Lennox LI012CO-230P432 User manual

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Service Manual
Models:
LI012CI-230P432 LI012CO-230P432
LI012HI-230P432 LI012HO-230P432
LI018CI-230P432 LI018CO-230P432
LI018HI-230P432 LI018HO-230P432
LI024HI-230P432 LI024HO-230P432
LI024CI-230P432 LI024CO-230P432

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 ........................................................................................8
2.3 Capacity Variation Ratio According to Temperature .........................................................8
2.4 Noise Curve......................................................................................................................9
2.5 Cooling and Heating Data Sheet in Rated Frequency .....................................................9
3. Outline Dimension Diagram......................................................................10
3.1 Indoor Unit......................................................................................................................10
3.2 Outdoor Unit ...................................................................................................................11
4. Refrigerant System Diagram....................................................................13
5. Electrical Part.........................................................................................................14
5.1 Wiring Diagram...............................................................................................................14
5.2 PCB Printed Diagram .....................................................................................................19
6. Function and Control......................................................................................23
6.1 Remote Controller Introduction .....................................................................................23
6.2 Brief Description of Modes and Functions......................................................................27
Part Ⅱ: Installation and Maintenance .................................................36
7. Notes for Installation and Maintenance..........................................36
8. Installation................................................................................................................39
8.1 Installation Dimension Diagram......................................................................................39
8.2 Installation Parts-checking ............................................................................................41
8.3 Selection of Installation Location....................................................................................41
8.4 Requirements for electric connection ............................................................................41
8.5 Installation of Indoor Unit................................................................................................41
8.6 Installation of Outdoor Unit.............................................................................................44
8.7 Vacuum Pumping and Leak Detection ...........................................................................45
8.8 Check after Installation and Test Operation ...................................................................45

Service Manual
Table of contents Table of contents
9. Maintenance............................................................................................................46
9.1 Precautions before Maintenance....................................................................................46
9.2 Error Code List ...............................................................................................................47
9.3 Troubleshooting for Main Malfunction ............................................................................50
9.4 Troubleshooting for Normal Malfunction.........................................................................63
10. Exploded View and Parts List..............................................................65
10.1 Indoor Unit....................................................................................................................65
10.2 Outdoor Unit .................................................................................................................73
11. Removal Procedure.......................................................................................85
11.1 Removal Procedure of Indoor Unit ...............................................................................85
11.2 Removal Procedure of Outdoor Unit ............................................................................95
Appendix:......................................................................................................................110
Appendix 1: Reference Sheet of Celsius and Fahrenheit ..................................................110
Appendix 2: Conguration of Connection Pipe...................................................................110
Appendix 3: Pipe Expanding Method .................................................................................111
Appendix 4: List of Resistance for Temperature Sensor ....................................................112

Y6759
Y6513
Y6757
Y6512
Y6511 / Y6512
1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Part Ⅰ: Technical Information
LI012CI-230P432
LI012HI-230P432
LI018CI-230P432
LI018HI-230P432
LI024CI-230P432
LI024HI-230P432
Outdoor Unit:
LI018CO-230P432
LI018HO-230P432 LI024CO-230P432 LI024HO-230P432
Remote Controller:
YAA1FB
/
F
C
HOUR
ONOFF
No. Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
1LI018CI-230P432
LI018CO-230P432 LI018CI-230P432 Y6511 LI018CO-230P432
2LI018HI-230P432
LI018HO-230P432 Y6756 / Y6757 LI018HI-230P432 Y6756 LI018HO-230P432
3LI024CI-230P432
LI024CO-230P432 Y6513 / Y6514 LI024CI-230P432 LI024CO-230P432 Y6514
4LI012CI-230P432
LI012CO-230P432 Y6509 / Y6510 LI012CI-230P432 Y6509 LI012CO-230P432 Y6510
5LI012HI-230P432
LI012HO-230P432 Y6754 / Y6755 LI012HI-230P432 Y6754 LI012HO-230P432 Y6755
6LI024HI-230P432
LI024HO-230P432 Y6758 / Y6759 Y6758 LI024HO-230P432
Model List:
LI012CO-230P432(LC)
LI012HO-230P432(LCLH)
LI024HI-230P432

