Service Manual: Change For Life

Change for Life
Service Manual
Models:
CH-S12FTXE Wi-Fi
CH-S18FTXE Wi-Fi
(Refrigerant:R410A)
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Service Manual
Table of Contents
Part Ⅰ : Technical Information........................................................................1

1. Summary.......................................................................................................................1
2. Specifications...........................................................................................................3
2.1 Specification Sheet............................................................................................................3
2.2 Operation Characteristic Curve.........................................................................................7
2.3 Capacity Variation Ratio According to Temperature..........................................................7
2.4 Cooling and Heating Data Sheet in Rated Frequency......................................................8
2.5 Noise Curve.......................................................................................................................9
3. Outline Dimension Diagram.......................................................................10
3.1 Indoor Unit.......................................................................................................................10
3.2 Outdoor Unit.................................................................................................................... 11
4. Refrigerant System Diagram.....................................................................12
5. Electrical Part.........................................................................................................13
5.1 Wiring Diagram................................................................................................................13
5.2 PCB Printed Diagram......................................................................................................16
6. Function and Control.......................................................................................18
6.1 Remote Controller Introduction ......................................................................................18
6.2 Operation of Smart Control (Smart Phone, Tablet PC) For Gree....................................22
6.3 Operation of Smart Control (Smart Phone, Tablet PC) ..................................................35
6.4 Brief Description of Modes and Functions.......................................................................48
Part Ⅱ : Installation and Maintenance ..................................................57

7. Notes for Installation and Maintenance...........................................57
8. Installation.................................................................................................................60
8.1 Installation Dimension Diagram.......................................................................................60
8.2 Installation Parts-checking .............................................................................................62
8.3 Selection of Installation Location.....................................................................................62
8.4 Electric Connection Requirement ...................................................................................62
8.5 Installation of Indoor Unit.................................................................................................62
8.6 Installation of Outdoor Unit..............................................................................................65
8.7 Vacuum Pumping and Leak Detection............................................................................66
8.8 Check after Installation and Test Operation....................................................................66
Table of Contents
Service Manual
9. Maintenance.............................................................................................................67
9.1 Error Code List................................................................................................................67
9.2 Troubleshooting for Main Malfunction.............................................................................75
9.3 Troubleshooting for Normal Malfunction..........................................................................89
10. Exploded View and Parts List...............................................................91
10.1 Indoor Unit.....................................................................................................................91
10.2 Outdoor Unit................................................................................................................101
11. Removal Procedure......................................................................................103
11.1 Removal Procedure of Indoor Unit..............................................................................103
11.2 Removal Procedure of Outdoor Unit...........................................................................108
Appendix:....................................................................................................................... 112
Appendix 1: Reference Sheet of Celsius and Fahrenheit................................................... 112
Appendix 2: Configuration of Connection Pipe.................................................................... 112
Appendix 3: Pipe Expanding Method.................................................................................. 113
Appendix 4: List of Resistance for Temperature Sensor..................................................... 114
Table of Contents
Service Manual
Part Ⅰ : Technical Information

1. Summary
Technical Information 1
Service Manual
2. Specifications
2.1 Specification Sheet
CH-S12FTXE Wi-Fi
Model
Rated Voltage V~ 220-240

Power
Rated Frequency Hz 50
Supply
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 3200
Heating Capacity(Min~Max) W 3400
Cooling Power Input(Min~Max) W 997
Heating Power Input(Min~Max) W 942
Cooling Current Input A 4.50
Heating Current Input A 4.4
Rated Input W 1500
Rated Cooling Current A 7.2
Rated Heating Current A 7.7
Air Flow Volume(SH/H/M/L/SL) m3/h 560/480/410/290/-
Dehumidifying Volume L/h 1.4
EER W/W 3.21
COP W/W 3.61
SEER 6.1
SCOP 4
Application Area m2 15-22
Fan Type Cross-flow

