Lennox LI009HI-160T432 User manual

Thank you for selecting LENNOX air conditioners.
Service Manual
Models: LI009HI-160T432 LI009HO-160T432
LI012HI-160T432 LI012HO-160T432
LI018HI-160T432 LI018HO-160T432
LI024HI-160T432 LI024HO-160T432
(Refrigerant R410A)

Service Manual
Table of Contents
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 ........................................................................................6
2.3 Capacity Variation Ratio According to Temperature .........................................................6
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................6
2.5 Noise Curve......................................................................................................................7
3. Outline Dimension Diagram.........................................................................................8
3.1 Indoor Unit........................................................................................................................8
3.2 Outdoor Unit .....................................................................................................................9
4. Refrigerant System Diagram....................................................................10
5. Electrical Part.........................................................................................................11
5.1 Wiring Diagram...............................................................................................................11
5.2 PCB Printed Diagram .....................................................................................................14
6. Function and Control......................................................................................18
6.1 Remote Controller Introduction ......................................................................................18
6.2 Brief Description of Modes and Functions......................................................................22
Part Ⅱ: Installation and Maintenance .................................................33
7. Notes for Installation and Maintenance..........................................33
8. Installation................................................................................................................35
8.1 Installation Dimension Diagram......................................................................................35
8.2 Installation Parts-checking ............................................................................................37
8.3 Selection of Installation Location....................................................................................37
8.4 Electric Connection Requirement...................................................................................37
8.5 Installation of Indoor Unit................................................................................................37
8.6 Installation of Outdoor Unit.............................................................................................40
8.7 Vacuum Pumping and Leak Detection ...........................................................................41
8.8 Check after Installation and Test Operation ...................................................................41

Service Manual
Table of Contents
9. Maintenance............................................................................................................42
9.1 Malfunction Display of Indoor Unit..................................................................................42
9.2 Procedure of Troubleshooting ........................................................................................44
9.3 Troubleshooting for Normal Malfunction.........................................................................61
10. Exploded View and Parts List ..............................................................63
10.1 Indoor Unit....................................................................................................................63
10.2 Outdoor Unit .................................................................................................................67
11. Removal Procedure.......................................................................................71
11.1 Removal Procedure of Indoor Unit ...............................................................................71
11.2 Removal Procedure of Outdoor Unit ............................................................................81
Appendix:........................................................................................................................94
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................94
Appendix 2: Conguration of Connection Pipe.....................................................................94
Appendix 3: Pipe Expanding Method ...................................................................................95
Appendix 4: List of Resistance for Temperature Sensor ......................................................96

Y6334
1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
LI009HI-160T432
LI012HI-160T432
LI018HI-160T432
LI024HI-160T432
Outdoor Unit
LI018HO-160T432
LI024HO-160T432
LI009HO-160T432
LI012HO-160T432
Remote Controller

