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Samsung AM045NN4DEH Series Service Manual
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Samsung AM045NN4DEH Series Service Manual

System airconditioner, indoor unit
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See also: User Manual
SYSTEM AIRCONDITIONER
SYSTEM AIRCONDITIONER
INDOOR UNIT
AM045/056/071/090/112/128/140NN4DEH/**
AM015/022/028/036/045/056/060NNNDEH/**
AM009/012/018/024/036/048NN4DCH/**
AM005/007/009/012/018/020NNNDCH/**
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram and Parts List
6. Wiring Diagram
7. Reference Sheet

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Summary of Contents for Samsung AM045NN4DEH Series

  • Page 1 SYSTEM AIRCONDITIONER INDOOR UNIT AM045/056/071/090/112/128/140NN4DEH/** AM015/022/028/036/045/056/060NNNDEH/** AM009/012/018/024/036/048NN4DCH/** AM005/007/009/012/018/020NNNDCH/** SYSTEM AIRCONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram and Parts List 6. Wiring Diagram 7. Reference Sheet...

  • Page 2: Table Of Contents

    Contents 1. Precautions ..........................5 1-1 Precautions for the Service ........................5 1-2 Precautions for the Static Electricity and PL .................... 5 1-3 Precautions for the Safety ......................... 5 1-4 Precautions for Handling Refrigerant for Air Conditioner ..............6 1-5 Precautions for Welding the Air Conditioner Pipe .................. 6 1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant ..........
  • Page 3 Contents 4-4-34 Setup Error for MCU Branch part – Setup Error for MCU Quantity Used ..........82 4-4-35 MCU branch part setup error – Overlapping Indoor unit Address setup ..........83 4-4-36 MCU branch part setup error – Set as being used without connection to an Indoor unit ...84 4-4-37 MCU branch part setup error –...
  • Page 4 Contents 4-4-96 Breakaway of Flow switch ............................... 144 4-4-97 Thermostat Wiring Error .............................145 4-4-98 DC FAN Motor Feedback Error ..........................146 4-4-99 Water Tank Sensor defective ............................147 5. PCB Diagram and Parts List ....................148 5-1 Indoor Unit .............................. 148 5-1-1 Wind-free 4way cassette type, mini 4way cassette ..................148 6.

  • Page 5: Precautions

    ● Explain to workers that the battery for the remote control needs to be separated for storage purposes when the product will not be used for a long time. – This can cause a problem for the remote control since battery fluid may trickle out. Samsung Electronics...

  • Page 6: Precautions For Handling Refrigerant For Air Conditioner

    If the compressor is operating while the refrigerant pipe is not correctly connected and the service valve is opened, then air and other substances can enter the pipe. The interior of the refrigerant cycle may then build up excessive high pressure resulting in explosion and damage. Samsung Electronics...

  • Page 7: Product Specifications

    - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...
  • Page 8 - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...
  • Page 9 - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...
  • Page 10 - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...
  • Page 11 - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...
  • Page 12 - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m, Level differences : 0m *4) Sound pressure was acquired in a dead room. This actual noise level may be different depending on the installation conditions. *5) Specifications may be subject to change without prior notice for product improvement. Samsung Electronics...

  • Page 13: Accessory And Option Specifications

    Power distribution MIM-B16N DVM Series, FJM MIM-C02N DVM Series, FJM, CAC Converter MIM-N00 Multi Tenant Function Controller MCM-C210 ※ DVM Series : DVM mini, DVM PLUS III, DVM PLUS III HR, DVM PLUS IV, DVM PLUS IV HR Samsung Electronics...
  • Page 14 HSP Duct 22.0/28.0kW MDP-N047SNC1D MSP Duct (9.0/11.2) kW MDP-M075SGU1D Duct (12.8/14.0) kW MDP-M075SGU2D HSP Duct (11.2/12.8/14.0) kW MSP Duct (5.6/7.1) kW MDP-M075SGU3D SlimDuct (1.7~14.0) kW MDP-E075SEE3D Drain Pump Option MDP-G075SQ (Internal installation) Global Duct GD-S Big Duct MDP-G075SP (External installation) Samsung Electronics...
  • Page 15 PC1NUSMAN Slim 1way cassette PC1NUPMAN 2 way cassette PC2NUSMEN Front panel Requisite Mini 4way cassette PC4SUSMAN Mini 4way cassette PC4SYSMEN 4 way cassette PC4NUSKAN 4 way cassette PC4NUSKEN 4 way cassette PC4NBSKAN PC4NUDMAN 360 cassette 360 cassette PC4NUNMAN Samsung Electronics...

  • Page 16: Disassembly And Reassembly

    3. Disassembly and Reassembly ■ Necessary Tools Item Remark +Screw Driver Monkey Spanner –Screw Driver Nipper Electric Motion Driver L-Wrench Samsung Electronics...

  • Page 17: Indoor Unit

    AM009/012/018/024/036/048NN4DCH/** Parts Procedure Remark Panel 1) Pull two levers below Samsung logo to open the grille. 2) Detach the safety clip and white link from the panel. 3) Remove the 2 fixed screws to remove the Control-Box Cover.(Use +Screw Driver) 4) Remove the 4 connector wires from the PBA.
  • Page 18 1) Disconnect the Connector Wire that is con- nected to the indoor unit’s PBA from the PBA. 2) Unscrew the 2 fixed screws on both sides of the Control Box, and disassemble the Control Box from the indoor unit. (Use +Screw Driver) Samsung Electronics...
  • Page 19 2) Push the Bell-Mouth in the direction opposite to where it’s installed on the Control-Box to remove it. Drain Pan 1) Unscrew the screws on the 4 corners of the indoor unit. (Use +Screw Driver) 2) Remove the Drain Pan from the indoor unit. Samsung Electronics...
  • Page 20 2) Detach the safity clip and take up the grille. 3) Remove the 2 fixed screws to remove the Control-Box Cover. (Use +Screw Driver) 4) Remove the Remocon-Receiver and Blade Connector Wire from the PBA. (3EA) Samsung Electronics...
  • Page 21 7) Press the Hangers at both sides of the panel inwards, to remove it from the indoor unit’s hook. Remove the panel from the indoor unit. Control-Box 1) Disconnect the Connector Wire that is connected to the indoor unit’s PBA. Samsung Electronics...
  • Page 22 (Use +Screw Driver) 1) Push the Bell-Mouth in the direction opposite to where it’s installed on the Control-Box to remove it. Drain Pan 1) Unscrew the screws on the 4 corners of the indoor unit. (Use +Screw Driver) Samsung Electronics...
  • Page 23 Disassembly and Reassembly Parts Procedure Remark Drain Pan 1) Remove the Drain Pan from the indoor unit. Samsung Electronics...

