Panasonic CS-XA9DKD User manual

Order No. GMAC0507058C3
CS-XA9DKD
CU-XA9DKD
CS-XA12DKD
CU-XA12DKD
Air Conditioner
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-techical 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.
1 Features 2
2 Functions 3
3 Product Specifications 6
4 Dimensions 10
5 Refrigeration Cycle Diagram 11
6 Block Diagram 12
7 Wiring Diagram 13
8 Operation Details 14
9Installation instructions 27
10 2-way, 3-way Valve
11 Disassembly of The Parts
12 Troubleshooting Guide
13 Technical Data
14 Exploded View
15 Replacement Parts List
16 Exploded View
17 Replacement Parts List
18 Electronic Circuit Diagram
CONTENTS
Page Page
Guangzhou Matsushita Air Conditioner Co., Ltd.
(GMAC) All rights reserved. Unauthorized copying
and distribution is violation of law.
C
R
38
45
49
51
53
54
55
56
57
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R
O
2
hr DELAY
OFFON
STD
FANSPEED
AUTO
AIR SWING
AUTO
AUTO
COOL
DRY
HEAT
OFF/ON
TEMP
MODE
FAN SPEED
AIR SWING
OFF ON
CANCEL SELECT
TIMER
RESET
O
2
OFF
--------------------------------------

2
1 Features
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
12-hour Timer Setting
■
■
Removable and washable front panel
■
■
Prevent compressor reverse cycle
■
■
High Efficiency
■
■
Oxygen mode to enrich oxygen in the room
■
■
Auto Restart Control
Automatically restart after power failure
Comfort Environment
■
■
■
■Deodorization control.
■
■

O2
Operation START/STOP
Operation Mode Selection
Automatic Operation
Cooling Mode Operation
Soft DryMode Operation
Air Circulation Mode Operation
Mode
Indoor Fan Speed Selection
AUTO
Vertical Airflow Direction Control
Automatic Vertical Airflow Control
Manual Control
Timer Operation Selection
12-hour Timer Setting
(set the ON/OFF Timer hourly later)
Set /Cancel Timer Operation
On timer and OFF Timer setting
and cancellation
2 Functions
Remote Control
3
MODE
FAN
SPEED
AIR
SWING
Room Temperature Setting
Temperature Setting(16 to 30 )
TEMP
ON TIMER
OFFTIMER
TIMER
SELECT/
CANCEL
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Heating, Coolling, Soft Dry Operation
Auto Operation
Operation with 2 higher than
standard temperature.
Operation with standard temperature.
Operation with 2 lower than
standard temperature.
Reset point
RESET
• Press with a pin to clear the memory data.
O
2
hr DELAY
OFFON
STD
FAN SPEED
AUTO
AIR SWING
AUTO
AUTO
COOL
DRY
HEAT
OFF/ON TEMP
MODE
FAN SPEED
AIR SWING
OFF ON
CANCEL SELECT
TIMER
RESET
O2
OFF
Low Speed
Medium Speed
High Speed
Automatic Speed
Oxygen Mode operation OFF/ON
STD
STD
STD
AUTO
HEAT
COOL
DRY
AUTO
HEAT
COOL
DRY
AUTO
Turn on/off the air conditionor
When stop the operation by pressing
OFF/ON button,the cursor key “ “
points to .
OFF
OFF/ON

Indoor Unit
When the remote control cannot be used or
for repairing and testing ,please use this
button.
Power Switch ON/OFF
Signal Receiving Sound Control
Keep pressing this button for 10seconds to turn
on or turn off the signal receiving sound.
Operation Indication Lamps
Power (Green)
(Green)
Lights up in operation;
Blinks within 20 seconds
during Auto Operation
Mode judging.
Lights up in Oxygen mode
operation
Operation Mode
Heating/Cooling/Soft Dry /Auto Operation
Time Delay Safety Control
The unit will restart operation in 3-4
minutes after each pause.
7-Minutes Time Save Control
7-minutes automatic restarting at Cooling
Operation
4
Auto Switch
Button
Anti-freezing Control for the Evaporator
Cooling or Soft DryOperation
High, Med, Low
Auto Fan Speed
Indoor Fan Speed Control
Vertical airflow
The louver automaticallyswings up and down
or can be manual adjusted byremote control
Horizontal airflow
The louver can be manuallyadjusted byhand.
Airflow Direction Control
Delayed On-timer Control
For cooling or soft drymode, the unit
starts 15 minutes before the set time with
the remote control.
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
(Orange)
O
2 AIR
TIMER
Lights up in Timer operation
Oxygen Operation
To supply oxygen enrich air
Warm Booting Control
Indoor fan starts running when temperature
of evaporator reaches 30 or above.
When temperature of evaporator is between
30 and 34 ,indoor fan will run at Super Low
or Low speed.
When temperature of evaporator reaches 34 ,
Warm Booting Operation ends.

