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Service Manual
MODEL:GWH09AB-A3DNA1B
GWH12AB-A3DNA1B
GWH12AB-D3DNA1B
(Refrigerant R410A)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Table of Contents
Summary and features..................................................................................1
Part 1 Safety Precautions..........................................................................................2
Part 2 Specifications.....................................................................................................3
Part 3 Construction Views........................................................................................7
3.1 Indoor Unit .............................................................................................................7
3.2 Outdoor Unit ..........................................................................................................7
Part 4 Refrigerant System Diagram.....................................................................8
Part 5 Schematic Diagram........................................................................................9
5.1 Electrical Data........................................................................................................9
5.2 Electrical Wiring......................................................................................................9
5.3 Printed Circuit Board.............................................................................................12
Part 6 Function and Control...................................................................................15
6.1 Remote Control Operations..................................................................................15
6.2 Changing Batteries and Notices ..........................................................................17
6.3 Description of Each Control Operation.................................................................18
Part 7 Installation Manual ........................................................................................23
7.1 Notices for Installation...........................................................................................23
7.2 Installation Drawing..............................................................................................25
7.3 Install Indoor Unit.................................................................................................26
7.4 Install Outdoor Unit ..............................................................................................28
7.5 Check After Installation and Operation Test.........................................................29
Table of Contents
Part 8 Exploded Views and Parts List..............................................................30
8.1 Indoor unit.............................................................................................................30
8.2 Outdoor unit..........................................................................................................34
Part 9 Troubleshooting...............................................................................................40
9.1 Malfunction Analysis.............................................................................................40
9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement............................44
9.3 How to Check Simply the Main Part.....................................................................47
Part10 Removal Procedure.......................................................................................56
10.1 Removal Procedure of Indoor Unit.....................................................................56
10.2 Removal Procedure of Outdoor Unit...................................................................59
The pic. below is the actual panel and the vectorgraph in the manual is for reference only.
Summary and features
Summary and features
Indoor Unit
GWH09AB-A3DNA1B/I
GWH12AB-A3DNA1B/I
GWH12AB-D3DNA1B/I
Outdoor Unit
GWH09AB-A3DNA1B/O
GWH12AB-A3DNA1B/O
GWH12AB-D3DNA1B/O
Remote control window
YT1FF
FAN
MODE
I FEEL
CLOCK
1
TIMER
ON
X-FAN
TEMP
TIMER
OFF
TURBO
SLEEP
LIGHT
1.Safety Precautions
Safety Precautions
Installing, starting up, and servicing air--conditioning equipment
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
install, start--up, and service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning coils. All other operations should be performed by
trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep
quenching cloth and fire extinguisher nearby when brazing. Use
care in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult
local building codes and current editions of the National Electrical
Code ( NEC ).
Recognize safety information. This is the safety--alert symbol !! .
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.Understand
these signal words: DANGER, WARNING, and CAUTION.
These words are used with the safety--alert symbol. DANGER
identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which may result in minor personal injury
or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
!
The unit should be installed according to the instructions
in order to minimize the risk of damage from earthquakes,
hurricanes or strong winds.
Contact of refrigerant and fire generates poisonous gas.
Use specified refrigerant only.
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Never use the system compressor as a vacuum pump.
Refrigerant lines and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if the procedure outlined
below is followed. Always break a vacuum with dry nitrogen.
Keep your fingers and clothing away from any moving parts.
Clear the site after installation. Make sure no foreign objects
are left in the unit.
Always ensure effective grounding for the unit.
WARNING
Caution
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Never install on the place where a combustible gas might
leak , or it may lead to fire or explosion.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and
tag switch with a suitable warning label.
When the unit is installed at telecommunication centers or
hospitals, take a proper provision against noise.
Highly dangerous electrical voltages are used in this
When installing at a watery place, provide an electric leak
ground fault breaker.
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections or inad-
Do not wash the unit with water.
Be very careful about unit transportation.The unit should not
equate grounding can cause accidental injury or death.
Ground the unit according to local electrical codes.
be carried by only one person if it is more than 45lb.
Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.
Do not touch the heat exchanger fins w i th bare hands.
Make sure the ceiling/wall is strong enough to hold the
unit’s weight. The outdoor unit should be installed in a
Do not touch the compressor or refrigerant piping whithout
wearing glove.
location where air and noise emitted by the unit will not
disturb the neighbors.
Do not operate the air conditioner without air filter.
Properly insulate any refrigerant or condensate linerunning
inside a room to prevent "sweating" that can cause dripping
water and damage to walls and floors.
Should any emergency occur, stop the unit and disconnect the
power immediately.
The outdoor unit must be installed on stable, level surface,
where there is no accumulation of snow, leaves or rubbish.
2
Specifications
2.Specifications
Parameter
Value
Unit
Model
Product Code
Power
Supply
Rated Voltage
Rated Frequency
V̚
Hz
Phases
Power Supply Model
GWH09AB-A3DNA1B
GWH12AB-A3DNA1B
CB11500550
CB11500570
115
115
60
60
1
1
Outdoor
Outdoor
Cooling Capacity (Min̚Max)
Btu/h
9000(4000̚11950)
12000(4500̚13000)
Heating Capacity (Min̚Max)
Btu/h
9500(3412̚12500)
11700(3200̚14000)
Cooling Power Input (Min̚Max)
W
630(166̚1180)
Heating Power Input (Min̚Max)
W
680(200̚1230)
Cooling Power Current
Heating Power Current
A
A
8
8.5
13
14.5
Rated Input
W
1100
1300
Rated Current
960(160̚1180)
1140(400̚1250)
A
10
12
Air Flow Volume
CFM
300
Moisture Removal
gal./hr
0.32
300
0.37
EER
BTU/W
14.3
12.5
COP
W/W
4.04
3.34
SEER
W/W
23
22
HSPF
W/W
Application Area
sq.ft.
9.8
Model of indoor unit
Fan Type
Diameter Length(DXL)
inch
172-258
GWH09AB-A3DNA1B/I
GWH12AB-A3DNA1B/I
Cross-flow
Cross-flow
ĭ(3-3/8)X(26-3/10)
ĭ(3-3/8)X(26-3/10)
Fan Motor Cooling Speed (SH/H/M/L/SL)
r/min
1400/1150/1050/900/-
1500/1150/1050/900/-
Fan Motor Heating Speed (SH/H/M/L/SL)
r/min
1450/1250/1150/1050/400
1450/1250/1150/1050/400
W
10
10
Output of Fan Motor
Fan Motor RLA
A
/
/
Fan Motor Capacitor
ȝF
/
/
Input of Heater
W
Evaporator Form
Indoor
Unit
8.9
129-194
/
/
Aluminum Fin-copper Tube
Aluminum Fin-copper Tube
ĭ11/40
Pipe Diameter
inch
Row-fin Gap
inch
2-1/17
Coil Length (LXDXW)
inch
(25-7/8)X1X(11-2/9)
Swing Motor Model
MP28VB
ĭ11/40
2-1/17
(25-7/8)X1X(11-2/9)
MP28VB
Output of Swing Motor
W
2
2
Fuse
A
3.15
3.15
Sound Pressure Level (SH/H/M/L/SL)
dB (A)
42/38/30/28/-
42/38/30/28/-
Sound Power Level (SH/H/M/L/SL)
dB (A)
52/48/40/38/-
52/48/40/38/-
inch
34.3X11.1X7
34.3X11.1X7
Dimension of Carton Box (W/H/D)
inch
36.8X14.7X10.2
36.8X14.7X10.2
Dimension of Package (W/H/D)
inch
36.8X14.7X10.2
36.8X14.7X10.2
Net Weight
lb.
lb.
Dimension (WXHXD)
Gross Weight
26
33
3
26
33
Specifications
Model of Outdoor Unit
Compressor Manufacturer/Trademark
GWH09AB-A3DNA1B/O
GWH12AB-A3DNA1B/O
CHINA
RESOURCES(SHENYANG)
SANYO COMPRESSOR CO.
LTD./SANYO
CHINA
RESOURCES(SHENYANG)
SANYO COMPRESSOR CO.
LTD./SANYO
C-6RZ110H1A
FV50S
Rotary
C-6RZ110H1A
FV50S
Rotary
33.00
4.59
800
Int11l-3979
Electron expansion valve
61̚86
41̚115
33
4.59
800
Int11l-3979
Electron expansion valve
Compressor Model
Compressor Oil
Compressor Type
L.R.A.
Compressor RLA
Compressor Power Input
Overload Protector
Throttling Method
Operation temp
Ambient temp (cooling)
Ambient temp (heating)
Condenser Form
Pipe Diameter
Rows-fin Gap
Coil Length (LXDXW)
Fan Motor Speed
Outdoor Output of Fan Motor
Unit
Fan Motor RLA
Fan Motor Capacitor
Air Flow Volume of Outdoor Unit
Fan Type
Fan Diameter
Defrosting Method
Climate Type
A
A
W
ºF
ºF
ºF　５̚86
Aluminum Fin-copper Tube
inch
ĭ3/8
2-1/18
inch
inch
rpm
W
(29-2/5)X(1-3/4)X20
830
30
61̚86
41̚115
5̚８６
Aluminum Fin-copper Tube
ĭ3/8
2-1/18
(29-2/5)X(1-3/4)X20
830
30
A
ȝF
/
/
/
/
CFM
1059
Axial-flow
ĭ(15-3/4)
Automatic Defrosting
T1
1177
Axial-flow
ĭ(15-3/4)
Automatic Defrosting
T1
I
IP24
I
IP24
inch
Isolation
Moisture Protection
Permissible Excessive Operating
Pressure for the Discharge Side
Permissible Excessive Operating
Pressure for the Suction Side
MPa
3.8
3.8
MPa
1.2
1.2
Sound Pressure Level (H/M/L)
Sound Power Level (H/M/L)
Dimension (WXHXD)
Dimension of Carton Box (W/H/D)
dB (A)
dB (A)
inch
inch
52/-/62/-/33.3X21.3X12.6
34.5X22.8X14.2
55/-/65/-/33.3X23.2X12.6
inch
34.5X22.8X14.2
lb.
lb.
88
96
Dimension of Package (W/H/D)
Net Weight
Gross Weight
Refrigerant
Refrigerant Charge
Precharge line length
Gas Additional Charge
Connecti Outer Diameter Liquid Pipe
on Pipe Outer Diameter Gas Pipe
Max Distance Height
Max Distance Length
R410A
oz.
ft.
lb./ft.
inch
47.6
16
0.14
ĭ1/4
inch
ft.
ft.
ĭ3/8
33
66
The above data is subject to change without notice. Please refer to the nameplate of the unit.
4
34.5X24.8X14.2
34.5X24.8X14.2
90
99
R410A
47.6
16
0.14
ĭ1/4
ĭ1/2
33
66
Specifications
Parameter
Unit
GWH12AB-D3DNA1B
Model
CB11500380
Product Code
Power
Supply
Value
Rated Voltage
Rated Frequency
V̚
Hz
208/230
60
Phases
1
Power Supply Model
Outdoor
Cooling Capacity (Min̚Max)
Btu/h
12000(4500̚13000)
Heating Capacity (Min̚Max)
Btu/h
13000(3200̚14000)
Cooling Power Input (Min̚Max)
W
960(160̚1180)
Heating Power Input (Min̚Max)
W
1140(400̚1250)
Cooling Power Current
A
5
Heating Power Current
A
5.5
Rated Input
W
1200
Rated Current
A
6
Air Flow Volume
CFM
330
Moisture Removal
gal./hr.
