Gree GVA24AL-K3NNC7A/I User manual

Service Manual
Models:
Change for life
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
GVA24AL-K3NNC7A
GVA48AL-M3NNC7A
GVA55AL-M3NNC7A
(Refrigerant:R410A)

Service Manual
Table of Contents
Part Ⅰ: Technical Information.......................................................................1
1. Summary......................................................................................................................1
2. Specications..........................................................................................................2
2.1 Specication Sheet...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................8
2.3 Cooling Data Sheet in Rated Frequency..........................................................................8
2.4 Noise Curve......................................................................................................................9
3. Outline Dimension Diagram......................................................................10
3.1 Indoor Unit......................................................................................................................10
3.2 Outdoor Unit ...................................................................................................................11
4. Refrigerant System Diagram....................................................................12
5. Electrical Part.........................................................................................................13
5.1 Wiring Diagram...............................................................................................................13
5.2 PCB Printed Diagram .....................................................................................................16
6. Function and Control......................................................................................19
6.1 Function Buttons of Air Conditioner................................................................................19
6.2 Remote Control Operations............................................................................................21
6.3 Introduction of Each Mode Function...............................................................................25
Part Ⅱ: Installation and Maintenance .................................................30
7. Notes for Installation and Maintenance..........................................30
8. Installation................................................................................................................33
8.1 Installation Dimension Diagram......................................................................................33
8.2 Installation Parts-checking ............................................................................................35
8.3 Selection of Installation Location....................................................................................35
8.4 Requirements for electric connection ............................................................................35
8.5 Installation of Indoor Unit................................................................................................36
8.6 Installation of Outdoor unit .............................................................................................37
8.7 Vacuum Pumping and Leak Detection ...........................................................................39
8.8 Check after Installation and Test Operation ...................................................................39
Table of Contents

Service Manual
9. Maintenance............................................................................................................40
9.1 Error Code List ...............................................................................................................40
9.2 Procedure of Troubleshooting ........................................................................................44
9.3 Maintenance Method for Normal Malfunction.................................................................53
10. Exploded View and Parts List ..............................................................55
10.1 Indoor Unit....................................................................................................................55
10.2 Outdoor Unit .................................................................................................................59
11. Removal Procedure.......................................................................................63
11.1 Removal Procedure of Indoor Unit ...............................................................................63
11.2 Removal Procedure of Outdoor Unit ............................................................................78
Appendix:........................................................................................................................87
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................87
Appendix 2: Conguration of Connection Pipe.....................................................................87
Appendix 3: Pipe Expanding Method ...................................................................................88
Appendix 4: List of Resistance for Temperature Sensor ......................................................89
Table of Contents

Service Manual
1
Technical Information
1. Summary
Part Ⅰ: Technical Information
Indoor Unit:
Remote Controller:
Outdoor Unit:
GVA24AL-K3NNC7A/I
GVA48AL-M3NNC7A/I
GVA55AL-M3NNC7A/I
GVA24AL-K3NNC7A/O
GVA48AL-M3NNC7A/O
GVA55AL-M3NNC7A/O
YAP1F4(WiFi)

Service Manual
2Technical Information
2. Specications
2.1 Specication Sheet
Parameter Unit Value
Model GVA24AL-K3NNC7A
Product Code CG156000200
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 7055
Heating Capacity W 7800+2100
Cooling Power Input W 2430
Heating Power Input W 2350
Cooling Power Current A 10.49
Heating Power Current A 10.15
Rated Input W 4800
Rated Current A 12.09
Air Flow Volume(SH/H/M/L/SL) m3/h 1100/1000/900/800/-
Dehumidifying Volume L/h 2.50
EER W/W 2.90
COP W/W 3.32
SEER W/W /
HSPF W/W /
Application Area m232-50
Indoor Unit
Model of indoor unit GVA24AL-K3NNC7A/I
Product Code CG156N00200
Fan Type Centrifugal
Diameter Length(DXL) mm Φ350X130.5
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 450/415/380/345/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 450/415/380/345/-
Output of Fan Motor W 60
Fan Motor RLA A 0.72
Fan Motor Capacitor μF 4
Heater Power Input W 2100
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2 - 1.3
Coil Length (LXDXW) mm 724X25.4X392
Swing Motor Model MP35AA/MP24TA
Output of Swing Motor W 2.5/1.5
Fuse A 5
Sound Pressure Level (SH/H/M/L/SL) dB (A) 46/44/41/38/-
Sound Power Level (SH/H/M/L/SL) dB (A) 56/54/51/48/-
Dimension (WXHXD) mm 507X1770X320
Dimension of Carton Box (LXWXH) mm 1985X620X425
Dimension of Package(LXWXH) mm 1988X623X440
Net Weight kg 40
Gross Weight kg 52

