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Lennox LI024CI-180P432 User Manual

Lennox LI024CI-180P432
100 pages
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Service Manual
Models: LI012CI-180P432 LI012CO-180P432
LI012HI-180P432 LI012HO-180P432
LI024CI-180P432 LI024CO-180P432
LI024HI-180P432 LI024HO-180P432
(Refrigerant R410A)
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Lennox LI024CI-180P432 Specifications

General IconGeneral
Tonnage2 Ton
Cooling Capacity24, 000 BTU/h
Refrigerant TypeR-410A
Voltage208/230V
Phase1
Sound Level (Outdoor Unit)74 dB
SEER18
Operating Temperature Range (Cooling)55°F to 125°F

Summary

Part I : Technical Information

1. Summary

Lists indoor unit models, outdoor unit models, and remote controller.

2. Specifications

Details specifications for indoor and outdoor units.

2.2 Operation Characteristic Curve

Details cooling and heating operation characteristic curves.

2.3 Capacity Variation Ratio According to Temperature

Details capacity variation based on outdoor temperature.

2.4 Cooling and Heating Data Sheet in Rated Frequency

Provides cooling and heating data at rated frequency.

2.5 Noise Curve

Presents noise level curves for indoor and outdoor units.

3. Outline Dimension Diagram

Provides diagrams and dimensions for indoor and outdoor units.

4. Refrigerant System Diagram

Illustrates refrigerant flow diagrams for different model groups.

5. Electrical Part

Details wiring diagrams, PCB layouts, and electrical components.

6. Function and Control

Explains remote controller functions, unit modes, and system controls.

3. Special Functions

Defrosting Control

Conditions for starting and finishing defrosting operations.

Control Logic and Protection Mechanisms

Details control logic for components and various protection/failure detection functions.

6. Electric Heating Function of Chassis

7. Electric Heating Function of Compressor

Part II : Installation and Maintenance

7. Notes for Installation and Maintenance

General safety precautions for installation and maintenance.

Main Tools for Installation and Maintenance

Lists and illustrates essential tools for installation and maintenance.

8. Installation

Provides guidance and diagrams for the installation process.

8.2 Installation Parts-checking

Lists parts to be checked before commencing installation.

8.3 Selection of Installation Location

Details requirements for selecting indoor and outdoor unit locations.

8.4 Requirements for Electric Connection

Outlines safety and grounding requirements for electrical connections.

8.5 Installation of Indoor Unit

Step-by-step guide for installing the indoor unit.

8.6 Installation of Outdoor Unit

Step-by-step guide for installing the outdoor unit.

8.7 Vacuum Pumping and Leak Detection

Procedures for vacuum pumping and detecting refrigerant leaks.

8.8 Check after Installation and Test Operation

Checklist and steps for test operation after installation.

9. Maintenance

9.1 Error Code List

Table listing error codes and their corresponding malfunctions.

9.2 Troubleshooting for Main Malfunction

Diagnosis and troubleshooting steps for main unit malfunctions.

9.3 Troubleshooting for Normal Malfunction

Troubleshooting common normal malfunctions and issues.

10. Exploded View and Parts List

10.1 Indoor Unit

Exploded view and parts list for the indoor unit.

10.2 Outdoor Unit

Exploded view and parts list for the outdoor unit.

11. Removal Procedure

11.1 Removal Procedure of Indoor Unit

Step-by-step guide for disassembling the indoor unit.

11.2 Removal Procedure of Outdoor Unit

Step-by-step guide for disassembling the outdoor unit.

Appendix:

Appendix 1: Reference Sheet of Celsius and Fahrenheit

Conversion table for temperature units.

Appendix 2: Configuration of Connection Pipe

Guidelines for connection pipe configuration and refrigerant charging.

Appendix 3: Pipe Expanding Method

Detailed steps for proper pipe expanding.

Appendix 4: List of Resistance for Temperature Sensor

Resistance tables for various temperature sensors.

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