Fan Diameter Length(DXL) mm Ф98X580
Cooling Speed(SH/H/M/L/SL) r/min 1350/1200/1050/750/-
Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/850/-
Fan Motor Power Output W 20
Fan Motor RLA A 0.215
Indoor Fan Motor Capacitor μF 1
Unit Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5
Evaporator Row-fin Gap mm 2-1.4
Evaporator Coil Length(LXDXW) mm 584X22.8X266.7
Swing Motor Model MP24AA
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 42/37/34/28/-
Sound Power Level(SH/H/M/L/SL) dB (A) 55/47/44/38/-
Dimension(WXHXD) mm 790X275X200
Dimension of Carton Box(LXWXH) mm 850X339X262
Dimension of Package(LXWXH) mm 852X355X273
Net Weight kg 9
Gross Weight kg 11
Service Manual
CH-S18FTXE Wi-Fi
Model
Product Code
Rated Voltage V~ 220-240

Power
Rated Frequency Hz 50
Supply
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 4600
Heating Capacity(Min~Max) W 5000
Cooling Power Input(Min~Max) W 1430
Heating Power Input(Min~Max) W 1380
Cooling Current Input A 6.34
Heating Current Input A 6.12
Rated Input W 1860
Rated Cooling Current A 8.25
Rated Heating Current A 7.45
Air Flow Volume(SH/H/M/L/SL) m3/h 850/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.22
COP W/W 3.62
SEER 6.1
SCOP 4
Application Area m2 21-31
Fan Type Cross-flow

Fan Diameter Length(DXL) mm Ф106X706
Cooling Speed(SH/H/M/L/SL) r/min 1230/1130/1030/800/-
Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/-
Fan Motor Power Output W /
Fan Motor RLA A 0.35
Indoor Fan Motor Capacitor μF 2.5
Unit Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-fin Gap mm 2-1.4
Evaporator Coil Length(LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CJ
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 45/41/37/33/-
Sound Power Level(SH/H/M/L/SL) dB (A) 58/53/50/45/-
Dimension(WXHXD) mm 970X300X224
Dimension of Carton Box(LXWXH) mm 1038X380X305
Dimension of Package(LXWXH) mm 1041X383X320
Net Weight kg 13.5
Gross Weight kg 16.5
Service Manual
2.2 Operation Characteristic Curve
Cooling Heating
11 11
10 Conditions 10 220V
220V
9 Indoor: DB27°C/WB19°C 9
Outdoor: DB35°C/WB24°C
8 Indoor air flow: High 8
7 Pipe length: 5m 7 230V
Current (A)
Current (A)
6 6
5 230V 5 240V
4 4
Conditions
3 3 Indoor: DB20°C/WB15°C
2 240V 2 Outdoor: DB7°C/WB6°C
Indoor air flow: High
1 1 Pipe length: 5m
0 0
0 10 20 30 40 50 60 70 80 90 0 10 20 30 40 50 60 70 80 90 100 110 120
Compressor speed (rps) Compressor speed (rps)
2.3 Capacity Variation Ratio According to Temperature

Heating operation ambient temperature range is -15ºC~24ºC
Cooling Heating
Cooling Heating
130 110
120
100
110
Capacity ratio(%)
90
100
Capacity ratio(%)
80
90
70
80
Condition 60 Conditions
70
Indoor:DB27°C WB19°C Indoor:DB20°C
60 Indoor air flow: High 50 Indoor air flow:Super High
Pipe length:5m Pipe length:5m
50 40
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 –15 –10 –5 0 5 7 10
Outdoor temp. (°C) Outdoor temp.(°C)
Service Manual
Heating operation ambient temperature range is -22ºC~24ºC
Cooling Heating
105 120
100 110
100
95 90
90
Capacity ratio (%)
80
85 70
Conditions
60 Indoor:DB20°C/WB15°C
80 50
Indoor air flow:Super High
Pipe length: 5m
75 40
30
70 -22 -15 -10 -5 0 7 15 20 24
65 Conditions Outdoor temp.(oC)

Indoor:DB27°C/WB19°C
60 Indoor air flow:Super High
55 Pipe length: 5m
50
32 33 34 35 36 37 38 39 40 41 42 43
Outdoor temp.(°C)
2.4 Cooling and Heating Data Sheet in Rated Frequency

Cooling:
Rated cooling Pressure of gas pipe Inlet and outlet pipe
Compressor
condition(oC) connecting indoor and temperature of heat Fan speed of Fan speed of
Model frequency
(DB/WB) outdoor unit exchanger indoor unit outdoor unit
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
12K 0.8 ~ 1.1 11 to 14 38 to 41 72
27/19 35/24 Super High High
18K 0.8 ~ 1.0 12 to 14 80 to 40 52
Heating:
Rated heating Pressure of gas pipe Inlet and outlet pipe

