Mitsubishi Electric MSH-09NV User manual

MSH-09NV-
MSH-12NV
MSH-18NV
MSH-24NV
CONTENTS
For customers
Thank you very much for purchasing this Mitsubishi room air conditioner.
SAFETY PRECAUTIONS
NAME OF EACH PART .. а
PREPARATION BEFORE OPERATION с
“| FEEL...” AUTO OPERATION...
MANUAL OPERATION (COOL, DRY, HEAT)
AIRFLOW VELOCITY AND DIRECTION
ADJUSTMENT
SLEEP MODE.........
SWING OPERATION .... K
TIMER OPERATION (ON/OFF TIMER)....................- 17
WHEN THE AIR CONDITIONER IS NOT GOING ТО BE
USED FOR A LONG TIME .............. e SUUS 18
МАІМТЕМАМСЕ 1n eic r ná 19
CLEANING THE AIR FILTER/DEODORIZING FILTER .20
REPLACEMENT OF THE DEODORIZING FILTER/
AIR CLEANING FILTER.............. tec 21
BEFORE CONTACTING THE SERVICE MAN,
CHECK THE FOLLOWING AGAIN... 22
WHEN YOU THINK THAT TROUBLE HAS
OCCURED Loc а ео ins a mda da 23
INSTALLATION, RELOCATION AND INSPECTION... 25
• To use this unit correctly and safely, be sure to read this instruction manual before. use. Keep this manual carefully for later
reference.
e Be sure to receive a guarantee card from your dealer and check that the purchased data and shop name, etc. are entered
correctly. >
e This air conditioner should not be installed by the customer (Safety and performance functions cannot be assured).

e Before using the unit, carefully read these “Safety
precautions” and use correctly.
e Since these cautionary items shown here are
important for safety, be sure to observe them.
Marks and their meanings are as shown below.
Do not connect using branched
outlet or an extension cord, and
do not attach many loads to one
electric outlet. |
e A fire or electric shock may result from poor
contact, poor insulation, exceeding the
permissible current, etc.
“| Incorrect handling could cause a
| serious hazard, such as death,
| serious injury, etc. with a high
-| probability.
„| Incorrect handling could cause а
| serious hazerd depending on the
| conditions.
Meanings of symbols used in this manual are as
shown below.
Be sure not to do.
Be sure to follow the instruction.
Remove dirt from the power
plug and securely insert into
the outlet.
e If dirt adheres to the plug or insertion is
incomplete, it may cause a fire or electric shock.
Be sure to ground.
Be sure to disconnect the power
plug.
Never onto the indoor/outdoor unit
to put anything on them.
Danger of an electric shock be
careful.
Never insert your finger or a stick, etc.
e After reading this manual, keep it together with
the installation manual in handy place for easy
reference.
Do not scratch or process
the power cord, etc.
ө Do not put heavy object on the power cord, do
not heat it, and do not process it. The cord may
be damaged and it may cause a fire or electric
shock.
&-

Do
not
disconnect/connect
Do
not
insert
your
finger
or
the
power
plug
during
stick,
etc.
into
the
air
inlet/air
operation.
outlet.
e Since the fan rotates at high speed, this may.
cause an injury.
e This may cause a fire due to sparks, etc.
Do not expose the skin to
Repair or relocation should
cool air directly for long time.
• This could damage your health.
not be done by the customer.
e If this is done incorrectly, it may cause a fire,
electric shock, injury by dropping of the unit,
water leakage, etc.
Consult your dealer. . -
The Customer should not
install this unit.
e If this is done incorrectly, it may cause a fire,
electric shock, injury by dropping of the unit,
water leakage, etc.
Consult your dealer.
When an abnormality (smell of
burning, etc) occurs, stop the air
conditioner, and disconnect the
power plug or turn off the breaker.
• Ifthe unit continues to be operated in an abnormal
condition, it may cause а fire, trouble, etc.In this
case, consult your dealer.

