Gree GWH18TC-S3DBA1E User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWH18TC-S3DBA1E
GWH18TC-S3DBA2E
GWH18TC-S3DBA3E
GWH24TD-S3DBA1E
GWH24TD-S3DBA2E
GWH24TD-S3DBA3E
(Refrigerant R410A)
Models:

Service Manual
Table of contents
Table of Contents
Part Ⅰ: Technical Information.......................................................................1
1. Summary......................................................................................................................1
2. Specications..........................................................................................................2
2.1 Specication Sheet...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................4
2.3 Capacity Variation Ratio According to Temperature .........................................................4
2.4 Noise Curve......................................................................................................................5
2.5 Cooling and Heating Data Sheet in Rated Frequency .....................................................5
3. Outline Dimension Diagram........................................................................6
3.1 Indoor Unit........................................................................................................................6
3.2 Outdoor Unit .....................................................................................................................7
4. Refrigerant System Diagram......................................................................8
5. Electrical Part...........................................................................................................9
5.1 Wiring Diagram.................................................................................................................9
5.2 PCB Printed Diagram .....................................................................................................11
6. Function and Control......................................................................................13
6.1 Remote Controller Introduction .....................................................................................13
6.2 Operation of Smart Control (Smart Phone, Tablet PC) For Gree ...................................19
6.3 Operation of Smart Control (Smart Phone, Tablet PC) .................................................32
6.4 Brief Description of Modes and Functions......................................................................45
Part Ⅱ: Installation and Maintenance .................................................53
7. Notes for Installation and Maintenance..........................................53
8. Installation................................................................................................................56
8.1 Installation Dimension Diagram......................................................................................56
8.2 Installation Parts-checking ............................................................................................58
8.3 Selection of Installation Location....................................................................................58
8.4 Electric Connection Requirement ..................................................................................58
8.5 Installation of Indoor Unit................................................................................................58
8.6 Installation of Outdoor Unit.............................................................................................61
8.7 Vacuum Pumping and Leak Detection ...........................................................................62
8.8 Check after Installation and Test Operation ...................................................................62

Service Manual
Table of contents Table of contents
9. Maintenance............................................................................................................63
9.1 Precautions before Maintenance....................................................................................63
9.2 Error Code List ...............................................................................................................64
9.3 Troubleshooting for Main Malfunction ............................................................................67
9.4 Troubleshooting for Normal Malfunction.........................................................................83
10. Exploded View and Parts List ..............................................................85
10.1 Indoor Unit....................................................................................................................85
10.2 Outdoor Unit .................................................................................................................91
11. Removal Procedure.......................................................................................95
11.1 Removal Procedure of Indoor Unit ...............................................................................95
11.2 Removal Procedure of Outdoor Unit ..........................................................................110
Appendix:......................................................................................................................121
Appendix 1: Reference Sheet of Celsius and Fahrenheit ..................................................121
Appendix 2: Conguration of Connection Pipe...................................................................121
Appendix 3: Pipe Expanding Method .................................................................................122
Appendix 4: List of Resistance for Temperature Sensor ....................................................123

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Outdoor Unit:
Part Ⅰ: Technical Information
GWH18TC-S3DBA2E/I
GWH24TD-S3DBA2E/I
GWH18TC-S3DBA1E/I
GWH24TD-S3DBA1E/I
GWH18TC-S3DBA3E/I
GWH24TD-S3DBA3E/I
GWH18TC-S3DBA3E/O
GWH24TD-S3DBA3E/O
Remote Controller:
YAC1FB

