TCL TAC-07CSK User manual

WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. IMPORTANT NOTICE ···································2
2. TECHNICAL SPECIFICATION ·····················3
3. OPERATION DETAILS ····································6
4. WIRING DIAGRAM ············· 14
5. EXPLOSION VIEW ····························20
6. PARTS LIST ·············28
Models
TAC-07CS/KTAC-09CS/K
TAC-12CS/KTAC-18CS/K
TAC-24CS/KTAC-07CHS/K
TAC-09CHS/KTAC-12CHS/K
TAC-18CHS/KTAC-24CHS/K
OB207t-1qxp 25/9/97 8:51 PM Page 1
TCL
SERVICE MANUAL
No.TE040427

IMPORTANT NOTICE
This service manual is intended for use by individuals possessing adequate
backgrounds of electrical, electronic and mechanical experience. Any
attempt to repair the appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in
connection with its use.
The information, specifications and parameter are subject to change due to
technical modification or improvement without any prior notice. The
accurate specifications are presented on the nameplate label.
How to order spare parts
To have your order filled promptly and correctly, please furnish the
following information:
1. Model No. with Indoor or Outdoor
2. No. in the Explosion View
3. Part Name
4. The quantity you ordered
TCL Air Conditioner Service ManualTCL Air Conditioner Service ManualTCL Air Conditioner Service Manual
TCL Air Conditioner Service Manual
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TCLAir Conditioner Service Manual
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Technical Specifications
Model No. TAC-07CS/KTAC-07CHS/KTAC-09CS/KTAC-09CHS/K
Type Cooling Only Heating Pump Cooling Only Heating Pump
Control type Remote Remote Remote Remote
Rated cooling capacity Btu/h 7,000 7,000 9,000 9,000
Rated heating capacity Btu/h N/A 7,500 N/A 9,500
EER for cooling Btu/h.w 9.6 9.6 9.6 9.6
COP for heating W/W N/A 2.8 N/A 2.8
Moisture removal Liters/h 0.8 0.8 0.8 0.8
High dB(A) 36 36 36 36
Med. dB(A) 32 32 32 32
Indoor noise level at
cooling Low dB(A) 29 29 29 29
Outdoor noise level dB(A) 50 50 50 50
Electrical Data
Power supply 220-240V~/50Hz
Voltage Range V
Cooling A 4.24.24.2 4.2
Rated current Heating AN/A 4.1N/A 4.1
Cooling W 895 895 900 900
Rated input Heating WN/A 880 N/A 880
Refrigerating System
Refrigerant/Charge Gram R22/700g R22/700g R22/700g R22/700g
Type Rotary Rotary Rotary Rotary
Model ------------------ ----------------- ------------------ ------------------
LRA A ------ ------- ------ ------
Compressor
MFG ----------------- ----------------- ---------------- -----------------
Evaporator Louver fin and Grooved tube type (φ7)
Condenser Corrugated fin and Grooved tube type (φ9.53)
Expansion device Capillary tube
Defrosting system Microcomputer controlled reverse system
Fan System
Indoor air circulation m3/h 430 430 430 430
Indoor fan type Cross flow Cross flow Cross flow Cross flow
Cooling rpm 1000/950/900 1000/950/900 1000/950/900 1000/950/900
Heating rpm N/A 970/900/800 N/A 970/900/800
Dry rpm 900 900 900 900
Indoor fan speed
H/M/L
Sleep rpm 650 650 650 650
Indoor fan motor output W 12 12 12 12
Outdoor air circulation m3/h --- --- --- ---
Outdoor fan type Propeller fan Propeller fan Propeller fan Propeller fan
Outdoor fan speed rpm 895 895 895 895
Outdoor fan motor output W 31 31 31 31
Connections
Refrigerant coupling Flare type
Gas Inches 3/8 3/8 3/8 3/8
Connecting Pipe Liquid Inches 1/41/41/41/4
Connecting Wiring Size ×Core
number
Drainage Pipe O.D 16mm
Others
Suitable area m212~19 12~19 12~19 12~19
Indoor mm 710×250×179 710×250×179 710×250×179 710×250×179Net dimensions
(W x H x D) Outdoor mm 600×500×232 600×500×232 600×500×232 600×500×232
Indoor kg 7.5 7.5 7.5 7.5
Net weight Outdoor kg 25 25 25 25
Indoor mm 805×325×270 805×325×270 805×325×270 805×325×270Packing dimensions
(W x H x D) Outdoor mm 745×352×542 745×352×542 745×352×542 745×352×542
Indoor kg 10 10 10 10
Gross weight Outdoor kg 28 29 28 29
Loading Capacity 40’/40’HC 132/280/318 132/280/318 132/280/318 132/280/318