  • Page 24: Troubleshooting

    Set up the number of connected outdoor units (SMW200-10 black) MICOM. download (AS-PRO) For checking indoor unit communication (SMW200-07P white) (YW396-02P red) Transmitter 12V ERROR DISPLAY (YW396-02P blue) State Check Outdoor Unit Tact Switch (SMW250-04P red) EEPROM SOCKET Outdoor Unit Dip Switch Samsung Electronics...

  • Page 25: Service Operation

    (Natural discharge until Please wait for at least 15 minutes.) ※ If an error occurs, the discharge mode may not work properly. In particular, E464 & E364 is power devices can be damaged. Therefore, the discharge mode, do not use. Samsung Electronics...
  • Page 26 Indoor Unit Whole operation (The set temperature=3°C) Whole operation (The set temperature=40°C) Outdoor fan and valves Normally control conduct Operation time 60 minutes Etc. During the filling operation does not enter the special operation, such as oil recovery, defrost. Samsung Electronics...
  • Page 27 Operation side : 2000 Step , Stop side : 2000 step Maximum Operation Time 30 minutes Etc. Does not conduct the operation of the special operation, and protection control. Pressure and temperature is outside normal limits : Operation is shut down after gas pipe manually closed. Samsung Electronics...

  • Page 28: Vacuum Operation

    Discharge is complete, the power of the Inverter PCB and Fan PCB is being blocked, communication function is blocked, ► E206 will occur. If want operation again after complete discharge mode : Restart after K3 key to Reset or Power Reset. ► Samsung Electronics...

  • Page 29: Dvm S Models Eeprom Code Table

    EEP Code AM080FXVAGH/EU DB82-01358A AM100FXVAGH/EU DB82-01359A AM120FXVAGH/EU DB82-01360A AM140FXVAGH/EU DB82-01361A AM160FXVAGH/EU DB82-01362A AM180FXVAGH/EU DB82-01363A AM200FXVAGH/EU DB82-01364A AM220FXVAGH/EU DB82-01365A AM080FXVAGR/EU DB82-01330A AM100FXVAGR/EU DB82-01331A AM120FXVAGR/EU DB82-01332A AM140FXVAGR/EU DB82-01333A AM160FXVAGR/EU DB82-01334A AM180FXVAGR/EU DB82-01335A AM200FXVAGR/EU DB82-01336A AM220FXVAGR/EU DB82-01337A AM080FXMDGH/EU DB82-01774A AM090FXMDGH/EU DB82-01776A Samsung Electronics...

  • Page 30: Troubleshooting

    SEG10 → SEG11 and SEG12 → SEG14 and SEG15 → SEG16 and SEG17 → SEG18 and SEG20 → SEG21 and SEG22 → SEG23 and SEG24. On(SEG1~12) Off(SEG13~24) SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Samsung Electronics...
  • Page 31 Press High Fan button(∧) to enter SEG12 value. Each time you press the button, → → … → will be selected in rotation. SEG11 SEG12 10. Setting Auto mode Press Mode button to be changed to AUTO mode in the OFF status. Samsung Electronics...
  • Page 32 Press Mode button to be change to HEAT mode in the OFF status. 19. Setting SEG23, SEG24 mode Press Low Fan button(∨) to enter SEG23 value. Press High Fan button(∧) to enter SEG24 value. Each time you press the button, → → … → will be selected in rotation. Samsung Electronics...
  • Page 33 Check operation Step 5 1. Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit. 2. Take the batteries out of the remote controller and insert them again and then press the operation button. Samsung Electronics...
  • Page 34 SEG5 central control option is basically set as 1 (Use), so you don’t need to set the central control option additionally. However, if the central control is not connected but it doesn’t indicate an error message, you need to set the central control option as 0 (Disuse) to exclude the indoor unit from the central control. Samsung Electronics...
  • Page 35 Remote Controller Display Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details 0 or 1 channel 1 150 step Disuse Disuse Indication channel 2 and Details 2°C channel 3 0 step 5°C channel 4 Samsung Electronics...
  • Page 36 • The external output of SEG15 is generated via MIM-B14 connection. (Refer to the manual of MIM-B14.) • If you set the Individual control with remote control (SEG20) option to a value other than 0 to 4, it is automatically set to 0 (Indoor 1). Samsung Electronics...
  • Page 37 EEV step when Function Page Use of drain pump heater heating stops Indication Details Indication Details Indication Details Indication Details Disuse Default Disuse Indication and Use (*3) detail Noise Use with decreasing 3 minute setting delay Use (*3) Samsung Electronics...
  • Page 38 Turn out 0 or 1 Indoor 1 in 30 min. 2 °C Disuse 30 seconds without Oil return or Noise motion decreasing in Turn out defrost mode in 60 min. Indoor 2 5 °C Disuse 38 seconds without motion Samsung Electronics...
  • Page 39 (for maximum 20 minutes) although the indoor unit is turned off after the Cool mode is turned to the Heat mode. Samsung Electronics...
  • Page 40 Cool Time required for between indoor mode to Heat mode change units mode SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Control variables when the hot water heater or an external heater is used SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Samsung Electronics...

