QS09-VJ115
QS12-VJ115
QS09-VP115
QS12-VP115
(Refrigerant R410A)
Model:
Service Manual
Service Manual
Table of Contents
Part
Ⅰ
: Technical Information
................................................. 1
1. Summary
........................................................................................................................ 1
2. Specications
............................................................................................................ 2
2.1 Specication 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 Brief Description of Modes and Functions ........................................................................ 17
Part
Ⅱ
: Installation and Maintenance
..................... 22
7. Notes for Installation and Maintenance
............................................ 22
8. Installation
.................................................................................................................. 24
8.1 Installation Dimension Diagram ........................................................................................ 24
8.2 Installation Parts-checking .............................................................................................. 26
8.3 Selection of Installation Location ...................................................................................... 26
8.4 Requirements Forelectric Connection .............................................................................. 26
Service Manual
8.5 Installation of Indoor Unit .................................................................................................. 26
8.6 Installation of Outdoor Unit ............................................................................................... 29
8.7 Vacuum Pumping and Leak Detection ............................................................................. 30
8.8 Check after Installation and Test operation ...................................................................... 30
9. Maintenance
.............................................................................................................. 31
9.1 Troubleshooting for Normal Malfunction ........................................................................... 31
9.2 Error Code List ................................................................................................................. 35
9.3 Troubleshooting for Main Malfunction .............................................................................. 42
10. Exploded View and Parts List
................................................................ 50
10.1 Indoor Unit ...................................................................................................................... 50
10.2 Outdoor Unit ................................................................................................................... 52
11. Removal Procedure
......................................................................................... 56
11.1 Removal Procedure of Indoor Unit ................................................................................. 56
11.2 Removal Procedure of Outdoor Unit .............................................................................. 59
Appendix:
.......................................................................................................................... 67
Appendix 1: Reference Sheet of Celsius and Fahrenheit ...................................................... 67
Appendix 2: Conguration of Connection Pipe ....................................................................... 67
Appendix 3: Pipe Expanding Method ..................................................................................... 68
Appendix 4: List of Resistance for Ambient Temperature Sensor .......................................... 69
1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Outdoor Unit:
Part
Ⅰ
: Technical Information
QS09-VJ115
QS12-VJ115
QS09-VP115
QS12-VP115
Remote Controller:
YB1FAF
ON/ OFF
MOD E
FAN
CLO CK TIM ER ON
X-F AN TEMP
TIM ER OF F
TURB O SLEE P LIG HT
2
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
QS09-VJ115
QS09-VP115
QS12-VJ115
QS12-VP115
Product Code CB16300021_K90639 CB16300041_K90639
Power
Supply
Rated Voltage V~ 115 115