2Technical Information
Service Manual
Model
1.GWH18TC-S3DBA2E
2.GWH18TC-S3DBA1E
3.GWH18TC-S3DBA3E
1.GWH24TD-S3DBA2E
2.GWH24TD-S3DBA3E
3.GWH24TD-S3DBA1E
Product Code 1.CB411003800 2.CB148009001
3.CB412003201 CB412003202
1.CB411004000 2.CB412003101
3.CB148008901
Power Supply
Rated Voltage V ～220-240 220-240
Rated Frequency Hz 50/60 50/60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity W 5275 7000
Heating Capacity W 5450 7000
Cooling Power Input W 1510 2000
Heating Power Input W 1465 1880
Cooling Power Current A 7.3 8.9
Heating Power Current A 7.1 8.7
Rated Input W 2500 3700
Rated Current A 12.88 16.4
Air Flow Volume(SH/H/MH/M/ML/L/SL) m3/h 950/870/790/710/630/560/480 1200/1130/1060/990/920/850/780
Dehumidifying Volume L/h 1.8 2.5
EER W/W 3.5 3.5
COP W/W 3.72 3.72
SEER 6.5 6.2
SCOP
Average:4.0
Warmer：4.6
Colder:3.3
Average:4.0
Warmer：4.6
Colder:3.3
Application Area m223-34 32-50
Indoor Unit
Model of indoor unit
1.GWH18TC-S3DBA2E/I
2.GWH18TC-S3DBA1E/I
3.GWH18TC-S3DBA3E/I
1.GWH24TD-S3DBA2E/I
2.GWH24TD-S3DBA3E/I
3.GWH24TD-S3DBA1E/I
Indoor Unit Product Code 1.CB411N03800 2.CB148N09001
3.CB412N03201 CB412N03202
1.CB411N04000 2.CB412N03101
3.CB148N08901
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) mm Φ100X765 Φ106X890
Fan Motor Cooling Speed (SH/H/MH/M/ML/
L/SL) r/min 1200/1150/1050/950/850/750/650 1450/1300/1200/1100/1000/900/800
Fan Motor Heating Speed (SH/H/MH/M/ML/
L/SL) r/min 1350/1200/1100/1000/900/800/700 1450/1300/1200/1100/1000/900/800
Output of Fan Motor W 25 70
Fan Motor RLA A 0.1 0.25
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 2-1.5 2-1.5
Coil Length (LXDXW) mm 765X25.4X342.9 903X25.4X381
Swing Motor Model MP28VC/MP28VC/MP24AA MP35CJ/MP24HB/MP24HC
Output of Swing Motor W 2/2/1.5 2.5/1.5/1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/MH/M/ML/L/
SL) dB (A) 46/44/42/40/38/36/34 51/50/46/44/42/40/37
Sound Power Level (SH/H/MH/M/ML/L/SL) dB (A) 60/58/56/54/52/50/48 65/62/58/56/54/52/49
Dimension (WXHXD) mm 1018X319X230 1178X326X264
Dimension of Carton Box (LXWXH) mm 1094X394X325 1253X411X349
Dimension of Package (LXWXH) mm 1097X397X340 1256X414X364
Net Weight kg 14 17
Gross Weight kg 17 21
2. Specications
2.1 Specication Sheet

3
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH18TC-S3DBA3E/O GWH24TD-S3DBA3E/O
Outdoor Unit Product Code CB412W03200 CB412W03100
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO,LTD.
Compressor Model QXAT-B121zF070 QXAT-D20zF030
Compressor Oil 68EP RB68EP
Compressor Type Rotary Rotary
L.R.A. A 40 30
Compressor RLA A 6.6 11.3
Compressor Power Input W 1430 2476
Overload Protector 1NT11L-6233,HPC
115/95,KSD115ºC
1NT11L-6233,HPC
115/95,KSD115ºC
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ºC 16~30 16~30
Ambient temp (cooling) ºC -15~54 -15~54
Ambient temp (heating) ºC -30~24 -30~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7Φ7
Rows-n Gap mm 2-1.4 2-1.4
Coil Length (LXDXW) mm 823.5X38.1X660 945X38.1X748
Fan Motor Speed rpm 780 820
Output of Fan Motor W 60 90
Fan Motor RLA A 0.58 0.65
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit m3/h 3200 4000
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ520 Φ550
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating Pressure
for the Discharge Side MPa 4.3 4.3
Permissible Excessive Operating Pressure
for the Suction Side MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 56/-/- 58/-/-
Sound Power Level (H/M/L) dB (A) 65/-/- 68/-/-
Dimension (WXHXD) mm 963X700X396 1000X790X427
Dimension of Carton Box (LXWXH) mm 1026X455X735 1080X485X840
Dimension of Package (LXWXH) mm 1029X458X750 1083X488X855
Net Weight kg 51 65
Gross Weight kg 55.5 70
Refrigerant R410A R410A
Refrigerant Charge kg 1.65 2.0
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 50
Outer Diameter Liquid Pipe mm Φ6Φ6
Outer Diameter Gas Pipe mm Φ12 Φ16
Max Distance Height m 10 10
Max Distance Length m 25 25
Note:The connection pipe applies metric diameter.

