Tosot TW12HQ3D6D User manual

Service Manual

Table of Contents
Service Manual
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 Cooling and Heating Data Sheet in Rated Frequency .....................................................5
2.5 Noise Curve......................................................................................................................5
3. Outline Dimension Diagram........................................................................6
3.1 Indoor Unit........................................................................................................................6
3.2 Outdoor Unit .....................................................................................................................6
4. Refrigerant System Diagram......................................................................7
5. Electrical Part...........................................................................................................8
5.1 Wiring Diagram.................................................................................................................8
5.2 PCB Printed Diagram .....................................................................................................10
6. Function and Control......................................................................................12
6.1 Remote Controller Introduction .....................................................................................12
6.2 Ewpe Smart App Operation Manual ...............................................................................17
6.3 Brief Description of Modes and Functions......................................................................18
Part Ⅱ: Installation and Maintenance .................................................23
7. Notes for Installation and Maintenance..........................................23
8. Installation................................................................................................................26
8.1 Installation Dimension Diagram......................................................................................26
8.2 Installation Parts-checking ............................................................................................28
8.3 Selection of Installation Location....................................................................................28
8.4 Electric Connection Requirement ..................................................................................28
8.5 Installation of Indoor Unit................................................................................................28
8.6 Installation of Outdoor Unit.............................................................................................31
8.7 Vacuum Pumping and Leak Detection ...........................................................................32
8.8 Check after Installation and Test Operation ...................................................................32

Table of Contents
Service Manual
9. Maintenance............................................................................................................33
9.1 Error Code List ...............................................................................................................33
9.2 Procedure of Troubleshooting ........................................................................................40
9.3 Troubleshooting for Normal Malfunction.........................................................................53
10. Exploded View and Parts List ..............................................................55
10.1 Indoor Unit....................................................................................................................55
10.2 Outdoor Unit .................................................................................................................57
11. Removal Procedure.......................................................................................59
11.1 Removal Procedure of Indoor Unit ...............................................................................59
11.2 Removal Procedure of Outdoor Unit ............................................................................64
Appendix:........................................................................................................................69
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................69
Appendix 2: Conguration of Connection Pipe.....................................................................69
Appendix 3: Pipe Expanding Method ...................................................................................70
Appendix 4: List of Resistance for Temperature Sensor ......................................................71

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Outdoor Unit:
Remote Controller:
Part Ⅰ: Technical Information
TW12HQ3D6DO
YAG1FB2F(WiFi)
TW12HQ3D6DI
No Model Product Code Indoor Unit Product Code Outdoor Unit Product Code Remote
Controller
1 TW12HQ3D6D CB460001400_L71081 TW12HQ3D6DI CB460N01400_L71081 TW12HQ3D6DO CB437W00900_L71081 YAG1FB2F
(WiFi)

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model TW12HQ3D6D
Product Code CB460001400_L71081
Power Supply
Rated Voltage V~ 208/230
Rated Frequency Hz 50/60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) Btu/h 12000(2900~15354)
Heating Capacity(Min~Max) Btu/h 12200(3071~18766)
Cooling Power Input(Min~Max) W785(75~1500)
Heating Power Input(Min~Max) W940(250~1600)
Cooling Power Current A 3.9
Heating Power Current A 5.3
Rated Input W 1600
Rated Current A 6.5
Air Flow Volume(SH/H/MH/M/ML/L/SL) CFM 850/800/750/600/550/450/400
Dehumidifying Volume Pint/h 2.96
EER (Btu/h)/W 15.3
COP (Btu/h)/W 12.98
SEER 30.5
SCOP 14
Application Area yd219.14-28.70
Indoor Unit
Model of indoor unit TW12HQ3D6DI
Indoor Unit Product Code CB460N01400_L71081
Fan Type Cross-ow
Diameter Length(DXL) inch Ф4 3/16X27 1/2
Fan Motor Cooling Speed (SH/H/MH/M/ML/L/SL/Q) r/min 1400/1300/1200/1100/1000/900/800/550
Fan Motor Heating Speed (SH/H/MH/M/ML/L/SL/Q) r/min 1400/1270/1200/1130/1050/980/900/-
Output of Fan Motor W 60
Fan Motor RLA A 0.09
Fan Motor Capacitor μF /
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter inch Ф1/4
Row-n Gap inch 2-1/16
Coil Length (LXDXW) inch 28 13/16X1X12
Swing Motor Model MP35CJ/MP24HF
Output of Swing Motor W 2.5/1.5
Fuse A 3.15
Sound Pressure Level (SH/H/MH/M/ML/L/SL) dB (A) 49/46/43/40/37/34/30
Sound Power Level (SH/H/MH/M/ML/L/SL) dB (A) /
Dimension (WXHXD) inch 38 13/64X11 13/16X8 13/16
Dimension of Carton Box (LXWXH) inch 40 55/64X15X12
Dimension of Package (LXWXH) inch 41X15X12 39/64
Net Weight Ib 29.8
Gross Weight Ib 36.4

