Samsung AVMKH020EA4 Service Manual

System air conditioner
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Table of Contents
SERVICE
AIR CONDITIONER
For more information, Please access to our service web site (http://itself.sec.samsung.co.kr)
SYSTEM AIR CONDITIONER
INDOOR UNIT
AVMKH020EA4
AVMDH045EA4
AVMKH026EA4
AVMDH052EA4
AVMKH035EA4
AVMDH070EA4
AVMGH052EA4
AVMHH105EA4
AVMGH070EA4
AVMHH128EA4
AVMCH045EA4
AVMHH140EA4
AVMCH052EA4
AVMBH020EA4
AVMCH070EA4
AVMBH026EA4
AVMCH105EA4
AVMBH035EA4
AVMCH128EA4
AVMBH052EA4
AVMCH140EA4
AVMBH070EA4
OUTDOOR UNIT
RVMMH140EZ
RVMMH120GZ
RVMMH140GZ
RVMMH160GZ
Manual
THE FEATURE OF PRODUCT
I
Available to unit with the various
indoor units.
– Available to connect the maximum 9 indoor units.
– Applicable the various indoor unit types and
capacity.
I
Easy maintenance and installation
I
Various Control System
I
Various Scroll Comp is applied
I
Overcomes the limit of connection
place of indoor unit.
– Type maximum length of pipe is 70M.
AVMDSH022EA
AVMDSH028EA
AVMDSH036EA
AVMWH020EA4
AVMWH026EA4
AVMWH035EA4
AVMFH052EA4
AVMFH070EA4

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  Summary of Contents for Samsung AVMKH020EA4

  • Page 1 Easy maintenance and installation Various Control System Various Scroll Comp is applied Overcomes the limit of connection place of indoor unit. – Type maximum length of pipe is 70M. For more information, Please access to our service web site (http://itself.sec.samsung.co.kr)
  • Page 2: Table Of Contents

    Contents 11. Precautions ................................................... 1-1 Installing the air conditioner ....................1-2 Power supply and circuit breaker ..........................1-3 During operation ........................1-4 Disposing of the unit ..............................1-5 Others 12. Product Feature and Specifications ..........................................2-1 Product Feature ..........................
  • Page 3 Contents 15. Exploded Views and Parts List ..............................................5-1 Indoor Unit ..................... 5-1-1 1-Way cassette type (Body) ................... 5-1-2 1-Way cassette type (Panel) ..................... 5-1-3 2-Way cassette type (Body) ................... 5-1-4 2-Way cassette type (Panel) ............5-1-5 4-Way cassette type(Body : 4.5kW~14.0kW) ...................
  • Page 4 Contents ....................... 7-1-6 Wall-mounted type ..........................7-1-7 Ceiling type ............................7-2 Outdoor Unit 18. Circuit Descriptions ....................................................8-1 Indoor Unit ......................8-1-1 1-Way cassette type ......................8-1-2 2-Way cassette type ......................8-1-3 4-Way cassette type ..........8-1-4 Duct type (Low silhouette/High pressure/Built-in) ........................
  • Page 5 Contents 11. Troubleshooting 11-1 ..............................................11-1 Operation flow of outdoor unit 11-1 ..............11-2 Self-diagnosis by the outdoor unit error display 11-5 ................... 11-3 Self-diagnosis by LED indoor unit 11-31 .............. 11-4 Defect judgment and troubleshooting by S-NET 11-33 ...................
  • Page 6: Precautions

    Do not place a cloth or other materials over it. G Remove the batteries if you don’t use the remote control for a long time. (If applicable) G Use the remote control within 7 meters from the indoor unit. (If applicable) Samsung Electronics...
  • Page 7: Disposing Of The Unit

    G Young children or infirm persons should be always supervised when they use the air conditioner. G Max current is measured according to IEC standard for safety. G Current is measured according to ISO standard for energy efficiency. Samsung Electronics...
  • Page 8: Product Feature And Specifications