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Parameter Unit Value
Model LI009HI-160T432
LI009HO-160T432
LI012HI-160T432
LI012HO-160T432
Product Code Y6732 Y6733 Y6734 Y6735
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) W 2600(450~3230) 3500(600~3960)
Heating Capacity(Min~Max) W 2800(450~4100) 3670(600~5130)
Cooling Power Input(Min~Max) W 805(200~1420) 1084(200~1550)
Heating Power Input(Min~Max) W 755(200~1550) 989(220~1650)
Cooling Current Input A 3.7 5.2
Heating Current Input A 3.4 5.0
Rated Input W 1550 1650
Rated Current A 6.9 7.3
Air Flow Volume(SH/H/M//L/SL) m3/h 560/490/430/330/- 660/540/460/330/-
Dehumidifying Volume L/h 0.8 1.4
EER W/W 3.23 3.23
COP W/W 3.71 3.71
SEER W/W 6.1 6.1
SCOP W/W 4.0 4.0
Application Area m212-18 16-24
Indoor
Unit
Indoor Unit Model LI009HI-160T432 LI012HI-160T432
Indoor Unit Product Code Y6732 Y6734
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Ф98X580 Ф98X633.5
Cooling Speed(SH/H/M//L/SL) r/min 1300/1200/1050/800/- 1350/1200/1050/850/-
Heating Speed(SH/H/M//L/SL) r/min 1300/1200/1050/900/- 1300/1150/1000/900/-
Fan Motor Power Output W 20 20
Fan Motor RLA A 0.215 0.31
Fan Motor Capacitor μF 1 1.5
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5 Ф5
Evaporator Row-n Gap mm 2-1.4 2-1.4
Evaporator Coil Length (LXDXW) mm 584X22.8X266.7 635X22.8X306.3
Swing Motor Model MP24AA MP24BA
Swing Motor Power Output W 1.5 1.5
Fuse Current A 3.15 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 39/36/32/26/- 42/39/33/26/-
Sound Power Level(SH/H/M//L/SL) dB (A) 55/52/44/38/- 57/53/45/42/-
Dimension (WXHXD) mm 790X275X200 845X289X209
Dimension of Carton Box (LXWXH) mm 863X268X352 918X278X364
Dimension of Package(LXWXH) mm 866X271X367 921X281X379
Net Weight kg 9 10
Gross Weight kg 11 12

3
Technical Information
Service Manual
The above data is subject to change without notice. Please refer to the nameplate of the unit.
Outdoor
Unit
Outdoor Unit Model LI009HO-160T432 Y6734
Outdoor Unit Product Code Y6733 Y6735
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR
CO.,LTD.
ZHUHAI LANDA COMPRESSOR
CO.,LTD.
Compressor Model QXA-A086zC190 QXA-A086zC190
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor LRA. A 40 40
Compressor RLA A 3.1 3.1
Compressor Power Input W 850 850
Compressor Overload Protector 1NT11L-6233 1NT11L-6233
Throttling Method Electron expansion
valve+Capillary
Electron expansion
valve+Capillary
Set Temperature Range ºC 16~30 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43 -15~43
Heating Operation Ambient Temperature
Range ºC -20~24 -20~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7 Φ7
Condenser Rows-n Gap mm 1-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 710X19.05X508 710X38.1X506
Fan Motor Speed rpm 900 900
Fan Motor Power Output W 30 30
Fan Motor RLA A 0.36 0.36
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 1600 1600
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ400 Φ400
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating
Pressure for the Discharge Side MPa 4.3 4.3
Permissible Excessive Operating
Pressure for the Suction Side MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 52/-/- 53/-/-
Sound Power Level (H/M/L) dB (A) 61/-/- 62/-/-
Dimension(WXHXD) mm 776X540X320 776X540X320
Dimension of Carton Box (LXWXH) mm 848X360X580 848X360X580
Dimension of Package(LXWXH) mm 851X363X595 851X363X595
Net Weight kg 28 29
Gross Weight kg 31 32
Refrigerant R410A R410A
Refrigerant Charge kg 0.7 0.85
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 20 20
Outer Diameter Liquid Pipe mm Φ6 Ф6
Outer Diameter Gas Pipe mm Φ9.52 Ф9.52
Max Distance Height m 10 10
Max Distance Length m 15 20
Note: The connection pipe applies metric diameter.

