Panasonic CS-MC120KE User manual

ServiceManual
Multi-Split Air Conditioner
Contents
●Features ..........................................................1
●Functions ...................................................2 – 4
●Product Specification.................................5 – 6
●Dimensions................................................7 – 8
●Refrigeration Cycle Diagram ...........................9
●Block Diagram ...............................................10
●Wiring Diagram..............................................11
●Operation Details...................................12 – 18
●Installation Information ..........................19 – 20
●2-way, 3-way Valves..............................21 – 27
●Servicing Information.............................28 – 31
●Troubleshooting Guide ..........................32 – 33
●Technical Data...............................................34
●Exploded View.........................................35, 37
●Replacement Part List .............................36, 38
●Electronic Parts List.......................................39
CS-MC120KE / CU-MC240KE
ORDER NO. MAC9611041C2
 1996 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
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– 1 –
MAC9611041C2
CS-MC120KE
WARNING
Thisserviceinformationisdesignedfor experienced repairtechnicians onlyand isnot designedfor useby thegeneral public.Itdoesnotcontain
warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity
should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with
in this service information by anyone else could result in serious injury or death.
!
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigeration circuit.
!
• High Efficiency
• Compact Design
• Comfort Improvement
– Wider range of horizontal discharge air
– Longer hours of sleep mode operation
• Auto Restart
– Auto restart operation after power failure
• Removable and Washable
Front Panel
• Installation Work Improvement
– Long piping up to 15 m.
• Quality Improvement
– Low voltage protection
– Gas leakage protection
– Prevent compressor reverse cycle
– 2-stage OLP to protect compressor
• Service Improvement
– Easy fan motor replacement procedure
Features
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– 2 –
MAC9611041C2
CS-MC120KE
Remote Control
Functions
Operation OFF / ON
OFF / ON IRoom Temperature Setting TEMP.
• Temperature Setting (16˚C to 30˚C)
• Automatic Operation
m /n 2˚C lower than standard
n Standard
n -o 2˚C higher than standard
Operation Mode Selection
•AUTO Automatic Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
•FAN Air Circulation Mode
MODE
TIME Time / Timer Setting
• Hours and minutes setting.
Clock Setting
• Current time setting.
Sleep Mode Operation OFF / ON
SLEEP
Indoor Fan Speed Selection
FAN SPEED
•h j k Low Speed
l
•h j k Medium Speed
lll
•h j k High Speed
lllll
•AUTOFAN Automatic Fan Speed
•SWING Automatic Airflow Direction
Control
•MANUAL Airflow Direction Manual Control
Airflow Direction Control
• 24-hour, OFF / ON Real Timer Setting.
ON-TIMER
OFF-TIMER Timer Operation Selection
SET
CANCEL Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
CLOCK
(q)
AIR SWING
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– 3 –
MAC9611041C2
CS-MC120KE
Indoor Unit
Functions
Power Switch OFF / ON
POWER I
Auto Operation Switch
• Used when the remote control cannot be
used.
Remote Control Signal Receiving
Sound Control
• It can be controlled by pressing Auto
Operation Switch for 10 seconds.
AUTO
OFF / ON
Operation Test Running / Pump
Down Switch
TEST RUN
OFF / ON
Operation Indication Lamps (LED)
•POWER (Red)...... Lights up in operation,
blinks in Automatic
Operation Mode judging
•SLEEP (Orange)..... Lights up in Sleep
Mode Operation
•TIMER (Orange)..... Lights up in Timer
Setting
Auto Restart Control
• Operation is restarted after power failure
at previous setting mode.
Anti-Freezing Control
• Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
• Used when test running or servicing.
Sleep Mode Auto Control
• Indoor Fan operates and stops at 4-second
intervals at low speed.
• Operation stops after 8 hours.
Indoor Fan Speed Control
• High, Medium and Low.
• Automatic Fan Speed Mode
– Cooling : Fan rotates at Hi and Me
speed. Deodorizing control is
available.
– Soft Dry : Fan rotates at SLo and Lo
speed. Deodorizing control is
available.
Airflow Direction Control
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for horizontal
airflow.
Operation Mode
• Cooling, Soft Dry, Air Circulation and
Automatic Mode.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
• Cooling Operation only.
