Lennox LM012CI-100V232-1X User manual

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Service Manual
Models: LM012CI-100V232-1X LM012CO-100V232-1X
LM012HI-100V232-1X/LM012HO-100V232-1X
(Refrigerant:R22)

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 Capacity Curve in Different Outdoor Temperature ...........................................................4
2.3 Cooling Data Sheet in Rated Frequency.........................................................................4
3. Outline Dimension Diagram........................................................................5
3.1 Indoor Unit........................................................................................................................5
3.2 Outdoor Unit .....................................................................................................................6
4. Refrigerant System Diagram......................................................................7
5. Electrical Part...........................................................................................................8
5.1 Wiring Diagram.................................................................................................................8
5.2 PCB Printed Diagram .....................................................................................................11
6. Function and Control......................................................................................12
6.1 Remote Controller Introduction ......................................................................................12
6.3 Brief Description of Modes and Functions......................................................................16
Part Ⅱ: Installation and Maintenance .................................................21
7. Notes for Installation and Maintenance..........................................21
8. Installation................................................................................................................23
8.1 Installation Dimension Diagram......................................................................................23
8.2 Installation Parts-checking ............................................................................................25
8.3 Selection of Installation Location....................................................................................25
8.4 Electric Connection Requirement...................................................................................25
8.5 Installation of Indoor Unit................................................................................................25
8.6 Installation of Outdoor Unit.............................................................................................28
8.7 Vacuum Pumping and Leak Detection ...........................................................................29
8.8 Check after Installation and Test Operation ...................................................................29
9. Maintenance............................................................................................................30
9.1 Error Code......................................................................................................................30
9.2 Procedure of Troubleshooting ........................................................................................31
9.3 Maintenance Method for Normal Malfunction.................................................................36
Table of Contents

Service Manual
10. Exploded View and Parts List ..............................................................38
10.1 Indoor Unit....................................................................................................................38
10.2 Outdoor Unit .................................................................................................................40
11. Removal Procedure.......................................................................................44
11.1 Removal Procedure of Indoor Unit ...............................................................................44
11.2 Removal Procedure of Outdoor Unit ............................................................................49
Appendix:........................................................................................................................53
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................53
Appendix 2: Conguration of Connection Pipe.....................................................................53
Appendix 3: Pipe Expanding Method ...................................................................................54
Appendix 4: List of Resistance for Temperature Sensor ......................................................55
Table of Contents

Y6185
1
Technical Information
Service Manual
1. Summary
Indoor Unit:
LM012CI-100V232-1X
LM012HI-100V232-1X
Part Ⅰ: Technical Information
Outdoor Unit:
LM012CO-100V232-1X
Remote Controller:
LM012HO-100V232-1X

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model LM012CI-100V232-1X/
LM012CO-100V232-1X
LM012HI-100V232-1X/
LM012HO-100V232-1X
Product Code Y6687/Y6688 Y6697/Y6698
Power
Supply
Rated Voltage V~ 115 115
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Indoor Indoor
Cooling Capacity W 3370 3282
Heating Capacity W / 3517
Cooling Power Input W 1190 1180
Heating Power Input W / 1050
Cooling Power Current A 10.35 10.47
Heating Power Current A / 9.31
Rated Input W 1650 1700
Rated Current A 14.35 16.50
Air Flow Volume(SH/H/M/L/SL) m3/h 550/460/380/300/- 600/470/380/320/-
Dehumidifying Volume L/h 1 1
EER W/W 3 3
COP W/W / 3
SEER W/W / /
HSPF W/W / /
Application Area m216-24 15-22
Indoor Unit
Model of indoor unit LM012CI-100V232-1X LM012HI-100V232-1X
Indoor Unit Product Code Y6687 Y6697
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) mm Φ98X580 Φ98X580
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1450/1200/1050/800 1450/1200/1050/800/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min / 1350/1200/1050/900/-
Output of Fan Motor W 20 20
Fan Motor RLA A 0.17 0.4
Fan Motor Capacitor μF 4 4
Input of Heater W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Ф5 Φ5
Row-n Gap mm 2-1.4 2-1.4
Coil Length (LXDXW) mm 584X22.8X266.7 584X22.8X266.7
Swing Motor Model MP24AA MP24AA
Output of Swing Motor W 1.5 1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 42/38/34/29/- 43/38/34/29/-
Sound Power Level (SH/H/M/L/SL) dB (A) 52/48/44/39/- 53/48/44/39/-
Dimension (WXHXD) mm 790X200X275 790X200X275
Dimension of Carton Box (LXWXH) mm 850X264X339 850X339X262
Dimension of Package (LXWXH) mm 853X267X354 853X342X277
Net Weight kg 9 9.5
Gross Weight kg 11 11.5