4Technical Information
Service Manual
2.2 Operation Characteristic Curve
01020304050607090010 20 30 40 50 60 70 80 90 100 120110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
• Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
• Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
24K
24K
18K 18K
2.3 Capacity Variation Ratio According to Temperature
Cooling
Cooling
Heating
Heating
-305444342414-154 -15
40
50
120
110
100
90
80
70
60
10
70-8-20
Outdoor Temp.(°C)Outdoor Temp.(°C)
• Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Capacity ratio(%)
Capacity ratio(%)
0
20
40
60
80
100
120
• Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m

5
Technical Information
Service Manual
2.5 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(°C) (DB/
WB) Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
revolution
(rps)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 18K 0.9~1.0 in:8~11
out:11~14
in:75~83
out:37~48 Super High High 73
27/19 35/24 24K 0.9~1.0 in:8~11
out:11~14
in:75~83
out:37~48 Super High High 75
Rated heating
condition(°C) (DB/
WB) Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger Fan speed of
indoor unit
Fan speed of
outdoor unit
Compressor
revolution
(rps)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/15 7/6 18K 2.2~2.4 in:75~83
out:37~45
in:1~3
out:2~6 Super High High 75
20/15 7/6 24K 2.2~2.4 in:75~83
out:37~45
in:1~3
out:2~6 Super High High 80
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 m.
Cooling:
Heating:
2.4 Noise Curve
24K
18K
20
30
40
50
SL LMLMHMHSH
Indoor fan motor rating speed
Noise/dB(A)
46
48
50
52
54
56
58
60
20 30 40 50 60 70 80 90 100
Compressor frequency(Hz)
Noise dB(A)
Heating
Cooling
Indoor side noise Outdoor side noise

6Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Model W H D
18K 1018 319 230
24K 1178 326 264
130 100
50
178 747 253
Φ70 Φ70
144 685 189
55
44
Φ70
13
55
Φ70
119
W
H
D
18K
24K

7
Technical Information
Service Manual
3.2 Outdoor Unit
340
963
700
396
890
560
364
Unit:mm
427
1000
920
610
370
790
395
GWH24TD-S3DBA3E/O
GWH18TC-S3DBA3E/O
Unit:mm

8Technical Information
Service Manual
4. Refrigerant System Diagram
Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Electron
expansion
valve
Strainer
Accumlator
Compressor
Capillary
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:1/2" (12mm) for 18K
Gas pipe:5/8" (16mm) for 24K

9
Technical Information
Service Manual
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
● Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
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10 Technical Information
Service Manual
● Outdoor Unit
GWH18TC-S3DBA3E/O GWH24TD-S3DBA3E/O
The above data is subject to change without notice. Please refer to the nameplate of the unit.
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11
Technical Information
Service Manual
5.2 PCB Printed Diagram
Indoor Unit
● Top view
● Bottom view
1
2
3
4
5 6 7 8 9
10
11
12
13
14
151617181920
1Grounding wire
2Interface of health function
live wire
3Interface of health function
neutral wire
4Neutral wire
5 Interface of DC motor
6Interface of electrostatuc
dedusting
7Auto button
8 Up&down swing interface 1
9eft&right swing interface
10 Up&down swing interface 2
11 Interface of DRED
12 Interface of IC-DOOR
13 Interface of WiFi
14 Display interface
15 Interface of ambient
temperature sensor
16 Interface of tube temperature
sensor
17 Jumper cap
18 Communication interface
19 Live wire interface
20 Fuse

