Service Manual - Servair Ltd Air Conditioning

Service Manual
MODEL: GWC18AC-D3DNA1B
GWC24AC-D3DNA1B
GWH18AC-D3DNA1B
GWH24AC-D3DNA1B
GWH18AC-D3DNA2B
GWH24AC-D3DNA2B
(Refrigerant R410A)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Table of Contents
Summary and features..................................................................................1
Part 1 Safety Precautions..........................................................................................2
Part 2 Specifications.....................................................................................................3
2.1 Unit Specifications..................................................................................................3
2.2 Operation Characteristic Curve............................................................................13
2.3 Capacity Variation Ratio According to Temperature............................................14
2.4 Operation Data.....................................................................................................14
2.5 Noise criteria curve tables for both models..........................................................15
Part 3 Construction Views......................................................................................16
3.1 Indoor Unit ...........................................................................................................16
3.2 Outdoor Unit ........................................................................................................17
Part 4 Refrigerant System Diagram...................................................................18
Part 5 Schematic Diagram......................................................................................19
5.1 Electrical Data......................................................................................................19
5.2 Electrical Wiring....................................................................................................19
5.3 Printed Circuit Board.............................................................................................21
Part 6 Function and Control...................................................................................23
6.1 Remote Control Operations..................................................................................23
6.2 Changing Batteries and Notices ..........................................................................25
6.3 Description of Each Control Operation.................................................................26
6.4 Functions of Outdoor Unit....................................................................................30
Part 7 Installation Manual........................................................................................33
7.1 Important Notices.................................................................................................35
7.2 Install Indoor Unit.................................................................................................35
7.3 Install Outdoor Unit ..............................................................................................37
Part 8 Exploded Views and Parts List..............................................................39
8.1 Indoor unit.............................................................................................................39
8.2 Outdoor unit..........................................................................................................47
Part 9 Troubleshooting...............................................................................................55
Part10 Removal Procedure.......................................................................................83
10.1 Removal Procedure of Indoor Unit.....................................................................83
10.2 Removal Procedure of Outdoor Unit...................................................................86
Summary and features
Summary and features
Indoor Unit
GWC18AC-D3DNA1B/I
GWC24AC-D3DNA1B/I
GWH18AC-D3DNA1B/I
GWH24AC-D3DNA1B/I
GWH18AC-D3DNA2B/I
GWH24AC-D3DNA2B/I
Outdoor Unit
GWC18AC-D3DNA1B/O
GWH18AC-D3DNA1B/O
GWC24AC-D3DNA1B/O
GWH24AC-D3DNA1B/O
Remote control window
YT1FF
FAN
MODE
I FEEL
CLOCK
TIMER
ON
X-FAN
TEMP
TIMER
OFF
TURBO
SLEEP
LIGHT
1
Safety Precautions
1.Safety Precautions
Installing, starting up, and servicing air conditioner can be
Make sure the outdoor unit is installed on a stable, level
hazardous due to system pressure, electrical components, and
surface with no accumulation of snow, leaves, or trash
equipment location, etc.
beside.
Only trained, qualified installers and service personnel are
Make sure the ceiling/wall is strong enough to bear the
allowed to install, start-up, and service this equipment.
weight of the unit.
Untrained personnel can perform basic maintenance functions
Make sure the noise of the outdoor unit does not disturb
such as cleaning coils. All other operations should be
neighbors.
performed by trained service personnel.
When handling the equipment, observe precautions in the
manual 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.
Read the instructions thoroughly and follow all warnings or
cautions in literature and attached to the unit. Consult local
building codes and current editions of national as well as local
electrical codes.
Caution
Avoid contact between refrigerant and fire as it generates
poisonous gas.
Apply specified refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the
refrigerant line as it may lead to rupture and other hazards.
Make sure no refrigerant gas is leaking out when
installation is completed.
Should there be refrigerant leakage, the density of
Recognize the following safety information:
Warning
Follow all the installation instructions to minimize the risk
of damage from earthquakes, typhoons or strong winds.
Incorrect handling could result in
personal injury or death.
Incorrect handling may result in
minor injury, or damage to product
or property.
Warning
refrigerant in the air shall in no way exceed its limited
value, or it may lead to explosion.
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.
Caution
All electric work must be performed by a licensed technician
Never install the unit in a place where a combustible gas
according to local regulations and the instructions given in this
might leak, or it may lead to fire or explosion.
manual.
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.
Provide an electric leak breaker when it is installed in a
watery place.
Never wash the unit with water.
Handle unit transportation with care. The unit should not be
Never supply power to the unit unless all wiring and tubing
carried by only one person if it is more than 20kg.
are completed, reconnected and checked.
Never touch the heat exchanger fins with bare hands.
This system adopts highly dangerous electrical voltage.
Never touch the compressor or refrigerant piping without
Incorrect connection or inadequate grounding can cause
wearing glove.
personal injury or death. Stick to the wiring diagram and all
Do not have the unit operate without air filter.
the instructions when wiring.
Should any emergency occur, stop the unit and disconnect
Have the unit adequately grounded in accordance with
the power immediately.
local electrical codes.
Have all wiring connected tightly. Loose connection may
lead to overheating and a possible fire hazard.
All installation or repair work shall be performed by your dealer
or a specialized subcontractor as there is the risk of fire, electric
shock, explosion or injury.
2
Make a proper provision against noise when the unit is
installed at a telecommunication center or hospital.
Properly insulate any tubing running inside the room to
prevent the water from damaging the wall.
Specifications
2.Specifications
2.1 Unit Specifications
Model
Product Code
Function
Rated Voltage(V)
Frequency(Hz)
Total Capacity (W) Standard (Low~High)
Total Capacity (Btu/h) Standard (Low~High)
Power Input (W) Standard (Low~High)
Rated Input (W)
Rated Current (A)
3
Air Flow Volume (m /h) (SH/H/M/L)
Dehumidifying Volume (l/h)
EER / C.O.P (W/W)
Energy Class
Model of Indoor Unit
Fan Motor Speed (r/min) (SH/H/M/L)
Output of Fan Motor (W)
GWC24AC-D3DNA1B
CB11500420
COOLING
CB11500440
COOLING
208-230
208-230
60
60
5275(1820~6450)
6450(2300~7680)
18000(6200~22000)
22000(7800~26200)
1500(180~2650)
1832(220~2660)
2650
2660
12
12.2
830/750/650/550
1030/800/700/600
2
2.5
3.51
3.51
SEER=20
SEER=19
GWC18AC-D3DNA1B/I
GWC24AC-D3DNA1B/I
1500/1150/1050/950
1380/1000/900/750
20
35
Input Power of Heater (W)
/
/
Fan Motor Capacitor (μF)
1.5
2.5
0.25
0.45
Cross flow fan
Cross flow fan
Fan Motor RLA(A)
Fan Type
Diameter-Length (mm)
Evaporator
Indoor
unit
GWC18AC-D3DNA1B
Pipe Diameter (mm)
Row-Fin Gap(mm)
Coil length (l) X height (H) X coil width (L)
Swing Motor Model
Output of Swing Motor (W)
Φ98X733
Φ98X828
Aluminum fin-copper tube
Aluminum fin-copper tube
Φ7
Φ7
2-1.4
2-1.5
740X304.8X25.4
836X400X25.4
MP28VB
MP35XX
2.5
2.5
Fuse (A)
PCB 3.15A
PCB 3.15A
Sound Pressure Level dB (A) (SH/H/M/L)
46/43/40/35
51/43/40/35
Sound Power Level dB (A) (SH/H/M/L)
Dimension (W/H/D) ( mm)
Dimension of Package (L/W/H)( mm)
Net Weight /Gross Weight (kg)
56/53/50/45
61/53/50/45
960X300X195
1090X330X208
1035X390X280
1160X410X310
13/18
16/21
3
Specifications
Model of Outdoor Unit
GWC18AC-D3DNA1B/O
Product Code
Com pres sor Manufacturer/tradem ark
Com pres sor Model
Com pres sor Type
L.R.A. (A)
Com pres sor RLA(A)
Com pres sor Power Input(W)
Overload Protector
GWC24AC-D3DNA1B/O
CB115W0420
CB115W0440
China Res ources (Shenyang)
Sanyo CO.,LTD
C-6RZ146H1A
China Res ources (Shenyang)
Sanyo CO.,LTD
C-6RZ146H1A
Twin rotary com pres sor
Twin rotary com pres sor
41
41
8.4
8.4
1640
1640
1NT11L-3979
1NT11L-3979
Throttling Method
Electric expand valve
Electric expand valve
Starting Method
Transducer starting
Transducer starting
5 ≤T≤46
5 ≤T≤46
Aluminum fin-copper tube
Aluminum fin-copper tube
7
7
Working Tem p Range (℃)
Condenser
Pipe Diam eter (mm )
Rows -Fin Gap(m m)
Coil length (l)X height (H) X coil width (L)
Fan Motor Speed (rpm) (H/M/L)
Outdoor Output of Fan Motor (W)
unit
Fan Motor RLA(A)
Fan Motor Capacitor(μF)
3
Air Flow Volum e of Outdoor Unit(m /h )
Fan Type
Fan Diam eter (mm )
Defros ting Method
Climate Type
Is olation
Moisture Protection
Permis sible Exces s ive Operating Pres s ure
for the Dis charge Side(MPa)
Permis sible Exces s ive Operating Pres s ure
for the Suction Side(MPa)
Sound Pres sure Level dB (A)
2-1.4
2-1.4
837X660X38.1
967X748X38.1
690/500
780
60
90
0.4
0.6
/
/
3200
4200
Axial fan
Axial fan
Φ520
Φ552
Auto defros t
Auto defros t
T1
T1
I
I
IP24
IP24
3.8
3.8
1.2
1.2
54
56
Sound Power Level dB (A)
64
66
Dim ens ion (W/H/D) ( m m )
890X700X340
920X790X370
Dim ens ion of Package (L/W/H)( m m )
1030X460X735
1065X485X840
50/55
54/60
R410A/1.45
R410A/1.80
8
8
Net Weight /Gross Weight (kg)
Refrigerant and Charge (kg)
Length (m )
Gas additional charge(g/m)
Connecti
Outer Diameter
on Pipe
Max Distance
Liquid Pipe (mm )
Gas Pipe (m m)
20
30
Φ6
Φ6
Φ12
Φ16
Height (m )
15
15
Length (m )
30
30
The above data is subject to change without notice. Please refer to the nameplate of the unit.
4
Specifications
Model
GWH18AC-D3DNA1B
Product Code
CB11500430
COOLING
Function
HEATING
208-230
Rated Voltage(V)
60
Frequency(Hz)
Total Capacity (W) Standard (Low~High)
Total Capacity (Btu/h) Standard (Low~High)
Power Input (W) Standard (Low~High)
Rated Input (W)
Rated Current (A)
5275(1820~6450)
7325(1200~7325)
18000(6200~22000)
25000(4100~25000)
1500(180~2650)
2700(240~2700)
2650
2700
12
Air Flow Volum e (m 3/h) (SH/H/M/L)
Dehum idifying Volum e (l/h)
EER / C.O.P (W/W)
Energy Clas s
Model of Indoor Unit
Fan Motor Speed (r/m in) (SH/H/M/L)
Output of Fan Motor (W)
2
3.51
2.71
HSPF=10.2(Region Ⅳ )
SEER=20
HSPF=8.8(Region Ⅴ )
GWH18AC-D3DNA1B/I
1500/1150/1050/950
1500/1200/1100/1000
20
Input Power of Heater (W)
/
Fan Motor Capacitor (μF)
Fan Motor RLA(A)
1.5
Fan Type
Diam eter-Length (m m )
Evaporator
Indoor
unit
12.4
830/750/650/550
Pipe Diam eter (m m )
Row-Fin Gap(m m )
Coil length (l) X height (H) X coil width (L)
Swing Motor Model
Output of Swing Motor (W)
0.25
Cros s flow fan
Φ98X733
Alum inum fin-copper tube
Φ7
2-1.4
740X304.8X25.4
MP28VB
2.5
Fuse (A)
PCB 3.15A
Sound Pres s ure Level dB (A) (SH/H/M/L)
46/43/40/35
Sound Power Level dB (A) (SH/H/M/L)
Dim ens ion (W/H/D) ( m m )
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gros s Weight (kg)
56/53/50/45
960X300X195
1035X390X280
13/18
5
Specifications
Model of Outdoor Unit
GWH18AC-D3DNA1B/O
CB115W0430
Product Code
Com pres sor Manufacturer/tradem ark
China Res ources (Shenyang) Sanyo CO.,LTD
C-6RZ146H1A
Com pres sor Model
Twin rotary com pres sor
Com pres sor Type
41
L.R.A. (A)
8.4
Com pres sor RLA(A)
Com pres sor Power Input(W)
1640
Overload Protector
1NT11L-3979
Throttling Method
Electric expand valve
Transducer starting
Starting Method
Working Tem p Range (℃)
Condenser
5 ≤T≤46
-15 ≤T≤30
Aluminum fin-copper tube
Pipe Diam eter (mm )
7
Rows -Fin Gap(m m)
2-1.4
Coil length (l)X height (H) X coil width (L)
Fan Motor Speed (rpm) (H/M/L)
Outdoor Output of Fan Motor (W)
Fan Motor RLA(A)
unit
Fan Motor Capacitor(μF)
Air Flow Volum e of Outdoor Unit(m 3/h )
Fan Type
Fan Diam eter (mm )
Defros ting Method
837X660X38.1
690/500
60W
0.4
/
3200
Axial fan
Φ520
Auto defros t
Climate Type
T1
Is olation
I
Moisture Protection
Permis sible Exces s ive Operating Pres s ure
for the Dis charge Side(MPa)
Permis sible Exces s ive Operating Pres s ure
for the Suction Side(MPa)
Sound Pres sure Level dB (A)
IP24
3.8
1.2
54
Sound Power Level dB (A)
64
Dim ens ion (W/H/D) ( m m )
890X700X340
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gross Weight (kg)
Refrigerant and Charge (kg)
Length (m )
Max Distance
50/55
R410A/1.45
8
Gas additional charge(g/m)
Connecti
Outer Diameter
on Pipe
1030X460X735
20
Liquid Pipe (mm )
Φ6
Gas Pipe (m m)
Φ12
Height (m )
15
Length (m )
30
The above data is subject to change without notice. Please refer to the nameplate of the unit.