0.37
EER
BTU/W
12.5
COP
W/W
3.34
SEER
W/W
22
HSPF
W/W
10.5
sq.ft.
172-258
GWH12AB-D3DNA1B/I
Application Area
Model of indoor unit
Fan Type
Cross-flow
Diameter Length(DXL)
inch
ĭ(3-3/8)X(26-3/10)
Fan Motor Cooling Speed (SH/H/M/L/SL)
r/min
1500/1150/1050/900/-
Fan Motor Heating Speed (SH/H/M/L/SL)
r/min
1450/1250/1150/1050/400
Output of Fan Motor
W
10
Fan Motor RLA
A
/
Fan Motor Capacitor
ȝF
/
Input of Heater
W
/
Evaporator Form
Indoor
Unit
Aluminum Fin-copper Tube
Pipe Diameter
inch
ĭ11/40
Row-fin Gap
inch
2-1/17
Coil Length (LXDXW)
inch
Swing Motor Model
Output of Swing Motor
Fuse
(25-7/8)X1X(11-2/9)
MP28VB
W
2
A
3.15
Sound Pressure Level (SH/H/M/L/SL)
dB (A)
47/38/30/28/-
Sound Power Level (SH/H/M/L/SL)
dB (A)
57/48/40/38/-
Dimension (WXHXD)
inch
34.3X11.1X7
Dimension of Carton Box (W/H/D)
inch
36.8X14.7X10.2
Dimension of Package (W/H/D)
inch
36.8X14.7X10.2
Net Weight
lb.
26
Gross Weight
lb.
33
5
Specifications
Model of Outdoor Unit
GWH12AB-D3DNA1B/O
CHINA RESOURCES(SHENYANG) SANYO
COMPRESSOR CO. LTD./SANYO
Compressor Manufacturer/Trademark
Compressor Model
Compressor Oil
C-6RZ110H1A
FV50S
Compressor Type
L.R.A.
A
Rotary
33.00
Compressor RLA
Compressor Power Input
A
W
4.59
800
Overload Protector
Throttling Method
Int11l-3979
Electron expansion valve
Operation temp
Ambient temp (cooling)
ºF
ºF
Ambient temp (heating)
Condenser Form
ºF
5̚86
Aluminum Fin-copper Tube
inch
inch
ĭ3/8
2-1/18
inch
rpm
W
A
ȝF
(29-2/5)X(1-3/4)X22
830
30
/
/
CFM
1177
Axial-flow
ĭ(15-3/4)
Automatic Defrosting
T1
I
IP24
Pipe Diameter
Rows-fin Gap
Coil Length (LXDXW)
Fan Motor Speed
Output of Fan Motor
Outdoor Fan Motor RLA
Unit
Fan Motor Capacitor
Air Flow Volume of Outdoor Unit
Fan Type
Fan Diameter
Defrosting Method
Climate Type
Isolation
Moisture Protection
Permissible Excessive Operating Pressure for the
Discharge Side
inch
Permissible Excessive Operating Pressure for the
Suction Side
Sound Pressure Level (H/M/L)
Sound Power Level (H/M/L)
Dimension (WXHXD)
61̚86
４１̚１１５
PSI
551
PSI
174
dB (A)
dB (A)
inch
55/-/65/-/33.3X23.2X12.6
Dimension of Carton Box (W/H/D)
inch
34.5X24.8X14.2
Dimension of Package (W/H/D)
Net Weight
Gross Weight
inch
lb.
lb.
34.5X24.8X14.2
90
99
Refrigerant
Refrigerant Charge
R410A
oz.
45.8
Precharge line length
Gas Additional Charge
ft.
lb./ft.
16
0.14
inch
inch
ĭ1/4
ĭ1/2
ft.
ft.
33
66
Connecti Outer Diameter Liquid Pipe
on Pipe Outer Diameter Gas Pipe
Max Distance Height
Max Distance Length
The above data is subject to change without notice. Please refer to the nameplate of the unit.
6
Constrction views
3. Construction Views
11-1/7
3.1 Indoor Unit (THE SAME DIMS FOR 9k12k)
34-1/3
7
12K Unit:
4
23-4/5
6-8/15
H
3.2 Outdoor Unit
W
D
11-1/4
Unit:inch
21-1/4
7
Model
W
H
D
09K
33-3/8
21-1/4
12-3/5
12K
33-3/8
23-2/9
12-3/5
Refrigerant System Diagram
4. Refrigerant System Diagram
Heat exchanger
( INDOOR )
Compressor
Muffler
4-Way valve
Sub-accumulator
Strainer
Expansion valve
Heat exchanger
( OUTDOOR )
Strainer
Cooling
Heating
Refrigerant Pipe Diameter
Liquid
Gas
09K
1/4ą
3/8ą
12K
1/4ą
1/2ą
8
Schematic Diagram
5. Schematic Diagram
5.1 Electrical Date
Indoor Unit
Symbol
Color symbol
Symbol
Color symbol
WH
WHITE
BN
YE
YELLOW
BU
BLUE
RD
RED
BK
BLACK
YEGN
BROWN
YELLOW GREEN
Ground
Outdoor Unit
Symbol
Parts name
Symbol
L1 L2
1OLQH)URQWOLQH
WH
WHITE
YELLOW
RED
4YV
ZD\YDOY
YE
EKV
electric expansion valv
RD
Color symbol
L
reactor
BN
SAT OVERLOAD BN BROWN
COMP
COMPRESSOR
BU
BLUE
Ground
BK
BLACK
YEGN
YELLOW GREEN
5.2 Electrical wiring
Indoor Unit
(1) Models GWH09AB-A3DNA1B/I ,GWH12AB-A3DNA1B/I
ROOM
TUBE
TEM.SENSOR TEM.SENSOR
0
RT2
ROOM
N1
DISP3 DISP4
TUBE
W4 BU
L1
COM-INNER
JUMP
SWING-UD
L
AP2
W5 BK
W3 BN
L1
XT1
N(1)
2
3
W2 YEGN
W1YEGN
CN1
HEALTH-LHEALTH-N
RD
M
STEP MOTOR
M
FANMOTOR
BU
COOL PLASMA
GENERATOR
YEGN
G
9
EVAPORATOR
ELECTRIC BOX
G
G
OUTDOOR UNIT
0
RT1
AP1 DISPLAY
Schematic Diagram
(2) Model GWH12AB-D3DNA1B/I
ROOM
TUBE
TEM.SENSOR TEM.SENSOR
0
RT2
ROOM
TUBE
L1
L1
E
SWING-UD
2
3
W3BN
L
AP2
N(1)
W5BK
COM-INNER
JUMP
XT1
W4BU
N1
DISP3 DISP4
W2YEGN
L1
W1 YEGN
W6YEGN
CN1
OUTDOOR UNIT
0
RT1
AP1 DISPLAY
HEALTH-L HEALTH-N
RD
M
ELECTRIC BOX
G
G
BU
COOL PLASMA
GENERATOR
M
STEP MOTOR
EVAPORATOR
YEGN
G
FAN MOTOR
Outdoor Unit
(1) Models GWH09AB-A3DNA1B/O,GWH12AB-A3DNA1B/O
COMP
CT1,2
W10 RD
W3 YEGN
R COMP E
TUBE
OUTROOM EXHUAST
TEM.SENSOR TEM.SENSOR TEM.SENSOR
RT3
RT4
RT5
0
0
0
L2
L2
G
XT2
G
W
V
OUTROOM EXHAUST
W15 BU
N(1)
W4 BK
2
3
AP1
COMU
W14 BN
FILTER
L1 W1 BN
L
U
N
I
T
OVERHEAT OUTTUBE
E
G
L2
W5 BU W6 YE W7 BK
U
I
N
D
O
O
R
C W8 YEGN
S
L1 W2 BU
N
1 3
2 4
L4
W17 RD
L4 W16 WH
AC-L1
AC-N1
CN1
OFAN
EKV
M
E
W13 YEGN
POWER
N
L
AC-N3 AC-N4 AC-L3 AC-L2
AC-N5 AC-L2 AC-L4
4V
AC-N2
W18 YEGN
W20 BU W23 OG W21 BN
G
G
W19 BU
W24 RD
C4
C3
1
2
2
1
W22 WH
10
4YV
FAN MOTOR
G
Schematic Diagram
(2) Models GWH09AB-A3DNA1B/O,GWH12AB-A3DNA1B/O
COMP
CT1,2
W3 YEGN
W10 RD
I
N
D
O
O
R
RT4
RT5
0
0
0
L2
L2
W5 BU W6 YE
OUTTUBE
OUTROOM
C W8 YEGN
S
U
OVERHEAT
XT2
L2
W7 BK
V
G
W
EXHAUST
W15 BU
N(1)
L1 W4 BK
2
3
L1 W1 BN
L1 W2 BU
L2
G
AP1
COMU
W14 BN
L1
U
N
I
T
RT3
E
G
G
R COMP E
TUBE
EXHUAST
OUTROOM
TEM.SENSOR TEM.SENSOR TEM.SENSOR
AC-L1
N1
CN1
OFAN
4V
W13 YEGN
AC-L2
AC-L3
N2
N3
POWER
N
W12 WH
W11 OG
M
L
EKV
4YV
G
L
W 9 BU
FAN MOTOR
G
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
11
Schematic Diagram
5.3 Printed Circuit Board
Interface of
indoor fan
Transformer with
Auto button
high frequency
Vertical swing
Interface for live wire
of health function
Interface for display
Interface for
communication
Protective tube
Jumper cap
Interface for null wire
of health function
TOP VIEW
Indoor tambien temp sensor
Main chip
Indoor pipe temp sensor
BOTTOM VIEW
12
Schematic Diagram
(1) Models GWH09AB-A3DNA1B/O , GWH12AB-A3DNA1B/O
TOP VIEW
Jumper null wire
Positive pole
of big capacitor
Jumper null wire
(brown wire)
Negative pole
of big capacitor
(blue wire)
Terminal for fan
Terminal for
4-way valve
electronic
expansion valve
Terminal for
live wire
Terminal for
null wire of
4-way valve
Jumper
live wire
Terminal for
ground wire
Jumper live wire,
joint terminal for
positive pole and
negative pole of
two capacitors(
orange wire)
Protective tube
for switch power
Transformer with
high frequency
Voltage
regulator 7805
IPM module
Overload
temp sensor
Three-phase terminal
of compressor
Phase U-blue wire
Phase Y-yellow wire
Phase W-red wire
BOTTOM VIEW
13
Outdoor ambient
temp sensor
Compressor
discharge temp
sensor
Terminal for null wire
Outdoor pipe
temp sensor
Terminal for communication
wire connecting to black
communication wire of IDU.