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– 4 –
MAC9611041C2
CS-MC120KE
Compressor Reverse Rotation
Protection Control
Outdoor Unit
Functions
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
Overload Protector
• 2-Stage OLP to protect the compressor.
Overload Protector will trip when
– Temperature of compressor increases to
120°C.
– High temperature or high current flows to
compressor.
(Refer circuit diagram for OLP
characteristic)
60 Secs. Forced Operation Control
• Once the compressor is activated, it does
not stop for 60 secs. (Stops immediately
with remote control stop signal.)
Outdoor Fan Operation Control
• Inner protector.
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– 5 –
MAC9611041C2
CS-MC120KE
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Moisture Removal
Power Source
Airflow Method
Air Volume
Noise Level
Electrical
Data
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions
Net Weight
Compressor
Air Circulation
Height
Width
Depth
Type
Motor Type
Rated Output
Type
Material
Motor Type
Input
Rated Output
Fan Low
Speed Medium
High
Unit
kW
Btu/h
s/h
Pint/h
Phase
V
Cycle
OUTLET
INTAKE
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
W
A
W/W
A
inch
inch
inch
inch
mm
m
m
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
Indoor Air (Lo)
Indoor Air (Me)
Indoor Air (Hi)
Outdoor Air
CU-MC240KE
TOP VIEW
–
–
–
22.0 (780)
(1 Unit) (2 Unit)
High 49 - 48, High 52 - 51
G ; 3-way valve 1/2"
L ; 2-way valve 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
–
–
–
–
41-5/32 (1045)
30-23/32 (780)
9-21/32 (245)
179 (81)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
1,100 ×2
Propeller Fan
AES + Glass Fiber 16%
Induction (6-poles)
60.7 ×2
20 ×2
–
–
730
CS-MC120KE
SIDE VIEW
7.3 (260)
7.6 (270)
8.3 (290)
–
High 39 - 39, Low 36 - 35
G ; Half Union 1/2"
L ; Half Union 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
12
0.7
2.1
3 (1.0 mm2)
11-7/16 (290)
31-15/32 (799)
6-29/32 (175)
18 (8.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Induction (4-poles)
27
10
1,200
1,250
1,360
3.50 ×2 - 3.45 ×2
11,900 ×2 - 11,800 ×2
2.0 ×2
4.2 ×2
Single
240 - 220
50
1,260 ×2 - 1,210 ×2
5.7 ×2 - 5.7 ×2
2.7 - 2.8
25 ×2
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– 6 –
MAC9611041C2
CS-MC120KE
Product Specifications
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W ×H ×L)
µF, VAC
µF, VAC
Length
Flow Rate
Inner Diameter
Material
Style
Heat
Exchanger
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Unit
mm
(c.c)
g (oz)
mm
s/min
mm
(Plate fin configuration, forced draft)
Capillary Tube
CS-MC120KE
Evaporator
Copper
Aluminium
Slot Fin
2 ×12
21
600 ×252 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
1.0 µF, 450 VAC
CU-MC240KE
Condenser
Copper
Aluminium
Corrugated Fin
1 ×19
21
776.2 ×482.6 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (430 ×2)
670 ×2 (23.7 ×2)
–
2-Stage Overload Protector
560
16.7
1.7
–
30 µF, 370 VAC
(Upper unit)1.0 µF, 400 VAC
(Lower unit)1.2 µF, 400 VAC
• Specifications are subject to change without notice for further improvement.
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– 7 –
MAC9611041C2
CS-MC120KE
Dimensions
CS-MC120KE
Relative position between the indoor unit and the installation plate <Front View>
790
48.5
60
290
<Front View>
175
61
34.5
52
direction
Air intake
Air outlet
direction
Left piping hole Right piping hole
290
115
55 60
2100
57
142
16
Remote control transmitter
(45)(410)
<Back View> Installation plate hooks
Drain ports Gas
side Liquid
side
(40) 710 (40)
276 7
(60) (110)
100 100
Slot (2 places)
Slot (2 places)
Centre notch
Indoor unit external
dimensions line
Installation plate
Left piping hole
Arrow
Arrow Centre Right piping hole
Installation plate positioning gauge
350
7
457
13.5
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– 8 –
MAC9611041C2
CS-MC120KE
Dimensions
CU-MC240KE
67104
105105 570 280
312
112
67466 1045
780 57 245
Gas side
3-way valve
Liquid side
2-way valve
Unit A
Unit B
2-way valve
Liquid side
3-way valve
Gas side
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– 9 –
MAC9611041C2
CS-MC120KE
Refrigeration Cycle Diagram
CS-MC120KE / CU-MC240KE
COMPRESSOR
SENSOR
TEMP.
