Mitsubishi Electric MS09EW Guide

SERVICE & PARTS MANUAL
Wireless type
Models
INDOOR UNlT
MSOSEW
MS12EN
OUTDOOR UNlT

MS-O9DW + MSOSEW
1 . lndoor unit model changed.
2. Compressor changed. KH-122WEV
-+ KH-122WES
3. New model has Auto restartfunction.
/ 1 1
MS-12/15DN -+ MS12/15EN
1
. lndoorfront panel changed.
2. Suction linechanges from 1/2
0. D. to 5/8 0. D .
3. Compressor of MS15EN changed. RH207NAB -t RH-207NFL
4. New model has Auto restartfunction. Cut the jumper wire to work the function.
I
CHANGE POINTS
MSMI8EW
1 . lndoor unit model changed.
2. Compressor changed.KH-122WEV
-. KH-122WES
3. New model has Auto restartfunction. Cut the jumper wire to work the function.
Modelindication of wiring diagram and spec. name plate etc. chanegd.

FEATURES
LCD wireless
remote controller
Models Cooling Capacity
MSOSEW 8,800 Btu/h
MS12EN 12,300/12,600Btu/h
MS15EN 14,300/14,600Btu/h
MSMI8EW 8,400/8,400 x 2Btu/h
1. NEW "I FEEL CONTROL" IN OUR LCD WIRELESS RER
SEER
10.7
10.6/10.6
10.0/10.0
10.0/10.0x2
dOTE CONTROLLER
Mitsubishi Electric's new wireless remote controller incorporatesa number of advanced features that provide even greater
control andease-of-use.
It has a liquidcrystaldisplay which indicatessuch informationas mode, fan speedandtemperature
selectedas well as thetimer settingandtime remaining.
It isalso equippedwith "I Feel Control", aunique MitsubishiElectric
feature that allows the user toadjust the temperature to exactly the level he or she wants simply by tapping the buttonthat
describespresentconditions
: "Too Cool" "Too Warm", or "Okay".Theoptimumtemperatureset thisway isthen memorized
for immediate recallwhenever the air conditioner is used again. And what's more, the new controllerhas been made more
compact and easy to handle than even before.
2. A VARIETY OF MICROPROCESSOR-CONTROLLED FUNCTION
Automatic ON/OFF Timer
Convenienttimer function includesAuto Start, Auto Stop, bothcan be
set 1-12 hours.
Auto Stop (Night Setback) Mode.
This moderaisesthe temperature setting by 1"Fafter one hour, and by
another 1
"Fthe nexthalf hour. When 1-1/2 hourshave passed, the air
conditioner is running at a setting that is 2°F higher, thus preventing
excessive cooling.
Automatic Fan Speed Control
When there's a large difference between the set temperature and
existing roomtemperature, the fan speed automatically adjuststo HI.
As the temperature differentialdecreases, the Fan speed shifts down
automatically to MED and LO. Operation is almost whisper quiet.
Adjustable Change Vane System
Choose the air direction that suits your needs.
Keep it in a horizontal position to achieve uniform
aimow.
During cooling
Restart Function
The restart function restarts the equipment when power is restored
following an outage. Operation resumes in the mode in which the
equipment was running immediately before the outage.
High Performance Rotary Compressor
The advanced design of Mitsubishi Electric's powerful and energy-
efficient rotary compressor results in lower operating costs and longer
service life.
76
I I
Start 1 2
(Hour)

1 INDOOR UNIT 1
ll i 'ii
I
1
Showsthe room temperaturefor I FEEL CONTROL operation
R- R- 0 Shows that the unlt is in operation for the set
temperature (when 3'F or more difference exlsts
between set temperature and room temperature).
D
* Shows that the room temperature is approaching
the set temperature (diierence from set temper-
ature
is 2 to 3'F)
D D 0 Shows that the room temperature has almost
reached the set temperature (difference from set
temperature
is 2°F or less).
I
POWER lamp L~ghtsby turning POWER SWITCH on
2
( OUTDOOR UNIT /
I
Receives signal from the wireless remote controller.
Use only for TEST RUN at
installation or when the WIRELESS
REMOTE CONTROLLER
maVunctlons
Do not press thls button dunng
normal operanon,
or the operahon
SODS.
Removes water produced during cooling.
J
I Located on the back and side.
I

--
Once the controls are set, the same operatlon mode can
coNTRoLLE~ be repeated by s~mplyturning the POWER sw~tchON
- --
When batteries are replaced all of the controls memorized should
be canceled, and
' I FEEL-. - ' mode is automatically selected.
Sends an inflared signal
to control the air condi-
tioner.
1
This button is for setting of desired room temperature.
@button is to raise the temperature
@button is to lower the temperature by 2°F each time
the button pressed.
(Refer to page
17)
This figure shows
cool mode display.
When you feel "TOO WARM" or "TOO COOL" and
"OKAY (comfort) during the operation of the unit, the
desired temperature can be changed by pressing the
following buttons.
I I
TO0 WARM
Press when you feel too warm.
0
while the unit is operating. That
- comfort will be maintained.
TOO COOL
Press when you feel too cool.
I in
A selector for automatic ON/OFF of the air conditioner.
NORMAL: Continuousoperation regardlessofthetimer
setting.
AUTO STOP: 12hr Automatic OFF Timer.
AUTO START: 12hr Automatic ON Timer.
--
Switches over the air conditioner power ON/OFF.
Turns ON when pressed once and turns OFF when
pressed again.
Usethis buttonto set the tmefor timer controloperatlon
@ Increase by one hour
@ Decrease by one hour each tme the button is
pressed

I INDOOR UNIT ]
A
Provided on the front and top.
I FEEL MONFTOR
/ Showsthe roomtemperaturefor I FEEL CONTROL operatton I
m b Shows that the unit is in operation for the set
temperature (when
3'F or more difference exists
between set temperature and room temperature)
D
Shows that the room temperature k approaching
the set temperature (difference from set temper-
ature
is 2 to TF)
I I
D D Shows that the room temperature has almost
reached the set temperature (difference from set
temperature
is 2'F or less).
- POWER
OPERATION lamp
Lightswhen POWER
is turned ON.
I OUTDOOR UNIT ]
Use only for TEST RUN at
REMOTE CONTROLLER
Do not
pres; th~sbutton dunng
normal operabon, or the operation
stops
I Removes water producted during cool in^.
I
Located on the back and side.
I

-
MODELS
ITEM
Cool~nacawacitv*
' Btu/h
-. ,
I I I
/ power supply V.Hz,C / 115,60, 1 1
MSOSEW
8.800
Power consumption*
' W / 830
EER[SEER)
INDOOR UNIT
Externalfinish
/ Fan motor F.L.A / 0.3 1
MSMISEW
850
10.6[10.7)
MSO9EW
Max.fusesize (timedelay) A
/ 15
SINGLE
1,700
Min. amoacity
I Cond.drain conn. O.D. in. 1 5/8 1
DOUBLE
White
9.9(10.0)
0.4
Airflow Lo-Me-Hi
Dimensions
9.9[10.0)
IW in. I 31-11'8 I
8.400
MSO9EWx2
Dn/ CFM
8.400~2
180-205-265
/ H in. 1 14-3/16 I
Wet CFM I 159-1 84-237
I
D ~n. 5-3/8
Weight Ib
I 25
/ Fan motor F.L.A / 0.6 i-
OUTDOOR UNIT
Externalfinish
Power supply V.Hz,C
Max.fuse size (timedelay) A
I
1 / Model KH122WES KH122WESx 2
MUOSEW Munsell 5Y6.5/1 MUM18EW
115,60, 1
Compressor
/ REMOTE CONTROLLER I Wireless type 1
208/230,60,1
Winding resistance (at 68F)n
R.L.A
Refrigerantcontrol
15
Capillarytube
Dimensions
Controlvoltage (by built-in transformer)
15x2
C-R 0.98 C-S 2.21
29-15/16
9-';/I 6
21-1/4
73
W in.
D ln.
H in.
12V DC
Pipe size
10
33-1/2
11-7/16(12-5/8)
23-7/8
122Weight Ib
Connection method
Note*
I. Rating conditions (cooling)-Indoor : 8OFDB,67'FWB, Outdoor : 95FDB.75FWB
Operating kange
10x2
REFRIGERANT PIPINGLiquid in.
Gas in.
Betweenthe indoor
& outdoor units
I / Indoor intakeair temwerature I Outdoor intakeair temoerature /
Not supplied (optionalparts)
1/4
3/8
Indoors
Height difference
ft 1 Max. 25
Piping length
ft / Max. 49
Flared
Outdoors
Cooling
Flared
SO'FDB, 71"FWB
67"FDB. 57"FWB
Maximum
Minimum
115FDB
67"FDB

I Cooling capacity*' Btu/h / 12,300/12,600
/power consumption*
' w I 1,170/1,200 I 1,460/1,490 1
EER * ' (SEER)
I I
/ Fan motor F.L.A / 0.5 I
10.5/10.5(10.6/10.6)
External finish
Power supply V,Hz,4
Max.fuse size (timedelay) A
Min
. ampacity A
9.8/9.8(10.0/10.0)
115,60,1
15
0.7
MS15EN
INDOOR UNIT White
I
Dimensions 1 D in. I 7
MS12EN
White
DW CFM
Cond.drain conn. O.D. in.
279-374-427
5/8
/W in. 1 39-3/8
H in.
Airflow Lo-Me-Hi
14-3/16
-
I
/ Max.fusesize (timedelay) 15 1 20 1
Wet CFM / 265-357-406
Weiqht Ib
/ 35
OUTDOOR UNIT
External finish Munsell 5Y6.5/1
MUl2EN
Power supply V,Hz,4
1 208/230,60,1
L.R.A
Refrigerant control
/W in.
MU15EN
Dimensions
29
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
35
D in.
H in.
Wirelesstype
12V DC
Not supplied (optionalparts)
Pipe size
Notes* 1. Rating conditions (cooling)-Indoor
: 80"FDBr67"FWB,Outdoor : 95FDB.75FWB
Capillary tube
33-1/2
11-7/16(12-5/8)
23-7/8
Weight Ib
Connection method
Between the indoor
& outdoor units
Operating Range
/ Indoor intakeair temperature I Outdoor intakeair temperature 1
99
Liquid in. 1/4
Indoors
Outdoors
Height difference
ft
Piping length ft
Gas in. I 5/8
Flared
Flared
Max. 25
Max. 49
Cooling SWFDB, 71"FWB
67"FDB. 57TWB
Maximum
Minimum
115FDB
67"FDB

1. PERFORMANCE CURVE
NOTE : A point on the curve shows the reference point.
1
Outdoor intake air DB temperature rF)
DATA
MS15EN
MU15EN
Cooling capacity
SHF at rating condition = 0.67
Airflow = 406CFM
MS12EN
MU12EN
Cooling capacity
SHF at ratlngcondition = 0.7 1
Airflow = 406CFM
18
e
i!
fj 15
Et
X
; 12 71
+
.-
0
67
m a 63
5 9
-
m
C
2'
z -
c 2
E!
C
e 71
2 67
63
81
k
3
a
-
m
C
I-
67 75 85 95 95 105 115
Outdoor intake air DBtemperature ("F)
MSOSEW x2
MUM18EW
Cooling capacity
SHF st rating condition = 0.7
Airflow = 237CFM
Bypass Factor =0.07
I I I I I I I
Outdoor mtake air DB temperature rF)
Outdoor~ntakeair DB temperature ("F)

CONDENSING PRESSURE AND SUCTION PRESSURE
Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows the reference point.
P!
I
, P!
a
c
.-
I-'
3
m
85 90 95 100 1
Outdoor ambienttemperature
Outdoor ambienttemperature