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) Btu/h 9000(4436~11997) 12000(4500~13999)
Heating Capacity(Min~Max) Btu/h 9500(3412~12488) 13000(3753~14498)
Cooling Power Input(Min~Max) W 660(120~1300) 1000(120~1450)
Heating Power Input(Min~Max) W 700(220~1350) 1200(220~1500)
Cooling Current Input A 16 17.5
Heating Current Input A 16.5 18
Rated Input W 1350 1500
Rated Current A 16.5 18
Air Flow Volume (SH/H/M/L) CFM 300/277/253/218 330/294/253/218
Dehumidifying Volume Pint/h 1.69 2.96
EER (Btu/h)/W 13.64 12
COP (Btu/h)/W 13.57 10.83
SEER 22 20
HSPF 9.8 9.6
Application Area m
2
12-18 16-24
Indoor Unit
Indoor Unit Model QS09-VJ115 QS12-VJ115
Indoor Unit Product Code CB163N0021_K90639 CB163N0041_K90639
Indoor Unit Fan Type Cross-ow Cross-ow
Indoor Unit Fan Diameter Length(DXL) inch Φ3 5/8X25 2/5 Φ3 5/8X25 2/5
Cooling Speed (SH/H/M/L) r/min 1260/1070/900/730 1290/1070/900/690
Heating Speed (SH/H/M/L) r/min 1280/1050/980/920 1280/1050/980/920
Indoor Unit Fan Motor Power Output W 20 20
Indoor Unit Fan Motor RLA A 0.38 0.38
Indoor Unit Fan Motor Capacitor μF 4 4
Heater Power Input W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter inch 0.28 0.28
Evaporator Row-n Gap inch 2-1/16 2-1/16
Evaporator Coil Length (LXDXW) inch 25 2/5X1X10 1/2 25 2/5X1X10 1/2
Swing Motor Model MP24AA MP24AA
Swing Motor Power Output W 2.4 2.4
Fuse Current A 3.15 3.15
Sound Pressure Level (SH/H/M/L) dB (A) 38/34/30/26 40/36/32/26
Sound Power Level (SH/H/M/L) dB (A) 48/44/40/36 50/46/42/36
Dimension (WXHXD) inch 33 1/4X10 5/6X7 33 1/4X10 5/6X7
Dimension of Carton Box (LXWXH) inch 36X10X14 36X10X14
Dimension of Package (LXWXH) inch 36 1/7X 10 1/6X14 4/7 36 1/7X 10 1/6X14 4/7
Indoor Unit Net Weight lb 22.1 22.1
Indoor Unit Gross Weight lb 28.7 28.7
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Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Outdoor Unit Model QS09-VP115 QS12-VP115
Outdoor Unit Product Code CB190W0041_K90639 CB190W0061_K90639
Compressor Manufacturer
ZHUHAI LANDA
COMPRESSOR CO., LTD
ZHUHAI LANDA
COMPRESSOR CO., LTD
Compressor Model QXA-A091zE190 QXA-A091zE190
Compressor Oil FVC68D/RB68EP FVC68D/RB68EP
Compressor Type Rotary Rotary
Compressor LRA. A / /
Compressor RLA A 16.03 17.53
Compressor Power Input W 980 980
Compressor Overload Protector 1NT11L-6233 1NT11L-6233
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range °F 61~86 61~86
Cooling Operation Ambient Temperature
Range
°F 55~115 55~115
Heating Operation Ambient Temperature
Range
°F 5~75 5~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ3/8 Φ3/8
Condenser Rows-n Gap inch 2-1/16 2-1/16
Condenser Coil Length (LXDXW) inch 29 2/5X1 3/4X20 29 2/5X1 3/4X22
Outdoor Unit Fan Motor Speed rpm 900 900
Outdoor Unit Fan Motor Power Output W 30 30
Outdoor Unit Fan Motor RLA A 0.17 0.17
Outdoor Unit Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume CFM 1059 1177
Outdoor Unit Fan Type Axial-ow Axial-ow
Outdoor Unit Fan Diameter inch 15 3/4 15 3/4
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
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) 53/50/46 55/53/49
Sound Power Level (H/M/L) dB (A) 63/60/56 65/63/59
Dimension (WXHXD) inch 33 2/5X21 1/4X12 3/5 33 2/5X23 1/3X12 3/5
Dimension of Carton Box (LXWXH) inch 34 4/7X14 1/6X22 5/6 34 4/7X14 1/6X24 4/5
Dimension of Package (LXWXH) inch 34 2/3X14 2/7X23 3/7 34 2/3X14 2/7X25 2/5
Outdoor Unit Net Weight lb 72.8 75
Outdoor Unit Gross Weight lb 81.6 83.8
Refrigerant R410A R410A
Refrigerant Charge oz 42.3 45.8
Connection
Pipe
Connection Pipe Length ft 25 25
Connection Pipe Gas Additional Charge oz/ft. 0.22 0.22
Outer Diameter Liquid Pipe inch 1/4" 1/4"
Outer Diameter Gas Pipe inch 3/8" 3/8"
Max Distance Height ft 32.8 32.8
Max Distance Length ft 49.2 65.6
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Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
Cooling: Heating:
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
110
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
Current (A)
Current (A)
Current (A)
Current (A)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
:
110
90
80
120
110
100
100
40
60
80
Capacity ratio (%)
Capacity ratio (%)
20
0
Outdoor temp. (˚F)
Outdoor temp. (˚F)
70
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Indoor air flow: TURBO
Pipe length: 25 ft.