Outdoor Unit
5
Panasonic
Anti-reverse Protection
To protect the compressor from reverse
rotation when power off suddenly.
Overload Protector
The 2-step Overload Protector will trip to
protect the compressor when
1)Temperature of compressor reaches 140
2)High temperature or current enters into the
compressor
60-seconds Test Operation Control
Once the compressor is activated, it
does not stop within 60 seconds. It
stops immediately with remote control
stop signal by pressing OFF/ON
button.
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Anti-freezing operation for outdoor unit
(during Heating Mode Operation only)
Temperature of the condenser is tested
by TRS.
Deicing Control
4-way Valve Control
If the unit is stopped during Heating
Operation,the 4-way valve will remain in
heating mode operation for 5 minutes.

6
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
3 Product Specifications
Cooling Capacity
Heating Capacity
Moisture Removal
Power Source
Airflow Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
Electrical
Data
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length
(Number of core-wire)
Dimensions
Net Weight
Compressor
Air Circulation
Unit
kW
L/h
kW
Phase
V
Cycle
OUTLET
INTAKE
m /min
3
m /min
3
m /min
3
m /min
3
dB(A)
W
A
W/W
A
Input
Running Current
EER/COP
Starting Current
Inner Diameter
Length
Height
Width
Depth
Type
Motor Type
Rated output
type
Motor type
Fan
Speed
Low
Med
High
Rated Output
Input
Inch
Inch
Inch
Inch
mm
m
mm
mm
mm
kg
W
W
W
rpm
rpm
rpm
CS-XA9DKD CU-XA9DKD
2.70
3.10
1.5
Single
220
50
SIDE VIEW TOP VIEW
7.0
8.0
9.7
-
-
-
-
Cooling:high47
Heating:high48
Cooling:high38,Low30
Heating:high38,Low29
Cooling:830
Heating:790
Cooling:4.00
Heating:3.90
Cooling:3.25
Heating:3.92
20.2
G:half union3/8"
L:half union1/4"
G:gas side3/8"
L:liquid side1/4"
G:3-way valve3/8"
L:2-way valve1/4"
G:gas side3/8"
L:liquid side1/4"
-
-
-
-
-
-
-
m3 core-wire/1.0mm2
280
799
183
9
540
780
289
34
-
-
-
Cross-flow fan
Induction(4 pole)
37.4
17
Rotary(1 cylinder)
Rolling piston type
Induction(2 pole)
750
Propeller fan
Induction(6 pole)
58.4
20
-
920 60
1050 60
1260 60
-
760 60
-
14
0.65
1.3

7
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Specifications are subject to change without notice for further improvement.
* 60g for air purging is not included.
Heat
Exchanger
Description
Tube Material
Fin Type
FPI
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R410A)
Thermostat
Protection Device
Capillary
Air Filter
Refrigerant Circulation Control Device
Compressor Capacitor
Fan Motor Capacitor
Unit CS-XA9DKD CU-XA9DKD
Length
Circulation
Inner Diameter
mm
(c.c)
g
mm
L/min
mm
μ
F,V
μ
F,V
Evaporator
Copper
Slot type
(Plate fin configuration,forced draft)
2x15 2X24
Condenser
Copper
Corrugation type
21
610x252x25.4
-
-
-
-
-
-
-
Electronic Control
P.P. Honeycomb
-
19
Capillary Tube
1080(*)
-
O.L.P.(230V,37A)
815 10
10.4 0.2
1.5
μ
F,1.8 440V
μ
F , 400V
Dimensions
Rows/Stage
Capillary
μ
F,30 370V
1.5
SUNISO 4GDID or ATMOS
M60 or ATMOS 56M
X504x36.38
630 20
11.7 0.2
1.5
725.1
696