6
Specifications
Model
GWH18AC-D3DNA2B
Product Code
CB11500470
COOLING
Function
HEATING
208-230
Rated Voltage(V)
60
Frequency(Hz)
Total Capacity (W) Standard (Low~High)
Total Capacity (Btu/h) Standard (Low~High)
Power Input (W) Standard (Low~High)
Rated Input (W)
Rated Current (A)
5275(1820~6450)
7325(1200~7325)
18000(6200~22000)
25000(4100~25000)
1500(180~2650)
2700(240~2700)
2650
2700
12
Air Flow Volum e (m 3/h) (SH/H/M/L)
Dehum idifying Volum e (l/h)
EER / C.O.P (W/W)
Energy Clas s
Model of Indoor Unit
Fan Motor Speed (r/m in) (SH/H/M/L)
Output of Fan Motor (W)
2
3.51
2.71
HSPF=10.2(Region Ⅳ )
SEER=20
HSPF=8.8(Region Ⅴ )
GWH18AC-D3DNA2B/I
1500/1150/1050/950
1500/1200/1100/1000
20
Input Power of Heater (W)
/
Fan Motor Capacitor (μF)
Fan Motor RLA(A)
1.5
Fan Type
Diam eter-Length (m m )
Evaporator
Indoor
unit
12.4
830/750/650/550
Pipe Diam eter (m m )
Row-Fin Gap(m m )
Coil length (l) X height (H) X coil width (L)
Swing Motor Model
Output of Swing Motor (W)
0.25
Cros s flow fan
Φ98X733
Alum inum fin-copper tube
Φ7
2-1.4
740X304.8X25.4
MP28VB
2.5
Fuse (A)
PCB 3.15A
Sound Pres s ure Level dB (A) (SH/H/M/L)
46/43/40/35
Sound Power Level dB (A) (SH/H/M/L)
Dim ens ion (W/H/D) ( m m )
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gros s Weight (kg)
56/53/50/45
960X300X195
1035X390X280
13/18
7
Specifications
Model of Outdoor Unit
GWH18AC-D3DNA1B/O
CB115W0430
Product Code
Com pres sor Manufacturer/tradem ark
China Res ources (Shenyang) Sanyo CO.,LTD
C-6RZ146H1A
Com pres sor Model
Twin rotary com pres sor
Com pres sor Type
L.R.A. (A)
41
Com pres sor RLA(A)
8.4
Com pres sor Power Input(W)
1640
Overload Protector
1NT11L-3979
Throttling Method
Electric expand valve
Transducer starting
Starting Method
Working Tem p Range (℃)
Condenser
5 ≤T≤46
-15 ≤T≤30
Aluminum fin-copper tube
Pipe Diam eter (mm )
7
Rows -Fin Gap(m m)
2-1.4
Coil length (l)X height (H) X coil width (L)
Fan Motor Speed (rpm) (H/M/L)
Outdoor Output of Fan Motor (W)
Fan Motor RLA(A)
unit
Fan Motor Capacitor(μF)
Air Flow Volum e of Outdoor Unit(m 3/h )
Fan Type
Fan Diam eter (mm )
Defros ting Method
837X660X38.1
690/500
60W
0.4
/
3200
Axial fan
Φ520
Auto defros t
Climate Type
T1
Is olation
I
Moisture Protection
Permis sible Exces s ive Operating Pres s ure
for the Dis charge Side(MPa)
Permis sible Exces s ive Operating Pres s ure
for the Suction Side(MPa)
Sound Pres sure Level dB (A)
IP24
3.8
1.2
54
Sound Power Level dB (A)
64
Dim ens ion (W/H/D) ( m m )
890X700X340
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gross Weight (kg)
Refrigerant and Charge (kg)
Length (m )
Max Distance
50/55
R410A/1.45
8
Gas additional charge(g/m)
Connecti
Outer Diameter
on Pipe
1030X460X735
20
Liquid Pipe (mm )
Φ6
Gas Pipe (m m)
Φ12
Height (m )
15
Length (m )
30
The above data is subject to change without notice. Please refer to the nameplate of the unit.
8
Specifications
Model
GWH24AC-D3DNA1B
Product Code
CB11500450
COOLING
Function
HEATING
Rated Voltage(V)
208-230
Frequency(Hz)
Total Capacity (W) Standard (Low~High)
Total Capacity (Btu/h) Standard (Low~High)
60
6450(2300~7680)
8200(1750~8200)
22000(7800~26200)
28000(6000~28000)
1832(220~2660)
2700(260~2700)
Rated Input (W)
2660
2700
Rated Current (A)
12.2
Power Input (W) Standard (Low~High)
12.5
Air Flow Volum e (m 3/h) (SH/H/M/L)
Dehum idifying Volum e (l/h)
EER / C.O.P (W/W)
Energy Clas s
Model of Indoor Unit
Fan Motor Speed (r/m in) (SH/H/M/L)
Output of Fan Motor (W)
2.5
3.51
3.04
HSPF=10.5(Region Ⅳ )
HSPF=8.8(Region Ⅴ )
SEER=19
GWH24AC-D3DNA1B/I
1380/1000/900/750
1380/1050/950/850
35
Input Power of Heater (W)
/
Fan Motor Capacitor (μF)
Fan Motor RLA(A)
2.5
Fan Type
Diam eter-Length (m m )
Evaporator
Indoor
unit
1030/800/700/600
Pipe Diam eter (m m )
Row-Fin Gap(m m )
Coil length (l) X height (H) X coil width (L)
Swing Motor Model
Output of Swing Motor (W)
0.45
Cros s flow fan
Φ98X828
Alum inum fin-copper tube
Φ7
2-1.5
836X400X25.4
MP35XX
2.5
Fuse (A)
PCB 3.15A
Sound Pres s ure Level dB (A) (SH/H/M/L)
51/43/40/35
Sound Power Level dB (A) (SH/H/M/L)
61/53/50/45
Dim ens ion (W/H/D) ( m m )
1090X330X208
Dim ens ion of Package (L/W/H)( m m )
1160X410X310
Net Weight /Gros s Weight (kg)
16/21
9
Specifications
GWH24AC-D3DNA1B/O
Model of Outdoor Unit
CB115W0450
Product Code
Com pres sor Manufacturer/tradem ark
China Resources (Shenyang) Sanyo CO.,LTD
C-6RZ146H1A
Com pres sor Model
Twin rotary compress or
Com pres sor Type
41
L.R.A. (A)
8.4
Com pres sor RLA(A)
Com pres sor Power Input(W)
1640
Overload Protector
1NT11L-3979
Throttling Method
Electric expand valve
Trans ducer s tarting
Starting Method
Working Tem p Range (℃)
Condenser
5 ≤T≤46
-15 ≤T≤30
Alum inum fin-copper tube
Pipe Diam eter (mm )
7
Rows -Fin Gap(m m)
2-1.4
Coil length (l)X height (H) X coil width (L)
Fan Motor Speed (rpm) (H/M/L)
Outdoor Output of Fan Motor (W)
Fan Motor RLA(A)
unit
Fan Motor Capacitor(μF)
Air Flow Volum e of Outdoor Unit(m 3/h )
Fan Type
Fan Diam eter (mm )
967X748X38.1
780
90W
0.6
/
4200
Axial fan
Φ552
Defros ting Method
Auto defrost
Climate Type
T1
Is olation
I
Moisture Protection
IP24
Permis sible Exces s ive Operating Pres s ure for the
Dis charge Side(MPa)
Permis sible Exces s ive Operating Pres s ure for the
Suction Side(MPa)
Sound Pres sure Level dB (A)
3.8
1.2
56
Sound Power Level dB (A)
66
Dim ens ion (W/H/D) ( m m )
920X790X370
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gross Weight (kg)
Refrigerant and Charge (kg)
Length (m )
Max Distance
54/60
R410A/1.80
8
Gas additional charge(g/m)
Connecti
Outer Diameter
on Pipe
1065X485X840
30
Liquid Pipe (mm )
Φ6
Gas Pipe (m m)
Φ16
Height (m )
15
Length (m)
30
The above data is subject to change without notice. Please refer to the nameplate of the unit.
10
Specifications
Model
GWH24AC-D3DNA2B
Product Code
CB11500490
COOLING
Function
HEATING
Rated Voltage(V)
208-230
Frequency(Hz)
Total Capacity (W) Standard (Low~High)
Total Capacity (Btu/h) Standard (Low~High)
60
6450(2300~7680)
8200(1750~8200)
22000(7800~26200)
28000(6000~28000)
1832(220~2660)
2700(260~2700)
Rated Input (W)
2660
2700
Rated Current (A)
12.2
Power Input (W) Standard (Low~High)
12.5
Air Flow Volum e (m 3/h) (SH/H/M/L)
Dehum idifying Volum e (l/h)
EER / C.O.P (W/W)
Energy Clas s
Model of Indoor Unit
Fan Motor Speed (r/m in) (SH/H/M/L)
Output of Fan Motor (W)
2.5
3.51
3.04
HSPF=10.5(Region Ⅳ )
HSPF=8.8(Region Ⅴ )
SEER=19
GWH24AC-D3DNA2B/I
1380/1000/900/750
1380/1050/950/850
35
Input Power of Heater (W)
/
Fan Motor Capacitor (μF)
Fan Motor RLA(A)
2.5
Fan Type
Diam eter-Length (m m )
Evaporator
Indoor
unit
1030/800/700/600
Pipe Diam eter (m m )
Row-Fin Gap(m m )
Coil length (l) X height (H) X coil width (L)
Swing Motor Model
Output of Swing Motor (W)
0.45
Cros s flow fan
Φ98X828
Alum inum fin-copper tube
Φ7
2-1.5
836X400X25.4
MP35XX
2.5
Fuse (A)
PCB 3.15A
Sound Pres s ure Level dB (A) (SH/H/M/L)
51/43/40/35
Sound Power Level dB (A) (SH/H/M/L)
61/53/50/45
Dim ens ion (W/H/D) ( m m )
1090X330X208
Dim ens ion of Package (L/W/H)( m m )
1160X410X310
Net Weight /Gros s Weight (kg)
16/21
11
Specifications
GWH24AC-D3DNA1B/O
Model of Outdoor Unit
CB115W0450
Product Code
Com pres sor Manufacturer/tradem ark
China Resources (Shenyang) Sanyo CO.,LTD
C-6RZ146H1A
Com pres sor Model
Twin rotary compress or
Com pres sor Type
41
L.R.A. (A)
8.4
Com pres sor RLA(A)
Com pres sor Power Input(W)
1640
Overload Protector
1NT11L-3979
Throttling Method
Electric expand valve
Trans ducer s tarting
Starting Method
Working Tem p Range (℃)
Condenser
5 ≤T≤46
-15 ≤T≤30
Alum inum fin-copper tube
Pipe Diam eter (mm )
7
Rows -Fin Gap(m m)
2-1.4
Coil length (l)X height (H) X coil width (L)
Fan Motor Speed (rpm) (H/M/L)
Outdoor Output of Fan Motor (W)
Fan Motor RLA(A)
unit
Fan Motor Capacitor(μF)
Air Flow Volum e of Outdoor Unit(m 3/h )
Fan Type
Fan Diam eter (mm )
967X748X38.1
780
90W
0.6
/
4200
Axial fan
Φ552
Defros ting Method
Auto defrost
Climate Type
T1
Is olation
I
Moisture Protection
IP24
Permis sible Exces s ive Operating Pres s ure for the
Dis charge Side(MPa)
Permis sible Exces s ive Operating Pres s ure for the
Suction Side(MPa)
Sound Pres sure Level dB (A)
3.8
1.2
56
Sound Power Level dB (A)
66
Dim ens ion (W/H/D) ( m m )
920X790X370
Dim ens ion of Package (L/W/H)( m m )
Net Weight /Gross Weight (kg)
Refrigerant and Charge (kg)
Length (m )
Max Distance
54/60
R410A/1.80
8
Gas additional charge(g/m)
Connecti
Outer Diameter
on Pipe
1065X485X840
30
Liquid Pipe (mm )
Φ6
Gas Pipe (m m)
Φ16
Height (m )
15
Length (m)
30
The above data is subject to change without notice. Please refer to the nameplate of the unit.
12
Specifications
2.2 Operation Characteristic Curve
Models:GWC18AC-D3DNA1B,GWH18AC-D3DNA1B,GWH18AC-D3DNA2B
Cooling
Heating
11
11
9
Current (A)
8
220V
9
8
7
6
230V
5
4
3
7
230V
6
5
240V
4
3
240V
2
220V
10
Current (A)
• Conditions
Indoor : DB26.7˚C/WB19.4˚C
Outdoor : DB35˚C/WB23.9˚C
Indoor air flow : Turbo
Pipe length : 7.6m
10
• Conditions
Indoor : DB21.1˚C/WB15.6˚C
Outdoor : DB8.33˚C/WB6.11˚C
Indoor air flow : Turbo
Pipe length : 7.6m
2
1
1
0
0
0
10
20
30
40
50
60
70
80
90
0
10 20 30 40 50 60 70 80 90 100 110 120
Compressor speed (rps)
Compressor speed (rps)
Models:GWC24AC-D3DNA1B,GWH24AC-D3DNA1B,,GWH24AC-D3DNA2B
Cooling
Heating
11
11
9
Current (A)
8
220V
10
220V
9
8
Current (A)
• Conditions
Indoor : DB26.7˚C/WB19.4˚C
Outdoor : DB35˚C/WB23.9˚C
Indoor air flow : Turbo
Pipe length : 7.6m
10
7
6
230V
5
4
3
7
230V
6
5
240V
4
3
240V
2
• Conditions
Indoor : DB21.1˚C/WB15.6˚C
Outdoor : DB8˚C/WB6.11˚C
Indoor air flow : Turbo
Pipe length : 7.6m
2
1
1
0
0
0
10
20
30
40
50
60
Compressor speed (rps)
70
80
90
0
10 20 30 40 50 60 70 80 90 100 110 120
Compressor speed (rps)
13
Specifications
2.3 Capacity Variation Ratio According to Temperature
Cooling
Heat i n g
105
110
100
100
Capacity ratio (%)
Capacity ratio (%)
95
90
85
80
75
70
Conditions
Indoor:DB26.7℃/WB19.4℃
Indoor air flow:Turbo
Pipe length:7.6m
65
60
55
50
32
33
34
35
36
37
38
39
40
41
42
90
80
70
Conditions
Indoor:DB21.1℃/WB15.6℃
Indoor air flow:Turbo
Pipe length:7.6m
60
50
40
–15
43
Outdoor temp. (˚C)
–1
0
–5
0
5
7
Outdoor temp. (˚C)
2.4 Operation Data
Cooling
Temperature
(°C)
Indoor
26.7/19.4
condition
Outdoor
35/–
Model
name
Standard
pressure
P (MPa)
Heat exchanger
temp.
