take sufficient measures against noise when installing the units at hospitals or

communication-related businesses.

If the unit is used in any of the above-mentioned environments, frequent opera­tional failure can be expected. It is advisable to avoid these types of installation
sites.
For further details, consult with your dealer.

Regarding electrical work

Caution:

• The electrical work must be undertaken by a person who is qualified as
an electrical engineer according to the [technical standard respecting
electrical installation], [internal wiring rules], and the installation instruc­tion manual with the absolute use of exclusive circuits. The use of other
products with the power source can result in burnt-out beakers and fuses.

• Never connect the grounding wire to a gas pipe, water pipe, arrester, or
telephone grounding wire. For details, consult with your dealer.

• In some types of installation sites, the installation of an earth leakage
breaker is mandatory. For details, consult with your dealer.

Regarding transfer of installation

• When removing and reinstalling the unit when you enlarge your home, re­model, or move, consult with your dealer in advance to ascertain the cost of
the professional engineering work required for transferring the installation.

Caution:

When moving or reinstalling the unit, consult with your dealer. Defective in­stallation can result in electric shock, fire, etc.

Regarding noise

• In installing work, choose a place that can fully bear the weight of the unit, and
where noise and vibration can be reduced.

• Choose a place where cool or warm air and noise from the outdoor air outlet of
the unit does not inconvenience the neighbors.

• If any alien object is placed near the outdoor air outlet of the unit, decreased
performance and increased noise can result. Avoid placing any obstacles ad­jacent to the air outlet.

• If the unit produces any abnormal sound, consult with your dealer.

Maintenance and inspection

• If the unit is used throughout several seasons, the insides can get dirty, reduc­ing the performance.

Depending upon the conditions of usage, foul odors can be generated and
drainage can deteriorate due to dust and dirt, etc.

D

F

E

INL

PGRRUTR

9

10. Checking Drainage

Check that water is able to drain smoothly. If water is unable to drain smoothly, check for blockage of the grooves in the drain pan and the piping trap by paper particles etc.
Carefully clean the grooves in the drain pan and the piping trap to prevent further blockage.
Ensure that the trap is always water-sealed.

11. Checking V Belts

1. Adjust parallel of the fan and motor pulleys in accordance with Fig.B-1.

2. Adjust the tension of each V belt so that the deflection load (W) at the optimum deflection (r= 5 mm) is as shown in Fig.B-2.

3. It is recommended that the belt be adjusted to the optimum tension as shown in Fig.B-2 after it has been run-in on the pulley (24 - 28 hours operation). When a new belt
is fitted, adjust the deflection load (W) to approximately 1.3 times the maximum value.

4. It is recommended that the V belt be replaced every 8000 hours. It has reached the end of its life when it has stretched by approximately 2% (including an initial stretch
of approximately 1%) of the initial circumference.

[Fig. B-1] (P.4)

GB

Parallel
Pulley
Cast iron pulley

[Fig. B-2] (P.4)

A Deflection load (W) 3 - 4kg

K (minutes)

10 or less

Remarks

Equivalent to 3 mm displacement per meter.

12. Cleaning the Indoor Unit Heat Exchanger

When dust adheres to the heat exchanger after the unit has been used for a long time, reducing the efficiency of heat exchange, and resulting in deterioration of cooling

D

performance.
Please ask your dealer how to clean it.

13. Greasing the Fan Bearings

F

Replenish bearing grease annually to ensure that the bearings may be used with
confidence a long time. Such replenishment extends the life of both the grease and
the bearings. Use the following grease.

Shell
Quantity

Albania Grease 2

10.5 g

E

14. When the Unit is to be out of Use for a Long Time

<When the Unit is to be out of Use for a Long Time>

(1) Run the unit in Fan mode for a period of 4 - 5 hours to dry the indoor unit.

INL

(2) Turn the indoor unit power OFF.

<Preparations for Reuse>

ss

s Check the following (1) - (4), then turn the power supply on.

ss

(1) Clean and fit the filter.
(2) Check that the inlets and outlets on the indoor and outdoor units are not blocked.
(3) Check that the earth wire is connected. The earth wire may be connected with the indoor unit as well in some cases.

