Lennox LI012HI-210P432 User manual

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Service Manual
Models: LI012HI-210P432 / LI012HO-210P432
LI018HI-210P432 / LI018HO-210P432
LI024HI-210P432 / LI024HO-210P432
(Refrigerant:R410A)

Table of Contents
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 ..........................................................................6
2.3 Cooling and Heating Data Sheet in Rated Frequency.................................7
2.4 Noise Curve................................................................................................................8
3. Outline Dimension Diagram........................................................................9
3.1 Indoor Unit ..................................................................................................................9
3.2 Outdoor Unit.............................................................................................................10
4. Refrigerant System Diagram....................................................................11
5. Electrical Part.........................................................................................................12
5.1 Wiring Diagram .......................................................................................................12
5.2 PCB Printed Diagram............................................................................................15
6. Function and Control......................................................................................17
6.1 Remote Controller Introduction .......................................................................17
6.2 Brief Description of Modes and Functions ...................................................21
Part Ⅱ: Installation and Maintenance .................................................26
7. Notes for Installation and Maintenance..........................................26
8. Installation................................................................................................................29
8.1 Installation Dimension Diagram........................................................................29
8.2 Installation Parts-checking ................................................................................31
8.3 Selection of Installation Location.....................................................................31
8.4 Requirements for electric connection ............................................................31
8.5 Installation of Indoor Unit....................................................................................31

Table of Contents
Service Manual
8.6 Installation of Outdoor Unit ................................................................................34
8.7 Vacuum Pumping and Leak Detection............................................................35
8.8 Check after Installation and Test operation..................................................35
9. Maintenance............................................................................................................36
9.1 Error Code List........................................................................................................36
9.2 Procedure of Troubleshooting ..........................................................................42
9.3 Troubleshooting for Normal Malfunction ......................................................54
10. Exploded View and Parts List ..............................................................56
10.1 Indoor Unit..............................................................................................................56
10.2 Outdoor Unit ..........................................................................................................62
11. Removal Procedure.......................................................................................66
11.1 Removal Procedure of Indoor Unit ................................................................66
11.2 Removal Procedure of Outdoor Unit.............................................................71
Appendix:........................................................................................................................80
Appendix 1: Reference Sheet of Celsius and Fahrenheit...............................80
Appendix 2: Conguration of Connection Pipe .................................................80
Appendix 3: Pipe Expanding Method.....................................................................81
Appendix 4: List of Resistance for Temperature Sensor................................82

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Outdoor Unit:
Part Ⅰ: Technical Information
LI012HO-210P432
LI018HO-210P432
LI024HO-210P432
LI012HI-210P432
LI018HI-210P432
LI024HI-210P432
Remote Controller:
YAA1FB

2Technical Information
Service Manual
Model LI012HI-210P432
LI012HO-210P432
Product Code 18J12
18J13
Power Supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity Btu/h 12000
Heating Capacity Btu/h 13000
Cooling Power Input W 1089
Heating Power Input W 1126
Cooling Power Current A 4.73
Heating Power Current A 4.90
Rated Input W 1600
Rated Current A 6.96
Air Flow Volume(SH/H/M/ML/L) CFM 371/294/275/182/-
Dehumidifying Volume Pint/h 2.96
EER (Btu/h)/W 11.0
COP (Btu/h)/W 11.55
SEER 20
HSPF 9.1
Application Area yd219.1-28.7
Indoor Unit
Model of indoor unit LI012HI-210P432
Indoor Unit Product Code 18J12
Fan Type Cross-ow
Diameter Length(DXL) inch Φ3 55/64X25
Fan Motor Cooling Speed (SH/H/M/ML/L) r/min 1350/1200/1050/850
Fan Motor Heating Speed (SH/H/M/ML/L) r/min 1300/1150/1000/900
Output of Fan Motor W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor μF 1.5
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/16
Row-n Gap inch 2-1/16
Coil Length (LXDXW) inch 25X7/8X12 1/16
Swing Motor Model MP24HF
Output of Swing Motor W 1.5
Fuse A 3.15
Sound Pressure Level(SH/H/M/ML/L) dB (A) 42/39/34/28/-
Sound Power Level (SH/H/M/ML/L) dB (A) 52/49/44/38/-
Dimension (WXHXD) inch 35 13/64X11 1/2X8 21/64
Dimension of Carton Box (LXWXH) inch 37 1/8X13 3/4X11
Dimension of Package (LXWXH) inch 37 21/64X14 3/8X11 3/8
Net Weight Ib 23.2
Gross Weight Ib 27.6
2. Specications
2.1 Specication Sheet