8
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Cooling Capacity
Heating Capacity
Moisture Removal
Power Source
Airflow Method
Air Circulation Indoor Air (low)
Indoor Air (medium)
Indoor Air (high)
Outdoor Air
Noise Level
Electrical
Data
Piping Connection Port(Flare piping)
Piping Size(Flare piping)
Drain Hose
Power Supply Cord Length
(Number of core-wire)
Dimensions
Net Weight
Compressor
Air Circulation
Unit
kW
L/h
kW
Phase
V
Cycle
m /min
3
m /min
3
m /min
3
m /min
3
dB(A)
W
A
W/W
A
Input
Running Current
EER/COP
Starting Current
Inner Diameter
Length
Height
Width
Depth
Type
Motor Type
Rated output
type
Motor type
Fan
Speed
Low
Med
High
Rated Output
Input
Inch
Inch
Inch
Inch
mm
m
mm
mm
mm
kg
W
W
W
rpm
rpm
rpm
CS-XA12DKD CU-XA12DKD
3.40
3.80
1.8
Single
220
50
7.2
8.0
9.3
-
-
-
-
Cooling:high48
Heating:high48
Cooling:high39,Low32
Heating:high39,Low31
Cooling:1.07k
Heating:1.00k
Cooling:4.90
Heating:4.80
Cooling:3.18
Heating:3.80
23.6
-
-
-
-
-
-
-
m3 core-wire/1.0mm2
280
799
183
9
540
780
289
34
-
-
-
Cross-flow fan
Induction(4 pole)
37.4
18
Rotary(1 cylinder)
Rolling piston type
Induction(2 pole)
900
Propeller fan
Induction(6 pole)
58.4
20
-
980 60
1090 60
1260 60
-
760 60
-
14
0.65
1.3
OUTLET
INTAKE
SIDE VIEW TOP VIEW
G:half union1/2”
L:half union1/4"
G:gas side3/8"
L:liquid side1/4"
G:3-way valve1/2”
L:2-way valve1/4"
G:gas side3/8"
L:liquid side1/4"

9
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Heat
Exchanger
Description
Tube Material
Fin Type
FPI
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R410A)
Thermostat
Protection Device
Capillary
Air Filter
Refrigerant Circulation Control Device
Compressor Capacitor
Fan Motor Capacitor
Unit CS-XA12DKD CU-XA12DKD
Length
Circulation
Inner Diameter
mm
(c.c)
g
mm
L/min
mm
μ
F,V
μ
F,V
Evaporator
Copper
Slot type
(Plate fin configuration,forced draft)
2x15 2X24
Condenser
Copper
Corrugation type
21
610x252x25.4
-
-
-
-
-
-
-
Electronic Control
P.P. Honeycomb
-
21
Capillary Tube
O.L.P.(230V,30A)
545 10
12.5 0.2
1.5
μ
F,1.8 440V
Specifications are subject to change without notice for further improvement.
μ
F , 400V
Dimensions
Rows/Stage
Capillary
μ
F,30 370V
1.5
SUNISO 4GDID or ATMOS
M60 or ATMOS 56M
1050(*)
X504x36.8
609 20
10.0 0.2
1.4
* 60g for air purging is not included.
725.1
696

4 Dimensions
Indoor Unit
10
CS-XA9DKD
CS-XA12DKD
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
BA
254
(631)
(382) (118)
(131)
95
(420) (50)
Front View
<Back View> Installation Plate Hook
Gas Side
Liquid
Side
Drain Port
Air intake
280
Side view
183
Air outlet
Left Piping
Hole
Right Piping
Hole
(100)
141
17.1
57
Unit:mm
Installation plate (Front View)
O
2
hr DELAY
OFFON
STD
FAN SPEED
AUTO
AIR SWING
AUTO
AUTO
COOL
DRY
HEAT
OFF/ON TEMP
MODE
FAN SPEED
AIR SWING
OFF ON
CANCEL SELECT
TIMER
RESET
O2
OFF

Outdoor Unit
Unit : mm
11
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
10cm
or more
10cm
or more
100cm
or more
48
18.6
540
21
320
352
INVERTER
780 57
570
289
<Top View>
105
CU-XA9DKD
CU-XA12DKD
5 Refrigeration Cycle Diagram
PIPING TEMP.
SENSOR
INTAKE AIR
SENSOR
INTAKE AIR
SENSOR
PIPING TAMP
SENSOR
。
PIPING TAMP
SENSOR
。
EVAPORATOR
CONDENSOR
2-WAY VAVLE
3-WAY VAVLE
4-WAY VAVLE

