Samsung AG026MN1DEH Service Manual
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Samsung AG026MN1DEH Service Manual

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Fan Coil Unit
System Airconditoner
Fan Coil Unit
AG026/32MN1DEH/EU
AG042MN1DEH/EU
AG060/072/090/105MN4DKH/EU
AG060/072/090/105MN4PKH/EU
AG026/032/042TN1DKH/**
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 AG026MN1DEH

  • Page 1 System Airconditoner Fan Coil Unit AG026/32MN1DEH/EU AG042MN1DEH/EU AG060/072/090/105MN4DKH/EU AG060/072/090/105MN4PKH/EU AG026/032/042TN1DKH/** Fan Coil Unit 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 ......................1-1 1-1. Precautions for the Service ..........................1-1 1-2. Precautions for the Static Electricity and PL ....................1-1 1-3. Precautions for the Safety ..........................1-1 ..................2-1 ............................2-1 ........................2-6 2-2-1. Accessories ................................2-6 3. Disassembly and reassembly ................3-1 3-1.
  • Page 3 Contents 5. PCB Diagram ......................5-1 5-1. Fan Coil Unit ................................. 5-1 ........................5-1 5-1-2. Wind Free 1Way Cassette ............................5-4 ..................5-6 5-1-4. Circular cassette type ............................5-9 5-1-5. FCU SUB PBA ................................5-11 ..........................5-12 ......................5-13 ....................5-14 ......................5-15 ........................5-16 6.

  • Page 4: Precautions

    1. Precautions 1-1. Precautions for the Service Use the standard parts when replacing the electric parts. – This helps prevent the danger of fire caused by tracking or short circuit. 1-2. Precautions for the Static Electricity and PL tricity. - This can cause irregular noise or degrade the picture quality. 1-3.
  • Page 5 2. Product Specifications 2-1. Product Specifications Model (Slim 1 way cassette type) Type 1Way Cassette 1Way Cassette 1Way Cassette Model AG026MN1DEH/EU AG032MN1DEH/EU AG042MN1DEH/EU Power Supply 4.15 Cooling Cooling Capacity 3.35 Capacity Cooling Power Cooling Type Fin & Tube Fin & Tube Fin &...
  • Page 6 Product Sepcifications Model (Wind Free 1Way Cassette) Model AG026TN1DKH/EU AG032TN1DKH/EU AG042TN1DKH/EU AG026TN1DKH/TK AG032TN1DKH/TK Power Supply 4.15 Cooling 3.35 3.35 Type Fin & Tube Fin & Tube Fin & Tube Fin & Tube Fin & Tube Tube Cooling Power Cooling Type 11.9 14.4 Water...
  • Page 7 Product Sepcifications Model (Wind Free 1Way Cassette) Model AG042TN1DKH/TK AG026TN1DKH/TS AG032TN1DKH/TS AG042TN1DKH/TS Power Supply Φ, #, V, Hz 1,2,220~240,50/60 1,2,220~240,50/60 1,2,220~240,50/60 1,2,220~240,50/60 Mode Heat Pump Heat Pump Heat Pump Heat Pump T1 (kW) 4.15 2.60 4.15 Cooling T1 (Btu/h) T3 (kW) Capacity A 1) (Nominal) T1 (kW)
  • Page 8 Product Sepcifications Model (Small / Medium 4 Way Cassette type) TYPE G4W/C-Small G4W/C-Small G4W/C-Mid G4W/C-Mid Model Name AG060MN4DKH/EU AG072MN4DKH/EU AG090MN4DKH/EU AG105MN4DKH/EU Power Supply Cooling Cooling Capacity Cooling Power Cooling Type Type Turbo Fan Turbo Fan Turbo Fan Turbo Fan Type Fin &...
  • Page 9 Product Sepcifications Model (Small / Large 360 Cassette type) TYPE 360CST-Small 360CST-Large 360CST-Large 360CST-Large Model Name AG060MN4PKH/EU AG072MN4PKH/EU AG090MN4PKH/EU AG105MN4PKH/EU Power Supply Cooling Capacity Cooling Power Power Cooling Type Type Turbo Fan Turbo Fan Turbo Fan Turbo Fan Type Fin & Tube Fin &...