3
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit LI012HO-210P432
Outdoor Unit Product Code 18J13
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD
Compressor Model QXF-A102zE190B
Compressor Oil FW68DA
Compressor Type Rotary
Compressor L.R.A. A /
Compressor RLA 6.6
Compressor Power Input W 1023
Overload Protector HPC115/95U1/KSD115ºC
Throttling Method Electron expansion valve
Operation temp ºF 61~86
Ambient temp (cooling) ºF -4~115
Ambient temp (heating) ºF -13~75
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8
Rows-n Gap inch 2-1/16
Coil Length (LXDXW) inch 29 13/32X1 3/4X22
Fan Motor Speed rpm 900
Output of Fan Motor W 30
Fan Motor RLA A 0.37
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 1295
Fan Type Axial-ow
Fan Diameter inch Φ17 1/4
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Design Pressure(High) PSIG 550
Design Pressure(Low) PSIG 240
Sound Pressure Level (H/M/L) dB (A) 53/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension (WXHXD) inch 33 13/32X21 1/4X12 19/32
Dimension of Carton Box (LXWXH) inch 34 37/64X14 1/6X22 5/6
Dimension of Package (LXWXH) inch 34 43/64X14 9/32X23 27/64
Net Weight Ib 72.8
Gross Weight Ib 79.4
Refrigerant R410A
Refrigerant Charge oz 35.3
Connection
Pipe
Length ft 24.6
Gas Additional Charge oz/ft 0.2
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 3/8
Max Distance Height ft 32.8
Max Distance Length ft 49.2
Note:The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model LI024HI-210P432
LI024HO-210P432
LI018HI-210P432
LI018HO-210P432
Product Code 18J30
18J31
18J22
18J23
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity Btu/h 22000 18000
Heating Capacity Btu/h 24000 18000
Cooling Power Input W 1870 1700
Heating Power Input W 2020 1625
Cooling Power Current A 8 7.5
Heating Power Current A 8.78 7.0
Rated Input W 2860 2450
Rated Current A 12.5 12
Air Flow Volume(SH/H/M/ML/L) CFM 765/677/589/500/- 530/441/412/335/-
Dehumidifying Volume Pint/h 4.23 3.8
EER (Btu/h)/W 11.76 10.59
COP (Btu/h)/W 11.88 11.08
SEER 19 19
HSPF 10 9.8
Application Area yd232.29-50.23 27.5-40.7
Indoor Unit
Model of indoor unit LI024HI-210P432 LI018HI-210P432
Indoor Unit Product Code 18J30 18J22
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 1/4X32 11/16 Φ4 3/16X27 13/16
Fan Motor Cooling Speed (SH/H/M/ML/L) r/min 1300/1150/1000/850/- 1400/1200/1050/800/-
Fan Motor Heating Speed (SH/H/M/ML/L) r/min 1300/1150/1000/850/- 1400/1200/1100/900/-
Output of Fan Motor W 30 60
Fan Motor RLA A 0.32 0.3
Fan Motor Capacitor μF 3 /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ 9/32
Row-n Gap inch 2-1/16 2-1/18
Coil Length (LXDXW) inch 33 1/4X1X13 1/2 28 1/6X1X12
Swing Motor Model MP35CJ MP35CJ
Output of Swing Motor W 2.5 2.5
Fuse A 3.15 3.15
Sound Pressure Level(SH/H/M/ML/L) dB (A) Cooling:49/45/41/37
Heating:48/44/39/37
Heating:47/42/38/31/-
Cooling:47/42/39/33/-
Sound Power Level (SH/H/M/ML/L) dB (A) Cooling:59/55/51/47
Heating:58/54/49/37
Heating:57/52/48/41/-
Cooling:57/52/49/43/-
Dimension (WXHXD) inch 44 43/64X13X9 23/32 40X12X8 45/64
Dimension of Carton Box (LXWXH) inch 44 55/64X16X13 1/64 42 13/32X14 13/16X11 13/16
Dimension of Package (LXWXH) inch 47X16 1/16X13 25/32 35 13/32X14 29/32X1213/32
Net Weight Ib 36.4 29.8
Gross Weight Ib 44.1 36.4

