Samsung AM220KXVAGH/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 AM220KXVAGH/ET Specifications

General

Brand	Samsung
Model	AM220KXVAGH/ET
Category	Air Conditioner
Language	English

Summary

Precautions

Product Specifications

2-2-1 Outdoor Unit

Detailed specifications for the outdoor unit, covering type, model, power, capacity, and fan.

Outdoor Unit (cont.)

Specifications for AM240KXVAGH/ET through AM300KXVAGH/ET, covering dimensions and operating ranges.

Disassembly and Reassembly

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

Disassembly and reassembly steps for electrical parts of specific outdoor unit models.

3-2-1 AM080/100/120XV*** (cont.)

Disassembly steps for refrigerant cooling parts and internal components of specific outdoor unit models.

3-2-2 AM140FXVAGH, AM140JXVGH

Disassembly and reassembly steps for electrical parts of AM140FXVAGH and AM140JXVGH models.

3-2-2 AM140FXVAGH, AM140JXVGH (cont.)

Disassembly steps for refrigerant cooling parts and internal components of specific outdoor unit models.

3-2-3 AM160/180/200/220/240/260XV***, AM140JXV***H, AM140/160/180/200MXVAFC

Disassembly steps for electrical parts of specific outdoor unit models, including cabinet and control box.

3-2-3 AM160/180/200/220/240/260XV*** (cont.)

Disassembly steps for refrigerant cooling parts and internal components of specific outdoor unit models.

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

Disassembly steps for electrical parts of specific outdoor unit models, including cabinet and control box.

3-2-5 AM180/200/220KXVG** (cont.)

Disassembly steps for refrigerant cooling parts and internal components of specific outdoor unit models.

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

Disassembly steps for electrical parts of specific outdoor unit models, including cabinet and control box.

3-2-6 AM240/260/280/300KXV*** (cont.)

Disassembly steps for refrigerant cooling parts and internal components of specific outdoor unit models.

Troubleshooting

Discharge Mode Operation

Procedure for discharging high DC voltage from the inverter PCB before handling it.

4-2-2 DVM S Models EEPROM Code Table

Table mapping DVM S models to Inverter PBA and EEP codes for troubleshooting.

DVM S Models EEPROM Code Table (cont.)

Continuation of the EEPROM code table for DVM S models, including ASSY PCB INVERTER.

Diagnosis and Adjustment (Error Code)

Explanation of error codes related to indoor unit communications, settings, and hardware.

Diagnosis and Adjustment (Error Code) (cont.)

Explanation of error codes related to compressor, Fan, and inverter PBA for outdoor units.

4-3-1 Outdoor Unit Test Operation Flow

Flowchart detailing the steps for performing an outdoor unit test operation.

Reversed Phase/No Phase Check (Outdoor Unit with 3 Phase power) – Display E425 for Problem

Procedure to check for reversed or missing phase on 3-phase power systems, indicated by E425 error.

Initial Tracking (Communication Check-up) - Display E201 for Problem

Procedure for initial tracking and communication check, displaying E201 if issues arise.

4-3-2 Main PCB has no power phenomenon

Troubleshooting steps for the Main PCB when it has no power, indicated by a blank 7-segment display.

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

Troubleshooting steps for communication errors between indoor and outdoor units during tracking.

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

Troubleshooting steps for communication errors that occur after tracking, focusing on PCB address and cable checks.

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

Troubleshooting for communication errors between main/sub outdoor units or between multiple outdoor units.

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

Troubleshooting steps for internal communication errors within the outdoor unit's C-Box.

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

Troubleshooting steps for internal PCB communication errors within the outdoor unit's C-Box (E206 C001, C002).

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

Troubleshooting steps for internal PCB communication errors within the outdoor unit's C-Box (E206 C003, C004).

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

Troubleshooting for MCU branch setup errors when using 2 branch parts without consecutive connection.

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

Troubleshooting for MCU branch setup errors due to repeated address setup for the same address more than 3 times.

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

Troubleshooting for MCU branch setup errors when an indoor unit is not installed but registered.

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

Troubleshooting for MCU branch setup errors related to incorrect MCU quantity or duplicated addresses.

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

Troubleshooting for MCU branch setup errors due to overlapping indoor unit address setup.

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

Troubleshooting for MCU branch setup errors when the branch part is used but not connected to an indoor unit.