Caution:

PGRRUTR

Do not connect the earth wire to gas pipes, water pipes, lightning rods, or telephone earth wires. If earthing work is not conducted carefully it may result in
electric shock, smoke, flame, or mis-operation due to electrical noise. Please ask your dealer before beginning earthing work.

(4) Check to ensure that the drain hose is not bent, the tip is not raised or blocked, and that the trap has not been damaged, and fill the trap with water.
(5) Turn the power supply on before 12 hours or more.

10

15. Periodic Checks

Table 1 Maintenance and Checks

Unit Parts

Fan motor

Bearing

Fan belt

Air filter

Drain pan

Indoors

Drain hose

Linear
expansion
valve
Heat
exchanger

Float switch

Display
lamp

Compres­sor

Fan motor

Linear
expansion
valve
Heat
exchanger

Outdoors

(air-cooled)

Pressure
switch

Cooling fan
for inverter

ss

s Relocating or scrapping the unit.

ss

• Specialist skills are required for relocation of the unit. Please contact your retailer or a consultant specified by the manufacturer.

• The coolant must be recovered before the unit is scrapped. Please contact your retailer or a consultant specified by the manufacturer.

Check frequency

6 months

3 months

6 months

1 year

6 months

1 year

6 months

1 year

• Check operating noise.

Checks

• Measure insulation resistance.

• Check operating noise.

• Check belt tension.

• Visually check for wear and damage.

• Check operating noise.

• Visually check for contamination and

damage.

• Clean

• Check for contamination and blockage

of drain.

• Check for loose mounting screws.

• Check for deterioration.

• Check sealing of hose (inject water into

hose).

• Check for contamination and blockage
of drain.

• Check for deterioration.

• Check action using operation data.

• Check for blockage, contamination, and

damage.

• Check appearance.

• Check for adhesion of foreign matter.

• Check lighting of lamp.

• Check operating noise.

• Measure insulation resistance.

• Visually check for loose terminals.

• Check operating noise.

• Measure insulation resistance.

• Check action using operation data.

• Check for blockage, contamination, and

damage.

• Check for broken wiring, deterioration,
and unconnected connectors.

• Measure insulation resistance.

• Check operating noise.

• Measure insulation resistance.

• Check fault history.

• No abnormal noises.

• Insulation resistance 1 MΩ or more.

• No abnormal noises.

• Deflection load of 3 - 4kg per belt. Opti-

mum deflection of 5mm.

• Maximum stretch in belt circumference
of 2% in comparison to initial circumfer­ence.

• No wear or damage.

• No abnormal noises.

• No contamination or damage.

• No contamination or blockage.

• No loose screws.

• No significant deterioration.

• No contamination or blockage.

• No significant deterioration.

• Appropriate temperature change in re-

lation to change in control opening.

• No blockage, contamination or damage.

• No deterioration or broken wiring.

• No foreign matter.

• Lit at output ON.

• No abnormal noises.

• Insulation resistance 1 MΩ or more.

• No loose terminals.

• No abnormal noises.

• Insulation resistance 1 MΩ or more.

• Appropriate temperature change in re-

lation to change in control opening.

• No blockage, contamination or damage.

• No broken wiring, deterioration, or un-

connected connectors.

• Insulation resistance 1 MΩ or more.

• No abnormal noises.

• Insulation resistance 1 MΩ or more.

• No heat-sink heating protection (4230,

4330) in fault history.

Evaluation criteria

Replace if insulation has deteriorated.

Replace if abnormal noises continue de­spite replenishing oil.
Replenish oil annually.
Adjust tension.
Replace if stretch in belt circumference
is 2% or more, or if belt has been in use
for 8000 hours or more.
Replace if belt is worn or damaged.

Clean
Replace if filter is significantly contami­nated or damaged.
Clean if contaminated or blocked.
Tighten screws.
Replace if deterioration is significant.

Clean if contaminated or blocked.
Replace if deterioration is significant.

Replace if the valve itself is the cause of
problems in operation.

Clean

Replace if wiring is broken or deteriora­tion is significant.
Clean if foreign matter present.
Replace lamp if not lit at output ON.

Replace if insulation has deteriorated
while coolant has been circulating.
Tighten terminals if loose.
Replace if insulation has deteriorated.