12 Technical Information
Service Manual
Outdoor Unit
● Top view
● Bottom view
1234 56
7
8
9
10
11
1Terminal of compressor
wire
2Terminal of low pressure
protection
3Terminal of compressor
overload protection
4Terminal of outdoor
temperature sensor
5Terminal of outdoor fan
6Terminal of 4-way valve
7Communication wire
with indoor unit
8Power supply live wire
9Earthing wire
10 Power supply neutral
wire
11 PFC induction wire

13
Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Introduction for icons on display screen
Introduction for buttons on remote controller
Note:
● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the
model doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.
● After putting through the power, the air conditioner will give out a sound. Operation indictor " " is ON (red indicator). After that,
you can operate the air conditioner by using remote controller.
● Under on status, pressing the button on the remote controller, the signal icon " " on the display of remote controller will blink once
and the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner.
WIFI
6
3
7
9
11
13
15
12
14
16
10
8
5
4
2
1
1ON/OFF button
2MODE button
3FAN button
4TURBO button
6 button
7 button
9I FEEL button
14 LIGHT button
15 button
16 TEMP button
11 CLOCK button
12 QUIET button(This function is unavailable for this
model)
13 X-FAN button(Note: X-FAN is the same with BLOW.)
10 TIMER ON / TIMER OFF button
8SLEEP button
5▲/ button
▲
WIFI
Send signal
Turbo mode
8℃ heating function
Set temperature
Set time
X-FAN function
TIMER ON /TIMER OFF
Child lock
Up & down swing
Left & right swing
Set fan speed
Light
Temp. display type
:Set temp.
:Outdoor ambient temp.
:Indoor ambient temp.
Sleep mode
Clock
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel
Healthy mode
Scavenging functions
Quiet
WIFI(This is a general remote controller.Some models have this function while some
do not. Please refer to the actual models.)

14 Technical Information
Service Manual
1. ON/OFF button
2. MODE button
3. FAN button
Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor unit’s
display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound.
● When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can’t be adjusted and
will not be displayed as well. Press "FAN" button can adjust fan speed. Press " " / " " button can adjust fan blowing angle.
● After selecting cool mode, air conditioner will operate under cool mode. Cool indicator " "on indoor unit is ON. Press "▲" or "
▲
"
button to adjust set temperature. Press "FAN" button to adjust fan speed. Press " " / " " button to adjust fan blowing angle.
● When selecting dry mode, the air conditioner operates at low speed under dry mode. Dry indicator " " on indoor unit is ON. Under dry
mode, fan speed can’t be adjusted. Press " " / " " button to adjust fan blowing angle.
● When selecting fan mode, the air conditioner will only blow fan, no cooling and no heating. All indicators are OFF. Press "FAN" button to
adjust fan speed. Press " " / " " button to adjust fan blowing angle.
● When selecting heating mode, the air conditioner operates under heat mode. Heat indicator " " on indoor unit is ON. Press "▲" or "
▲
" button to adjust set temperature. Press "FAN" button to adjust fan speed. Press " " / " " button to adjust fan blowing angle. (Cooling
only unit won’t receive heating mode signal. If setting heat mode with remote controller, press ON/OFF button can’t start up the unit.
Note:
● For preventing cold air, after starting up heating mode, indoor unit will delay 1~5 minutes to blow air (actual delay time is depend on indoor
ambient temperature).
● Set temperature range from remote controller: 16~30℃(61-86°F); Fan speed: auto, low speed, medium speed, high speed.
4. TURBO button
Under COOL or HEAT mode, press this button to turn to quick COOL or quick HEAT mode. " " icon is displayed on remote controller.
Press this button again to exit turbo function and " " icon will disappear. If start this function, the unit will run at super-high fan speed to
cool or heat quickly so that the ambient temp. approachs the preset temp. as soon as possible.
5. ▲/
▲
button
6. button
● Press " ▲ " or "
▲
" button once increase or decrease set temperature 1℃(°F). Holding " ▲ " or "
▲
" button, 2s later, set temperature
on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change
accordingly. (Temperature can’t be adjusted under auto mode)
● When setting TIMER ON, TIMER OFF or CLOCK, press " ▲ " or "
▲
" button to adjust time. (Refer to CLOCK, TIMER ON, TIMER OFF
buttons) When setting TIMER ON, TIMER OFF or CLOCK, press " ▲ " or "
▲
" button to adjust time. (Refer to CLOCK, TIMER ON, TIMER
OFF buttons)
Press this button can select left & right swing angle. Fan blow angle can be selected circularly as below:
Note:
● Press this button continuously more than 2s, the main unit will swing back and forth from left to right, and then loosen the button, the unit
will stop swinging and present position of guide louver will be kept immediately.
This button is used for setting Fan Speed in the sequence that goes from AUTO , , , , to then back to Auto.
Press this button to select your required operation mode.
AUTO COOL FAN
DRY HEAT
no display
(stops at current position)
Auto
Medium spee
d
Low-Medium speedLow speed
High speedMedium-High speed