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 TW12HQ3D6DO
Outdoor Unit Product Code CB437W00900_L71081
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXAT-B121zE070
Compressor Oil FV50S
Compressor Type Rotary
Compressor L.R.A. A 35.0
Compressor RLA 6.9
Compressor Power Input W 1070
Overload Protector 1NT11L-6233/HPC115/95/KSD115ºC
Throttling Method Electron expansion valve + Capillary Sub-assy
Operation temp ºF 61~86
Ambient temp (cooling) ºF 0~115
Ambient temp (heating) ºF -22~75
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32
Rows-n Gap inch 2.5-1/18
Coil Length (LXDXW) inch 30.0X2 1/4X21 11/16
Fan Motor Speed rpm 850
Output of Fan Motor W 30
Fan Motor RLA A 0.24
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 2400
Fan Type Axial-ow
Fan Diameter inch Φ17 1/4
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Design Pressure(High) PSIG 550
Design Pressure(Low) PSIG 240
Sound Pressure Level (H/M/L) dB (A) 53/-/-
Sound Power Level (H/M/L) dB (A) /
Dimension (WXHXD) inch 35 3/8X23 1/2X14 7/8
Dimension of Carton Box (LXWXH) inch 37 3/16X16 7/16X24 13/16
Dimension of Package (LXWXH) inch 37 5/16X16 9/16X25 3/8
Net Weight Ib 99.2
Gross Weight Ib 105.8
Refrigerant R410A
Refrigerant Charge oz 49.4
Connection
Pipe
Length ft 24.6
Gas Additional Charge oz/ft 0.2
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height ft 50
Max Distance Length ft 100
Note:The connection pipe applies metric diameter.

4Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
0
1
2
3
4
5
6
7
8
9
10
020406080 100 120
Condition
Indoor:DB81°F WB66°F
Indoor air flow: Super High
Pipe length:24.6 ft
Compressor Speed(rps)
0
1
2
3
4
5
6
7
8
020406080 100 120
Condition
Indoor:DB 68°F
Indoor air flow:Super High
Pipe length:24.6 ft
Compressor Speed(rps)
Cooling Heating
Current(A)
Current(A)
50
60
70
80
90
100
110
120
130
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Capacity ratio(%)
Condition
Indoor:DB81°F WB66°F
Indoor air flow:
Turbo
Pipe length:5m
Outdoor temp. (°C)
Capacity ratio(%)
gnitaeHgnilooC
-20-15 -10-50 510
110
120
130
100
90
80
70
60
50
40
Outdoor temp.(°C)
Condition
Indoor:DB68°F
Indoor air flow:
Turbo
Pipe length:5m
Cooling Heating
Cooling Heating
Cooling
Capacity ratio( %)
Heating
100
105
95
90
85
80
75
70
65
60
55
50
Capacityratio(%)
Condition
Indoor:DB81°F WB66°F
Indoor air flow: Super High
Pipe length:24.6 ft
Outdoor temp(°F) Outdoor temp(°F)
89.695 100.4 107.6 118.4 -22-7.5-45 14 23 32 41 44.650
200
180
160
140
120
100
80
60
40
20
0
Condition
Indoor:DB 68°F
Indoor air flow:Super High
Pipe length:24.6 ft

