Samsung AM036NXMDCR Service Manual
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Samsung AM036NXMDCR Service Manual

System air conditioner
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AIR CONDITIONER
Refer to the service manual in the GSPN(see the rear cover) for the more information.
SYSTEM AIR CONDITIONER
OUTDOOR UNIT
AM036NXMDCR
AM048NXMDCR
AM053NXMDCR
AM060NXMDCR
CONTENTS
■ Product Specifications
■ Disassembly and Reassembly
■ Refrigerant pipe installation
■ Troubleshooting
■ PCB Diagram
■ Wiring Diagram
■ Reference Sheet
■ Check Operation & Amount of
Refregent Automatically Checking

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Summary of Contents for Samsung AM036NXMDCR

  • Page 1 SYSTEM AIR CONDITIONER OUTDOOR UNIT AM036NXMDCR AM048NXMDCR AM053NXMDCR AM060NXMDCR AIR CONDITIONER CONTENTS ■ Product Specifications ■ Disassembly and Reassembly ■ Refrigerant pipe installation ■ Troubleshooting ■ PCB Diagram ■ Wiring Diagram ■ Reference Sheet ■ Check Operation & Amount of Refregent Automatically Checking Refer to the service manual in the GSPN(see the rear cover) for the more information.

  • Page 2: Table Of Contents

    Contents ■ Product Specifications ..................4 1. The Feature of Product ..........................4 1-1 Feature ....................................4 2. Product Specifications ..........................10 ■ Disassembly and Reassembly ................12 ■ Refrigerant pipe installation ................32 1. Examples of the correct refrigerant pipe installation for Heat Recovery ........32 2.
  • Page 3 3-25 Comp down due to OLP temperature control (Error Code : E463) ..........61 3-26 Compressor starting/rotation error (Error Code : E461, E467) ............62 3-27 Current error / PFC overload error (Error Code : E462, E484) .............64 3-28 IPM over current error (Error Code : E464) ....................65 3-29 DC-Link voltage under/over error (Error Code : E466) ................68 3-30 Others ..................................70 ■...

  • Page 4: Product Specifications

    High efficient G-Fin & epoxy acrylic coating has increased heat transfer and hydrophilicity on heat exchanger. Company A Diameter Ø8 Ø7 Heat transfer surface area Pressure Evaporation 14.1% loss in heat Condensation exchanger 10.3% Internal heat transfer performance 30.8% Pressure resistance Same Company A Samsung Electronics...
  • Page 5 Saturated liquid refrigerant Temperature Low temperature gas refrigerant 온도 Low temperature liquid refrigerant Cross section of the Cross section of the Sub-cooled Turbo inter-cooler conventional inter-cooler liquid refrigerant *Increased heat transfer area with Shell & Tube type Turbo Inter-cooler Samsung Electronics...
  • Page 6 Corrosion is evident after 1,000 hours of test Company A * Tested by Samsung  Long piping/High level difference technology Longest piping length is allowed up to 175m (equivalent length) and Maximum 50m of level difference is allowed for more flexible installation.
  • Page 7 • Silent mode can be adjusted in 3 levels depending on the level of noise. Highest temperature 6 hours 12 hours of silent mode Operation time 7 : 00 13 : 30 19 : 00 7 : 00 Samsung Electronics...
  • Page 8 • Displaying 15 main data including high pressure of system - Outdoor temperature - Discharge temperature of the compressor - Condensing temperature • Using the DIP switch on the outdoor unit PCB, you can limit the running current of the system Samsung Electronics...
  • Page 9  Convenient product installation Service valve is not exposed to keep the neat appearance and pipe can be connected in 4 different directions which provide flexible installation and maintenance services. Conventional * For models with 9kW or larger (Flare type connection) Samsung Electronics...

  • Page 10: Product Specifications

    Product Specifications 2. Product Specifications Type Performance 3ton 4ton 4.5ton 5.0 ton Model AM036NXMDCR AM048NXMDCR AM053NXMDCR AM060NXMDCR Power Supply(Φ/V/Hz) 1,208-230,60 1,208-230,60 1,208-230,60 1,208-230,60 Mode Cooling Btu/h 38,000 48,000 53,000 60,000 Performance Heating Btu/h 42,000 54,000 61,000 66,000 Cooling* 15.0 20.3 25.6...
  • Page 11 Product Specifications Type Performance 3ton 4ton 4.5ton 5.0 ton Model AM036NXMDCR AM048NXMDCR AM053NXMDCR AM060NXMDCR Net weight 213.8 213.8 220.5 275.6 Shipping Weight 235.9 235.9 242.5 297.6 Set Size 940 x 1210 x 330 940 x 1210 x 330 940 x 1210 x 330...