pipe
Compresso
Outdoor fan r revolution
mode
(rps)
T1 (°C)
T2 (°C)
Indoor fan
mode
18K
0.9 to 1.1
12 to 14
41 to 43
High
High
62
24K
0.8 to 1.0
10 to 12
43 to 45
High
High
78
Model
name
Standard
pressure
P (MPa)
18K
24K
Heating
Temperature
(°C)
Indoor
21.1/–
condition
Outdoor
8/6.11
Heat exchanger
temp.
pipe
Indoor fan
mode
Compresso
Outdoor fan r revolution
mode
(rps)
T1 (°C)
T2 (°C)
2.2 to 2.4
37 to 38
2 to 4
High
High
62
2.5 to 2.7
42 to 44
0 to 3
High
High
80
P: The high side pressure measured from gas valve
T1:The coil temperature of indoor unit
T2:The coil temperature of outdoor unit
NOTES :
(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U
bent. (Thermistor themometer)
(2) Connecting piping condition : 7.6 m
14
10
Specifications
2.5 Noise criteria curve tables for both models
Indoor side noise when blowing
Outdoor side noise
60
50
Noise/dB(A)
Noise/dB(A)
50
40
30
40
30
20
0
Low
High
Middle
Indoor fan motor rotating speed
18K
24K
20
40
60
80
100
Super High
Compressor frequency/Hz
18K
24K
15
Constrction views
3. Construction Views
3.1 Indoor Unit
H
D
W
7cm
Left
Right
15cm
960
694
119
Uint:mm
147
50
300
18K
15cm
125
61
24K
1090
685
185
55
55
330
220
114
110
MODEL
18K
24K
16
W(
960
1090
)
H(
300
330
)
D(
195
208
)
Constrction views
3.2 Outdoor Unit
18K
700
890
396
963
560
368
340
Unit:mm
24K
790
920
427
1000
399
370
610
17
Constrction views
4. Refrigerant System Diagram
(1)Cooling Only Models
3-Way
(2)Cooling & Heating Models
3-Way
valve
Heat exchanger
( INDOOR )
Compressor
Muffler
2-Way
valve
4-Way valve
Sub-accumulator
Strainer
Expansion valve
Strainer
Heat exchanger
( OUTDOOR )
Strainer
Cooling
Heating
Models:
GWC18AC-D3DNA1B
GWH18AC-D3DNA1B
GWH18AC-D3DNA2B
Liquid:1/4”(6mm)
Gas:1/2”(12mm)
18
Models:
GWC24AC-D3DNA1B
GWH24AC-D3DNA1B
GWH24AC-D3DNA2B
Liquid:1/4”(6mm)
Gas:5/8”(16mm)
Refrigerant System Diagram
5. Schematic Diagram
5.1 Meaning of marks
Indoor Unit
Symbol
Color symbol
WHITE
WH
Symbol
Color symbol
BROWN
BN
YE
YELLOW
BU
BLUE
RD
RED
BK
BLACK
YELLOW GREEN
YEGN
PROTECTIVE EARTH
Outdoor Unit
Symbol
Parts name
Symbol
L1 L2
REACROR
WH
WHITE
YK
Four-way-Valve
YE
YELLOW
RD
RED
EKV
Electronic expansion valve
BN
SAT OVERLOAD BN BROWN
COMPRESSOR
BU
BLUE
PROTECTIVE EARTH
BK
BLACK
YEGN
YELLOW GREEN
L
Reactor
COMP
Color symbol
5.2 Electrical wiring
TUBE
ROOM
TEM.SENSOR TEM.SENSOR
DISPLAY
AP2
0
0
RT1
RT2
ROOM
DISP1 DISP2
N
COM-OUT
AC-L
CAP
AP1
JUMP
PRINTED CIRCUIT BOARD
XT
N(1)
2
3
1BU
2BK
3BN
4YEGN
5YEGN
PE
EVAPORATOR
SWING-UD
PG
M2
M1
PE
ELECTRIC BOX
OUTDOOR UNIT
TUBE
PGF
SWING
MOTOR
19
Schematic Diagram
Models
GWC18AC-D3DNA1B/O,GWC24AC-D3DNA1B/O
4WH
5WH SAT
WARNING
Please don't touch any terminal when the
voltage of terminal P(DC+) and N(DC-) at
AP1 is higher than 30V to prevent the risk
of electrical shock!
OUTTUBE OUTROOM EXHAUST
TEM.SENSORTEM.SENSORTEM.SENSOR
RT2
0
RT1
0
R
COMP E 6YEGN
S
C(T)
PE
1YE 2BU 3RD
RT3
0
X1
15YE 16BU 17RD
14YEGN PE
COMP-U COMP-V COMP-W
PE PE
INDOOR UNIT
T-SENSOR
7BU
N(1)
11BK
2
8BN
3
9BN
L1
10BU
L2
G
20YEGN
COM-INNER
OVC-COMP
AP1
AC-L
N
HALL
FA
OFAN
PE
XT
INDC1 INDC2 PFCC1 PFCC2
13OG
12WH
L1 L2
POWER
18YE 19YE
M
EKV
FAN MOTOR
L
YEGN
C2
PE
Models
GWH18AC-D3DNA1B/O,GWH24AC-D3DNA1B/O
4WH
5WH SAT
WARNING
Please don't touch any terminal when the
voltage of terminal P(DC+) and N(DC-) at
AP1 is higher than 30V to prevent the risk
of electrical shock!
R COMP E 6YEGN
OUTTUBE OUTROOM EXHAUST
TEM.SENSORTEM.SENSORTEM.SENSOR
RT1
0
RT2
0
S
C(T)
PE
1YE 2BU 3RD
RT3
0
X1
15YE 16BU 17RD
14YEGN PE
COMP-U COMP-V COMP-W
PE PE
INDOOR UNIT
N(1)
7BU
11BK
2
3
8BN
9BN
L1
L2
G
XT
T-SENSOR
10BU
20YEGN
COM-INNER
OVC-COMP
AP1
AC-L
N
FA
4V
HALL
OFAN
PE
INDC1 INDC2 PFCC1 PFCC2
12WH
13OG
18YE 19YE
4YV
L1 L2
POWER
M
EKV
FAN MOTOR
YEGN
L
C2
PE
These circuit diagrams are subject to change without notice. Please refer to the one supplied with the unit.
20
Schematic Diagram
5.3 Printed Circuit Board
TOP VIEW
Live wire
Protective tube
Live wire of health function
Power cord of PG motor
Jumper cap
Connect to up &down
swing motor
Feedback wire of PG motor
Null wire of health function
Null wire
Display port
Communication port
to outdoor unit
Temp sensor
BOTTOM VIEW
21
Schematic Diagram
TOP VIEW
Compressor port
Temp sensor
HALL port of fan
4-way valve
Electronic
Overload protector of compressor
Outdoor fan
expansion valve
Communication port
with indoor unit
Live wire
Ground wire
Null wire
Port 2 of reactor
BOTTOM VIEW
22
Port of capacitor PFC
Port1 of reactor
Function and Control
6. Function and Control
6.1 Remote Control Operations
1
ON/OFF
Press it to start or stop operation.setting.
2
- : Press it to decrease temperature
3
+ : Press it to increase temperature setting.
4
FAN
Press it to set fan speed.
5
MODE
Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT/I FEEL).
6
I FEEL
7
Press it to select HEALTH function ON/OFF.
1
2
4
3
7
Press it to select AIR function ON/OFF.
9
5
6
8
Press it set clock.
8
10
TIMER ON
Press it to set auto-on timer.
9
10
11
11
12
13
14
12
15
CLOCK
Press it set swing angle.
X-FAN(X-FAN is the alternative expression of BLOW for the purpose of
understanding.)
17
16
13
TEMP
14
TIMER OFF
Press it to set auto-off timer
15
TURBO
16
SLEEP
17
LIGHT
Press it to turn on/off the light.
1 ON/OFF :
Press this button to start the unit operation .Press this button again to stop the unit operation.
2
Press this button to decrease set temperature.Holding
it down above 2 seconds rapidly decreases set temperature. In
.
AUTO mode, set temperature is not adjustable.
3
+:
Press this button to increase set temperature.Holding it down above 2 seconds rapidly increases set temperature. In AUTO
mode, set temperature is not adjustable.
4 FAN :
This button is used for setting Fan Speed in the sequence that goes from AUTO,
,
, to
, then back to Auto.
Auto
Low speed
Medium speed
High speed
23
Function and Control
5 MODE :
Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN,and HEAT *,
as the following:
FAN
HEAT *
COOL
AUTO
DRY
*Note:Only for models with heating function.
After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and
the unit will automatically select the suitable operation mode in accordance with the room temp erature to make indoor
room comfortable.
6 I FEEL:
Press this button to turn on I FEEL function. The unit automatically adjust temperature according to the sensed temperature.
Press this button again to cancel I FEEL function.
7
Press this button to set HEALTH function ON or OFF. After the unit is turned on, it defaults to HEALTH function ON.
8
Press this button to select AIR function ON or OFF.
9 CLOCK :
Press CLOCK button,
blinking. Within 5 seconds, pressing + or - button adjusts the present time.Holding down either
button above 2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5
second. During blinking after setting, press CLOCK button again to confirm the setting,and then
will be constantly
displayed.
10 TIMER ON :
Press this button to initiate the auto-ON timer. To cancel the auto-timer program,simply press this button again. After press of this button,
disappears and "ON "blinks .00:00 is displayed for ON time setting. Within 5 seconds,press + or - button to adjust the time value.
Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes the time setting by 1 minute
and then 10 minutes. Within 5 seonds after setting, press TIMER ON button to confirm.
11
:
Press this button to set up &down swing angle, which circularly changes as below:
OFF
This remote controller is universal . If any command
,
or
is sent out, the unit will carry out the command as
indicates the guide louver swings as:
12
X-FAN:
Pressing X-FAN button in COOL or DRY mode,the icon
in order
is displayed and the indoor fan will continue operation for 10 min utes
to dry the indoor unit even though you have turned off the unit.
After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO,FAN or HEAT mode.
13
TEMP:
Pressing TEMP button,
(set temperature),
(indoor ambient temperature) and
(outdoor ambient temperatur) is displayed
circularly .The unit defaults not to display the icon. During operation of TEMP button, the set temperature is always displayed.
Note: Outdoor ambient temperature is only displayed for some models.
14 TIMER OFF :
Press this button to initiate the auto-off timer. To cancel the auto-timer program,simply press the button again.TIMER OFF 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. 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
24
Function and Control
high fan speed. (This function is not applicable for some models)
16
SLEEP:
Press this button to go into the SLEEP operation mode. Press it again to cancel. This function is available in COOL , HEAT (Only for
models with heating function) or DRY mode to maintain the most comfortable temperature for you.
17
LIGHT:
Press LIGHT button to turn on the display's light and press this button again to turn off the display’s light.if the light is tunrned on,
is displayed. If the light is tunrned off
disappears.
3 and 2 About lock
Press "+
+ " and "-- " buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
pressing any button,
5 and 2
is displayed. In this case,
blinks three times.
About switch between fahrenheit and cenrigrade At unit OFF, press "MODE " and "- " buttons simultaneously to switch
between ć and ̧ .
6.2 Changing Batteries and Notices
1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure)
2.Take out the old batteries.
3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
4. Close the battery cover plate.
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.
Sketch map for
replacing batteries
25
Function and Control
6.3 Description of each control operation
1.Basic function of system
(1)Cooling mode
1.Under this mode, fan motor, swing will work under setting status, the temp. range is 16-30
scale)
(61-86 Fahrenheit
2.Outdoor unit malfunction or unit stop running, indoor unit will keep origina l running status, malfunction displayed.
3.When 0 (Tset-Tamb.), if indoor fan motor is high speed, that the fan motorist running in middle speed, the
middle speed or low speed will be maintained;(this condition should be executed when compressor start up);the super
, the fan will return to the setting fan speed.
high speed will not rotate; When (Tamb-Tset)
(2)Dehumidifying mode
1.Under this mode, fan motor will run at low speed, swing will work at setting status, setting temp. range is 16-30
(61-86 Fahrenheit scale)
2.Outdoor unit malfunction or protection, unit will stop,
indoor unit will keep original running status, malfunction
displayed.
(3)Fan mode
Under this mode, indoor fan motor could be setted at high speed, middle speed, low or auto speed, compressor,
outdoor unit and four-way valve will stop to run.
Under this mode, temp. range should be 16-30 (61-86 Fahrenheit scale)
(4)Heating mode
1.Under this mode, temp. range should be 16-30
(61-86 Fahrenheit scale)
2.Working condition and procedure of heating mode: When unit turn on and enter into Heating mode, indoor unit
enter into anti-cool wind mode, when unit is stop running, and indoor fan motor turns on, blowing heat will act.
3.Protection function, under heating mode, compressor will stop to run due to malfunction happened, indoor fan
motor will blow surplus heat.
4.Defrosting control: When receiving the defrosting signal from outdoor unit, displayer will display H1, 10s later,
indoor fan motor will stop to run.
5.Anti-coold wind function
6.Blow heat air function
a.If heating temp. meets the compressor stop running condi tion, compressors, outdoor fan motor will stop to run,
the upper and lower guide louver will rotate to horizontal position L, indoor fan moto
r run at setting fan speed
for 60s, then the indoor fan motor will stop to run.
b.Due to PG motor block running, the air guide board will keep the position when it stopping. (under each mode),
other malfunction unit will stop to run, the upper and lower air guide louver will rotate to horizontal position
L, indoor fan unit will run at setting fan speed and run for 60s, indoor fan unit will stop to run.
(5)Auto mode:
1.When Tam 26 , select the cooling mode, at this time, the setting temp. is 25 .(77 Fahrenheit scale)
2.Cooling and heating units: Tamb
(68Fahrenheit scale)
3. Cooling only unit: When Tamb
22
22 ,will runat heating mode, at this time, the setting temp. is 20
, it will run at Fan mode, the setting temp. is 25
(77 Fahrenheit scale)
Tindoor amb. 25
,firstly enter into auto mode and run at auto fan speed, other modes will
4.When 23
run at auto mode, will keep the previous running mode. (W hen entering into Dehumidifying mode, it will run at
auto fan speed)
(6) Auto fan speed control mode
26
Function and Control
2. Display state of indoor indicators
(1) State of indoor display board
1. When the unit is powered on, all patterns will be displayed and then only power indicator is on. When the unit is turned on
with a remote controller, the operating indicator is on and operation mode which is set currently is displayed.