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Model No. TAC-12CS/KTAC-12CHS/KTAC-18CS/KTAC-18CHS/K
Type Cooling Only Heating Pump Cooling Only Heating Pump
Control type Remote Remote Remote Remote
Rated cooling capacity Btu/h 12,000 12,000 18,000 18,000
Rated heating capacity Btu/h N/A 12,800 N/A 19,000
EER for cooling Btu/h.w 9.2 9.2 8.8 8.8
COP for heating W/W N/A 2.65 N/A 2.65
Moisture removal Liters/h 1.0 1.0 1.0 1.5
High dB(A) 38 38 42 42
Med. dB(A) 36 36 40 40
Indoor noise level at
cooling Low dB(A) 32 32 36 36
Outdoor noise level dB(A) 52 52 5858
Electrical Data
Power supply 220-240V~/50Hz
Voltage Range V
Cooling A 5.6 5.6 9.6 9.6
Rated current Heating A N/A 5.9 N/A 9.0
Cooling W 1270 1270 2100 2100
Rated input Heating W N/A 1335 N/A 1970
Refrigerating System
Refrigerant/Charge Gram R22/870g R22/870g R22/1700g R22/1700g
Type Rotary Rotary Rotary Rotary
Model ------------------ ----------------- ------------------ ------------------
LRA A ------ ------- ------ ------
Compressor
MFG ----------------- ----------------- ---------------- -----------------
Evaporator Louver fin and Grooved tube type (φ7)
Condenser Corrugated fin and Grooved tube type (φ9.53)
Expansion device Capillary tube
Defrosting system Microcomputer controlled reverse system
Fan System
Indoor air circulation m3/h 530 530 800/850 800/850
Indoor fan type Cross flow Cross flow Cross flow Cross flow
Cooling rpm 1150/1060/900 1150/1060/900 1300/1200/1100 1300/1200/1100
Heating rpm N/A 1150/1060/900 N/A 1300/1200/1100
Dry rpm 900 900 840 840
Indoor fan speed
H/M/L
Sleep rpm 650 650 900/1000 900/1000
Indoor fan motor output W 12 12 25 25
Outdoor air circulation m3/h --- --- --- ---
Outdoor fan type Propeller fan Propeller fan Propeller fan Propeller fan
Outdoor fan speed rpm 860 860 820 820
Outdoor fan motor output W 55 55 90 90
Connections
Refrigerant coupling Flare type
Gas Inches 1/21/21/21/2
Connecting Pipe Liquid Inches 1/4 1/4 1/41/4
Connecting Wiring Size ×Core
number
Drainage Pipe O.D 16mm
Others
Suitable area m216~28 16~28 30~40 30~40
Indoor mm 770×250×179 770×250×179 1036×313×204 1036×313×204Net dimensions
(Wx H x D) Outdoor mm 700×255×540 700×255×540 760×255×540 760×255×540
Indoor kg 8.0 8.0 14 14
Net weight Outdoor kg 31 32 42 43
Indoor mm 863×325×270 863×325×270 1103×395×280 1103×395×280Packing dimensions
(W x H x D) Outdoor mm 803×380×595 803×380×595 863×376×605 863×376×605
Indoor kg 10 10 19 19
Gross weight Outdoor kg 34 35 44 45
Loading Capacity 40’/40’HC 111/238/276 111/238/276 90/188/218 90/188/218