90 91 93 95 97 99 100 102 104 106 108 109 111 113 115
Conditions
Indoor: DB70°F
Indoor air flow: TURBO
Pipe length: 25 ft.
19 23 32 41 50
Cooling: Heating:
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
110
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
Current (A)
Current (A)
Current (A)
Current (A)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
:
110
90
80
120
110
100
100
40
60
80
Capacity ratio (%)
Capacity ratio (%)
20
0
Outdoor temp. (˚F)
Outdoor temp. (˚F)
70
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Indoor air flow: TURBO
Pipe length: 25 ft.
90 91 93 95 97 99 100 102 104 106 108 109 111 113 115
Conditions
Indoor: DB70°F
Indoor air flow: TURBO
Pipe length: 25 ft.
19 23 32 41 50
Cooling: Heating:
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
110
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120
80
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
Current (A)
Current (A)
Current (A)
Current (A)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
Compressor speed (rps)
:
110
90
80
120
110
100
100
40
60
80
Capacity ratio (%)
Capacity ratio (%)
20
0
Outdoor temp. (˚F)
Outdoor temp. (˚F)
70
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB70°F/WB60°F
Outdoor: DB47°F/WB43°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Outdoor: DB95°F/WB75°F
Indoor air flow: TURBO
Pipe length: 25 ft.
Conditions
Indoor: DB80°F/WB67°F
Indoor air flow: TURBO
Pipe length: 25 ft.
90 91 93 95 97 99 100 102 104 106 108 109 111 113 115
Conditions
Indoor: DB70°F
Indoor air flow: TURBO
Pipe length: 25 ft.
19 23 32 41 50
QS09-VJ115 QS09-VP115
QS12-VJ115 QS12-VP115
5
Technical Information
Service Manual
2.5 Cooling and Heating Data Sheet in Rated Frequency
2.4 Noise Curve
Cooling:
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
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
80/67 95/-
QS09-VJ115
QS09-VP115
0.8 ~ 1.1
12 to 15 65 to 38
TURBO High
Rated
QS12-VJ115
QS12-VP115
11 to 14 64 to 37 Rated
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:25 ft.
Heating:
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
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
67/60 47/43
QS09-VJ115
QS09-VP115
2.8 ~ 3.2
35 to 63 2 to 5
TURBO High
Rated
QS12-VJ115
QS12-VP115
35 to 65 2 to 5 Rated
40
30
20
Indoor side noise when blowing
Outdoor side noise
Indoor fan motor rotating speed
Low Middle High
Compressor frequency/Hz
35
25
Turbo
QS09-VJ115
QS12-VJ115
Noise/dB(A)
Noise/dB(A)
80 1006040200
70
60
50
40
30
45
QS09-VP115
QS12-VP115
6
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:inch
33 1/4"
5 1/8" 21 1/3"
2 5/7"
4 7/8"
2 1/6"2 1/6"
6 4/5"
10 5/6"
7"
7
Technical Information
Service Manual
21 1/4"
30 5/9"
10 1/8"
W D
11 1/4"
H
3.2 Outdoor Unit
Unit:inch
Model W H D
QS09-VP115 33 2/5" 21 1/4" 12 3/5"
QS12-VP115 33 2/5" 23 1/3" 12 3/5"
8
Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid : 1/4" (6 mm) Gas : 3/8" (9.52mm)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
COOLING
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Strainer
Strainer
Electron
expansion
valve
Strainer
Electron
expansion
valve
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.