2. In defrosting mode, "H1" is displayed on "Double 8".
3. Set temperature is displayed on "Double 8".
Display of operation patterns and mode patterns
When the unit is powered on, all patterns will be displayed and the standby operation indicator will become red. When the unit
is turned on through a remote controller, the operation indicator is light. At the same time, operating mode patterns (mode
indicators include cooling, heating and dehumidification modes) set currently are displayed, and dynamic display patterns of
wind speed are displayed. If the light button is switched off, all display will be turned off.
Temperature display control mode of separated air conditioner
1. When user sets the remote controller at set temperature display, currently set temperature will be displayed.
2. Only when remote signals are converted from other display states into indoor ambient temperature display state, the
remote controller will display indoor ambient temperature for 5 seconds and then return to set temperature display.
3. Only when remote signals are converted from other display states into outdoor ambient temperature display state, the
remote controller will display outdoor ambient temperature for 5 seconds and then return to set temperature display.
4. If the controller is lack of outdoor display functions, as the signal is received, set temperature will be displayed.
5. When the unit is turned off, temperature display will be compulsively set at given temperature by the controller. When the
unit is turned on, patterns as set by remote signals will be displayed.
6. If user does not set up temperature display state, given temperature will be displayed.
(2) Failure display of indoor unit
1. Requirements for failure display
When multiple failures appear at the same time, failure protection codes shall be displayed alternatively.
(1) Hardware failures shall be displayed immediately, referring to requirements in "Failure State Display Table";
(2) Operation states shall be displayed immediately, referring to requirements in "Failure State Display Table";
(3) Other failures shall be displayed 200s after the compressor stops, referring to requirements in "Failure State Display Table".
(Note: in the case that the unit is switched off with the remote controller, or the compressor is switched on again, failure
display waiting time (200s) shall be cleared.)
(4) Frequency limitation and reduction states shall be displayed by means of remote calling.
3. Failure display control
Indicator failure display shall be kept synchronous with Double 8 failure display, that is, during indicator blinking, failure code
corresponding to such indicator shall be displayed on Double 8.
4. Method of remote calling of failure display
Entering the failure remote calling mode: push the light button four times within 3s to call out relevant failure protection code;
Quit the failure remote calling mode: push the light button four times within 3s or call out failure display to enter it for 5 minutes
and then quit.
3. Other control targets
(1) Up and down wind blow functions: model of stepping motor is MP28EA.
When the unit is powered on, the up and down wind blow motor will turn a wind deflector anti-clockwise to Position 0 to shut
down the air outlet. When the unit is switched on and wind blow function is not preset, under the heating mode, up and down
wind blades will turn clockwise to position D; and under other modes, the up and down wind blades will turn clockwise to
position L. If wind blow function is set at the same time as the unit is switched on, the wind blades will swing between position
L and D. The wind blades can be kept in seven states: position L, position A, position B, position C, position D, swing between
position L and D, stop at one position from L to D. When the unit is turned off, the wind deflector will be closed up to position 0.
Wind blow action is effective only when wind blow commands are set and the indoor unit is running.
Note: When the wind blades are set at position L to B, position A to C, or position B to D through
remote setting, the wind deflector will swing between position L and D. L—A—B—C—D.
(2) Buzzer
When the controller is powered on, signals from a remote controller are received, or the auto button
is pushed, a buzzer will give out prompt tone.
(3) Auto button
When the button is pushed, the unit will operate in auto mode and the indoor fan will run in auto state. When the indoor fan is
running, the wind blow motor will work. When the button is pushed again, the unit will be switched off. At the same time as the
button is pushed, the whole unit will be powered on and enter into fast test mode; when the unit is powered on and detects for
continuous 20s (such time shall not be fast tested) that the auto button is pushed, and if the unit is currently at fast test state,
the unit will quit the fast test state.
27
Function and Control
(4) Sleep function
This mode is effective only in cooling and heating modes. Proper sleep curves shall be selected for operation according to
preset temperature.
In cooling mode:
(1) When initial temperature is set at 16-23 , an increase of 1 will be gained every hour after the sleep function is activated.
After 3 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 ,
afterwards, the unit will operate at such temperature.
(2) When initial temperature is set at 24-27 , an increase of 1 will be gained every hour after the sleep function is activated.
After 2 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 ,
afterwards, the unit will operate at such temperature.
(3) When initial temperature is set at 28-29 , an increase of 1 will be gained every hour after the sleep function is activated.
fter 1 is raised, the temperature will be maintained. After operation for 7 hours, temperature will go down by 1 ,
afterwards, the unit will operate at such temperature.
In heating mode:
(1) When initial temperature is set at 16 , the unit will operate at such temperature.
(2) When initial temperature is set at 17-20 , a decrease of 1 will be gained every hour after the sleep function is
activated. After 1 is reduced, the temperature will be maintained.
(3) When initial temperature is set at 21-27 , a decrease of 1 will be gained every hour after the sleep function is
activated. After 2 is reduced, the temperature will be maintained.
(4) When initial temperature is set at 28-30 , a decrease of 1 will be gained every hour after the sleep function is
activated. After 3 is reduced, the temperature will be maintained.
(5) Timing function
The main board integrates general timing and moment timing. Such two timing functions can be selected through a remote
controller on which different functions are arranged.
1 General timing:
○
Timing start: timing start can be set when the unit is off. When preset time is reached, the controller will operate in a preset
mode. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours.
Timing stop: timing stop can be set when the unit is on. When preset time is reached, the system will be turned off. Timing
can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours.
2 Moment timing
○
Timing start: if timing start is set when the system is at operation state, the system will continue to operate; if timing start is set
when the system is at stop, as the preset time is reached, the system will start to run in preset mode.
Timing stop: if timing stop is set when the system is at stop state, the system will keep standby; if timing stop is set when the
system is in operation, as the preset time is reached, the system will stop running.
Timing change:
When the system is in timing mode, start and stop can be set through the On/Off button on the remote controller; or timing
time can be reset and the system will operate according to the latest setting.
When the system is in operation and both timing start and stop are set, the system will stay at currently set operation state.
When preset timing stop time is reached, the system will stop working.
When the system is at stop state and both timing start and stop are set, the system will keep at stop state. When preset timing
start time is reached, the system will start operation.
From then on, the system will operate in preset mode at a preset start time and stop at a preset stop time everyday. If timing
stop time is set as the same as timing start time, a stop command will be executed.
(6) Dry and mildew proof function
Dry and mildew proof function can be set in cooling and dehumidification modes.
(7) Control of indoor fan
Indoor fan can be set at four levels, super-high, high, middle and low, with a remote controller. When one level is set, the fan
will thus operate at such level. The fan can also be set at auto state.
(8) Power off Memory Function
What will be memorized includes modes, up and down wind blow, light, preset temperature, preset wind speed, general timing
(no memory for moment timing), and Fahrenheit /Celsius degree. When the unit is powered on again after power failure,
operation continues according to memorized content. If timing is not set by the last remote control command, the system will
memorize the last remote control command and operate in the mode specified in the last remote control command. If timing is
set by the last remote control command and power failure happens before the preset time, the system, as powered on again,
will memorize the timing function set by the last remote control command. Timing will be re-counted from the time at which the
system is powered again. If timing is set by the last remote control command and timing of start or stop is reached before
power failure, the system, as powered on again, will memorize operation state before power failure and will not perform timing
action. Moment timing is out the range of memory.
28
Function and Control
(9) Locked Protection of PG Motor
When starting up the fans, if the motor has run at a lower speed continuously for a period, for preventing
automatic protection of the motor, stop running, and display the locked operation; if the machine is running at
present, the code of the locked fault---H6 of double-eight digital tubes will be displayed; if the machine is shut
down at present, the information of the locked fault will not be displayed.
(10) Super Power Function
In cooling and heating modes (automatic, dehumidifying and air-supplying modes are without strong power),
press the button of Super Power, the wind speed on the remote controller is displayed as super-high air flow, and
the inner fans are also turned to super-high air flow;
(11) Health Function
When the inner fans are running, the remote controller is set at the Health function at this time (if there is no
Health button on the remote controller, the Health On order is defaulted), then start the Health function device.
5. Fault Detection of Temperature Sensor
(1) Indoor Environment Temperature Sensor:
Detect the fault of thermo-bulb at any time;
(2) Indoor Pipe Temperature Temperature Sensor:
During the defrosting period, the fault of the thermo-bulb will be not detected, which shall be detected in 5
minutes after defrosting is completed; the fault of the thermo-bulb will be detected at other times;
(3) Protecting Treatments of Temperature Sensor:
1.When the thermo-bulb is detected to be short-circuited continuously for 30 seconds:
It is regarded that the temperature detected by the thermo-bulb is over-high (or unlimited), then the whole
machine will exert corresponding safety stops according to the over-high temperature sensed by the thermo-bulb,
and display corresponding temperature safety stops and faults of the thermo-bulb simultaneously.
2. When the thermo-bulb is detected in open circuit continuously for 30 seconds: stop the machine in protection,
directly display corresponding faults of the thermo-bulb.
6. Forced Running Function of the Inner Units
(It is refrigerants reclaiming function which is used for the condition that refrigerants cannot be reclaimed by
cooling operation in the season with low temperature.)
(1) Enter into Forced Running Control
Within 5 minutes after power-up, press the Lights Off button on the remote controller continuously for three
times within 3 seconds to enter into the fluorine collecting mode, and display Fo, send the fluorine-collecting
mode for 25 minutes continuously, each load will be treated as cooling when starting the machine (set the air flow
as High, set the temperature as 16 ).
(2) Exit from the Forced Running Control
After receiving any remote signal, or signal of keys, the fluorine-collecting mode will exit, and operate in
accordance with the current orders set; or exit the fluorine-collecting mode after running for 25 minutes, and the
machine will be shut down automatically.
Outdoor Units
1. Input Parameter Compensation and Calibration
(1) Check the ambient temperature compensation function
Indoor ambient temperature compensation function
a. In cooling mode, the indoor ambient temperature participating in computing control = (Tindoor ambient temperature –
Tcooling indoor ambient temperature compensation)
b. In heating mode, the indoor ambient temperature participating in computing control= (Tindoor ambient temperature –
Theating indoor ambient temperature compensation)
(2) Check effective judgment controls of parameters
Effective judgment function of the outdoor exhaust temperature thermo-bulb
When conditions a and b are satisfied, the outdoor exhaust temperature thermo-bulb is judged not to be
connected into place, the mainboard of outer units will display failure of the outdoor exhaust temperature
thermo-bulb (not connected into place), stop the machine for repairing, and resume the machine by remote
controls of ON/OFF.
a. Judgment of exhaust detection temperature change:
After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and the rising
value Texhaust (Texhaust (after start-up for 10 minutes) - Texhaust (before start-up)) < 2 , the outdoor exhaust temperature
thermo-bulb can be judged not to be connected into place (judging once when the power is on the first time).
b. Comparative judgment of exhaust detection temperature and condenser detection temperature (Tpipe temperature
= Toutdoor pipe temperature in cooling mode, Tpipe temperature = Tindoor pipe temperature in heating mode):
After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and Tpipe temperature ≥
(Texhaust + 3 ), the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place
(judging once when power is on the first time).
29
Function and Control
6.4 Functions of Outdoor Unit
1. Input Parameter Compensation
(1) Input parameter compensation function
As the structure feature of split unit, concerning the comfort, in heating mode, when compressor stops, the indoor ambient
temperature is higher than preset temperature for 3 ℃.
2. Check parameters to effectively make judgment and control
Insert the outdoor discharge temp sensor into corresponding temp sensor jacket of discharge pipe in order to protect safe and
reliable operation of the unit, so that the control system can accurately detect the discharge temp as well as effectively control
and protect it. Otherwise, the unit will stop and display the trouble of “outdoor discharge temp sensor failure ( not be inserted
correctly)” which can be recovered by pressing ON/OFF button.
3. Cooling Mode
3.1 Conditions and processes of cooling operation:
3.1.1 If the compressor stops, and [Tpreset – (Tindoor ambient – ΔTcooling indoor ambient temperature compensation)] ≤0.5 ℃,
start up the unit for cooling operation;
3.1.2 During cooling operation, if 0℃ ≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)]< 2℃,
keep the cooling operation;
3.1.3 During cooling operation, if 2℃ ≤ [Tpreset – (Tindoor ambient –ΔTcooling indoor ambient temperature compensation)], the
cooling operation will stop after reaching to the setting temperature.
3.2 Temperature setting range
3.2.1 If Toutdoor ambient ≥ [Tlow-temperature cooling], the temperature can be set at: 16~30℃ (Cooling at roomemperature);
3.2.2 If Toutdoor ambient < [Tlow-temperature cooling], the temperature can be set at: 25~30℃ (Cooling at low temperature),
that is, the minimum setting temperature to be judged by outdoor unit is 25℃.
4. Dry Mode
4.1 Conditions and processes of dry operation: same as the cooling mode;
4.2 The temperature setting range is: 16~30℃;
5. Fan Mode
5.1 The compressor, outdoor fan and four-way valve are switched off;
5.2 The temperature setting range is: 16~30℃.
6. Heating Mode
6.1. Conditions and processes of heating operation: (Tindoor ambient is the actual detection temperature of indoor
environment temp sensor, ΔTheating indoor ambient temperature compensation is the indoor ambient temperature compensation
during heating operation)
6.1.1 If the compressor stops, and [(Tindoor ambient –ΔTheating indoor ambient temperature compensation) –Tpreset]≤ 0.5℃,
start the unit to enter into heating operation;
6.1.2 During heating operation, if 0℃ ≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset] < 2℃,
keep the heating operation;
6.1.3 During heating operation, if 2℃ ≤ [(Tindoor ambient –ΔTheating indoor ambient temperature compensation)–Tpreset], the
heating operation will stop after reaching the setting temperature.
6.2 The temperature setting range in this mode is: 16~30℃.
7. Defrosting Control (heating)
7.1 After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied for continuous 3minutes, the
defrosting operation will start.
7.2 Start defrosting: Compressor stops and starts up 55S later;
7.3 Finish of Defrosting: Compressor stops and starts up 55S later;
7.4 The defrosting operation can exit when any of the conditions below is satisfied:
7.4.1 Toutdoor pipe≥ 12℃;
7.4.2 Toutdoor ambient<-5℃, and the Toutdoor pipe≥ 6℃ last more than 80S;
7.4.3The continuous running time of defrosting reaches.