5
Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(°F) (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
(Hz)
Indoor Outdoor PSIG T1 (°F) T2 (°F)
81/66 95/75 12K 123.2~145 in:46~52
out:52~57
in:122~176
out:99~109 Suprt High High 58
Rated heating
condition(°F) (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
(Hz)
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
68/- 45/43 12K 362.3~435 in:122~176
out:99~109
in:34~37
out:36~41 Super High High 56
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: 24.6ft.
Cooling:
Heating:
2.5 Noise Curve
18K
18K
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
45
50
35
40
30
20
25
Indoor fan motor rotating speed
Super
High
Super
Low
Middle
High
Middle
Low
High Middle Low
Noise dB(A)
18K
45
50
35
40
30
20
25
Indoor side noise Outdoor side noise
Indoor fan motor rotating speed
Super
High
Super
Low
Middle
High
Middle
Low
High Middle Low
40
42
44
46
48
50
52
54
20 030450607080
Compressor frequency(Hz)
Noise dB(A)
Noise dB(A)
Heating
Cooling
12K

6Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:inch
3.2 Outdoor Unit
35 3/8
32 3/16
21 59/64 / 19 16/64
13 15/16
12
23 1/2
14 7/8
Unit:inch
38 13/64 8 13/16
11 13/16
2
47
7 13/64
5 1/2
7 1/2
1 1/
21
1/2
Φ2 3/16 Φ2 3/16

7
Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid : 1/4''(inch)
Gas : 1/2''(inch)
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HEAT
EXCHANGE
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HEAT
EXCHANGE
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COMPRESSOR
GAS SIDE
3-WAY VALVE
LIQUID SIDE
2-WAY VALVE
COOLING
HEATING
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Suction
4-Way valve
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valve
Strainer Capillary
D
Strainer
Intercooler

8Technical 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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9
Technical Information
Service Manual
● Outdoor Unit
These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
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10 Technical Information
Service Manual
5.2 PCB Printed Diagram
Indoor Unit
● Top view
● Bottom view
1234
6
14
15
16
7
871
9
10
11
12
13
5
No.Name
5
6Interface of temperature sensor
connection
1Neutral wire
2Needle stand for indoor fan
3Auto button
4Up&down swing interface
7Te
rminal for display board
8Terminal of jumper cap
10
11
9Communication wire
12
14
Fuse
Live wire interface
15
16
17
Left&right swing interface
Interface of gate control
Terminal of wired controlle
13
Interface of health function
neutral wire
Interface of health function
live wire
Grounding wire
Detecting plate(WIFI )

11
Technical Information
Service Manual
● Top view
Outdoor Unit
● Bottom view
1 Interface of reactor 5 Neutral wire of electric
heater for compressor 9Earthing wire13High pressure protection
terminal HPP
2Interface of electronic
expansion valver 6Neutral wire of electric
heater for chassis 10 Power supply neutral
wire 14 Temp. sensor
3 Interface of fan 7 Neutral wire of 4-way
valve 11 Power supply live wire15Input of overload
4 Live wire of 4-way valve 8 Live wire of electric
heater 12 Communication wire with
indoor and outdoor unit 16 U,V,W three phases of
compressor
1
23 4567 8
9
10
11
12
13141516

12 Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Buttons on Remote Controller
Introduction
for Icons on Display Screen
Introduction for Buttons on Remote Controller
Note:
●
After putting through the power, the air conditioner will give out a sound.Operation indic
●
This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model
don't have, if press the corresponding button on the remote controller that the unit will keep the original running status
.
ator " " is ON (red indicator). A
fter that, you can
operate the air conditioner by using remote controlle
r.
● 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 of
f 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 st
atus, the
display will show the corresponding set function icons.
1. ON/OFF button
Press this button to turn on the unit. Press this button again to turn off the unit.
1
2
3
4
5
6
7
8
9
10
11
12
button
button
WiFi button
QUIET button
SLEEP button
TEMP button
I FEEL button
13
14
15
16
TURBO button
LIGHT button
button
TIMER ON/
TIMER OFF button
CLOCK button
ON/OFF button
FAN button
+/- button
MODE button
(after opening cover
/
1
15
5
2
6
3
12
16
4
11
8
9
13
7
10
14
WiFi
1
2
3
4
ON/OFF button
FAN button
+/- button
MODE button
3
4
2
1
(before opening cover
Send signal
Turbo mode
8ć(46°F) 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
This is a general remote controller. Some
models have this function while some do
not. Please refer to the actual models.