L-OUT
L1
L1
0 0
RT1 RT2
M2
JUMP
CAP
TEM.SENSOR
ROOM
TUBE
TEM.SENSOR
FAN MOTOR
SWING MOTOR(U.D)
AP2
SWING-UD
K4
TUBEROOM
AC-L
PG
PGF
TR_OUT
TR_IN
TC
TRANSFORMER
13
DISPLAY
AP1
CN1
CN2
DISP2
DISP1
M1
GG
XT
W4 BU
W3 BN
N(1)
OUTDOOR UNIT
2
3
COM-OUT
W1 YEGN
YEGN
N
W5 BK
3
2
N(1)
XT1
TERMINAL
BLOCK
W2
I
II
ELECTRIC BOX
EVAPORATOR
10
Technical Information
Service Manual
● Outdoor Unit
These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
SAT
L3L3
CN2
HEAT1
HEAT -N
HEAT2
θ
RT3
RT2
θ
RT1
θ
TUBE
TEM.SENSOR
TEM.SENSOR
EXHAUST
OUTROOM
TEM.SENSOR
N
HEATER
(CHASSIS)
(COMP)
HEATER
W5
W6
W7
W11 WH
W12 RD
W2 BU
W1 BN
W4 BK
W9 YEGN
L1
L1
G
G
L4
L4
W13 YEGN
L
N
2
3
N(1)
L
POWER
2
3
N(1)
INDOOR
UNIT
TERMINAL
BLOCK
W19 RD
W14 BU
AC-L3
AC-L2
AC-N4
AC-N3
AC-N5 AC-L4AC-L2
W16 BN
W17 WH
W15 BU W18 OG
G
G
L2 L2 L2
G
CN1
EKV
COMU
AC-N2
4V
AC-L1
AC-N
RD
YE
BU
FAN MOTOR
W8 YEGN
COMP
W10 RD
W3 YEGN
AP1
W
V
U
V
W
E
U
OVERHEAT
E
OFAN
4YV
XT
3
4
E
2
1
FILTER
XT1
1
2
1
2
C3
C4
EH2
EH1
M
COMP
11
Technical Information
Service Manual
5.2 PCB Printed Diagram
● Top view
Indoor unit
● Bottom view
1 Neutral wire interface
2 Transformer input
3 PG motor interface
4
Neutral and live wire communication
interface
5 Auto button
6 PG motor feedback interface
7 Up&down swing interface
8 Jumper cap
9
Indoor ambient temp. sensor
interface
10 Tube temp. sensor interface
11 Display interface
12 Live wire interface
13 Transformer output
1 2
3
4
5 6 7
13
12
8
9
10
11
12
Technical Information
Service Manual
1 2 3 4 5 6
7
8
9
11 10
● Top view
Outdoor unit
● Bottom view
1 Port of DC fan motor 4
Port of compressor
electric heating band
7
Port of power supply
neutral wire
10
Port of electric expansion
valve
2 Port of AC fan motor 5
Port of compressor
electric heating band
8 Port of earthing wire 11 Port of compressor output
3 Port of DC fan motor 6
Port of power supply
neutral wire
9
Port of communication
wire
/ /
13
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
ON/OFF Button
2
3
1
5
6
4
8
9
7
11
12
10
MODE Button
+/- Button
FAN Button
TIMER ON/TIMER-OFF Button
X-FAN Button
TEMP Button
LIGHT Button
SLEEP Button
CLOCK Button
TURBO Button
Button
2
6
8
3
9
10
7
5
12
11
4
1
Auto mode
Cool mode
Heat mode
Fan mode
Dry mode
Clock
Light
Child lock
TIMER ON/TIMER OFF
Up&down swing
:Indoor ambient temp.
:Set temp.
:Outdoor ambient temp.