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Model No. TAC-24CS/KTAC-24CHS/K
Type Cooling Only Heating Pump
Control type Remote Remote
Rated cooling capacity Btu/h 24,000 24,000
Rated heating capacity Btu/h N/A 26,000
EER for cooling Btu/h.w 9.0 9.0
COP for heating W/WN/A 2.55
Moisture removal Liters/h 2.2 2.2
High dB(A) 47 47
Med. dB(A) 44 44
Indoor noise level at
cooling Low dB(A) 40 40
Outdoor noise level dB(A) 58 58
Electrical Data
Power supply 220-240V~/50Hz
Voltage Range V
Cooling A 13 13
Rated current Heating A N/A 13.8
Cooling W 2600 2600
Rated input Heating WN/A 2800
Refrigerating System
Refrigerant/Charge Gram R22/2500g R22/2500g
Type Rotary Rotary
Model ------------------ -----------------
LRA A ------ -------
Compressor
MFG ----------------- -----------------
Evaporator Louver fin and Grooved tube type (φ7)
Condenser Corrugated fin and Grooved tube type (φ9.53)
Expansion device Capillary tube
Defrosting system Microcomputer controlled reverse system
Fan System
Indoor air circulation m3/h 1000 1000
Indoor fan type Cross flow Cross flow
Cooling rpm 1300/1200/1100 1300/1200/1100
Heating rpm N/A 1300/1200/1100
Dry rpm 1000 1000
Indoor fan speed
H/M/L Sleep rpm 1000 1000
Indoor fan motor output W35 35
Outdoor air circulation m3/h --- ---
Outdoor fan type Propeller fan Propeller fan
Outdoor fan speed rpm 850 850
Outdoor fan motor output W110 110
Connections
Refrigerant coupling Flare type
Gas Inches 5/8 5/8
Connecting Pipe Liquid Inches 3/8 3/8
Connecting Wiring Size ×Core
number
Drainage Pipe O.D 16mm
Others
Suitable area m235~48 35~48
Indoor mm 1036×313×204 1036×313×204
Net dimensions
(Wx H x D) Outdoor mm 890×307×660 890×307×660
Indoor kg 16 16
Net weight Outdoor kg 57 60
Indoor mm 1103×395×280 1103×395×280Packing dimensions
(Wx H x D) Outdoor mm 990×405×705 990×405×705
Indoor kg 20 20
Gross weight Outdoor kg 63 65
Loading Capacity 40’/40’HC 66/142/162 66/142/162
Note: The technical specifications is only reference.

6
Note: Each mode and relevant function will be further specified in following pages.
SLEEP FAN
TIMER SWING
ON/OFF
MODE
MID
SWING
AUTO
DRY
FAN
HEAT
COOL
FEEL
SLEEP
TIMER ON
HIGH
LOW
TMIER OFF
The remote controller transmits signals to the system.
Remote controller
1
2
4
3
5
6
7
8
8
4
MODE button
FAN SPEED control button
UP button (TOO COOL button)
DOWN button (TOO WARM button)
ON/OFF button
SLEEP button
VANE control button
TIMER button
Used to select the type of operation mode: Feel,
Cooling, Dry, Fan and Heating(Only for Heat Pump).
Used to select the indoor fan motor speed:
Auto, High, Mid and Low.
Used to increase the set room temperature
and time.
Used to decrease the set room temperature
and time.
Used to set or cancel sleep mode operation.
Used to start and stop operation
when pressed.
Used to adjust airflow direction.
Used to select TIMER operation.
Remote controller
6
2
5
3
7
1
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TCL Air Conditioner Service Manual
Operation Details
Remote Control
The remote controller is not presetted as Cooling Only Air Conditioner or Heat Pump by manufacturer.
Each time after the remote controller replace batteries or is energized, the arrowhead will flashes on the front of
Heat or Cool on LCD of the remote controller.
User can preset the remote controller type depending on the air conditioner type you have purchased as
follows:
Press any button when the arrowhead flashes on the front of Cool , Cooling Only is set.
Press any button when the arrowhead flashes on the front of Heat , Heat Pump is set.
If you don t press any button within 10 seconds, the remote controller is preset as Heat Pump automatically.
Note :
If the air conditioner you purchased is a Cooling Only one, but you preset the remote controller as Heat Pump, it
doesn t bring any matter. But if the air conditioner you purchased is a Heat Pump one, and you preset the
remote controller as Cooling Only, then you CAN NOT preset the Heating operation with the remote controller.

