Mitsubishi Electronics PDFY-NMU-A, PFFY-NRMU-A, PFFY-NEMU-A User Manual
Air-Conditioners For Building Application
INDOOR UNIT
PDFY-NMU-A
PFFY-NEMU-A
PFFY-NRMU-A
OPERATION MANUAL
For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.
MANUEL D’UTILISATION
Pour une utilisation correcte sans risques, veuillez lire le manuel d’utilisation en entier avant de vous servir du climatiseur.
GB
F
GB
Remote controller-Button
F
Touche Commande à distance
GB
Remote controller-Display
F
Affichage Commande à distance
1
2
3
B
A
0
C
456 8 79
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.
ABCD
E
F
G
H
A Current time/Timer
B Centralized control
C Timer ON
D Abnormality occurs
E Operation mode: COOL, DRY, AUTO, FAN, HEAT
F Preparing for Heating mode
G Defrost mode
H Set temperature
I Power ON
J Louver
K Not available function
L Ventilation
M Function setting mode
N Test run mode
O Error check mode
P Filter sign
Q Set effective for 1 hr.
R Sensor position
S Room temperature
T Airflow
U Fan speed
SQTU
R
P
O
N
M
IKLJ
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
température ambiante risquent d’être erronées.
• Ne jamais placer d’obstacle devant la partie inférieure droite de la commande
à distance sinon la lecture des températures ne sera pas correcte.
2
A Heure/Programmateur
B Contrôle centralisé
C Programmateur activé (ON)
D En cas d’anomalie
E Mode de fonctionnement: COOL (REFROIDDISSEMENT), DRY (DÉSHUMIDIFICATION),
AUTO (AUTOMATIQUE), FAN (SOUFFLERIE), HEAT (CHAUFFAGE)
F Préparation pour le mode chauffage
G Mode dégivrage
H Réglage de la température
I Mise sous tension (ON)
J Lucarne
K Fonction non disponible
L Ventilation
M Mode de réglage du fonctionnement
N Mode d’essai de fonctionnement
O Mode de vérification des erreurs
P Signe du filtre
Q Réglage après une heure
R Position du capteur
S Température de la pièce
T Flux d’air
U Vitesse du ventilateur
[Fig. A]
<PDFY-NMU-A>
A
21
<PFFY-NEMU-A, NRMU-A>
In case of rear inlet
A: Filter
Filtre
A: Filter
Filtre
: Air Flow
Flux d’air
: Air Flow
Flux d’air
A
3
Contents
1. Safety precautions ...................................................................................... 4
1.1. Installation ................................................................................. 4
1.2. During operation ........................................................................ 4
1.3. Disposing of the unit .................................................................. 5
2. Names and functions of various parts ........................................................ 5
3. How to operate ........................................................................................... 5
3.1. ON/OFF ..................................................................................... 5
3.2. Selecting operation .................................................................... 5
3.3. Room temperature adjustment .................................................. 6
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:
GB
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
D
unit.
Symbols used in the illustrations
: Indicates an action that must be avoided.
F
E
: 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.
INL
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.
PGRRUTR
• 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.
• Do not use a leak detection additive.
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.
Caution:
The outdoor unit should be installed in a location where air and noise emitted by the unit will not disturb the neighbours.
4
3.4. Fan speed adjustment ............................................................... 6
3.5. Adjustment of up/down airflow direction .................................... 6
3.6. Time setting ............................................................................... 6
3.7. Timer setting .............................................................................. 7
3.8. Others ........................................................................................ 7
4. The smart way to use ................................................................................. 7
5. Caring for the machine ............................................................................... 7
6. Troubleshooting ........................................................................................... 8
7. Installation, transferring works, and checking ............................................. 8
8. Specifications .............................................................................................. 9
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.
• Keep the electric parts away from water (washing water etc.).
- It might result in electric shock, catching fire or smoke.
• When washing the Heat Exchanger and Drain Pan, ensure the Control
Box, Motor and LEV remain dry, using a water proof covering.
• Never drain the washing water for the Drain Pan and the Heat Exchanger
using the Drain Pump Drain separately.
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.
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.
• 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
°C [9 °F] of the outside temperature.
of the airflow from the air-conditioner. This could cause health problems.
Caution:
• Do not direct the airflow at plants or caged pets.
• Ventilate the room frequently. If the unit is operated continuously in a
closed room for a long period of time, the air will become stale.
In case of failure
Warning:
• Never remodel the air conditioner. 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 air conditioner
does not run, or there is any abnormality, stop operation and contact
2. Names and functions of various parts
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 air
conditioner, thoroughly ventilate the room, and contact your dealer. Leaving the unit as it is can result in accidents due to oxygen deficiency.
When the air conditioner is not to be used for a long
time
• If the air conditioner 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.
GB
D
Attachment and detachment of filter
[Fig. A] (P.3)
3. How to operate
A
C
E
1
3
2
4
687
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 air
conditioner.
• 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 “COOL” or “DRY” (“HEAT”) mode.
However, the operation comes to stop, and you cannot get a desired mode.
When this occurs, you will be notified by the “COOL” or “DRY” (“HEAT”) display
that flashes in the liquid crystal display of the remote controller. Set to the
operation mode of other indoor unit by the operation switch button.
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.
B
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.
• Turn off the power supply when the filter is changed.
3.1. ON/OFF
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
3.2. Selecting operation
When selecting operation
1. Press the
Consecutive press of the selecting operation button switches the operation
over to E “COOL” “DRY” “FAN” (“AUTO”), and (“HEAT”). For the contents of
operation, check the display.
33
3 [selecting operation] button
33
For cooling
Press the
33
3 [selecting operation] button and bring up the “COOL” display.
33
For dry
Press the
• The indoor fan turns to the low-speed operation, disabling the change of fan
• Dry operation cannot be carried out at a room temperature of less than 18 °C
33
3 [selecting operation] button and bring up the “DRY” display.
33
speed.
[65 °F].
5
F
E
INL
PGRRUTR
A
C
E
1
3
2
4
687
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.
GB
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
D
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
F
2. When reaching room temperature of your choice
E
33
3 [selecting operation] button and bring up the “FA N” display.
33
Caution:
The compressor and indoor fan function is linked motion according to the change
of the room temperature and automatically repeat ON/OFF.
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.
For heating
Press the
Regarding displays during heating operation “DEFROST”
INL
Displayed only during the defrosting operation.
“STAND BY”
Displayed from the start of heating operation until the moment warm air blows out.
• When the air conditioner is used together with burners, thoroughly ven-
• Never place a burner at a place where it is exposed to the airflow from the
PGRRUTR
• The microcomputer functions in the following cases:
• Air does not blow out when heating starts.
• The fan is not moving at the set speed.
• Air flows out even if operation is stopped.
33
3 [selecting operation] button to bring up the “HEAT” display.
33
Caution:
tilate the area. Insufficient ventilation can result in accidents due to oxygen deficiency.
air conditioner.
Doing so can result in imperfect combustion of the burner.
- To prevent any cool air from escaping, the indoor fan is gradually switched in
sequence from faint airflow/weak airflow/set airflow according to the temperature rise of the blown out air. Wait a moment until the airflow comes out
naturally.
- In some models, the system switches over to faint airflow when the temperature of the room reaches the set temperature. In other cases, it stops to
prevent any cool air from escaping during the defrosting operation.
- Approximately 1 minute after the stop of operation, the indoor fan sometimes
rotates to eliminate extra heat generated by the electric heater, etc. The fan
speed comes to low or high.
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 [2 °F].
• Indoor temperature can be set within the following range.
• It is impossible to set the room temperature by the air-blow operation.
11
1 [room temperature adjustment] button and set the room tem-
11
or once changes the setting by 1 °C [2 °F].
Cooling/dry: 19 °C [67 °F] – 30 °C [87 °F]
Heating: 17 °C [63 °F] – 28 °C [83 °F]
* The range of room temperature display is 8 °C [46 °F] - 39 °C [102 °F]. Outside
this range, the display flashes either 8 °C [46 °F] - 39 °C [102 °F] to inform you
if the room temperature is lower or higher than the displayed temperature.
3.4. Fan speed adjustment
To change fan speed
Every time you press the 6 [fan speed] button once, it switches from the low-
B
speed to high-speed settings successively.
In the electronics dry operation, the indoor fan automatically turns to low-speed
operation. Switching of fan speed is impossible. (Only the display on the remote
controller changes.)
* Every time the fan speed adjustment button is once pressed, the fan speed is
changed.
[PDFY-40 ⋅ 48NMU-A, PFFY-NEMU-A, PFFY-NRMU-A]
Fan speed : 2 stages
Display:
[PDFY-10-32NMU-A]
Fan speed : 4 stages
Display:
(Low)→ (High)
(Low)→ (Mid2)→ (Mid1)→ (High)
3.5. Adjustment of up/down airflow direction
To change the up/down airflow direction
PFFY-NEMU-A
While pulling the blowout grill out toward you, raise the rear, remove it, change the
direction, and set it in place.
Caution:
Avoid putting your hand into the air outlet of the indoor unit any more than
necessary during operation. If you get your hands caught in the metal parts
when adjusting the airflow-direction-adjustment board and blowout grill, or
nip them in the autovane, there is a risk of injury and failure.
3.6. Time setting
• Set the current time after turning ON the power of the air conditioner 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”
AUTO
ON
“timer start
time”
AUTO
OFF
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 “
• 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 “cur-
rent time” and A “CLOCK” displays disappear.
4
44
” is displayed.
or button
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 air conditioner is subjected to a power stop of the air conditioner or a power failure.
“timer end
time”
AA
A “current time”
AA
(no display)
/
button is pressed
button is pressed
6
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