  • Page 41: Option Items

    AM018NNNDCH/** 0 1 5 0 4 F 1 9 5 4 7 F 2 0 3 8 3 8 3 3 0 0 0 1 AM020NNNDCH/** 0 1 5 0 4 F 1 9 5 5 9 1 2 0 3 C 3 C 3 3 0 0 0 3 Samsung Electronics...

  • Page 42: What To Check Before Diagnosis

    14. Simultaneous opening of cooling/heating MCU SOL valve (1st detection) E180 15. Simultaneous opening of cooling/heating MCU SOL valve (2nd detection) E181 Other outdoor unit self-diagnosis error that is not on the above list Flowating s/w (2nd detection) E153 EEPROM error E162 Samsung Electronics...
  • Page 43 When E108 error occurs, change the address and reset the system. Ex.) When address of the indoor unit #1 and #2 are set as 5, address of the indoor unit #1 will become 5 and indoor unit #2 will display E108, A002. Samsung Electronics...

  • Page 44: Number Display Method (Outdoor Unit, Mcu, Cable Remote Control, Wall-Mount, Etc.)

    Display method for error that occurred in Error Number  Outdoor unit address  E471  U200  E471  U200 outdoor unit Error Number, repeat display E206  C001  E206  C002 and other methods of error display Samsung Electronics...
  • Page 45 Communication error between main and sub outdoor units E-205 Communication error on all PBA within the outdoor unit C-Box, communication cable error E206-C001: HUB PBA communication error / E206-C002: FAN PBA communication error E-206 E206-C003: INV1 PBA communication error / E206-C004: INV2 PBA communication error Samsung Electronics...
  • Page 46 Error on top sensor of compressor 2 (Short or Open) E-291 Refrigerant leakage or error on high pressure sensor (Short or Open) E-296 Refrigerant leakage or error on low pressure sensor (Short or Open) E-308 Error on suction temperature sensor (Short or Open) Samsung Electronics...
  • Page 47 Cooling mode restriction due to low air temperature E-442 Refrigerant charing restriction in heating mode when air temperature is over 15 °C E-443 Operation prohibited due to the pressure drop E-445 CCH is deatched E-446 Error due to operation failure of Fan1 Samsung Electronics...
  • Page 48 Error due to exceeding maximum numbers of wired remote controller installation E-627 (2 units) E-633 Error caused by installing mixed models E-653 Remote controller's temperature sensor is disconnected or has problem E-654 Data error on remote controller (Memory read/write error) Samsung Electronics...
  • Page 49 Error due to incorrect thermostat connection E-915 Error on DC fan(Non-operating) E-917 Water Tank Sensor Configutation Error Trial operation incompleted (UnPrepared) - It will be cleared when trial operation was executed for 1 hour or when automatic inspection is completed Samsung Electronics...

  • Page 50: Appropriate Measures For Different Symptom

    UP will be dis- played. 2. Execute the automatic commissioning by Tact Switch. 3. UP display disappears after commissioning is complete, normal operation is possible. 4. Automatic commissioning is completed, if there is a history, nor- mal operation execution immediately. Samsung Electronics...

  • Page 51: Main Pcb Has No Power Phenomenon

    Check the short circuit of Hub PCB. Confirm a blinking of Hub PCB LED. Replace Hub PCB Did you check the connection status of the Main / Hub connection Connecting the communication wire. (CN96) wire? Replace Fan PCB Samsung Electronics...

  • Page 52: Indoor Unit Room Sensor Error (Open/Short)

    Ex) Room temp. 26°C – Resistance 0.926KΩ 12.1 18.0 27.3 43.0 At that time, is the resistance value significantly deviated from the temp. table? As it is due to an indoor oom temperature sensor defect, replace it. Re-start after replacing PCB. Samsung Electronics...

  • Page 53: Indoor Unit Evap In Sensor Error (Open/Short)

    Ex) Room temp. 26°C – Resistance 10.93KΩ 12.1 18.0 27.3 43.0 At that time, is the resistance value significantly deviated from the temp. table? As it is due to an indoor EVAP IN sensor defect, replace it. Re-start after replacing PCB. Samsung Electronics...

  • Page 54: Indoor Evap Out Sensor Error (Open/Short)

    12.1 18.0 27.3 43.0 At that time, is the resistance value significantly deviated from the temp. table? As it is due to an indoor EVAP OUT sensor defect, replace it. Re-start after replacing PCB. Samsung Electronics...

  • Page 55: Indoor Heat Exchanger's Evap In Sensor Dislocation Error

    12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Indoor EVA In sensor itself. Restart operation after replace the PCB. Samsung Electronics...

  • Page 56: Indoor Heat Exchanger's Eva Out Sensor Dislocation Error (Open/Short)

    12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Indoor EVA Out sensor itself. Restart operation after replace the PCB. Samsung Electronics...

  • Page 57: Imultaneous Indoor Heat Exchanger's Eva In, Out Sensor Dislocation Error (Open/Short)

    Indoor unit operation & Thermo On Simultaneous Indoor heat exchanger's Error details EVA IN, OUT sensor dislocation error 2. How to check Check if an Indoor heat exchanger's EVA IN, OUT sensor has been dislocated then is correct after assembling. Samsung Electronics...

  • Page 58: Electronic Expansion Valve Opening Malfunction (2Nd Stage)

    - Hydro Unit PCB k1, k2 switch : At the same time push for more than 4 seconds. - After resolving the cause of the error, restart operation. (Excessive reset operation, can cause damage to the Heat Exchanger.) Samsung Electronics...

  • Page 59: Breakdown Of Eev (2Nd)

    5) If there is no problem with the above checkup items, replace the electronic expansion valve of the troubled indoor unit. 4)- As an electronic expansion valve replacement is tricky work that requires collecting refrigerants in all systems, please check the above items before replacement. Samsung Electronics...

  • Page 60: Problem With Eev Closure (2Nd)

    5) If there is no problem with the above checkup items, replace the electronic expansion valve of the troubled indoor unit. 4)- As electronic expansion valve replacement is tricky work that requires collecting refrigerants in all systems, please check the above items before replacement. Samsung Electronics...