  • Page 12: Disassembly And Reassembly

    ■ Disassembly and Reassembly  Necessary Tools Item Remark +Screw Driver Monkey Spanner –Screw Driver Nipper Electric Motion Driver L-Wrench Samsung Electronics...
  • Page 13 Disassembly and Reassembly  AM036NXMDCR, AM048NXMDCR, AM053NXMDCR Parts Procedure Remark Cabi Front RH You must turn off the Power before disassembly. 1) Unscrew and remove 2 mounting screw in the Cabinet Front RH. (Use + Screw Driver) Cabi Top 1) Unscrew and remove 9 screws on each side of the Cabinet-Top.
  • Page 14 2) Unscrew and remove 4 screws in the Guard Cond. (Use + Screw Driver) Cabi Back RH 1) Pull the sensor from Cabi Back RH. 2) Unscrew and remove 4 screws on each side of the Cabinet Back RH. (Use + Screw Driver) Samsung Electronics...
  • Page 15 Disassembly and Reassembly Parts Procedure Remark Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet-Install Back. (Use +Screw Driver) Cabi Front LF 1) Unscrew and remove 10 screws in the Cabinet-Front LF. (Use +Screw Driver) Samsung Electronics...
  • Page 16 Disassembly and Reassembly Parts Procedure Remark 1) Turn 2 mounting nuts as shown in the picture and remove it. (Use L Wrench or Monkey Spanner or Socket Wrench ) Samsung Electronics...
  • Page 17 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) 3) Disconnect the Motor wire from Ass’y Control Out. Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use + Screw Driver) Samsung Electronics...
  • Page 18 Disassembly and Reassembly Parts Procedure Remark Control Out 1) Disconnect 10 Connectors from Ass’y control Out. 2) Unscrew and remove 1 mounting screw in Control Out. (Use + Screw Driver.) 3) Separate Ass’y Control Out. Samsung Electronics...
  • Page 19 Compressor completely and remove the pipe with a welding flame. Ass'y Tube Suction 1) Separate 2 parts of the pipe using a welder. Ass'y Tube 4Way 1) Separate 2 parts of the pipe using a welder. Samsung Electronics...
  • Page 20 1) Unscrew and remove 1 mounting nut in bottom of the cover. (Use Adjustable Wrench) 2) Separate the Compressor Felt. 3) As shown in the picture, unscrew and remove 3 mounting screws from the bottom. (Use L-Wrench or Monkey Spanner or Socket Wrench) Samsung Electronics...
  • Page 21 Disassembly and Reassembly Parts Procedure Remark Cond Out 1) Unscrew and remove 3 screws on each side of the Ass’y Cond Out. (Use + Screw Driver) Samsung Electronics...
  • Page 22 Cabinet Front RH. (Use + Screw Driver) Cabi Top 1) Unscrew and remove 8 screws on each side of the Cabinet-Top. (Use +Screw Driver) Cabi Install Front 1) Unscrew and remove 1 screw in the Cabinet Install Front. (Use +Screw Driver) Samsung Electronics...
  • Page 23 Disassembly and Reassembly Parts Procedure Remark Guard Cond 1) Pull the sensor from Guard Cond. 2) Unscrew and remove 4 screws in the Guard Cond. (Use + Screw Driver) Samsung Electronics...
  • Page 24 Disassembly and Reassembly Parts Procedure Remark Cabi Back RH 1) Pull the sensor from Cabi Back RH. 2) Unscrew and remove 4 screws on each side of the Cabinet Back RH. (Use + Screw Driver) Samsung Electronics...
  • Page 25 Remark Cabi Back RH 3) Unscrew and remove 5 screws on side of the Case Bracket valve. (Use + Screw Driver) Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet Install Front. (Use +Screw Driver) Samsung Electronics...
  • Page 26 Disassembly and Reassembly Parts Procedure Remark Cabi Front LF 1) Unscrew and remove 10 screws in the Cabinet-Front LF. (Use +Screw Driver) Samsung Electronics...
  • Page 27 Disassembly and Reassembly Parts Procedure Remark Cabi Front LF 1) Turn 2 mounting nuts as shown in the picture and remove it. (Use L Wrench orMonkey Spanner or Socket Wrench ) Samsung Electronics...
  • Page 28 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) 3) Disconnect the Motor wire from Ass’y Control Out. Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use + Screw Driver) Samsung Electronics...
  • Page 29 Control Out. (Use + Screw Driver.) 3) Separate Ass’y Control Out. Assy tube parts 1) Separate 5 parts of the pipe using a welder. 2) Unscrew and remove 1 mounting screws in Assy bracket valve. (Use + Screw Driver.) Samsung Electronics...
  • Page 30 3) Unscrew and remove 2 mounting screws in Bracket accume. (Use + Screw Driver.) 4) Separate the Assy TUBE 4way-accumulator. Compressor 1) As shown in the picture, unscrew and remove 4 mounting screws from the bottom. (Use L-Wrench or Monkey Spanner or Socket Wrench) Samsung Electronics...
  • Page 31 Disassembly and Reassembly Parts Procedure Remark Cond Out 1) Unscrew and remove 3 screws on each side of the Ass’y Cond Out. (Use + Screw Driver) Samsung Electronics...