Do not pull the power
cord.
• Hold the power plug to disconnectit.
The core wire of the power cord may
be disconnected and it may cause a
fire.
When the unit is to be
cleaned, switch off, and
disconnect the power plug
or turn off the breaker.
e Since the fan rotates at high speed
during operation, it may cause an
injury.
Do not operate switches
with wet hands.
e | may cause an electric shock.
Do not clean the air
conditioner with water.
e Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
a AN —
f,
52
зе)
fe
V,
il
>
Do not put a pet or house
plant where will be
exposed to direct air flow.
e This could injure the pet or plant.
Do not apply an
insecticide or flammable
spray.
e | may cause a fire or deformation
of the cabinet.
Ventilate well when used
together with a stove, etc.
e An oxygen shortage may occur.
Do not use for special
purposes. iid
e Do not use this air conditioner to
preserve precision devices, food,
animal, plants and art objects.
It may cause deterioration of
quality, etc.
Do not put a stove, etc. -
where is exposed to
direct air flow.

When the unit is not going
to be used for а long time,
disconnect the power plug
or turn off the breaker.
e If not, dirt may collect and cause a
Do not step on the
indoor/outdoor unit and
do not put anything on it.
e | may cause an injury through
dropping or falling down.
Do not leave on
installation stand which
is damaged.
e The unit may drop or fall down and
cause an injury.
Do not operate for a long
time in high humidity, e.g.
leaving a door or window
open.
e Inthe cooling mode, if itis operated in
aroom with high humidity (80%r.h. or
more) for along time, water condensed
in the air conditioner may drop and
may wet and spoil furniture, etc.
Do not step onto an
unstable bench when
attaching/detaching the
panel.
e Itmay case an injury, etc. by falling
When the air filter is to be
removed, do not touch the
metal parts of the indoor
unit.
• | may cause an injury.
e Consult your dealer for installing
the air conditioner.
Apply grounding.
e Do not connect a grounding wire
toagas pipe, water pipe, lightning
rodor ground wire of atelephone.
If a grounding is incorrect, it may
cause an electric shock.
Install an earth leakage
breaker depending on the
place where the air
conditioner is to be
installed(humid place.etc.).
elf the earth leakage
breaker is not
installed, it may cause
an electric shock.
Do not install the unit
where flammable gas
could leak.
e If gas leaks and collect around the
unit, it may cause an explosion.
Drain water should be
fully drained.
e If the drainage route is incomplete,
water may drop from the unit. Itmay
wet and spoil furniture.

MSH-O9NV,
MSH-12NV
Front
panel
MSD-18NV
Air
cleaning
filter
`
Air
inlet
,
(White bellows type) ,
Deodorizing filter
Power supply plug E
SZ
"a a a RV
у
(gray sponge type) B=:
Remote control receiving section
Air filter
Horizontal vane
Vertical vanes
Remote controller
€ Operation section Display section |
(when the front panel is open) МЕ
М5Н-ОУМУ,
MSH-12NV
MSH-09NV,
MSH-12NV
Emergency operation switch
Receiving section |
Emergency operation switch
‘Receiving section
MSH-12NV, MSH-18NV
ЕШ (back and side)
Drainage hose
Air outlet
/ 58598538855
и Drain outlet |
Operation Indicator lamp
Operation Indicator lamp]

Remote
controller
- Signal transmitting section
ЕЕ E:
COOL DRY HEAT [haml Inl °C
PP AUTO
ana
ЛИРИ CLOCK AMP —
8:98 S (8:60
OSTART /€ OSTOP
( Operation display section -
OPERATE/STOP
(ON/OFF) button:
OPERATION
SELECT
button
|
TEMPERATURES
button
ИХ FAN SPEED CONTROL button, - VANE CONTROL button
SLEEP button. SWING button
ON-TIMER button ,
К CLOCK SET button
OFF-TIMER button
-. RESET button
2 HR: button
| MIN. button pn
(TIME SET button) 4
(This diagram shows an overall view.)

Insert
the
power
plug
into
the
ZX
WARNING
power
outlet
and
turn
the
breaker
Remove
dirt
from
the
power
plug
and
insert
it
on securely.
If dirt adheres to the plug or insertion is incomplete, it
may cause a fire or electric shock.
Remote controller (how to set the current time)
1
|
3
Press
the
cy
and
25
button
i
batteries.
And
then
reattach
the
ui
(TIME
SET
button)
to
set
the
ta]
current time
Press it using a
thin stick.
и Press the reset button. m Each time the 5 button is pressed, the set time is
m If the reset button is not pressed, the remote controller counted up by 1 hour, and each time the cS button
may not operate correctly. is pressed, the set time is counted up by 1 minute.
Press the CLOCK SET button.
% |
Press it using a
thin stick.

Handling of the remote controller
e The range that the signal can reach is about
6 m when pointed at the front of the indoor
unit.
e When the button is pressed, one or two
beeps will be heard from the indoor unit. If
no sound is heard, operate again.
e Use the remote controller carefully.
If itis dropped, thrown or gets wet, it may not
operate.
When installing on a wall, еќс. ·
e Install it using the remote controller
installation case in a position where the
signal reception sound (beep) can be heard
from the indoor unit when.the °NOFF © button
is pressed. O
How to install/remove the remote controller
Insert the remote controller
downward.
ing) Pull it up.
Remote controller
installation case
Dry-cell batteries
EO
When the signal does not operate the indoor
unit, or the display becomes dim, replace the
batteries with new alkaline batteries (size AAA).
e Replace 2 batteries with new batteries of the
same type.
e Do not use rechargeable batteries.
e To prevent from liquid leakage, take out all
batteries when the remote controller is not
going to be used for a long time.
e Theservice life of an alkaline battery is about
1 year.
However, since the recommended usable
time limit is indicated (month/year) on the
bottom of the battery, a battery the time limit
of whichis approaching may become exhaust
sooner.
WHEN THE REMOTE CONTROLLER
CANNOT BE USED(EMERGENCY
OPERATION)
When
the
batteries
of
the
remote
controller
run
out
or
remote
controller
malfunctions,
EMERGENCY
OPERATION
can
be
done
using
the
EMERGENCY
OPERATION
switch.
MSH-09NV, MSH-12NV
Press the EMERGENCY
OPERATION switch.
* Each time the switch is pressed, the unit
changes the EMERGENCY COOL MODE,
EMERGENCY HEAT MODE and STOP
MODE.
MSH-18NV, MSH-24NV
Details of operation are as shown below.
However, the temperature control does
not work for about 30 minutes at first
and the unit is set to the continuous
operation mode with the fan speed set to
“Medium”.
Set temperature
"| Fan speed
Fon oe vane
The operation mode is indicated on the
operation indicator lamp on the indoor
unit.
Medium
Auto
Medium
Auto
Operation Indicator Lamp
EMERGENCY
COOL
EMERGENCY
HEAT
STOP
Operation
Indicator
a O
| Operation Indicator
0-8
Operation Indicator
О O
To stop EMERGENCY OPER-
ATION, press EMERGENCY
"OPERATION switch again.
*
Each
time
the
switch
is
pressed,
the
unit
changes
the
EMERGENCY
COOL
MODE,
EMERGENCY
HEAT
MODE
and
STOP
MODE.

With the “I FEEL...” auto operation
mode, the optimum room
. condition can be set
automatically by one-
touch operation.
AUTO
© To start operation:
ON/OFF ©
Press the () button.
When the “I FEEL...” is displayed, the air condi-
tioner is automatically controlled at the optimum
temperature.,
@ To stop operation
ON/OFFO
Press the O button
When about 15 min. passes after operation start
If you feel slightly warm,
vTOO
Press the ману button to lower the
temperature.
One press lowers the temperature by about 1 °C.
If you feel slightly cool,
ATOO .
Press the ES button to raise the
temperature.
One press raises the temperature by about 1 °C.
a
When “I FEEL..." is not displayed, press the <> море
button to set to the “I FEEL...” auto operation mode.
Each time the button is pressed, the operation mode is
changed in sequence, from “I FEEL...”, “COOL”, “DRY” to
“HEAT”.
ON/OFF VTOO (1) АТОО
| WARM УУ COOL
O OE NEUEN.

Description of “I FEEL...” mode
Details of operation
According to the room temperature when the operation
starts, the operation mode is automatically selected between
COOL, DRY and HEAT. However, when operation is started
again within 2 hours after the operation is stopped, the same
operation mode before it is stopped is selected. The f Room temperature:
operation mode selected first is not changed even if the About 25°C or higher COOL
room temperature changes. If the operation mode does not Et | About 25°C to 23°C > DRY
match the room condition, select the required operation " \ — About 23°C or lower > HEAT /
mode by pressing the С> MODE button.
Details of “I FEEL...” auto operation
(initial state)
Room temperature 1 Target temperature
when started | Operation mode |
About 25°C or higher | COOL |
About 25°C to 23°C DRY |
| HEAT. About 26°C
About 24°C
About 23°C or lower
COOL: When the room temperature is 2°C higher than the set temperature, the set temperature may not be
decreased since the unit operates at high power. In this case, wait until the room temperature drops to
. Within 2°C of set temperature.
HEAT: When the room temperature is 2°C lower than the set temperature, the set temperature may not be
B increased since the unit operates at high power. In this case, wait until the room temperature rises to
within 2°C of set temperature.
Display details on the indoor unit
The operation indicator at the right side of
the indoor unit indicate the operation state.
Operation Indicator
M 0
Operation Indicator lamp
MEM
Difference between set
Indication
Operation
state
temperature
and
room
temperature
This shows that the air conditioner is operating to reach the
target temperature. Wait for some time until the target | About 2°C or more
temperature is obtained.
This shows that the room temperature is approaching the
target temperature.
About 2°C or less
10

