Mitsubishi Electric MS09NW User manual

~ MITSUBISHI
~ELECTRIC
SPRIT-TYPE AIR CONDITIONERS
OPERATING INSTRUCTIONS
MS09NW
MS12NN
MS15NN
MS17NN
m 1r. $l II m
l For customers I
CONTENTS
SAFETY PRECAUTIONS ...........................................................1
NAME OF EACH PART •••..•.••••..•.•••...•••..•.••...•.•.••...•.••....••••.•..••.. 5
PREPARATION BEFORE OPERATION •..•••••..•.•••••••••••...•••••.•.••. 7
"I FEEL • ." AUTO OPERATION ••••.•.••••.•.•.•.•..•.•..•.•..•••.•••••••••..••.. 9
MANUAL OPERATION (COOL, ORY, FAN) ••••..•...•••..••.•.....•••.• 11
AIRFLOW VELOCITY AND DIRECTION ADJUSTMENT •••...•• 13
SWING OPERATION ................................................................ 15
TIMER OPERATION (ON/OFF TIMER) .•••.••••••••••.•.••••••...••.••..• 16
WHEN THE AIR CONDITIONER IS NOT GOING TO BE
USED FOR A LONG TIME ••••••.•••.••.•••••..•••••..••••.•••••.•••••••••••••..• 17
MAINTENANCE .......................................................................18
CLEANING THE AIR FILTER/DEODORIZING FILTER ••....•••..• 19
REPLACEMENT OF THE DEODORIZING FILTER/
AIR CLEANING FILTER (OPTION) ••••..••••...•••••..••••••••••••..•••••.•• 20
BEFORE CONTACTING THE SERVICE MAN,
CHECK THE FOLLOWING AGAIN ........................................... 21
WHEN YOU THINK THAT TROUBLE HAS OCCUREO ••• L .... 22
· INSTALLATION, RELOCATION ANO INSPECTION ................ 24
Thank you very much for purchasing this Mitsubishi room air conditioner.
• To use this unit correctly and safely, be sure to read this instruction manual before use. Keep this manual carefully for later
reference.
• Be sure to receive a guarantee card from your dealer and check that the purchased data and shop name, etc. are entered
correctly.
• This air conditioner should not be installed by the customer (Safety and performance functions cannot be assured).

SAFETY PRECAUTIONS
• This air conditioner is for house hold use.
• Before using the unit, carefully read these "safety precautions" and use correctly.
• Since these cautionary items shown here are important for safety, be sure to observe them.
Marks and their meanings are as shown below.
F
'I
Lt
WARNING
Incorrect handling could cause a serious hazard, such as death, serious injury, etc with a
high probability.
Lt
CAUTION
Incorrect handling could cause a serious hazard depending on the conditions.
'-
Meanings of symbols used in this manual are as shown below.
'I
~
Be sure not to do.
8 Be sure
to follow the instruction.
~
Danger of an electric shock. Be careful.
~
• After reading this manual, keep it available together with the installation manual for prompt reference.
1

& WARNING
Do not insert your finger or
stick,etc.intotheairinlet/air
outlet.
• Since the fan rotates at high speed, this may
cause an injury.
Do not expose the skin to
coolairdirectlyforlongtime.
• This could damage your health.
When an abnormality occurs,
stop the air conditioner, and turn
off the breaker.
Repair or relocation should
notbedone by thecustomer.
• 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.
• If this is done incorrectly, it may cause a fire,
electric shock, injury by dropping of the unit,
water leakage, etc.
Consult your dealer.
2

3
SAFETY PRECAUTIONS
When the air filter is to be
removed, donottouch the
metal parts of the indoor
unit.
• It may cause an injury.
)it~
I
Insure power is turr:ied
off at the circuit breaker
before cleaning the unit.
• Sincethe fan rotates at high speed
during operation, it may cause an
injury.
Do not operate switches
with wet hands.
• It may cause an electric shock.
Do not clean the air
conditonerwith water.
• Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
Do notputapetorhouse
plant where will be
exposedtodirectairflow.
• This could injure the pet or plant.
Do not apply an
insecticideorflammable
·spray.
• It may cause a fire or deformation
of the cabinet.
/
✓~ ~
..... -,,
···= 11
--
,rJ /,
-:\ ' '
-.:_:..:.:;\ ,
~
~ CAUTION
Ventilatewell whenused
togetherwithastove,etc.
• An oxygen shortage may occur.
ji5ii]
0
Do not use for special
purposes.
• Do not use this air conditioner to
preserve precision devices, food,
animal, plants and art objects.
It may cause deterioration of
quality, etc.
Do notputa stove, heater, etc,
where it is exposed to direct air
flow or near the air conditioner
and remote controller.
• It may causeJmperfect combustion.
• The heat may deform the front
panel and remote controller.

If the air conditioner will not be
operated for long periods of time,
disconnect power to the system
or tum the circuit breaker off.
Do not step on the
indoor/outdoor unit and
do not putanythingonit.
• It may cause an injury through
dropping or falling down.
Do not leave on
installation stand which
'is damaged.
• Theunitmaydroporfall down and
cause an injury.
Do not operate for a long
time in high humidity, e.g.
leaving a door or window
open.
• In the cooling mode, ifit is operated in
a room with high humidity (80%r.h. or
more) for a long 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.
• It maycasean injury,etc. byfalling
down. ·
it WARNING
• Consultyourdealerforinstalling
the air conditioner.
~CAUTION
Apply grounding.
• Do not connect agrounding wire
to a gas pipe,water pipe, lightning
rod or ground wire of atelephone.
If agrounding is incorrect, it may
cause an electric shock. 0
If the air conditioner is installed in a
high humidity area or near a water
source, a Ground Fault Interrupt
(GFI) circuit breaker should be
installed to protect against shock.
0
Do not install the unit
where flammable gas
could leak.
• H ~ leaks and collect around the
unit, it may cause an explosion.
Drain water should be
fully drained.
• Hthe drainage route is inoomplete,
water may drop from the unit. It may
wet and spo,l furniture.
4