5
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit LI024HO-210P432/O LI018HO-210P432/O
Outdoor Unit Product Code 18J31 18J23
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXFS-D25zX090H QXA-B141zF030A
Compressor Oil FW68DA RB68EP
Compressor Type Rotary Rotary
Compressor L.R.A. A 24 25.00
Compressor RLA 13 9.50
Compressor Power Input W 2420 1440
Overload Protector HPC115/95U1/KSD115ºC 1NT11L-6233 or KSD115ºC or
HPC115/95U1
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ºF 61~86 61~86
Ambient temp (cooling) ºF -4~115 -4~115
Ambient temp (heating) ºF -13~75 -13~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8 Φ3/8
Rows-n Gap inch 2-1/16 2-1/18
Coil Length (LXDXW) inch 33 5/16X1 3/4X26 33 5/8X1 1/2X26
Fan Motor Speed rpm 800 800
Output of Fan Motor W 60 60
Fan Motor RLA A 0.4 0.65
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ20 1/2 Φ20 1/2
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Design Pressure(High) PSIG 550 550
Design Pressure(Low) PSIG 240 240
Sound Pressure Level (H/M/L) dB (A) 57/-/- 57/-/-
Sound Power Level (H/M/L) dB (A) 67/-/- 67/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight Ib 123.1 104.7
Gross Weight Ib 131.2 111.4
Refrigerant R410A R410A
Refrigerant Charge oz 63.504 49.4
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.5 0.2
Outer Diameter Liquid Pipe inch 1/4 1/4
Outer Diameter Gas Pipe inch 5/8 1/2
Max Distance Height ft 65.6 50
Max Distance Length ft 100 100
Note:The connection pipe applies metric diameter.

6Technical Information
Service Manual
2.2 Operation Characteristic Curve
Cooling
12K(AFD)
09K/18/24K/12K(AFC)
Heating
Cooling
Capacity ratio( %)
Heating
100
105
95
90
85
80
75
70
65
60
55
50 40
50
120
110
100
90
80
70
60
108-07-15
Capacityratio(%)
-22 -10
Condition
Indoor:DB81°F WB66°F
Indoor air flow: Super High
Pipe length:24.6 ft
Condition
Indoor:DB 68°F
Indoor air flow:Super High
Pipe length:24.6 ft
Outdoor temp(°F) Outdoor temp(°F)
89.695 100.4 107.6 129
gnilooC
Outdoor temp.(°C)
gnitaeH
Capacity ratio(
%)
Outdoor temp.(°C)
0
20
40
60
80
100
120
140
-13-45 14 23 32 41 50 59 68 75.2
89.6 91.4 93.295 96.8 98.6 100.4 102.2 109.4 104 105.8 107.6
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp.(°F)
Capacity ratio (%)
Conditions
Indoor:DB 80°F /WB66.9 °F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:
24.6ft
Conditions
Indoor:DB 80°F /WB66.9 °F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:
24.6ft

7
Technical Information
Service Manual
2.3 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(°F) (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
revolution
(Hz)
Indoor Outdoor PSIG T1 (°F) T2 (°F)
81/66 95/75 12K 123.2~145 in:46~52
out:52~57
in:122~176
out:99~109 Suprt High High 58
81/66 95/75 18/24K 130~142 in:46.4~51.8
out:51.8~57.2
in:167~181.4
out:98.6~118.4 Super High High 75
Rated heating
condition(°F) (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
revolution
(Hz)
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
70/60 19.94/19.04 12K 362.3~435 in:122~176
out:99~109
in:34~37
out:36~41 Super High High 56
70/60 19.94/19.04 18/24K 507~550 in:167~181.4
out:98.6~113
in:33.8~37.4
out:35.6~42.8 Super High High 80
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: 24.6ft.
Cooling:
Heating: