Samsung AM140KXVAGH/ET - User Manual

AIR CONDITIONER CONTENTS
SYSTEM AIR CONDITIONER
OUTDOOR UNIT
AM080/100/120/140/160/180/200/220/240/2606XV666
AM080/100/120/140/160/180/200/220JXVA66
AM140/160/180/200/220/240/260/280/300KXV666
AM080/100/120/140/160/180/200/220/240/260/280/300MXVA6C
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram and Parts List
6. Wiring Diagram
7. Cycle Diagram
8. Key Options
9. Test Operation

Samsung AM140KXVAGH/ET Specifications

General

Brand	Samsung
Model	AM140KXVAGH/ET
Category	Air Conditioner
Language	English

Summary

1. Precautions

1-1 Precautions for the Service

Essential safety and handling guidelines for servicing the air conditioner.

1-2 Precautions for the Static Electricity and PL

Guidelines for handling static electricity and potential hazards during service.

1-3 Precautions for the Safety

General safety precautions to prevent electrical shock and other hazards.

1-4 Precautions for Handling Refrigerant for Air Conditioner

Safety measures for handling refrigerant during air conditioner maintenance.

1-5 Precautions for Welding the Air Conditioner Pipe

Safety guidelines and procedures for welding air conditioner pipes.

1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant

Instructions for safely adding refrigerant to the air conditioner.

3. Disassembly and Reassembly

3-1 Necessary Tools

List of essential tools required for disassembly and reassembly procedures.

3-2 Disassembly and Reassembly

Step-by-step procedures for disassembling and reassembling components.

3-2-1 AM080;100;120 XV

Disassembly and reassembly procedures for specific outdoor unit models.

3-2-3 AM160;180;200;220;240;260 XV, AM140 JXVH, AM140;160;180;200 MXVAFC

Disassembly and reassembly steps for specific outdoor unit models.

3-2-4 AM140;160 KXVG, AM140;160;180 KXVA, AM140;160;180 MXVAGC

Disassembly and reassembly steps for specific outdoor unit models.

3-2-5 AM180;200;220 KXVG, AM200;220 KXVA, AM200;220 MXVAGC

Disassembly and reassembly steps for specific outdoor unit models.

3-2-6 AM240;260;280;300 KXV, AM080 KXVS, AM240;260;280;300 MXVAGC

Disassembly and reassembly steps for specific outdoor unit models.

3-3 Caution at compressor exchange

Important cautionary steps and order for compressor replacement.

Check point at compressor replacement

Key points to check before and after compressor replacement.

4. Troubleshooting

4-2 Service Operation

Detailed procedures for various service operations on the unit.

4-2-1 Special Operation

Specific service operations and their key inputs.

4-3 Appropriate Measures for Different Symptom

Troubleshooting guidance based on specific operational symptoms.

4-3-1 Outdoor Unit Test Operation Flow

Flowchart for performing the outdoor unit test operation.

4-3-2 Main PCB has no power phenomenon

Troubleshooting steps for when the main PCB shows no power.

4-3-3 Communication Error between Indoor and Outdoor Units during Tracking

Troubleshooting steps for communication errors during tracking.

4-3-4 Communication Error between Indoor and Outdoor Units after Tracking

Troubleshooting steps for communication errors after tracking.

4-3-5 Communication error between main and sub Unit of outdoor unit or between outdoor units

Troubleshooting communication errors between outdoor unit components.

4-3-6 Internal Communication error of the Outdoor Unit C-Box

Troubleshooting internal communication errors within the outdoor unit C-Box.

4-3-7 Internal PCB Communication error of the Outdoor Unit C-Box

Troubleshooting internal PCB communication errors in the C-Box.

4-3-8 MCU branch part setup error - inconsecutive connection with the use of 2 branch parts

Troubleshooting MCU setup errors related to branch part connections.

4-3-9 MCU branch part setup error - Repeated setup for the same address over 3 times

Troubleshooting MCU setup errors for repeated address configurations.

4-3-10 MCU branch part setup error - non-installed address setup

Troubleshooting MCU setup errors for non-installed addresses.

4-3-11 Setup Error for MCU Branch part - Setup Error for MCU Quantity Used

Troubleshooting MCU setup errors related to incorrect MCU quantity.

4-3-12 MCU branch part setup error - Overlapping Indoor unit Address setup

Troubleshooting MCU setup errors for overlapping indoor unit addresses.