    Even more, the stylish design blends with any interior design. 2. Space saving Installation in the ceiling translates to more available space in the room. Body Drain pan Bio heat exchanger Long-life air filter Indicators & Remote control sensor Panel Washable front grille Samsung Electronics...
  • Page 9 • Long-life air filter The long-life filter requires no maintenance for up to 2,000 hours. • Bio heat exchanger & air filter Samsung’s own heat exchanger and air filter prevent any penetration of fungi or bacteria into the system. • Double-insulated cabinet Dual insulation of the steel cabinet inhibits rust caused by dew.
  • Page 10 1-Way 2-Way • Lift-up drain pump The drain pump can lift condensed water up to 550mm above the drain port. 20mm over This allows more flexibility in routing the tube through the ceiling 1/100 over space. Flexible Hose Samsung Electronics...
  • Page 11 “Fresh air intake” is directly linked with the zone ventilation and refreshes out the stuffy and dirty air. It is absolutely helpful with the air-trapped indoor ventilation Fresh air intake condition. Fresh air intake Samsung Electronics...
  • Page 12 (Max. installation ceiling height is 3.5m) 3.5m (Ceiling height : H 2.7~3.5m, L 2.7m Standard ceiling High ceiling 5. Versatile airflow The direction of airflow can be selected to meet installation or room specifications. 4-Way pattern 3-Way pattern Samsung Electronics...
  • Page 13 3. Well fit application in the field of office, hotel guest room, small conference room and so on. 4. The unit can be installed, if there is a space of 270mm above ceiling. min. 270mm >> Regular installation examples Standard Ceiling return Samsung Electronics...
  • Page 14 3. Well fit application in the field of office, hotel guest room, small conference room, and so on. 4. The higher fan speed possible through the high static pressure of indoor unit and duct. 5. It is possible to arrange the air outlet on the optimum place through the high static pressure. Samsung Electronics...
  • Page 15 4. Well fit application in the field of office, home bed room, hotel guest room and so on. 5. Then unit can be installed, if there is a space of 310mm above ceiling. min. 310mm >> Regular installation examples Standard With canvas bellows Samsung Electronics...
  • Page 16 209mm 5. The height of unit is lower than any other duct type so that it is installed in the small space. 199mm 6. Both below and rear inhalation are available. Install the unit to the various directions. Samsung Electronics...
  • Page 17 Product Feature and Specifications I Wall-mounted type Cross Fan Since Samsung's Bio Cross Fan has been molded with the antibacterial formula, it can suppress proliferation of molds and bacteria, preventing the causes of foul odors. This extends durability of the unit.
  • Page 18 2. Auto-Door Grille The interior of the room is just the way you want it. A Samsung air conditioner fits right in, seamlessly lending with the decor. The design is slit-less in new models. When the air conditioner is not in operation, the front panel is closed.
  • Page 19 - A filter cleaning indicator is displayed both on the indoor unit and the wired remote controller. 3. The unit can be installed both Ceiling and Floor. >> Ceiling installation >> Floor installation 300mm 300mm 300mm 50mm 2-12 Samsung Electronics...
  • Page 20: Outdoor Unit

    Series cools your home twice as fast compared Samsung mini-DVM to other energy-saving products in the market thanks to the Samsung’s other energy-saving air conditioner Samsung energy-saving A’s air conditioner operation of the powerful PWM(Pulse Width Modulation) compressor. It also has a better ability to maintain the set temperature.
  • Page 21: Product Specifications

    2-2 Product Specifications 2-2-1 Indoor Unit I 1-Way cassette type Model AVMKH020EA4 AVMKH026EA4 AVMKH035EA4 Power supply ø, V, Hz 1, 220-240~, 50 Remark Heat pump ✻ 1) Performance Capacity Cooling Btu/h 7,000 9,000 12,000 ✻ 2) Heating Btu/h 7,500 10,000 13,000 ✻...
  • Page 22 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-15...
  • Page 23 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. 2-16 Samsung Electronics...
  • Page 24 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-17...
  • Page 25 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. 2-18 Samsung Electronics...
  • Page 26 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-19...
  • Page 27 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. 2-20 Samsung Electronics...
  • Page 28 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-21...
  • Page 29 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. 2-22 Samsung Electronics...
  • Page 30 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 10m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-23...
  • Page 31: Outdoor Unit

    - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. 2-24 Samsung Electronics...
  • Page 32 - Indoor temperature : 20˚C DB - Outdoor temperature : 7˚C DB, 6˚C WB, Equivalent refrigerant piping : 7.5m(horizontal) ✳ 3) Noise level acquired in a dead room, so actual noise level may be different depending on the installation conditions. Samsung Electronics 2-25...
  • Page 33: The Comparative Specifications Of Product

    3 Tab Control 2.86/3.05 2.88/3.46 Materials of compressor inlet FELT PVC+FELT Size (Net) 930 x 1,270 x 385mm 932 x 1,128 x 375mm Noise 67dB 54dB The number of maximum indoor units Compressor ZRD72KC-TFD ZRD81KC-TFD Weight (Net) 155kg 125kg 2-26 Samsung Electronics...
  • Page 34: Accessories (Options)

    Receiver Kit @, # : Version (For Duct) $ : Language G MRW-10A Remote MRW : Remote Control Receiver Kit Wire MRW-!@# Control ! : Length (m, Double figures) Receiver @ : Version wire # : Language Samsung Electronics 2-27...
  • Page 35 • C : Others (Function Controller) G MCM-B102 @ : LCD Classification #, $ : Version (Integrating power % : Language [None : 9 Languages distributor) G MCM-C200 C : Chinese U : 3 Languages (˚F & Inch)] 2-28 Samsung Electronics...
  • Page 36: Alignment And Adjustments