AIR HEAT
EXCHANGER
TEMP.
INDOOR OUTDOOR
HEAT EXCHANGER
(EVAPORATOR)
HEAT EXCHANGER
(CONDENSER)
2-WAY
VALVE
VALVE
3-WAY
CAPILLARY TUBE
SENSOR
INTAKE
INTAKE
SENSOR
CAPILLARY TUBE
3-WAY
VALVE
VALVE
2-WAY
(CONDENSER)
HEAT EXCHANGER
(EVAPORATOR)
HEAT EXCHANGER
TEMP.
EXCHANGER
HEAT
AIR
TEMP.
SENSOR
COMPRESSOR
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– 10 –
MAC9611041C2
CS-MC120KE
Block Diagram
CS-MC120KE / CU-MC240KE
22 11
3C
"C"
FUSE 3.15A
RY-C RECEIVER
P.C.B.
SINGLE PHASE
AC 220-240V
50Hz
RY-H
TRANS- FORMER
THERMAL
FUSE
(99°C)
(102°C)
FUSE
THERMAL
ZNR
FAN
MOTOR
POWER SWITCH ELECTRONIC CONTROLLER
Indicates the electronic control unit.
Indicates the number of core wires. (Example:6C=6 core wires).
COMP
O.L.P.
FAN
MOTOR
RY-M
P.C.B. INDICATOR
4C
5C
STEPPING MOTOR
INDOOR UNIT OUTDOOR UNIT
WIRELESS
REMOTE CONTROL
TRANSMITTER
5A
FUSE
ZNR
SSR
MAIN
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– 11 –
MAC9611041C2
CS-MC120KE
Wiring Diagram
CS-MC120KE / CU-MC240KE
21
12
TERMINAL
INDOOR UNIT
TERMINAL
OUTDOOR UNIT
CN-RCV(W)
CN-DISP(W)
MAIN SW
432
1234
MOTOR
CN-STM(G)CN-TH(Y) 123454321
(INTAKE TEMP.)
SENSOR
YELLOW
REDBLUE
COMPRESSOR TERMINAL
BRAND MARK
CAPACITOR
FAN MOTOR
CAPACITOR
R
B
B
Y
R
B
B
B
B
B
W W W W
Y/G
B
BR
POWER SUPPLY CORD
DISPLAY LAMP
CN-DISP(W)
CONTROL
REMOTE
WIRELESS CONTROLLER ELECTRONIC
(RECEIVER)
CN-RCV (W)
AUTO SW
PUMP DOWN SW
TRANSFORMER
RY-C
RY-M
RY-H
ZNR
CN-FM(G)
CAPACITOR
SSR
FAN
MOTOR
P
L
FUSE(3.15A)
BR
W
135
Y
BR
O
13
B
R
T(BL) T(BL)
W
W
BL
Y/G
Y
P
Y
O
R
BR
BA
REMOTE
CONTROL No.
2
13
4 ELECTRONIC CONTROLLER
(G)
CN-C
COMPRESSOR
1
ELECTRONIC
CONTROLLER
BL BL
220-240V, 50Hz
LOUVER
3
2
1
7
BL
321
(TEST RUN)
ZNR
OLP (W)
SENSOR
(PIPE TEMP.)
R
R
THERMAL
FUSE
(99°C)
(102°C)
FUSE
THERMAL
RR
W
W
FUSE 5A
13
B
CR1
CN-T(W)
CN-FUSE(B)
PROTECTOR OVER LOAD
GRY
1
2
W
21
12
TERMINAL
INDOOR UNIT
TERMINAL
OUTDOOR UNIT
CN-RCV(W)
CN-DISP(W)
MAIN SW
432
1234
MOTOR
CN-STM(G)CN-TH(Y) 123454321
(INTAKE TEMP.)