4-3-13 MCU branch part setup error - Set as being used without connection to an Indoor unit

Troubleshooting MCU setup errors for unused branch parts.

4-3-14 MCU branch part setup error - Connect an Indoor unit to a branch part not being used

Troubleshooting MCU setup errors for connecting to unused branch parts.

4-3-15 MCU branch part setup error - Connect more Indoor units than what is actually set up in MCU

Troubleshooting MCU setup errors for exceeding the set indoor unit quantity.

4-3-16 MCU;MCU subcooler entrance;exit sensor error (Open;Short)

Troubleshooting MCU subcooler sensor errors (open/short).

4-3-17 Outdoor Temperature Sensor Error

Troubleshooting for outdoor temperature sensor errors.

4-3-18 Cond Out Temperature Sensor Error (Open;Short)

Troubleshooting for condenser outlet temperature sensor errors.

4-3-19 Outdoor Cond Out sensor breakaway error

Troubleshooting for outdoor condenser sensor breakaway errors.

4-3-20 Compressor Discharge or Top 1;2 Temperature sensor error

Troubleshooting compressor discharge or top temperature sensor errors.

4-3-21 Compressor Discharge or Top temperature sensor breakaway error

Troubleshooting compressor discharge/top sensor breakaway errors.

4-3-22 Suction Temperature sensor error (Open;Short)

Troubleshooting suction temperature sensor errors (open/short).

4-3-23 High Pressure sensor error (Open;Short)

4-3-24 Low Pressure sensor error (Open;Short)

4-3-25 Suction-2 Temperature Sensor Error (OPEN;SHORT)

4-3-26 Liquid Pipe Temperature sensor error (Open;Short)

4-3-27 EVI In Temperature sensor error (Open;Short)

4-3-28 EVI Out Temperature sensor error (Open;Short)

4-3-29 Suction-2 Temperature Sensor Error (OPEN;SHORT)

4-3-30 Measures of other outdoor unit error

4-3-31 Comp. Down due to High Pressure Protection Control

4-3-32 Comp. Down due to Low Pressure Protection Control

4-3-33 Suspension of starting due to Compressor discharge temperature sensor; Top temperature sensor

4-3-34 3-phase Input Wiring error

4-3-35 Suspension of starting by abnormal compression ratio

4-3-36 EVI EEV Open error

4-3-37 Refrigerant leakage error

4-3-38 Prevention of heating; cooling operation due to outdoor temperature

4-3-39 Prevention of heating refrigerant charge due to outdoor temperature

4-3-40 CH wire breaking error

4-3-41 Fan starting error

4-3-42 Fan lock error

4-3-43 Momentary Blackout error

4-3-44 Outdoor Fan Motor overheating

4-3-45 Fan IPM Overheat error

4-3-46 Compressor starting error

4-3-47 COMP Overcurrent error

4-3-48 Overvoltage; Low voltage error

4-3-49 DC Link voltage sensor error

4-3-50 Fan Motor Overcurrent error

4-3-51 Input; Output Current sensor error

4-3-52 Outdoor Fan PCB Overvoltage; Low voltage error

4-3-53 Hall IC(Fan) error

4-3-54 Inverter Overheat error

4-3-55 Option setting error of outdoor unit

4-3-56 Error due to using single type outdoor unit in a module installation

4-3-57 Indoor unit and MCU address duplication error

6. Wiring Diagram

6-1 AM080;100;120;140;160;180;200;220 FXV, AM080;100;120;140;160;180;200;220 JXV, AM140;200;220 KXVA, AM140;180;200;220 KXVG

6-2 AM240;260 HXV, AM240;260 JXV, AM160;180;240;260;280;300 KXVA, AM160;240;260;280 KXVG, AM080 KXVS

6-3 AM080 JXVAFH

6-4 AM100;120 JXVAFH

6-5 AM140;160;180;200 JXVAFH

6-6 AM080;100;120;140;160;180;200;220 JXVAJH

6-7 AM100;120;180;200 MXVAFC, AM160;180;260;280;300 MXVAGC

6-8 AM100;120;180;200 MXVAFC, AM160;180;260;280;300 MXVAGC

9. Test Operation

9-1 Auto Trial Operation

9-1-1 Auto Trial Operation Synopsis

9-1-2 Auto Trial Operation functions

9-1-3 How to troubleshoot of the Undetermined

9-2 Amount of refrigerant automatically checking