Schematic Diagram
(2) Model GWH12AB-D3DNA1B/O
TOP VIEW
Electrolysis
condenser
Jumper terminal
for null wire,
connecting to N3
electronic
expansion valve
Terminal for DC fan
Terminal for live wire
connecting to reactor
and 4-way valve
Terminal for
4-way valve
Main relay
Terminal for
ground wire
Terminal for live
wire, connecting
to reactor
Jumper terminal
for null wire,
connecting to N2
Protective tube
Chip for
switch power
Voltage regulator7805 IPM module
Transformer with
high frequency
Compressor
discharge
temp sensor
Terminal for
overload protector
of compressor
BOTTOM VIEW
14
Terminal for
communication wire
Outdoor ambient
Outdoor pipe temp sensor
temp sensor
Terminal for live wire
Terminal for null wire
Function and Control
6. Function and Control
6.1 Remote Control Operations
1
ON/OFF Button
2
Setpoint Temperature DOWN Button
3
Setpoint Temperature UP Button
4
FAN Speed Button
5
MODE Button
6
1
2
4
6
7
HEALTH function Button
8
AIR function Button
3
5
7
8
9
10
11
12
13
14
15
16
17
I FEEL Button
9
10
Clock Button
Timer ON Button
11
12
X-FAN Button
13
Temperature Displaye Button
14
TIMER OFF Button
15
TURBO Button
16
Sleep Mode Button
17
Light Mode Button
(X-FAN is the alternative expression of
BLOW for the purpose of understanding.)
1
Press this button, the unit will be turned on, press it once more, the unit will be turned off.
2
. button, sets temperature,when unit is on . Continuously press and hold this
To lower temperature set point. Press this
button for more than 2 seconds,the corresponding contents will be changed rapidly，but in AUTO mode, set temperature is not adjustable.
3
+:
To increase temperature set point. Press this button, the temperature can be set up, continuously press this button and
hold for two seconds, the relative contents can quickly change, but in AUTO mode, set temperature is not adjustable.
4 FAN :
Press this button, Auto, Low, Middle, High speed can be circularly selected. After powered on, Auto fan speed is default.
Under Dehumidify mode, Low fan speed only can be set up.
15
Function and Control
Auto
Low speed
Medium speed
High speed
5 MODE :
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; In this mode, the unit will automatically select the suitable operation mode in accordance with the room temperature to make the room more comfortable for you.
AUTO
COOL
DRY
FAN
HEAT
Note:Only for models with heating function.
6 I FEEL :
Press this button, I FEEL On and I FEEL Off can be selected.In the I FEEL function.
The unit will adjust temperature automatically according to the sensed temperature.
7
(The function is not for the models mentioned in the manual.)
Press this button to set HEALTH function ON or OFF. After the unit is turned on, it defaults to HEALTH function ON.
8
(The function is not for the models mentioned in the manual.)
Press this button to select AIR function ON or OFF.
9 CLOCK :
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 blinking, repress the Clock button, signal
eeded. After powered on, 12:00 is defaulted to display and signal
will be constantly displayed and it denotes the setting succwill be displayed. If there is signal
be displayed that
denotes the current time value is Clock value, otherwise is Timer value.
10 TIMER ON :
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, thenthe one place is constant, ten
numbers change in the tens place 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 On button, the Timer On will be canceled. Before setting the
Timer, please adjust the Clock to the current actual time.
11
:
Press this button, to set up swing angle, which circularly changes as below:
OFF
This is an universal use remote controller. If remote controller sends the following three kinds of status
,
or
status of main unit will be
which indicates the guide louver swings up and down between that all five positions:
, the swing
When the guide louver start to swing up and down, if turn off the Swing, the air guide louver will stop at current position.
12 X-FAN :
Pressing X -FAN button in COOL or DRY mode,the icon is displayed and the indoor fan will continue operation for 10 minutes in
order to dry the indoor unit even you have turned off the unit.After energization, X-FAN OFF is defaulted. X-FAN is not available
in AUTO,FAN or HEAT mode.
16
Function and Control
13 TEMP :
Press this button, could select displaying
(the indoor setting temperature) , (indoor ambient temperature )or
(
outdoor am-bient temperature) .The unit defaults not to display the icon. During operation of TEMP button, the set temperature is always displayed
14
TIMER OFF ：
Once press this key to enter into TIMER OFF setup, in which case the TIMER OFF icon will blink.The method of setting
is the same as TIMER ON.
15
TURBO:
Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in
shortest time. Such as in COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the
unit will blow strong heating air at super high fan speed.
(This function is not applicable for some models)
16
SLEEP:
Press this button, Sleep On and Sleep Off can be selected. After Sleep function set up, the unit will automatically select
the suitable operation mode to maintain the most comfortable temperature for you. This function is available in COOL ,
HEAT or DRY mode
17
LIGHT:
Press this button to select LIGHT on or off in the displayer. When the LIGHT on is set,the icon
will be displayed and
the indicator light in the displayer will be on. When the LIGHT off is set, the icon will be displayed and the indicator
light in thedisplayer will be off.
18
"+" and "–"button about lock:
Press "+ " and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
In this case, pressing any button ,
blinks three times.
19
is displayed .
"MODE" and " - " buttons About switch between fahrenheit and celsius:
At unit OFF, press "MODE" and " - " buttons simultaneously to switch between ℉ and ℃.
6.2 Changing batteries and notices
1．Slightly to press the place with
, along the arrowhead direction to push the back
cover of wireless remote control. (As show in figure)
2. Take out the old batteries. (As show in figure)
3. Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
(As show in figure)
4 .Attach the back cover of wireless remote control. (As show in figure)
ƾ Notes:
●
When replacing the batteries, do not use old or different types of batteries,otheerwise,
it may cause malfunction.
●
If the remote controller will not be used for a long time, please remove batteries
to prevent batteries from leaking.
●
The operation should be performed in its receiving range.
●
●
It should be kept 1m away from the TV set or stereo sound sets.
If the remote controller does not operate normally, please take the batteries out
and replace them after 30 seconds.If still not operating properly, replace the batteries.
17
Sketch map for
replacing batteries
Function and Control
6.3 Description of Each Control Operation
1. Temperature Parameters
Indoor preset temperature (Tpreset)
Indoor ambient temperature (T amb.)
2. Basic Functions
Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function
is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without
a 3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and
once started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature;
(1) Cooling Mode
Working conditions and process of cooling
When Tamb Tpreset, the unit will enter cooling operation, in which case the indoor fan, the outdoor fan and the compressor will
work and the indoor fan will run at preset speed.
When Tamb Tpreset -28.4 ºF , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will run
at preset speed.
When Tpreset -28.4 ºF < Tamb.< Tpreset +33.8 ºF , the unit will remain at its previous state.
Under this mode, the four-way valve will be de-energized and temperature can be set within a range from 61 to 86 ºF
If the compressor is shut down for some reason, the indoor fan and the swing device will operate at original state.
Tamb
Start cooling
Tpreset
Original working state
Treset28.4 ºF
Stop cooling
6 minutes
3 minutes
6 minutes
Compresso
r
Outdoor fan
Indoor fan
Preset fan speed
Run
Stop
Protection
Antifreeze protection
Under cooling and dehumidifying mode, 6 minutes after the compressor is started:
If T evap 35.6 ºF, the compressor will operate at reduced frequency.
If T evap 30.2 ºF is detected for durative 3 minutes, the compressor will stop, and after 30 seconds, the outdoor fan will stop;
and under cooling mode, the indoor fan and the swing motor will remain at the original state.
42.8 ºF and the compressor has remained at OFF for at least 3 minutes, the compressor will resume its original
If T evap.
operation state.
Total current up and frequency down protection
If Itotal A, frequency rise will be allowed; if Itotal B, frequency rise will not be allowed; ifItotal
run at reduced frequency; and if Itotal
C, the compressor will
D, the compressor will stop and the outdoor fan will stop with a time lag of 30s.
(2) Dehumidifying Mode
Working conditions and process of dehumidifying
If Tamb>Tpreset, the unit will enter cooling and dehumidifying mode, in which case the compressor and the outdoor fan will
operate and the indoor fan will run at low speed.
If Tpreset 28.4 ºF Tamb Tpreset, the compressor remains at its original operation state.
If Tamb.< Tpreset 28.4ºF , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will
operate at low speed.
18
Function and Control
Protection
Protection is the same as that under the cooling mode.
(3) Heating Mode
Working conditions and process of heating
If Tamb. Tpreset +35.6 ºF, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan
will operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention.
If T amb. Tpreset +41 ºF , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after
60- second blow at low speed
If Tpreset +35.6 ºF <T amb.< Tpreset +41ºF, the unit will maintain its original operating status.
Under this mode, the four-way valve is energized and temperature can be set within a range of 61 - 86 ºF. The operating
symbol, the heating symbol and preset temperature are revealed on the display.
Condition and process of defrost
When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, and
one of the following conditions is reached, the unit will enter the defrost mode after 3 minutes.
a.
Toutdoor amb. A ºF, Toutdoor tube W ºF;
b.
AºF Toutdoor amb. <BºF, Toutdoor tube XºF ;
c.
BºF Toutdoor amb. <CºF, Toutdoor tube YºF ;
d.
Toutdoor amb.<CºF, Toutdoor tube Z ºF
At that time, the indoor fan stops and the compressor stops, and after 30 seconds the outer fan will stop, and then after 30
seconds, the four-way valve will stop. After 30 seconds, the compressor is initiated for raising the frequency to defrost frequency.
When the compressor has operated under defrost mode for 7.5 minutes, or Touter tube E, the compressor will be converted to 53Hz
operation. After 30 seconds, the compressor will stop. And after another 30 seconds, the four-way valve will be opened, and after
60 seconds, the compressor and the outer fan will be started, the indoor fan will run under preset cold air prevention conditions,
and H1 will be displayed at temperature display area on the display panel. Defrost frequency is 70Hz.
3.Protection
Cold air prevention
The unit is started under heating mode (the compressor is ON):
In the case of T indoor amb. <75ºF : if T tube 104ºF and the indoor fan is at stop state, the indoor fan will begin to run at low speed with
a time lag of 2 minutes. Within 2 minutes, if T tube>104 ºF, the indoor fan also will run at low speed; and after 1-minute operation at
low speed, the indoor fan will be converted to operation at preset speed. Within 1-minute low speed operation or 2-minute nonoperation, if T tube>108ºF , the fan will run at present speed.
In the case of T indoor amb. 75 ºF : if T tube 108 ºF, the indoor fan will run at low speed, and after one minute, the indoor fan will be
converted to preset speed. Within one-minute low speed operation, if T tube>104 ºF , the indoor fan will be converted to preset speed.
Note: T indoor amb. indicated in
and
refers to, under initially heating mode, the indoor ambient temperature before the
command to start the compressor is performed according to the program, or after the unit is withdrawn from defrost, the
indoor ambient temperature before the defrost symbol is cleared.
Total current up and frequency down protection
If the total current Itotal W, frequency rise will be allowed; if Itotal
will run at reduced frequency; and if Itotal
X, frequency rise will not be allowed; if Itotal
Y, the compressor
Z, the compressor will stop and the outdoor fan will stop with a time lag of 30s.
(4) Fan Mode
Under the mode, the indoor fan will run at preset speed and the compressor, the outdoor fan, the four-way valve and the electric
heater will stop.
Under the mode, temperature can be set within a range of 61 - 86 ºF .