  • Page 61: Eev(Electronic Expansion Valve) Opening Malfunction (2Nd Stage)

    - Hydro Unit PCB k1, k2 switch : At the same time push for more than 4 seconds. - After resolving the cause of the error, restart operation. (Excessive reset operation, can cause damage to the Heat Exchanger.) Samsung Electronics...

  • Page 62: Eev(Electronic Expansion Valve) Closure Malfunction (2Nd Stage)

    Replace EEV coil After Resetting the Outdoor Unit, does an error occur even after running it again with the same combination? Normal operation of EEV. Replace EEV coil. Samsung Electronics...

  • Page 63: Detection Of Floating Switch Of Indoor Unit's Drain Pump

    Does the water level in the Drain Pan get lower? Replace Drain pump Replace Indoor Unit PCB Normal operation ● Float sensor error will be removed only when the remote controller Replace Drain pump for an indoor unit operates Samsung Electronics...

  • Page 64: The Operational Error Of Indoor Unit's Fan Motor

    2) If a fan motor operation capacitor is a PCB separating type, check the connection terminal. 3) Check the operational status of the fan motor. 4) If there is no problem with the above checkup items, replace the PCB. Samsung Electronics...

  • Page 65: Mixed Operation Error (Only Applicable To Heat Pump Model/Not To Hr Model)

    ● Check the operational mode of outdoor unit or other indoor unit then re-enter or stop the operational mode of the relevant unit. ● If it is necessary to apply a different operational mode to an indoor unit from others, please stop other indoor units then operate the indoor unit. Samsung Electronics...

  • Page 66: Eeprom Error

    Are there any problems such as short or dewetting between Replace PCB EEPROM PIN? If you restart after reentering model options and power reset, does the Normal operation error occur again? Replace PCB Samsung Electronics...

  • Page 67: Option Error Of The Remote Controller For An Indoor Unit

    ● Check relevant remote controller options for each model then enter correct options ● As this happens only in a Celsius setting model, it is necessary to reenter option codes for error-free models in a region where Celsius is used. Samsung Electronics...

  • Page 68: Simultaneous Opening Of Cooling/Heating Mcu Sol Valves 1St/2Nd

    Is a coil of MCU SOL VALVE Check the coil connection Correctly connected? and fasten it again When you restart it after replacing MCU SOL VALVE coils, does the Replace coils as they are defective. same error occur again? Replace MCU SOL VALVE BODY Samsung Electronics...

  • Page 69: Error Due To Incorrect Indoor Unit Power/Communication Cable Connection

    Criteria • Check for Power input(220V) for the Terminal block(F1/F2). Cause of problem • Apply power (220V) to the terminal of the indoor unit communication block (F1/F2) ● Check for disconnected line after turning off the Main power. Samsung Electronics...

  • Page 70: Spi Feedback Error

    1. How to check Is the SPI connector of an Connect the connector to PCB indoor unit separated from PCB? and reoperate 예 Can you measure 12V from #1, #4 power with SPI connector Replace SPI being connected? Replace Main PCB Samsung Electronics...

  • Page 71: Outdoor Unit Pipe Inspection Error

    ● Check if the indoor address settings are the same for the address of the indoor units connected to each port of the MCU and the address of the indoor units of the relevant MCU ports. ● Check if the indoor unit usage setup switch is turned on for the MCU port connected to the indoor unit. Samsung Electronics...

  • Page 72: Communication Error Between Indoor And Outdoor Units During Tracking

    If there is no peculiarity, then connect the indoor units one by one Check the communication cable and the connector to find the indoor unit that is interfering with the communication for of the outdoor unit PCB, and change the PCB. inspection and change the indoor unit PCB. Samsung Electronics...

  • Page 73: Communication Error Between Indoor And Outdoor Units After Tracking

    * Essential Requirements before Changing PCB in the indoor unit which interferes with the communication Case of Communication Error: Refer to p.50 to check and change the indoor unit PCB. Good Defective 0.7V 0.7V Samsung Electronics...

  • Page 74: Communication Error Between Main And Sub Unit Of Outdoor Unit Or Between Outdoor Units

    15V, 5V Check wiring of outdoor unit Change wiring or connect communication cable. Check K13 and K14 setup Change settings options for outdoor unit. Replace PCB. Essential Requirements before Changing PCB in Case of Communication Error: Refer to p.59 Samsung Electronics...

  • Page 75: Communication Error Between Mcu And Outdoor Unit

    MCU which interferes with the communication Change the communication cable and the connector to check and change the MCU PCB. of the outdoor PCB, and then change the PCB. ❈ Essential Requirements before Changing PCB in Case of Communication Error: Refer to p.4-80 Samsung Electronics...

  • Page 76: Internal Communication Error Of The Outdoor Unit C-Box

    1) Check the Main PCB : Main PCB TX circuit inspection Confirm a blinking of Fan PCB LD22, 32? 2) Check the Hub PCB : Hub PCB TX circuit inspection * Service after turn off the Main Power. Replace Main PCB Samsung Electronics...

  • Page 77: Internal Pcb Communication Error Of The Outdoor Unit C-Box

    Replace Hub PCB E206 C002 Check the connection status Lighting of Fan PCB LD41 did confirmation? (CN12 connector) Is Fan PCB CN13 connector accurately connected? Fan PCB CN13 connection Replace Fan PCB (Fan PCB TX part : Breakage) Samsung Electronics...

  • Page 78: Communication Error Between Mcu And Outdoor Unit After Tracking Is Completed

    MCU PCB. Connect each unit one by one, and find the MCU which interferes with communication to check and change the MCU PCB. ❈ Essential Requirements before Changing PCB in Case of Communication Error: Refer to p.4-80 Good Defective 0.7V 0.7V Samsung Electronics...

  • Page 79: Mcu Branch Part Setup Error - Inconsecutive Connection With The Use Of 2 Branch Parts

    MCU BOX #0 address setup MCU PCB Branch part use setup Setting error Indoor unit address Branch A Indoor unit MCU BOX #0 address setup MCU PCB Branch part use setup Setting error Indoor unit address Branch A Samsung Electronics Indoor unit...