  • Page 10: Accessories

    Product Sepcifications 2-2. Specifications of optional items 2-2-1. Accessories Item Description Code No. Q’ty PC1NWSK1N Slim 1 way cassette PC1NWAK1N PC1BWSK1N Slim 1 way cassette PC1BWAK1N Front Panel PC1NWFMBN Wind Free 1Way Cassette PC1NWFMBNDZ PC1BWFMBN Wind Free 1Way Cassette PC1BWFMBNDZ PC4NUSK1N Front Panel PC4NBSK1N...
  • Page 11 Product Sepcifications Item Description Code No. Q’ty Remark AST-EP01D S-NET CLOUD Option AST-EP05D DMS2.5 AIM-D01AN Option BACnet G/W AIM-B17BN Option External Contact Interface Module AIM-B14 Option ON/OFF Controller ACM-A202DN Option Touch Central Controller ACM-A300N Option FCU Interface Module AIM-F10N Option Power Monitoring Interface Module AIM-B12N Option...

  • Page 12: Disassembly And Reassembly

    3. Disassembly and reassembly Necessary tools Item Remark Electric drill...

  • Page 13: Fan Coil Unit

    Disassembly and Reassembly 3-1. Fan Coil Unit 3-1-1. 1-Way Cassette Type AG026/032MN1DEH/EU Parts Procedure...
  • Page 14 Disassembly and Reassembly Parts Procedure...
  • Page 15 Disassembly and Reassembly Parts Procedure...
  • Page 16 Disassembly and Reassembly Parts Procedure [ASSY GRILLE INLET] [ASSY Panel FRONT] display PBA connectors.
  • Page 17 Disassembly and Reassembly Parts Procedure...
  • Page 18 Disassembly and Reassembly Parts Procedure unit. hands. Electronics...
  • Page 19 Disassembly and Reassembly Parts Procedure unit PCB.
  • Page 20 Disassembly and Reassembly Parts Procedure to open the air release valve to sufficiently collecting the water using the tube before generation. unit.
  • Page 21 Disassembly and Reassembly Parts Procedure unit.
  • Page 22 Disassembly and Reassembly AG042MN1DEH/EU Parts Procedure 3-11...
  • Page 23 Disassembly and Reassembly Parts Procedure 3-12...
  • Page 24 Disassembly and Reassembly Parts Procedure Electronics board unit PCB. 3-13...
  • Page 25 Disassembly and Reassembly Parts Procedure 3-14...
  • Page 26 Disassembly and Reassembly Parts Procedure 3-15...
  • Page 27 Disassembly and Reassembly Parts Procedure to open the air release valve to sufficiently collecting the water using the tube before generation. 3-16...
  • Page 28 Disassembly and Reassembly Parts Procedure unit. 3-17...
  • Page 29 Disassembly and Reassembly ■ AG026/032TN1DKH/** Parts Procedure Remark PANEL And FILTER 1) Open the GRILLE as shown in the figure. – 3point WIND FREE TYPE (PC1NWFMBN PC1NWFMBNDZ) 2) Remove the FILTER from the PANEL. 3) Remove the 3 COVER SCREW as shown in the figure.
  • Page 30 Disassembly and Reassembly Parts Procedure 3-19...
  • Page 31 Disassembly and Reassembly Parts Procedure...
  • Page 32 Disassembly and Reassembly ■ AG042TN1DKH/** Parts Procedure Remark PANEL And FILTER 1) Open the GRILLE as shown in the figure. – 4point WIND FREE TYPE (PC1BWFMBN PC1BWFMBNDZ) 2) Remove the FILTER from the PANEL. 3) Remove the 4 COVER SCREW as shown in the figure.
  • Page 33 Disassembly and Reassembly Parts Procedure 3-22...
  • Page 34 Disassembly and Reassembly Parts Procedure 3-23...
  • Page 35 Disassembly and Reassembly Parts Procedure When disassembling the Pan, be careful not to touch the heat exchanger board with a bare hand. 3-24...
  • Page 36 Disassembly and Reassembly Parts Procedure Unit. 3-25...
  • Page 37 Disassembly and Reassembly Parts Procedure Cross Fan 3-26...
  • Page 38 Disassembly and Reassembly Parts Procedure 3-27...