4Technical Information
Service Manual
Parameter Unit Value
Model LI018HI-160T432
LI018HO-160T432
LI024HI-160T432
LI024HO-160T432
Product Code Y6736 Y6737 Y6738 Y6739
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) W 5130(1260~6600) 6700(2000~8200)
Heating Capacity(Min~Max) W 5275(1120~6800) 7250(2000~8500)
Cooling Power Input(Min~Max) W 1580(380~2450) 1875(400~3700)
Heating Power Input(Min~Max) W 1410(350~2600) 1945(450~3800)
Cooling Current Input A 7.0 8.32
Heating Current Input A 6.3 8.63
Rated Input W 2600 3800
Rated Current A 11.5 16.86
Air Flow Volume(SH/H/M//L/SL) m3/h 800/720/610/520/- 1150/1000/900/800/-
Dehumidifying Volume L/h 1.8 2.1
EER W/W 3.25 3.57
COP W/W 3.74 3.73
SEER W/W 6.1 6.30
SCOP W/W 3.0 3.0
Application Area m223-34 23-34
Indoor
Unit
Indoor Unit Model LI018HI-160T432 LI024HI-160T432
Indoor Unit Product Code Y6736 Y6738
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Ф106X706 Φ108X830
Cooling Speed(SH/H/M//L/SL) r/min 1230/1130/1030/900/- 1250/1000/900/800/-
Heating Speed(SH/H/M//L/SL) r/min 1250/1100/1000/900/- 1250/1000/900/850/-
Fan Motor Power Output W 35 35
Fan Motor RLA A 0.35 0.35
Fan Motor Capacitor μF 2.5 3
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7 Ф7
Evaporator Row-n Gap mm 2-1.4 2-1.4
Evaporator Coil Length (LXDXW) mm 715X25.4X304.8 845X25.4X342.9
Swing Motor Model MP35CJ MP35CJ
Swing Motor Power Output W 2.5 2.5
Fuse Current A 3.15 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 46/42/39/36/- 48/45/42/39/-
Sound Power Level(SH/H/M//L/SL) dB (A) 58/54/51/48/- 64/59/56/53/-
Dimension (WXHXD) mm 970X300X224 1078X325X246
Dimension of Carton Box (LXWXH) mm 1038X380X305 1145X410X335
Dimension of Package(LXWXH) mm 1041X383X320 1148X413X350
Net Weight kg 13.5 17
Gross Weight kg 16.5 20.5

5
Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model LI018HO-160T432 LI024HO-160T432
Outdoor Unit Product Code Y6737 Y6739
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO,LTD.
Compressor Model QXA-B141zF030 QXAS-D23zX090A
Compressor Oil 68EP FV50S
Compressor Type Rotary Rotary
Compressor LRA. A 18 25
Compressor RLA A 7.5 11.50
Compressor Power Input W 1440 2550
Compressor Overload Protector 1NT11L-6233 or KSD115ºC or
HPC115/95U1
1NT11L-6233 or HPC115/95/ or
KSD115ºC
Throttling Method Capillary Electron expansion valve+Capillary
Set Temperature Range ºC 16~30 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43 -15~43
Heating Operation Ambient Temperature
Range ºC -20~24 -20~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7 Φ7
Condenser Rows-n Gap mm 2-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 851X38.1X660 935X38.1X660
Fan Motor Speed rpm 750 800/300
Fan Motor Power Output W 60 60
Fan Motor RLA A/ /
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 3200 3200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Ф520 Ф520
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating Pressure
for the Discharge Side MPa 4.3 4.3
Permissible Excessive Operating Pressure
for the Suction Side MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 56/-/- 60/-/-
Sound Power Level (H/M/L) dB (A) 63/-/- 68/-/-
Dimension(WXHXD) mm 963X700X396 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750 1029X458X750
Net Weight kg 45 53
Gross Weight kg 49.5 57.5
Refrigerant R410A R410A
Refrigerant Charge kg 1.3 1.9
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 20 50
Outer Diameter Liquid Pipe mm Ф6 Ф6
Outer Diameter Gas Pipe mm Ф12 Ф16
Max Distance Height m 10 10
Max Distance Length m 25 25
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

6Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
01020304050607090010 20 30 40 50 60 70 80 90 100 120110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
01020304050607090010 20 30 40 50 60 70 80 90 100
120
110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating
Cooling Heating
32 33 34 35 36 37 38 39 43
–15 –10 –5
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
110
100
90
80
70
60
50
40
05710
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length: 5m
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Outdoor temp.(°C) Outdoor temp.(°C)
Capacity ratio (%) Capacity ratio (%)
30
40
50
60
70
80
90
100
110
120
10
750-5-10-15-20
Outdoor temp.(oC)
Capacity ratio(%)
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Cooling Heating
2.4 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
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 All models 0.9 to 1.1 12 to 14 75 to 37 Super High High 52
72
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
Compressor
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 All models 2.2 to 2.4 70 to 35 2 to 4 Super High High 65
77
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:
Heating:

7
Technical Information
Service Manual
2.5 Noise Curve
Indoor side noise when blowing Outdoor side noise when blowing
Indoor fan motor rotating speed
Compressor frequency(Hz)
Noise/dB(A)
50
60
30
40
20
Low Middle High Super High
50
52
54
56
58
60
62
64
68
20 4030 50 60 70 80
90
Noise dB(A)
LI018HO-160T432
LI024HO-160T432
LI024HI-160T432
LI018HI-160T432
Indoor side noise when blowing Outdoor side noise when blowing
Indoor fan motor rotating speed Compressor frequency(Hz)
Noise/dB(A)
50
60
30
40
20
Low Middle High Super High
LI012HI-160T432
LI009HI-160T432
40
42
44
46
48
50
52
54
56
20 4030 50 60 70 80
90
Noise dB(A)
LI009HI-160T432 LI009HO-160T432;LI012HI-160T432 LI012HO-160T432
LI018HI-160T432 LI018HO-160T432;LI024HI-160T432 LI024HO-160T432

8Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
W
D
H
90
150
54
168.5 462 159.5
Φ55 Φ55
54
123.5542 179.5
83.2
124.7
35
Φ55 Φ55
35
104 685 181
140
190
38
Φ55 Φ55
38
79
154
43
206 685 187
Φ70 Φ70
43
Unit:mm
Model W H D
LI009HI-160T432 790 275 200
LI012HI-160T432 845 289 209
LI018HI-160T432 970 300 224
LI024HI-160T432 1078 325 246
LI009HI-160T432 LI012HI-160T432
LI024HI-160T432LI018HI-160T432

9
Technical Information
Service Manual
963
892
700
396
560
341
396
3.2 Outdoor Unit
Unit:mm
Unit:mm
LI009HO-160T432 LI012HO-160T432
LI018HO-160T432 LI024HO-160T432
776
257
320
712
510
540
286

10 Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)(LI009HI-160T432 LI009HO-160T432;LI012HI-160T432 LI012HO-160T432)
Gas pipe:5/8" (16mm)(LI024HI-160T432 LI024HO-160T432)
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:1/2" (12mm)
Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Electric
expand
valve
Strainer
Capillary
Compressor
Accumlator
Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Electric
expand
valve
Strainer
Capillary
Compressor
Accumlator
LI018HI-160T432 LI018HO-160T432
All models except:LI018HI-160T432 LI018HO-160T432

11
Technical Information
Service Manual
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
● Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
76(1625
7(03
6(1625
7(03
6(1625
57
5220
78%(
67(33,1*
',63/$<
35,17('&,5&8,7%2$5'
5(&(,9(5$1'
',63/$<%2$5'
&$%/(
&211(&7,1*
6:,1*8'
02725
%/2&.
7(50,1$/
$3
-803
&$3 %8
%.
<(*1
(9$325$725
3(
;7

1
0
287'22581,7
$3
3*
*(1(5$725
&2/'3/$60$
)$102725
0 5' %8
+($/7+1
+($/7+/
3*)
',63 ',63
%1
<(*1
57
1
&20287
/
%8
%.
%1
/
/



12 Technical Information
Service Manual
LI012HO-160T432
LI009HO-160T432
● Outdoor Unit
/
3(
/
%8
:
9
8
5'
<(
&203
&203
/; /;
3527(&725
29(5/2$5'
7(50,1$/
;7
1
/
1