Replace if the valve itself is the cause of
problems in operation.

Clean

Replace if wiring is broken, shorted, or
has significantly deteriorated, or if insu­lation has deteriorated.
Replace in case of abnormal noises, if
insulation has deteriorated, or if a fault
has occurred.

Maintenance

GB

D

F

E

INL

PGRRUTR

11

16. Specifications

PFD-P·VM-A series

Item
Power source
Cooling capacity*1 kW

Height mm

Dimension Width mm

Depth mm
Net weight kg
Fan Airflow rate (Low-Middle-High) m
Noise level*2 dB(A)
Filter

Dry bulb temperature
Wet bulb temperature

Notes: *1 Cooling capacity indicates the maximum value at operation under the following condition.

Cooling: Indoor: 27 °C DB/19 °C WB Outdoor: 35 °C DB

*2 The operating noise is the data that was obtained in an anechoic room.

• Both indoor and outdoor temperatures assume a relative humidity of 30 - 80%.

• Contact your retailer if the unit is to be used at an outdoor dry bulb temperature of –5°C or lower.

Model

3

/min

Indoor

–

12 °C~24 °C

PFD-P250VM-A

3N~/380-415V (50Hz), 400-415V (60Hz)

28

1895

1200

800
350
160

59

Long life filter

Outdoor

–5 °C~43 °C

–

PFD-P500VM-A

56

1800

480
320

64

GB

17. Warranty and Servicing

ss

s In addition to daily checks (eg cleaning of filters), periodic maintenance and checks by a skilled technician are required to ensure that the unit is maintained

ss

in a good condition for a long period of time, and that it may be used with confidence.

D

Check Frequency for the standard maintenance and checks, and the Maintenance Frequency associated with periodic checks are as follows.

<Maintenance and Check Frequencies>

1. Preventative Maintenance Guidelines

The following maintenance frequencies are a guide to the replacement of parts as based on the results of periodic checks and scheduled frequency of repairs. They do

F

not imply that replacement is always necessary in accordance with the maintenance frequency (except for consumables such as fan belts).
Note that the following does not indicate maintenance periods.

Table 2 Maintenance and Check Frequencies

Unit Parts

E

INL

PGRRUTR

Fan motor
Bearing
Fan belt
Air filter
Drain pan
Drain hose

Indoors

Linear expansion valve
Heat exchanger
Float switch
Display lamp
Compressor
Fan motor
Linear expansion valve
Heat exchanger

Outdoors

Pressure switch

(air-cooled)

Inverter cooling fan

2. Cautions

• The maintenance and check frequencies in the table above are applicable under the following conditions of use.
A. Normal conditions of use, with infrequent starting and stopping (varies with model, however interval of starting and stopping would normally use is generally six times

or less per hour).

B. 24 hours using.

• The maintenance interval may need to be reduced under any of the following conditions.

1 Use under conditions of high temperature or humidity, or in locations in which variations in temperature and humidity are considerable.
2 Use in locations in which power supply variations (e.g. voltage, frequency, waveform distortion) are considerable. Note that the unit cannot be used outside the

allowable range of conditions.

3 Use in locations subject to considerable vibration and shock.
4 Use in an atmosphere containing toxic gases (e.g. dust, salt, sulfuric acid vapor, hydrogen sulfide) or oil mist etc.

• Unexpected events may occur even when periodic checks are implemented based on the check frequency. In such cases the appropriate repairs outside the period of
the warranty are chargeable.

Check frequency

6 months

3 months

6 months

1 year

6 months

1 year

6 months

1 year

Maintenance frequency

40,000 hours
40,000 hours

8,000 hours

5 years
8 years
8 years

25,000 hours

5 years

25,000 hours

8,000 hours
40,000 hours
40,000 hours
25,000 hours

5 years
25,000 hours
40,000 hours

Ordinarily check

䡩

Maintenance check

䡩
䡩
䡩

䡩
䡩
䡩
䡩
䡩
䡩
䡩
䡩
䡩
䡩
䡩
䡩

Remarks

Replenish oil annually.
Consumable part
Check interval are affected by local conditions.

12

HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

WT04232X01

Printed in Japan

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