  • Page 39: 4-Way Cassette Type

    Disassembly and Reassembly 3-1-2. 4-Way Cassette Type AG041/060/072/090/105MN4DKH/EU Parts Procedure Panel logo together and pull the grille to open it. Push up the green switch in the direction of the Loosen the 2 screws halfway and then push the electronics board cover towards the direction of the downward.
  • Page 40 Disassembly and Reassembly Parts Procedure Press inward the hanger on either side of the panel Controller fan coil unit controller. 3-29...
  • Page 41 Disassembly and Reassembly Parts Procedure opposite direction of placing the electronics board.
  • Page 42 Disassembly and Reassembly Parts Procedure Evaporation 3-31...
  • Page 43 Disassembly and Reassembly Parts Procedure Evaporator 3-32 3-32...
  • Page 44 Disassembly and Reassembly Parts Procedure cabinet. to open the air release valve to sufficiently collecting the water using the tube before generation. 3-33...

  • Page 45: Circular Cassette Type

    Disassembly and Reassembly 3-1-3. Circular Cassette Type AG060/072/090/105MN4PKH/EU Parts Procedure Panel unit. 3-34...
  • Page 46 Disassembly and Reassembly Parts Procedure Panel clockwise coil unit. upward to separate the grille and filter. 3-35...
  • Page 47 Disassembly and Reassembly Parts Procedure Controller cover while avoiding the hanging structure 3-36...
  • Page 48 Disassembly and Reassembly Parts Procedure Controller controller. Upper cover and drain using sharp tools. 3-37...
  • Page 49 Disassembly and Reassembly Parts Procedure 3-38...
  • Page 50 Disassembly and Reassembly Parts Procedure 3-39...
  • Page 51 Disassembly and Reassembly Parts Procedure...
  • Page 52 Disassembly and Reassembly Parts Procedure the evaporator pipe along with the fastening clip. 3-41...
  • Page 53 Disassembly and Reassembly Parts Procedure Evaporator protruding pipe hanging structure. 3-42...
  • Page 54 Disassembly and Reassembly Parts Procedure to open the air release valve to sufficiently collecting the water using the tube before generation. 3-43...

  • Page 55: Troubleshooting

    Trouble shooting 4. Troubleshooting 4-1. Set fan coil unit address and installation options 4-1-1. Option setting procedure and setting method (Normal remote controller) 4-1-1-1. The procedure of setting option Entering mode for option setting Step 1 Option setting procedure Step 2 caution...
  • Page 56 Trouble shooting 4-1-1-2. The procedure of setting option Option setting Status will be selected in rotation. SEG2 SEG3 will be selected in rotation. SEG4 SEG5 will be selected in rotation. SEG6 SEG8 will be selected in rotation. SEG9 SEG10 will be selected in rotation. SEG11 SEG12...
  • Page 57 Trouble shooting Option setting Status will be selected in rotation. SEG14 SEG15 will be selected in rotation. SEG16 SEG17 will be selected in rotation. SEG18 SEG20 will be selected in rotation. SEG21 SEG22 will be selected in rotation. SEG23 SEG24...
  • Page 58 Trouble shooting Check the option you have set Step 3 button to check whether the option code you input is correct or not. Input option Step 4 Press Check operation Step 5 operation button.
  • Page 59 Trouble shooting 4-1-2. Option setting procedure and setting method (360 cassette remote controller only) 4-1-2-1. The procedure of setting option Entering the mode for Setting theoption values settingthe options Step 1 b. While holding down the Step 2 Set the option values. caution...
  • Page 60 Trouble shooting Steps Remote control display SEG2 SEG3 2 Press the SEG4 SEG5 4 Press the SEG6 SEG8 6 Press the...
  • Page 61 Trouble shooting Steps Remote control display SEG9 SEG10 8 Press the SEG11 SEG12 10 Press the SEG14 SEG15 12 Press the...
  • Page 62 Trouble shooting Steps Remote control display SEG16 SEG17 14 Press the SEG18 SEG20 16 Press the SEG21 SEG22 18 Press the...
  • Page 63 Trouble shooting Steps Remote control display SEG23 SEG24...
  • Page 64 Trouble shooting 4-1-3. Fan Coil Unit Address (MAIN/RMC) Setting 1. Check whether or not power is being supplied to the fan coil unit. Fan coil unit 1(L) 2(N) Option No. : 0AXXXX-1XXXXX-2XXXXX-3XXXXX Option Fan coil address units Page Fan coil address tens digit digit controller display...
  • Page 65 Trouble shooting 4-1-4. Fan Coil Unit Installation Option Setting (setting option to suit installation site conditions) 1. Check whether or not power is being supplied to the fan coil unit. Fan coil unit 1(L) 2(N) Central control sensor Electronic heater control 4-11...
  • Page 66 Trouble shooting Option No. : 02XXXX-1XXXXX-2XXXXX-3XXXXX Option Page Use of robot cleaning Use of central control Fan operation sensor details Lowest speed when Lowest speed when Lowest speed when Option Use of hot water Page heater details when indoor unit is stopped Option Page...
  • Page 67 Trouble shooting Option Page control installation Offset Turn OFF if absent Channel Turn OFF if absent Turn OFF if absent Channel Turn OFF if absent details Turn OFF if absent Channel Turn OFF if absent Turn OFF if absent Channel Turn OFF if absent outside the unit.
  • Page 68 Trouble shooting Control variable when Light wind speed Water valve control Valve opening control Water pipe Valve setting type rise prevention error operation wind speed installation setting forced setting Installation options for the 02 series (Wind Free 1Way Cassette) Use of hot water heater control 4-14...
  • Page 69 Trouble shooting Installation options for the 02 series (detailed) Option No.: 02XXXX-1XXXXX-2XXXXX-3XXXXX Option Use of central Function Page control operation when sensor and details Option Use of hot water Function Page heater Auto Evaporator operation in Wind- Use every fan Cooling operation by Use every fan opening the blade...
  • Page 70 Trouble shooting Option Function Page control Setting the output On or Off signal Use of hours control and details control hours Window On or Off control Option Function Page Channel 1 Channel 2 2 °C and details Channel 3 5 °C Channel 4 –...
  • Page 71 Trouble shooting Installation options for the 05 series (detailed) Option No.: 05XXXX-1XXXXX-2XXXXX-3XXXXX Option Function Page and details Option Function Page and details Option Water pipe valve Valve control at Water pipe valve is Control variable when using hot water heater or Function Page type...
  • Page 72 Trouble shooting Option the water Choose whether to the cooling and heating Function Page signals for the water pipe prevention valve Air speed for Air speed for cooling heating The cooling and heating signals are sent and details The cooling control and heating using...
  • Page 73 Trouble shooting 4-1-5. Option code per model Static Item Model Pressure 13 14 17 18 19 20 21 22 23 24 AG026MN1DEH/EU Slim 1-Way AG032MN1DEH/EU cassette type AG042MN1DEH/EU Static Item Model Pressure 13 14 17 18 19 20 21 22 23 24...