  • Page 32: Refrigerant Pipe Installation

    - Change the installation option for direct-connected indoor unit without HR Changer/MCU. (refer to the indoor unit installation manual) - Be sure to combine the cooling only indoor units so that their total capacity becomes 50% or less of the total capacity of all indoor units. Samsung Electronics...

  • Page 33: Examples Of The Incorrect Refrigerant Pipe Installation For Heat Recovery

    If you don’t install HR Changer(E) after the Y-joint, it will not work properly. • If you install only MCU(F) without HR Changer (E), it happen to occur the error(E214). Cooling only indoor units must be installed behind the HR Changer. Samsung Electronics...

  • Page 34: Troubleshooting

    ■ Troubleshooting 1. Error Display ERROR DISPLAY Samsung Electronics...

  • Page 35: Error Code

    When indoor unit is not installed to a MCU port but the switch on the port is set to On. hen indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch E-217 on the port is set to Off Samsung Electronics...
  • Page 36 Error due to unconnected wire of compressor 1 E-468 Output current sensor error of inverter PBA1 E-469 DC voltage sensor error of inver PBA1 E-474 IPM Heat sink error of Inverter PBA 1 E-475 Iinverter fan 2 Error Samsung Electronics...
  • Page 37 Error due to module installation of indoor unit with old version (Micom version needs to be checked) E-702 Error due to closed EEV of indoor unit (1st detection) E-703 Error due to opened EEV of indoor unit (1st detection) Auto Trial Operation incompleted (UnPrepared) Samsung Electronics...

  • Page 38: How To Take Measures For Each Symptom

    Check the outdoor unit PCB communication each unit and replace the indoor unit PCB line and connector then replace the PCB. after checking out lines. Samsung Electronics...

  • Page 39: Communication Error Between Indoor And Outdoor Units After Completing Tracking (Error Code : E202)

    PCB then find an indoor unit that hampers communication by making a connection to each unit and replace indoor unit PCB after checking out lines. Good Defective 0.7V 0.7V Samsung Electronics...

  • Page 40: Communication Error (1 Minute) Between Main And Sub Micoms Of An Outdoor Unit Or Among Outdoor Units (Error Code : E203)

    Red-On, Green-On, Orange-Blinking and if the 7-segment on the outdoor unit main PBA does not display anything, change the main PBA → Outdoor unit inverter PBA is normal. [7-segment on [AMSSSSXMDCS series Main PBA (Common)] inverter PBA LED] Samsung Electronics...

  • Page 41: 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 42: 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. Outdoor Unit PCB Quantity of Quantity of Indoor Unit Branch Indoor Unit: 3 MCU: 1 Samsung Electronics...

  • Page 43: 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 44: Communication Error (1 Minute) Between Main And Sub Micoms Of An Outdoor Unit Or Among Outdoor Units (Error Code : E203)

    Example of MCU quantity setting error • ex) PCB MCU setting quantity of outdoor unit = 2 / MCU installed Quantity = 3 • Example of MCU address setting error ex) Two among three of MCU address was set to 0 Branch Samsung Electronics...