13
Technical Information
Service Manual
2. FAN button
Press this button, Auto, Low, Medium-low, Medium, Medium-high, High speed can be circularly selected. After powered on, Auto fan speed
is default. Under DRY mode, Low fan speed only can be set up.
3. MODE button
Press this button, Auto, Cool, Dry, Fan, Heat mode can be selected circularly. Auto mode is default while power on. Under Auto mode, the
temperature will not be displayed;Under Heat mode, the initial value is 28°C( 82°F);Under other modes, the initial value is 25°C(77°F).
4. +/- button
5. TURBO button
Under Cool or Heat mode,press this button can turn on or turn off the Turbo function.After the Turbo function turned on, the signal of Turbo
will display. The signal will be automatically cancelled if changing the mode or fan speed.
6. button
Press this button to set left & right swing angle cycling as below:
7. button
Press this button to set swing angle,which circularly changes as below:
This remote controller is universal. If it receives threes kinds of following status,the swing angle will remain origial.
If guide louver is stopped when it is swinging up and down,it will remain its present position.
8. CLOCK button
Press this button, the clock can be set up,signal blink and display.Within 5 seconds, the value can be adjusted by pressing + or - button,
if continuously press this button for 2 seconds above,in every 0.5 seconds, the value on ten place of Minute will be increased 1.During
After
powered on, 12:00 is defaulted to display and signal will be displayed. If there is signal be displayed that denotes the current time
value is Clock value, otherwise is Timer value.
9. TIMER ON/TIMER OFF button
● Timer On setting: Signal “ON”will blink and display,signal will conceal,the numerical section will become the timer on setting status.
During 5 seconds blink,by pressing + or - button to adjust the time value of numerical section,every press of that button,the value will be
increased or decreased 1 minute.Hold pressing + or - button,2 seconds later,it quickly change,the way of change is: During the initial 2.5
seconds,ten numbers change in the one place of minute,then the one place is constant,ten numbers change in the ten splace of minute at
2.5 seconds speed and carry. During 5s blink,press the Timer button,the timer setting succeeds.The Timer On has been set up,repress the
timer button,theTimer On will be canceled. Before setting theTimer,please adjust the Clock to the current actual time.
● One press this key to enter into TIMER OFF setup, in which case the TIMER OFF icon will blink. The method of setting is the sameas for
TIMER ON.
Note: It’s Low fan speed
under Dry mode.
(only for cooling and heating unit.
As for cooling only unit, it won’t
have any action when it receives
the signal of heating operation.)
Medium fanLow fan High fan
Medium-low fan Medium-high fan
ATUO
AUTO COOL DRY FAN HEAT
OFF
OFF
● It’s Low fan speed under Dry mode.
This function indicates
v aporator 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 a few minutes. at low speed. In this period, Hold fan speed button for 2s 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.
X-FAN function：Hold fan speed button for 2s in COOL or DRY mode, the icon “ ” is displayed and the indoor fan will
continue operation for a few minutes in order to dry the indoor unit even though you have turned off the unit. After
OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.
●
●
●
Note:
energization, X-FAN
that moisture on e
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 " + " or " - " button once increase or decrease set temperature 1°C(°F). Holding " + " or " - " button, set temperature
on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit
will change accordingly.