With this operation mode, the
temperature and airflow
direction can be finely
adjusted by selecting the
operation mode.
) To select the “COOL”, “DRY” or “HEAT” mode )
Press the Oo button.
El Selectthe operation mode by pressing
theC > MODE button.
Each time this button is pressed, the operation mode
is changed in sequence, from “I FEEL...”, “COOL”,
“DRY”, “HEAT”.
• To stop operation:
Press the ONOFF © button.
After the operation mode is set once, the operation
starts in the mode set previously from the next time
by simply pressing the °NFF button.
a Whenthe settemperature
is to be changed:
YTOO
Press the © button to
lower the temperature.
One press lowers the
temperature by about 1°C.
ATOO
Press the ^5 button to
raise the temperature.
One press raises the
temperature by about 1°C.
E if the air conditioner absorbs too much heat from
the air, the machine may be overloaded.
Following a judgement made by the micro-
processor,
the
fan
in
the
outdoor
unit
is
automat-
ically stopped to protect the air conditioner.
When the outdoor unit's fan is stopped, frost may
form on the outdoor. This is not a problem.
5
M The temperature control (temperature setting)
cannot be done.
"шТће room temperature is slightly lowered in this
operation mode.
ш
When
the
ambient
temperature
is
too
high,
the
room
The
details
displayed
on
the
indoor
unit
temperature
may
not
reach
the
set
temperature
since
are
the
same
as
those
in
the
“I
FEEL...”.
the
unit
operates
to
cool
at
high load.
(COOL
MODE)
See
page
9.
t1

For effective cooling
@ Close the windows and pull @ Paste a heat shield film — @ Block the outdoor unit from
down blinds. Sunshine is (generally available) on the direct sunlight. This saves
reduced and cooling window. Heat entering the energy.
efficiency increases. room is reduced.
Comfortable
warmth
depends
on
the
the
temperature
difference
from
the
external
temperature.
It
is
recommended
that
the
set
temperature
in
the
heating
operation
does
not
differ
from
the
external
temperature
too
much.
Though
there
is
a
regional
difference,
as
a
reference,
a
set
temperature
between
about
20°C
and
24°С
is
most
suitable.
The humidity at which humans feel comfortable
When air contains too much moisture, humans feel clammy. Humidity is related with temperature
and wind. The humidity at which humans feel comfortable is 60%~75%RH in summer, 55%-~
70%FH in winter. А
12.

13
To change the AIR FLOW velocity,
FA
press the ^5 button.
AIR
is
М
ам
апа
а
can
Each
time
the
button
is
pressed,
fan
speed
is
changed
e
selected
as
required.
in
sequence,
from
«
[0].
[Med]
„„„[Hi]
AUTO.
* To condition the whole room, use the «и (Ні) mode.
* |f the sound of the air conditioner operating disturbs your
sleep, use the SLEEP mode (refer to page 15).
/€———— ———
тту
То change the AIR FLOW blowing
direction vertically, `
press the C button.
Each
time
the
button
is
pressed,
angle
of
horizontal
vane
is
changed
in
sequence,
from
-(1)„
(2)
¢
(3),
4)
(5)
AUTO.
|
Recommended horizontal
VANE range
Use in the AUTO position |
usually.
|а
Use
positions
—
(1)
ог
„
(2)
in
the COOL or DRY mode and
positions
4(3)
to
4(5)
in
the
|
HEAT mode
when
adjusting
to
i
your
requirements.
|
Ш
In
the
cooling
operation,
when
the
air
conditioner
is
operated
with
AIR
FLOW
blowing
down
4(4)
or
1(5)
for
1
hour,
the
AIR
FLOW
direction
is
automatically
set
to
level
to
prevent
condensed
water
from
dropping.
m
Adjust
the
vertical
AIR
FLOW
direction
using
the
remote
controller.
If
the
horizontal
vane
are
moved
manually,
it
may
cause
trouble.
Ein heating operation, if the output air temperature is too
low or when defrosting is done, the horizontal vane
position is set to ™ (1). r