32:(5
/
1
&1
2)$1
)$1
0
3(
3(
5'
29&&203
6$7
:
9
8
BN
BK
BU
$30DLQ%RDUG
/
1
$&/
&208
3(
/ /
5($&725
/
%8 %1
7(03
6(1625
7(03
6(1625
7(03
57
57
57
6(1625

(+
&1
(.9
(/(&7521,&
<9
:$<
:$<
9$/9(
5'
0$*1(7,&
5,1*
0$*1(7,&
5,1*
N N N
0$*1(7,&
5,1*
;
(/(&75,&$/
0,',62/$7,21
%2;
6+((7
<(*1
3(
3(
<(*1
<(*1
<(*1
<(*1
<(*1
<(*1
9$/9(
(;3$16,21
28778%( 2875220 (;+$867
%/2&.
(+
%RWWRP
%DQG
&RPS
%DQG
+HDWHU +HDWHU
+($7 +($7
%8
%.
%1
%8
%1
97 97
RIHOHFWULFVKRFN
3OHDVHGRQWWRXFKDQ\
WHUPLQDOZKHQWKHPDFKLQHLV
UXQQLQJVWRSSLQJRUKDVEHHQ
SRZHUHGRIIIRUOHVVWKDQ
PLQXWHVWRSUHYHQWWKHULVN
:$51,1*
%8 <( 5'
/
/
/


,1'22581,7
127( 0RWRU
DSSOLHVWRWKH
LURQVKHOOPRWRU
JURXQGRQO\
02725
RIHOHFWULFVKRFN
3OHDVHGRQWWRXFKDQ\
WHUPLQDOZKHQWKHPDFKLQHLV
UXQQLQJVWRSSLQJRUKDVEHHQ
SRZHUHGRIIIRUOHVVWKDQ
PLQXWHVWRSUHYHQWWKHULVN
:$51,1*



<(*1
%8
%.
%1
1
/
1

/
/ /
/
%8
%.
%1
0$*1(7,&5,1*
7(50,1$/
;7
%/2&.
1
$&/
&208
3(
&1
7(03
6(1625
7(03
6(1625
7(03
57
57
57
6(1625
N N N
28778%( 2875220 (;+$867
&1
(.9
(/(&7521,&
9$/9(
(;3$16,21
<9
:$<
:$<
9$/9(
97 97
/; /;
/ /
5($&725
/
%8 %1
0$*1(7,&
5,1*
$30DLQ%RDUG
(+ (+
%RWWRP
%DQG
&RPS
%DQG
+HDWHU +HDWHU
+($7+($7 2)$1
)$1
0
3(
3(
<(*1
02725
3527(&725
29(5/2$5'
5'
29&&203
6$7
5'
/
:
9
8
&203
&203
:
9
8
;
%8 <( 5'
0$*1(7,&
5,1*
32:(5
/
1
<(*1
%8
%1%.
<(*1 <(*1
3(
<(*1
(/(&75,&$/
%2; 3(
0,',62/$7,21
6+((7 3(
<(*1
%8 <( 5'
127(0RWRU
DSSOLHVWRWKH
LURQVKHOOPRWRU
JURXQGRQO\
,1'22581,7

13
Technical Information
Service Manual
LI018HO-160T432
LI024HO-160T432
5'
%$1'
+($7(5
%27720
5'
(+
+($7B%
%1
:$51,1*
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 electric shock !
32:(5
©
©
©
&203
/
:&7
96
85
35,17('&,5&8,7%2$5'
/
3(
<(*1
)$102725
:$< 2)$1
9797
9$/9(
<9
:$<
0 3(
0$*1(7,&
3( 7(50,1$/
%/2&.
<(*1
%8
%1
%8
%1
%.
5,1*
/
,1'22581,7
;7
%8
%.
%1 