15
Technical Information
Service Manual
● Under swing left and right mode, when the status is switched from off to , if press this button again 2s later, status will switch to off
status directly; if press this button again within 2s, the change of swing status will also depend on the circulation sequence stated above.
7. button
8. SLEEP button
9. I FEEL button
10. TIMER ON / TIMER OFF button
Press this button can select up & down swing angle. Fan blow angle can be selected circularly as below:
Press this button, can select Sleep 1 ( ), Sleep 2 ( ), Sleep 3 ( ) and cancel the Sleep, circulate between these, after electried,
Sleep Cancel is defaulted.
● Sleep 1 is Sleep mode 1, in Cool modes; sleep status after run for one hour, the main unit setting temperature will increase 1°C, two hours,
setting temperature increa sed 2°C, then the unit will run at this setting temperature; In Heat mode: sleep status after run for one hour, the
setting temperature will decrease 1°C, two hours, setting temperature will decrease 2°C, then the unit will run at this setting temperature.
● Sleep 2 is sleep mode 2, that is air conditioner will run according to the presetting agroup of sleep temperature curve.
● Sleep 3-the sleep curve setting under Sleep mode by DIY;
(1)Under Sleep 3 mode, press “Turbo” button for a long time, remote controller entersinto user individuation sleep setting status, at this time,
the time of remote controllerwill display “1hour”, the setting temperature “88” will display the corresponding temp-erature of last setting sleep
curve and blink (The rst entering will display according tothe initial curve setting value of original factory);
(2)Adjust “+” and “-” button, could change the corresponding setting temperature, afteradjusted, press “Turbo” button for conrmation;
(3)At this time, 1hour will be automatically increased at the timer postion on the remotecontrol, (that are "2hours" or "3hours" or "8hours"),
the place of setting temperature "88"will display the corresponding temperature of last setting sleep curve and blink;(4) Repeat the above
step (2)~(3) operation, until 8 hours temperature setting nished,sleep,curve setting nished, at this time, the remote controller will resume
the original timer display; temperature display will resume to original setting temperature.
● Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired:The user could accord to sleep curve setting method to inquire
the presetting sleep curve, enter into user individuation sleep setting status, but do not change the tempera-ture, press “Turbo” button directly
for conrmation. Note: In the above presetting or enquiry procedure, if continuously within 10s, there is no button pressed, the sleep curve
setting within 10s, there is no button pressed, the sleep curve setting status will be automatically quit and resume to display the original
displaying. In the presetting orenquiry procedure, press "ON/OFF" button, "Mode" button, "Timer" button or "Sleep" button, the sleep curve
setting or enquiry status will quit similarly.
Press this button to start I FEEL function and " " will be displayed on the remote controller. After this function is set, the remote controller
will send the detected ambient temperature to the controller and the unit will automatically adjust the indoor temperature according to the
detected temperature. Press this button again to close I FEEL function and " " will disappear.
● Please put the remote controller near user when this function is set. Do not put the remote controller near the object of high temperature
or low temperature in order to avoid detecting inaccurate ambient temperature.
● TIMER ON button
"TIMER ON" button can set the time for timer on. After pressing this button, " " icon disappears and the word "ON" on remote controller
blinks. Press " ▲ " or "
▲
"button to adjust TIMER ON setting. After each pressing " ▲ " or "
▲
" button, TIMER ON setting will increase
or decrease 1min. Hold " ▲ " or "
▲
" button, 2s later, the time will change quickly until reaching your required time. Press "TIMER ON" to
conrm it. The word "ON" will stop blinking. " " icon resumes displaying. Cancel TIMER ON: Under the condition that TIMER ON is started
up, press "TIMER ON" button to cancel it.
● TIMER OFF button
● When selecting " ", air conditioner is blowing fan automatically. Horizontal louver will automatically swing up & down at maximum angle.
● When selecting " 、 、、、 ", air conditioner is blowing fan at xed position. Horizontal louver will stop at the xed position.
● When selecting " 、、 " , air conditioner is blowing fan at xed angle. Horizontal louver will send air at the xed angle.
● Hold " "button above 2s to set your required swing angle. When reaching your required angle, release the button.
Note:
● " 、、 " may not be available. When air conditioner receives this signal, the air conditioner will blow fan automatically.
● Press this button continuously more than 2s, the main unit will swing back and forth from up to down, and then loosen the button, the unit
will stop swinging and present position of guide louver will be kept immediately.
● Under swing up and down mode, when the status is switched from off to , if press this button again 2s later, status will switch to off
status directly; if press this button again within 2s,the change of swing status will also depend on the circulation sequence stated above.
no display
(horizontal louvers stops
at current position)

