Panasonic CU-M1403KE User manual

Operating
Instructions
MULTI-SPLIT AIR CONDITIONERS
Before using your air conditioner, please read this operation
manual carefully and keep it for future reference.
Outdoor Unit
CU-M1403KE
CU-M1803KE
CU-3M2003KE
Indoor Unit
CS-M903KE
ENGLISH
[357 \\ (0)
DEUTSCH..--.-
ayes
NEDERLANDS
ITALIANO:
Panasonic
F56595

Operating
Instructions
Room
Air
Conditioner
Before using your air conditioner, please read this operation
manual carefully and keep it for future reference.
[CONTENTS]
©
Names
of
Each
Patt
-++<+-s-+ss+seosseassssonsnsedessenesaverensssannsacensnsee
2.3
Remote
Control-Name
of
Each
Part
and
Functions
-----------
4-5
Remote
Control
Preparation
Before
Operation
----+--++++++++++
6-7
Before
Operating
the
Unit
--+:-.-:sssecessesesseseseseenetenenteretenens
8.9
©
Automatic
Operation
---s--ssssssesessssesesteesssseteeseeeseneenenees
10-11
Cooling
Mode
and
Soft
Dry
Mode
Operation
---+-++-++++++++-
12-13
Setting
the
Timer-s-----ssesesseseeseeecsessesseeesseeeneeeeneneenenencenenes
14-16
Convenient
Operation
(Sleep
&
Circulation
Mode)
eect
7.
Airflow
Direction
Adjustment
«+--+:
soseeneensnnnnnees
18-19
Forced
Operation
(When
the
Remote
Control
can’t
be
used)
-----20
©
Care
and
Maintenance
---:::s:sssceseesceseeseeeeeeeeeseerenereenees
21-23
Troubleshooting-Normal
Operation
--+---+-++++++
seaegeneaieeaet
24.25
Troubleshooting-Abnormal
Operation
--++-++++-+++ssssseeeeeeee
+26
-
27
Operation
Hints
---+-+:ss:sssssssesseesessseesesseeeseensensneeesnenneetenenensans
28
is
there
a
problem?
(Call
the
dealer
or
service
center
immediately)
---------
29
ec
e
S
S
HSITONS

Wea
ee
|
Front Panel
Panel Opener Button
(Left And Right Sides)
Horizontal Airflow
Direction Louver
Signal Receptor oOdOo®
Receives the signals from the
remote control.
(Signal received sound: two short
beeps or one long beep)
Operation Indication Lamps
Light up when the air conditioner is in operation.
(Blinks on and off at the start of automatic operation.)
Vertical Airflow Direction
Louver
Air Outlet Vent
(CU-M1803K)
Air Intake Vents
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Teeeadaaecectageandicaned!
SL
Drain Hose
CERT TCETTE
oOuntl
Air Outlet Vent

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Cooling Test Operation Button
Use when installing and moving.
Normally it should not be used.
Forced Operation Button
Use when the remote control cannot be used.
Power switch
Set to "O" (OFF) when not using the air
conditioner for a long time.
Air Filter
Remote Control Remote Control Two R03, UM-4
Holder Panasonic dry-cell
batteries
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Air Cleaning Filters
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Remote Control-Name of Each Part and Functions f of ff OW
Transmits the signals. q
Displays the operation conditions.
| A ita
Sleep Mode Auto Operation Button
Press once for Sleep Mode Auto Operation.
Press once more to cancel
Sleep Mode Auto Operation.
Operation Mode Selection Button
Use to select the operation mode
(AUTOMATIC, COOLING, SOFT DRY &
CIRCULATION).
Airflow Direction Auto—Contro!l Button
Press for Automatic Airflow Direction Operation.
Panasonic
[Separate displays and functions are available when the door is opened.]
Clock button
Use to set the timer to the current time.

Start/Stop Button] (¢ A long beep will sound.)
Operation will start when
the button is pressed, and stop
when the button is pressed again.
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Airflow Volume Selection Button
Press to change the volume of airflow.
| Airflow Direction Manual (* Two short beeps will sound.)
Control Button
Adjusts the airflow direction vertically.
Room Temperature
Setting Button
Use to set the room temperature.
Types of confirmation sound:
¢ Stopping by pressing the (START/STOP) button: a long beep
¢ Cases other than the above: two short beeps
OFF Timer Button
ON Timer Button
Cancellation Button
Program Button
Use to set the timer.
Time Button
Use to adjust timer
| setting and the current time.