8. Compressor Control
8.1. The frequency of compressor will be controlled according to the relationship of ambient temperature and preset temperature
as well as changing speed of ambient temperature;
8.2 Start the compressor after starting cooling, heating, dry operation, and the outdoor fan for 5s;
8.3 When the unit is off, in safety stops and switching to fan mode, the compressor will stop immediately;
8.4 In all modes: once the compressor starts up, it will not be allowed to stop within 7 min. (Note: except the cases that require
stop of the compressor such as fault protection, remote shutdown, mode switching etc.);
30
Function and Control
8.5 In all modes: once the compressor stops, it can’t restart within 3-minute (Note: The indoor units with memory function can be
restarted after remote shutdown and powering on again without delay).
9. Outdoor Fan Control
9.1 When the unit is off by remote control、in safety stops or stops after reaching the setting temperature, 1min later,the outdoor
fan will stop;
9.2 In fan mode: The outdoor fan stops;
9.3 Start of defrosting: Outdoor fan will stop after compressor stops for 50S;
9.4 Finish of defrosting: Outdoor fan will start up when the compressor stops.
10. 4-way valve control
10.1 The 4-way valve is off under the modes of Cooling, dry and fan;
10.2 In heating mode, the 4-way valve is energized;
10.3 When the unit is off in heating mode or heating mode shifts to other modes, the 4-way valve will be de-energized after
compressor stops for 2min;
10.4. After protection stops, the 4-way valve will be de-energized after 4min;
10.5 Start of defrosting: when entering defrosting mode, 4-way valve will be de-energized after the compressor stops for 50s;
10.6 Finish of defrosting: The 4-way valve will be energized after the compressor stops for 50s.
11. Anti-freezing protection
11.1 In cooling and dry mode, if Tindoor pipe<0 is detected for 3min continuously, the unit will stop; if 6℃ <Tindoor pipe, and
compressor has stopped for 3min, the unit will resume running;
11.2 In cooling and dry mode, if Tindoor pipe<6℃, running frequency of compressor will be decreased or stop increasing;
11.3 If the unit stops as anti-freezing protection for 6 times, it can not resume running automatically and display trouble code, it
can resume by pressing ON/OFF button. During operation, if the compressor operates for over 10min, the times of anti-freezing
protection stop will be cleared to zero. When the unit is off/ fan/ heating mode, the malfunction and malfunction times will be
cleared to zero. (If the malfunction can not be removed)
12. Overload protection
12.1 In cooling and dry mode: if 65℃ ≤Toutdoor pipe, the unit will stop; if Toutdoor pipe<55℃, and compressor has stopped for
3min, the unit will resume running;
12.2 In cooling and dry mode: if 55℃≤Toutdoor pipe, running frequency of compressor will be decreased or stop increasing;
12.3 In heating mode: if 64 ℃≤Tindoor pipe, the unit will stop; if Tindoor pipe<54℃, and compressor has stopped for 3min, the
unit will resume running;
12.4 In heating mode: if 54℃ ≤Tindoor pipe, running frequency of compressor will be decreased or stop increasing;
12.5 If the unit stops as overload protection for 6 times, it can not resume running automatically and display malfunction. It can
resume running by pressing ON/OFF.During operation, if the compressor has operated for over 10 min, the times of overload
protection stop will be cleared to zero. When the unit is off or in Fan mode or shifts to heating mode, the malfunction and
malfunction times will be cleared to zero immediately. (If the malfunction can not be removed)
13. Compressor discharge temperature protection
13.1 If 115 ℃≤Tdischarge, the unit will stop; if Tdischarge<97 ℃, and compressor has stopped for 3min, the unit will resume
running;
13.2 If 97 ℃≤Tdischarge, running frequency of compressor will be decreased or stop increasing;
13.3 If the unit stops as protection of compressor discharge temperature for 6 times, it can not resume running
automatically and malfunction will be displayed. It can resume running by pressing ON/OFF. During operation, if the compressor
has operated for over 10min, the time of compressor discharge temperature stop will be cleared to zero.When the unit is off/
shifts to fan mode, the malfunction and malfunction times will be cleared. (If the malfunction can not be removed)
14. Current protection
14.1. If 12A≤I alternating-current, running frequency of compressor will be decreased or stop increasing;
14.2. If 17A≤I alternating-current, the unit will stop; and after compressor has stopped for 3min, the unit will resume running;
14.3 If the unit stops as protection for compressor discharge temperature for 6 times, it can not resume running automatically
and malfunction will be displayed. It can resume by pressing ON/OFF button. During operation, if the compressor has operated
for over 10 min, the time of compressor discharge temperature stop will be cleared to zero.
15. Drop off voltage
During compressor operation, the system will stop and malfunction of drop off voltage will occur if voltage downward fluctuates
rapidly, and it will re-start up automatically 3min later.
31
Function and Control
16. Communication malfunction
If the unit does not receive correct signal from indoor unit for 3min continuously, the unit will stop as communication malfunction
protection; if communication malfunction has removed and compressor has stopped for 3min, the unit will resume running.
17. IPM module protection
When the compressor starts, if there is overcurrent or low control voltage for IPM module due to some abnormal results, IPM will
detect module protection signal as the unit is on. Once the module protective signal is detected, stop the unit with module
protection immediately. If the module protection is removed and compressor has stopped for 3min, the unit will be allowed to
operate.If the module protection continuously occurs for three times, it can not be removed automatically, and you should press
the ON/OFF button to resume operation. If the running time of compressor exceeds 10 min, the module protection times will be
cleared.
18. Module overheating protection
18.1 If 80 ℃ ≤Tmodule, running frequency of compressor will be decreased or stop increasing;
18.2.If 95 ℃ ≤Tmodule, the unit will stop; if Tmodule<87℃, and compressor has stopped for 3min, the unit will resume running;
18.3 If the unit stops as module overheating protection occurs for 6 times, it can not resume running automatically and
malfunction will be displayed, it can resume by pressing ON/OFF. During operation, if the time exceeds compressor running time,
the time of module overheating protection stop will be cleared. When the unit is off or shifts to fan mode,the malfunction and
malfunction times will be cleared. (If the malfunction can not be removed).
19 Compressor overload protection
19.1 If detect that the overload switch breaks within continuous 3S, the system will stop as protection;
19.2 If detect that the protection has removed and the compressor has stopped for 3min, the unit will be allowed to operate.
19.3 If the unit stops as compressor overload protection occurred for 3 times continuously, it can not resume running
automatically and malfunction will be displayed.
It can resume operation by pressing ON/OFF button; and the times of compressor overload protection will be cleared after the
compressor has run for 30min.
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Installation Manual
7. Installation Manual
7.1 Important Notices
1.The unit installation work must be done by qualified personnel according to the local rules and this manual.
2.Before installating, please contact with local authorized maintenance center, if unit is not installed by the
authorized maintenance center, the malfunction may not solved,due to discommodious contacts.
3.When removing the unit to the other place, please firstly contact with the authorized Maintenance Center
in the local area.
Basic Requirements For Installation Position
Install in the following place may cause malfunction. If it is unavoidable contact with service center please:
● Place where strong heat sources, vapors, flammable gas or volatile objuct are emitted.
● Place where high-frequency waves are generated by radio equipment, welders and medical equipment.
● Place where a lot of salinities such as coast exists.
● Place where the oil (machine oil) is contained in the air.
● Place where a sulfured gas such as the hot spring zones is generated.
● Other place with special circumstance.
Indoor Unit Installation Position Selection
1.The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through
the whole room.
2.Select a position where the condensing water can be easily drained out, and the place is easily connected
for outdoor unit.
3.Select a location where the children can not reach.
4.Can select the place where is strong enough to withstand the full weight and vibration of the unit. And will
not increase the noise.
5.Be sure to leave enough space to allow access for routine maintenance. The height of the installed location
should be 250cm or more from the floor .
6.Select a place about 1m or more away from TVset or any other electric appliances.
7.Select a place where the filter can be easily taken out.
8.Make sure that the indoor unit installation should accord with installation dimension diagram requirements.
9.Do not use the unit in the immediate surroundings of a laundry a bath a shower or a swimming pool.
Outdoor Unit Installation Position Selection
1.Select a location from which noise and outflow air emitted by unit will not inconvenience neighbors,
animals, plants.
2.Select a location where there should be sufficient ventilation.
3.Select a location where there should be no obstructions cover the inlet and outlet vent.
4.The location should be able to withstand the full weight and vibration of the outdoor unit and permit safe
installation.
5.Select a dry place, but do not expose under the direct sunlight or strong wind.
6.Make sure that the outdoor unit installation dimension should accord with installation dimension diagram,
convenient for maintenance, repair.
7.The height difference of connecting the tubing within 15m, the length of connecting the tubing within 30m.
8.Select a place where it is out of reach for the children.
9.Select a place where will not block the passage and do not influence the city appearance.
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Installation Manual
Safety Requirements For Electric Appliances
1. The power supply should be used the rated voltage and AC exc lusive circuit,the power cable diameter
should be satisfied.
2.Don't drag the power cable emphatically.
3.It should be reliably earthed,the installation work should be operatedbythe professional. The air switch must
have the functions of magnetic tripping and heat tripping, in order to protect the short circuit and overloading.
4. The min. distance from the unit and combustive surface is 1.5m.
5. The appliance shall be installed in accordance with national wiring regulations.
6.An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected
in fixed wiring.
Note:
Make sure that the Live wire or Zero line as well as the earth wire in the family power socket can not be
wrong connected, there should be reliable and no short circuit in the diagram.
Wrong connection may cause fire.
Earthing requirements
1. Air conditioner is type I electric appliance, thus please do conduct reliable earthing measure.
2. The yellow-green two-color wire in air conditioner is earthing wire and cannot be used for other propose.
It cannot be cut off and be fix it by screw, otherwise it would cause electric shock.
3. The earth resistance should accord to the National Criterion
4. The user power must offer the reliable earthing terminal. Please don't connect the earthing wire with the
following place:
ķTap water pipe
ĸGas pipe
Ĺ Contamination pipe
ĺ Other places that professional personnel consider them unreliable
5.The model and rating values for fuses according the silk print on fuse cover or related PCB board.
Other
1.The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the
copper tube.
2. 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 aperson responsible for their safety.
3. Children should be supervised that they do not play with the appliance.
34
Installation Manual
7.2 Install indoor unit
Install the rear panel
1.Always mount the rear panel horizontally. Due to the water tray of indoor unit has been adopted the
both-way drainage design, the outlet of water tray should be adjusted slightly down when installing, that is
taking the outlet of the water tray as the center of a circle, the included angle between the evaporator and
level should be 0 or more, that is good for condensing water drainage.
Wall
2.Fix the rear panel on the wall with screws. Wall
Mark on the middle of it
Gradienter
Space
Space
(Where is pre-covered with plastic granula)
3.Be sure that the rear panel has been fixed
firmly enough to withstand the weight of an
adult of 60kg, further more, the weight should
be evenly shared by each screw.
to the
wall
150mm
above
to the
wall
150mm
above
Right
Left
Ф55mm
Ф55mm
Fig.5
(Rear piping hole)
(Rear piping hole)
Install the piping hole
Indoor
1.Make the piping hole (Ф55) in the wall at a slight downward slant to the
outdoor side.
Wall pipe
2.Insert the piping-hole sleeve into the hole to prevent the connection piping
and wiring from being damaged when passing through the hole.
Outdoor
Seal pad
Ф55
Install the water drainage pipe
1.For well draining, the drain hose should be placed at a downward slant.
Wrenched
Bent
2.Do not wrench or bend the drain hose or flood its end by water.
3.When the long drainage hose passing through indoor,
should wrap the insulation materials.
Flooded
Connect indoor and outdoor electric wires
1.Open the surface panel.
2.Remove the wiring cover (Fig.6).
3.Route the power connection cord from the back of the indoor unit and pull it toward the front
through the wiring hole for connection.
4.Reassemble the clampand wiring cover.
5.Recover the surface panel.
Heat pump type
Wiring Cover
blue
yellowgree
black
brown
Connection wire
Fig.6
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Installation Manual
NOTE:
When connecting the electric wire if the wire length is not enough, please contact with
the authorized service shop to buy a exclusive electric wire that is long enough and the
joint on the wire are not allowed.
ƽThe
electric wiring must be correctly connected, wrong connection may cause spare parts
malfunction.
ƽTighten the terminal screw in order to prevent loose.
ƽAfter tighten the screw, slight pull the wire and confirm whether is it firm or not.
ƽIf
the earth wire is wrong connection, that may cause electric shock.
ƽThe
cover plate must be fixed, and tighten the connection wire, if it is poor installed, that
the dust, moisture may enter in or the connection terminal will be affected by outside force,
and will cause fire or electric shock.
Install the indoor unit
Gas side pipe
ƽThe
piping can be lead out from right, right rear, left
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 in necessary(Show in Fig.7)
Ł Cut off the tailings 1 when routing the wiring only;
ł 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
electric wire, water pipe with tape and pull them
through the piping hole (As show in Fig.8)
3. Hange the mounting slots of the indoor unit on the
upper tabs of the rear panel and check if it is firm
enough.(As show in Fig.9)
4. The height of the installed location should be 2.5m
or more from the floor.
Tailing 2
Tailing 1
Fig.7
External connection
electric wire
Liquid side piping
Gas side piping
insulation
Liquid side
Piping insulation
Finally wrap it Water drainage pipe
with tape
Left
েৢ
Left rear
Right
Right rear
Fixing hook
Mounting
plate
Fig.8
Mounting
baord
Fig.9
Install the connection pipe
1. Align the center of the piping flare with the relevant valve.
2. Screw in the flare nut by hand and then tighten the
nut with spanner and torque wrench refer to the
following:
Hex nut diameter
Ф6
Ф 9.52
Ф 12
Ф 16
Ф 19
Tightening torque (N ·m)
15̚20
31̚35
50̚55
60̚65
70̚75
Indoor unit piping
Spanner
Taper nut Piping
Torque
wrench
NOTE: Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention
to the piping bending, do not damage the connection pipe; the joint nut couldn't tighten too
much, otherwise it may cause leakage.
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Installation Manual
7.3 Install of Outdoor Unit
El ectric wiring
1. Disassemble the handle on the outdoor unit right side plate.
2 .Take off wire clamp. Connect and fix power connect cord to terminal of line bank. Wiring
should fit that of indoor unit.
