Gree GWC36LB-D3NNB2A, GWC36LB-D3NNB2A/I, GWC36LB-D3NNB2A/O, YV1FB7 Service Manual
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWC36LB-D3NNB2A
(Refrigerant R410A)
Model:
Service Manual
Table of Contents
Part
Ⅰ
: Technical Information
.......................................................................1
1. Summary
......................................................................................................................1
2. Specications
..........................................................................................................2
2.1 Specication Sheet ...........................................................................................................2
2.2 Capacity Variation Ratio According to Temperature .........................................................4
2.3 Cooling and Heating Data Sheet in Rated Frequency .....................................................4
3. Outline Dimension Diagram
........................................................................5
3.1 Indoor Unit ........................................................................................................................5
3.2 Outdoor Unit .....................................................................................................................5
4. Refrigerant System Diagram
......................................................................6
5. Electrical Part
...........................................................................................................7
5.1 Wiring Diagram .................................................................................................................7
5.2 PCB Printed Diagram .......................................................................................................9
6. Function and Control
...................................................................................... 11
6.1 Remote Controller Introduction .....................................................................................11
6.2 Brief Description of Modes and Functions ......................................................................15
Part
Ⅱ
: Installation and Maintenance
.................................................20
7. Notes for Installation and Maintenance
..........................................20
8. Installation
................................................................................................................22
8.1 Installation Dimension Diagram ......................................................................................22
8.2 Installation Parts-checking ............................................................................................24
8.3 Selection of Installation Location ....................................................................................24
8.4 Electric Connection Requirement ...................................................................................24
8.5 Installation of Indoor Unit ................................................................................................24
8.6 Installation of Outdoor Unit .............................................................................................27
8.7 Vacuum Pumping and Leak Detection ...........................................................................28
8.8 Check after Installation and Test Operation ...................................................................28
9. Maintenance
............................................................................................................29
9.1 Error Code ......................................................................................................................29
9.2 Procedure of Troubleshooting ........................................................................................31
9.3 Maintenance Method for Normal Malfunction .................................................................36
Table of Contents
Service Manual
10. Exploded View and Parts List
..............................................................38
10.1 Indoor Unit ....................................................................................................................38
10.2 Outdoor Unit .................................................................................................................40
11. Removal Procedure
.......................................................................................42
11.1 Removal Procedure of Indoor Unit ...............................................................................42
11.2 Removal Procedure of Outdoor Unit ............................................................................51
Appendix:
........................................................................................................................57
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................57
Appendix 2: Conguration of Connection Pipe .....................................................................57
Appendix 3: Pipe Expanding Method ...................................................................................58
Appendix 4: List of Resistance for Temperature Sensor ......................................................59
Table of Contents
1
Technical Information
Service Manual
1. Summary
Part
Ⅰ
: Technical Information
Indoor Unit:
Remote Controller:
Outdoor Unit:
GWC36LB-D3NNB2A/I
GWC36LB-D3NNB2A/O
YV1FB7
2
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWC36LB-D3NNB2A
Product Code CA433000800
Power Supply
Rated Voltage V~ 230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 9670
Heating Capacity W /
Cooling Power Input W 3300
Heating Power Input W /
Cooling Power Current A 14
Heating Power Current A /
Rated Input W 4200
Rated Current A 22
Air Flow Volume(SH/H/M/L/SL) m3/h 1450/1350/1150/1000/-
Dehumidifying Volume L/h 3.5
EER W/W 2.93
COP W/W /
SEER /
HSPF /
Application Area m
2
46-70
Indoor Unit
Model of indoor unit GWC36LB-D3NNB2A/I
Indoor Unit Product Code CA433N00800
Fan Type Cross-ow
Diameter Length(DXL) mm Φ108X522.7
Fan Motor Cooling Speed (SH/H/
M/L/SL)
r/min 1450/1350/1200/1050/-
Fan Motor Heating Speed (SH/H/
M/L/SL)
r/min /
Output of Fan Motor W 60
Fan Motor RLA A 0.46
Fan Motor Capacitor μF 3
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.5
Coil Length (LXDXW) mm 1074X25.4X381
Swing Motor Model MP24HB
Output of Swing Motor W 1.5
Fuse A 5
Sound Pressure Level (SH/H/M/L/
SL)
dB (A) 56/54/50/47/-
Sound Power Level (SH/H/M/L/SL) dB (A) 66/64/60/57/-
Dimension (WXHXD) mm 1350X326X253
Dimension of Carton Box (LXWXH) mm 1438X418X352
Dimension of Package (LXWXH) mm 1441X421X367
Net Weight kg 20
Gross Weight kg 24.5
3
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit GWC36LB-D3NNB2A/O
Outdoor Unit Product Code CA433W00800
Compressor Manufacturer/Trademark
SHANGHAI HITACHI ELECTRICAL APPLIANCES
CO.;LTD.