SENSOR
YELLOW
REDBLUE
COMPRESSOR TERMINAL
BRAND MARK
CAPACITOR
FAN MOTOR
CAPACITOR
R
B
B
Y
R
B
B
B
B
B
W W W W
Y/G
B
BR
POWER SUPPLY CORD
DISPLAY LAMP
CN-DISP(W)
CONTROL
REMOTE
WIRELESS CONTROLLER ELECTRONIC
(RECEIVER)
CN-RCV (W)
AUTO SW
PUMP DOWN SW
TRANSFORMER
RY-C
RY-M
RY-H
ZNR
CN-FM(G)
CAPACITOR
SSR
FAN
MOTOR
P
L
FUSE(3.15A)
BR
W
135
Y
BR
O
13
B
R
T(BL) T(BL)
W
W
BL
Y/G
Y
P
Y
O
R
BR
BA
REMOTE
CONTROL No.
2
13
4 ELECTRONIC CONTROLLER
(G)
CN-C
COMPRESSOR
1
ELECTRONIC
CONTROLLER
BL BL
220-240V, 50Hz
LOUVER
3
2
1
7
BL
321
(TEST RUN)
ZNR
OLP (W)
SENSOR
(PIPE TEMP.)
R
R
THERMAL
FUSE
(99°C)
(102°C)
FUSE
THERMAL
RR
W
W
FUSE 5A
13
B
CR1
CN-T(W)
CN-FUSE(B)
PROTECTOR OVER LOAD
GRY
1
2
W
REMARKS:
B : BLUE
BR : BROWN
BL : BLACK
W : WHITE
R : RED
O : ORANGE
P : PINK
Y/G : YELLOW/
GREEN
GRY : GRAY 2KS224D5AC02 (Ω)
2.45
3.86
Resistance of Compressor Windings
CONNECTION
C-R
C-S
CONNECTION
BLUE - YELLOW
YELLOW - RED
CWA95319 (Ω)
260.5
446.0
Resistance of Outdoor Fan Motor Windings
CONNECTION
YELLOW - BLUE
YELLOW - BROWN
BROWN - ORANGE
ORANGE - RED
CWA92231 (Ω)
515.9
139.3
28.3
311.9
Resistance of Indoor Fan Motor Windings
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– 12 –
MAC9611041C2
CS-MC120KE
Operation Details
1) Cooling Mode Operation
Cooling in operation according to Remote Control setting.
• When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3
minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.
• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3
minutes.
• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is below the
compressor ON temperature.
• If the compressor is operating continually for 5 minutes or longer and the temperature difference between intake air
and indoor heat exchanger is 2.5˚C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid).
∆ T = Intake air temperature – Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
Time Delay Safety Control (3 minutes)
7 minutes Time Saved Control
Anti-Freezing Control
• If the temperature of the indoor heat exchanger
falls continously below 2°C for 4 minutes, the
compressor turns off to protect the indoor heat
exchanger from freezing. The fan speed setting
remains the same.
• Compressor recommences when the indoor heat
exchanger temperature rises to 10°C (Recovery).
*3 minutes waiting of Time Delay Safety
Control is valid for Cooling Operation.
Compressor Reverse Rotation
Protection Control
• Compressor starts for >5 minutes
• ∆ T <2.5˚C for 2 minutes
Compressor
restarts
(3 minutes waiting)
Compressor
OFF
➡➡
Recovery
4 min
Compressor OFF
Indoor Heat
Exchanger
Temperature
(°C)
2
10
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– 13 –
MAC9611041C2
CS-MC120KE
Automatic Fan Speed Mode
When Automatic Fan Speed is selected at Remote Control during cooling operation.
• Fan speed rotates in the range of Hi to Me.
• Deodorizing Control.
Operation Details
Cooling Operation Time Diagram
abcdefghijklmnopqrstuvwxyz
Basic Time
Compressor
Indoor Fan
Outdoor Fan
Operation LED
1’ 3’ 1’ 7’ 1’ 3’
4’
1.5˚C
ON
OFF
Comp.
Intake Air
Temperature
Comp.
Set Temp.
Indoor
Heat
Exchanger
Temp.
10°C
2°C
Indoor
Fan
Comp.
Lo Lo Lo Lo
ON ONOFF
stop stop stop
30"
stop
30"160"
1
40" 40"
20"
✕
..
.
.2
✕
..
.
.
*1 Fan Speed is Hi until the compressor stops (when the room temperature reaches
setting temperature).
*2 Fan Speed is Me after the compressor restarts.