Compressor
condition(oC) connecting indoor and temperature of heat Fan speed of Fan speed of
Model frequency
(DB/WB) outdoor unit exchanger indoor unit outdoor unit
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
12K 2.8 ~ 3.2 38 to 41 2 to 5 77
20/15 7/6 Super High High
18K 2.2 ~ 2.4 70 to 40 1 to 5 65
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.
8 Technical Information
Service Manual
2.5 Noise Curve
Outdoor side noise

70
60
Indoor side noise
60
50
Noise/dB(A)
50
40
Noice/dB(A)
40
30
20 30
10
0 20
low Middle High Super High
0 20 40 60 80 100
Indoor Fan Motor Rotating Speed
Compressor frequency/Hz
12K 18K
Service Manual
3. Outline Dimension Diagram

3.1 Indoor Unit
W D
168.5 462 159.5
12K
Φ55 Φ55
54 54
150 90
104 685 181
18K
Φ55 Φ55
38 38
190 140
Models W H D
Unit:mm
12K 790 275 200
18K 970 300 224
Service Manual
3.2 Outdoor Unit
842 257
596
763 320
540 297
Unit:mm
Service Manual
4. Refrigerant System Diagram
Cooling and heating model

Indoor unit Outdoor unit
Gas pipe
side
Valve
4-Way valve
Discharge
Heat Suction Accumlator

exchanger Compressor
(evaporator)
Heat
exchanger
Liquid pipe (condenser)
side
Valve
Strainer Capillary Strainer
COOLING
HEATING
Connection pipe specification:

Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)
Service Manual
5. Electrical Part
5.1 Wiring Diagram
●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.
● Indoor Unit
CH-S18FTXE Wi-Fi
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Service Manual
CH-S12FTXE Wi-Fi, CH-S18FTXE Wi-Fi
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● Outdoor Unit
CH-S12FTXE Wi-Fi
Service Manual
CH-S18FTXE Wi-Fi
Service Manual
5.2 PCB Printed Diagram

Indoor Unit
● Top view
1 2 3 4 5 6 7
1 Neutral wire terminal

2 Interface of health function neutral wire
3 Motor needle stand
4 Interface of health function live wire
5 Auto button
6 Up&down swing motor
8
7 Interface of up & down swing motor
14 8 WIFI
9 Temperature sensor
13 10 Terminal for display board connection
9
11 Jump
12 Terminal with outdoor unit communication
12
wire
13 Live wire terminal
10
14 Fuse
11
● Bottom view
Service Manual
Outdoor Unit
● Top view
9 10 11
12 NO NAME
1 Interface of electronic expansion valve
2 Overload interface of compressor
3 Terminal of DRED
4 Interface of temperature sensor
13 5 Main board of IC
6 Eeprom
7 Interface of compressor wire WVU
8 8 Reactor wiring terminal
9 DRED Live wire interface
10 Interface of electric heating
14 11 4-way valve terminal
12 DRED Interface of netural wire
13 Terminal of outdoor fan
14 Interface of earthing wire
15
15 Live wire interface
16 16 Neutral wire terminal
17 Communication wire
17
7
6 5 4 3 2 1
● Bottom view
Service Manual
6. Function and Control

6.1 Remote Controller Introduction
1 ON/OFF button
2 MODE button
WIFI
3 FAN button
4 SWING button
1
3 5 TURBO button
2
5 6 ▲/ button
▲
4
6
7 7 SLEEP button
8
9 8 TEMP button
11 10
9 I FEEL button
12 10 LIGHT button
11 CLOCK button
TIMER ON / TIMER OFF

12
button
Introduction for icons on display screen
I feel Set fan speed

Operation mode Send signal
Turbo mode
Auto mode
8℃ heating function
Cool mode
Set temperature
Dry mode
WIFI
Fan mode WIFI
Heat mode Set time

TIMER ON / TIMER OFF
Clock
Sleep mode Child lock
Light Up & down swing
Temp. display type
:Set temp. :Indoor ambient temp.
:Outdoor ambient temp.
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 doesnt 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.
● Under off status, set temperature and clock icon will be displayed on the display
of remote controller (If timer on, timer off and light functions are set, the corresponding icons will be displayed on the display of
remote controller at the same time); Under on status, the display will show the corresponding set function icons.
Service Manual
Press this button to turn on the unit. Press this button again to turn off the unit.
Press this button to increase set temperature. Holding it down above 2 seconds rapidly increases set temperature.
In AUTO mode, set temperature is not adjustable.
AUTO COOL DRY FAN HEAT*
OFF
Caution:
Service Manual
12.TURBO button
Combination “MODE” and “TURBO” buttons：About WIFI fuction

Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on,
the " " 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.
Service Manual
battery
reinstall
remove
Cover of battery box

Note:
● During operation, point the remote control signal sender at the receiving window on indoor unit.
● The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them.
indoor unit during operation.