    Indoor unit EVAP IN sensor breakaway Indoor unit EVAP OUT sensor breakaway Simultaneous breakaway of Indoor unit EVAP IN/OUT sensor Auxiliary (electric) heater sensor 1 error MCU temp. sensor open/short Indoor unit related error Indoor unit EEV open failure Samsung Electronics...
  • Page 37 Outdoor unit reverse phase detection 1 error Forbid heating mode operation when outdoor temperature over 30˚C Forbid cooling mode operation when outdoor temperature below -5˚C In case of refrigerant charging operation at the 15˚cover of outdoor temperature in the heating mode Samsung Electronics...
  • Page 38 DMS ↔ PEAK Transmitter communication error DMS ↔ PIM Transmitter communication error Outdoor unit protection control low level risk - Indoor unit is normal. Display the state of Outdoor unit Indoor unit EEV closing error Indoor unit EEV opening error Samsung Electronics...
  • Page 39: Setting Option Setup Method

    Input the second digit of option code by pressing the temperature adjustment button (up). example) 021E31142285 ✳ Result) ✳ If 2 is displayed, go to the step 4 (whenever pressing the button, 1~9, A,B,C,D,E,F are lit in order.) Samsung Electronics...
  • Page 40 If E displays, go to step 6. ✳ Step 6 ✳ Method) ✳ Input the fifth digit of option code by pressing the On timer button. example) 021E31142285 ✳ Result) ✳ If 3 displays, go to step 7. SEG 5 Samsung Electronics...
  • Page 41 2~7 steps, press the mode button to make the first digit 0. ✳ Step 9 ✳ Method) ✳ Input the eighth digit by pressing the temperature adjustment button (up). example) 021E31142285 ✳ Result) ✳ If 4 displays, go to step 10. Samsung Electronics...
  • Page 42 ✳ Result) ✳ If 2 displays, go to step 12. ✳ Step 12 ✳ Method) ✳ Input the 11st digit by pressing the On timer button. example) 021E31142285 ✳ Result) ✳ If 8 displays, go to step 13. Samsung Electronics...
  • Page 43 Check the option code again and display of remote controller. repeat the step 1~14. (Operation mode/SET TEMP. /fan speed displays.) rear side Samsung Electronics...
  • Page 44: Indoor Unit Option Code

    Alignment and Adjustments 3-2-2 Indoor unit option code Type Model SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 AVMKH020EA4 1-Way AVMKH026EA4 cassette type AVMKH035EA4 AVMGH052EA4 2-Way cassette type AVMGH070EA4 AVMCH045EA4 AVMCH052EA4 AVMCH070EA4 4-Way cassette type AVMCH105EA4...
  • Page 45: Disassembly And Reassembly

    Front Grille will drop suddenly and you will be hurt. 2) Separate the Front Grille. (1) Remove the safety clips. (2) Open the Front Grille about 45˚ and pull it forward. 3) Pull out the Air-Filter. Samsung Electronics...
  • Page 46 Disassembly and Reassembly Parts Procedure Remark 1) Disassemble the screws holding the Front Panel Panel as shown picture. 2) Separate the Front-Panel pressing the 2 hooks on the both sides of the indoor unit. Samsung Electronics...
  • Page 47 Disassembly and Reassembly Parts Procedure Remark 1) Disassemble screws for Ass'y Drain Ass'y Panel around as shown in pictures. Drain Panel 2) Separate Ass'y Drain Panel as shown in pictures. Samsung Electronics...
  • Page 48 Disassembly and Reassembly Parts Procedure Remark 1) Separate the Control Cover after Ass'y Control In disassembling screws as shown in pictures. 2) Separate the wire connection part of the Ass'y Main PCB as shown in picture. Samsung Electronics...
  • Page 49 Disassembly and Reassembly Parts Procedure Remark 3) Disassemble screws of Case Control as shown in pictures. 4) Disassemble indicating screw. 5) Separate Ass'y Case Control part pulling up. Samsung Electronics...
  • Page 50 Disassembly and Reassembly Parts Procedure Remark 6) Disassemble indicating screw and separate earth cable. 7) Disassemble indicating screw and separate Terminal Cover as shown in pictures. 8) Disassemble indicating screws as shown in pictures. Samsung Electronics...
  • Page 51 9) Disassemble indicating screws of earth cable and indicating screw of Base Terminal. 10) Separate Base Terminal as shown in picture. Ass'y 1) Separate Ass'y Drain Panel Sub after Drain Panel Sub disassemble the screws both side of it. Samsung Electronics...
  • Page 52 1) Disassemble the screws of Ass'y Evap Ass'y Evap around. 2) Disassemble indicating screws as shown in picture and separate Ass'y Cabinet Side-LF B. 3) Separate Ass'y Evap pulling up from the indoor unit as shown in picture. Samsung Electronics...
  • Page 53 Fan Motor and separate Cover Fan Motor. 2) Separate Ass'y Cross Fan as shown in picture. 1) Disassemble indicating screws as shown Ass'y Drain Pump in picture. 2) Separate Drain Hose and separate Ass'y Drain Pump as shown in pictures. Samsung Electronics...
  • Page 54: Way Cassette Type