  • Page 45: 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 46: 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 47: 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 48: Mcu Branch Part Setup Error - Connect More Indoor Units Than What Is Actually Set Up In Mcu

    Example of MCU indoor unit setting DIP switch error • ex) Indoor unit No.5 was connected to branch part C, but DIP switch No.3 (branch part C) is off. Outdoor Unit PCB Quantity of Quantity of Indoor Branch Indoor Unit: 4 MCU: 1 Samsung Electronics...

  • Page 49: Mcu/Mcu Subcooler Entrance/Exit Sensor Error (Open/Short)

    Separate the connector from the PCB and Temperature(°C) Resistance(KΩ) measure the resistance value between the 2 terminals. 12.1 18.0 Is the resistor value matching with 27.3 “NOTE1” table? 43.0 Replace this part as it is the defective itself. Restart operation after replace the PCB Samsung Electronics...

  • Page 50: Outdoor Temperature Sensor Error(Open/Short) (Error Code : E221, E231, E251, E269, E276, E311 E321, E322, E323)

    Check if everything is normal and end service on temperature sensor similar to the values on the table on the right side? Change the outdoor unit PBA → Turn on the power → Check if everything is normal and end service Samsung Electronics...

  • Page 51: High Pressure Temperature Sensor Error (Open/Short) (Error Code : E291) Low Pressure Temperature Sensor Error (Open/Short) (Error Code : E296)

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

  • Page 52: Compressor Down By Antifreeze Control (Error Code: E403)

    Check the relevant indoor fan Is the indoor EEV working properly? Check the relevant EEV Is the sensor on indoor heat exchanger shows the temperature correctly? Refer to temperature sensor error section to check for error Check for indoor air inlet blockage Samsung Electronics...

  • Page 53: Comp. Down Due To A Protective Control Of High Pressure (Error Code : E407)

    Do the values of S-net and Replace a high pressure sensor Manifold gauge correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place Check the piping in the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics...

  • Page 54: Comp. Down Due To A Protective Control Of Low Pressure (Error Code : E410)

    (ex. filter)? Is there any leakage in liquid pipe valve or discharge check valve of the stop-side outdoor Replace the relevant components unit when several outdoor units are in operation? Check the amount of refrigerant Samsung Electronics...

  • Page 55: Comp. Down Due To A Discharge Temperature Sensor Of A Compressor (Error Code : E416)

    S-net and Manifold gauge Replace a high pressure sensor correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place in the piping Check the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics...

  • Page 56: Reverse Phase Detection Error (3Phase Outdoor Unit) (Error Code : E425)

    3) If 3-phase power is normal check the phase of the power line using 3-phase tester. If it shows reverse phase, please change the current 3-phase tester power line connection. 4) After completing above, press reset key (K3) then check the power again. Samsung Electronics...

  • Page 57: Esc Eev Open Error (Error Code : E438)

    Check the leakage on sub-cooler Normal Change the sub-cooler Failure Check the leakage on indoor unit EEV Normal Change the indoor unit EEV Check the piping connection Connect liquid-gas pipe) Re-install the pipe Check the amount of refrigerant Samsung Electronics...

  • Page 58: Refrigerant Leakage Error (Error Code : E439)

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

  • Page 59: Prohibition Of The Compressor Operation Due To Outdoor Temperature (Error Code : E440, 441)

    Is high pressure sensor correctly connected to PCB? Check and reconnect the connector Is there leakage of refrigerant in the system or charging inferior? (Check with manifold gauge) Refill or recharge the refrigerant Replace the high pressure sensor Samsung Electronics...

  • Page 60: Outdoor Unit Fan Error (Error Code : E458, 475 )

    * Do not change the outdoor unit PBA with fan motor problem → If the 7-segment on the outdoor unit main PBA shows error, there is no problem with outdoor unit main PBA → Control related problems can be solved by S/W update Samsung Electronics...

  • Page 61: Comp Down Due To Olp Temperature Control (Error Code : E463)

    Do the values of S-net and Manifold gauge Replace a high pressure sensor correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place Check the piping in the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics...

  • Page 62: Compressor Starting/Rotation Error (Error Code : E461, E467)

    3. Is there any noise when the 3. Change the compressor: When loud compressor rotates? abnormal noise generates (such as metal grinding), or severe vibration Is the resistance between Change the compressor compressor body and chassis MegaΩ? Cont. Samsung Electronics...
  • Page 63 → It is Compressor, inverter PBA related error, therefore it is not related to above PBA. * Make sure to check if service valve is open. → If the service valve is close, damage could occur due to pressure difference during operation. Samsung Electronics...