3. Fix the power connection cable and power cord with wire clamp,(for cooling and heating
unit, use the wire clamp to fix the power connection cable and the signal control wire),
then connect the corresponding connector.
4. Ensure wire has been fixed well.
Power
G
5. Install the handle.
Handle
Power cord
Power connection wire
NOTE:
● Wrong wiring may cause spare parts malfunction.
● After the cable fixed, make sure there should be a free space between the connection
and connection and fixing place on the lead wire.
37
Installation Manual
Air purging and leakage test
1. Connect charging hose of manifold valve to charge end of low pressure
Manifold Valve
valve (both high/low pressure valves must be tightly shut).
Multimeter
Manometer
2. Connect joint of charging hose to vacuum pump.
-76cmHg
3. Fully open handle handle of Lo manifold valve.
Hi handle
Lo Handle
4. Open the vacuum pump to evacuate. At the beginning, slightly
loosen joint nut of low pressure valve to check if there
is air coming inside. (If noise of vacuum pump has
Charging hose
been changed, the reading of multimeter is 0) Then
tighten the nut.
Low pressure valve
5. Keep evacuating for more than 15mins and make
sure the reading of multi-meter is -1.0X105 pa
Vacuum pump
(-76cmHg) .
6. Fully open high/low pressure valves.
7. Remove charging hose from charging end of low pressure valve.
8. Tighten bonnet of low-pressure valve. (As shown in Fig.10)
Fig.10
Condensate drainage of outdoor unit (no for cooling only)
The condensate and defrosting water formd during heating
in the outdoor unit can be properly discharged by drainage
pipe .
Installation method:set the drain connection in Ф25 hole of the
chassis has been installed and then connect drainage pipe
with drain nozzle,so that condensate and defrosting waer can
be properly discharged
38
Drain
connection
Chassis
Drainage
Plug
Exploded Views and Parts list
8. Exploded Views and Parts List
8.1 Indoor Unit
Models GWC18AC-D3DNA1B/I GWH18AC-D3DNA1B/I
8
9
10
11
12
13
14
15
16
17
18
19
20
7
6
21
22
5
23
24
4
25
3
26
27
2
28
29
1
FA N
MODE
I FEEL
CLOC K
41
40
30
TIMER
ON
X-FA N
TEMP
TIMER
OFF
TURBO
SLEEP
LIGH T
39
38
37 36
35
34
33
32
31
39
Exploded Views and Parts list
Description
NO.
Part Code
GWC18AC-D3DNA1B/I
GWH18AC-D3DNA1B/I
CB115N0420
CB115N0430
1
2
Display Cover
Front Panel Assy
20122042
2001201213
20122042
2001201213
1
1
3
Filter Sub-Assy
11124096
11124096
2
4
Screw Cover
24252017
24252017
3
5
Front Case Assy
20012011
20012011
1
6
Evaporator Support
24212109
24212109
1
7
Evaporator Assy
0100291201
0100291201
1
8
9
Guide Louver
Lef Axile Bush
10514096
10542704
10514096
10542704
1
1
10
Rear Grill
01472019
01472019
1
11
Louver Clamp
26112127
26112127
5
12
Air Louver(manual)
10512097
10512097
2
13
Swing lever
10584085
10584085
1
14
Water Tray Assy
2018210510
2018210510
1
15
16
Drainage hose
O-Gasket sub-assy of Bearing
0523001406
76512051
0523001406
76512051
1
1
17
Cross Flow Fan
10352016
10352016
1
18
Swing blade (Round hole)
10512099
10512099
8
19
Rear Case assy
22202139
22202139
1
20
Wall Mounting Frame
01252218
01252218
1
21
Pipe Clamp
26114095
26114095
1
22
23
Axile Bush
Rubber Plug (Water Tray)
10542008
76712012
10542008
76712012
2
1
24
Fan Motor
15012718
15012718
1
25
Motor Press Plate
26114094
26114094
1
26
Capacitor CBB61
33010002
33010002
1
27
Step Motor
15012086
15012086
1
28
Crank
10582070
10582070
1
29
30
Display Board
Tube Sensor
30565002
390000591
30565002
390000591
1
1
31
Ambient Temperature Sensor
390000451
390000451
1
32
Electric Box
2011210001
2011210001
1
33
Electric Box Assy
2020219602
20202196
1
34
Main Board
30138178
30138177
1
35
Jumper
4202300112
4202300112
1
36
37
Terminal Board
Display Box
42011233
20122041
42011233
20122041
1
1
38
Electric Box Cover1
2011400801
2011400801
1
39
Shield cover of Electric Box
01412010
01412010
1
40
Remote Controller
305100501
305100501
1
41
Electric Box Cover2
2011400904P
2011400904P
1
The above data are subject to change without notice.
40
Qty
Product Code
Exploded Views and Parts list
Models GWC24AC-D3DNA1B/I GWH24AC-D3DNA1B/I
12 13 14
15 16 17
18 19
20
21
22
23
24 25
26
27
11
10
9
8
7
6
28
29
5
30
4
3
31
2
32
33
1
FA N
34
MODE
I FEEL
CLOC K
TIMER
ON
X-FA N
TEMP
TIMER
OFF
TURBO
SLEEP
LIGH T
35
36
43
42
41
40
39
38
37
41
Exploded Views and Parts list
Des cription
NO.
Part Code
GWC24AC-D3DNA1B/I
GWH24AC-D3DNA1B/I
Product Code
1
Front Panel As s y
2
Screw Cover
3
Filter Sub-As s y
4
Front Cas e As s y
5
Evaporator Support
CB115N0440
CB115N0450
2001207105
2001207105
1
24252017
24252017
4
11124097
11124097
2
2001207001
2001207001
1
24214081
24214082
1
1
6
Evaporator As s y
01002567
01002567
7
Left Axile Bus h
10542704
10542704
1
8
Guide Louver
10512153
10512153
10542008
01472020
1
9
Axile Bus h
10542008
10
11
Rear Grill
Louver Clam p
01472020
26112158
26112158
2
6
12
Bearing Holder s ub-as s y
26152028
26152028
1
2
13
Swing lever
10584086
10584086
2
14
O-Gas ket s ub-as s y of Bearing
76512051
76512051
1
15
Cros s Flow Fan 1
10354002
10354002
1
10
10512099
10512099
0523001403
0523001403
1
Rear Cas e as s y
22202096
22202096
1
19
Cros s Flow Fan 2
10354003
10354003
1
16
Swing blade (Round hole)
17
Drainage hos e
18
20
Rubber Plug (Water Tray)
76712012
76712012
1
21
Wall Mounting Fram e
01252229
01252229
1
22
Water Tray As s y
2018211106
2018211106
26112156
1
23
Pipe Clam p
26112156
24
25
Crank
Step Motor
10582070
1521300101
1521300101
1
1
26
Fan Motor
1501209801
1501209801
1
27
Motor Pres s Plate
26112182
26112182
1
28
Air Louver(m anual)
10512097
10512097
2
29
Electric Box As s y
2020219603
2020219601
1
10582070
1
30
Am bient Tem perature Sens or
390000451
390000451
1
31
Tube Sens or
390000591
390000591
1
32
Electric Box
2011210001
2011210001
1
1
33
Main Board
30138182
30138181
34
Term inal Board
42011233
42011233
1
35
Jum per
4202300113
4202300113
1
1
1
36
Dis play Board
30565002
30565002
37
Dis play Box
20122041
38
39
Electric Box Cover1
Shield cover of Electric Box
20122041
2011400801
2011400801
01412010
01412010
1
1
40
Rem ote Controller
305100501
305100501
1
41
Electric Box Cover2
2011400904P
2011400904P
1
42
Dis play Cover
20122042
20122042
1
24212094
24212094
1
43
s tay bar s ub-as s y
The above data are subject to change without notice.
42
Qty
Exploded Views and Parts list
Model GWH18AC-D3DNA2B/I
7
8
9
10
11 12
13
14 15
16
17
18
19
6
5
4
20
21
22
3
23
2
24
25
26
1
27
28
FA N
MODE
29
I F EEL
C LOC K
TIMER
ON
X- FA N
T EMP
T URBO
40
39
TIMER
OFF
LIGH T
SLEEP
38 37 36 35 34
33
32
31
30
43
Exploded Views and Parts list
Description
NO.
GWH18AC-D3DNA2B/I
Qty
Product Code
CB115N0470
1
Front Panel Assy
2001209804
1
2
Filter Sub-Assy
11124096
2
3
Screw Cover
24252017
3
4
Front Case Assy
20012011
1
5
Evaporator Support
24212109
1
6
Evaporator Assy
0100258401
1
7
Guide Louver
1051409605P
1
8
Axile Bush
10542008
2
9
Rear Grill
'01472019
1
10
Louver Clamp
26112127
5
11
Air Louver(manual)
10512097
2
12
Swing lever
10584085
1
13
Water Tray Assy
2018210510
1
14
Drainage hose
0523001406
1
15
O-Gasket sub-assy of Bearing
76512051
1
16
Cross Flow Fan
10352016
1
17
Swing blade (Round hole)
10512099
8
18
Rear Case assy
22202139
1
19
Wall Mounting Frame
01252218
1
20
Pipe Clamp
26114095
1
21
Axile Bush
10542704
1
22
Rubber Plug (Water Tray)
76712012
1
23
Fan Motor
15012718
1
24
Motor Press Plate
26114094
1
25
Capacitor CBB61
33010002
1
26
Step Motor
15012086
1
27
Crank
10582070
1
28
Display Board
30545053
1
29
Tube Sensor
390000591
1
30
Ambient Temperature Sensor
390000451
1
31
Electric Box
2011210001
1
32
Electric Box Assy
2020219604
1
33
Main Board
30138177
1
34
Jumper
4202300112
1
35
Terminal Board
42011233
1
36
Display Cover 2
20122058
1
37
Electric Box Cover1
38
Shield cover of Electric Box
39
40
2011400801
1
01412010
1
Remote Controller
30510050
1
Electric Box Cover2
2011400904P
1
The above data are subject to change without notice.
44
Part Code
Exploded Views and Parts list
Model GWH24AC-D3DNA2B/I
12 13 14
15 16 17 18 19
20
21
22
23
24 25
26
27
11
10
9
8
7
6
28
5
29
30
4
3
31
2
32
33
1
FA N
34
MODE
I FEEL
CLOC K
TIMER
ON
X-FA N
TEMP
TIMER
OFF
TURBO
SLEEP
LIGH T
41
40
39
38
35
36
37
45
Exploded Views and Parts list
Description
NO.
GWH24AC-D3DNA2B/I
Qty
Product Code
CB115N0490
1
Front Panel Assy
2001214801
1
2
Screw Cover
24252017
4
3
Filter Sub-Assy
4
Front Case Assy
5
11124097
2
2001207001
1
Evaporator Support sub-assy
24214082
1
6
Evaporator Assy
01002567
1
7
Axile Bush
10542704
1
8
Guide Louver
1051215304P
1
9
Axile Bush
10542008
2
10
Rear Grill
01472021
2
11
Louver Clamp
26112158
6
12
Bearing Holder sub-assy
26152028
1
13
O-Gasket sub-assy of Bearing
76512051
1
14
Swing lever
10584086
2
15
Cross Flow Fan 1
10354002
1
16
Swing blade (Round hole)
10512099
10
17
Drainage hose
18
Rear Case assy
19
Cross Flow Fan 2
10354003
1
20
Rubber Plug (Water Tray)
76712012
1
21
Wall Mounting Frame
22
Water Tray Assy
23
Pipe Clamp
0523001403
1
22202096
1
01252229
1
2018211106
1
26112156
1
24
Crank
10582070
1
25
Step Motor
1521300101
1
26
Fan Motor
1501209801
1
27
Motor Press Plate
26112182
1
28
Air Louver(manual)
10512097
2
29
Electric Box Assy
2020219605
1
30
Ambient Temperature Sensor
390000451
1
31
Tube Sensor
390000591
1
32
Electric Box
2011210001
1
33
Main Board
30138181
1
34
Terminal Board
42011233
1
35
Jumper
4202300113
1
36
Display Board
30545053
1
37
Display Cover 2
38
Electric Box Cover1
39
Shield cover of Electric Box
40
41
20122058
1
2011400801
1
01412010
1
Remote Controller
30510050
1
Electric Box Cover2
2011400904P
1
The above data are subject to change without notice.
46
Part Code
Exploded Views and Parts list
8.2 Outdoor Unit
Model GWC18AC-D3DNA1B/O
10
9
11
12
13
14 15 16
17
18
19
20
8
7
6
5
4
3
2
21
22
1
23
24
25
36
35
34 33 32 31 30 29 28 27
26
47
Exploded Views and Parts list
Des cription
NO.
Product Code
Qty
CB115W0420
1
Rear Grill
01473043
1
2
Fan Motor
15015064
1
3
Electric box (fireproofing)
01413148
1
4
Term inal Board
42010255
1
5
Electric Box
20113008
1
6
Radiator
49013024
1
7
Main Board
30138166
8
Electric Box Cover Sub-As s y
02603217
1
9
Electric Box Ass y
10
left handle
11
Left Side Plate
12
Motor Support Sub-As sy
01705020
1
13
Supporting board(condenser)
01795010
1
14
Top Cover
01255005P
1
15
Reactor
43130021
1
16
Clapboard Sub-Ass y
17
Condenser As s y
18
Front Grill
01473049
1
19
Wiring clam p
26115004
1
20
Temperature Sens or
3900030901
1
21
Capacitor CBB65
33000065
1
0260306604
1
26235401
1
01305041P
1
01232902
1
0111338601
1
22
Capacitor Clam p s ub-as sy
01413098
1
23
Electric expand valve fitting
4300876704
1
24
handle As s y
02113109
1
25
Cut-off Valve
07130239
1
26
Valve cover
22245002
1
27
Cut-off valve Sub-Ass y
28
Valve s upport as s y
07133060
1
01715010P
1
29
Right Side Plate
0130505303P
1
30
Electronic Expans ion Valve
07133183
1
31
Inhalation Tube Sub-As s y
03733084
1
32
Dis charge Tube Sub-As sy
03733083
1
33
Com pres sor and fittings
34
Chass is Sub-as sy
35
Axial Flow Fan
36
Cabinet
The above data are subject to change without notice.
48
Part Code
GWC18AC-D3DNA1B/O
00103501
1
0120371401P
1
10335008
1
01433047P
1
Exploded Views and Parts list
Model GWH18AC-D3DNA1B/O
9
10
11
12
13 14
15 16
17
18
19
20
8
7
6
5
4
3
21
22
2
23
1
24
25
38
37
36
35 34 33 32 31 30 29 28 27
26
49
Exploded Views and Parts list
Des cription
NO.