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Elctronic Controller
1. Safety Control
(1) Time Delay Safety Control
 3 minutes delay for compressor---The compressor is ceased for 3minutes to balance the pressure in the
refrigeration cycle in order to protect the compressor.
 2 minutes delay for 4-way valve---The 4-way valve is ceased for 2 minutes to prevent the
refrigerant-gas abnormal noise when the HEATING operation is OFF or switch to the other operation
mode.
 20 seconds delay for indoor fan--- When the assistant thermistor turns off, the indoor fan operates in
low speed for 20 seconds to release the heat of indoor unit.
(2) Indoor Pipe Temperature Sensor Frost Prevention Control
When the indoor pipe temperature sensor reads 0℃or below for 5 minutes, the indoor pipe temperature
sensor frost prevention control starts. The compressor and outdoor fan stop and indoor fan operates at high
speed for 3 minutes. After that, if the indoor pipe temperature sensor reads less than 5℃this control
prolonged until the indoor pipe temperature sensor reads 5℃or more.
(3) High Temperature Protection Control
During HEATING operation, the outdoor fan motor and compressor are controlled by the indoor pipe
temperature to prevent the high temperature of compressor.
Outdoor fan OFF: 52℃
Outdoor fan ON:48℃
Compressor OFF:62℃
Compressor ON:48℃
2. “I Feel” Mode Operation
(1) When the “I Feel” mode is selected, the operation mode and initial set temperature are determined by the
initial room temperature at start-up of the operation except to turn off the air conditioner and operates it
again.
(2) If the mode is change to “I Feel” mode from other mode, the “I Feel” mode doesn’t operate until compressor
stop for more than 3 minutes.
 In the “I Feel” mode , when the controller receives the up or down single of temperature, the set
temperature can adjust by 1℃upper or lower. The biggest you can adjust by 2℃upper or lower.
3. “COOLING” Mode Operation
(1) When the COOLING mode is selected without setting temperature, the system will set the set temperature at
26℃automatically with the AUTO FAN speed.
(2) When selecting the COOLING mode operation, the system will operate according to the setting by the
remote controller and the operation is as following:
Mode Initial room temperature
COOLING
DRY
HEATING for Heat Pump Type
FAN for Cooling Only Type
26℃or more
20℃to 25 ℃
Less than 20℃
Initial set temperature
24℃
18℃
23℃

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Room Temp.
Set TEMP. ＋1℃
Set TEMP. －1℃
Time More than 2 min More than 2 min More than 2 min More than 2 min More than 2 min
Indoor Fan Set Speed Set Speed Set Speed Set Speed Set Speed
Compressor ON OFF ON OFF ON
Outdoor Fan ON OFF ON OFF ON
4. “DRY” Mode Operation
(1) The system for DRY operation used the same refrigerant circle as the cooling circle.
(2) When the system operates in DRY mode ,at first it operates in cooling mode at 18℃for 3 minutes, and
then, the system operates in cooling mode with low speed that regards the temperature of the room
temperature sensor reads decrease 2℃as the set temperature. During the course of this, the fan speed
setted operation is failing but the vane motor can be controlled.
5. “HEATING” Mode Operation (Only available for Heat Pump)
(1) When the HEATING mode is selected without setting temperature, the system will set the temperature at 23
℃automatically with the AUTO FAN speed.
(2) When selecting the HEATING mode operation, the system will operate according to the setting by the
remote controller and the operation is as following:
Set Temp. ＋1℃
Set Temp. －1℃
Room Temp.
Time More than 2 min More than 2 min More than 2 min More than 2 min More than 2 min
Compressor ON OFF ON OFF ON
Outdoor fan ON OFF ON OFF ON
(3) In HEATING mode, the indoor fan motor is controlled by Cold Air Prevention Control.
(4) Cold Air Prevention Control
 The function is intend to prevent cold air from being discharged when the heating operation starts or
when defrosting.
 The indoor fan speed will be controlled as following:
 The vane angle is at the angle C(100°).
34
℃
30
℃
27
℃
25
℃
23
℃
OFF UL SetSpeed UL OFF UL
Indoor Pipe Temperature