  • Page 80: Mcu Branch Part Setup Error - Repeated Setup For The Same Address Over 3 Times

    Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press K3 button on the button to reset or turn it off to restart. MCU BOX #0 address setup MCU PCB Branch part use setup Setting error Indoor unit address Branch A Indoor unit Samsung Electronics...

  • Page 81: Mcu Branch Part Setup Error - Non-Installed Address Setup

    MCU BOX #0 MCU BOX #1 MCU PCB MCU PCB Branch part use setup Indoor unit address Branch A Branch A Indoor unit Outdoorunit Samsung Electronics Indoor unmber setup MCU unmber setup MCU address setup MCU BOX #0 MCU BOX #1...

  • Page 82: Setup Error For Mcu Branch Part - Setup Error For Mcu Quantity Used

    Setup for Indoor MCU Address Quantity Used Setup MCU Address Setup MCU BOX #0 MCU BOX #1 MCU PCB MCU PCB Setup for Using Branch Sphere Indoor Unit Address Branch Sphere A Branch Sphere A B Indoor Unit Samsung Electronics...

  • Page 83: Mcu Branch Part Setup Error - Overlapping Indoor Unit Address Setup

    MCU BOX #0 address setup MCU PCB Branch part use setup Indoor unit address Branch A MCU BOX #1 address setup MCU PCB Branch part use setup Indoor unit address Branch A MCU BOX #1 MCU PCB Branch A Samsung Electronics...

  • Page 84: Mcu Branch Part Setup Error - Set As Being Used Without Connection To An Indoor Unit

    Adjust the Dip switch that sets up the use of MCU branch part to ‘Not-Used'. After completing resetting, press the outdoor unit's Branch A K3 button to reset or turn off to restart. MCU BOX #1 MCU PCB Branch A MCU BOX #1 MCU address setup MCU PCB Branch part use setup Indoor unit address Branch A Indoor unit Samsung Electronics...

  • Page 85: Mcu Branch Part Setup Error - Connect An Indoor Unit To A Branch Part Not Being Used

    Check the actual use of the branch part. If it is used, turn on the Dip switch for branch part setup. After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. MCU BOX #1 MCU address setup MCU PCB Branch part use setup Indoor unit address Branch A Indoor unit Samsung Electronics...

  • Page 86: Mcu Branch Part Setup Error - Connect More Indoor Units Than What Is Actually Set Up In Mcu

    After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. Outdoor unit Indoor number setup MCU number setup MCU address setup MCU BOX #0 MCU BOX #1 MCU PCB MCU PCB Branch part use setup Indoor unit address Branch A Branch A Samsung Electronics...

  • Page 87: Outdoor Temperature Sensor Error

    PCB, measure the resistance value between the terminals. 12.1 18.0 27.3 Did the resistance 43.0 value significantly stray from the following temperature table? Replace this since it is the defective of the outdoor temperature sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 88: Outdoor Temperature Dislocation Error

    12.1 18.0 27.3 43.0 Does the resistance value greatly deviate from the temperature table to the next? As it is due to a problem with the outdoor temperature sensor, replace it. Restart after replacing the PCB Samsung Electronics...

  • Page 89: Cond Out Temperature Sensor Error (Open/Short)

    COND 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the outdoor Cond Out sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 90: Outdoor Cond Out Sensor Breakaway Error

    Is the Cond Out sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231) Are there any changes n the value of the sensor when operating from Blocked Sensor Path : stop to heating? Change heat exchanger Ass'y Complete Samsung Electronics...

  • Page 91: Digital Compressor Discharge Temperature Sensor Error (Open/Short)

    2 terminals. 32.0 59.0 200.0 242.0 362.0 553.0 Did the resistance value significantly stray from the following temperature table? Change this part as it is the fault of the discharge temperature sensor itself. Restart operation after changing PCB. Samsung Electronics...

  • Page 92: Constant Rate Compressor Discharge Temperature Sensor Error (Open/Short)

    59.0 200.0 242.0 362.0 553.0 Did the resistance value significantly stray from the following temperature table? Change this part as it is the fault of the constant rate compressor discharge temperature sensor itself. Restart operation after changing PCB. Samsung Electronics...

  • Page 93: Compressor Discharge Or Top 1/2 Temperature Sensor Error

    200.0 242.0 362.0 553.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Compressor Discharge or Top Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 94: Dislocation Error Of Compressor Sump Temperature (Oil Temperature) Sensor

    After 60 minutes of compressor operation, there will be no Sump sensor dislocation detection. 2. How to check 1) Check if a sensor of the relevant compressor has been dislocated in accordance with error code, assemble and correct the error. Samsung Electronics...

  • Page 95: Suction Temperature Sensor Breakaway Error

    ∙ Suction temperature sensor breakaway/defective. 1. Cause of problem Is Suction sensor Re-insert the sensor. and sensor Holder accurately Re-attach the sensor holder. attached? Is Suction sensor resistance value reasonable? Defective Sensor : Replace Sensor (Refer to E231 ) Complete Samsung Electronics...

  • Page 96: Sump Temperature Sensor Error (Open/Short)

    12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Change this part as it is the fault of the outdoor SUMP sensor itself. Restart operation after changing PCB. Samsung Electronics...

  • Page 97: High Pressure Sensor Error (Open/Short)

    (Please check by connecting the menu folder gauge to the service valve) Out of the PCB High Pressure Replace PCB sensor terminals, is there voltage between pins 3 and 4 5V? The ▼ mark is the 1st pin on the PCB. Replace High Pressure sensor Samsung Electronics...

  • Page 98: Low Pressure Sensor Error (Open/Short)

    Out of the PCB Low Pressure Replace PCB sensor terminals, is there voltage between pins 3 and 4 5V? The ▼ mark is the 1st pin on the PCB. Replace Low Pressure sensor Samsung Electronics...

  • Page 99: Suction Temperature Sensor Error (Open/Short)

    2 terminals. 12.1 SUCT 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor Suction sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 100: Liquid Pipe Temperature Sensor Error (Open/Short)

    2 terminals. LIQUID 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Liquid Pipe Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 101: Evi In Temperature Sensor Error (Open/Short)

    EVI-IN 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor EVI In Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 102: Evi Out Temperature Sensor Error (Open/Short)

    EVI-OUT 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of the Outdoor EVI Out Temperature sensor itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 103: Suction-2 Temperature Sensor Error (Open/Short)

    12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Change this part as it is the fault of the outdoor Suction-2 sensor itself. Restart operation after changing PCB Samsung Electronics...

  • Page 104: Comp. Down Due To High Pressure Protection Control

    Are there any blockage inside Pipe inspection the pipe? (filter etc.) Are the Outdoor Fan Replace relevant component operating normally for the cooling and the Indoor Fan operating normally for (motor or fan) the heating? Check the refrigerant amount. Samsung Electronics...

  • Page 105: Comp. Down Due To Low Pressure Protection Control

    Pipe inspection the pipe? (filter etc.) Is there any leakage in the Liquid Pipe Valve or the discharge check valve of the not-go-end Outdoor Unit when Replace relevant component only some Outdoor Units are operating? Check the refrigerant amount. Samsung Electronics...

  • Page 106: Sump Sensor Error Due To Protection Control

    Re-attach and check sensor. Is the sensor displaying the temperature normally? Check by referring to the other temperature sensor problem check-up methods. Refer to the solution method for the liquid-compression prevention error (E477). Samsung Electronics...

  • Page 107: Comp. Down Due To Compressor Discharge Temperature Sensor

    Are all service valves open? Open the Service Valve Are the Indoor Unit and Outdoor Unit EEV normally Check the relevant EEV operating? Are there any blockage inside the pipe? Pipe inspection (filter etc.) Check the refrigerant amount. Samsung Electronics...

  • Page 108: 3-Phase Input Wiring Error

    Low voltage error during this initial charge : Did the EMI PCB Fuse is short? Replace Fuse, if the rectifier diode of the inverter PCB is normal. Is EMI PCB CN21 connector and Inverter PCB accurately Connection and then restart it connected? Replace Inverter PCB Samsung Electronics...

  • Page 109: Comp. Down By Compression Ratio Control

    Manifold Gauge value in range? Are the 4Way Valve normally Check the 4Way Valve operating? Are the Indoor Unit and Outdoor Check the relevant EEV Unit EEV normally operating? Compressor Inspection Is current of compressor normally? Check the refrigerant Complete Samsung Electronics...

  • Page 110: Evi Eev Open Error

    Replace EVI EEV Breakdown Check the Intercooler leakage. Normal Replace Intercooler Breakdown Check the Indoor Unit EEV leakage Normal Replace Indoor Unit EEV Check the connection for Indoor Unit Pipe (Connect liquid pipe-gas pipe directly) Reinstall pipe Check the refrigerant Samsung Electronics...

  • Page 111: Refrigerant Leakage Error

    Out of the PCB high-pressure sensor terminals, Replace PCB is there voltage between pins 3 and 4 5V? Replace high/low-pressure sensor The ▼ mark is the 1st pin on the PCB. Samsung Electronics...

  • Page 112: Prohibition Of The Operation Of Compressor Due To Ooutdoor Temperature

    If the error code is displayed despite a condition that does not belong to any of the above diagnosis methods, read the temperature sensor value of the outdoor inlet air with View Mode or S-net, and if the actual outdoor temperature is different, please replace the temperature sensor. Samsung Electronics...

  • Page 113: High Pressure Standard Not Met Before Air Conditioning (Inability To Re-Operate)

    Is High Pressure sensor connector accurately connected to PCB? Reconnect and check connector. Is there any refrigerant leakage or recharging problem inside the system? (Check it through Manifold gauge) Supplement or recharge the refrigerant. Replace High Pressure sensor Samsung Electronics...

  • Page 114: Cch Malfunction And Sump Sensor Miswiring Error

    Attach the sump sensor to the lower part of the compressor. Is CCH resistance normal? (500~700Ω/infinite for disconnection) Change CCH. Does the E445 error occur even after the outdoor unit power is put back in? Normal Operation Change PCB. Samsung Electronics...

  • Page 115: Fan Starting Error

    Replace Fan Motor an Motor (U↔V,V↔W,W↔U) less than 10Ω? Is the resistance between the body of Replace Fan Motor Fan Motor and chassis MΩ? Does the Compressor connection Check the connection wire wire properly connect? Replace Fan PCB Samsung Electronics...

  • Page 116: Fan Lock Error

    If you rotate the fan by hand, Replace Fan Motor the noise occurs? Connection wire of Fan Motor did confirmation? Check the connection status, and then restart. (Check the connection status of the Fan1 and Fan2.) Replace Fan PCB Samsung Electronics...

  • Page 117: Momentary Blackout Error

    Operation Timer Indoor unit display Criteria ∙ Momentary stop of compressor due to momentary blackout. Cause of problem ∙ Momentary stop of compressor due to momentary blackout. 1. Precautions : Replace Hub PCB or Main Hub Connection wire. Samsung Electronics...

  • Page 118: Outdoor Fan Motor Overheating

    Connection wire of Fan Motor did confirmation? (Verify that the wire folded, or the connection is Check the connecting wire and restart it. detached.) Is there anything strange in Replace Fan PCB appearance Fan Motor? Replace Fan Motor Samsung Electronics...

  • Page 119: Outdoor Unit Fan Motor Rpm Error

    Is connection for feedback Connect connector as normal. connector normal? Is the connection for Re-connect connector. the fan connector normal? Is connection for Re-connect connector. fan power condenser normal? Is the motor operating Change motor. condition normal after changing PBA? Complete Samsung Electronics...

  • Page 120: Fan Ipm Overheat Error

    *Cold heat sink assembly defect occurs. Is the bolt of the heat sink fully tightened? Tighten Bolt Remove foreign objects and Did check the foreign objects between apply the heat sink grease. the heat sink and IPM? And then reassembly Complete Samsung Electronics...