● Replace new batteries of the same model when replacement is required.
● When you don’t use remote controller for a long time, please take out the batteries.
● If the display on remote controller is fuzzy or there’s no display, please replace batteries.
Service Manual
6.2 Operation of Smart Control (Smart Phone, Tablet PC) For Gree
Operation Instructions
Download and install APP
Scan the following QR code with your smart phone and download Wifi Smart.
Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon
User of IOS system can search for the Gree Smart in Apple store to download the Apple version APP.
Configuration
NOTE: Select either the original configuration or AP configuration according to the APP functions.
1.Original configuration
Before operation, please finish the following configuration in order to realize Wifi control and the connection between air conditioner and
intelligent device.
(1).Short-distance control setting for air conditioner using Wifi hotspot
Step 1: Air conditioner Wifi is set in AP mode in factory. You can search the air conditioner Wifi hotspot through your smart phone. The
name of Wifi hotspot is the last 8 numbers of the air conditioner mac address. Password is 12345678.
Step 2: Open APP and the screen will show the air conditioner that you just connected. Tap the name of this air conditioner on
your phone to enter and realize short-distance control, as shown below. Please refer to "Functions introduction" for specific control
methods.
NOTE:One AC can be controlled by 4 smart phones in maximum at the same time.

(2).Short-distance and long-distance control setting for air conditioner connecting with router
Step 1: Under short-distance control, return to the homepage "Home Control". Tap at the top right corner of the homepage "Device".
Service Manual
Select "Add device" and enter the page of "Add device". Tap "Manual configuration" and enter the page "Manual configuration".
Step 2: Select the correct network name and enter the password. Select the server (The server setting here must keep the same as the
server setting in "Settings" mentioned below. Otherwise, remote control will fail.), then tap the button "Add device" for configuration. At
this time, "Configuring" is displayed on the APP. The buzzer in the indoor unit will give out a sound when configuration succeeds.
2.AP configuration
4 steps of configuration
Step 1: Enter homepage "Device", and then tap at the top right corner.
Select "Add device" and enter the page "Add device". Tap "Manual Configuration".
Step 2: Tap "Next" in the First Step.
Step 3: Select the wireless network of air conditioner. APP will show the password 12345678 (default password of the network of air
conditioner). Then tap "Next"; select the name of home Wifi router, then enter the correct password and select a server.
Service Manual
Step 4: If configuration is successful, a window will pop up and read "Configuration succeeded". Then configuration is completed.
NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disAPPear. You should reconnect your
phone to the home Wifi router to realize long-distance control.
The above configuration only needs one phone. Other types of phones shall install this APP, connect with the air conditioner hot spot or
wireless router of Wifi air conditioner. When connection is done, open the APP to use short-distance operation to control the air conditioner
and then you can use the long-distance control.
Functions introduction
1.User registration
Purpose: To realize long-distance control
Operation instruction: For the first time login, you have to register a new username. If you already have a username, skip the registration
step and enter email address and password on the "Login Page" to log in. If password is forgotton, you can reset the password.
Operation steps:
(1) Select the sever address
(2) Account login: Slide the page "Device", and enter the page "Menu" on the left. Tap "Login" to enter the page "Register username". New
user must first register a username. Tap "Register”.
(3) Enter your email address. Wait until you receive the verification code. Enter the code and then tap "OK" to log in.
Service Manual
(4) If password is forgotten, you can reset the password with your email address.
Tap "Forgot password" and enter the page "Forgot password". Tap "Get verification code" to get an email verification code. Enter a new
password and tap "OK" to log in.
2.Personal settings
Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
(1) Set device name
After quick configuration, a list of controllable smart devices will be generated. Default name for air conditioner is the last 8 numbers of the
air condtioner mac address.
Step 1: Tap and hold "a0b417ac" to enter the page "Edit device". Tap "Image" to select the source of image. Select from "Default images"
or "Take photo" or "Choose from photos" and save an image.
Step 2: Tap "Name" to change device name. Save it and the new device name will be shown. Enable button ''Lock device'' to lock the
device so that other smart phones can’t search the device. Tap "Temp unit" to change the temperature unit.
Step 3: Tap "Firmware update" to upgrade the firmware of the device. Tap"1.8" and then the device will be updated automatically.
Service Manual
(2) Set preset name

Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit".
Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the
repeating days. Save the setting of preset name.
(3) Set device image

Please refer to step 1 in 2(1)
3.Control functions
(1) Common control functions: General control on the operation of smart devices (On/Off, temperature, fan speed, mode, etc.) and the
setting of advanced functions (air exchange, dry, health, light, sleep, energy saving upper limit).
Step 1: General control
Enter the homepage "Home control" first. Take "babyroom"as an example.
Tap "babyroom" and enter the page of air conditioner control. Tap to turn on the control switch.
Service Manual
Tap or to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed
adjustment.
Tap and go around the circle to adjust fan speed.
Step 2: Advanced settings

Tap to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving".
(2) Advanced control functions: Set scene; Preset; Link; Infrared control (only APPlicable to smart phones with infrared emitter)
Set scene: Preset the operation of several smart devices by one tap.
On the page "Home control", tap the image of "Home control" to enter the page "Edit scene".
Service Manual
Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices.
Tap to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or
"OFF".
Continue to select the next execution device as instructed above. Tap to set the interval.
Tap "Save". Tap the scene picture displayed on homepage "Device" to send the command. Then the scene "Back home" will be in execution.
You may view the execution condition of the scene.
Service Manual
(3) Preset includes single-device preset and multi-device preset

Single-device preset: This can preset a certain device to be On/Off at a specific time.
On the homepage "Device", take air conditioner "babyroom" as an example. Tap at the bottom of the page "babyroom". Then you will
enter the page "Preset edit".
Slide up and down to set the time. If you need to synchronize the time, tap " synchronize". If such "Hint" interface doesn't show up, please
skip this operation step.
Tap "Name" to customize the preset name.

Preset device can’t be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the
preset.
Multi-device preset: This can preset multiple devices to execute a command at a specific time.
Please refer to the instructions as how to set preset time, name, timer type and repeating days for a single device.
Tap "Preset device" to select one or more devices. Then return to the page "Device".
Service Manual
(4) Link(This function is APPlicable to some models)

Select a master device. When the environment satisfies the parameters as set in the master device, slave devices will execute
commands to realize devices linkage.
Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status).
Tap at the top right corner of the homepage "Device". Select "Link" and enter the page "Add linkage". Tap "Device/Param" to
enter the page "Select device". Take "baby room" as an example. Tap "babyroom".
Enter the page "Select environment parameters".
Tap "Temperature" to enter the page "Select temperature parameter". Slide up or down to adjust temperature. Tap "Upper limit" or
"Lower limit".
Tap "Mode" and "On/Off" to select the status of master device. Then tap "Save".
Step 2: Set time parameter for linkage. Tap "Time parameter" to enter the page "Set time". Slide rightwards to turn on the
setting time.
Tap "Execution time"; then tap "Start" and "Stop" to set start time and stop time respectively. Tap "OK" at the top right corner to save the
setting.
Service Manual
Tap the days below "Repeat" to select the repeating days. Then tap "Save".
Step 3: Select "Execute command"

Tap "Execute command" and enter the page "Select device".
Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage.
Tap "Save" and then repeat the above steps to set linkage of several scenes.
Service Manual
(5) Infrared control (only APPlicable to smart phones with infrared emitter).
Function: Smart phone can be used as a remote controller.
Tap at the top right corner of the homepage "Device". Select "Infrared" and enter the page "Remote controller". Tap and
slide up to enter the page of advanced functions.
Tap to turn on the device. Tap to select mode. Tap to adjust fan speed and swing angle. Tap "Health", "Energy
saving", "Sleep" etc. to set advanced functions.
Tap "Sleep" to enter the page "Sleep". You can select "Traditional sleep", "Expert sleep" or "DIY sleep". Tap "DIY sleep" and then tap
the left and right arrows to set sleep time. Tap up and down arrows to adjust temperature at a specific sleep time.
4.Menu functions
Menu functions (Share, Set, History, Feedback)
(1) Share: To share quick configuration information and unit’s information, including local export and local import.
For local import, you just need to tap "Local import" and wait for the data download.
Local export
Step 1: Export local data to another smart phone.
Enter "Menu" on the left side and tap "Share" to enter the page "Share". Then tap "Local export".
Service Manual
Step 2: Another smart phone to be imported.