2Technical Information
Service Manual
Model LI012CI-230P432
LI012CO-230P432 LI012HI-230P432 LI012HO-230P432
Product Code
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) Btu/h 12000(3100~13000) 12000(3100~13000)
Heating Capacity(Min~Max) Btu/h / 13000(2400~14000)
Cooling Power Input(Min~Max) W 923(200~1350) 960(200~1350)
Heating Power Input(Min~Max) W / 1100(400~1400)
Cooling Power Current A 4.50 4.50
Heating Power Current A / 5.50
Rated Input W 1350 1400
Rated Current A 6.0 6.3
Air Flow Volume(SH/H//M/L) CFM 400/288/241/171 400/288/241/171
Dehumidifying Volume Pint/h 2.96 2.96
EER (Btu/h)/W 12.50 13.00
COP (Btu/h)/W / 11.82
SEER 22.00 22.00
HSPF / 10.10
Application Area yd219.14-28.70 19.14-28.70
Indoor Unit
Model of indoor unit LI012CI-230P432 LI012HI-230P432
Indoor Unit Product Code Y6509 Y6754
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ3 55/64X25 Φ3 55/64X25
Fan Motor Cooling Speed(SH/H/M/L) r/min 1400/1200/1050/800 1400/1200/1050/800
Fan Motor Heating Speed(SH/H/M/L) r/min / 1400/1200/1000/900
Output of Fan Motor W 20 20
Fan Motor RLA A 0.09 0.09
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ2/7 Φ2/7
Row-n Gap inch 2-1/18 2-1/18
Coil Length (LXDXW) inch 25X7/8X12 1/16 25X7/8X12 1/16
Swing Motor Model MP24BA MP24BA
Output of Swing Motor W 1.5 1.5
Fuse A 3.15 3.15
Sound Pressure Level(SH/H/M/L) dB (A) 45/39/35/29 45/39/35/29
Sound Power Level(SH/H/M/L) dB (A) 55/49/45/39 55/49/45/39
Dimension (WXHXD) inch 33 1/4X11 3/8X8 7/32 33 1/4X11 3/8X8 7/32
Dimension of Carton Box (LXWXH) inch 36 9/64X11X14 21/64 36 9/64X11X14 21/64
Dimension of Package (LXWXH) inch 36 1/4X11X15 36 1/4X11X15
Net Weight Ib 22.05 22.05
Gross Weight Ib 26.46 27.56
2. Specications
2.1 Specication Sheet
Y6509 / Y6510 Y6754 / Y6755

3
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit LI012CO-230P432 LI012HO-230P432
Outdoor Unit Product Code Y6510 Y6755
Compressor Manufacturer/Trademark ZHUHAI GREE DAIKIN DEVICE
CO.,LTD
ZHUHAI GREE DAIKIN DEVICE
CO.,LTD
Compressor Model 1GDY23AXD 1GDY23AXD
Compressor Oil DAPHNE FVC50K DAPHNE FVC50K
Compressor Type Swing Swing
Compressor Locked Rotor Amp (L.R.A) A / /
Compressor RLA A 6.6 6.6
Compressor Power Input W 845 845
Overload Protector KSD115OC or HPC115/95 KSD115OC or HPC115/95
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ºF 61~86 61~86
Ambient temp (cooling) ºF 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8 Φ3/8
Rows-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 29 13/32X1 3/4X22 29 13/32X1 3/4X22
Fan Motor Speed rpm 900 900
Output of Fan Motor W 30 30
Fan Motor RLA A / /
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1177 1177
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ15 3/4 Φ15 3/4
Defrosting Method /Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
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) 54/-/- 54/-/-
Sound Power Level (H/M/L) dB (A) 64/-/- 64/-/-
Dimension (WXHXD) inch 33 13/32X21 1/4X12 19/32 33 13/32X21 1/4X12 19/32
Dimension of Carton Box (LXWXH) inch 34 37/64X14 3/16X22 13/16 34 37/64X14 3/16X22 13/16
Dimension of Package (LXWXH) inch 34 43/64X14 9/32X23 27/64 34 43/64X14 9/32X23 27/64
Net Weight Ib 80.47 85.98
Gross Weight Ib 87.08 92.59
Refrigerant R410A R410A
Refrigerant Charge oz 47.62 47.62
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.2 0.2
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ1/2 Φ1/2
Max Distance Height ft 32.8 32.8
Max Distance Length ft 65.6 65.6
Note:The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