12
6 Block Diagram
CS-XA9DKD/CU-XA9DKD CS-XA12DKD/CU-XA12DKD
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
POWER SUPPLY
AC220V 50Hz
4 3
2 1
O.L.P
FUSE
FM
COMPRESSOR
VACUUM
PUMP
OUTDOOR
FAN MOTOR
4-WAY
VALVE
INDOOR UNIT OUTDOOR UNIT
INTDOOR
FAN MOTOR
OUTDOOR
PIPING SENSOR

13
7 Wiring Diagram
C-R
C-S
INDOOR FAN MOTOR RESISTANCE( )
CONNECTING
Y-B M（）
Y-R A（）
CS-XA9DKD
CWA921116
331
312
COMPRESSOR RESISTANCE( )
CONNECTING CWB092329
2.998
3.824
CWA951452
Y-B
Y-R
OUTDOOR FAN MOTOR RESISTANCE( )
CONNECTING
272
248
CS-XA12DKD
331
312
CWA951452
272
248
CWB092281
2.803
4.402
CU-XA9DKD CU-XA12DKD
CU-XA9DKD CU-XA12DKD
CS-XA9DKD/CU-XA9DKD
CS-XA12DKD/CU-XA12DKD
R : RED
BL : BLACK
B : BLUE
BR : BROWN
O : ORANGE
GRY : GREY
G : GREEN
Y : YELLOW
W : WHITE
Y/G : YELLOW/GREEN
P : PINK
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
CWA921116
1
3
W
1(L)2(N) 345
1(L)2(N) 345
Wireless Remote control
Indicator
complete
W
W
W
W
W
W
W
W
W
W
W
ELECTRONIC CONTROLLER BR
R
O
Y
P
STEPPING
MOTOR
B
R
Y
FAN MOTOR
W
BR
BL
SENSOR(PIPING TEMP.)
POWER SUPPLY
CORD
POWER SUPPLY
CORD
AC 220V 50Hz，
AC 220V 50Hz，
AUTO SWITCH
TERMINAL BOARD
TERMINAL BOARD
INDOOR UNIT
OUTDOOR UNIT
Y/G
Y
BL
BR
B
THERMAL FUSE
102 (250V 3A)℃
BL BL
RHOT(RED)
BFM(BLU)
WAC(WHT)
COMPRESSOR TERMINAL
YELLOW
RED
S
BLUE
R
C
TRADE MARK
Y/G
COIL OF
4-WAY VAVLE
Y
O.L.P
COMPRESSOR
RB
B
CAPACITOR
Y/G
FAN MOTOR
CAPACITOR
CAPACITOR
SENSOR
(PIPING TEMP.)
BL
Y
VACUUM PUMP
B
R
PUMP(YLW)
Y
R
B
R
B

14
8 Operation Details
8.1 .Cooling Mode Operation
When selecting the Cooling Mode Operation, the unit will operate according to the setting by the Remote Controller or
the control panel on the indoor unit and the operation is as the following.
Time Delay Safety Control
3 min.----If the compressor stops, it will not restart within 3 minutes.(Protection of compressor).
7 Minutes Time Save Control
7 min.----The unit will automatically operate in 7 minutes even if the room temperature is not reached.
(Prevention of raising the humidity)
Evaporator
Temperature
()℃10
2
Restart
4 minutes
Compressor ceases
Time
Anti-Freezing Control
If temperature of evaporator is lower than 2 continuously
for 4 minutes, the compressor will cease to prevent the
evaporator from freezing. Fan speed setting will not be
changed.
When temperature of evaporator reaches 10 ,compressor
will restart.
During Cooling Mode Operation, the Time Delay Safety
Control is available.
℃
℃
※
Indoor Fan
STOP
Slow Slow
STOP STOP
Slow Slow
STOP
ON
Compressor ON
1 Fan speed will be at Hi till the compressor ceases (set temperature reached).
2 Fan speed will be at Me when the compressor restarts.
“”
“”
※
※
40＂30＂40＂30＂20＂160＂
※1※2
Automatic Fan Speed Mode
During Cooling Mode Operation, use remote controller to select Automatic Fan Speed.
Deodorization control.
Slow
Compressor Reverse Rotation Protection Control
If the compressor is operating continuously for 5 minutes and the temperature difference between in take air
and indoor heat exchanger is 2.5 or less for 3 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
℃
Compressor starts for 5 minutes
T 2.5 for 2 minutes
≥
▲≤ ℃
Compressor
OFF
Compressor restarts
(3 minutes waiting)
▲T= Intake air temperature - Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD

15
Intake air temperature
Evaporater
temperature
10
2
Start
Stop
1.5
Basic Time
Compressor
Indoor Fan
Outdoor Fan
Operation Indicator
11
37
Operation status
Time delay safety control
Minimum 60 seconds forced operation
7 minutes time save control
Anti-freezing Control
Time
d-g
g-h
h-o
q-t
:
:
:
:
Operate
Stop
abcdefghi j klmnopqrstuvwxyz
4’
1’
Time Graph for Cooling Operation
Set temperature
31
29
8.2. Soft Dry Mode Operation
When selecting Soft Dry mode operation, the operation will be cooling until the room temperature reaches the set temp on
remote control, and then Soft Dry will be activated. (During Soft Dry Mode the fan of indoor unit will operate at super low
speed. The soft dry mode will run for less than 10 minutes.)
Once Soft Dry mode operation is turned off, indoor fan, compressor and outdoor fan will stop for 6 minutes.
COOLING(OFF)
DRY(ON
DRY(OFF)
DRY
COOLING COOLING(ON)
DRY(ON)
1.5
1.0
DRY(OFF)
Operation area
Time Delay Safety Protection
During soft dry operation, if the compressor ceased, it will not restart within 3 minutes.
Anti Freezing Control
Same as the denotation in Cooling Operation.
(During Soft Dry Mode Operation, compressor will stop for at least 6 min.)
(P14)
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
4-Way Valve

16
Automatic Fan Speed
During Soft Dry Operation, use remote controller to select Auto Fan Speed mode.
Indoor Fan Speed is at “Lo-”
70
T2
40
T1
Slo
Lo-
OFF
ON
OFF
10
6
70
T2
40
T1
10
Slo Slo
Lo-
ON
OFF OFF OFF
Indoor
fan
Compressor
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
Time Graph for soft dry operation
abcdef g hi jklmnopq rst u
Evaporator
temperature
10 C
o
2C
o
Basic Time
Comp.
Indoor Fan
Outdoor Fan
Operation Indicator
666
1
61 14
Operation status
Time
Operate
Stop
Cooling mode operation
Soft Dry Mode operation
Super
Low
Super
Low
Super
Low
Super
Low Low
1.5
Cooling mode operation activated
Intake Air temp
1.0
Cooling mode operation stopped
Soft mode operation activated
Soft dry mode operation stop
Cooling Mode Operation
Soft DryMode Operation
Soft DryMode Operation Stopped
Compressor Test Operation Control
Anti Freezing Control
a-c,p-r
c-p,r-u
e-f
j-l
q-t
:
:
:
:
:
Lo-
4-wayValve
Lo- Lo- Lo- Lo- Lo- Lo- Lo- Lo- Lo- Lo-

8.3. Heating Mode Operation
When selecting the Heating Mode Operation, the unit will operate according to the setting bythe Remote Controller and
the operation is as the following.
Time Delay Safety Control
Over Load protection Control
When temperature of indoor heat exchanger rises to 51 , outdoor fan will stop
when temperature of indoor heat exchanger falls to 49 , outdoor fan will restart.
When temperature of indoor heat exchanger rises to 65 or above, compressor stops, and will restart 4 minutes later.
4-way valve control
Anti-reversing Control
If the compressor stopped by switching off, turning off by remote controller, or power off, it will not restart within 3 minutes.
When room temperature reaches the set temperature on the remote controller, compressor stops and will not restart within
4 minutes.
3 minutes after the compressor stopped, indoor fan will stop for 1 minute. Then indoor fan will resume operation with the
speed at ”super low”.
Compressor
Stops
Compressor Restarts
4 minutes later
Indoor Heat Exchanger 65
Compressor
Stops
Compressor Restarts
3 minutes later
Compressor runs 5 min
T 5 last for 2 min
T= evaporator temperature - intake air temperature
If the compressor has been continuously running for 5 minutes or longer, and the difference of temperature between
intake air and evaporator is continuously lower than 5.0 or below for 2 minutes, the compressor will stop , and then
restart 3 minutes later.(Time Delay Protection Control is effective.)
During heating mode operation,4-way valve is at open mode.
During heating mode operation,if the unit turned off, the 4-way valve will remain
at open mode for 5 minutes.
Low
Super Low
Super Low
Indoor Fan
Stop
Indoor Fan
Stop
Indoor Heat
Exchanger
Indoor Heat
Exchanger
34
30
()
()
Warm Booting Control
When turning on the unit by heating mode operation,indoor fan
will be activated when temperature of indoor heat exchanger
reaches 30 . (See the figure on the right)
Warm boot operation ends when temperature of indoor heat
exchanger reaches 34 .
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
17