Tap the model name and wait for the download.
(2) Backup: To keep backup of the quick configuration information and unit’s information, including backup to cloud and backup list on
the cloud.
Backup to cloud
Enter the "Menu" on the left and tap "Backup".
Tap "Backup to cloud" and then tap "Yes". Then wait for the data download.
Select "Backup list on the cloud". Then backup records will APPear. Tap "Record" to download data and recover data to local unit.
Service Manual
(3) Settings
User can set vibration, message alerts, server, updates, etc. The server setting here must be the same as the server setting in
"Configuration" mentioned before.
Otherwise, remote control will be invalid.
(4) Feedback
User can feedback suggestions to back-stage management for maintenance and development.
Tap "Feedback". Enter your suggestions and then submit it.
Service Manual
6.3 Operation of Smart Control (Smart Phone, Tablet PC)

Operation Instructions
Download and install APP
Scan the following QR code with your smart phone and download Wifi Smart.
Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon
User of IOS system can search for the Wifi Smart in Apple store to download the Apple version APP. Android user can
search "WiFi Smart" on Google Play to download it.
Configuration
NOTE: Select either the original configuration or AP configuration according to the APP functions.
1.Original configuration
Before operation, please finish the following configuration in order to realize Wifi control and the connection between air conditioner and
intelligent device.
(1).Short-distance control setting for air conditioner using wifi hotspot
Step 1: Air conditioner wifi is set in APP mode in factory.
You can search the air conditioner wifi hotspot through your smart phone.The name of wifi hotspot is the last 8 numbers of the air
conditioner mac address. Password is 12345678.
gree-a
gr-cn
gr-cn gr-dh
Step 2: Open APP and the screen will show the air conditioner that you just connected. Tap the name of this air conditioner on your
phone to enter and realize short-distance control, as shown below. Please refer to "Functions introduction" for specific control methods.
Service Manual
2.Configuration method for Android phones