    (1) Open the Front Grille and pull it up to the direction in the picture. (2) Detach the Safety Clip. 3) Filter Disassembly (1) Detach the Filter by disassembling the Grille Hook. 4) Detach 6 bolts and 2 fixing screws connected to the Main Body.( Mark) Samsung Electronics 4-10...
  • Page 55 6) Detach the connection wires of Step Motor and the receive part from the wire of a Main Body. 7) Widen the both hooks of Panel hooked with the Main Body to both sides, and detach the Panel from the Indoor Unit. 4-11 Samsung Electronics...
  • Page 56 Terminal. 4) Detach the Fan Motor connection wire, Heat Exchanger Sensor connection wire, and the Drain Pump Float S/W connection wire from the connecter. 5) Detach the Control Box from the Main Body. Samsung Electronics 4-12...
  • Page 57 3) Unscrew 16 screws connected to the Drain Pan and the Main Body.( Mark) 4) Detach the Drain Pan from the Main Body. 5) Unscrew 4 Heat Exchanger screws connected to the cabinet body and Cover Evap Guide. 4-13 Samsung Electronics...
  • Page 58 Evap Guide connected to the Case Motor. & Motor 2) After detaching the Cover Motor by pushing the hook, detach the Cover Evap Guide. 5) Detach the Motor and Fan from the Case. (Use M3 wrench when detaching the Motor from the Fan.) Samsung Electronics 4-14...
  • Page 59 1) Detach the Drain Hose connected to the Drain Pump Drain Pump by loosening the spring. 2) Unscrew 4 screws connected to the Holder Pump and Drain Pump. 3) After connector detaching, detach the Drain Pump from the holder. 4-15 Samsung Electronics...
  • Page 60 1) Unscrew 2 screws of the Holder Motor Front Panel fixed on the Panel, and detach the Holder Motor. The Panel, and detach the Holder Motor. 2) Unscrew 2 screws of the Step-Motor, and detach the Step-Motor from the Panel. Samsung Electronics 4-16...
  • Page 61 6) When detaching the blade, detach the opposite side first of Step Motor after turning over the guide on the Panel. 7) When detaching the Blade V, after detaching the link by pushing, detach the blade with pushing to the direction of arrow. 4-17 Samsung Electronics...
  • Page 62: Way Cassette Type

    Filter 2) Disassembly of Front Grille. (1) Open the Front Grille at about 45˚ degrees and draw it forward. (2) Disassemble the safety clip. 3) Filter Disassembly (1) Draw the Dust-Collecting Filter forward. (2) Disassemble the Filter. Samsung Electronics 4-18...
  • Page 63 6) Loosen the bolt on the Electronic Component part cover to uncover the Electronic Component part cover. 7) Disassemble the cables between the indoor unit and the Panel. – Stepping Motor Connector – Receiving & Display Unit Connector Option 4-19 Samsung Electronics...
  • Page 64 1) Disconnect all the indoor and outdoor cables connected to the Terminal Board. – Indoor&Outdoor Connecting Cable 1) Disassemble the fan motor wire & connector, thermistor wire connector, and drain pump wire connector. Motor 2) Disassemble the wire connector in the Capacitor. Samsung Electronics 4-20...
  • Page 65 4) Disassemble the float switch wire connected to the Terminal Port. (F1, F2) 5) Loosen the bolts in the mark 6) Loosen a bolt in the arrow direction inside. 7) Disassemble the Drain Cushion from the Main Body. 4-21 Samsung Electronics...
  • Page 66 Take out the washer Take out the washer Take out the washer Take out the washer Take out the washer Take out the washer Take out the washer 10) Disassemble the motor connector wire. 11) Disassemble the ground wire. Samsung Electronics 4-22...
  • Page 67 Procedure Remark 12) Loosen nuts to disassemble the Motor. Ass'y Drain Pump 1) Loosen the bolts of the Drain Pump. 2) Disassemble the hose from the Drain Pump. 3) Disassemble the pump from the Main Body Bracket. 4-23 Samsung Electronics...
  • Page 68 3) Disassemble the fixing brackets of the Heat Exchanger to disassemble it from the Main Body. Front Panel 1) Push Cover Front fixing screws inside – Cover Front the Front Panel and snap fixing part to separate the Cover Front. Samsung Electronics 4-24...
  • Page 69 (1) cushion side-A and cushion side-B inside the Front Panel, and then lift it up. 2) Remove (1) the screw of housing motor L/R fixed at the corner part of Front Panel inside and separate (2) Blade-H. 4-25 Samsung Electronics...
  • Page 70: Duct Type (Low Silhouette)