  • Page 64: Current Error / Pfc Overload Error (Error Code : E462, E484)

    2. Remove obstacles on air outlet and secure enough space. Open the valve. Is the service valve completely open? Change the compressor. Is the compressor operating normally? Change the outdoor unit inverter PBA and check for normal operation → End service Samsung Electronics...

  • Page 65: Ipm Over Current Error (Error Code : E464)

    1. Remove obstacles on air inlet and secure Is the indoor unit installed correctly?? enough space 2. Remove obstacles on air outlet and secure enough space Is piping/wiring between Re-install them correctly the indoor and outdoor unit done correctly? Cont. Samsung Electronics...
  • Page 66 Is the resistance between Change the compressor compressor body and chassis MegaΩ? Is the location and Turn off the power and change the location measured value of the of the temperature sensor or replace it temperature sensor normal? Cont. Samsung Electronics...
  • Page 67 Change the PCB. XMDC series] SSSS * Do not change the EMI/outdoor unit main/ Indoor unit main PBA when E464 error occurs. → It is Compressor, inverter PBA related error, therefore it is not related to above PBA. Samsung Electronics...

  • Page 68: Dc-Link Voltage Under/Over Error (Error Code : E466)

    → End service outdoor unit inverter PBA normal? 2. Change the reactor → Check for normal operation 2. Is there any problem on reactor coil? (such as scratch/pressed/ → End service broken terminal/loose XMDC series] SSSS terminal) Cont. Samsung Electronics...
  • Page 69 2. Is power cable and terminal on the the power terminal cabinet → Check for power terminal cabinet firmly normal operation → End service assembled? Change the outdoor unit inverter PBA and check for normal operation → End service Samsung Electronics...

  • Page 70: Others

    When error occurs, turn on/off the power for number of time and if same error occurs while the power is off, change the inverter PBA 7. EEPROM read/write error: E470 Error occurs when there is no EEPROM data in the set. Check the model name and insert EEPROM for corresponding model or load the EEPROM data. Samsung Electronics...

  • Page 71: Pcb Diagram

    ■ PCB Diagram 1. Outdoor Unit PCB - Main PCB Samsung Electronics...
  • Page 72 CN846 LOAD2 YW396-03AV BLK CN845 LOAD4 YW396-03AV BLU CN844 4WAY YW396-03AV YEL CN842 HOTGAS YW396-03AV RED CN101 A/C POWER YW396-03AV WHT CN304 DRED DAPC-2009-6P BLK CN300 EARTH YDW236-01 WHT CN303 COMM-INDOOR YW396-02V RED CN843 MODE SELECTOR SMW250-03 WHT Samsung Electronics...
  • Page 73 CN901 FAN1 YW396-06V WHT CN911 FAN2 YW396-06V WHT CN401 COMP 42819-3213 BLK REACTOR_A2 REACTOR_A2 YTR250 REACTOR_A1 REACTOR_A1 YTR250 REACTOR_B2 REACTOR_B2 YTR250 REACTOR_B1 REACTOR_B1 YTR250 AC POWER OT-048 AC POWER OT-048 CN551 DOWNLOAD YDW200-20 BLK CN351 COMM-MAIN SMW250-06 WHT Samsung Electronics...
  • Page 74 PCB Diagram Outdoor Unit PCB (cont.) - EMI PCB : 1Phase Local Function Description AC POWER OT-048 EARTH EARTH YEL/GRN WIRE AC POWER BRN WIRE AC POWER SKY/BLU WIRE AC POWER OT-048 CN01 AC POWER YW396-03AV WHT Samsung Electronics...

  • Page 75: Wiring Diagram

    ■ Wiring Diagram 1. 1 Phase (AM036/048/053/060NXMDCR) This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 76: Reference Sheet

    PS_L V_4W T_ EO CV_D T_ EI PS_H E_EV PW_H SV_ G2 “A” T_CT SV_ G “B” COMP T_ L V_HG SV_ L SERVICE V/V 9.52 AM036NXMDCR Name AM048NXMDCR AM053NXMDCR “A” Service V/V 15.88 “B” Service V/V 19.05 Samsung Electronics...

  • Page 77: Am036/048/053Nxmdcr (Cooling Mode)

    High temperature & high pressure liquid High temperature & high pressure liquid Low temperature & pressure Liquid Low temperature & pressure Liquid EEV On EEV On Low temperature & pressure gas Low temperature & pressure gas EEV Off EEV Off f f Samsung Electronics...