4 steps of configuration
Step 1: Enter homepage "Device", and then tap at the top right corner.
Select "Add device" and enter the page "Add device".
Tap "Manual configuration" and enter the page "Manual configuration".
Step 2: Tap "Next" in the First Step.
Step 3: Select the wireless network of air conditioner. APP will show the password 12345678 (default password of the network of air
conditioner). Then tap "Next"; select the name of home WiFi router, then enter the correct password and select a server.
Step 4: If configuration is successful, a window will pop up and read “WIFI module starts to connect the configured wireless router”.Then
configuration is completed.
Service Manual
NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disappear. You should reconnect your
phone to the home WiFi router to realize long-distance control.The above configuration only needs onephone. Other types of phones
shall install this APP, connect with the air conditioner hot spot or wireless router of WiFi air conditioner. When connection is done, open
the APP to use short-distance operation to control the air conditioner and then you can use the long-distance control.
3.Configuration method for Apple phones
Step 1: Turn on Wi-Fi “Settings” on the phone.
Step 2: In general, the hot spot signal of air conditioner is the last 8 bits of MAC address. Eg: Select “a0b41737” and enter
the defaulted password “12345678” to connect it.
Step 3: Turn on APP, press “+” button, press “Add device” to enter into the page of “Add device” and then select “Manual configuration”.
Enter wireless router’s SSID and PSW on the page of “Manual configuration”. The display on the server will be the same as the selection
when registering the account ( server selection in “Setting”).
Eg: WiFi name: Tenda_XXX;
WiFi password:123456789
Server: Europe
Check whether the filled information is correct. If the information is wrong, configuration will fail. Press “Configuration” to start
configuration.
Notice:
Finally, press “Configuration”, and APP will send the filled information to Wifi Smart. At this time, the buzzer will give out a sound, which
indicates it has started to connect the wireless router.
Service Manual
If the name of router or the password is wrong, Wifi Smart can’t connect to the wireless router. 2 mins later, please conduct the
configuration operation again. Reset Wi-Fi adaptor by pointing you remote at the indoor unit and holding the mode and Turbo buttons on
your remote control for 10 seconds and until you hear the beep.
Wrong server selection will cause long-distance control invalid. Therefore, please make sure thatthe server selection when
registering the account is the same as this one.
If the password is blank, no password is defaulted for the wireless router, which is the OPEN mode.
Configuration should be conducted at one time. As for other phones, they can automatically search for the device after connecting to the
wireless router (such as Tenda_XXX) and turning on the APP.
Functions introduction
1.User registration
Purpose: To realize long-distance control.
Operation instruction: For the first time login, you have to register a new username. If you already have a username, skip the registration
step and enter email address and password on the "Login Page" to log in. If password is forgotton, you can reset the password.
Operation steps:
(1) Select the sever address.
(2) Account login: Slide the page "Device", and enter the menu page on the left.Tap "Login" to enter the page "Register
username". New user must first register a username. Tap "Register”.
(3) If password is forgotten, you can reset the password with your email address.
Tap "Forgot password" and enter the page "Forgot password". Enter your registered email account the first. Tap "Get verification code" to
get an email verification code. Enter a new password and tap "OK" to log in.
Service Manual
2.Personal settings
Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
(1) Set device name
After quick configuration, a list of controllable smart devices will be generated. Default name for air conditioner is the last 8 numbers of
the air condtioner mac address.
Step 1: Tap and hold the Wifi model name, such as “a0b417ac”, to enter the page "Edit device". Tap "Image" to select the source of
image. Select from "Default images " or " Take photo" or "Choose from photos" and save an image.
Step 2: Tap "Name" to change device name. Save it and the new device name will be shown. Enable button ''Lock device''to lock the
device so that other smart phones can’t search the device. Tap "Temperature unit" to change the temperature unit.
Notice: If this device is not locked, other phones within the local area network can be found through wifi smart APP and operate the
device.
Step 3: Tap "Firmware update" to upgrade the firmware of the device. Tap"1.7" and then the device will be updated automatically.
Service Manual
(2) Set preset name

Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit".
Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the
repeating days. Save the setting of preset name.
(3) Set device image

Please refer to step 1 in 2(1)
3.Control functions
(1) Common control functions: General control on the operation of smart devices (On/Off, temperature, fan speed, mode, etc.) and the
setting of advanced functions (air exchange, dry, health, light, sleep, energy saving upper limit).
Step 1: General control
Enter the homepage "Device" first. Take "babyroom" as an example.
Service Manual
Tap "babyroom" and enter the page of air conditioner control. Tap to turn on the control switch.
Tap or to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed
adjustment.
Tap and go around the circle to adjust fan speed.
Step 2: Advanced settings

Tap to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving".
(2) Advanced control functions; Set scene; Preset; Link: Infrared control(only applicable to smart phones with infrared emitter)
Set scene: Preset the operation of several smart devices by one tap. On the page "Device", tap the image of "Device" to enter the page
"Edit scene".
Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices.
Tap to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or
"OFF".
Service Manual
Continue to select the next execution device as instructed above. Tap to set the interval.
Tap "Save". Tap the scene picture displayed on homepage "Device" to send the command. Then the scene "Back home"
will be in execution. You may view the execution condition of the scene.
(3) Preset includes single-device preset and multi-device preset

Single-device preset: This can preset a certain device to be On/Off at a specific time.
On the homepage "Device", take air conditioner "babyroom" as an example. Tap at the bottom of the page "babyroom".
Then you will enter the page "Preset edit".
Slide up and down to set the time. If you need to synchronize the time, tap " synchronize". If such "Hint" interface doesn't
show up, please skip this operation step.
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Tap "Name" to customize the preset name.