    Filter-Pre can be assembled. ✳ Be sure to remove the cushion on the marked part after initial installation. (It cause the damage of noise). 1) After disassembling places indicating screws, Blower detach Ass'y Cover Bottom. & Duct Samsung Electronics 4-26...
  • Page 71 3) Detach the sensor holder from the Ass'y Fan case. 4) Detach from Ass'y Control in the capacitor connection wire between the Motor-Fan in and Housing Connector. 5) Detach the Ass'y Blower and Duct from the set. 4-27 Samsung Electronics...
  • Page 72 Cover-Control. 2) Detach the Motor-Fan in and Sensor Connector connected to PCB. 3) Hold the Ass'y Control In by hand to lift up a little and then release the status of hanging on the hanging slot. Samsung Electronics 4-28...
  • Page 73 Ass'y Drain Pan. 1) Disassemble indicating screws. (each at left and right side) 2) Disassemble indicating screws. 3) Disassemble indicating screws. ✳ It is possible at the status of No.3 Ass'y Control In disassembly at the time. 4-29 Samsung Electronics...
  • Page 74 Remark 4) After disassembling indicating screws. 5) Pull the Cabinet Side-LF, RH by hand to disassemble. 6) Separate indicating screws. (each at left and right side) 7) Detach it from the set if the Ass'y-Evap pull up. Samsung Electronics 4-30...
  • Page 75 (each at left and right side) 2) Disassemble indicating screws. (each at upper and lower side) ✳ After connecting canvas to the disassembled Ass'y Holder Outlet 2), attach the Ass'y Holder Outlet to the set in the reverse order. 4-31 Samsung Electronics...
  • Page 76: Duct Type (High Pressure)

    Component Box Cover. indoor unit (disassembly of the Electric Component box) 2) Check internal connection of the Electric Component Box. 3) Separate the wire connection part of the Electric Component Box.(indoor motor line, indoor capacitor line/temperature sensor line) Samsung Electronics 4-32...
  • Page 77 Disassembly and Reassembly Parts Procedure Remark 1) Separate the screws fixed on the unit Base. & Motor 2) Separate Blower Ass'y from the unit. 4-33 Samsung Electronics...
  • Page 78 Cabinet and the unit are separated. Drain Board 2) It is possible to clean the surface of Heat Exchanger and Drain Board. 3) After cleaning Heat Exchangers and Drain Board, check whether the Drain exhaust are clogged. Samsung Electronics 4-34...
  • Page 79 Disassembly and Reassembly Parts Procedure Remark 1) Remove Bracket for fixing Filter(screws Cleaning a Filter disassembly). Bracket 2) Clean the filter with removing downward. 3) After cleaning the Filter, insert and fasten it with Bracket for fixing. 4-35 Samsung Electronics...
  • Page 80: Duct Type (Built-In)

    2) Remove the Filter as shown in picture. Ass'y Control In 1) Separate the control Cover-Control after disassemble the indicating screws. 2) Separate the wire connection part of the Ass'y Control In(Indoor motor wire, indoor-capacitor wire, temperature sensor wire) Samsung Electronics 4-36...
  • Page 81 4) Hold the Ass'y Control In by hand to lift up and remove it as shown in picture. 1) Disassemble the indicating screws and Ass'y Drain Panel separate the Cabinet-Top. 2) Disassemble the indicating screws and separate the Cover-Holder. 4-37 Samsung Electronics...
  • Page 82 Disassembly and Reassembly Parts Procedure Remark 3) Separate the Ass'y Drain Panel as shown in picture. 1) Disassemble the indicating screw and Ass'y Evap separate wire and Cover-Pipe. 2) Disassemble the indicating screws. Samsung Electronics 4-38...
  • Page 83 Disassembly and Reassembly Parts Procedure Remark 3) Separate the Ass'y Evap from the set. Ass'y Blower 1) Disassemble the indicating screws. 2) Pull up Ass'y Blower and separate it from set. 4-39 Samsung Electronics...
  • Page 84: Duct Type (Slim)