Service Manual
3
Technical Information
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GVA24AL-K3NNC7A/O
Product Code CG156W00200
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXAS-F255N450
Compressor Oil RB68EP or FVC68D or FV50S
Compressor Type Rotary
L.R.A. A 53.00
Compressor RLA A 9.40
Compressor Power Input W 2060
Overload Protector UP14PE5245
Throttling Method Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC 18~43
Ambient Temp (Heating) ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7
Rows-n Gap mm 2.5-1.4
Coil Length (LXDXW) mm 660X38.1X935
Fan Motor Speed rpm 780
Output of Fan Motor W 85
Fan Motor RLA A 0.8
Fan Motor Capacitor μF 4.5
Air Flow Volume of Outdoor Unit m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Ф520
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) mm 965X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750
Net Weight kg 60
Gross Weight kg 64.5
Refrigerant R410A
Refrigerant Charge kg 1.95
Connection
Pipe
Length m 5
Gas Additional Charge g/m 50
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф16
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.

Service Manual
4Technical Information
Parameter Unit Value
Model GVA48AL-M3NNC7A
Product Code CG156000300
Power
Supply
Rated Voltage V~ 380-415
Rated Frequency Hz 50
Phases 3
Power Supply Mode Outdoor
Cooling Capacity W 14100
Heating Capacity W 15500+3500
Cooling Power Input W 5000
Heating Power Input W 4830
Cooling Power Current A 9.9
Heating Power Current A 9.56
Rated Input W 9500
Rated Current A 14.6
Air Flow Volume(SH/H/M/L/SL) m3/h 1800/1650/1500/1350/-
Dehumidifying Volume L/h 5
EER W/W 2.82
COP W/W 3.21
SEER W/W /
HSPF W/W /
Application Area m255-85
Indoor Unit
Model of indoor unit GVA48AL-M3NNC7A/I
Product Code CG156N00300
Fan Type Centrifugal
Diameter Length(DXL) mm Φ369X180.5
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 550/490/440/390/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 550/490/440/390/-
Output of Fan Motor W 150
Fan Motor RLA A 1.50
Fan Motor Capacitor μF 6
Heater Power Input W 3500
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 3-1.4
Coil Length (LXDXW) mm 876X25.4X472
Swing Motor Model MP24TA /MP35AB
Output of Swing Motor W 1.5/2.5
Fuse A 5
Sound Pressure Level (SH/H/M/L/SL) dB (A) 52/50/48/45/-
Sound Power Level (SH/H/M/L/SL) dB (A) 62/60/58/55/-
Dimension (WXHXD) mm 587X1882X394
Dimension of Carton Box (LXWXH) mm 2150X735X530
Dimension of Package(LXWXH) mm 2153X738X545
Net Weight kg 61
Gross Weight kg 83.5