  • Page 121: Over-Voltage Error Of An Outdoor Fan Motor

    1) It is a signal to protect a motor by checking the operational condition of the outdoor unit's fan motor without power so as not to operate it in counter-clockwise condition. 2) Check if there is wind strong enough to force a fan to rotate counter-clockwise where the outdoor unit is installed. Samsung Electronics...

  • Page 122: Compressor Excess Current Error

    (optional). Is the measured value from the separate ammeter the Change CT sensor. same as the CT sensor value? Is the CT value Breakdown of Compressor: Change measured at 20A or more during compressor. the operation? Inspection Complete Samsung Electronics...

  • Page 123: Compressor Starting Error

    Replace Compressor. compressor (U↔V,V↔W,W↔U) less than 2Ω? Is the resistance between the body of Compressor and Replace Compressor. chassis MΩ? Does the Compressor connection wire properly connect to Check the connection wire. the compressor? Continue Samsung Electronics...

  • Page 124: Inverter Overcurrent Error

    (U-V, V-W, W-U) less than 2Ω? Is the resistance between the body of Compressor and Replace Compressor chassis MΩ? Does the Compressor Check the connection wire connection wire properly connect (Check the status of the connection UVW) to the compressor? Continue Samsung Electronics...

  • Page 125: Overvoltage / Low Voltage Error

    Power R, S, T, N wire voltage check and restart it. R, S, T wire? Replace Inverter PCB and then restart it. Did the EMI PCB Fuse is short? * Check the 3-phase sensing circuit part. Replace Fuse, if the rectifier diode of the inverter PCB is normal. Samsung Electronics...

  • Page 126: Dc Link Voltage Sensor Error

    Is EMI PCB and Inverter PCB Power Off and then re-connection accurately connected? The case of E396, E498 Is Inverter PCB and Fan PCB DC-Link voltage connection wire Replace Fan PCB accurately connected? Replace Inverter PCB The case of E396, E498 Samsung Electronics...

  • Page 127: Liquid Compression Prevention Control

    Check the normal EEV operation Breakdown of the main EEV EVI. Resolve the relevant EEV problem. Normal Check the failure in Breakdown liquid bypass valve and 4way valve. Resolve the relevant valve problem. Normals Check and change the discharge valve leakage. Samsung Electronics...

  • Page 128: Fan Motor Overcurrent Error

    Is the resistance between the body of Outdoor Fan Motor Fan Motor and chassis MΩ? Check the connection wire Does the Fan Motor connection wire properly connect to the compressor? (Check the status of the connection UVW) FAN Replace PCB. Samsung Electronics...

  • Page 129: Input / Output Current Sensor Error

    Cause of problem ∙ PCB voltage sensing circuit defective 1. Cause of problem Power Off Is Power connection accurately connected? Power Cable re-connection E485 or E385? E493 or E393? E468 or E368? Replace Inverter PCB Replace Fan PCB Samsung Electronics...

  • Page 130: Outdoor Fan Pcb Overvoltage / Low Voltage Error

    ∙ Check the input wiring Cause of problem ∙ EMI Fuse short 1. Cause of problem Power Off Is Inverter PCB CN15 and Fan PCB CN11 DC-Link voltage connection Connection and then restart it wire accurately connected? Replace Fan PCB Samsung Electronics...

  • Page 131: Hall Ic(Fan) Error

    (Verify that the wire folded, or the connection is detached.) HALL IC on the PCB is connected correctly? Check the connecting wire and restart it. Replace Fan PCB Restart When the error is repeated, replace the Fan Motor. Samsung Electronics...

  • Page 132: Inverter Overheat Error

    Remove foreign objects and apply the heat sink and IPM? grease. And then reassembly Apply the heat sink grease and then reassembly. Did properly apply the heat sink grease? (Between the heat sink and the IPM) Good No Good Complete Samsung Electronics...

  • Page 133: Model Mismatching Of Indoor Unit

    1. Cause of problem Power On Does connected Replace the indoor unit that is indoor unit become compatible with compatible with the DVM INV. DVM INV? Is software version of Software upgrade indoor unit since July, 2011? Replace indoor unit PCB Samsung Electronics...

  • Page 134: Breakdown Of An Eev(1 St )

    5) If there is no problem with the above checkup items, replace the electronic expansion valve of the troubled indoor unit. - As an electronic expansion valve replacement is tricky work that requires collecting refrigerants in all systems, please make sure to check the above items before replacement. Samsung Electronics...

  • Page 135: Breakdown Of An Eev Closure

    5) If there is no problem with the above checkup items, replace the electronic expansion valve of the troubled indoor unit. - As an electronic expansion valve replacement is tricky work that requires collecting refrigerant in all systems, please make sure to check the above items before replacement. Samsung Electronics...

  • Page 136: Electronic Expansion Valve Closing Malfunction (2Nd Stage)

    After Resetting the outdoor unit, does an error occur even after running it again with the same combination? Normal operation of electronic expansion valve When EEV KIT was used, was its Address setting accurate? Reset EEV KIT's Address Replace electronic expansion valve Samsung Electronics...

  • Page 137: Electronic Expansion Valve Opening Malfunction (2Nd Stage)

    Normal operation of electronic expansion valve When EEV KIT was used, was its Address setting accurate? Reset EEV KIT's Address Replace electronic expansion valve Samsung Electronics...

  • Page 138: Hydro Unit Water In Temperature Sensor Error (Open/Short)

    2 terminals. 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of Water In Temperature Sensor itself. Restart operation after replace the PCB. Samsung Electronics...

  • Page 139: Hydro Unit Water Out Temperature Sensor Error (Open/Short)

    2 terminals. 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of Water Out Temperature Sensor itself. Restart operation after replace the PCB. Samsung Electronics...