Sleep mode
Set temperature
Send signal
Turbo mode
Set time
X-fan mode
Set fan speed
Operation mode
Temp. display type
1. ON/OFF 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.
2. MODE Button
Press this button to select your required operation mode.
Note: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.
AUTO COOL DRY FAN HEAT
14
Technical Information
Service Manual
4. FAN Button
Pressing this button can set fan speed circularly as: auto (AUTO), low( ) ,medium( ),high( ).
Note:
● Under AUTO speed, fan motor will adjust the fan speed (high, medium or low speed) according to ambient temperature.
● Fan speed under dry mode is low speed.
● When selecting auto mode, air conditioner will operate automatically according to exfactory 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.
● When 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 noheating.All mode indicators on indoor display 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
℃
; Fan speed: auto, low speed,medium speed, high speed.
3. “+” or“-” Button
● Press “+” or “-“ button once increase or decrease set temperature 1
℃
.Holding "+" or "-" button, 2s later, set temperature on remote
controller will change quickly. On releasing button after setting is nished, 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)
6. CLOCK Button
Press this button to set clock time. " " icon on remote controller will blink. Pess "+" 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 conrm 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.
7. TIMER-ON/TIMER-OFF Button
● TIMER ON button
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
5. Button
Press this button can select up&down swing angle. Fan blow angle can be selectedcircularly as below:
● 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 fixed position. Horizontal louver will stop at the fixed
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.
Auto
(horizontal louvers
stops at current position)
no display
15
Technical Information
Service Manual
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 conrm 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
"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.
8. X-FAN Button
Press this button under cool and dry mode to start up x-fan function, and " " icon on remote controller will be displayed. Press this
button again to cancel x-fan function, and " "icon will disappear.
Note:
● When x-fan function is started up, if the air conditioner is turned off, indoor fan will still operate at low speed for a while to blow the
residual water inside the air duct.
● During x-fan operation, press X-FAN button to turn off x-fan function. Indoor fan will stop operation immediately.
9. 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:
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
10. 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.
11. SLEEP Button
Under COOL or HEAT mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this
button again to cancel sleep function and " " icon will disappear.
12. LIGHT 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.
Child lock function:
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, it won’t send signal.
Temperature display switchover function:
Under OFF status, press "-" and "MODE" buttons simultaneously to switch temperature display between
℃
and
℉
.
no display
Function Introduction for Combination Buttons
16
Technical Information
Service Manual
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.
● Signal may be interfered easily in the room where there is fluorescent lamp or
wireless telephone; 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.
Signal sender
Battery
Cover of
battery box
Remove
Reinstall
If remote controller is lost or damaged, please use auxiliary button to turn on or turn
off the air conditioner. The operation in details are as below: As shown in the g.
Open panel, press aux. button to turn on or turn off the air conditioner. When the air
conditioner is turned on, it will operate under auto mode.
Emergency Operation
Emergency operation
switch
Panel
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 " " button to select fan blowing angle.
1.Press the back side of remote controller marked with“ ”as shown in the g, and then push out the 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.
Operation Guide
Replacement of Batteries in Remote Controller
2
3
5
4
1
17
Technical Information
Service Manual
1.Temperature Parameters
◆
Indoor preset temperature (Tpreset)
◆
Indoor ambient temperature (Tamb.)
◆补偿温度（T 补）
2.Basic Functions
Once the unit energized,the compressor shall never be restarted except 3mins interval at least.For the rst energization,if the unit is at off
status before power failure, the compressor can be restarted without 3-min delay. But if the unit is at ON status before power failure, the
compressor shall be restarted with 3mins delay. Once the compressor is started up, the compressor won’t stop running within 6mins with
the change of room temperature.
(1)Cooling Mode
1. Under this mode, fan and swing function will be operating under setting mode, and temperature setting range is 61~86°F.
2. When outdoor unit is with malfunction or stop operation because of malfunction, indoor unit will keep its original operation status and
display the malfunction.