1
/
1
3(
%8
<(*1
/1
3(
<(*1
3(
&20B,11(5
1
$&B/
/ /
5,1*
0$*1(7,&
/
29(5/2$'3527(&725
7B6(1625
<(*1
:5'9<(8%8
<(%8 5'
3(
3(
57 57 57
5'
29&B&203
:+:+
6$7
&203
;
<(%8
:+ %.
7(036(1625 28778%( 2875220 7(036(1625 (;+$867 7(036(1625
$3
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
Please don't touch any
electronic component or
terminal when the machine is
running , stopping or has
been powered off for less
than 30 minutes to prevent
the risk of electric shock !
:$51,1*
&20,11(5
1
$&B/
1/
<(*1
%8
3(
1
/
1


%1
%.
%8
;7
,1'22581,7
/
5,1*
%.
%1
%8
%1
%8
<(*1
%/2&.
7(50,1$/
3(
0$*1(7,&
/
/
32:(5
%1
76(1625
©
©
©
&203
/
:
9
8
35,17('&,5&8,7%2$5'
3(
<(*1
)$102725
:$< 2)$1)$
9797
9$/9(
<9
:$<
0 3(
(.9
(OHFWURQLF
([SDQVLRQ
9DOYH
3(
<(*1
3(
/ /
5,1*
0$*1(7,&
/
29(5/2$'3527(&725
<(*1
:5'9<(8%8
<(%8 5'
3(
3(
5'
29&&203
:+:+
6$7
&203
;
<(%8
7(036(1625 28778%(
2875220 7(036(1625 (;+$867 7(036(1625
$3
+($7%
(+
5'
%27720
+($7(5
%$1'
5'
.
5757 57
..
:+ %.

14 Technical Information
Service Manual
5.2 PCB Printed Diagram
Indoor Unit
● Top view
● Bottom view
No Name
1Neutral wire interface of cold
plasma(Only for the model with this function)
2Neutral wire interface of power supply
3Interface of PG motor
4Live wire interface of cold plasma(Only for
the model with this function)
5Interface of up & down swing motor
6Interface of indoor fan feedback
7Interface of temperature sensor
8Interface of display
9Communication wire
10 Live wire interface of power supply
11 Interface of fuse
12 Jumper
13 Auto button
12 34 56
7
8
9
10
11
12 13

15
Technical Information
Service Manual
Outdoor Unit
1
2
3
4
5
6
7
8
9
10
11
12131415
● Top view
● Bottom view
No. Name
1 Compressor
2 Reactor 2
3 Reactor 1
4Chassis electric heating
5Compressor electric heating
64-way valve
7 DC fan
8Earthing wire
9Communication wire
10 Neutral wire
11 Live wire
12 Electronic expansion valve
13 Temperature sensor
14 Overloard
15 DRED
LI009HO-160T432 LI012HO-160T432

16 Technical Information
Service Manual
LI018HO-160T432
● Top view
● Bottom view
No. Name
1Terminal of compressor
overload protection
2Terminal of temperature
sensor
3Terminal of electronic
expansion valve
4Terminal of outdoor fan
5Terminal of 4-way valve
6Terminal of
compressorelectric heating
7Terminal of chassis electric
heating
8Terminal of indoor unit and
outdoor unit communication
9Power supply live wire
10 Earthing wire
11 Power supply neutral wire
1 2 3 4 5 6
7
8
9
10
11

17
Technical Information
Service Manual
LI024HO-160T432
● Top view
● Bottom view
No. Name
1Power supply neutral
wire
2Power supply live wire
3Communication wire
with indoor unit
4Terminal of outdoor
temperature sensor
5Terminal of compressor
overload protection
6Terminal of electronic
expansion valve
7Terminal of outdoor fan
8Terminal of compressor
electric heating
9Terminal of 4-way valve
10 Terminal of compressor
wire
11 Terminal of chassis
electric heating
12
Terminal of low ambient
temperature cooling
temperature sensor
13 Terminal of high
pressure protection
14 Terminal of low pressure
protection
15 Terminal of 2-way valve
16 Earthing wire
1
2
16
3
11
15987654141312
10