Preset device can’t be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the
preset.
Multi-device preset: This can preset multiple devices to execute a command at a specific time.
Please refer to the instructions as how to set preset time, name, timer type and repeating days for a single device.
Tap "Preset device" to select one or more devices. Then return to the page "Device".
(4) Link(This function is applicable to some models)

Select a master device. When the environment satisfies the parameters as set in the master device, slave devices will execute
commands to realize devices linkage.
Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status).
Tap at the top right corner of the homepage "Device". Select "Link" and enter the page "Add linkage". Tap "Device/Param" to enter
the page "Select device". Take "baby room" as an example. Tap "babyroom".
Enter the page "Select environment parameters".
Service Manual
Tap "Temperature" to enter the page "Select temperature parameter". Slide up or down to adjust temperature. Tap "Upper limit" or "Lower
limit".
Tap "Mode" and "On/Off" to select the status of master device. Then tap "Save".
Step 2: Set time parameter for linkage. Tap "Time parameter" to enter the page "Set time". Slide rightwards to turn on the setting
time.
Tap "Execution time"; then tap "Start" and "Stop" to set start time and stop time respectively. Tap "OK" at the top right corner to save the
setting.
Tap the days below "Repeat" to select the repeating days. Then tap "Save".
Step 3: Select "Execute command" Tap "Execute command" and enter the page "Select device".
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Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage.
Tap "Save" and then repeat the above steps to set linkage of several scenes.
4.Menu functions
Menu functions (Share, Set, History, Feedback)
(1) Share: To share quick configuration information and unit’s information, including local export and local import.
For local import, you just need to tap "Local import" and wait for the data download.
Local export
Step 1: Export local data to another smart phone.
Enter menu page on the left side and tap "Share" to enter the page "Share". Then tap "Local export".
Service Manual
Step 2: Another smart phone to be imported.

Tap the model name and wait for the download.
Notice:
This function requires that the two phones are of the same operating system. They are either Android phones or Apple phones,and are
connecting to the same wireless router.
(2) Backup: To keep backup of the quick configuration information and unit’s information, including backup to cloud and backup list on
the cloud.
Backup to cloud
Enter the menu page on the left and tap "Backup".
Tap "Backup to cloud" and then tap "Yes". Then wait for the data download.
Select "Backup list on the cloud". Then backup records will appear. Tap "Record" to download data and recover data to local unit.
Service Manual
(3) Settings
User can set vibration, message alerts, server, updates, etc. The server setting here must be the same as the server setting in
"Configuration" mentioned before.
Otherwise, remote control will be invalid.
(4) Help
Please refer to “Help” of APP for the instruction of the latest functions.

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Part Ⅰ : Technical Information........................................................................1

Part Ⅱ : Installation and Maintenance ..................................................57

Part Ⅰ : Technical Information

Rated Voltage V~ 220-240

Fan Type Cross-flow

Rated Voltage V~ 220-240

Fan Type Cross-flow

2.2 Operation Characteristic Curve

2.3 Capacity Variation Ratio According to Temperature

Heating operation ambient temperature range is -22ºC~24ºC

65 Conditions Outdoor temp.(oC)

2.4 Cooling and Heating Data Sheet in Rated Frequency

Rated heating Pressure of gas pipe Inlet and outlet pipe

2.5 Noise Curve

Outdoor side noise

3. Outline Dimension Diagram

168.5 462 159.5

104 685 181

3.2 Outdoor Unit

4. Refrigerant System Diagram

Cooling and heating model

Heat Suction Accumlator

Connection pipe specification:

Symbol Symbol Color Symbol Symbol Color Symbol Name

CH-S12FTXE Wi-Fi, CH-S18FTXE Wi-Fi

5.2 PCB Printed Diagram

1 Neutral wire terminal

6. Function and Control

TIMER ON / TIMER OFF

Introduction for icons on display screen

I feel Set fan speed

Heat mode Set time

Introduction for buttons on remote controller

AUTO COOL DRY FAN HEAT*

Combination “MODE” and “TURBO” buttons：About WIFI fuction

Cover of battery box

indoor unit during operation.

NOTE:One AC can be controlled by 4 smart phones in maximum at the same time.

Step 2: Tap "Next" in the First Step.

(2) Set preset name

(3) Set device image

Tap and go around the circle to adjust fan speed.

Step 2: Advanced settings

(3) Preset includes single-device preset and multi-device preset

Tap "Name" to customize the preset name.

(4) Link(This function is APPlicable to some models)

Enter the page "Select environment parameters".

Step 3: Select "Execute command"

Step 2: Another smart phone to be imported.

6.3 Operation of Smart Control (Smart Phone, Tablet PC)

2.Configuration method for Android phones

Step 2: Tap "Next" in the First Step.

(2) Set preset name

(3) Set device image

Tap and go around the circle to adjust fan speed.

Step 2: Advanced settings