3. When 0°F≤(setting temperature-ambient temperature)<3.6°F, if indoor fan speed is at high level, it will turn to medium level (when
compressor is operating); if indoor fan speed is at ultra high level, it will not turn to other fan speed; when (ambient temperature-setting
temperature)≥1.8°F, the fan speed will resume to setting value.
(2) Dry Mode
1. Under this mode, fan will operate as low fan speed and swing at setting status, temperature setting range is 61~86°F.
2. When outdoor unit is with malfunction or stop operation because of malfunction, indoor unit will keep its original operation status and dis-
play the malfunction.
(3) Heating Mode
1. Heating Conditions and Process
When the unit is powered on and is under heating mode, IDU will turn to anti cold wind function; when the unit is powered off and the in-
door fan had ever turned on, the unit will turn to blowing residual heat.
2. When the compressor is running (doesn’t include entering each malfunction and protection):
a. When Toutdoor amblent≥68°F, if the indoor fan speed is low or medium, the fan speed will switch to high speed;if the fan speed is high
or turbo, the fan speed will not change.
b. When Toutdoor amblent≤64°F, the fan speed will turn back to set fan speed;
c. When 64°F<Toutdoor ambient<68°F, the unit will run in present fan speed (set fan speed or high fan speed); but if the unit quits anti cold
wind for the rst time in heating mode, the unit will run in set fan speed.
3.Defrosting
When there’s too much frost on outdoor condenser, the complete unit will enter into defrosting automatically to assure the best heating ef-
fect. During defrosting process, the heating indicator is on for 10s and off for 0.5s.
4.Blow Residual Heat
When heating temperature reaches to the temperature point of stop operation, compressor and outdoor fan will stop operation. The hori-
zontal louver rotates to the defaulted position in cooling mode. Indoor fan will stop operation after operating at set fan speed for 60s.
When the unit operates in heating or auto heating mode, compressor is started up and the unit will stop operation after indoor fan starts
operation. Compressor and outdoor fan stop operation. The horizontal louver will rotate to the position of breeze (defaulted position in cool-
ing). The unit will stop operation after indoor fan operates at low fan speed for 10s.
If the indoor fan stops due to blocking of PG motor, the louvers stop at the position when the unit stops. (If the unit stops for other
malfunction,the vertical louvers turn to cooling position 2) Indoor fan runs in set fan speed for 60s and then stops.
5.Cold Air Prevention
After the compressor starts, the indoor unit and louvers run in the mode below:
①
When Tindoor ambient<75°F: if Ttube≤104°F, the indoor fan doesn’t run and then the indoor fan runs in low fan speed after 2min. In
2min, if Ttube>104°F, the indoor fan will also run in low fan speed; after running in low speed for 1min, the indoor fan will turn to run in set
fan speed. In 1 minute of low fan speed or in 2 minute that the indoor fan doesn’t run, if Ttube>108°F, the indoor fan will turn to run in set
fan speed.
②
When Tindoor ambient≥75°F: if Ttube≤108°F, the indoor fan runs in low fan speed and then the indoor fan runs in set fan speed after
1min. In 1min of running in low fan speed, if Ttube>108°F, the indoor fan will turn to run in set fan speed.
Note: Tindoor ambient in
①
and
②
means at the beginning of heating mode, the indoor ambient temperature before starting up the com-
pressor, or after quitting defrosting, the indoor ambient temperature before clearing the defrosting symbol.
(4) Fan Mode
In fan mode, indoor fan operates at set fan speed, while compressor and outdoor fan all stop operation.
In fan mode, the temperature setting range is 61~86°F. Display is displaying operation icon and set temperature.
(5) Auto Mode
In auto mode, the system will select the operation mode (cooling, hearing of fan mode) according to the change of ambient temperature
automatically. The display displays operation icon, actual operation mode and set temperature. 30s will be delayed for protection during
6.2 Brief Description of Modes and Functions
●Indoor Unit
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