    – After unscrewing 2 screws – Disassemble the Cover Blower Upper with pushing its hook. 3) Disassemble the Cover Control. – Unscrew 2 screws 4) Disassemble Motor Wires connected to the inside of PCB and connected to the Capacitor. Samsung Electronics 4-40...
  • Page 85 6) Disassemble the band Motor for fixing the Motor. – Unscrew 2 screws 7) After disassembling the Motor and Blower for the set, disassemble the Blower by use of 3mm wrench. Ass'y Drain Pan 1) Disassemble the Cabinet-Top Evap. – Unscrew 11 screws 4-41 Samsung Electronics...
  • Page 86 1-3) and the Drain Pan 2-1), 2-2), 2-3). 1) Disassemble the Cover Pipe that fixes the high/low pressure Pipe. – Unscrew 2 screws 2) Disassemble the refrigerant temperature sensor, Inlet air temperature sensor, and EEV wire that connected to the inside of PCB. Samsung Electronics 4-42...
  • Page 87 1) Disassemble all Control Wires connected to the inside of PCB. 2) In case of disassembling the PCB separately, disassemble the PCB from the case with pushing the hook after unscrewing the screw. – Unscrew 1 screw 4-43 Samsung Electronics...
  • Page 88 5) In case of disassembling the Trans Power, unscrew the screw fixing on the Case. ✳ Disassemble if after disassembling the case PCB 4-4). Bracket Outlet 1) Disassemble the Bracket Outlet assembled on the Cabinet. – Unscrew 10 screws Samsung Electronics 4-44...
  • Page 89: Wall-Mounted Type

    Terminal Cover. 7) Detach the thermistor from the Front Grille. 8) Loosen 5 fixing screws of Front Grille. 9) Pull the lower left and right of discharge softly for the outside cover to be pulled out. 4-45 Samsung Electronics...
  • Page 90 Power Cord) 2) Detach the outdoor unit connection wire from the Terminal Block. 3) If pulling the main PCB up, it will be taken out. Tray Drain 1) Pull Tray Drain out from the Back Body. Samsung Electronics 4-46...
  • Page 91 1) Loosen 2 fixing screws and detach the & Motor Holder. Cross Fan 2) Loosen the fixing screw of Fan Motor. (with a M3 wrench) 3) Detach the Fan Motor from the Fan. 4) Detach the Fan from the left Holder Bearing. 4-47 Samsung Electronics...
  • Page 92: Ceiling Type

    Remark 1) Open the Grille by pressing 3 position. Electrical (center and both side) Part 2) Remove the air inlet Grille. 3) Open the cover of Electrical Component Box by removing the screws. (center and both side) Samsung Electronics 4-48...
  • Page 93 Disassembly and Reassembly Parts Procedure Remark 1) Remove the screw and untie earth & wire of Motor. Motor 2) Disconnect of housing of Motor wire. 3) Disconnect the Capacitor Wire. 4-49 Samsung Electronics...
  • Page 94 Disassembly and Reassembly Parts Procedure Remark 4) Remove the Guard Safety by removing the screws. 5) Remove the upper case of Fan. (2EA) 6) Remove the screws what is fix the Motor. 7) Remove the Fan and Motor assembly. Samsung Electronics 4-50...
  • Page 95 9) Remove the Fan. Drain Pan 1) Disconnect the Display PCB wire as shown in picture. (white housing) 2) Disconnect the Step Motor wire as shown in picture. (blue housing) 3) Disassemble the Hanger Bracket by removing the screw. 4-51 Samsung Electronics...
  • Page 96 4) Remove the screws of Front Side. 5) Disassemble the assembly Front Cover Part. 6) Disconnect the Step Motor wire as shown in picture. 7) Remove the wire clamp fixed in Base Part. 8) Remove the Front Cover assembly completely. Samsung Electronics 4-52...
  • Page 97 Remark 9) Remove the screw what is fix with Base Part and Drain Pan. (upper side:2EA) 10) Remove the screw what is fix with Base Part and Drain Pan. (lower side:2EA) 11) Remove the Drain Pan completely. 4-53 Samsung Electronics...
  • Page 98 2) Remove the screws shown in picture. 3) Remove the screws shown in picture and remove Plastic Part.(white) 4) Remove the screws shown in picture and remove Steel Bracket. 5) Disassemble the screws Steel Plate in rear side of unit. Samsung Electronics 4-54...
  • Page 99 Disassembly and Reassembly Parts Procedure Remark 6) Remove the screws as shown in picture. 7) Remove Plastic Cover as shown in picture. 8) Remove the Evaporator assembly. 4-55 Samsung Electronics...
  • Page 100 Motor assembly and remove the screws Stepping Motor. Display PCB 1) Remove the screws in rear side of Front Cover assembly as shown in picture. 2) Disassemble Display PCB assembly and disconnect wire. 3) Disassemble the Display PCB. Samsung Electronics 4-56...
  • Page 101: Outdoor Unit

    4-2 Outdoor Unit Parts Procedure Remark 1) Outdoor unit of a package airconditioner. Outdoor 2) Separate a front tightening part. 3) Separate the tightening part from side. 1) The connection status of Control Box Control Box wiring. 4-57 Samsung Electronics...
  • Page 102 ✳ When assembling the parts, check whether each parts and Electrical Connector fixed firmly. 1) Remove nut flanges(Turn screw leftward, Fan Motor but turn right if you want to remove). & 2) Disassemble Propeller Fans. Propeller Fan Samsung Electronics 4-58...
  • Page 103: Exploded Views And Parts List