(5) AUTO Mode
Working conditions and process of AUTO mode
Under AUTO mode, standard cooling temperature Tpreset is 77 º F and standard heating temperature Tpreset is 64 ºF .
a. Once energized, if Tamb 68 ºF , the unit will be started under heating mode; if 68ºF < Tamb.< 77ºF, the unit will run under fanmode
and the run indicator will be bright; and if Tamb 77 ºF , the unit will be started under cooling mode.
19
Function and Control
b.Under AUTO mode, if Tamb. Tpreset is detected, the unit will select to run under cooling mode, in which case implicit preset
temperature is 77 ºF ; if Tamb. Tpreset 28.4 ºF, the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and
the indoor fan will run at preset speed; and if Tpreset -( 28.4ºF )< Tamb.< Tpreset , the unit will remain at its original state.
c. Under AUTO mode, if Tamb. Tpreset + 35.6 ºF is detected, the unit will select to run under heating mode, in which case implicit
preset temperature is 64 ºF ; if Tamb. Tpreset +41ºF , the compressor will stop, the outdoor fan will stop with a time lag of 1 minute,
and the indoor fan will run under the mode of residue heat blowing; and if Tpreset +35.2 ºF < Tamb.< Tpreset +41ºF , the unit will remain
atits original state. The cooling-only unit will run under fan mode.
d. Under AUTO mode, if 68 ºF < Tamb.< 77 ºF , the unit will remain at its original state.
Protection
a.
b.
In cooling operation, protection is the same as that under the cooling mode;
In heating operation, protection is the same as that under the heating mode;
c.
When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will
remain unchanged for at least 6 minutes.
(6) Common Protection Functions and Fault Display under COOL, HEAT, DRY and AUTO Modes
Overload protection
T tube: measured temperature of outdoor heat exchanger under cooling mode; and measured temperature of indoor heat exchanger under heating mode.
1) Cooling overload
a. If T tube 126ºF, the unit will return to its original operation state.
b.
c.
If T tube
If T tube
131 ºF , frequency rise is not allowed.
136 ºF , the compressor will run at reduced frequency.
d.
If T tube 144 ºF , the compressor will stop and the indoor fan will run at preset speed.
2) Heating overload
a.
b.
If T tube
If T tube
c.
d.
If T tube
If T tube
126 ºF , the unit will return to its original operation state.
131 ºF , frequency rise is not allowed.
136 ºF , the compressor will run at reduced frequency.
144 ºF , the compressor will stop and the indoor fan will blow residue heat and then stop.
Exhaust temperature protection of compressor
If exhaust temperature
208 ºF , frequency is not allowed to rise.
217 ºF , the compressor will run at reduced frequency.
If exhaust temperature
If exhaust temperature
230 ºF , the compressor will stop.
If exhaust temperature
its operation.
194 ºF and the compressor has stayed at stop for at least 3 minutes, the compressor will resume
Communication fault
If the unit fails to receive correct signals for durative 3 minutes, communication fault can be justified and the whole system will
stop.
Module protection
Under module protection mode, the compressor will stop. When the compressor remains at stop for at least 3 minutes, the
compressor will resume its operation. If module protection occurs six times in succession, the compressor will not be started
again.
Overload protection
If temperature sensed by the overload sensor is over 239 ºF , the compressor will stop and the outdoor fan will stop with a
time lag of 30 seconds. If temperature is below 203 ºF , the overload protection will be relieved .
If voltage on the DC bus is below 150V or over 420V, the compressor will stop and the outdoor fan will stop with a time
lag of 30 seconds. When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least
3 minutes, the compressor will resume its operation.
Faults of temperature sensors
20
Function and Control
Designation of sensors
Indoor ambient temperature
Indoor tube temperature
Outdoor ambient temperature
Outdoor tube temperature
Exhaust
Overload
Faults
The sensor is detected to be open-circuited or short-circuited for
successive 20 seconds
The sensor is detected to be open-circuited or short-circuited for
successive 20 seconds
The sensor is detected to be open-circuited or short-circuited for
successive 30 seconds
The sensor is detected to be open-circuited or short-circuited for
successive 30 seconds, and no detection is performed within 10 minutes
after defrost begins.
After the compressor has operated for 3 minutes, the sensor is detected
to be open-circuited or short-circuited for successive 30 seconds.
After the compressor has operated for 3 minutes, the sensor is detected
to be open-circuited or short-circuited for successive 30 seconds.
4. Other Controls
(1) ON/OFF
Press the remote button ON/OFF: the on-off state will be changed once each time you press the button.
(2) Mode Selection:
Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DRY, FAN, HEAT, AUTO.
(3) Temperature Setting Option Button
Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 1.8 ºF . Regulating
Range: 61~86ºF, the button is useless under the AUTO mode.
(4) Time Switch
You should start and stop the machine according to the setting time by remote control.
(5) SLEEP State Control
a. When the air conditioner is under the mode of COOL, DRY, and the SLEEP mode has been set well, after the SLEEP state
keeps about 1 hour, the pre-setting T will raise 1.8 ºF , and it will raise 1.8 ºF again after 2 hours, so it raise 3.6 ºF in 2 hours,
then it will run on at the setting temperature and wind speed.
b. When the air conditioner is under the mode of HEAT, and the Timer has been set well, after the SLEEP state keeps about 1
hour, the pre-setting T will reduce 1.8 ºF , and it will reduce 1.8 ºF again after 2 hours, so it reduce 3.6 ºF in 2 hours, then it will
run on at the setting temperature and wind speed.
c. The setting temperature keeps the same under the FAN mode and AUTO mode.
(6) Indoor Fan Control
The Indoor Fan can be set as HIGH, MED, LOW by remote control, and the Indoor Fan will be respectively run at high, medium, low
speed. It will also be set as AUTO, and the Indoor Fan is as the followings at the automatic wind speed.
T setting + 3.6, high speed; T setting - 3.6<T ring<T setting + 3.6, medium speed; T ring T setting - 3.6, low speed.
Cooling mode: T ring
Sending wind mode: : T ring > T setting+ 7.2, high speed; T setting +3.6 T ring
T setting + 7.2, medium speed; T ring<T setting +3.6, low
speed. Moisture removal mode: force to be set as the low speed
T setting + 1.8 high speed; T setting +1.8 <T ring<T setting + 9, medium speed; T ring T setting + 3.6, low speed.
Heating mode: T ring
(7) Buzzer Control
The buzzer will send a
sound when the air conditioner is powered up or received the information sent by the remote
control or there is a button input, the single tube cooler doesn
mode.
t receive the remote control ON signal under the mode of heating
(8) Auto button
If the controller is on, it will stop by pressing the button, and if the controller is off, it will be automatic running state by pressing the
button, swing on and light on, and the main unit will run based on the remote control if there is remote control order.
(9) Up-and-Down Swinging Control
When power on, the up-and-down motor will firstly move the air deflector to o counter-clockwise, close the air outlet. After starting
the machine, if you don t set the swinging function, heating mode and auto-heating mode, the up-and-down air deflector will
move to D clockwise; under other modes, the up-and-down air deflector will move to L1. If you set the swinging function when you
start the machine, then the wind blade will swing between L and D. The air deflector has 7 swinging states: Location L, Location
A, Location B, Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D
is the same). The air deflector will be closed at 0 Location, and the swinging is effectual only on condition that setting the swinging
order and the inner fan is running. The indoor fan and compressor may get the power when air deflector is on the default location.
21
Function and Control
Cooling angle
Heating angle
O(0°)
O(0°)
L1
A1
B1
C1
D1
W
L
A
B
C
D
(10) Display
Operation pattern and mode pattern display
All the display patterns will display for a time when the power on, the operation indication pattern will display in red under standby
status. When the machine is start by remote control, the indication pattern will light and display the current operation mode (the
mode light includes: Cooling, heating and dehumidify). If you close the light key, all the display patterns will close.
Double-8 display
According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is
from 61 to 86 ºF ) and indoor ambient temperature. The heating and air supply temperature will display 77 ºF under auto-mode,
the temperature will display 18 under the heating mode, and the temperature will display H1 under the defrosting mode.(If you
set the fahrenheit temperature display, the nixie light will display according to fahrenheit temperature)
(11) Protection function and failure display
E2: Freeze-proofing protection
E4: Exhausting protection
E5: Overcurrent protection
E6: Communication failure
E8: Overload protection
F1: Indoor ambient sensor start and short circuit (continuously measured failure in 20S)
F2: Indoor evaporator sensor start and short circuit (continuously measured failure in 20S)
F3: Outdoor ambient sensor start and short circuit (continuously measured failure in 30S)
F4: Outdoor condenser sensor start and short circuit (continuously measured failure in 30S, and don
minutes after defrosted)
t measure within 10
F5: Outdoor exhausting sensor start and short circuit (continuously measured failure in 30S after the compressor operated 3
minutes)
H3: Overload protection of compressor
H5: Module protection
PH: High-voltage protection
PL: Low-voltage protection
P1: Nominal cooling and heating
P3: Medium cooling and heating
P2: Maximum cooling and heating
P0: Minimum cooling and heating
(12) Drying Function
You may start or stop the drying function under the modes of cooling and dehumidify at the starting status (The modes of
automatism, heating and air supply do not have drying function). When you start the drying function, after stop the machine by
pressing the switch button, you should keep running the inner fans for 10 minutes under low air damper (The swing will operate
as the former status within 10 minutes, and other load is stopped), then stop the entire machine; When you stop the drying
function, press the switch button will stop the machine directly. When you start the drying function, operating the drying button will
stop the inner fans and close the guide louver.
(13) Memory function when interrupting the power supply
Memory content: mode, swing function, light, set temperature and wind speed. After interrupted the power supply, the machine
will start when recovering the power according to the memory content automatically. If the last remote control command has not
set the timed function, the system will remember the last remote control command and operate according it. If the last remote
control command has set timed function and the power supply is interrupted before the timed time, the system will remember the
timed function of the last remote control command, the timed time will recounted form power on. If the last remote control
command has set timed function, the time is out and the system is start or stop according to the set time when the power supply
is interrupted, the system will remember the operation status before the power supply was interrupted, and do not carry out timed
action; The timed clock will not remembered.
22
Installation Manual
7. Installation Manual
7.1 Notices for Installation
7.1.1 Caution
1.The unit must only be installed by authorized service center according to local or government regulations and in compliance with
this manual .
2.Before installating, please contact with local authorized maintenance center. If the unit is not installed by the authorized service
center, the malfunction may not be solved due to discommodious contacts.
3.When removing the unit to the other place, please firstly contact with the local authorized service center.
4.Warning:Before obtaining access to terminals,all supply circuits must be disconnected.
5.For appliances with type Y attachment,the instructions shall contain the substance of the following.If the supply cord is damaged,
it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
6.The appliance must be positioned so that the plug is accessible.
7.The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.
8. The instructions shall state the substance of the following:This appliance is not intended for use by persons(including children)
with reduced physical,sensory or mental capabilities,or lack of experience and knowledge,unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
7.1.2 Installation Site Instructions
Proper installation site is vital for correct and efficient operation of the unit. Avoid the following sites where:
strong heat sources, vapours, flammable gas or volatile liquids are emitted.
high-frequency electro-magnetic waves are generated by radio equipment,welders and medical equipment.
salt-laden air prevails (such as close to coastal areas).
the air is contaminated with industrial vapours and oils.
the air contains sulphures gas such as in hot spring zones.
corrosion or poor air quality exists.