16 Technical Information
Service Manual
11. CLOCK button
Press this button to set clock time. " " icon on remote controller will blink. Press " ▲ " or "
▲
" button within 5s to set clock time. Each
pressing of " ▲ " or "
▲
" button, clock time will increase or decrease 1 minute. If hold " ▲ " or "
▲
" button, 2s later, time will change quickly.
Release this button when reaching your required time. Press "CLOCK" button to conrm the time. " " icon stops blinking.
Note:
● Clock time adopts 24-hour mode.
● The interval between two operation can’t exceeds 5s. Otherwise, remote controller will quit setting status. Operation for TIMER ON/TIMER
OFF is the same.
"TIMER OFF" button can set the time for timer off. After pressing this button," "icon disappears and the word "OFF" on remote controller
blinks. Press " ▲ " or "
▲
" button to adjust TIMER OFF setting. After each pressing " ▲ " or "
▲
" button, TIMER OFF setting will increase
or decrease 1min. Hold " ▲ " or "
▲
" button, 2s later, the time will change quickly until reaching your required time. Press "TIMER OFF"
word "OFF" will stop blinking. " " icon resumes displaying. Cancel TIMER OFF. Under the condition that TIMER OFF is started up, press
"TIMER OFF" button to cancel it.
Note:
● Under on and off status, you can set TIMER OFF or TIMER ON simultaneously.
● Before setting TIMER ON or TIMER OFF, please adjust the clock time.
● After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off
according to setting time. ON/OFF button has no effect on setting. If you don’t need this function, please use remote controller to cancel it.
12. QUIET button
Press this button, the Quiet status is under the Auto Quiet mode (display " " and "AUTO" signal ) and Quiet mode (display " " singal)
and Quiet OFF (there is no signal of " " displayed), after powered on, the Quiet OFF is defaulted.
Note:
● The Quiet function can be set up in all modes; Under the Quiet mode,the fan speed is not available.
● When quiet function is selected:
Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28°C, indoor fan will
operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set temperature.
Under heating mode: indoor fan operates at notch 3 speed or quiet mode according to the comparison between indoor ambient temperature
and set temperature.
Under dry, fan mode: indoor fan operates at quiet mode.
Under auto mode: the indoor fan operates at the auto quiet mode according to actual cooling, heating or fan mode.
● The Quiet function is only available for some models.
13. X-FAN button
Pressing this button in COOL or DRY mode, the icon " " is displayed and the indoor fan will continue operation for 2 minutes in order to
dry the indoor unit even though you have turned off the unit. After energization, X-FAN OFF is defaulted.X-FAN is not available in AUTO,
FAN or HEAT mode.
This function indicates that moisture on evaporator of indoor unit will be blowed after the unit is stopped to avoid mould.
● Having set X-FAN function on: After turning off the unit by pressing ON/OFF button indoor fan will continue running for about 2 min. at low
speed. In this period, press X-FAN button to stop indoor fan directly.
● Having set X-FAN function off: After turning off the unit by pressing ON/OFF button, the complete unit will be off directly.
14. LIGHT button
15. button
Press this button to turn off display light on indoor unit. " " icon on remote controller disappears. Press this button again to turn on
display light. " " icon is displayed.
Press this button to achieve the on and off of healthy and scavenging functions in operation status. Press this button for the rst time to start
scavenging function; LCD displays " ". Press the button for the second time to start healthy and scavenging functions simultaneously;
LCD displays " " and " " . Press this button for the third time to quit healthy and scavenging functions simultaneously. Press the button
for the fourth t ime to start healthy function; LCD display " " . Press this button again to repeat the operation above.
● This function is applicable to partial of models.
16. TEMP button
By pressing this button, you can see indoor set temperature, indoor ambient temperature or outdoor ambient temperature on indoor unit’s
display. The setting on remote controlleris selected circularly as below:
no display