  • Page 78: Am036/048/053Nxmdcr (Main Cooling Mode)

    High temperature & high pressure liquid High temperature & high pressure liquid Low temperature & pressure Liquid Low temperature & pressure Liquid EEV On EEV On Low temperature & pressure gas Low temperature & pressure gas EEV Off EEV Off f f Samsung Electronics...

  • Page 79: Am036/048/053Nxmdcr (Heating Mode)

    Reference Sheet 1-4 AM036/048/053NXMDCR (Heating mode) Heating Heating Heating Heating Indoor unit HR Changer DVM S Eco HR Samsung Electronics...

  • Page 80: Am036/048/053Nxmdcr (Main Heating Mode)

    HR Changer DVM S Eco HR Solenoid valve On High temperature & high pressure gas Solenoid valve Off High temperature & high pressure liquid Low temperature & pressure Liquid EEV On Low temperature & pressure gas EEV Off Samsung Electronics...

  • Page 81: Nomenclatures

    Standard / Tropical / Module Standard / General / Non Module Standard / Tropical / Non Module High / General High / Low Temp. High / Tropical Flagship / General Temp. Flagship / Low Temp. Ultra Renewal Prime Samsung Electronics...

  • Page 82: Check Operation & Amount Of Refrigerant Automatically Checking

    - Check the drainage of the Indoor Unit cooling operation. - More operation : Checking status by using the S-NET. (5) Refer to manual and explain air conditioner usage to user. 6) Deliver this installation guide so that customer retain. Samsung Electronics...
  • Page 83 - Oblique line marked area in the during operation of the system can be protection control. (Check operation of normal judgment can be difficult by the protection control operation.) - If out of warranty coverage and the boundary area : Check operation judgment accuracy may be reduced. Samsung Electronics...

  • Page 84: How To Troubleshoot Of The "Undetermined

    Is deviations of the Indoor Unit Temperature sensors, less than 10℃? Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Must be carried out Automatic Commissioning after 1 hour from final operation stopped. Samsung Electronics...
  • Page 85 Is deviations of the Indoor Unit Temperature sensors, less than 10℃? Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Must be carried out Automatic Commissioning after 1 hour from final operation stopped. Samsung Electronics...
  • Page 86 High pressure Max/Min deviation : less than 2 Off the vauum mode Outdoor Unit Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Maintain the vacuum mode for more than 5 minutes. Samsung Electronics...
  • Page 87 Replace Inverter PCB and CTsensor have the same value? Is refrigerant in Is Compressor current(CT) value normal? the system properly? Adjusts the refrigerant (Addition / Emitted) IIs operation current of Compressor normal? Replace Compressor Complete Samsung Electronics...
  • Page 88 Temperature(℃) connector, resistance, etc.) 89.0 112.0 185.0 320.0 590.0 2000.0 2402.0 When commissioning, does maintain 3602.0 Indoor ventilation 5503.0 Thermo On status of Indoor Unit? Adjusts the refrigerant Is refrigerant in the system propely? (Addition / Emitted) Complete Samsung Electronics...
  • Page 89 Confirmation and Measures Is 4Way Valve coil normal? Replace Valve coil (Wire breaking, operation impossible, etc.) Is PCB Output signal normal? Replace PCB Replace 4Way Valve Body (Retry the Automatic Commissioning : If the continuous "Undetermined" is displayed. Complete Samsung Electronics...

  • Page 90: Automatic Commissioning Error Code

    E503 Service Valve is closed Refer to "Service Valve" Dedicated Error Code E505 High pressure sensor breakdown Refer to "High/Low pressure sensor (Module installed)" E506 Low pressure sensor breakdown ※ Other error codes : Refer to Service Manual. Samsung Electronics...

  • Page 91: Automatic Refrigerant Amount Detection Function (Checking Th Amount Of Refrigerant)

    - Add 5% of the detected amount of refrigerant and restart the refrigerant amount detection operation. • Judgment not available - Check if the refrigerant amount detection operation was executed within guaranteed temperature range. Execute trial operation to check if there's any other problems on the system. Samsung Electronics...
  • Page 92 China china.samsungportal.com © Samsung Electronics Co., Ltd. March. 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-00216E_1...

This manual is also suitable for:

Am048nxmdcrAm053nxmdcrAm060nxmdcr

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