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(5) Defrost
Defrosting of the outdoor heat exchange is controlled by the microprocessor with detection by the defrost
sensor.
 Defrost starting conditions
When the conditions of a) or b) is satisfy, the defrosting operation starts.
a) Under the heating operation, the compressor cumulative operation time exceeds 50 minutes and the
temperature of the outdoor defrost sensor reads lower than －8℃
b) Under the heating operation, the compressor cumulative operation time exceeds 50 minutes, if the
indoor pipe temperature sensor reads lower than 40℃continuously for 2minutes.
Note: If haven’t the outdoor pipe temperature sensor that use the condition b) to defrost, against
use the condition a).
 Defrost terminating conditions
When the condition c) or d) is satisfy, the defrosting operation stops.
c) The outdoor defrost sensor reads 15℃or more.
d) The defrosting time exceeds 10 minutes.
 Defrosting time chart
Outdoor Fan ON OFF ON
ReveringValve ON OFF ON
CompressorRelay ON OFF ON OFF ON
39S 5S Defrost Count MAX 12min 19S 15S t
(6) Assistant Thermistor Function
Assistant thermistor is add the thermitor of the electricity to rise the heating capacity automatically not
effected by the signal of the remote controller about assistant thermistor ON/OFF buttons.
1) When the condition all of A~G are satisfy, the assistant thermistor opens.
A. Under the heating operation, the compressor operates over than 3 minutes.
B. The indoor fan operates in normal.
C. The system operates not in defrosting.
D. The assistant thermistor turn off over than 30 seconds.
E. The set temperature is 3℃or more than the room temperature.
F. The room temperature sensor reads less than 22℃.
G. The indoor pipe temperature reads 43℃or less.
2) When one of the conditions of A~E is satisfy, the assistant thermistor is off.
A. The compressor is turned off.
B. The room temperature sensor reads 24℃or more.
C. The indoor pipe temperature sensor reads 48℃or more.
D. The indoor fan is stopped.
6. “FAN” mode operation

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The indoor fan motor always turns on at the set speed and the vane motor turns on at the set fattle.
7. 4-way Valve contro
HEATING ON
COOLING/DRY OFF
The 4-way valve reverses for 5 seconds right before start-up of the compressor as following chart:
COOLING/DRY HEATING
Compressor
4-wayValve
5s 5s
Outdoor Fan
8. “SLEEP” mode
When the SLEEP button is pressed, the SLEEP mode is selected as following:
 The indoor fan speed is set at the super low speed.
 When selecting COOLING/DRY operation with SLEEP mode, the set temperature will be raised by 1℃1
hour later and by 2℃2 hour later.
 When selecting HEATING operation with SLEEP mode, the set temperature will be dropped by 1℃1
hour later and 2℃2hour later.
 After the System operates in SLEEP mode for 8 hours, it will stop automatically.
9. Fan motor control
(1) Rotational frequency feedback control
The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the
microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the
target rotational frequency, the microprocessor adjusts fan motor electric to make the current rotational
frequency close to the target rotational frequency. With this control, when the fan speed is switched, the
rotational frequency changes smoothly.
(2) When the rotational frequency feedback signal has not output for 5 seconds (or when the microprocessor
can’t detect the signal for 5 seconds), the fan motor is regarded locked-up. Then the electric current to the
fan motor is shut off. 10 seconds later, the electric current is applied to the fan motor again. During the fan
motor lock-up, the POWER indicator lamp flashes on and off to show the fan motor abnormality.
10. Auto Fan Speed Control
(1) When the auto fan speed is selected, the indoor fan motor speed is automatically controlled by the room
temperature and the set temperature.
(2) In COOLING mode, the indoor fan motor operates as following:
Fan Speed
Hi
Me
Lo
Room temperature minus set temperature: 1℃2℃4℃
(3) In HEATING mode, the indoor fan motor operates as following;
FanSpeed
Hi
Mi
Lo
Roomtemperatureminussettemperature 1
℃2℃4℃