Product Code
Qty
CB115W0430
1
Rear Grill
01473043
1
2
Fan Motor
15015064
1
3
Electric box (fireproofing)
01413148
1
4
Term inal Board
42010255
1
5
Electric Box
20113008
1
6
Radiator
49013024
1
7
Main Board
30138167
1
8
Electric Box Cover Sub-As s y
02603217
1
0260306605
1
26235401
1
9
Electric Box Ass y
10
left handle
11
Left Side Plate
01305041P
1
12
Motor Support Sub-As sy
01705020
1
13
Supporting board(condenser)
01795010
1
14
Top Cover
01255005P
1
15
Reactor
43130021
1
16
Clapboard Sub-Ass y
01232902
1
17
Condenser As s y
01113386
1
18
Front Grill
01473049
1
19
Wiring clam p
26115004
1
20
Temperature Sens or
3900030901
1
21
Capacitor CBB65
33000065
1
22
Capacitor Clam p s ub-as sy
01413098
1
23
Electric expand valve fitting
4300876704
1
24
Handle as s y
02113109
1
25
Cut-off valve Sub-Ass y
07133058
1
26
Valve cover
22245002
1
27
Cut-off valve Sub-Ass y
07133060
1
28
Valve s upport as s y
29
Right Side Plate
30
Electronic Expans ion Valve
31
4-way Valve As sy
32
Magnet Coil
33
Com pres sor and fittings
34
Chass is Sub-as sy
01715010P
1
0130505303P
1
07133556
1
03123245
1
4300040045
1
00103501
1
0120371401P
1
35
Drainage Connecter
06123401
1
36
Drainage Plug
06813401
3
37
Axial Flow Fan
10335008
1
38
Cabinet
01433047P
1
The above data are subject to change without notice.
50
Part Code
GWH18AC-D3DNA1B/O
Exploded Views and Parts list
Model GWC24AC-D3DNA1B/O
8
9
10
11
12
13
14
15
16
17
18
19
7
6
5
4
3
20
2
21
1
22
23
24
37
36
35
34
33 32 31 30 29
28
27
26 25
51
Exploded Views and Parts list
Des cription
NO.
Product Code
Qty
CB115W0440
1
Rear Grill
01475013
1
2
Fan Motor
15014034
1
3
Electric box (fireproofing)
01413426
1
4
Electric Box
20113008
1
5
Radiator
49010252
1
6
Main Board
30138168
1
7
Electric Box Cover Sub-As s y
8
Electric Box Ass y
02603217
1
0260306610
1
9
Term inal Board Support Sub-As s y
01715016
1
10
Term inal Board
42010255
1
11
left handle
26235401
2
12
Left Side Plate
01305043P
1
13
Top Cover
01255006P
1
14
Motor Support Sub-As sy
01705025
1
15
Clapboard Sub-Ass y
01233110
1
16
Condenser As s y
01113487
1
17
Front Grill
01473050
1
18
Wiring clam p
19
Temperature Sens or
20
21
26115004
1
3900030901
1
Reactor
43130021
1
Capacitor CBB65
33000039
1
22
Right Side Plate
0130504402P
1
23
Handle as s y
02113109
1
24
Cut-off valve Sub-Ass y
07133603
1
25
Valve cover
22245003
1
26
Valve Support Sub-Ass y
0171501201P
1
27
Baffle (valve s upport)
01365435P
1
28
Cut-off Valve
07130239
1
29
Electronic Expans ion Valve
07133182
1
30
Electric expand valve fitting
4300876704
1
31
Dis charge Tube Sub-As sy
03733092
1
32
Inhalation Tube Sub-As s y
03733093
1
33
Com pres sor and fittings
34
Chass is Sub-as sy
35
Axial Flow Fan
36
Front Side Plate
37
Cabinet
The above data are subject to change without notice.
52
Part Code
GWC24AC-D3DNA1B/O
00103501
1
01203779P
1
10335005
1
01305072P
1
0143500401P
1
Exploded Views and Parts list
Model GWH24AC-D3DNA1B/O
8
9
10
11
12
13
14
15
16
17
18
19
7
6
5
4
3
2
1
20
21
22
23
24
39
38
37
36 35 34 33 32 31 30 29
28
27
26 25
53
Exploded Views and Parts list
Des cription
NO.
Product Code
Qty
CB115W0450
1
Rear Grill
01475013
1
2
Fan Motor
15014034
1
3
Electric box (fireproofing)
01413426
1
4
Electric Box
20113008
1
5
Radiator
49013024
1
6
Main Board
30138169
1
7
Electric Box Cover Sub-As s y
8
Electric Box Ass y
02603217
1
0260306611
1
9
Term inal Board Support Sub-As sy
01715016
1
10
Term inal Board
42010255
1
11
left handle
26235401
2
12
Left Side Plate
01305043P
1
13
Top Cover
01255006P
1
14
Motor Support Sub-As sy
01705025
1
15
Clapboard Sub-Ass y
01233110
1
16
Condenser As s y
01113446
1
17
Front Grill
01473050
1
18
Wiring clam p
19
Temperature Sens or
20
21
26115004
1
3900030901
1
Reactor
43130021
1
Capacitor CBB65
33000039
1
22
Right Side Plate
0130504402P
1
23
Handle As sy
02113109
1
24
Cut-off valve Sub-Ass y
07133603
1
25
Valve cover
22245003
1
26
Valve Support Sub-Ass y
0171501201P
1
27
Baffle (valve s upport)
01365435P
1
28
Cut-off Valve
07130239
1
29
Electronic Expans ion Valve
07133174
1
30
Electric expand valve fitting
4300876704
1
31
4-way Valve As sy
03123275
1
32
Magnet Coil
4300040045
1
33
Com pres sor and fittings
00103501
1
34
Drainage Connecter
06123401
1
35
Chass is Sub-as sy
01203779P
1
36
Drainage Plug
06813401
2
37
Axial Flow Fan
38
Front Side Plate
39
Cabinet
The above data are subject to change without notice.
54
Part Code
GWH24AC-D3DNA1B/O
10335005
1
01305072P
1
0143500401P
1
Troubleshooting
9. Troubleshooting
Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the
unit display C5
The breaker trips at once when it
Measure insulation resistance to
ground to see if there is any leakage.
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 breaker trips in few minutes
when it is set to "ON"
the insulation resistance or eliminate the malfunction one by one. If the breaker itself has
malfunction, then replace the breaker.
Air conditioner can not start up
No power
Check power supply circuit.
Power plug is not well plugged in and
poor connection
Check if the plug is properly plugged
in and make the loose contact firm.
The air conditioner
does not react after
it is powered ( after
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
the plug is inserted,
the buzzer does
not sound and the
remote startup has
no response)
Controller is broken
Check remote controller
Remote controller is short of power
Change batteries
The remote controller
does not receive
signals (after it is
Remote controller malfunction
powered, the buzzer
will sound, unless it
Receiver loose or poor connection
has malfunction)
Receiver is broken
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.
Power voltage is too low
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.
55
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
Malfunction of
refrigerant
flow
Leakage between the high pressure 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.
Check and fill the leakage, then
vacuumize it and supplement the refrigerant as required
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 measures
to 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
To set the fan speed to high or
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.
56
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
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.
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
Malfunction of compressor
When cooling or
heating, outdoor
fanruns,compressor doesn't run.
The compressor is
too hot and leads to
the action of the
protector.
Replace the fan motor or the defective part.
Replace 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.
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.
wrong connection
First, check whether the connection is wrong.
If no,replace the parts
The controller is damaged IC2003 is
damaged, the swing relay can not close,
etc
57
Troubleshooting
In cool, heat mode,
the outdoor unit and
compressor will not
run.
Controller malfunction (IC2003
broken,creepage of parallel capacitor
of relay loop,relay is broken etc.)
Change controller
Wire loose or wrong connection
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
enough.
Re-wrap and make it tight.
Fan of indoor unit contacts other parts.
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
Chan ge compressor
Water leakage
Abnormal sound
and shake
58
Troubleshooting
Appearance of Controller of Indoor Unit
Note: When replacing the controller, make sure insert the wire jumper into the new controller,
otherwise the unit display C5.
The PCB above is subject to change without notice.
59
Troubleshooting
• The key testing spots(BOTTOM)
Test Point
No.
Test 1
Test 2
Test 3
Test 4
Test Point
between two
points
between two
points
between two
points
between two
points
Relevant
Component
weak-current
power
weak-current
power
Test result under normal
conditions
N/L line
230VAC ±10%
N/L line
230VAC ±11%
The PCB above is subject to change without notice.
60
5V
12V
Troubleshooting
Key Test Point (Bottom)
Test4
Test9
Test2
Test3
C
Test
F
G
L
D
H
B
A
E
J
I
K
Test5
Test7
Test6
Tset8
Test10
Test11
GND
M
N
S
Q
R
Test14
Test15
O
P
Test12
Test13
T
Test16
61
Troubleshooting
Test Serial Test spot
No.
Test1
Between A and C
Test2
Between B and C
Test3
Between D and E
Test4
Between F and G
Test5
Diode D10 terminal
Test6
Capacitor
C56
terminal
Test7
Capacitor
C58
terminal
Test8
Capacitor
C83
terminal
Test9
Capacitor
C80
terminal
Test10
Between M and
Ground of the PCB
Test11
Between N and
Ground of the PCB
Test12
O
Test13
P
Test14
Q
Test15
R
Test16
62
Corresponding components
Power Supply L N
Power Supply L N
Test value under
circumstances
160V~265V
160V~265V
normal
Electrolytic Capacitor for DC-Bus
180VDC~380VDC
Electrolytic Capacitor for SMPS
180VDC~380VDC
Diode D10
Capacitor C56
14.5V~15.6VDC
12V~13VDC
C58
5VDC
C83
3.3VDC
C80
15~18VDC
-
Vibrate Between 0 and 3.3V
-
Vibrate Between 0 and 3.3V
Data Receive
Data Transmit
Data Transmit
Data Receive
Power for Communication
Circuit
Vibrate Between 0.3~1.7V
Vibrate Between 0~1.1V
Vibrate Between 0~1.1V
Vibrate Between 0~24V
56VDC
Troubleshooting
Appearance of Controller of Outdoor Unit (Top)
Appearance of Controller of Outdoor Unit (Bottom)
63
Troubleshooting
Malfunctions
Normally,diagnose troubles according to the trouble diagnosis procedure as described below.(Refer
to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)
No.
Troubleshooting procedure
1
Confirmation
2
Judgement by Flashing LED of Indoor/Outdoor Unit
3
How to Check simply the main part
NOTE:
A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the
power supply is turned off,charge(charging voltage DC280V to 380V)remains and disc harging takes
a lot of time.. After turning off the power source,if touching the charging section before discharging,
an electrical shock may be caused. Discharge the electrol ytic capacitor completely by using soldering
iron,etc.
<Discharging method>
(1) remove the inverter cover(Outdoor Unit)
Inverter cover
P.C.board
(Soldered surface)
(2) As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the sold ering
iron to voltage between + - terminals of the electrolytic capacitor (test3 “D ” and “E” point) on
PC Board for 30s, and then peformedischarging.
64
Troubleshooting
1.Confirmation
1 Confirmation of Power Supply
Confirm that the power breaker operates(ON) normally;
(2)Confirmation of Power Voltage
Confirm that power voltage is AC 220–230–240 ±10%. If power voltage is not in this range, the unit may not
operate normally.
2.Flashing LED of Indoor/Outdoor Unit and Primary Judgement
Indoor unit displaying method
Name of
NO. malfunction
Double
8 code
display
Indicator display(LED
blinks 0.5s-ON/0.5s
-OFF)
2
3
System high
pressure protection
Anti-freezing
protection
Compressor air
exhaust high temp.
protection
□ OFF ■ ON
AC status
Malfunctions
Blinks
Running
LED
1
Outdoor unit display
(LEDs have 3 status)
Cooling
LED
Heating
LED
D40 D41 D42 D43
/D5 /D6 /D16 /D30
3s off
blink once
cooling,dehumidifying,
except the indoor fam motor
is runnig,others will stop
to run.heating;all stop running
High pressure of system,might be:
1.Refrigerant is too much;
2.Poor heating exchanging for units
(including heat exchanger is dirty and
unit heating radiating ambient is poor);
3.Ambient temp.is too high.
E2
3s off
blink twice
cooling,dehumidifying,
compressor,outdoor fan
motor will stop running,
indoor fan motor will keep
running.
1.Poor indoor unit air returning;
2.Indoor fan motor rotating speed
abnormal;
3.Evaporator is dirty;
E4
3s off
blink four
times
E1
cooling,dehumidifying,
compressor,outdoor fan
motor will stop running,
indoor fan motor works.
heating:all stop running.
Pls refer to rtouble shoot (air
exhaust protection,overload)
65
Troubleshooting
66
Cooling,dehumidifying,compr
1.power supply is
essor,outdoor fan motor will stable,fluctuation is too much
stop,indoor fan will
2.Power supply is too
work.heating;all will stop
low,overload is too much.
4
AC overload
protection
Off 3s blink 5
times
E5
5
Indoor and outdoor
units communication
malfunction
E6
Off 3s blink 6
times
Cooling,compressor will
stop,indoor fan motor
works,Heating:all will stop
Please refer to
troubleshooting
6
Anti-high
temp.protection
E8
Off 3s blink 8
times
Cooling,compressor will
stop,indoor fan motor
works,Heating:all will stop
Please refer to
troubleshooting
7
Indoor unit motor no
feedback
H6
Off 3s blink 11
times
Whole unit will stop to run
1.Poor insert for GPF
2.Indoor control board AP1
malfunction 3.Indoor motor
M1 malfunction
8
Jump wire cap
malfunction
protection
C5
Off 3s blink 15
times
Whole unit will stop to run
Indoor control board AP1
jump cap poor
connected,please reinsert or
replace the jump cap.
9
Indoor ambient
sensor open
circuit,short circuit
F1
Off 3s blink
once
Cooling,dehumidifying:indoor
fan motor is runing,other
overloads will
stop;Heating,whole unit will
stop to run.
1.Room temp.sensor is not
connected with the control
panel AP1 2.Room
temp.sensor is damaged
10
Indoor evaporator
sensor ciruit
open,short circuit
F2
Off 3s blink
twice
Cooling,dehumidifying;indoor
fan motor runing,other
overload will
stop;Heating,whole unit will
stop.