abcdefghi jklmnopq r
2
42
34
32
30
OFF
ON
1'
58'' 30
SLO SLO LO- SSLO SSLO
SSLO
SSLO
30'
150'
Indoor heat
exchanget
Temp.
Intake Temp.
Basic Time
Compressor
Indoor Fan
Outdoor Fan
Operation Indicator
4-way valve
Automatic Fan Speed
During Heating Operation, use remote controller to select Auto Fan Speed mode.
Indoor Fan Speed is between “Me”and “Slo”.
Me
Lo
Lo-
SLo
SLo
()
()
()
()
45
41
34
30
45
41
34
30
38
30
28
15
38
30
28
15
Temperature of heat exchanger
Temperature of heat exchanger
Stop
Time
Time Graph for Heating Operation
Warm booting control(indoor fan Off)
Prevent cool air blowing out
Warm booting control(indoor fan Super Slo)
a-b
c-d
h-k,o-r
:
:
:
<Operation status>
Blink
Operate
Stop
Manual fan speed
Lo-/
SSLO
Lo-/
SSLo
Lo-/
SSLo
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
18

Deice Control
Deice operation is to protect the outdoor unit from freezing.
Normal Deice Operation
Deicing starts 30 minutes after heating mode operation or 60 minutes after the latest deicing operation. If temperature of
outdoor piping, tested by TRS, falls to -3 (TRS OFF) or below for continuously 50 seconds, deicing operation starts.
Overload Deicing Operation
During heating operation, if the accumulative stopping time of outdoor fan reaches 60 minutes,
deicing operation will start 1 minute after compressor starts.
Deicing operation ends under conditions below
(a) After 12 minutes.
(b) Temperature of outdoor unit rises to 4 .
(c) As the illustration showed bellow and due to Time Delay (Td), deicing won’t ends immediately.
Deicing Operation Time(T)
3min
3min T 7min
7 min T 9min
T 9min
Deicing Operation Time(T)
3min
3min T 7min
7min T 9min
T 9min
Td(s)
0
60
120
120
Td(s)
0
60
120
120
Once deicing operation starts, it won’t end until 60 seconds later.
When deicing operation ends, compressor will stop for 30 seconds, and 4-way valve remains at cooling mode operation
for 10 seconds.
Time Graph for Normal Deicing Operation
Time
<Operation status>
<Operation status>
A-b Deicing confirmation
c-g Deicing operation(time reset)
h-j,u-w Warm Booting
o-r Deicing(TRS )
42
34
30
Indoor Piping Temp.
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Slo Lo
10S20S 20S 20S 20S 20S 10S 20STd
Operation
Stop
Blink
or
Basic Time
Compressor
Indoor Fan
Outdoor Fan
Operation LED
4-way valve
max60'
max12' max12'
max60'
60'
Slo Lo
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
19

Time Graph for Overload Deicing
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49→
Max
12
60'
<Operation status>
Overload controla-i
i-l Overload deicing(timer)
l-m: Warm booting control
m-r Overload control
：
：
：
Out door fan stop for 60' accumulatively
20 20
51→
Outdoor Heat
Exchanger
Outdoor Heat
Exchanger
10 20
Basic time
Compressor
Indoor fan
Outdoor fan
Operation Indicator
4-way valve
Operation
Stop
Blink
Time
CS-XA9DKD / CU-XA9DKD / CS-XA12DKD / CU-XA12DKD
20