14 Technical Information
Service Manual
10. TEMP button
1
1. / button(This function is only available for some models)
scavenging function;LCD displays“ ”.Press the button for the second time to start healthy and scavenging functions simultan
eously;LCD
displays“ ”and “ ” .Press this button for the third time to quit healthy and scavenging functions simultaneously
.Press the button for the
fourth time to start healthy function; LCD display“ ” .Press this button again to repeat the operation above.
NOTE: This function is applicable to partial of models.
12. I FEE
L button
button, every 200ms to send I FEE
L once, after this function started,the remote control will send temperature to the main un it in every 10
minutes.When repress this button, this function will be turned of
f.
13. LIGHT button
Press this button at unit On or Of
f status,Light On and Light Off can be set up.After powered on, Light On is defaulted.
14.
15. 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. Under the Quiet mode (Display
" "signal),
the fan speed is not available.
16. SLEE
P button
●Press this button, can select Sleep 1 ( ), Sleep 2 ( ),Sleep 3 ( ) and cancel the Sleep, circulate be
tween these, after
●Sleep 1 is Sleep mode 1, in Cool, Dehumidify modes: sleep status after run for one hour
, the main unit setting temperature will increase 1°C
（
1 °F or 2 °F ）, 2 hours,setting temperature increased 2°C（3 °F or 4 °F ）, 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
（1 °F or 2 °F ）, 2 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 a group of sleep temperature curve.
In Cool mode:
(1) When setting the initial temperature 16~23°C
（61 °F or 74°F） , after turned on Sleep function, the temperature will be increased 1°C
（
1 °F or 2 °F ） in every hour,after 3°C （5 °F or 6°F ）the temperature will be maintained, after 7hours,the temperature will be decreased 1°C,
after that the unit will keep on running under this temperature;
(2) When setting the initial temperature 24~27°C, after turned on Sleep function, the temperature will be increased 1°C in ever
y hour,after
2°C the temperature will be maintained, after 7hours,the temperature will be decreased 1°
C（1 °F or 2°F ）, after that the unit will keep on running
under this temperature;
(3) When setting the initial temperature 28~29°C
（82 °F or 75°F ）, after turned on Sleep function, the temperature will be increased 1°C
（
1 °F or 2 °F ） in every hour, after 1°C （1 °F or 2 °F ）the temperature will be maintained, after 7hours,the temperature will be decreased 1°C
（
1 °F or 2 °F ）, after that the unit will keep on running under this temperature;
(4) When setting the initial temperature 30°C
（86 °F ）, under this temperature setting, after 7hours, the temperature will be decreased 1°C
（
1 °F or 2 °F ）, after that the unit will keep on running under this temperature;
In Heat mode:
(1) Under the initial presetting temperature 16°C
（61 °F ）, it will run under this setting temperature all along.
(2) Under the initial presetting temperature17~20°C
（62 °F or 68°F） , after Sleep function started up, the temperature will decrease 1°C
（
1 °F or 2 °F ）in every hour, after 1°C（1 °F or 2 °F ） decreased, this temperature will be maintained.
(3) Under the initial presetting temperature 21~27°C
（69 °F or 81°F） , after Sleep function started up, the temperature will decrease 1°C
（
1 °F or 2 °F ） in every hour, after 2°C（3 °F or 4°F ） decreased, this temperature will be maintained.
(4) Under the initial presetting temperature 28~30°C
（82 °F or 86°F） , after Sleep function started up, the temperature will decrease 1°C
3°C
（5 °F or 6°F ） decreased, this temperature will be maintained
Press this button, you can see indoor set temperature,indoor ambient temperature or outdoor ambient temperature on indoor unit’s display.
The setting on remote controller is selected circularly as below:
When selecting“ ”with remote controller or no display, 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 remo
te controller,
temperature indicator on indoor unit displays outdoor ambient temperature. 3s later it will return to the setting temprature or
it depends on
the other received signal within 3s.
A
ttention: When displaying the outdoor ambient, the displaying range is 32-99 °F and 0-60°C,When it goes beyond the range, it keeps the
threshold data (the smallest 0 or 32°F and the largest 99°F or 60°C).
Warm tips: When operating buttons on the cover please make sure the cover is closed completely
.
NOTE: Outdoor temperature display is not available for some models. At that time, indoor unit receives“ ”signal, while it di
splays indoor set
temperature.
no display
● This function is only available for some models.
Press "
WiFi " button to turn on or turn off WiFi function. When WiFi function is turned on, the " WiFi " icon will be displayed on
remote controller; Under status of remote controller off, press "MODE" and "
WiFi " buttons simultaneously for 1s, WiFi module
WiFi button
will restore to factory default setting.

15
Technical Information
Service Manual
the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink;
control 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,
Note: In the above presetting or enquiry procedure, if continuously within10s, there is no button pressed, the sleep curve setting status will
be automatically quit and resume to display the original displaying. In the presetting or enquiry procedure, press "ON/OFF" button, "Mode"
button, "Timer" button or "Sleep" button, the sleep curve setting or enquiry status will quit similarly.
20. About swing up and down
21. About swing left and right(This function is only available for some models)
(1)Press swing left and right 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.
(2)2. 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.
22. About switch between Fahrenheit and Centigrade
Under status of unit off, press MODE and - buttons simultaneously to switch °C and °F.
23. Combination of " TEMP" and "CLOCK" buttons : About Energy-saving Function
Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays “SE”.
Repeat the operation to quit the function.
24. Combination of " TEMP" and "CLOCK" buttons : About 8°C(46°F)Heating Function(This function is only available for some models)
Press “TEMP” and “CLOCK” simultaneously in HEAT mode to start 8°C(46°F)Heating Function.Nixie tube on the remote controller displays"
"and a selected temperature of “8°C” (46°F if Fahrenheit is adopted). Repeat the operation to quit the function.
25. About Quiet function
When quiet function is selected:
(1)Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28°C(82°F), indoor fan
will operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set temperature.
(2)Under heating mode: indoor fan operates at notch 3 speed or quiet mode according to the comparison between indoor ambient
temperature and set temperature.
(3)Under dry, fan mode: indoor fan operates at quiet mode.
(4)Under auto mode: the indoor fan operates at the auto quiet mode according to actual cooling, heating or fan mode.
26. About Sleep function
Under the Fan and Auto mode, the Sleep function cannot be set up, under Dehumidify mode, only Sleep 1 can be selected.Select and
enter into any kind of Sleep mode, the Quiet function will be attached and stared, different Quiet status could be optional and turned off.
(3) At this time, 1hour will be automatically increased at the timer postion on the remote control, (that are "2hours" or "3hours" or "8hours "),
●Sleep 3- the sleep curve setting under Sleep mode by DIY:
(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote control enters into user individuation sleep setting status, at this time,
the time of remote control will display "1hour ", the setting temperature "88" will display the corresponding temperature of last setting sleep
17. About AUTO RUN
When AUTO RUN mode is selected, the unit will be in accordance with the room temp. automatically to select the
suitable running method and to make ambient comfortable.
18. About turbo function
If start this function, the unit will run at super-high fan speed to cool or heat quickly so
the preset temp. as soon as possible.
that the ambient temp. approachs
19. About lock
Press + and - buttons simultaneously to lock or unlock the keyboard. If the remote controller is locked,
the icon will be displayed on it, in which case, press any button,
the mark will flicker for three times.
1. Press swing up and down button continuously more than 2s, the m ain unit will swing
backand forth from up to down ,
and then loosen the button, the unit will stop swing and present position of guide louver will be kept immediately.
2. Under swing up and down mode, when the status is switched from off to , if press
switch to off status directly; If press this button
this button again 2s later, status will
again within 2s, the change of swing status will also depend on the circulation
sequence stated above.
If the keyboard is unlocked, the mark will disappear.