Two R03, UM-4 Panasonic dry-cell batteries or equivalent.
Remote Control Preparation Before Operation
Remove the cover from Insert the two batteries. Fix the cover to the
the back of the remote back of the remote control
control. (“12:00” will flash in the
operation display.)
FEOEEN) Gent ae ¢ Ifthe display does not
[OPEN } Gently press the place “ ;
Be
rod
[OPEN]
and
slide
appear
when
the
batteries
the
cover
toward
you.
g
are
inserted,
remove
the
baiteries and insert them
once more.
Cautions regarding the batteries
The batteries can be used for approximately one year.
Do not use rechargeable (Ni-Cd) batteries, because such batteries differ from standard dry cell batteries in
shape, dimensions and performance.
Be sure to replace the batteries with two new batteries of the same type as each other.
Remove the batteries if the air conditioner is not going to be used for an extended period of time.
Press the (Start/Stop } button at the place where the holder is to be
affixed to confirm that there is a beep when the remote control sig-
nals are received by the main unit.
Secure the holder with screws. To put the remote control into
the holder
Insert the remote contro! diagonally from
above, and then press to the back of the
holder.
Remote control holder

HSITONS
Open
the
door
and
Press
the
Time
button
Press
(the
Clock)
press
(the
Clock)
to
set
the
hours
and
button,
and
then
close
"
button.
minutes.
the
remote
control
door.
¢
After
the
batteries
have
been
Press
the
!=!
button
to
ad-
The
letters
or
AM
or
PM
will
light
inserted:
vance
the
time,
and
press
the
up
and
setting
of
the
current
time
PM
“12:00”
will
blink
in
the
button
to
go
back.
will
be
completed.
display.
(The
letters
of
AM
or
PM
will
When changing
the
time:
blink.)
The
letters
of
AM
or
PM will
blink.
(Caution
e The timer uses the current time as a reference.
If the time is not set correctly, correct timer setting will not be possible.
e When the timer is set
The current time display will be cleared.
e About the Remote Control [BA] switch
* This switch is used when two air conditioner units have
been installed in the one room.
¢ Signals cannot be transmitted when the switch is set to
“B,” so always set this switch to “A”.
¢ |f two air conditioners have been installed in the one
room, please consult with your dealer.

Do not use the air condi-
tioner for purposes other
than cooling the room.
Do not use this air conditioner for
other purposes, such as drying
clothes, preserving foods, keeping
animals or cultivating plants.
Do not insert sticks or
other objects into the air
intake and outlet vents.
Be particularly
careful with young
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Do not pull out the power
cord.
Always hold the plug when
removing the power cord.
Damage to the cord may result in
serious electrical shocks.
Operating the remote control:
« Aim at the signal receptor on the room air
conditioner when operating.
¢ Do not drop or throw the remote control.
Make sure that the
signal path is not
obstructed.
* Do not place the remote conirol in a location
that is exposed to direct sunlight or next to a
heating unit or other heat source.
Unit}
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Tie
Avoid exposing the body
directly to a continuous
airflow for long periods.
Be careful of
Use under the following
conditions:
Cooling and Soft Dry:
¢ At setting temperatures
of 20°C or higher
¢ At humidity of 90% or
less
\f the air conditioner operates
continuously under conditions that
are outside these limits, condensa-
tion will form in the air outlet vents
and dripping will occur.
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The maximum distance
at which signals can be
received is about 10 m.

HSIONA
For air conditioners with a power Set the power switch to “I” (ON).
plug, insert the power plug into an
electrical outlet.
Insert securely so that it is not loose.
e |f the air conditioner is not going to be used for an extended period of time
If the power switch is left at “!’ (ON), approximately 2.5 watts of electric power are used even if the main
unit is turned off by remote control.
e If there is a danger of lightning
The air conditioner is provided with a built-in protective device, but the control equipment may be ad-
versely affected depending on the extent of lightning activity.

Automatic Operation
Press
the(Operation
Mode
Selection
Press
the
|
Start/Stop
|
“—”
button
button to select Automatic
Operation.
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¢
The
display
changes
in
the
order
(The
operation
indication
lamp
will
first
blinks
on and off for approximately 20 seconds, and
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aoe
5
6)
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@
then
remain
lighted.)
LED:
GREEN
Colour
each
time
the
button
is
pressed.
¢
If
the(Start/Stop
}“—”
button
is
pressed
once
more, the air conditioner will stop.
\
(The
operation
indication
lamp
will
put
out.)
IX _ Automatic Operation Mode
Cooling Operation Mode
Soft Dry Operation Mode
N/.
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Circulation Operation Mode
—— Automatic Operation ——
e Each time the Operation Mode Selection button is pressed, the
indoor temperature sensor operates to automatically select the
desired operation mode and the setting temperature.
¢ When the room temperature is lower than the setting temperature
during cooling (Cooling Mode) or dehumidifying (Soft Dry Mode),
the
air
conditioner
operation
will
switch
to
circulation
of
air
only.
SOFT
DRY
(Set
to
approx.
24°C)
* |f the air conditioner is not operating as desired, switch to Cooling
Mode operation or Soft Dry Mode operation.
¢ The desired operation mode which is selected will not switch on
the way.
COOLING (Set to approx. 27°C)
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10

