Lennox LI012CO-230P432 User manual

Thank you for selecting LENNOX air conditioners.
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