Operation
Stop
<Description of operation>
d – g : Time Delay Safety Control (waiting for 3 minutes)
g – h : 60 sec. Forced Operation
h – 0 : 7 min. Time Saved Control
q – t : Anti Freezing Control
<Condition>
a – h : When outdoor temperature is high
h – p : When outdoor temperature is moderate
p – w : When outdoor temperature is low
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– 14 –
MAC9611041C2
CS-MC120KE
Operation Details
2) Soft Dry Mode Operation
• The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote
Control, and then Soft Dry operation will start.
• During Soft Dry operation, the Indoor Fan will operate and stop at 4-second intervals at low speed.
• The operation will be switched on and off for up to 10 minutes “ON” and 6 minutes “OFF”. Once Soft Dry opera-
tion is turned off, it stops for 6 minutes.
• Once the compressor stops, it will not start for 3 minutes during Cooling operation.
• Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during
compressor stops.)
• Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (Refer page 17)
When Automatic Fan Speed is selected at Remote Control during Soft Dry Operation.
• Fan speed rotates at SLo and Lo speed.
• Deodorizing Control.
*SLo: Indoor Fan rotates at 4-second intervals at low speed.
Time Delay Safety Control
Anti-Freezing Control
Compressor Reverse Rotation
Protection
Automatic Fan Speed Mode
Indoor
Fan
COMP
stop stop stop
SLo Lo SLo
ON ON
OFF
40" 40"6'
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– 15 –
MAC9611041C2
CS-MC120KE
Operation Details
Soft Dry Operation Time Diagram
abcdefghijklmnopqrstuv
Basic Time
Compressor
Indoor Fan
Outdoor Fan
Operation LED
10’ 1’ 1’
1’6’ 6’ 6’ 6’
4’ 1’
Cooling ON
Cooling OFF
Soft Dry ON
Soft Dry OFF
1.5°C
1.0°C
SLoSLo SLo SLoSLo SLo SLo SLoSLo SLo SLo SLo
Indoor
Heat Exchanger
Temp.
10°C
2°C
6’
Intake Air
Temperature
Set Temp.
<Description of operation>
a – c, p~r : Cooling Operation
c – p : Soft Dry Operation
e – f : Soft Dry OFF
j – l : 60 sec. Forced Operation
q – t : Anti Freezing Control
<Condition>
a – h : When outdoor temperature is high
h – p : When outdoor temperature is moderate
p – u : When outdoor temperature is low
SoftDryoperation
Operation
Stop
- - - - -
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– 16 –
MAC9611041C2
CS-MC120KE
Operation Details
3) Air Circulation Mode Operation
• Whenthetemperatureneartheceilingreachesthesettingtemperature,AirCirculationModeoperationcommences
at low airflow volume. It stops when the temperature drops to 2°C below the setting temperature.
Air Circulation Mode Operation Time Diagram
ON
Setting
Temp.
OFF
Compressor
Indoor Fan
Outdoor Fan
Operation
Indication LED
2°C
Intake Air Temp.
a b c d e
Lo Lo Operation
Stop
Higher →+2°C
Standard →±0°C
Lower →–2°C
Cooling
27°C
25°C
23°C
Soft Dry
24°C
22°C
20°C
4) Automatic Mode Operation
Standard for Determining Operation Mode
(a) Indoor fan operates at Lo fan speed for 20 seconds.
(b) After judging indoor air temperature, the operation mode is determined and operation continued at the mode
determined.
(c) After the operation mode has been determined, the mode does not change. However, Soft Dry mode operation
includes Cooling mode operation.
(d) If Automatic Mode operation is started while the air conditioner is operating, operation will continue. If current
operation is in Cooling mode (including the operation which is a part of Soft Dry mode operation), it will be
maintained, for 20 seconds at Lo fan speed. Then, the selected operation mode will continue.
(e) Room temperature adjustment.
The following are added to the setting temperature specified as above.
Cooling Mode
Soft Dry Mode
Setting Temperature (Standard)
25°C
22°C
Cooling Mode
Soft Dry Mode
23°C
↑
Intake air
temperature
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– 17 –
MAC9611041C2
CS-MC120KE
Operation Details
5) Sleep Mode Auto Operation
Cooling or Soft Dry Operation
6) Auto Restart Control
• If there is a power failure, operation will be automatically restarted when the power is resumed.
It will start with previous operation mode and airflow direction.
(Time Delay Safety Control is valid)
• Auto Restart Control is not available when Timer or Sleep Mode is set.
• This control can be omitted by cutting the jumper wire J2. (Refer Circuit Diagram)
WhenyoupresstheSLEEP Mode, the following move-
ment will start to avoid overcooling.
• The fan speed is automatically set to Low.
• The setting temperature will be risen by 0.5°C at the
start of operation and by 0.5°C one hour later.
• The operation will stop after 8hours.
7) Indoor Fan Speed Control
• Auto Fan Speed Control
When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the
table.
• Manual Fan Speed Control
Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection
button.
START STOP
1 HOUR
8 HOURS
0.5°C UP
0.5°C UP
SET
TEMP.
Fan Speed Hi
t
t
Manual
Automatic
Cooling
Soft Dry
Air Circulation
Me
t
t
Lo
t
t
t
SLo
t
*SLo: Indoor Fan rotates at 4-second intervals at Low speed.
Stop
t
t
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– 18 –
MAC9611041C2
CS-MC120KE
Operation Details
*The left and right airflow direction louvers can be
adjusted manually.
Lower limit for
Cooling Mode and
Soft Dry Mode
Lower limit for Air Circulation Mode
•When set a Airflow Direction Auto-Control with
remotecontrol,thelouverswingsupanddownas
shown in the diagram.
•The louver does not swing when the Indoor Fan
stops during operation.
•Whenstoppedwithremotecontrol,thedischarge
vent is closed with the louver.
8) Airflow Direction Control
34°
58°
Horizontal
Airflow Direction Auto-Control
Swing up and down
Upper limit
*1 There is no swinging while indoor fan is stopped during Cooling and Soft Dry operation.
*2 In Air Circulation operation, when the intake air temperature reaches set temperature, the airflow direction is
changed from upper limit to lower limit. When the intake air temperature falls to 2°C lower than set temperature,
the airflow direction is changed from lower limit to upper limit.
•When the airflow direction set button is pressed,
the automatic airflow is released and the airflow
direction louver move up and down in the range
shown in the diagram.
Thelouvercanbestoppedbyreleasingthe button
at the desired louver position.
•Whentheremotecontrolisusedtostoptheopera-
tion, the discharge vent is closed with airflow
direction louver.
• WhentheDelayed ONTimerisset byusingtheremote control,theunitwill start operateslightlybeforethe settime,
so that the room will reach nearly to the set temperature by the desired time.
• For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time.
• ForAutomaticmode,theindoorfanwilloperateatSLospeedfor20seconds15minutesbeforethesettimetodetect
the intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.
9) Delay ON Timer Control
*The left and right airflow direction louvers can be
adjusted manually.
Lower limit for
Cooling Mode and
Soft Dry Mode
Lower limit for Air Circulation Mode
The louver can be adjusted with in a range
“Airflow Direction Setting Button” is pressed.
34°
58°
Horizontal
Airflow Direction Manual Control
Upper limit
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– 19 –
MAC9611041C2
CS-MC120KE
No.
1
2
3
4
5
Accessories part
Installation plate
Installation plate fixing screw
Remote control
Battery
Air purifying filter
MODEL
MC120K
Piping size
Gas
1/2"
Liquid
1/4"
Rated
Length
7
Max.
Elevation
(m)
5
Max.
Piping
Length
(m)
15
Additional
Refrigerant
(g/m)
15
No.
6
7
8
Accessories part
Clamping cover of piping
Vinyl tape
Vinyl tape
Qty.
1
3
1
Installation Information
Attached accessories
Accessories: Flaring piping kit
CZ-4F5, 7, 10 AN
SELECT THE BEST LOCATION
•There should not be any heat source or steam near the unit.
•There should not be any obstacles blocking the air circulation.
•A place where air circulation in the room is good.
•A place where drainage can be easily done.
•A place where noise prevention is taken into consideration.
•Do not install the unit near the door way.
•Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.
•Indoor unit of this room air conditioner shall be installed on the wall in a height of at least 2.3 m.
•If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the
condenser is not obstructed.
•There should not be any animal or plant which could be affected by hot air discharged.
•Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.
•Do not place any obstacles which may cause a short circuit of the discharged air.
•If piping length is over the rated length, additional refrigerant should be added as shown in the table.
INDOOR UNIT
OUTDOOR UNIT
Qty.
1
6
1
2
2
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