@ To change the airflow volume To change the room temperature
to “high” or “low”
* Automatic airflow and three stages of airflow ¢ Press the Room Temperature Setting Button.
volume can be selected with the Airflow Volume :
Selection Button. Press [FI to increase by 2°C.
Press lS) to decrease by 2°C.
Example of display
When increasing
When decreasing
Helpful information
Airflow Volume
(Notes)
The speed of the indoor fan is adjusted automatically
to “High” if the compressor is in operation, and to “Me-
dium” speed if the compressor is stopped.
The air filters and your electric bill.
If the air filters become clogged with dust, the cool-
ing capacity will drop, and 6% of the electricity used
to operate the air conditioner will be wasted.
Be .
wasied!
11
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Cooling Mode and Soft Dry Mode Operation fof fT Tim
Fine adjustments to the room temperature and airflow volume to be made by selecting Cooling Mode or Soft Dry Mode.
After first selecting the mode, just press the Start/Stop button to start operation.
Press the Operation Mode Selection Press the | Start/Stop | “—” button
button to select the desired (The operation indication lamp lights up.)
operation mode.
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* The display changes in the order ° If the (Start/Stop )—” button is pressed once
: more, the air conditioner will stop.
IW 4+*K>BUO>DG@ (The operation indication lamp will put out.)
each time the button is pressed.
IX Automatic Operation Mode
sk
as Cooling Operation Mode
O Soft Dry Operation Mode
G Circulation Operation Mode
Soft Dry Operation
¢ Soft Dry is a very gentle cooling operation consisting primarily of
dehumidifying. lt does not lower the room temperature very -
much.
* The operation will be standard cooling until the room tempera-
ture reaches the setting temperature, and then operation will
switch to Soft Dry.
The airflow will automatically change to Low.
¢ Ifthe room temperature is higher than the setting temperature,
the operation will return to standard cooling by the setting fan
speed.
¢ During Soft Dry operation, the fan of the indoor unit will operate
and stop at 4-second intervals, and operation will be switched on
and off for up to 10 minutes on and 6 minutes off,
Cooling operation
until room
temperature —
reaches the
setting temperature
Low airflow
amount
When room temperature reaches the setting
temperature, operation will switch to Soft Dry.
Setting temperature
12

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To change the airflow volume
a
4 feo
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SESE
A*OG °C
Cea
ou
e Automatic airflow and three stages of airflow
volume can be selected with the airflow volume
selection button.
— Automatic Airflow Volume ——
[During cooling]
Operation will be at a high fan speed until the room
temperature reaches the temperature set by means
of the remote control.
Once the setting temperature is reached, the opera-
tion will then switch to a low fan speed.
(Notes)
The speed of the indoor fan is adjusted automati-
cally to “High” if the compressor is in operation, and
to “Medium” speed if the compressor is stopped. .
—— Circulation Operation Mode ——
@ To change the room temperature
¢ Press the F) of the room temperature setting
button to increase the temperature, and press
the to decrease the temperature by 1°C each
step.
(The range of temperature is 20°C - 30°C.)
Sis ee eta at SS ae Sut
The air at the top of the room will be circulated
downward, thus providing a uniform room tem-
perature throughout the room without compressor
operation. In cold weather, operation of this mode
will circulate the heated air (heated by Heater for
instance) evenly throughout the room.
13
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Setting
the
Timer
|
Baail|
The same timer operation is possible automatically from the next day, orice the timer is set.
ie : This is useful for saving electricity costs incurred by igen to
(Example) To turn off the air conditioner at 11:30 PM.| turn off the air conditioner.
Press the (OFF Timer Set the hours and Press the
button. minutes. button.
( The OFF Timer “©> ©” will blink) | * Press the | button to ad- (The timer indication lamp will
vance the time, and press the light up) LED: ORANGE Colour
‘SJ button to go back. * Next, to set the ON timer,
carry out steps 1 - 3 in “Set-
ting the ON Timer”.
(Example) To cancel the ON timer
If you would like the room temperature to be 1 2
nearly
at
the
desired
temperature
at
the
time
set
Press
the
Press
the
with
the
,
standard
operation
will
button.
button.
commence
15
minutes
before the
time
set.
Comfort Timer
Cooling and drying: 15 minutes before -
(There is not standard operation in case of Cir-
culation Operation Mode.)
14