7.1.3 Installation Site of Indoor Unit
1.The air inlet and outlet should be away from the obstructions. Ensure the air can be blown through the whole room.
2.Select a site where the condensing water can be easily drained out, and where it is easily connected for outdoor unit.
3.Select a place where it is out of reach of children.
4.Select the place where the wall is strong enough to withstand the full weight and vibration of the unit.
5.Be sure to leave enough space to allow access for routine maintenance. The installation site should be 250cm or more above the
floor.
6.Select a place about 1m or more away from TV set or any other electric appliance.
7.Select a place where the filter can be easily taken out.
8.Make sure that the indoor unit is installed in accordance with installation dimension instructions.
9.Do not use the unit in the laundry or by swimming pool etc.
7.1.4 Installation Site of Outdoor Unit
1.Select a site where noise and outflow air emitted by unit will not annoy neighbors.
2.Select a site where there is sufficient ventilation.
3.Select a site where there is no obstruction blocking the inlet and outlet.
4.The site should be able to withstand the full weight and vibration.
5.Select a dry place, but do not expose the unit to direct sunlight or strong wind.
6.Make sure that the outdoor unit is installed in accordance with the installation instructions,and is convenient for maintenance and
repair.
7.The height difference between indoor and outdoor units is within 10m, and the length of the connecting tubing does not exceed 15
(09k)or20(12K)m.
8.Select a place where it is out of reach of children.
9.Select a place which will not block pedestrian passage and influence the city appearance.
23
Installation Manual
7.1.5 Safety Precautions for Electric Appliances
1.A dedicated power supply circuit should be used in accordance with local electrical safety regulations.
2.Don’t drag the power cord emphatically.
3.The unit should be reliably earthed and connected to the special earth device by the professionals.
4.The air switch must have the functions of magnetic tripping and heat tripping to prevent short circuit and overload.
5.The minimum distance between the unit and combustive surface is 1.5m.
6.The appliance shall be installed in accordance with national wiring regulations.
7.An all-pole disconnection switch with a contact separation of at least 3mm in all poles should be connected in fixed wiring.
Note:
Make sure the live wire, neutral wire and earth wire in the family power socket are properlly connected. There should be
reliable circuit in the diagram.
Inadequate or incorrect electrical connections may cause electric shock or fire.
7.1.6 Earthing Requirements
1. Air conditioner is type I electric appliance. Please ensure the the unit is reliably earthed.
2. The yellow-green wire in air conditioner is the earthing wire which can not be used for other purposes. Improper earthing may
cause electric shock.
3. The earth resistance should accord to the national criterion.
4. The user’s power must have reliable earthing terminal. Please don’t connect the earthing wire with the following:
Water pipe
Gas pipe
Contamination pipe
Other place that professional personnel consider is unreliable
5. The model and rating values for fuses accord with the silk print on fuse cover or related PCB.
24
Installation Manual
7.2 Installation Drawing
Space to the ceiling
5.9 in.
Space to the wall
Above
5.9 in. Above
5.9 in. Above
Space to the wall
118.1 in.
Above
Air outlet side
ƽ
The dimensions of the space necessary for correct
installation of the appliance include the minimum
permissible distances to adjacent structures
Space to the obstruction
19.7 in.
Above
Air inlet side
11.8 in.
Above
11.8 in. Above
Space to the wall
Space to the wall
19.7 in. Above
78.7 in.
Above
Air outlet side
This is just the schematic plan, please refer to the actual product.
25
Installation Manual
7.3 Install Indoor Unit
7.3.1 Installation of Mounting Plate
1.Make the mounting plate completely level . As the water tray’s oulet of the indoor unit is two-way type, the indoor unit during
installation should slightly slant to watert tray’s outlet for smooth drainage of condensing water.
2.Fix the mounting plate on the wall with screws.(Where is pre-covered with plastic granula)
3.Be sure that the mounting plate has been fixed firmly enough to withstand the weight of an adult of 132.3 lb.; further more,
the weight should be evenly shared by each screw.
Wall
Space
to the
wall
5.9 in.
above
Mark on the middle of it
Gradienter
Right
Left
Φ 2.2 in.
Φ 2.2 in.
(Rear piping hole)
Wall
Space
to the
wall
5.9 in.
above
Wall
Space
to the
wall
5.9 in.
above
09K Unit
Mark on the middle of it
(Rear piping hole)
Gradienter
Right
Left
Φ2.2 in.
(Rear piping hole)
Wall
Space
to the
wall
5.9 in.
above
Φ 2.2 in.
12K Unit
(Rear piping hole)
Fig.5
7.3.2 Drill Piping Hole
5.9) on the wall slightly downward to the outdoor side.
1.Slant the piping hole (
2.Insert the piping-hole sleeve into the hole to prevent the connection piping and
Indoor
Wall pipe
Outdoor
Seal pad
wiring from being damaged when passing through the hole.
Ø2.2
7.3.3 Installation of Drain Hose
1.Connect the drain hose to the outlet pipe of the indoor unit.Bind the joint with
rubber belt.
2.Put the drain hose into insulating tube.
outlet pipe of
indoor unit
rubber belt
3.Wrap the insulating tube with wide rubber belt to prevent the shift of insulating
tube. Slant the drain hose downward slightly for smooth drainage of condensing
water.
outlet pipe of
indoor unit
drain hose
outlet pipe of
indoor unit
drain hose
rubber belt insulating tube
rubber belt
outlet pipe of
indoor unit
Note: The insulating tube should be connected reliably with the sleeve outside the outlet pipe. The drain hose should be slanted downward slightly,
without distortion, bulge or fluctuation. Do not put the outlet in the water.
connected
bulge
insulating tube
distortion
Flooded
26
Installation Manual
7.3.4 Connecting Indoor and Outdoor Electric Wires
1.Open the front panel.
2.Remove the wiring cover.
3.Make the power connection cord and signal control wire (only for heat
pump unit ) pass through.
Heat PumpType
N(1) 2 3
4.Reinstall the cord anchorage and wiring cover.
5.Reinstall the front panel.the hole at the back of indoor unit.
brown
yellow- green
NOTE:
All wires between indoor and outdoor units must be connected by the qualified electric contractor.
Electric wires must be connected correctly. Improper connection may cause malfunction.
Tighten the terminal screws tightly.
After tightening the screws, pull the wire sligltly to confirm whether it’s firm or not.
Make sure that the electric connections are earthed properly to prevent electric shock.
Make sure that the electric connections are earthed properly to prevent electric shock.
properly. Poor installation may cause fire or electric shock.
Gas side pipe
External connection
electric wire
Liquid side piping
7.3.5 Installation of Indoor Unit
The piping can be output from right, right rear, left or left rear.
1.When routing the piping and wiring from the left or right side
of indoor unit, cut off the tailings from the chassis when
Gas side piping
insulation
Tailing 2
Tailing 1
necessary(As shown in Fig.7)
Cut off the tailings 1 when routing the wiring only;
Finally wrap it
Water drainage pipe
with tape
Fig.7
Cut off the tailings 1 and tailings 2 when routing
both the wiring and piping.
2.Take out the piping from body case, wrap the piping,power
cords, drain hose with the tape and then make hem pass
through the piping hole. (As shown in Fig.8)
3.Hang the mounting slots of the indoor unit on the upper hooks
Left
েৢ
Left rear
Right
of the mounting plate and check if it is firm enough.(As shown
in Fig.9)
Fig.8
Right rear
Fixing hook
4.The installation site should be 98.4 in. or more above
the floor.
Mounting
plate
Mounting
plate
Fig.9
7.3.6 Install the Conduit assy
1) Pass the connection wires of indoor and outdoor units
throught the wire-passing pipe.
2) Fix the wire-passing pipe at the chassis with 2 screws.
Conduit assy consists of conduit, conduit holder and
conduit connector.
Conduit connector
The length of the wire-passing pipe can be calculated according tothe length of connection wire
Conduit holder
27
Liquid side
Piping insulation
Conduit
Installation Manual
7.3.7 Installation of Connection Pipe
1.Align the center of the piping flare with the related valve.
2.Screw in the flare nut by hand and then tighten the
nut with spanner and torque wrench by referring to the
following:
Indoor unit piping
Tube diameter
Tightening torque,approximate(N·m)
Ɏ6.35(1/4”)
14̚18N·m(140-180kgf.cm)
Ɏ9.52(3/8”)
34̚42N·m(340-420kgf.cm)
Ɏ12.7(1/2”)
49̚61N·m(490-610kgf.cm)
Ɏ15.88(5/8”)
68̚82N·m(680-820kgf.cm)
Taper nut Piping
Spanner
Torque
wrench
NOTE: Connect the connection pipe to indoor unit at first and then to outdoor unit. Handle piping
bending with care. Do not damage the connection pipe. Ensure that the joint nut
is tightened firmly, otherwise, it may cause leakage.
GWH09AB-A3DNA1B/O
GWH12AB-A3DNA1B/O
7.4 Install Outdoor Unit
GWH12AB-D3DNA1B/O
Handle
N(1)
7.4.1 Electric Wiring
1.Remove the handle from the outdoor unit.
blue
2
3
L
N(1)
N
blue
L
black
N
2
3.Connect the power supply cord and the connection cord to terminal.
4.Fasten the power supply cord and connection cord with cord clamp.
5. Install the handle.
power supply cord
L2
L2
brown
cord clamp
cord clamp
connection cord
L1
L1
black
brown
2. Fasten the power supply cord and the connection cord to the retaining
plate using the lock nut.(open the knock out holes if necessary)
3
connection cord
power supply cord
lock nut
The screws are packed with the terminal board.
Finish
NOTE:
Incorrect wiring may cause malfunction of spare part.
conduit
After the wire has been fixed, ensure there is free space between the connection and fixing places on the lead wire.
Schematic diagram being reference only, please refer to real product for authentic information.
28
Installation Manual
7.4.2 Air Purging and Leakage Test
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Deep Vacuum Method
The deep vacuum method requires a vacuum pump capable of
pulling a vacuum of 500 microns and a vacuum gage capable of
accurately measuring this vacuum depth. The deep vacuum method
is the most positive way of assuring a system is free of air and
liquid water. (See Fig. 12)
Never use the system compressor as a vacuum pump.
MICRONS
Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate
triple evacuation method may be used if the procedure outlined
below is followed. Always break a vacuum with dry nitrogen.
SYSTEM VACUUM AND CHARGE
Using Vacuum Pump
1. Completely tighten flare nuts A, B, C, D, connect manifold
gage charge hose to a charge port of the low side service
valve. (See Fig. 10.)
2. Connect charge hose to vacuum pump.
3. Fully open the low side of manifold gage. (See Fig.11)
4. Start vacuum pump
5. Evacuate using either deep vacuum or triple evacuation
method.
6. After evacuation is complete, fully close the low side of
manifold gage and stop operation of vacuum pump.
7. The factory charge contained in the outdoor unit is good for
up to 25 ft. (8 m) of line length. For refrigerant lines longer
than 25 ft (8 m), add 0.1 oz. per foot of extra piping up to
the maximum allowable length.
8. Disconnect charge hose from charge connection of the low
side service valve.