16 Technical Information
Service Manual
WiFi
WiFi
Operation Guide
Replacement of Batteries in Remote Controller
1. General operation
(1)After powered on, press ON/OFF button, the unit will start to run. (Note: When it is powered on, the
guide louver of main unit will close automaticall
y.)
(2)Press MODE button, select desired running mode.
(3)Pressing + or - button, to set the desired temperature (It is unnecessary to set the temp. at
AUTO
mode.)
(4)Pressing F
AN button, set fan speed, can select AUTO FAN,LOW, MEDIUM-LOW, MEDIUM, MEDIUM-
HIGH and HIGH.
2. Optional operation
(1)Press SLEE
P button, to set sleep.
(2)Press
TIMER ON and TIMER OFF button, can set the scheduled timer on or timer off.
(3)Press LIGH
T button, to control the on and off of the displaying part of the unit (This function may be not
available for some units).
(4)Press
TURBO button, can realize the ON and OFF of TURBO function.
cover of battery box along the arrow direction.
2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar are
correct.
3. Reinstall the 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.
remote controller should be close to 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.
5
1
2
3
4
(5)
Pressing and button, to select the swing.
battery
Cover of battery box
remove
reinstall
1
2
3
4
the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink;
control 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,
Note: In the above presetting or enquiry procedure, if continuously within10s, there is no button pressed, the sleep curve setting status will
be automatically quit and resume to display the original displaying. In the presetting or enquiry procedure, press "ON/OFF" button, "Mode"
button, "Timer" button or "Sleep" button, the sleep curve setting or enquiry status will quit similarly.
20. About swing up and down
21. About swing left and right(This function is only available for some models)
(1)Press swing left and right 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.
(2)2. 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.
22. About switch between Fahrenheit and Centigrade
Under status of unit off, press MODE and - buttons simultaneously to switch °C and °F.
23. Combination of " TEMP" and "CLOCK" buttons : About Energy-saving Function
Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays “SE”.
Repeat the operation to quit the function.
24. Combination of " TEMP" and "CLOCK" buttons : About 8°C(46°F)Heating Function(This function is only available for some models)
Press “TEMP” and “CLOCK” simultaneously in HEAT mode to start 8°C(46°F)Heating Function.Nixie tube on the remote controller displays"
"and a selected temperature of “8°C” (46°F if Fahrenheit is adopted). Repeat the operation to quit the function.
25. About Quiet function
When quiet function is selected:
(1)Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28°C(82°F), indoor fan
will operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set temperature.
(2)Under heating mode: indoor fan operates at notch 3 speed or quiet mode according to the comparison between indoor ambient
temperature and set temperature.
(3)Under dry, fan mode: indoor fan operates at quiet mode.
(4)Under auto mode: the indoor fan operates at the auto quiet mode according to actual cooling, heating or fan mode.
26. About Sleep function
Under the Fan and Auto mode, the Sleep function cannot be set up, under Dehumidify mode, only Sleep 1 can be selected.Select and
enter into any kind of Sleep mode, the Quiet function will be attached and stared, different Quiet status could be optional and turned off.
(3) At this time, 1hour will be automatically increased at the timer postion on the remote control, (that are "2hours" or "3hours" or "8hours "),
●Sleep 3- the sleep curve setting under Sleep mode by DIY:
(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote control enters into user individuation sleep setting status, at this time,
the time of remote control will display "1hour ", the setting temperature "88" will display the corresponding temperature of last setting sleep
17. About AUTO RUN
When AUTO RUN mode is selected, the unit will be in accordance with the room temp. automatically to select the
suitable running method and to make ambient comfortable.
18. About turbo function
If start this function, the unit will run at super-high fan speed to cool or heat quickly so
the preset temp. as soon as possible.
that the ambient temp. approachs
19. About lock
Press + and - buttons simultaneously to lock or unlock the keyboard. If the remote controller is locked,
the icon will be displayed on it, in which case, press any button,
the mark will flicker for three times.
1. Press swing up and down button continuously more than 2s, the m ain unit will swing
backand forth from up to down ,
and then loosen the button, the unit will stop swing and present position of guide louver will be kept immediately.
2. Under swing up and down mode, when the status is switched from off to , if press
switch to off status directly; If press this button
this button again 2s later, status will
again within 2s, the change of swing status will also depend on the circulation
sequence stated above.
If the keyboard is unlocked, the mark will disappear.
If “H1” is displayed on the remote controller while it’s not operated by the professional person/after-sales person, it belongs to the
misoperation.
Please operate it as below to cancel it.Under the OFF status of remote controller, hold the Mode button for 5s to cancel “H1” display.
Note:
● If remote controller displays “H1”, it belongs to the normal function reminder. If the unit is defrosting under heating mode, it operates
according to H1 defrosting mode. “H1” won’t be displayed on the panel of indoor unit;
● Once you set H1 mode, if you turn off unit by remote controller, H1 will display 3 times on the remote controller and then disappear;
● Also, when you set H1 mode, when you change to heating mode, H1 will display 3 times on the remote controller and then
disappear.

17
Technical Information
Service Manual
Control Flow Chart
Download and installation
Operating Systems
Requirement for User's smart phone:
Scan the QR code or search "Ewpe Smart" in the application market to download and install it. When "Ewpe Smart" App is installed,
register the account and add the device to achieve long-distance control and LAN control of smart home appliances.
For more information, please refer to "Help" in App.
6.2 Ewpe Smart App Operation Manual
iOS system
Support iOS7.0 and
above version
Android system
Support Android 4.4
and
above version
App Download Linkage
Internet
Cellular/
Other Wi-FI
Home Wi-Fi
Home wireless router
Home Wi-Fi
Cloud
APP
intelligent
home
appliances