AUTO AIR FLOW DIRECTION CONTROL OPERATION
* When the AUTO mode is selected with the oS button, the position of the horizontal vane
are automatically set to correspond to the operation mode to perform effective operation.
(1) HEAT e When the output air temperature is • When the output air temperature rises,
too low, the air is blown out horizontally. the air is blown out downwards.
(2) COOL, DRY œ The AIR FLOW blows level.
To change the horizontal direction of the AIR FLOW
move the vertical vanes manually.
Adjust the vanes before operation starts.
Since the horizontal vane move automatically, your fingers may be caught.
14

Perform the following operations while the unit is running.
Use this mode to reduce air flow sound
when sleeping, etc. SLEEP
Press the Č button.
(FEEL.
Del
——
|
eTorelease
the
SLEEP
mode:
Se ai AUTO Press pcm c again.
Ш The air flow sound from the indoor unit is decreased.
и When the ^5 button is pressed during the SLEEP mode,
the SLEEP mode is released.
S Use the sleep mode when you are going to bed. If this mode `
is used in the day, the capacity is reduced since the ambient
temperature is too high. (COOL MODE)
15

For AIR FLOW to reach all
corners of the room or to
strike a point directly, use
the swing operation.
Perform the following operations while the unit is running.
SWING
Press the С > button.
e To release the SWING operation mode;
SWING
Press the C > button again.
E if the O button is pressed during swing operation, swing
operation is released.
16

TIMER |
It is convenient to set the timer for the
time when you go to bed, when you get
home, when you get up, etc.
га Sm em AUTO
OPM
171-7177
1L LILI
©STOP
17
( How to set the ON timer )
Press the отт button to set the ON
1 timer mode during operation.
Each time the button is pressed, the ON timer mode
alternates between ON and OFF.
Set the time of the timer using the CS
and cc аи
Each time the cS button is pressed, the set time is
counted up by 1 hour; each time the oy button is
pressed, the set time is counted up by 10 minutes.
e To release the ON timer:
Press the 225" button to release the
timer.
How to set the OFF timer
STOP
Press the O button to set the OFF
timer mode during operation.
Each time the button is pressed, the OFF timer mode
alternates between ON and OFF.
Set the time of the timer using the >
and c buttons.
Each time фес button is pressed, the, set time is
counted up by 1 hour: each time the CS button is
pressed, the set time is counted up by 10 minutes.
e To release the OFF timer:
Press the? cs button to release the
timer.
The ON timer and OFF timer can be used in combination. The timer
ofthe set time which is reached first will operate first. (“< mark
indicates the order of timer operations.)
E ifthe currenttime has not been set, the timer operation
cannot be done.

When itis not going to be used
When the air conditioner is to
for a long time:
1] Perform FAN operation for 3 or
4 hours to dry the inside of the
air conditioner.
e To perform FAN operation, the highest set
temperature is selected the MANUAL COOL
OPERATION mode. (Page 11)
AA
D)
C
ZI
Turn off the breaker, then
disconnect the power plug.
— A CAUTION
Disconnect the power plug or turn off
the breaker when the air conditioner is
not going to be used for a long time.
Dirt may collect and may cause a fire.
Remove the batteries from the
remote controller.
be used again:
Clean the air filter and install it
in the indoor unit.
(Refer to page 20 for cleaning it.)
Clean it before
installing.
ES Checkthatthe air inlet and outlet
of the indoor/outdoor unit are
not blocked.
EH Check that the ground wire is
connected correctly. It may be
connected to the indoor unit side.
A CAUTION
Apply grounding.
Do not connect a grounding wire to a gas pipe, water
pipe, lightning rod or ground wire of a telephone. If a
grounding is incorrect, it may cause an electric shock.
18

|
Before
starting
maintenance
Cleaning
the
indoor
unit
Turn
off
the
breaker,
then
Clean
usina
soft
агу
cloth.
disconnect
the
power
plug.
uH
9
y
Do not use gasoline, benzine, polishing powder and
When the unit is to be cleaned, switch detergent. And do not spray with insecticide. The
А ? it А
off and disconnect the power plug or anit may ver damages
turn off the breaker.
Since the fan rotates at high speed during operation, it
may cause an injury.
19