1,Tube temp.sensor is not
connected with the conrtol
panel AP1 2.Tube
tmep.sensor is damaged
11
Outdoor ambient
sensor circuit
open,circuit short
F3
Off 3s blinks
three times
Outdoorroom temp.sensor
Cooling,dehumidifying;compr
hasn't connected well,or
essor will stop,indoor fan
damaged,please refer to the
motor will work.Heat:all will
sensor resistance value for
stop
checking.
12
Outdoor condemsor
sensor open
circuit,short circuit
F4
Off 3s blinks 4
times
Outdoorroom temp.sensor
Cooling,dehumidifying;compr
hasn't connected well,or
essor will stop,indoor fan
damaged,please refer to the
motor will work.Heat:all will
sensor resistance value for
stop
checking.
1.Exhaust temp sensor hasn't
connected well,or
damaged,plwease refer to
the sensor resistance value
for checking.
2.Sensor
head hasn't insert into the
copper tube.
13
Outdoor air exhaust
sensor open
circuit,short circuit
F5
Off 3s blinks 5
times
Cooling,dehumidifying;after
runing for 3mins later,the
compressor will stop to
run,indoor fan motor will start
to run.heating:after run 3 mins
later,all will stop to run.
14
Overload
limit/descending
frequency
F6
Off 3s blinks 6
times
Overload mormal
Please refer to
operation,compressor is
troubleshooting
runing,frequency descending
15
Over current need
frequency
descending
F8
Off 3s blinks 8
times
1.Input power supply is too
Overload mormal
low
operation,compressor is
2.System voltage is too
runing,frequency descending
high,over is too much
16
Air exhaust over high
need frequency
descending
F9
Off 3s blinks 9
times
1.Overload is too
much,ambient temp.is too
Overload mormal
high
operation,compressor is
2.Refrigerant is short
runing,frequency descending
3.Electric expansion
malfunction
17
DC generatrix
voltage
PH
Off 3s
Cooling,dehumidifying,compr 1.Testing wire terminal L and
essor stop running
N position
Troubleshooting
i s too hi gh
Bl i nk 11
times
If higher than 265VAC,
please cut off the power supply
and restart until back to normal
Fan motor works.
Heating: all will stop
Whole unit’s
18 current testing
malfunction
U5
Compressor
19 current overcurrent
protection
P5
20 Defrosting
H1
21
Electrostatic dedust
protection
H2
Off 3s
blink 13
times
□
Off 3s
blink 15
times
□
■
■
□
□
Off 3s
blink once
2. If input voltage is normal, testing
the voltage of electrolytic capacitor
on AP1 after turn on the unit.
There may be some problem and
replace the AP1 if the electrolytic
capacitor voltage range at 200-280V
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Please refer to troubleshooting
(IPM protection, compressor
lose steps, compressor current
overcurrent protection)
Under the heating mode,
It is normal
compressor running, indoor
function
The circuit on AP1 has
malfunction, replace the
outdoor unit AP1
/outdoorfan motor stop working
Off 3s
blink twice
1. Wire terminal OVCCOMP loosen or circuit,
Compressor
22 overload
protection
H3
Off 3s
blink 3
times
□
□
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
has problem, the resistance of
SAT should be lower than
1 ohm.
2.Please refer to troubleshooting
(exhaust/overload protection)
System
23
abnormal
H4
Off 3s
blink 4
times
24 IPM protection
H5
Off 3s
blink 5
times
■
□
25 PFC protection
HC
Off 3s
blink 6
times
□
■
Compressor
lose steps
H7
Off 3s
blink 7
times
□
27 Heating, anti-high
temp. declines
H0
Off 3s
blink 10 ■
times
28 Startsup
fail
Lc
Off 3s
blink 11
times
□
□
U1
Off 3s
blink 13
times
□
■
EEPROM
30
malfunction
EE
Off 3s
blink 15 □
times
□
□
■
Capacitor
31 charge
malfunction
PU
Off 3s
blink 17
times
□
■
□
■
P7
Off 3s
blink 18
times
□
□
■
P8
Off 3s
blink 19
times
26
Compressor
current
29 testing
circuit malfunction
32
Module sensor
circuit diagram
Module
temp.
33
over high
protection
■
■
■
■
Overload normal works,
compressor running,
frequency declines
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
□
□
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
□
■
Pls refer to troubleshooting
Pls refer to troubleshooting
Pls refer to troubleshooting
Pls refer to troubleshooting
Pls refer to troubleshooting
Pls refer to troubleshooting
Replace the outdoor control board AP1
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Cooling, dehumidifying;
compressor stops running,
indoor fan motor works.
Heating: all will stop
running
Replace the outdoor control board AP1
Pls refer to Part 3 capacitor charging
fault of troubleshooting
Replace the outdoor control board AP1
To check whether the ambient Temp. of
IPM is too high or the heat-sinhing of IPM
is dirty else replace the outdoor baord AP1
67
Troubleshooting
34 DC Bus voltage
dips
35
Low DC Bus voltage
protection
36
IPM temp.is too
high limit/decrease
frequency
37
Four-way valve
abnormal
Outdoor unit
38 zero-cross
U3
PL
EU
Off 3s
blink 20
times
Off 3s
blink 21
times
□
□
■
■
■
■
■
■
■
□
■
Anti-freezing
68
Fan module
protection
Cooling,dehumidifying;
compressor will stop,indoor
fan motor works.Heating:all
will stop.
1.Check the Input voltage if the Voltage
is lower than 150VAC,restart the
machine when the power supply is
mormal.
2.Checking the reactor L connection.
Over load normal works,
compressor runing frequency
declines
Whole unit break for 20 mins
and discharge,to check the outdoor
control board AP1’s IPM module
coolant whether is short,the radiator
is tightened.If above phenomenon
is not OK,Please improve or replace
the control board AP1
1.Power supply voltage is lower than
AC175V
2.Wire terminal 4V loosen or wire
break
3.4V damaged,replace 4V
U7
■
□
□
U9
■
■
□
Cooling:compressor will
stop,indoor fan motor works.
Heating:all will stop.
Replace the outdoor control board
AP1
FH
■
■
□
All loads work normally
but the running frequency
limited or decrease
Indoor unit air return is poor or
fan speed is to low.
□
Cooling:outdoor fan motor,
compressor stop running;
indoor fan works.
Heating:outdoor fan motor,
compressor,indoor fan motor
stop running.
1.The wire terminal of outdoor fan
motor is loosed,fix the terminal.
2.Motor damaged,replace the motor
3.Fan motor module on mainboard
is damaged;replace the mainboard
AP1
■
frequency
40
Power voltage is not stable
This malfunction happened,
only in heating mode,all will
stop to run.
detecting error
39 lImit/decrease
Cooling,dehumidifying
compressor will stop,indoor
fan motor works.Heating:all
will stop
L3
■
□
□
Troubleshooting
(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 (test3)
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
terminal L 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
Shut down the power and wait 20 minutes; or
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 L is normal?
N
Connect the reactor L
according to Electrical
Wiring Diagram
correctly
Re-energize and
turn on the unit
If the fault is eliminated?
Y
Y
Replace the control
panel AP1
N
End
69
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:
70
Troubleshooting
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
electrolytic
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.
Y
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
N
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.
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
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
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
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?
N
N
If the unit can
work
normally?
If the unit can
work
normally?
Y
Y
N
Replace the
control panel AP1
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.
If the unit can
work
normally?
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?
N
If the unit can
work
normally?
If the unit can
work
normally?
Y
N
Y
Replace the
compressor
COMP
N
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
71
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?
Overheat and high
temperature protection
Y
Is outdoor ambient temperature higher than 53?
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 control panel
Replace the fan
capacitor C1
AP1
Replace the
outdoor fan
End
72
Troubleshooting
(4) Start-up failure (following AP1 for outdoor unit control board)
Mainly detect:
Whether the compressor wiring is connected correct?
Is time for compressor stopping enough?
Is compressor broken?
Power on the unit
Is stop time of the compressor
longer than 3 minutes?
N
Restart it up after 3 minutes
Y
Does startup fail?
Y
Are the wires for the compressor connected
correctly? Is connection sequence right?
N
Connect the wires as per the
connection diagram
Y
Replace the control panel AP1
N
If the fault is eliminated?
N
Replace the
compressor
Y
End
73
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?
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
74
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?
20 minutes after the
complete unit is
powered off
Is the terminal FA for the
PMV
connected correctly?
N
Connect the
wires 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 PMV
If the fault is eliminated?
Replace the
control panel
AP1
If the fault is eliminated?
Coolant leakage, refilling
the coolant
End
75
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
The failure diagnosis process is as follows:
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.
N
Y
Is the resistance around zero?
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 ohmmeter
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
76
Troubleshooting
(8) Communication malfunction: (following AP1 for outdoor unit control board)
Mainly detect:
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?
Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged?
The flow chart for malfunction detect:
Start
Y
N
Did the equipment operate
normally before the failure
occurs?
Check wiring inside of
the indoor and outdoor
units
Y
Check the wiring of the indoor and
outdoor units with reference to the
wiring diagram
N
Is the connection right?
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 of
the indoor unit
Replace the main board
AP1 of the outdoor unit
If the fault is eliminated?
N
Y
Y
End
Y
77
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
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
78
End
Troubleshooting
Appendix 1: form for indoor/outdoor unit's ambient sensor numerical value of resistance
Temp.
Resistance
Temp.
Resistance
Temp.
Resistance
Temp.
Resistance
79
Troubleshooting
Appendix 2: form for indoor/outdoor unit's tube temperature sensor numerical value of resistance
Temp.
80
Resistance
Temp.
Resistance
Temp.
Resistance
Temp.
Resistance
Troubleshooting
Appendix 3: form for indoor/outdoor unit's air exhaust temperature sensor numerical value of resistance
Temp.
Resistance
Temp.
Resistance
Temp.
Resistance
Temp.
Resistance
Notice: The above information is only for reference.
81
Removal Procedure
10. Removal Procedure
10.1 Removal Procedure of Indoor Unit
1. Disassembly of front panel and filter
Open the front panel and draw it outward along the
groove which fixes the panel to remove it.
Push the filter upward to release it from the
bottom groove to remove the filter.
Front panel
Filter
2.
Disassembly of Horizontal Louver and Front Case
Bend the horizontal louver to release the clasp
of it and then remove it.
Unscrew the screws fixing the front case and
release the clasp on the back of the front
panel. Then remove the front case.
Screw
3. Disassembly of electric box cover
Remove screws on electric box cover and
the earth wire to remove the electric box cover.
Screw
Earth line
82
Removal Procedure
Screw
4. Disassembly of electric box
Remove earth wire of evaporator and then
remove the temp sensor.
Remove screws on both sides of electric
box to remove the electric box.
Earth line
Temp sensor
5. Disassembly of evaporator
Remove screws on both sides of evaporator
and take out the evaporator with caution.
Screw
Screw
83
Removal Procedure
6. Disassembly of motor
Remove screws on press board of motor to remove
the press board.Then Unscrew retaining screws on
right sleeve of cross flow fan and then remove the
motor and the fan blade.
Screw
84
Removal Procedure
10.2 Removal Procedure of Outdoor Unit(1)
Note: 18K, take heat pump unit for example
1. Disassembly of top cover
Unscrew retaining screw of the handle and then
push it downward to remove the handle.
Remove screws on top cover and then remove the cover.
Top cover
Handle
Screw
2. Disassembly of grill and right side plate
Remove screws of the grill and then remove the grill.
Remove screws on right side plate and support of
the valve. Then lift the right side plate to remove it.
right side plate
Grill
electric box
3. Disassembly of electric box
Remove screws on electric box cover and then
unplug the temp sensor. Finally, remove
electric box.
Temp sensor
85
Removal Procedure
4. Disassembly of axial flow fan
Remove retaining nut, spring washer, plain washer
And then remove the axial flow fan.
Retaining nut
Axial flow fan
Motor support
5. Disassembly of motor and motor support
Remove retaining screws and then the motor
Remove the screws on motor support and then
lift the motor support to remove it.
Self-threading screw
Motor
4-way valve
Electric expansion valve
6. Disassembly of electric expansion valve and 4-way valve
Unsolder weld points of electric expansion valve and then
remove electric expansion valve.
Unsolder weld points of 4-way valve and then remove
the 4-way valve.
86
Removal Procedure
Liquid valve
7. Disassembly of gas valve and liquid valve
Remove screws on gas valve and liquid valve
Unsolder weld points connecting gas valve and
Return-air pipe, Then remove gas valve and
liquid valve.
Screw
Gas valve
8. Disassembly of compressor
Loose the nut with washer of the compressor.
Unsolder suction pipe, discharge pipe. Then
remove the pipes and take out the compressor.
Screw of compressor
87
Removal Procedure
10.2 Removal Procedure of Outdoor Unit(2)
Note: 24K, take heat pump unit for example
1. Disassembly of top cover and front side plate
Unscrew retaining screws of the handle and
push it downward to remove the handle.
Remove screws of the top cover and then
remove the cover.
Remove screws of front side plate and then
remove the front side plate.
Top cover
Handle
Screw
front side plate
Grill
2. Disassembly of grill and right side plate
Remove screws of right side plate, side plate
of condensator and valve support. Then, remove
the right side plate.
right side plate
Screw
electric box
3. Disassembly of electric box
Remove screws on electric box cover and
unplug temp sensor. Then remove electric box.
Temp sensor
88
Removal Procedure
4. Disassembly of axial flow fan
Remove nut, spring washer and plain washer.
Then remove axial flow fan.
Retaining nut
5. Disassembly of motor and motor support
Remove retaining screws and then the motor.
Remove screws on motor support and then
Axial flow fan
Motor support
lift the motor to remove it.
Self-threading screw
6. Disassembly of 4-way valve
Unsolder weld points of 4-way valve to
Remove 4-way valve sub-assy.
4-way valve
Weld point
89
Motor
Removal Procedure
7. Disassembly of gas valve and liquid valve
Remove screws on gas valve and liquid valve
Unsolder weld points connecting gas valve and
Return-air pipe, Then remove gas valve and
liquid valve.
Gas valve
Screw
Liquid valve
8. Disassembly of compressor
Loose the nut with washer of the compressor.
Unsolder suction pipe, discharge pipe. Then
remove the pipes and take out the compressor.
Screw of compressor
90
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Add:Jinji west Rd.Qianshan Zhuhai Guangdong China
Tel:86-756-8522219 (After sale Service Dept)
Post code:51907 0