  • Page 140: Hydro Unit Water Tank Temperature Sensor Error (Open/Short)

    2 terminals. 12.1 18.0 27.3 43.0 Did the resistance value significantly stray from the following temperature table? Replace this part as it is the defective of Water Tank Temperature Sensor itself. Restart operation after replace the PCB. Samsung Electronics...

  • Page 141: Emergency Error (Check The Water Piping Equipment)

    - Make sure the Water In temperature is lowered. Check the EVA In/Out temperature. Is EVA In/Out temperature maintain below zero? - Check the control status of EEV. - Check the EVA In/Out temperature sensor. - Check the Water In temperature. Samsung Electronics...

  • Page 142: Error To Prevention From Freezing And Bursting Of Heat Exchanger

    - Make sure the Water In temperature is lowered. Check the EVA In/Out temperature. Is EVA In/Out temperature maintain below zero? - Check the control status of EEV. - Check the EVA In/Out temperature sensor. - Check the Water In temperature. Samsung Electronics...

  • Page 143: Breakaway Of Water Out Temperature Sensor

    (Refer to the table of resistance value) Sensor defective : Replace sensor Among the Indoor Unit operation, is temperature change of Water Out? - Check the operate abnormally of Outdoor Unit. - Check the refrigerant clogging. Complete Samsung Electronics...

  • Page 144: Breakaway Of Flow Switch

    Junction point are formed? Replace Flow Switch. Check the water flow. Does circulation water flow maintain at least the recommended flow? Check the piping system of circulation water. (Pump operation, Strainer clogging) Replace PCB and then restart it. Samsung Electronics...

  • Page 145: Thermostat Wiring Error

    Check the wiring of Thermostat. Is Thermostat at the same time 230V and 24V wiring? Check the Cooling / Heating wiring has been duplicates to each Thermostat. Only one wiring of 230V or 24V. 230V Themostat Heating Cooling 24V Themostat Cooling Heating Samsung Electronics...

  • Page 146: Dc Fan Motor Feedback Error

    • DC FAN motor defective. • Control kit PBA defective. 1. Inspection Method Power On. Did you check the connection wire? Check the connection wire. Control Kit PBA CN808(DC-FAN) Replace Control Kit PBA. #1 ,#3 Pin output DC12V? Replace DC Fan Motor. Samsung Electronics...

  • Page 147: Water Tank Sensor Defective

    5 option set properly? instal l option reset. Reconnection to terminal block Is the hot water tank temperature sensor cable HT (terminal block 3,4) connected correctly? HE (terminal block 7,8) Replace the indoor PCB . Samsung Electronics...

  • Page 148: Pcb Diagram And Parts List

    5. PCB Diagram and Parts List 5-1 Indoor Unit 5-1-1 Wind-free 4way cassette type, mini 4way cassette - Main PBA (AM045/056/071/090/112/128/140NN4DEH*) (AM015/022/028/036/045/056/060NNNDEH*) (AM009/012/018/024/036/048NN4DCH/**) (AM005/007/009/012/018/020NNNDCH/**) 15 16 19 20 Samsung Electronics...
  • Page 149 #1~#4: EEV CHECK #2: VENT CONTROL SIGNAL #5 : DC12V #1: DC12V #6 : DC12V #2: CLEAN PANEL COMMUNICAITON(TXD) #3: CLEAN PANEL COMMUNICAITON(RXD) #4: GND ㉕ TE04-COMMUNICATION #1: COM1(F1) #2: COM1(F2) #3: V1(DC12V) #4: V2(GND) #5: COM2(F3) #6: COM2(F4) Samsung Electronics...
  • Page 150 - Display PBA (AM045/056/071/090/112/128/140NN4DEH*) (AM015/022/028/036/045/056/060NNNDEH*) (AM009/012/018/024/036/048NN4DCH/**) (AM005/007/009/012/018/020NNNDCH/**) CN01-DISPLAY ① #1: DC12V #2: LED_Operation #3: LED_Defrost #4: LED_Timer #5: - #6: LED_Filter #7: - #8: Remocon Signal Out #9 : Panel Select #10: Remocon signal In #11: GND #12: DC5V #13: - Samsung Electronics...

  • Page 151: Wiring Diagram

    BLK : black, RED : red, BLU : blue, WHT : white, YEL : yellow, BRN : brown, SKY : sky blue, GRN : green 3. For connection wiring indoor-outdoor transmissioin F1-F2, indoor-wired remote controller transmission F3-F4. Protective earth (SCREW). This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 152: Reference Sheet

    RAC-A3050 Outdoor Unit RAC-Crystal Indoor Unit Mode AIR HANDING UNIT Heat Pump (R-410A) AIR HANDING UNIT WITH FRESH Heat Pump (R-134A) HYDRO UNIT (wall) HYDRO UNIT (floor) HYDRO UNIT (TANK) WATER TANK FLAT (CEILNG TYPE)_VTL STAND (EXPOSURE TYPE)_VTL Samsung Electronics...

  • Page 153: Panel

    8 Languages English ★ Only display the Global 4 way with Korean/ English K separator. Pattern Waffle Stripe Korean Global market use 4 Way Export/ Panel foreign market use ※ Model name for the column/bundle packaging is “~S”. Samsung Electronics...

  • Page 154: Pump-Down Method

    Gas pipe SVC valve is Liquid pipe SVC 가스관 SVC 밸브 닫힘 액관 SVC 밸브 닫힘 closed. valve is closed. Gas pipe SVC valve 가스관 SVC 밸브 열림 Liquid pipe SVC 액관 SVC 밸브 열림 opened. valve is opened. Samsung Electronics...

  • Page 155: How To Put Refrigerant In Refrigerant Container

    8. Please take extra caution by precisely determining the amount of the refrigerant that can be put in each container so that too much refrigerant is not contained in the container. The weight must be measured by using a scale to avoid putting more refrigerant than the amount originally contained in the container. Gas Pipe Connection Scale Liquid Pipe Connection Samsung Electronics...
  • Page 156 © Samsung Electronics Co., Ltd. FEBRUARY. 2018. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in Korea. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. AC-00211E_1...

This manual is also suitable for:

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