17
Technical Information
Service Manual
1. Energy-saving function
● When selecting " " or no display with remote controller, temperature indicator on indoor unit displays set temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit displays indoor ambient temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit displays outdoor ambient temperature.
Note:
● Outdoor temperature display is not available for some models. At that time, indoor unit receives " "signal, while it displays indoor set
temperature.
● It’s defaulted to display set temperature when turning on the unit.There is no display in the remote controller.
● Only for the models whose indoor unit has dual-8 display.
● When selecting displaying of indoor or outdoor ambient temperature, indoor temperature indicator displays corresponding temperature and
automatically turn to display set temperature after three or ve seconds.
Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving
function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to
ex-factory setting to reach to the best energy-saving effect. Press "TEMP" and "CLOCK"buttons simultaneously again to exit energy-saving
function.
Note:
● Under energy-saving function, fan speed is defaulted at auto speed and it can’t be adjusted.
● Under energy-saving function, set temperature can’t be adjusted. Press "TURBO" button and the remote controller won’t send signal.
● Sleep function and energy-saving function can’t operate at the same time. If energy-saving function has been set under cooling mode,
press sleep button will cancel energy-saving function. If sleep function has been set under cooling mode, start up the energy-saving function
will cancel sleep function.
Function introduction for combination buttons
Operation guide
2. 8℃heating function
3. Child lock function
4. Temperature display switchover function
Under heating mode, press "TEMP" and "CLOCK" buttons simultaneously to start up or turn off 8
℃
heating function. When this function is
started up, " " and "8
℃
" will be shown on remote controller, and the air conditioner keep the heating status at 8℃. Press "TEMP" and
"CLOCK" buttons simultaneously again to exit 8℃heating function.
Note:
● Under 8℃ heating function, fan speed is defaulted at auto speed and it can’t be adjusted.
● Under 8℃ heating function, set temperature can’t be adjusted. Press " TURBO " button and the remote controller won’t send signal.
● Sleep function and 8℃ heating function can’t operate at the same time. If 8℃heating function has been set under cooling mode, press
sleep button will cancel 8℃ heating function. If sleep function has been set under cooling mode, start up the 8℃ heating function will cancel
sleep function.
● Under ℉ temperature display, the remote controller will display 46 ℉ heating.
Press " ▲ " and "
▲
" simultaneously to turn on or turn off child lock function. When child lock function is on, " " icon is displayed on
remote controller. If you operate the remote controller, the " " icon will blink three times without sending signal to the unit.
Under OFF status, press "
▲
" and "MODE" buttons simultaneously to switch temperature display between ℃and ℉.
1. After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner.
2. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT.
3. Press " ▲ " or "
▲
" button to set your required temperature. (Temperature can’t be adjusted under auto mode).
4. Press "FAN" button to set your required fan speed: auto, low, medium and high speed.
5. Press "SWING" button to select fan blowing angle.
5. WIFI fuction
Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on, the " WiFi" icon will
be displayed on remote controller; Long press "MODE" and "TURBO" buttons simultaneously for 10s, remote controller will send WIFI reset
code and then the WIFI function will be turned on. WiFi function is defaulted ON after energization of the remote controller.
● This function is only available for some models.