9. Fully open service valves B and A.
10. Securely tighten caps of service valves.
Refrigerant
Outdoor Unit
A
Low Side
B
High Side
Indoor Unit
C
D
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
LEAK IN
SYSTEM
VACUUM TIGHT
TOO WET
TIGHT
DRY SYSTEM
0
1
3 4
5
MINUTES
6
7
A95424
Fig.12 ---
Deep Vacuum Graph
Triple Evacuation Method
The triple evacuation method should only be used when vacuum
pump is only capable of pumping down to 28 in. of mercury
vacuum and system does not contain any liquid water.
Refer to Fig. 18 and proceed as follows:
1. Pump system down to 28 in. of mercury and allow pump to
continue operating for an additional 15 minutes.
2. Close service valves and shut off vacuum pump.
3. Connect a nitrogen cylinder and regulator to system and
open until system pressure is 2 psig.
4. Close service valve and allow system to stand for 1 hr. During this time, dry nitrogen will be able to diffuse throughout
the system absorbing moisture.
5. Repeat this procedure as indicated in Fig.13.
System will
then be free of any contaminants and water vapor.
EVACUATE
Service Valve
A07360
Fig.10
2
BREAK VACUUM WITH DRY NITROGEN
--- Service Valve
WAIT
Manifold Gage
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
500 microns
Low side valve
Charge hose
WAIT
High side valve
EVACUATE
Charge hose
CHECK FOR TIGHT, DRY SYSTEM
(IF IT HOLDS DEEP VACUUM)
Vacuum pump
RELEASE CHARGE INTO SYSTEM
Low side valve
A95425
Fig.13 ---
A07361
Fig.11 ---
Manifold
Triple Evacuation Method
Final Tubing Check
IMPORTANT: Check to be certain factory tubing on both indoor
and outdoor unit has not shifted during shipment. Ensure tubes are
not rubbing against each other or any sheet metal. Pay close
attention to feeder tubes, making sure wire ties on feeder tubes are
secure and tight.
29
Installation Manual
7.4.3 Outdoor Condensation Drainage (only for Heat pump unit )
During heating operation, the condensing water and defrosting
water should be drained out reliably through the drain hose.
Install the outdoor drain connector in a 25 hole on the
the base plate and attach the drain hose to the connector,
so that the waste water formed in the outdoor unit can be
drained out .The hole diameter 25 must be plugged.
Whether to plug other holes will be determined by the dealers
according to actual conditions.
Chasis
Outdoor drain connector
7.5 Check after Installation and Operation Test
7.5.1 Check after Installation
Items to be checked
Possible malfunction
Has it been fixed firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling(heating)
capacity
Is heat insulation sufficient?
It may cause condensation and dripping.
Is water drainage satisfactory?
It may cause condensation and dripping.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
Is the electric wiring and piping
connection installed correctly and securely?
Has the unit been connected to a secure
earth connection?
It may cause electric malfunction
or damage the product.
It may cause electric malfunction
or damage the part.
It may cause electrical leakage.
Is the power cord specified?
It may cause electric malfunction
or damage the part.
Are the inlet and outlet openings blocked?
It may cause insufficient cooling(heating)
capacity.
Is the length of connection pipes
and refrigerant capacity been recorded?
The refrigerant capacity is not accurate.
7.5.2 Operation Test
1.Before Operation Test
(1)Do not switch on power before installation is finished completely.
(2)Electric wiring must be connected correctly and securely.
(3)Cut-off valves of the connection pipes should be opened.
(4)All the impurities such as scraps and thrums must be cleared from the unit.
2.Operation Test Method
(1)Switch on power and press “ON/OFF” button on the wireless remote controllerto start the operation.
(2)Press MODE button to select the COOL, HEAT (Cooling only unit is not available), FAN to check whether the operation is
normal or not.
30
8([SORGHG9LHZVDQG3DUWV/LVW
8,QGRRU8QLW
31
Exploded Views and Parts List
NO.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Description
Product Code
Wall-Mounting Frame
Filter
Rear Case assy
Evaporator Assy
Cross Flow Fan
O-Gasket sub-assy of Bearing
Drainage Pipe
Water Tray Assy
Louver
Louver
Swing Linkage
Front grill
Guide Louver
Front Case
Screw Cover
Filter
Front Panel Assy
Decorative Strip
Receiver Board D5005
Display Box
Display Box Cover2
Remote Controller
Electric Box Cover
Step Motor
Motor Clamp
Motor
4-bit Terminal Board
Electric Box Cover1
Electric Box Assy
Main Board
Ambient Temperature Sensor
Tube Sensor (20K black)
Press Plate of Connecting Pipe
Part Code
GWH09AB-A3DNA1B/I
CB115N0554_K54715
01252008
111220081
2220208402
01002089
10352023
76512051
0523001401
20182146
10512099
10512097
10582450
01472011
1051210205P
20002760
24252019P
11122059
2001206703
20192203D
30545052
none
20122058
305100502
20122074P
15012086
26112132
1501306801
42011233
20122103
2010256214
30138202
390000451
390000591
26112124
The above data are subject to be changed without notice
32
Qty
1
2
1
1
1
1
1
1
8
2
1
1
1
1
3
2
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
33
Exploded Views and Parts List
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Description
Product Code
Wall-Mounting Frame
Rear Case assy
Evaporator Assy
Cross Flow Fan
O-Gasket sub-assy of Bearing
Drainage Pipe
Water Tray Assy
Louver
Louver
Swing Linkage
Front grill
Guide Louver
Front Case
Screw Cover
Filter
Front Panel Assy
Decorative Strip
Receiver Board D5005
Display Box
Display Box Cover2
Remote Controller
Electric Box Cover
Step Motor
Motor Clamp
Motor
4-bit Terminal Board
Electric Box Cover1
Electric Box Assy
Main Board
Ambient Temperature Sensor
Tube Sensor (20K black)
Press Plate of Connecting Pipe
Part Code
GWH12AB-A3DNA1B/I
CB115N0574_K54715
01252008
2220208402
0100252402
10352023
76512051
0523001401
20182146
10512099
10512097
10582450
01472011
1051210205P
20002760
24252019P
11122059
2001206703
20192203D
30545052
none
20122058
305100502
20122074P
15012086
26112132
1501306801
42011233
20122103
2010256214
30138202
390000451
390000591
26112124
The above data are subject to be changed without notice
34
Qty
1
1
1
1
1
1
1
8
2
1
1
1
1
3
2
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
35
Exploded Views and Parts List
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Description
Product Code
Wall-Mounting Frame
Rear Case assy
Evaporator Assy
Cross Flow Fan
O-Gasket sub-assy of Bearing
Drainage Pipe
Water Tray Assy
Louver
Louver
Swing Linkage
Front grill
Guide Louver
Front Case
Screw Cover
Filter
Front Panel Assy
Decorative Strip
Receiver Board D5005
Display box
Display Box Cover2
Remote Controller
Electric Box Cover
Step Motor
Motor Clamp
Motor FN10D-ZL
4-bit Terminal Board
Electric Box Cover1
Electric Box Assy
Main Board
Ambient Temperature Sensor
Tube Sensor (20K black)
Press Plate of Connecting Pipe
Crank
Shield cover of Electric Box sub-assy
Filter
Louver Clamp
Evaporator Support
Axile Bush
Axile Bush (guide louver)
Jumper Cap
Water Tray Glue Plug
Part Code
GWH12AB-D3DNA1B/I
CB115N0388_K54715
01252008
2220208402
0100252402
10352023
76512051
0523001401
20182146
10512099
10512097
10582450
01472011
1051210205P
20002760
24252019P
11122059
2001206703
20192203D
30545052
20122070
20122058
305100502
20122074P
15012086
26112132
15013068
42011233
20122103
2010256211
30138201
390000451
390000591
26112124
10582070
01592073
111220081
26112158
24212076
10542704
10542008
4202300105
76712012
The above data are subject to be changed without notice
36
Qty
1
1
1
1
1
1
1
8
2
1
1
1
1
3
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
5
1
1
1
1
1
82XWGRRU8QLW
37
Exploded Views and Parts List
Part Code
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Description
Product Code
Mesh Enclosure
Cabinet
Underpan Sub-Assy
Compressor Gasket
Drainage Connecter
Compressor C-6RZ110H1A
Overload Protector
4-way Valve Accessary
Temperature Sensor for Discharge Gas
4-way Valve
4-way Valve Assy
Right Side Plate Assy
Cut-off Valve
Valve Support
Cut-off Valve (1/4)
Cable Cross Plate Assy
Wire cover
Magnet Coil
Tube Sensor (20K black)
Filter
Electric Expansion Valve Sub-Assy
Rear Grill
Condenser Assy
Sensor
Clapboard Sub-Assy
Top Cover Plate
Motor suport spot welding sub-assy
Motor FW30G-ZL
Electric box cover sub-assy
Electric Box Assy
Axial-flow Fan
Mian board
GWH09AB-A3DNA1B/O
Qty
CB115W0551_K54715
01473012
0143304601P
01203524
76815203
06123401
00205212
00180002
4300040021
39000016
430004032
03123315
013030712
07100135
01713041
07100003
02123015
01413069
4300876701
390001921
07220019
07133554
01473014
01113298_K54715
3900020801
01233034
01253443
01703007
15013069
0260309601
0140398685
10333502
30138211
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
The above data are subject to be changed without notice
38
39
Exploded Views and Parts List
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Part Code
GWH12AB-A3DNA1B/O
Product Code
CB115W0571_K54715
Front Grill
01473012
Front Panel
0153500201
Chassis Sub-assy
01203524
Compressor Gasket
76815203
Drainage Connecter
06123401
Overload Protector
00180002
Compressor and fittings
00205212
Discharge Sensor
39000016
Magnet Coil
4300040021
4-Way Valve
430004032
4-Way Valve Assy
03123316
Right Side Plate
0130508701P
Valve
07100003
Valve Support
01713041
Cut off Valve
07130838
Cable Cross Plate Sub-assy
02123015
Tube Sensor
390001921
Strainer
07220019
Electric Expansion Valve S
07133458
Magnet Coil
4300876701
Rear Grill
01475014
Condenser Assy
01113520_K54715
Clapboard Sub-Assy
01233090
Temperature Sensor
3900020801
Top Cover Plate
01253443
Motor Suport Spot Weldin
0170301002
Fan Motor
15013069
Axial Flow Fan
10333502
Electric Box Assy
0140398685
Electric Box Cover Sub-As
0260309601
Main Board
30138211
Description
The above data are subject to be changed without notice
40
Qty
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
41
Exploded Views and Parts List
NO.