  • Page 74: What To Check Before Diagnosis

    4-2. What to check before diagnosis 4-2-1. Lamp combination expression method DISPLAY Slim 1-Way & 2-Way cassette type Error code E121 E122 E123 E123 installed units Self-diagnosis error display E128 E198 E153 E162 E163...
  • Page 75 Trouble shooting 4-Way & compact 4-Way cassette type Oper- Error Filter ation code E121 E122 E123 E154 E221 repeater for 2 Self-diagnosis error display E128 E153 E162 E163 4-21...
  • Page 76 Trouble shooting Circular type cassette type Error code Blue blue green E121 E122 E123 E154 E128 Self-diagnosis error units E153 E162 E163 E164 E198 4-22...
  • Page 77 Trouble shooting Ice blue Yellow green Blue 4-2-2. Number expression method DISPLAY (fan coil unit, cable remote control, etc.) Combined ERROR code display method Meaning of Error number/first alphabet character Error display order unit 4-23...
  • Page 78 Trouble shooting Fan coil unit related Error Code Cause E-121 E-122 E-123 E-128 E-153 E-154 Fan coil unit Fan operation error E-161 E-162 E-163 Error due to confused use of Fahrenheit and Celsius E-627 E-633 E-653 E-654 4-24...
  • Page 79 4-3. Appropriate Measures for Different Symptoms 4-3-1. Fan coil unit ROOM sensor error (OPEN/SHORT) 4-Way cassette type Circular cassette type Clean stop Filter Fan coil unit 1-Way display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of connector to the PCB.
  • Page 80 Trouble shooting 4-3-2. Fan coil unit EVAP IN sensor error (OPEN/SHORT) 4-Way cassette type Circular cassette type Clean stop Filter 1-Way Fan coil unit display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of to the PCB. 12.1 27.3 as it is defective.
  • Page 81 Trouble shooting 4-3-3. Fan coil unit EVAP OUT sensor error (OPEN/SHORT) 4-Way cassette type Circular cassette type Clean stop Filter 1-Way Fan coil unit display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of to the PCB. 12.1 27.3 as it is defective.
  • Page 82 Trouble shooting 4-3-4. Water temperature increase prevention error 4-Way cassette type Circular cassette type Clean stop Filter 1-Way Fan coil unit display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of After separating the indoor EVA 12.1 27.3 as it is defective.
  • Page 83 Trouble shooting 4-3-5. : Floating Switch detection of fan coil unit Drain Pump 4-Way cassette type Circular cassette type Clean Filter 1-Way Fan coil unit display Blue blue green Blue 2-Way Criteria Error E153 can only be lifted by resetting the fan coil unit power. Error occurrence After disconnecting the Floating Sensor connector that in the drain board?