Y6756
4Technical Information
Service Manual
Model LI018CI-230P432 LI018CO-230P432 LI018HI-230P432 LI018HO-
230P432
Product Code
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) Btu/h 18000(6800~20000) 18000(6800~20000)
Heating Capacity(Min~Max) Btu/h / 19800(7340~23500)
Cooling Power Input(Min~Max) W 1380(450~2150) 1435(450~2150)
Heating Power Input(Min~Max) W / 1730(580~2600)
Cooling Power Current A 6.12 6.37
Heating Power Current A / 7.68
Rated Input W 2600 3000
Rated Current A 10.39 10.39
Air Flow Volume(SH/H/M/L) CFM 559/488/412/335 559/488/412/335
Dehumidifying Volume Pint/h 1.8 1.8
EER (Btu/h)/W 13.00 12.50
COP (Btu/h)/W / 11.45
SEER 20 20
HSPF / 10
Application Area yd227.51-40.66 27.51-40.66
Indoor Unit
Model of indoor unit LI018CI-230P432 LI018HI-230P432
Indoor Unit Product Code Y6511
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 3/16X27 13/16 Φ4 3/16X27 13/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1400/1200/1050/800 1400/1200/1050/800
Fan Motor Heating Speed(SH/H/M/L) r/min / 1400/1200/1100/900
Output of Fan Motor W 60 60
Fan Motor RLA A 0.24 0.24
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Φ9/32
Row-n Gap inch 2-1/18 2-1/18
Coil Length (LXDXW) inch 28 9/64X1X12 28 9/64X1X12
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/L) dB (A) 47/43/40/39 47/43/40/39
Sound Power Level(SH/H/M/L) dB (A) 57/53/50/49 57/53/50/49
Dimension (WXHXD) inch 38 13/64X11 13/16X8 13/16 38 13/64X11 13/16X8 13/16
Dimension of Carton Box (LXWXH) inch 40 55/64X15X12 40 55/64X15X12
Dimension of Package (LXWXH) inch 41X15X12 39/64 41X15X12 39/64
Net Weight Ib 27.6 27.6
Gross Weight Ib 34.2 34.2
Y6511 / Y6512 Y6756 / Y6757

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 LI018CO-230P432 LI018HO-230P432
Outdoor Unit Product Code Y6512 Y6757
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO,LTD.
ZHUHAI LANDA COMPRESSOR
CO,LTD.
Compressor Model QXA-B141zF030A QXA-B141zF030A
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor Locked Rotor Amp (L.R.A) A 25 25
Compressor RLA A 12.08 12.08
Compressor Power Input W 1440 1440
Overload Protector 1NT11L-6233 or KSD115OC or
HPC115/95U1
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 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Φ9/32
Rows-n Gap inch 3-1/18 3-1/18
Coil Length (LXDXW) inch 36 13/16X1 1/2X25 63/64 36 13/16X1 1/2X25 63/64
Fan Motor Speed rpm 800 800
Output of Fan Motor W 60 60
Fan Motor RLA A 0.49 0.49
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 3200 3200
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ20 15/32 Φ20 15/32
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) 55/-/- 55/-/-
Sound Power Level (H/M/L) dB (A) 65/-/- 65/-/-
Dimension (WXHXD) inch 38X27 9/16X15 19/32 38X27 9/16X15 19/32
Dimension of Carton Box (LXWXH) inch 40 25/64X17 29/32X28 15/16 40 25/64X17 29/32X28 15/16
Dimension of Package (LXWXH) inch 40 33/64X18 5/16X29 33/64 40 33/64X18 5/16X29 33/64
Net Weight Ib 102.5 105.8
Gross Weight Ib 112.5 115.8
Refrigerant R410A R410A
Refrigerant Charge oz 56.44 56.44
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.2 0.2
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ5/8 Φ5/8
Max Distance Height ft 32.8 32.8
Max Distance Length ft 82 82
Note:The connection pipe applies metric diameter.