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if the air conditioner is set before you go out,
: the room temperature will be closed to your desired
To make the room temperature close to the] temperature when you return.
desired temperature at 7:20 AM.
(Example)
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Press
the
Set
the
hours
and
Press
the
button.
minutes.
button.
(
The
ON
Timer
“©
>1”
will
blink)
¢
Press
the [FI
button
to
(The
timer
indication
lamp
will
advance
the
time,
and
press
light
up)
the
&
button
to
go
back.
* Next,
to
set
the
OFF
timer,
carry
out
steps
1
- 3
in
“Set-
ting
the
OFF
Timer’.
(Example) If the OFF timer has been set to
11:30 PM. and there is a electrical power failure.
Press the Press the
button. button.
©-O SET
(Example) To change the ON timer setting from
7:20 AM. to 6:20 AM.
1 2 5
Press the ON Change the Press the
Timer) button. | setting time to button.
6:20 AM.
®> | S SET
¢ Because the remote control is a battery-type,
even if there is a electrical power failure, the
setting time is stored in memory.
15

@When you sleep
Set the time you will go to sleep with the (OFF timer.
This will prevent wasting of electricity.
@When going out
Set the time you will go out with the
Set the time you will come back with the
This will prevent the air conditioner from being left on
while you are out, and the temperature will be pleas-
ant when you return.
4
Sau
@ Set the current time correctly.
@When you wake up
Set the time you will wake up with the
You can start the new day at a comfortable tempera-
ture.
@When you return
“TV
| Lo
Set the time you will come back with the
Set the time you will go to sleep with the
This will make the temperature pleasant when you
return, and it will prevent the air conditioner from
being left on.
@ Even when operation is stopped by means of
the OFF timer, the timer lamp on the main unit
will remain lit.
(It will switch off when the timer is cleared.)
@ The ON timer and OFF timer can only be set
once during one day.
If the time is not set correctly, correct timer
setting will not be possible. (Refer to page 7.)
@ When the timer is being set, the current time
display will be cleared.
16

Convenient
Operation
(Sleep
&
Circulation
Mode)
f
of
f
PEE
F
Giecalates.
the room aie
Select “Circulation” using the (Operation Mode Selec- After setting the desired operation details, press the
tion) button, and then press the(Start/Stop) button. Sleep Mode Auto) button.
(The
operation
indication
lamp
on
the
main
unit
will
(The
sleep
indication
lamp
on
the
main
unit
will
light
light
up.)
up.)
Press
the
(Start/Stop)
button
once
more.
(The
opera-
Press
the(Sleep)
button
once
more.
(The
sleep
indica-
tion
indication
lamp
on
the main unit
will
switch off.)
tion
lamp
on the main
unit
will
switch off.)
Circulation
Mode
operation
Sleep Mode
operation
@ When
the
temperature
near
the
ceiling
reaches
the
@
When the room
temperature
reaches the setting
setting temperature,
Circulation
Mode
operation
temperature,
the
airflow
volume
will
change
to
low.
commences
at
low
airflow
volume.
It
stops
when
@
When
using
together
with the
timer,
the
timer has
the
temperature
drops
to
2°C
below
the setting
priority.
temperature.
@
Sleep
Mode
operation
time
is 5 hours.
@ Sleep Mode operation is not possible during
Circulation Mode operation.
Sleep Mode operation starts
After approx. 5 hours
Approx.
1°C
increase
Stops
automatically
Setting
temperature
|
Repeatedly
operates.for
a
maximum
of
10
minutes
and
stops
for
20
minutes.
17
After ap prox. 1 hour
Approx. 1°C increase

<Cautions for use>
[After returning home or taking a bath]
[Together with the family]
18
¢ Always use the remote control to adjust the vertical
airflow direction. Moving the vertical airflow direc-
tion louver by hand could cause operation errors. If
this occurs, set the power switch to “O” (OFF) and
then back to “I” (ON) so that the louver returns to
the correct position.
While air conditioner operation is stopped, the
- vertical airflow direction louver will close the air
outlet vent automatically.
e
Airflow Direction Adjustment | | ft UU]
Manual airflow direction operation
Press the (Airflow Direction Manual Control
button continuously.
¢ The vertical airflow direction louver will move up
and down. Release the button when the louver is
at the desired position.
[ Range of louver adjustment hun |
manual airflow direction operation
* (Cooling and Soft Dry
— from horizontal
to 20° downward
During cooling and Soft Dry operation, do not
direct the vertical airflow direction louver down-
wards for long periods of time. If operation
continues in this way, condensation may form
on the louver and the air outlet vent, and drip-
ping may occur.

Automatic airflow direction operation
Press the | Airflow Direction Auto Control} button.
¢ When release the automatic airflow direction
operation, press the (Airflow Direction Manual
Control) button.
es of louver adjustment during |
automatic airflow direction operation
¢ During cooling and Soft Dry operation,
the louver will automatically swing up
and down.
(from horizontal to 20° downward)
When cooling:
swings up and down
When you wish to direct air, throughout
the room
Adjust the horizontal airflow direction
louver directly by hand.
ING V7 AS 7
i
4
* Horizontal adjustment of the airflow direction
is done manually
19