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

Troubleshooting for MCU branch setup errors when an indoor unit is connected to an unused branch part.

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

Troubleshooting for MCU branch setup errors when the number of connected indoor units exceeds the MCU setup.

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

Troubleshooting for MCU/Subcooler sensor errors (Open/Short), involving resistance checks.

4-3-17 Outdoor Temperature Sensor Error

Troubleshooting for outdoor temperature sensor errors (Open/Short), involving connector and resistance checks.

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

Troubleshooting for Cond Out temperature sensor errors (Open/Short), involving connector and resistance checks.

4-3-19 Outdoor Cond Out sensor breakaway error

Troubleshooting for outdoor Cond Out sensor breakaway errors, including attachment and resistance checks.

4-3-19 Outdoor Cond Out sensor breakaway error (cont.)

Continuation of troubleshooting for outdoor Cond Out sensor breakaway errors, including resistance and path checks.

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

Troubleshooting for compressor discharge or top temperature sensor errors, involving connector and resistance checks.

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

Troubleshooting for compressor discharge/top sensor breakaway errors, including attachment and resistance checks.

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

Troubleshooting for suction temperature sensor errors (Open/Short), involving attachment and resistance checks.

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

Troubleshooting for high pressure sensor errors (Open/Short), involving connector, voltage, and pressure checks.

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

Troubleshooting for low pressure sensor errors (Open/Short), involving connector, voltage, and refrigerant checks.

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

Troubleshooting for suction-2 temperature sensor errors, involving connector and resistance checks.

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

Troubleshooting for liquid pipe temperature sensor errors, involving connector and resistance checks.

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

Troubleshooting for EVI In temperature sensor errors, involving connector and resistance checks.

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

Troubleshooting for EVI Out temperature sensor errors, involving connector and resistance checks.

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

Troubleshooting for suction-2 temperature sensor errors, involving connector and resistance checks.

4-3-30 Measures of other outdoor unit error

Troubleshooting measures for various outdoor unit errors, including fan and compressor connection issues.

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

Troubleshooting for compressor down errors caused by high pressure protection, involving sensor and valve checks.

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

Continuation of troubleshooting for compressor down errors due to high pressure protection, involving water pipes and EEV checks.

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

Troubleshooting for compressor down errors caused by low pressure protection, involving sensor and valve checks.

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

Continuation of troubleshooting for compressor down errors due to low pressure protection, involving water pipes and refrigerant checks.

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

Troubleshooting for startup suspension due to discharge/top temperature sensor errors, involving resistance checks.

4-3-34 3-phase Input Wiring error

Troubleshooting steps for 3-phase input wiring errors, checking power connections, reactor, and EMI PCB.

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

Troubleshooting for startup suspension due to abnormal compression ratio, involving sensor and valve checks.

4-3-36 EVI EEV Open error

Troubleshooting for EVI EEV open errors, involving connector, coil, intercooler, and indoor EEV checks.

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

4-3-40 CH wire breaking error (cont.)

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

Compressor starting error (cont.)

4-3-47 COMP Overcurrent error

Inverter Overcurrent error (cont.)

4-3-48 Overvoltage / Low voltage error

4-3-49 DC Link voltage sensor error

4-3-50 Fan Motor Overcurrent error

Fan Motor Overcurrent error (cont.)

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

PCB Diagram and Parts List

Wiring Diagram

6-1 AM080/100/120/140/160/180/200/220FXV***, AM080/100/120/140/160/180/200/220JXV***, AM140/200/220KXVA, AM140/180/200/220KXVG***, AM080KXVS***

6-2 AM240/260HXV***, AM240/260JXV***, AM160/180/240/260/280/300KXVA***, AM160/240/260/280KXVG***, AM080KXVS***

Test Operation

9-1 Auto Trial Operation

9-1-1 Auto Trial Operation Synopsis

Inspection item of the Auto Trial Operation

9-1-2 Auto Trial Operation functions

How to troubleshoot of the "Undetermined"

Outdoor Unit Temperature sensor

High / Low pressure sensor (Module installed)

Pressure sensor (Independent installation)

Service Valve

Abnormal operation of the Compressor

Cycle status

4Way Valve

EVI EEV

Main EEV

Auto Trial Operation Error Code

9-2 Amount of refrigerant automatically checking