3
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit LM012CO-100V232-1X LM012HO-100V232-1X
Outdoor Unit Product Code Y6688 Y6698
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD.
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QX-B172xC030 QX-B172xC030
Compressor Oil ATMOS NM56EP ATOMS-NM56EP
Compressor Type Rotary Rotary
L.R.A. A 47 47
Compressor RLA A 10.3 10
Compressor Power Input W 1140 1140
Overload Protector InternalUP3-49 UP3-49
Throttling Method Capillary Capillary
Operation Temp oC 16~30 16~30
Ambient Temp (Cooling) oC 18~48 18~43
Ambient Temp (Heating) oC / -7~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Ф5 Φ7.94
Rows-n Gap mm 1-1.3 1-1.4
Coil Length (LXDXW) mm 709X11.4X495.3 696X19.05X506
Fan Motor Speed rpm 850 850
Output of Fan Motor W 30 30
Fan Motor RLA A 0.34 0.53
Fan Motor Capacitor μF 7 7
Air Flow Volume of Outdoor Unit m3/h 1600 1800
Fan Type Axial-ow Axial-ow
Fan Diameter mm Ф394.5 Φ400
Defrosting Method / Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating Pressure for
the Discharge Side MPa 3 3.0
Permissible Excessive Operating Pressure for
the Suction Side MPa 1.5 1.5
Sound Pressure Level (H/M/L) dB (A) 50/-/- 50/-/-
Sound Power Level (H/M/L) dB (A) 60/-/- 60/-/-
Dimension (WXHXD) mm 776X540X320 776X540X320
Dimension of Carton Box (LXWXH) mm 820X355X580 820X355X580
Dimension of Package (LXWXH) mm 823X358X595 823X358X595
Net Weight kg 27 29.5
Gross Weight kg 29.5 32
Refrigerant R22 R22
Refrigerant Charge kg 0.43 0.65
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 15 15
Outer Diameter Liquid Pipe mm Ф6 Φ6
Outer Diameter Gas Pipe mm Ф12 Φ12
Max Distance Height m 10 10
Max Distance Length m 20 20
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.

4Technical Information
Service Manual
2.2 Capacity Curve in Different Outdoor Temperature
2.3 Cooling Data Sheet in Rated Frequency
Cooling
Capacity ratio(%)
Outdoor temp.(ºC)
50
60
70
80
90
100
110
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Conditions
Indoor:DB27ºC WB19 ºC
Indoor air flow: Super High
Pipe length: 5m
Heating
Outdoor temp.(ºC)
Capacity Ratio(%)
0
20
40
60
80
100
120
-7 -5 -3 05
10
Conditions
Indoor:DB20 ºC
Indoor air flowSupper High
Pipe length5m
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 All models 0.4~0.6 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 All models 1.5~1.75 in:75~85
out:37~43
in:1~3
out:2~5 Super High High
Cooling:
Heating:

5
Technical Information
Service Manual
H
D
W
78
88
35
103462 148
Φ55 Φ55
35
90
150
54
168.5462 159.5
Φ55 Φ55
54
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Models W H D
All models 790 275 200

6Technical Information
Service Manual
714
776
510
286
257
320
540
3.2 Outdoor Unit
Unit:mm
LM012HO-100V232-1X
LM012CO-100V232-1X
Unit:mm
714 257
540
286
320
776
510

7
Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:1/2" (12mm)
Indoor unit Outdoor unit
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
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
Strainer
Strainer Strainer
Capillary
Capillary
Compressor
Compressor
Accumlator
Cooling:
Cooling and Heating