    5. Exploded Views and Parts List 5-1 Indoor Unit 5-1-1 1-Way cassette type (Body) 14-2 14-1 14-3 Samsung Electronics...
  • Page 104 Exploded Views and Parts List Parts List Q'TY Code No. Description Specification SA/SNA AVMKH020EA4 AVMKH026EA4 AVMKH035EA4 DB90-00588E ASS'Y CABINET ASS'Y DB90-00704B ASS'Y HOLDER DRAIN PUMP ASS'Y, PS(V0) DB31-00303A DRAIN PUMP SAUREMAN DB69-00298A CUSHION BODY DB94-00196A ASS'Y CASE FAN SIDE ASS'Y, PS(V0)
  • Page 105: 1-Way Cassette Type (Panel)

    Exploded Views and Parts List 5-1-2 1-Way cassette type (Panel) Samsung Electronics...
  • Page 106 HIPS(UL94-V0) DB66-00157A LINK BLADE DB63-00163A COVER PCB CASE HIPS(UL94-V0) DB93-01021A DISPLAY PCB ASS'Y ASS'Y DB31-10153D STEP MOTOR MSFCC20A05 DB61-00535A HOLDER MOTOR HIPS(UL94-V0) DB64-00234B PANEL FRONT HIPS(UL94-V0) DB66-00159C BLADE H HIPS(UL94-V0) DB64-00243B GRILLE FRONT HIPS(UL94-V0) DB64-00244A GRILLE AIR INLET Samsung Electronics...
  • Page 107: 2-Way Cassette Type (Body)

    Exploded Views and Parts List 5-1-3 2-Way cassette type (Body) Samsung Electronics...
  • Page 108 ASS'Y DRAIN SOCKET ASS'Y DB69-00137A BAND RING STS304 DB69-00695A CUSHION BODY EPS(GRY) DB61-01468A CLIP BRUSH EPS(GRY) DB64-00778A CABINET BASE SGCC-M 0.7T DB64-00781A CABINET SIDE RH SGCC-M 0.7T DB64-00780A CABINET SIDE LF SGCC-M 0.7T DB61-00712A HOLDER CABINET SIDE SGCC-M 1.0T Samsung Electronics...
  • Page 109: 2-Way Cassette Type (Panel)

    Exploded Views and Parts List 5-1-4 2-Way cassette type (Panel) Samsung Electronics...
  • Page 110 ASS'Y DB61-00535A HOLDER MOTOR HIPS V0 BLK DB39-00874C C/W MOTOR STEP LONG UL1007 DB39-00874B C/W MOTOR STEP SHORT UL1007 DB93-01666A PCB DISPLAY DB39-00875A C/W DISPLAY UL1007 DB64-00745A INLAY WINDOW DB64-00746A INLAY BUTTON DB61-01238A CASE LED PCB CABLE CLAMP Samsung Electronics...
  • Page 111: 4-Way Cassette Type(Body : 4.5Kw~14.0Kw)

    Exploded Views and Parts List 5-1-5 4-Way cassette type(Body : 4.5kW~14.0kW) Samsung Electronics...
  • Page 112 SGCC-M,T0.8 DB90-00985A ASS'Y BASE-CUSHION ASS'Y DB90-01083B ASS'Y BASE-CUSHION ASS'Y DB69-00646A CUSHION-FAN DB61-01468A CLIP-BRUSH N6(1015CR),ø6 DB95-00131C ASS'Y-SENSOR FLOAT WS-1H,L43 DB61-01522A BRACKET-SWITCH SGCC-M,T1.0 DB31-00207A PUMP-DRAIN -,230V,50/60Hz,H112.1,60l/h 6001-001054 SCREW-MACHINE TH,+,M4,L10,ZPC(YEL),SM20C,- DB73-00022C RUBBER-PUMP NBR(BLK),-,50,14,-,-,-,-,- DB31-00290F MOTOR FAN OSME-366SAC(S800C) DB64-00717A CABINET-BASE SGCC-M,T1.0 Samsung Electronics 5-10...
  • Page 113 DB69-00646A CUSHION-FAN DB61-01468A CLIP-BRUSH N6(1015CR), ø6 DB95-00131C ASS'Y-SENSOR FLOAT WS-1H,L43 DB61-01522A BRACKET-SWITCH SGCC-M,T1.0 DB31-00207A PUMP-DRAIN -,230V,50/60Hz,H112.1,60l/h 6001-001054 SCREW-MACHINE TH,+,M4,L10,ZPC(YEL),SM20C,- DB73-00022C RUBBER-PUMP NBR(BLK),-,50,14,-,-,-,-,- DB31-00289G MOTOR FAN OSME-856SAC(S816C) DB31-00289F MOTOR FAN OSME-856SAC(S816B) DB31-00289C MOTOR FAN OSME-856SAC(S816A) DB64-00717A CABINET-BASE SGCC-M,T1.0 5-11 Samsung Electronics...
  • Page 114 MEMO Samsung Electronics 5-12...
  • Page 115: 4-Way Cassette Type (Panel)