Part Code
GWH12AB-D3DNA1B/O
Product Code
CB115W0382_K54715
1 Front Grill
01473012
2 Front Panel
0153500201
3 Chassis Sub-assy
01203524
4 Compressor Gasket
76815203
5 Drainage Connecter
06123401
6 Overload Protector
00180002
7 Compressor and fittings
00205212
8 Discharge sensor
39000016
9 Magnet Coil
4300040036
10 4-way Valve
430004032
11 4-way Valve Assy
03123207
12 Right Side Plate
0130508701P
13 Valve
07100003
14 Valve Support
01713041
15 Cut off Valve
07130838
16 Cable Cross Plate sub-assy
02123015
17 Tube Sensor
390001921
18 Strainer
07220019
19 Electric Expansion Valve S
07133069
20 Magnet Coil
4300876701
21 Rear Grill
01475014
22 Condenser Assy
01113321_K54715
23 Clapboard Sub-Assy
01233090
24 Temperature Sensor
3900020801
25 Top Cover Plate
01253443
26 Motor suport spot welding
0170301002
27 Fan Motor
15013069
28 Reactor
43130178
29 Electric Box Cover Sub-As
0260309601
30 Electric Box Assy
0140398683
31 Axial Flow Fan
10333502
Main Board
30138209
Description
The above data are subject to be changed without notice
42
Qty
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Troubleshooting
9. Troubleshooting
9.1 Malfunction Analysis
Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the
unit will display C5
The breaker trips at once when it
is set to "ON".
Trip of breaker
or blow of fuse
The circuit or the part of the air conditioner has
malfunction. They heat and break the insulation
and lead to short circuit or creepage. Measure
the insulation resistance or eliminate the malfunction one by one. If the breaker itself has
malfunction, then replace the breaker.
The breaker trips in few
minutes when it is set
to "ON"
Check power supply circuit.
Air conditioner can not start up
No power
The air conditioner does not react
after it is powered ( after the plug
is inserted,
the buzzer does
not sound and
the remote startup has
no response)
The remote controller does not
receive signals
(after it is
powered, the
buzzer will
sound, unless it
has malfunction)
Measure insulation resistance
to ground to see if there is any
leakage.
Power plug is not well plugged in
and poor con-nection
Check if the plug is properly
plugged in and make the loose
contact firm.
Fuse of controller burnt out
Change controller fuse
The transformer connection is loose or
has bad contact or the transformer
has malfunction
Fasten the wiring; measure the
output voltage of the transformer, if
it is incorrect, change the
transformer
Controller is broken
Check remote controller
Remote controller is short of power
Change batteries
Remote controller malfunction
First, press the manual switch button
AUTO, if there is no response,check
based on the above methods. If it runs
normally after pressing the button,
check again whether the installation
position and the connection wire
of the reception head is correct. If it is
correct,then replace the receiver or the
remote controller.
Receiver loose or poor connection
Receiver is broken
Check the voltage. If it is lower than 10£¥ of the
rated voltage, check the cause, improve the power
supply condition and add the stabilized voltage
power supply.
Power voltage is too low
43
Troubleshooting
Improper set of temperature
Adjust set temperature
If cooling (heating) load is
proper
Check the forecasted load of cooling (heating)
The refrigerant has leakage
or is insufficient
Check and fill the leakage, then
vacuumize it and supplement the
refrigerant as required
Leakage between the high presMalfunction of
refrigerant
flow
sure and the low pressure inside the compressor
Malfunction of four-way valve
Poor COOL(HEAT) operation
Local block of capillary
Blockage of cooling system
Heat insulation for the connection
pipes of the indoor unit and the outdoor unit is bad.
Replace the compressor
Replace the four-way valve
Replace the capillary
Judge whether the system is blocked
by observing the condensation of
evaporator and the pressure value of
the high pressure manometer and
take measuresto deal with the
system.
Make sure that heat insulation for the thick and thin pipes
is good. Heat insulation must also be provided for the
joint andthe exposed part of the copper pipe .
Block of outdoor heat exchanger
Clean the dust accumulated on the
surface of the heat exchanger.
Air filter were blocked
Clean the filter
Fan speed was set too slow
Air circulation
is insufficient
Fan rotation speed becomes
low
The installation position of
the outdoor unit is not
appropriate.
The outdoor temperature is too high.
The air tightness is not enough. People
come in and out too frequently. There
are heating devices indoors.
To set the fan speed to high or
middle speed
Capacitor
damage
Replace the capacitor
Motor
damage
Replace the motor
Good ventilation must be provided for the
installation position of the outdoor unit.
Properly install the rainproof plate or the sunproof
plate. If the maximum cool air still can not meet the
requirement, it is suggested to replace the air
conditioner.
Keep certain air tightness indoors, try not to use
electricalappliance with large quantity of heat
44
Troubleshooting
The indoor fan motor is burned or breaks
or has the heat protector malfunction.
The fan does not
run when it is set
to supply air.
In the cooling and
heating mode, the
compressor runs,
but the outdoor
fan does not run.
When cooling or
heating, outdoor
fanruns,compressor doesn't run.
The built-in heat protector of the motor
breaks frequently because the motor is
abnormal.
Replace the fan motor
Wrong connection
Make the correction connection based on the
circuit drawing.
The fan capacitor has open circuit or is
damaged.
Replace the fan capacitor of the same type and
same specification.
The outdoor fan motor is damaged.
Replace the fan motor
Wrong connection
Make the correct connection based on the
circuit drawing.
The outdoor fan capacitor is damaged.
Replace the fan capacitor
M al f uncti on of compressor
Repl ace the compressor
Breakage of running capacitor of
compressor
Replace the capacitor
The voltage is too low or too high.
Manostat is recommended.
Wrong wire connection
Connect the circuit diagram correctly
The protector itself has malfunction.
The compressor is
too hot and leads
to the action of
the protector.
Replace the fan motor or the defective part.
Use the multimeter to check whether the contact of
the compressor is on when it is not overheated. If it
is not on, then replace the protector
The refrigerant is not enough or is too
much.
Adjust the volume of the refrigerant
The capillary is blocked and the temperature rises.
Replace the capillary
The compressor does not run smoothly or
is stuck. The air discharge valve is
damaged
Replace the compressor
The protector itself has malfunction.
Replace the protector
The torque of the swing motor is not
enough
The swing fan does
not run.
First, check whether the connection is wrong.
If no, replace the parts
wrong connection
The controller is damaged(IC2003 is
damaged, the swing relay can not close,
etc )
45
Troubleshooting
Controller malfunction
( I C 2 0 0 3 b r o k e n , creepage of
parallel capacitor of relay loop,
relay is broken etc.)
In cool, heat
mode,the outdoor unit and compressor
will not run.
Wire loose or wrong connection
Change controller
Correctly wire according to the drawing
Improper setting of temperature
Adjust setting temp.
Drainage pipe blocked or broken
Change drainage pipe
Wrap of refrigerant pipe joint is not close
Re-wrap and make it tight.
Water leakage
enough.
Fan of indoor unit contacts other parts
Abnormal sound
and shake
Adjust fan location.
Foreign object in indoor unit
Take out the foreign object.
Compressor shakes too much.
Adjust support washer of compressor, and
tighten loosen screws.
Touch of pipeline of outdoor unit
Separate the touching pipeline.
Touch of inner plates
1. Tighten connect screw.
2. Stick absorbing clay between plates.
Louver of outdoor unit touched outer
case.
Adjust location of louver.
Abnormal sound inside compressor
Change compressor
46
Troubleshooting
9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement
47
Troubleshooting
If malfunction occurs,corresponding code will display and the unit will resume normal until protection or
malfunction disappears.
Yellow indicator blinks for once
Compressor stars (normal)
Defrosting (normal display of indoor unit)
Yellow indicator blinks for twice
Yellow indicator blinks for 3 times
Anti-freezing protection (normal
display of indoor unit)
Yellow indicator blinks for 4 times
IPM protection
Yellow indicator blinks for 5 times
Overcurrent protection
Yellow indicator blinks for 6 times
Overload protection
Yellow indicator blinks for 7 times
Exhaust protection
Yellow indicator blinks for 8 times
Overlod protection of compresoor
Indicator display
of outdoor unit
Cooling (dehumidify) or heating current
dropped frequency current.
Red indicator blinks for once
Red indicator blinks for twice
r
Exhaust
temp.
Red indicator blinksfor 3 times
Tube temp.
Red indicator blinks for 4 times
T tube-in
Red indicator blinks for 5 times
Outdoor condenser temp. sensor mal.
dropped frequency temp.
dropped frequency temp.
dropped frequency temp.
Outdoor ambient temp. sensor mal.
Red indicator for 6 times
Red indicator blinks for 7 times
Outdoor exhaust temp. sensor mal.
Red indicator blinks for 8 times
Starting at temp. does not reach
Communication is abnormal
Green indicator does not blink
48
Troubleshooting
Analysis or processing of some of the malfunction display:
1. Compressor discharge protection
Possible reasons: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser;
the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage
inside four-way valve causes incorrect operation; malfunction of compressor; malfunction of protection relay;
malfunction of discharge sensor; outdoor temperature too high.
Processing method: refer to the malfunction analysis in the above section.
2.
3.
4.
5.
6.
Low voltage overcurrent protection
Possi ble reason: Sudden drop of supply voltage.
Co mmunic ation malfun ction
Processin g method: Check if communic ation s ignal cable is c onnected reliably.
Senso r open or shor t circuit
Processin g meth od: Check whether s ensor is normal, c onnected with the corre sponding po sition on th e
controller and if damage of lead wire is found.
Compressor over load protection
Possi ble rea sons: insufficient or too much refrigrant; b lockage of capillary an d increas e of suct ion temp.;
improp er running of compressor, burning in or stuck of bea ring, damage of discharge valve;
malfunc tion of pro tector.
Processi ng method: adjust refrige rant amount; replace the capillary; rep lace the compressor; use
univers al meter to check if the cont acto r of compress or is fine when it is not overh eated , if not replace
the prote ctor.
Syste m malfun ction
i.e.overloadprotection.Whentubetemperature(Check thetemperatureof outdoor heat exchanger
when cooling and check the temperatur e of indoor heat exchanger when heating) is too high,
protectionwill beactivated.
Possi ble rea sons: Outdoor tempera ture is too high when cooling; insufficient outdoor air circulation;
refrigerant flow malfunction.
please refer to the malfunction analysis in the previous section for handling method .
7. IPM module protection
Processing method:Once the module malfunction happens,if it persists for a long time and can not be self- canceled,
cut off the power and turn off the unit,and then re-energize the unit again after about 10 min.After repeating the
procedure for sever times, if the malfunction still exists,replace the module.
49
Troubleshooting
9.3 How to Check simply the main part
(1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel)
Main Check Points:
Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.
If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged?
Fault diagnosis process:
Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
Y
Fault with the voltage
testing circuit on
control panel AP1
Replace the control
panel AP1
N
Measure the AC voltage between
terminalL and N on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
N
Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC
power on and
restart the unit
If the fault is
eliminated?
Y
Y
or
Shut down the power and wait 20nutes;
mi
use DC voltmeter to measure the voltage
on the two ends of capacitor (test3), until
the voltage is lower than 20V
N
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor Lis normal?
N
Connect the reactor
Laccording to Electrical Wiring Diagram correctly
Re-energize and
turn on the unit
Y
Replace the control
panel AP1
N
End
50
If the fault is
eliminated?
Y
Troubleshooting
(2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel)
Main check points:
If the connection between control panel AP1 and compressor COMP is secure? If loose? If the connection is in correct order?
If the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and
N on the wiring board XT)
If the compressor coil resistance is normal? If the insulation of compressor coil against the copper tube is in good condition?
If the working load of the machine are too high? If the radiation is good?
If the charge volume of refrigerant is correct?
Fault diagnosis process:
Energize and
switch on
IPM protection
occurs after the
machine has run for
a period of time?
