Samsung AM280KXVANH/TL 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 AM280KXVANH/TL Specifications

General

Brand	Samsung
Model	AM280KXVANH/TL
Category	Air Conditioner
Language	English

Summary

Precautions

1-1 Precautions for the Service

1-2 Precautions for the Static Electricity and PL

1-3 Precautions for the Safety

1-4 Precautions for Handling Refrigerant for Air Conditioner

1-5 Precautions for Welding the Air Conditioner Pipe

1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant

Product Specifications

Disassembly and Reassembly

3-2 Disassembly and Reassembly

3-2-1 AM080/100/120XV***

3-2-2 AM140FXVAGH, AM140JXVGH

3-2-3 AM160/180/200/220/240/260XV, AM140JXVH, AM140/160/180/200MXVAFC

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

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

3-2-6 AM240/260/280/300KXV, AM080KXVS, AM240/260/280/300MXVAGC

Troubleshooting

4-2 Service Operation

4-2-1 Special Operation

4-3 Appropriate Measures for Different Symptom

Troubleshooting flowcharts and procedures for various system symptoms and errors.

4-3-1 Outdoor Unit Test Operation Flow

4-3-2 Main PCB has no power phenomenon

Diagnostic steps for troubleshooting when the main PCB shows no power.

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

Troubleshooting steps for communication errors occurring during tracking between units.

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

Troubleshooting steps for communication errors that appear after the tracking process.

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

Procedures for diagnosing communication errors within the outdoor unit or between outdoor units.

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

Troubleshooting steps for internal communication errors within the Outdoor Unit C-Box.

4-3-7 Internal PCB Communication error of the Outdoor Unit C-Box (cont.)

Further troubleshooting for internal PCB communication errors within the Outdoor Unit C-Box.

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

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

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

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

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

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

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

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

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

Troubleshooting for open/short errors in MCU/Subcooler entrance/exit sensors.

4-3-17 Outdoor Temperature Sensor Error

Troubleshooting steps for errors related to the outdoor temperature sensor.

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

Troubleshooting for open/short errors in the Cond Out temperature sensor.

4-3-19 Outdoor Cond Out sensor breakaway error

Troubleshooting for outdoor Cond Out sensor breakaway errors.

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

Troubleshooting for errors related to compressor discharge or top temperature sensors.

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

Troubleshooting for breakaway errors in compressor discharge or top temperature sensors.

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

Troubleshooting for open/short errors in the suction temperature sensor.

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

Troubleshooting for open/short errors in the high-pressure sensor.

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

Troubleshooting for open/short errors in the low-pressure sensor.

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

Troubleshooting for open/short errors in the suction-2 temperature sensor.

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

Troubleshooting for open/short errors in the liquid pipe temperature sensor.

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

Troubleshooting for open/short errors in the EVI In temperature sensor.

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

Troubleshooting for open/short errors in the EVI Out temperature sensor.

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

Troubleshooting for open/short errors in the suction-2 temperature sensor.

4-3-30 Measures of other outdoor unit error

General troubleshooting measures for various other outdoor unit errors.

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

Troubleshooting for compressor shutdown due to high-pressure protection control.

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

Troubleshooting for compressor shutdown due to low-pressure protection control.

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

Troubleshooting for startup suspension caused by compressor discharge or top temperature sensor issues.

4-3-34 3-phase Input Wiring error

Troubleshooting for errors related to 3-phase input wiring issues.

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

Troubleshooting for startup suspension due to abnormal compression ratio.

4-3-36 EVI EEV Open error

Troubleshooting for EVI EEV open errors, including leakage checks.

4-3-37 Refrigerant leakage error

Troubleshooting steps for refrigerant leakage errors and sensor checks.

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

Troubleshooting for CH wire breaking errors, including sensor and PCB checks.

4-3-41 Fan starting error

Troubleshooting steps for fan starting errors, including motor and PCB checks.

4-3-42 Fan lock error

Troubleshooting for fan lock errors, including foreign objects and motor connection checks.

4-3-43 Momentary Blackout error

4-3-44 Outdoor Fan Motor overheating

Troubleshooting steps for outdoor fan motor overheating issues.

4-3-45 Fan IPM Overheat error

Troubleshooting for Fan IPM overheat errors, focusing on heat sink and assembly.

4-3-46 Compressor starting error

Troubleshooting for compressor starting errors, including PCB, valve, and connection checks.

4-3-47 COMP Overcurrent error

Troubleshooting for compressor overcurrent errors, checking wiring and PCB.

4-3-48 Overvoltage / Low voltage error

Troubleshooting for overvoltage or low voltage errors related to power input and EMI PCB.

4-3-49 DC Link voltage sensor error

Troubleshooting for DC Link voltage sensor errors, checking connectors and PCBs.

4-3-50 Fan Motor Overcurrent error

Troubleshooting for fan motor overcurrent errors, checking motor, wiring, and PCB.

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

Key Options

8-1 Outdoor unit option switch settings

8-2 How to set the key function of the outdoor unit

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"

Troubleshooting guide for "Undetermined" status related to indoor unit temperature sensors.

9-1-4 Auto Trial Operation Error Code

9-2 Amount of refrigerant automatically checking