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LI036CO-180P432
Lennox LI036CO-180P432 Service Manual
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Service Manual
Model:
LI036CI-180P432 LI036CO-180P432
(Refrigerant R410A)
2
Table of Contents
Default Chapter
2
Table of Contents
2
Part Ⅰ : Technical Information
4
Specification Sheet
5
Operation Characteristic Curve
7
Capacity Variation Ratio According to Temperature
7
Compressor Frequency(Hz)
7
Cooling
7
Noise Curve
8
Indoor Side Noise
8
Outdoor Side Noise
8
Cooling and Heating Data Sheet in Rated Frequency
8
1 Summary
4
Indoor Unit
4
Outdoor Unit
4
3 Outline Dimension Diagram
9
Indoor Unit
9
Outdoor Unit
10
4 Refrigerant System Diagram
11
5 Electrical Part
12
Wiring Diagram
12
Instruction
12
PCB Printed Diagram
14
Top View
14
Bottom View
14
6 Function and Control
16
Remote Controller Introduction
16
Buttons on Remote Controller
16
Introduction for Icons on Display Screen
16
MODE Button
17
FAN Button
17
I FEEL Button
17
SLEEP Button
17
TIMER-ON Button
18
CLOCK Button
18
TIMER-OFF Button
18
TURBO Button
18
Replacement of Batteries in Remote Controller
19
Brief Description of Modes and Functions
20
Basic Function of System
20
Cooling Mode
20
Drying Mode
20
I Feel Control Mode
21
Compulsory Defrosting Function
21
Exit Compulsory Defrosting Mode
21
Refrigerant Recovery Function
21
Outdoor Units
22
Input Parameter Compensation and Calibration
22
Check Effective Judgment Controls of Parameters
22
Judgment of Exhaust Detection Temperature Change
22
Special Functions
23
Control Logic
23
Defrosting Control
23
Outer Fans Control
23
Starting Estimation
24
Frequency Limited
24
Reducing Frequency at Normal Speed
24
Reducing Frequency at High Speed
24
Voltage Sag Protection
26
Communication Fault
26
Module Protection
26
Module Overheating Protection
26
Starting-Up Failure Protection for Compressor
27
Out-Of-Step Protection for Compressor
27
Voltage Abnormity Protection for DC Bus
27
PFC Protection
27
Electric Heating Function of Chassis
28
Electric Heating Function of Compressor
28
Safety Precautions
29
Electrical Safety Precautions
29
Part Ⅱ : Installation and Maintenance
29
7 Notes for Installation and Maintenance
29
Safety Precautions for Installing and Relocating the Unit
30
Main Tools for Installation and Maintenance
31
Installation Dimension Diagram
32
Start Installation
33
Installation of Indoor Unit
34
Installation Parts-Checking
34
Requirements for Electric Connection
34
Selection of Installation Location
34
Connect the Pipe of Indoor Unit
35
Install Drain Hose
35
Install Wall-Mounting Frame
35
Outlet Pipe
35
Bind up Pipe
36
Connect Wire of Indoor Unit
36
Hang the Indoor Unit
36
Connect Outdoor Electric Wire
37
Fix the Support of Outdoor Unit
37
Install Drain Joint
37
Installation of Outdoor Unit
37
Check after Installation and Test Operation
38
Leakage Detection
38
Vacuum Pumping and Leak Detection
38
Displaying Part
39
Instruction to LCD Display
39
LCD Display of Wired Controller
39
Wired Controller
39
Buttons
40
Functions of Buttons
40
Layout of Buttons
40
Mode Setting
41
On/Off
41
Operation Instructions
41
Temperature Setting
41
Cancel Timer
42
Timer off Setting
42
Timer off Setting under the “On” State of the Unit
42
Timer on Setting under the “Off” State of the Unit
42
Sleep Setting
43
Swing Setting
43
Turbo Setting
44
Blow Setting
45
E-Heater Setting
45
Installation and Dismantlement
46
Lock
46
Memory
46
Other Functions
46
Errors Display
48
9 Troubleshooting
49
Flashing LED of Indoor/Outdoor Unit and Primary Judgement
49
Analysis or Processing of some of the Malfunction Display
57
Compressor Discharge Protection
57
Low Voltage Overcurrent Protection
57
Communic Ation Malfunction
57
How to Check Simply the Main Part
58
Malfunction of Temperature Sensor F1, F2
58
Main Detection Points
58
Malfunction Diagnosis Process
58
Malfunction of Blocked Protection of IDU Fan Motor H6
59
Malfunction of Protection of Jumper Cap C5
60
Malfunction of Overcurrent Protection E5
61
Malfunction of Communication E6
63
Fault Diagnosis Process
64
IPM Protection, Out-Of-Step Fault, Compressor Phase Overcurrent
65
High Temperature and Overload Protection Diagnosis
66
Start-Up Failure
67
Out of Step Diagnosis for the Compressor
68
Overload and Air Exhaust Malfunction Diagnosis
69
Power Factor Correct or (PFC) Fault
70
Communication Malfunction
71
High-Pressure Protection
73
Troubleshooting for Normal Malfunction
74
Air Conditioner Can't be Started up
74
Poor Cooling (Heating) for Air Conditioner
74
Horizontal Louver Can't Swing
74
ODU Fan Motor Can't Operate
75
Compressor Can't Operate
75
Air Conditioner Is Leaking
75
Abnormal Sound and Vibration
75
10 Exploded View and Parts List
76
Indoor Unit
76
Outdoor Unit
78
Removal Procedure of Indoor Unit
80
Before Disassembly of the Unit
80
Remove Filter
80
Remove Display
81
Remove Panel
81
Remove Horizontal Louver
81
Remove Top Cover of Electric Box
82
Remove Front Case
82
Remove Earthing Wire
83
Remove Electric Box Cover
83
Remove Temperature Sensor
84
Remove Electric Box
84
Remove Water Tray
85
Remove Pipe-Stopping Plate
85
Remove Damping Board
85
Remove Evaporator
86
Remove the Fixing Plate of Motor
86
Remove Cross Flow Blade and Motor
87
Remove Cushion Rubber
88
Removal Procedure of Outdoor Unit
89
Remove Big Handle,Valve Cover and Top Cover
89
Remove Top Panel
89
Remove Front Side Panel
89
Remove Grille and Panel
90
Remove Right Side Plate
90
Remove Axial Flow Blade
90
Remove Motor
91
Remove Motor Support
92
Remove Isolation Sheet
92
Remove 4-Way Valve
92
Remove Gas Valve and Liquid Valve
93
Remove Valve Support
93
Remove Compressor
93
Remove Left Side Plate
94
Remove Chassis and Condenser
94
Set Temperature
95
Ambient Temperature
95
Appendix
95
Appendix 1: Reference Sheet of Celsius and Fahrenheit
95
Appendix 2: Configuration of Connection Pipe
95
Remove the Burrs
96
Cut the Pip
96
Put on the Union Nut
96
Appendix 3: Pipe Expanding Method
96
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor
97
Appendix 4: List of Resistance for Temperature Sensor
97
Resistance Table of Tube Temperature Sensors for Indoor and Outdoor
98
Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
99
Other manuals for Lennox LI036CO-180P432
Owner's Manual
56 pages
4
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Lennox LI036CO-180P432 Specifications
General
Refrigerant Type
R-410A
Phase
1
Voltage
208-230V
Tonnage
3 tons
Cooling Capacity
36000 BTU/h
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