Y
Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)
If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?
N
Check the supply
voltage and
restore it to
210VAC~250VAC
Y
Restart the unit. Before
protection occurs,
use DC voltmeter to
measure the voltage
between the two
ends of electrolytic
capacitor on control
panel AP1 (test3)
Voltage between
the two ends of celectrolytic
capacitor (test3) is
higher than
250V
Y
Please confirm:
1. If the indoor and
outdoor heat
exchangers are
dirty? If they are
obstructed by other
objects which affect
the heat exchange
of indoor and
outdoor unit.
2. If the indoor and
outdoor fans are
working normally?
3. If the environment
temperature is too
high, resulting in
that the system
pressure is too high
and exceeds the
permissible range?
4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?
5. Other conditions
resulting in that the
system pressure
becomes too high.
The connection
of capacitor C2
is loose.
N
If capacitor
C2 is failed?
Replace the capacitor
C2. Then, energize
and start the unit.
Y
Replace the
control panel AP1
N
If there is any
abnormality
described above?
Y
Y
Replace the
control panel AP1
Connect the control panel
AP1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.
If the
resistance is
normal?
If the unit can
work
normally?
Replace the
compressor
COMP
N
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
51
N
If the unit can
work normallv?
If the unit can
work normally?
Y
Y
N
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
N
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage
between the two ends of
capacitor C2, until the
voltage is lower than 20V
Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.
N
Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the
compressor resistance on
Service Manual.
Y
N
Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.
Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.
If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?
If the unit can
work
normally?
N
If the unit can
work normally?
N
Y
Y
Troubleshooting
(3)High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit)
Mainly detect:
Is outdoor ambient temperature in normal range?
Are the outdoor and indoor fans operating normally?
Is the heat dissipation environment inside and outside the unit is good?
Fault diagnosis process:
Overheat and high
temperature protection
Is outdoor ambient temperature higher than 53?
Y
Normal protection, please operate
it after the outdoor ambient temperature is normalized.
N
20 minutes after the complete
unit is powered off.
Is heat dissipation of the indoor unit
and outdoor unit abnormal?
Y
Improve the heat
dissipation environment of the unit
N
Does the outdoor fan work normally?
N
1. Check if the fan terminal OFAN
is connected correctly
2. Resistance between any two
terminals is measure by an ohm
gauge and should be less than 1K
Ohm.
Y
Replace the fan
capacitor C1
Replace the
control panel AP1
Replace the
outdoor fan
End
52
Troubleshooting
(4) Start-up failure (following AP1 for outdoor unit control board)
Mainly detect:
Whether the compressor wiring is connected correct?
Is compressor broken?
Is time for compressor stopping enough?
Fault diagnosis process:
Power on the unit
Is stop time of the compressor
longer than 3 minutes?
Restart it up after
3 minutes
N
Y
Does startup fail?
Y
Are the wires for the compressor connected
correctly? Is connection sequence right?
N
Y
Replace the control panel AP1
N
If the fault is eliminated?
N
Replace the
compressor
Y
End
53
Connect the wires as
per the connection
diagram
Troubleshooting
(5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit)
Mainly detect:
Whether the system pressure is too high?
Whether the input voltage is too low?
Fault diagnosis process:
Out of step occurs once the
unit is powered on.
Out of step occurs in
operation
Is stop time of the
compressor longer than
3 minutes?
Is the outdoor fan working
normally?
Is the outdoor unit blocked
by foreign objects?
Are the wires for the compressor connected
correctly? Is connection sequence right?
Is the connection made in clockwise
direction?
Replace the
control panel AP1
Connect the
wires correctly
Replace the control
panel AP1
If the fault is eliminated?
If the fault is eliminated?
Replace the
compressor
Replace the
compressor
End
End
54
Check if the fan terminal
OFAN is connected correctly
Replace the fan
capacitor C1
Replace the
outdoor fan
Remove foreign objects
Troubleshooting
(6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board)
Mainly detect:
Wether the PMV is connected well or not? Is PMV damaged?
Is refrigerant leaked?
Fault diagnosis process:
20 minutes after the
complete unit is
powered off
Is the terminal FA for the
electronic expansion valve
connected correctly?
Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.
Replace the electronic
expansion valve
If the fault is eliminated?
Replace the
control panel
AP1
If the fault is eliminated?
Coolant leakage, refilling
the coolant
End
55
Connect the
wires correctly
Troubleshooting
(7)Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor
unit)
Mainly detect:
Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken
Fault diagnosis process:
Start
Check wiring of the
reactor (L) of the
outdoor unit and the
PFC capacitor
Whether there is any
damage or
short-circuit?
Y
Replace it as per the
wiring diagram and
reconnect the wires
If the fault is eliminated?
N
Remove the PFC capacitor
and measure resistance
between the two terminals.
Is the resistance around zero?
N
Y
The capacitor is
short circuited and
the capacitor
should be replaced
Restart the unit
If the fault is eliminated?
Y
N
Disconnect the terminals for the
reactor and measure the resistance
between the two terminals of the
reactor by an ohm gauge
Whether there is any damage
or short-circuit?
N
Y
Replace the reactor
Restart the unit
If the fault is eliminated?
Y
N
Replace the control
panel AP1
N
Y
End
56
Troubleshooting
(8) Communication malfunction: (following AP1 for outdoor unit control board)
Mainly detect:
Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged?
Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is
there any damage?
Fault diagnosis process:
Start
Y
Did the equipment operate
normally before the failure
occurs?
N
Check the wiring of the indoor and
outdoor units with reference to the
wiring diagram
Check wiring inside of
the indoor and outdoor
units
Y
Is the connection right?
N
N
The AP1 voltage
detection circuit
is at fault
Y
Correctly connect the
corresponding wires for
the indoor and outdoor
units with reference to
the wiring diagram
Are wires broken?
N
If the fault is eliminated?
N
Check the communication
circuit of the outdoor unit
If the fault is eliminated?
The communication
circuit is abnormal
Y
N
Replace the main board
˄AP1˅of the outdoor unit
If the fault is eliminated?
N
Replace the main board
of the indoor unit
Y
Y
End
57
Y
Troubleshooting
(9) Flow chart for outdoor communitcation circuit detecting:
Start
Measure voltage at the
Test 10 position as
shown in the diagram
with a voltmeter
Value jumping
N
Y
Measure voltage at the
Test 15 position as
shown in the diagram
with a voltmeter
Y
Value jumping
N
Y
Fault with
outdoor unit
Measure voltage at the
Test 11 position as
shown in the diagram
with a voltmeter
Value jumping
End
N
Y
Measure voltage at the
Test 12 position as
shown in the diagram
with a voltmeter
N
Value jumping
Y
The communication
circuit of the outdoor
unit is normal
Note: Below information only for reference.
58
Removal Procedure
10. Removal Procedure
10.1 Removal Procedure of Indoor Unit
Warning
Be sure to wait 10 minutes or more after turning
off all power supplies before disassembling work.
1.Disassemble Front Panel
Front
Push the convex parts in the left and right sides
of the front panel, and then lift the front panel.
Panel
Unscrew the screws fixing the display cover and
pull out the plug.Forcibly lift the front panel upwards from the clasps to take it out.
Display Cover
screw
2.Disassemble Filter and Press Plate
Top the middle section of air filter from the clasps
Filter
at both sides.Pull the air filter forward to remove
it.
Unscrew the 1 screw on press plate to open the
press plate.
Clasps
Press Plate
3.Disassemble Guide Louver
Push out the axile bush in the middle of guide
louver .Then slightly bend the guide louver to
remove it.
Guide Louver
4.Disassemble Front Case
Unscrew the 7 tapping screws fixing the front
case, and turn the front case backwards to remove it.
Screw
59
Removal Procedure
5.Disassemble Water Tray
Ground Screw
Electric Box Cover
Screw
Water Tray
Unscrew the ground screw on the electric box
cover and loose the clasps to remove electric
box cover.Pulll out the wiring terminal.Unscrew
the 2 screws fixing the water tray to remove the
water tray.
6.Disassemble Electric Box
Unscrew the 2 screws fixing the electric box.
Ground Screw
Unplug the motor terminal.Unscrew the three
ground screws.Lift the electric box upwards to
remove it.
Screw
7.Disassemble Evaporator
Clamp Plate
of Rear Pipe
Unscrew the screws fixing the clamp plate of rear
pipe at the back of evaporator to remove the plate.
Screw
Unscrew the 2 screws in the right of evaporator.
Screw
60
Removal Procedure
Unscrew the 2 screws in the left of evaporator
Turn the evaporator at certain angle to remove it.
Screw
8.Disassemble Motor and Cross Flow Fan
Unscrew the screws fixing the press plate of
motor and connecting motor and cross flow fan
to remove the motor and cross flow fan.
Screw
Screw
61
Removal Procedure
10.2 Removal Procedure of Outdoor Unit
Warning
Be sure to wait 10 minutes or more after turning
off all power supplies before disassembling work.
1.Disassemble Big Handleand Top cover
Unscrew the screw fixing the big handle,and then
remove it downwards to take it out.
Unscrew the screws of top cover, then lift it upwards
Top cover
handle
toremove the top cover.
Screw
2.Disassemble Front Panel
Unscrew the screws of front panel with screwdriver to
remove the front panel.
front panel
screw
3.Disassemble Grill and Right Side Plate
Unscrew the screws of grill to remove the grill.
grill
Unscrew the screws of right side plate, condenser
sideplate and valve support, lift it upwards to remove
theright side plate.
Screw
62
Removal Procedure
4. Disassemble electric box subassembly
screw
electric box cover
Unscrew the screws fixing electric box cover, lift it
upward to remove the electric box cover.
Unscrew the screws fixing electric box, pull out
theconnection wire of compressor motor, fan motor
andelectric box, lift them upward to remove the
electricbox.
screw
electric box
5.Disassemble Axial Flow Fan
Loosen the tight nut fixing the axial flowfan witha
spanner ,and then take out the nut,spring gasketand
flap gasket in turn.
tight nut
axial flow fan
6.Disassemble Motor and Motor Support
motor supoort
Unscrew tight screw to take motor out, unscrew
thescrews fixing motor support, lift it upward to
removethe motor supoort.
screws
63
motor
Removal Procedure
7.Disassemble 4-way valve subassembly
4-way valve
Weld out the 4 spot weld connect 4-way valve subassembly and condenser, inlet and outlet port
ofcompressor, gas valve to remove the 4-way valve
spot weld
subassembly. Be sure weld it as soon as possible
toavoid burn out the leading wire of compressor
(Note:Confirm the refrigerant is out completely before weldout the 4-way valve subassembly.).
valve
8.Disassemble Gas and Liquid Valves
liquid valve
Unscrew the two bolts fixing gas valve and
liquidvalve.Unsolder weld spots between gas valve
and(Note:During unsoldering ,wrap the valves
withwet cloth to avoid damage for high temperature.)
bolts
and air-return pipe to remove the gas valve.Unscrew
the two bolts fixing liquid valve. Unsolderweld spots
gas valve
between liquid valve and capillary toremove the liquid valve.
9.Disassemble Compressor
Unscrew the three foot-nuts at the foot of the
compressortake out the compressor.compressor,
and then carefully remove the pipes to,unsolder the
suction and the discharge pipes.
foot nut
64