  • Page 84: Fan Coil Unit Fan Operation Error

    Trouble shooting 4-3-6. Fan coil unit Fan operation error 4-Way cassette type Circular cassette type Clean stop Filter Fan coil unit 1-Way display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of connector type?
  • Page 85 Trouble shooting 4-3-7. EEPROM error 4-Way cassette type Circular cassette type Clean stop Filter Fan coil unit 1-Way display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of location a short or dewetting does the error occur again? 4-31...
  • Page 86 Trouble shooting 4-3-8. Fan coil unit remote control option error 4-Way cassette type Circular cassette type Clean stop Filter 1-Way Fan coil unit display 18°C 21°C 24°C 27°C Blue blue Blue green 2-Way Criteria Cause of 4-32...

  • Page 87: Error Due To Confusion Between Use Of Fahrenheit And Celsius

    Trouble shooting 4-3-9. Error due to confusion between use of Fahrenheit and Celsius Fan coil unit display Criteria 4-33...

  • Page 88: Pcb Diagram

    5. PCB Diagram 5-1. Fan Coil Unit 5-1-1. Slim 1 way cassette type (Medium)
  • Page 89 Slim 1 way cassette type (Medium) (cont.) OUTPUT...
  • Page 90 Slim 1 way cassette type (Medium) (cont.)
  • Page 91 5-1-2. Wind Free 1Way Cassette...

  • Page 92: Wind Free 1Way Cassette

    Wind Free 1Way Cassette...
  • Page 93 5-1-3. Slim 1 way cassette type (Large), 4way casette type...
  • Page 94 Slim 1 way cassette type (Large), 4way casette type (cont.)
  • Page 95 Slim 1 way cassette type (Large), 4way casette type (cont.)
  • Page 96 5-1-4. Circular cassette type...

  • Page 97: Circular Cassette Type

    Circular cassette type (cont.)
  • Page 98 5-1-5. FCU SUB PBA 5-11...
  • Page 99 5-1-6. Circular cassette type DISPLAY Model: PC4NUSK1N, PC4NUAK1N, PC4NUSK5N 5-12...
  • Page 100 5-1-7. Slim 1 way cassette type panel (Normal) Model: PC1NWSK1N, PC1NWAK1N, PC1BWSK1N, PC1BWAK1N (Korea) PC1NUPMAN (Europe) 5-13...
  • Page 101 5-1-8. Slim 1 way cassette type panel (Interior type) Model: PC1NWSK2N, PC1BWSK2N (Korea) PC1BWSK2N, PC1BWSMAN (Europe) 5-14...
  • Page 102 5-1-9. Slim 1 way cassette type panel (Europe) Model: PC1NUSMAN (Europe) 5-15...
  • Page 103 5-1-10. Small 4 way cassette type panel Model: PC4NUSK1N, PC4NUAK1N, PC4NUSK5N (Korea) PC4NUSKAN, PC4NUSKEN, PC4NBSKAN (Europe) 5-16...

  • Page 104: Wiring Diagram

    6. Wiring Diagram 6-1. Fan Coil Unit 6-1-1. Slim 1 way cassette (Medium_JSF1)
  • Page 105 6-1-2. Slim 1 way cassette (Small_Medium_JSF2), 4 way cassette (G4WAY)
  • Page 106 6-1-3. Wind Free 1Way Cassette...
  • Page 107 6-1-4. Circular cassette type(360)

  • Page 108: Reference Sheet

    7. Reference Sheet 7-1. Index for Model Name 7-1-1. Fan Coil Unit 1Way Cassette 2Way Cassette Flagship Standard Outdoor Unit Fan Coil Unit Version 1...

  • Page 109: Panel

    7-1-2. Panel Model Code ★ Colo ★ ★...
  • Page 110 China china.samsungportal.com © Samsung Electronics Co., Ltd. October. 2020. 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-00195E_2...

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