6Technical Information
Service Manual
Model LI024CI-230P432 LI024CO-230P432 LI024HI-230P432 LI024HO-230P432
Product Code
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) Btu/h 22000(6800-29700) 22000(6824~27296)
Heating Capacity(Min~Max) Btu/h / 23000(6824~30708)
Cooling Power Input(Min~Max) W 1650(450~3000) 1830(450~3000)
Heating Power Input(Min~Max) W / 2000(450~3000)
Cooling Power Current A 7.21 8.05
Heating Power Current A / 8.35
Rated Input W 3000 3000
Rated Current A 14.49 14.49
Air Flow Volume(SH/H/M/L) CFM 706/647/589/530 706/647/589/530
Dehumidifying Volume Pint/h 2 4.23
EER (Btu/h)/W 13.30 12.02
COP (Btu/h)/W / 11.50
SEER 20 20
HSPF / 9
Application Area yd232.29-50.23 32.29-50.23
Indoor Unit
Model of indoor unit LI024CI-230P432 LI024HI-230P432
Indoor Unit Product Code Y6513 Y6758
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch ΦΦ4 1/4X32 7/10 Φ4 1/4X32 7/10
Fan Motor Cooling Speed(SH/H/
M/L) r/min 1300/1100/900/850 1300/1100/900/850
Fan Motor Heating Speed(SH/H/
M/L) r/min / 1300/1100/1000/900
Output of Fan Motor W 60 60
Fan Motor RLA A 0.38 0.38
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Φ9/32
Row-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 33 1/4X1X13 1/2 33 1/4X1X13 1/2
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/L) dB (A) 48/44/40/36 48/44/40/36
Sound Power Level(SH/H/M/L) dB (A) 58/54/50/46 58/54/50/46
Dimension (WXHXD) inch 42 7/16X12 51/64X9 11/16 42 7/16X12 51/64X9 11/16
Dimension of Carton Box
(LXWXH) inch 45 5/64X16 9/64X13 3/16 45 5/64X16 9/64X13 3/16
Dimension of Package (LXWXH) inch 45 13/64X16 17/64X13 25/32 45 13/64X16 17/64X13 25/32
Net Weight Ib 34.2 34.2
Gross Weight Ib 41.9 41.9
Y6513 / Y6514 Y6758 / Y6759

7
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit LI024CO-230P432 LI024HO-230P432
Outdoor Unit Product Code Y6514 Y6759
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO,LTD.
ZHUHAI LANDA COMPRESSOR
CO,LTD.
Compressor Model QXAS-D23zX090 QXAS-D23zX090A
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor Locked Rotor Amp (L.R.A) A 40 25
Compressor RLA A 14.67 14.67
Compressor Power Input W 2450 2550
Overload Protector 1NT11L-6233/HPC 115/95 /KSD115OC1NT11L-6233/HPC 115/95 /
KSD115OC
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ºF 61~86 61~86
Ambient temp (cooling) ºF 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Φ9/32
Rows-n Gap inch 3-1/18 2-1/18
Coil Length (LXDXW) inch 35 9/32X2 1/2X29 7/16 37 31/64X1 1/2X19/32
Fan Motor Speed rpm 820 820
Output of Fan Motor W 92 92
Fan Motor RLA A 0.65 0.65
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 4000 2354
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ21 21/32 Φ21 21/32
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IPX4
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) 59/-/- 59/-/-
Sound Power Level (H/M/L) dB (A) 69/-/- 69/-/-
Dimension (WXHXD) inch 38 37/64X31 7/64X16 13/16 38 37/64X31 7/64X16 13/16
Dimension of Carton Box (LXWXH) inch 42 33/64X19X33 42 33/64X19X33
Dimension of Package (LXWXH) inch 42 41/64X19 7/32X33 21/32 42 41/64X19 7/32X33 21/32
Net Weight Ib 147.7 142.2
Gross Weight Ib 158.8 153.2
Refrigerant R410A R410A
Refrigerant Charge oz 81.1 77.6
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.2 0.5
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ5/8 Φ5/8
Max Distance Height ft 32.8 32.8
Max Distance Length ft 82 82
Note:The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.