Service Manual
5
Technical Information
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GVA48AL-M3NNC7A/O
Product Code CG156W00300
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXAS-H59sN330A
Compressor Oil FW68DA
Compressor Type Rotary
L.R.A. A 72.00
Compressor RLA A 9.00
Compressor Power Input W 4900
Overload Protector UP14PE5245
Throttling Method Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC 18~43
Ambient Temp (Heating) ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7.94
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 866X38.1X1210
Fan Motor Speed rpm 840
Output of Fan Motor W 68
Fan Motor RLA A 0.65
Fan Motor Capacitor μF 3.5
Air Flow Volume of Outdoor Unit m3/h 6000
Fan Type Axial-ow
Fan Diameter mm Ф470
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) mm 1032X1250X412
Dimension of Carton Box (LXWXH) mm 1110X450X1280
Dimension of Package(LXWXH) mm 1113X453X1400
Net Weight kg 107.0
Gross Weight kg 118.0
Refrigerant R410A
Refrigerant Charge kg 4.1
Connection
Pipe
Length m 5
Gas Additional Charge g/m 120
Outer Diameter Liquid Pipe mm Ф12
Outer Diameter Gas Pipe mm Ф19
Max Distance Height m 20
Max Distance Length m 30
Note: The connection pipe applies metric diameter.

Service Manual
6Technical Information
Parameter Unit Value
Model GVA55AL-M3NNC7A
Product Code CG156000100
Power
Supply
Rated Voltage V~ 380-415
Rated Frequency Hz 50
Phases 3
Power Supply Mode Outdoor
Cooling Capacity W 15200
Heating Capacity W 17000+3500
Cooling Power Input W 5410
Heating Power Input W 5290
Cooling Power Current A 11.72
Heating Power Current A 11.24
Rated Input W 11100
Rated Current A 17.6
Air Flow Volume(SH/H/M/L/SL) m3/h 1800/1650/1500/1350/-
Dehumidifying Volume L/h 5.5
EER W/W 2.81
COP W/W 3.21
SEER W/W /
HSPF W/W /
Application Area m280-100
Indoor Unit
Model of indoor unit GVA55AL-M3NNC7A/I
Product Code CG156N00100
Fan Type Centrifugal
Diameter Length(DXL) mm Φ369X180.5
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 550/490/440/390/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 550/490/440/390/-
Output of Fan Motor W 150
Fan Motor RLA A 1.50
Fan Motor Capacitor μF 6
Heater Power Input W 3500
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 3-1.4
Coil Length (LXDXW) mm 876X25.4X472
Swing Motor Model MP24TA /MP35AB
Output of Swing Motor W 1.5/2.5
Fuse A 5
Sound Pressure Level (SH/H/M/L/SL) dB (A) 52/50/47/44/-
Sound Power Level (SH/H/M/L/SL) dB (A) 62/60/57/54/-
Dimension (WXHXD) mm 587X1882X394
Dimension of Carton Box (LXWXH) mm 2150X735X530
Dimension of Package(LXWXH) mm 2153X738X545
Net Weight kg 61
Gross Weight kg 83.5

Service Manual
7
Technical Information
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GVA55AL-M3NNC7A/O
Product Code CG156W00100
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXAS-H64sN330
Compressor Oil FW68DA
Compressor Type Rotary
L.R.A. A 85.00
Compressor RLA A 10.60
Compressor Power Input W 5450
Overload Protector UP18WA12R-220
Throttling Method Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC 18~43
Ambient Temp (Heating) ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7.94
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 866X38.1X1210
Fan Motor Speed rpm 840
Output of Fan Motor W 68
Fan Motor RLA A 0.65
Fan Motor Capacitor μF 3.5
Air Flow Volume of Outdoor Unit m3/h 6000
Fan Type Axial-ow
Fan Diameter mm Ф470
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 60/-/-
Sound Power Level (H/M/L) dB (A) 70/-/-
Dimension (WXHXD) mm 1032X1250X412
Dimension of Carton Box (LXWXH) mm 1110X450X1280
Dimension of Package(LXWXH) mm 1113X453X1400
Net Weight kg 107.0
Gross Weight kg 118.0
Refrigerant R410A
Refrigerant Charge kg 4.2
Connection
Pipe
Length m 5
Gas Additional Charge g/m 120
Outer Diameter Liquid Pipe mm Ф12
Outer Diameter Gas Pipe mm Ф19
Max Distance Height m 20
Max Distance Length m 30
Note: The connection pipe applies metric diameter.

Service Manual
8Technical Information
2.2 Operation Characteristic Curve
Cooling Heating
32 33 34 35 36 37 38 39 43
40 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 (%)
30
40
50
60
70
80
90
100
110
120
10
-5-1
05
70-15-20
Outdoor temp.(oC)
Capacity ratio(%)
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
2.3 Cooling Data Sheet in Rated Frequency
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.
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 24K 0.58 to 1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
27/19 35/24 48/55K 0.8 to 0.9 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
Rated heating 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)
20/- 7/6 24K 2.5 to 3.0 in:75~85
out:37~43
in:1~3
out:3~5 Super High High
20/- 7/6 48/55K 3.0 to 3.1 in:75~85
out:37~43
in:1~3
out:3~5 Super High High
Cooling:
Heating:

Service Manual
9
Technical Information
2.4 Noise Curve
24K 48K 55K
60
50
40
30
20
10
0
Noice/dB(A)
low Middle High Super High
Indoor side noise when blowing
Indoor fan motor rotating speed

Service Manual
10 Technical Information
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
+
:'
Model W H D
24K 507 1770 320
48/55K 587 1882 394

Service Manual
11
Technical Information
Unit:mm
Unit:mm
3.2 Outdoor Unit
364
560
700
396
340
965
897
24K
48K/55K
1032
572
378
412
1250

Service Manual
12 Technical Information
4. Refrigerant System Diagram
Cooling and heating model
Indoor unit Outdoor unit
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
COOLING
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Accumlator
Compressor
Strainer
Strainer StrainerCapillary
Capillary
Connection pipe specication:
Liquid pipe:1/4" (6mm) 24K
Liquid pipe:1/2" (12mm) 48/55K
Gas pipe:5/8" (16mm) 24K
Gas pipe:3/4" (19mm) 48/55K

Service Manual
13
Technical Information
287'22581,7
1
6:,1*8'
%8


;7
1
6:,1*/5
7(50,1$/
%/2&.
%.
$&/ %1
%8
%.
%1
<(*1
$335,17('&,5&8,7%2$5'
3(
%8
%1
<(*1
32:(5
1
/
76(1625
7(03
5220
57 57

0
0
&20',63/$<
&200$,1
$3',63/$<
;
0 <(*1
&
)$1
3(
)$102725
6(1625
7(03
78%(
6(1625
/
1
83'2:1
67(33,1*
02725
/()75,*+7
67(33,1*
02725
%1
%8
&20
&$3
&211(&725
.0
,+($71
2+($71
.0
.B+($7
.B+($7
)8
2+($7/
,+($7/
5'
(+
)87 67
+($7(5
%8
%8
%1
127(0RWRU
JURXQGRQO\
DSSOLHVWR
WKHLURQ
VKHOOPRWRU
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
● Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
600007001381
24K

Service Manual
14 Technical Information
:+
5' %. %8
%8
%8
%1
2+($7
,+($7/
,+($7/ 2+($7
2+($7
,+($7/
6:,1*/5
0
%.
97
35,17('&,5&8,7%2$5'
7(50,1$/%/2&.
/
;7
$&/
/
/
,1'22581,7
97
%.
%1
$3
&200$,1
76(1625
57
57
0
1
&20
%1
%.
;
&211(&725

.0
.0
.0
<(*1
%8
1
2+($7
,+($71 .0
287'22581,7
&20287
&20',63/$<
&1 &1
6:,1*8'
)$1
<(*1
3(
0
)$1
&
:+
:+
3(
02725
&1
$3
83'2:1
67(33,1*
02725
/()75,*+7
67(33,1*
02725
7(03
6(1625
78%(
7(03
6(1625
5220
',63/$<
+($57(5
(+
)87 67
600007001208
48/55K

Service Manual
15
Technical Information
These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
● Outdoor Unit
L1
M
XT
BU
CAP.
FAN MOTOR
OUTROOM
3
2
N(1)
KM
COM-INNER
N1
AC-L
COMP
C2
R(M)
S
C
PE
N
OFAN
YEGN
BU
BN
BK
BU
BK
BN
RD
BU
BN RD
TERMINAL
BLOCK
I
TC
TRANSFORMER
RT1
OUTTUBE TR-OUTTR-IN
CAP.
BK
(BU)
YEGN
PE
PE
COMP
COMP.
PE
YEGN
BK
LPP
C1
(1)
BU
YE
J
BU
BN
BN
BK
HPP
YE WH
P
HP
HIGH PRESSURE
SWITCH
RT2
RESISTOR
SHIELDING
N
NOTE:Motor
ground only
applies to
the iron
shell motor.
R3
T-PIPE
AP1 PRINTED CIRCUIT BOARD
INDOOR UNIT
(6)
(4) 
TEMP.
ROOM
AC CONTACTOR
PE
SENSOR
TEMP.
TUBE
SENSOR
L1/6 A2/1
A1/0
T1/4

4-WAY VALVE
4WAY N1
VT
4YV
VT
JUMP
CAP


3
.0
$
$ 5'
:+
6(1625
7(03
78%(
6(1625
5220
28778%(
57 57
287
2875220
287
7(03




%1
%8
%.
97
%1
%.
97
3527(&725
3+$6(5(9(56(
;7
/
/
/
&20,11(5
1
$&/
&203
$335,17('&,5&8,7%2$5'
1
7(50,1$/
%/2&.
7&
ė
Ė
75$16)250(5
7528775,1
&203
3(
<(*1
6(1625
7(03
73,3(
57
',6&+$5*( 6:,7&+
35(6685(
/2:
/36
/33
:+ %8
%1
%.
97
%8
/
/
/
1
32:(5

7: 79 78
97 %. %1
$&&217$&725
&
6
5
7
$
(
,1'22581,7
3(
<(*1
&203
3
6:,7&+
35(6685(
+,*+
+36
+33
<( %8
$3
/ /
3(
<(*1
%1
%.
97
%8
%.
%8
%1
%8 &$3
-803
%8

0
:+
)$102725
&
%1
%.
<(*1
3(
5'
5'
3(
<(*1
%.
%1
1
&
)$102725
:+
0
;7
2)$1
(+
&203%$1'
+($7(5
+($77,(
&$3 &$3
%1 %1
7(50,1$/
%/2&.

2* %8
2* %8
%1
127(0RWRU
JURXQGRQO\
DSSOLHVWR
WKHLURQ
VKHOOPRWRU
:$<
:$<
97
<9
97
9$/9(
1
;;
600007001387
600007001207
48/55K
24K

Service Manual
16 Technical Information
5.2 PCB Printed Diagram
Indoor unit
Terminal with outdoor unit
communication wire
1
2
2
Netural wire
3Iive wire
4
43
Fuse
5
5
Heater Iive wire
6
6
Needle stand for indoor fan
7
7
Up&down swing interface
8
8
Left&right swing interface
9
9
Temperature sensor
10
10
Display board
●
●
Top view
Bottom view
1
24K

Service Manual
17
Technical Information
Compressor wiring terminal
1
2
2
Fuse
3Interface of netural wire
4
43
Interface of live wire
5
5
Needle stand for indoor fan
6
6
Needle stand of simulation port
7
7
Live wire terminal of E-heater1
8
8
Fuse of E-heater1
9
9
Live wire terminal of E-heater2
10
10 11
12
13
14
1516
17
1819
Fuse of E-heater2
11 Live wire terminal of E-heater3
12 Fuse of E-heater3
13 Needle stand connected with
drive board of DC motor
14 Interface of temperature sensor
15 up&down swing interface
16 Left&right swing interface
17 RS485 Communication interface
18 connection with display board
19 Needle stand of fast-detection port
●
●
Top view
Bottom view
1
48/55K