Compressor Model ATH290RN-C9LU
Compressor Oil Mineral Oil
Compressor Type Rotary
L.R.A. A 64
Compressor RLA A 13.7
Compressor Power Input W 3020
Overload Protector UP14SE5215
Throttling Method Capillary
Operation temp ºC 16~30
Ambient temp (cooling) ºC 18~43
Ambient temp (heating) ºC /
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94
Rows-n Gap mm 2.5-1.5
Coil Length (LXDXW) mm 953X57.15X748
Fan Motor Speed rpm 780
Output of Fan Motor W 90
Fan Motor RLA A 0.8
Fan Motor Capacitor μF 4
Air Flow Volume of Outdoor Unit m3/h 4000
Fan Type Axial-ow
Fan Diameter mm Φ552
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side
MPa 4.3
Permissible Excessive Operating Pressure for the
Suction Side
MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/-
Dimension (WXHXD) mm 980X790X427
Dimension of Carton Box (LXWXH) mm 1080X485X840
Dimension of Package (LXWXH) mm 1083X488X855
Net Weight kg 68
Gross Weight kg 73
Refrigerant R410A
Refrigerant Charge kg 2.4
Connection
Pipe
Length m 5
Gas Additional Charge g/m 15
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ19
Max Distance Height m 10
Max Distance Length m 30
Note:The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.
4
Technical Information
Service Manual
2.3 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(°C)
(DB/WB)
Model
Pressure of gas pipe
connecting indoor and
outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed of
indoor unit
Fan speed
of outdoor
unit
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 36K 0.48 ~ 0.7 7.2 to 9.6 78.1 to 38.5 Supper High High
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 m.
Cooling:
2.2 Capacity Variation Ratio According to Temperature
0
20
40
60
80
100
120
Capacity ratio(%)
Outdoor temp. (°C)
-7 -5 0510
7
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length:5m
32 33 34 35 36 37 38 39
4340 41 42
100
105
95
90
85
80
75
70
65
60
55
50
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length:5m
Outdoor temp.(°C)
Capacity ratio (%)
Cooling:
5
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
3.2 Outdoor Unit
Unit:mm
920
370
980427
610
395
790
1350
326
253
295
90
40
350 254746
Φ70
Φ70
Unit:mm
6
Technical Information
Service Manual
4. Refrigerant System Diagram
Refrigerant pipe diameter
Liquid :1/4" (6 mm)
Gas : 5/8" (16mm)
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Accumlator
Compressor
Strainer
Strainer Strainer
Capillary
Capillary
Cooling only model
Cooling and heating model
7
Technical Information
Service Manual
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green Grounding wire
YE Yellow BN Brown COMP Compressor
RD Red BU Blue CAP Jumper Cap
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
● Instruction
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
3
2
8
Technical Information
Service Manual
● Outdoor Unit
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
COM-INNER
N1
AC-L
COMP
R(M)
S
C
PE
N
YEGN
BU
BN
BK
BUW4
W6BK
BNW3
W7RD
AC CONTACTOR
BUW11
W14
AP1 PRINTED CIRCUIT BOARD
L
TERMINAL
BLOCK
ITCII
TRANSFORMER
R3R1
T-PIPE TR-OUTTR-IN
SHIELDING
RESISTOR
COMP
COMP.
PE
YEGN
W13BK
N
L
N
PE
LPP
BK(BN)
BU
YEGN
BU
W12YE
J
W5
BU
W8BU
BN
W1BN
POWER
1/L1
A2
2/T1
(6)A1(0)
W9
RESISTOR
SHIELDING
BK
C1
BN
PE
PE
YEGN
(BU)
BK
CAP.
RDBN
C2
FAN MOTOR
M
W17
SWITCH
PRESSURE
HP
P
HPP
W15W16
YE WH
HIGH
W2
OUTTUBE
SHIELDING
RESISTOR
R2
L1
XT
W10
BU
CAP.