dlJ/) NAME OF EACH PART
Indoor unit
(when the front panel is opened)
MS09NW
I
MS12NN,MS15NN,MS17NN
florizontal vane
I-Remote controller
MS09NW
«d,MHJ,14®'.fa@M,UMffii-
rh, zj St=ifflt"'/j,
MS12NN,MS15NN,MS17NN
Outdoor unit MU12NN,MU15NN,MU17NN
MU09NW
Drain outlet
5

.
Signal transmittingsection
:operation i!isptaysection
-----ff-+-i
IFEEL.. ._, vl
0
COOL DRY FAN asi=
.. AUT01';:~ AUTO
...... ~,,
FANSPEEDCONTROLbutton
HR. button _- .
NIN.button ··
(TIME SET button)
AMPM CLOCK AMPM
IB:BB !+" :B:BD
E>START II\ E>STOP
ON/OFF<D ~'TOO(D· ATOO
WARM COOL
c::) c::) ,
MODE
FAN VANE
SWING
©STOP
J...MITSUBISH B.ECTRIC
~ - ~
(This diagram shows an overall view.)
TEMPERATURESbutton
6

Turn the breaker ON.
Remote· controller (how to set the current time) .. · · · . . · .·
OJ
Remove the back lid and insert
batteries. And then reattach the
back lid. u
~
..,.
..,.
...
nfuse l ·
+)and(-).
Press the RESET button.
..
Press it using a
thin stick.
■ After batteries are replaced, press the reset button.
■ If the reset button is not pressed, the remote controller
may not operate correctly.
7
Press the CLOCK SET button.
Press it using a
thin stick.
""'7 Press the o and o button
~ (TIME SET button) to set the
current time.
ON/OFF<D ~TOO l'i'"\ATOO
0 D \J/ D
....
(C)
MODE)
FAN
VANE
C) C)
SWING
C)
©START ©STOP
C)
C)
HR. 0 MIN.
C)a.OCKC)
,.__ RESETd.
J..MITSUBISHI B.ECTRIC
~ ~
--...:::-====---
• Each time the c:"> button is pressed, the. set time is
counted up by 1 hour, and each time theobutton
is pressed, the set time is counted up by 1 minute.
R7 Pre~s the CLOCK SET button
~ agam.

Handling of the remote controller
• The range that the signal can reach is about
6 m when pointed at the front of the indoor
unit.
• When the button is pressed, one or two
beeps will be heard from the indoor unit. If
no sound is heard, operate again.
• Use the remote controller carefully.
If it is dropped, thrown or gets wet, it may not
operate.
When installing on a wall, etc.
• 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 oN/OOFF © button
is pressed.
How to install/remove the remote controller
IInstalling IInsertthe remote controller
downward.
!Removing! Pull it up.
Remote controller ml
;MtmOtioaea,e---®'
Dry-cell batteries
IReference for replacing batteries I
When the signal does not operate the indoor
unit, or the display becomes dim, replace the
batterieswithnewalkalinebatteries(size AAA).
• Replace 2batteries with new batteries of the
same type.
• Do not use rechargeable batteries.
• To prevent from liquid leakage, take out all
batteries when the remote controller is not
going to be used for a long time.
• Theservice life ofanalkalinebattery is about
1 year.
However, since the recommended usable
time limit is indicated (month/year) on the
bottom of the battery,a batterythe time limit
of which is approachingmaybecomeexhaust
sooner.
WHEN THE REMOTE CONTROLLER
CANNOTBEUSED(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.
D
■
Press the EMERGENCY
OPERATION switch.
• Each time the switch is pressed, the unit
alternates between the EMERGENCY
COOL MOOE and STOP MOOE.
MS09NW MS12NN,MS15NN,MS17NN
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".
/ Operation Mode COOL
Set temperature 75"F
Fan speed Medium
,Horizontal vane Auto
The operation mode is indicated on the
operation indicator lamp on the Indoor
unit ·
Operation Indicator Lamp
EMERGENCY COOL STOP
~-~
~ LE_EJ
To stop EMERGENCY COOL
MODE, press EMERGENCY
OPERATION switch again.
8

9
"I FEEL..." AUTO OPERATION
With the "I FEEL ..." auto operation
mode, the optimum room
condition can be set
automatically by one-
touch operation.
I FEEL. ..
AUTO
ON/OFF<D 'TTOO (D" • TOO
00 D
co
MODE)
FAN
VANE
C)
C)
SWING
C)
©START
C)
©STOP
C)
HR. o MIN.
C)CLOCKC) 0
\.'---- RESET~:.,
J..MITSUBISHI ELECTRIC
~~~
• To start operation:
ON/OFF CD
Press the O button.
When the "I FEEL..." is displayed, the air condi•
tioner is automatically controlled at theoptimum
temperature.
• To stop operation:
ON/OFF(])
Press the O button.
When about 15 min. passes after operation start
If you feel slightly warm,
•TOO
WARM
Press the C) button to lower the
temperature.
One press lowers the temperature by about 2"F.
If you feel slightly cool,
aTOO
COOL
Press the o button to raise the
temperature.
One press raises the temperature by about 2"F.
When "I FEEL. .." is not displayed press the O MOOE
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
"FAN".
OOID~(i)~
le o MODE )l