INDOOR UNIT
OUTROOM
3
2
N(1)
(1)
KM
(4)
9
Technical Information
Service Manual
5.2 PCB Printed Diagram
● Top view
● Bottom view
No. Name
1 Fan motor capacitor terminal
2 Live wire
3 Fuse
4 Neutral wire
5
Indoor & outdoor unit
communication cable terminal
6 Wiring terminal for turbo fan
7 Low fan level terminal
8 Medium fan level terminal
9 High fan level terminal
10
Wring terminal for neutral wire
of fan
11 Auto button
12 Up & down swing terminal
13 Ambient temp sensor
14 Tube temp sensor
15 No.2 double-8 display terminal
16 No.1 double-8 display terminal
1
2
3
456879 1110
12
13
14
15
16
Indoor Unit
10
Technical Information
Service Manual
● Top view
● Bottom view
Outdoor Unit
1 Input of transformer
2
Terminal for outdoor fan and
compressor
3 Output of transformer
4
Terminal for high pressure
protection
5
Terminal for low pressure
protection
6
Terminal for outdoor ambient
temp sensor
7
Terminal for outdoor pipe temp
sensor
8 Current mutual-inductor
9
Terminal for communication
wire
10 Protective tube
11 Terminal for neutral wire
12 Terminal for live wire
13
Wiring terminal of outdoor
discharge temperature sensor
1 2
3
4
5
613
7
9
8
10
11
12
11
Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Buttons on Remote Controller
Introduction for icons on display screen
1
14
3
1
13
2
2
5
4
6
7
8
11
12
13
9
14
15
ON/OFF button
▲ button
3
FAN button
SWING button
TIMER OFF button
TURBO button
10
TEMP button
I FEEL button
button
CLOCK button
TIMER ON button
SLEEP button
Send signal
Turbo mode
8
heating function
Set temperature
Set time
TIMER ON /
TIMER OFF
Child lock
Up & down swing
Set fan speed
ventilation operation
Light
Temp. display type
:Set temp.
:Outdoor ambient temp.
:Indoor ambient temp.
Sleep mode
Clock
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel
6
9
8
12
15
4
7
10
5
11
X-FAN button
/
MODE button
▲
button
X-fan mode
health function
Introduction for buttons on remote controller
Note:
● After putting through the power, the air conditioner will give out a sound. Operation indictor " " is ON (red indicator).
After that, you can operate the air conditioner by using remote controller.
●
Under on status, pressing the button on the remote controller, the signal icon " "
on the display of remote controller
will blink once and the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner
.
● Under off status, set temperature and clock icon will be displayed on the display
of remote controller (If timer on, timer
off and light functions are set, the corre-
sponding icons will be displayed on the display of remote controller at the same
time); Under on status, the display will show the corresponding set function icons.
Press this button to turn on the unit. Press this button again to turn off the unit.
Press this button to increase set temperature. Holding it down above 2 seconds rapidly increases set temperature.
In AUTO mode, set temperature is not adjustable.
12
Technical Information
Service Manual
AUTO
COOL DRY FAN
HEAT
*
OFF
13
Technical Information
Service Manual
battery
Cover of battery box
remove
reinstall
14
Technical Information
Service Manual
15
Technical Information
Service Manual
6.2 Brief Description of Modes and Functions
1. Summary
(1) Buzzer
When the controller is energized or receives signal from button (emergency operation switch on air conditioner) or remote controller, the
buzzer will give out a beep.
(2) Display
After energization, all icons will be displayed once. Operation icon is in red under standby status. After turning on the unit by remote
controller, operation icon is bright and corresponding set operation mode icon will be displayed (Mode icon include: cooling, heating,
drying).
(3) Temperature parameter
◆
Indoor set temperature (Tpreset)
◆
Indoor ambient temperature (Tamb.)
◆
Inner tube temperature of indoor evaporator (Ttube)
2. Introduction of Basic Mode Function
◆
Once the compressor is energized, there should be a minimum interval of 3 mins between two start-ups.
◆
If the unit is with memory function and is off before power failure, the compressor can be restarted without an interval of 3 mins; if the
◆
unit is on before power failure, the compressor will be restarted with an interval of 3 mins.
Once compressor is started, it won’t stop within 6 mins according to the change of room temp.
(1) Auto mode
①
Operation condition and process for auto mode
Under auto mode, the system will automatically select operation mode (cooling, heating, and fan) according to indoor ambient
temperature. There swill be 30s delayed for protection between mode switchover.
◆
When Tamb. ≥26℃, the system operates under cooling mode; Ex-factory set temperature is 25℃.
◆
Cool unit: when Tamb. ≤22℃, the system operates under fan mode; Ex-factory set temperature is 25℃.
◆
Heat pump unit: when Tamb. ≤22℃, the system operates under heating mode; Ex-factory set temperature is 20℃.
◆22℃
<Tamb.<26℃: The system operates under fan mode if turn on the unit to enter into auto mode for the rst time; If switch to
auto mode from cooling, heating or fan mode, the system keeps previous operation mode; If switch to auto mode from drying mode, the
system operates under fan mode.
② Display: Operation icon, actual operation mode icon, set temperature (that’s the display content of dual-8 nixie tube)
③ Protection function is same as that under each mode.
(2) Cooling mode
①
Operation condition and process for cooling mode
◆
When Tamb. ≥Tset+1℃, the system operates under cooling mode. In this case, the compressor, the ODU fan motor and the IDU fan
motor operates at set speed.
◆
When Tamb. ≤Tset-1℃, the compressor and the ODU fan motor stop, while the IDU fan motor operates at set speed.
◆
When Tset-1℃<Tamb. <Tset+1℃, the system will maintain its previous operation status.
In cooling mode, the 4-way valve is de-energized (4-way valve is not available for cooling only unit). Temperature setting range is
16~30℃.
Indicates operation
Indicates stop
Tpreset +1 ˚C
Tpreset –1 ˚C
Compressor
Outdoor fan motor
Indoor fan motor
Graphic instruction:
(Same as below)
Tamb.
Stop cooling
Start cooling
Original operating status
6 min. 3 min. 6 min.
Set fan speed
Heating icon
Drying icon
Cooling icon
Dual-8 nixie
tube display
Operation icon
Receiver
window
For B2 panel
Display
16
Technical Information
Service Manual
②
Display: Operation icon, cooling icon, set temperature.
③
Protection function
◆
Freeze protection
During operation, when controller detected that Ttube≤0℃ for a consecutive period of time, the system enters into freeze protection. In
that case, the compressor and the ODU fan stop operation, while the IDU operates at set fan speed. If freeze protection is released and
the compressor has been out of operation for 3 mins, the unit will resume its previous operation status.
◆
Overcurrent protection ( this protection function is not available for those models whose cooling capacity ≤12000Btu/h)
During operation process, if controller detected that system current exceeds the limit value for 3s consecutively (overcurrent), only the
fan operates. About 3 mins later, if overcurrent is released, the system will resume original operation.
If overcurrent protection occurs for 6 times consecutively, and resume operation time won’t exceed 6min every time, overcurrent protection information will be displayed. After turning off the unit, display won’t be displayed.
If turn on the unit again, the system will be restated up again. Overcurrent protection information will be eliminated.
Please refer to maintenance part for display information and disposal method for details.
◆
Locked protection to IDU fan motor
During operation of IDU fan motor, if controller detected that the rotation speed of IDU fan motor less than 300/min or stop rotation, the
motor operates abnormally. In order to prevent damage to motor, controller will protect automatically, the system stops operation and
blocked information of IDU fan motor will be displayed. After turning off the unit, display won’t be displayed.
If turn on the unit again, the system will be restated up again. Blocked information of IDU fan motor will be eliminated. (For some models,
they can only be restated up after re-energized)
Please refer to maintenance part for display information and disposal method for details.
(3) Drying mode
①
Operation condition and process for drying mode
◆
When Tamb. >Tset+2℃, the system starts drying and cooling. In this case, the compressor and the ODU fan motor operate, and the
IDU fan motor operates at low speed.
◆
When Tset-2℃≤Tamb. ≤Tset+2℃, the system will start drying. In this case, the IDU fan motor operates at low speed; the compressor
and the ODU fan motor operate for 6 minutes and stop for 4 minutes in cycle.
◆
When Tamb.<Tset-2℃, the compressor and the ODU fan motor stop, while the IDU fan motor runs at low speed.
In drying mode, the 4-way valve is de-energized (4-way valve is not available for cooling only unit); Temperature setting range is
16~30℃. Fan speed can’t be adjusted.
②
Display: Operation icon, drying icon, set temperature.
③
Protection function
◆
Freeze protection
During dying and cooling operation, when the controller detected that Ttube≤0℃ for a period of time consecutively, the system will enter
into freeze protection. In that case, the compressor and the ODU fan motor stops operation, while the IDU fan motor operates at low
speed. When freeze protection is release and the compressor has stopped for 3min, the system will resume original operation.
During drying operation, when the controller detected that Ttube≤0℃ for a period of time consecutively, the system enters into freeze
protection. In that case, the compressor, the ODU fan motor stops operation, while the IDU fan motor operates at low speed. When
freeze protection is release and the compressor has stopped for 4min, the system will resume original operation.
T
preset
T
amb.
+2
T
preset-
2
Cooling
Drying
Stop
6 min.
6min.
4min.
4min.
Compressor
Low speed
Outdoor fan motor
Indoor fan motor
Freeze protection period
Compressor
Outdoor fan motor
Indoor fan motor
3 min
Set fan speed
17
Technical Information
Service Manual
ķ
Operation condition and process for fan mode
In fan mode, the IDU fan motor operates at set speed, while the compressor and the ODU fan motor stop. 4-way valve is de-energi
zed
(4-way valve is not available for cooling only unit).
Temperature setting range is 16~30ć.
ĸ
Display: Operation icon, set temperature.
Ĺ
Protection function
In fan mode, there are overcurrent protection and blocked protection of IDU fan moto
r. Please refer to corresponding protection function
under cooling mode for details.
(5) Heating mode(no heating mode is not available for cooling only unit)
ķ
Operation conditioner and process for heating mode
In heating mode, 4-way valve is energized.
Temperature setting range is 16~30
ć
ĸ
Display: Operation icon, heating icon, set temperature.
Ĺ
Defrosting condition and process
For ensusing heating ef
fect, air conditioner will defrost automatically according to defrosting status on outdoor unit. During defrosting,
heating icon is bright for a while and then off for a while.
ĺ
Protection function
ƹ
Overheating prevention protection
ƹ
Noise silencing protection
When turning of
f the unit or during mode switchover, the 4-way valve is closed. In order to decrease noise, the 4-way valve will delay
2mins to be closed.
ƹ
Overcurrent protection ( this protection function is not available for those models whose cooling capacity ≤12000Btu/h)
During operation process, if controller detected that system current exceeds the limit value for 3s consecutively(overcurrent),
the
system stops operation.
About 3mins later, if overcurrent is released, the system will resume original operation. If overcurrent protection
occurs for 6 times consecutivel
y, and resume operation time won’t exceed 6min every time, overcurrent protection information will be
displayed.
After turning off the unit, display won’t be displayed.
If turn on the unit again, the system will be restated up again. Overcurrent protection information will be eliminated.
Please refer to maintenance part for display information and disposal method for details
.
ƹ
Locked protection to IDU fan motor
During operation of IDU fan moto
r, if controller detected that the rotation speed of IDU fan motor less than 300/min or stop rotation, the
motor operates abnormall
y. In order to prevent damage to motor, controller will protect automatically, the system stops operation and
blocked information of IDU fan motor will be displayed.
After turning off the unit, display won’t be displayed.
If turn on the unit again, the system will be restated up again. Blocked information of IDU fan motor will be eliminated. (For
some models, they can only be restated up after re-energized)
Please refer to maintenance part for display information and disposal method for details.
T
preset
+4
T
preset
+2
Stop heating
Original operating status
Start heating
valve
Outdoor unit
Intdoor unit
Compressor
min.
min.
T
amb
.
Set fan speedSet fan speed
Reversing
ƹ
When Tamb.-Tsupplementary≤Tset-1,ć the unit starts heating operation. In this case, the 4-way valve is energized; the compressor
and ODU fan motor run simultaneously; the IDU fan motor runs after a
while to prevent blowing out cold air.
ƹ
When Tamb.-Tsupplementary≥Tset+1ć, the compressor and ODU fan motor stop; the 4-way valve remains energized; the IDU fan
motor blow
s residual heat for a while at set speed to prevent high temperature inside the unit.
ƹ
When Tset-1ć˘Tamb.-Tsupplementary˘Tset+1ć, the unit will maintain its previous running status.
During operation, if Ttube≥55ć is detected by the controller, the ODU fan motor stops operation; When Ttube returns to normal, the
ODU fan motor resumes operation.
(4) Fan mode
◆
Other protection is same as that under cooling mode.
6 min. 6 min.3 min.
60S 60S
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