    Exploded Views and Parts List 5-1-6 4-Way cassette type (Panel) 14+31 30 29 19 20 5-13 Samsung Electronics...
  • Page 116 CONNECT WIRE M-D ASS'Y DB39-00542C CONNECT WIRE MOTOR ASS'Y 6002-001079 SCREW TAPPING TH, +, 2S, M4, L10 6002-000536 SCREW TAPPING PH, +, 2S, M4, L8 6002-000534 SCREW TAPPING PH, +, 2S, M3, L8 DB72-00298A SEAL CUSHION FLOCKED Samsung Electronics 5-14...
  • Page 117: Duct Type (Low Silhouette)

    Exploded Views and Parts List 5-1-7 Duct type (Low silhouette) 19-2 19-3 19-5 19-1 19-4 5-15 Samsung Electronics...
  • Page 118 ASS'Y CASE CONTROL ASS'Y 19-2 DB93-01764D ASS'Y PCB MAIN IN ASS'Y 19-3 DB65-00004H TERMINAL BLOCK 6P 250V, 6P 19-4 2301-001370 CAPACITOR 2.5 µF 2301-001368 CAPACITOR 5.0 µF 19-5 DB65-00004C TERMINAL BLOCK 4P 250V, 4P DB32-00016B THERMISTOR ASS'Y 103AT Samsung Electronics 5-16...
  • Page 119: Duct Type (High Pressure)

    Exploded Views and Parts List 5-1-8 Duct type (High pressure) 12-2 12-1 12-8 12-3 12-4 12-9 12-6 12-7 12-5 10-1 10-5 10-6 10-2 10-4 10-3 5-17 Samsung Electronics...
  • Page 120 BLOWER LF SGCC-M 12-3 DB90-00313A ASS'Y HOUSING ASS'Y 12-4 DB64-00529A PANEL DUCT SGCC-M,T1.2 12-5 BD61-00911A SUPPORT MOTOR SGCC-M,T1.6 12-6 DB61-00541A HOLDER MOTOR SGCC-M,T2.0 12-7 DB61-20071A BASE MOTOR 12-8 DB61-00540A BRACKET MOTOR GUIDE SGCC-M,T1.6 12-9 DB67-00117B BLOWER RH SGCC-M Samsung Electronics 5-18...
  • Page 121: Duct Type (Built-In)

    31-2 31-3 31-1 31-4 31-5 31-6,7 31-8 20-1 31-9 Options Q'TY Code No. Description Specification SA/SNA MDP-075SB DB67-00145A HOSE DRAIN EPTM T1.5 DB69-00137B BAND RING STS304 T1.5 DB61-00697A BRACKET DRAIN PUMP ABS UL94-VO DB66-00058C PUMP DRAIN ASS'Y 5-19 Samsung Electronics...
  • Page 122 CASE PCB OUT ABS(UL94-V5) 31-5 DB93-01764D ASS'Y PCB MAIN IN ASS'Y 31-6 DB65-00004C TERMINAL BLOCK 4P 31-7 DB65-00004H TERMINAL BLOCK 6P 31-8 2301-001371 CAPACITOR 2.0 µF 2301-001379 CAPACITOR 4.0 µF 2301-001368 CAPACITOR 5.0 µF 31-9 DB61-40291B HOLDER WIRE Samsung Electronics 5-20...
  • Page 123 CASE PCB OUT ABS(UL94-V5) 31-5 DB93-01764D ASS'Y PCB MAIN IN ASS'Y 31-6 DB65-00004C TERMINAL BLOCK 4P 31-7 DB65-00004H TERMINAL BLOCK 6P 31-8 2301-001376 CAPACITOR 1.7 µF 2301-001370 CAPACITOR 2.5 µF 31-9 DB61-40291B HOLDER WIRE DB73-00097A RUBBER PARTITION 5-21 Samsung Electronics...
  • Page 124 MEMO Samsung Electronics 5-22...
  • Page 125: Duct Type (Slim)

    Exploded Views and Parts List 5-1-10 Duct type (Slim) 23-5 23-6 23-4 23-1 23-7 23-8 23-3 23-2 5-23 Samsung Electronics...
  • Page 126 COVER CONTROL SGCC-M,T0.5 23-4 DB61-40291A HOLDER WIRE PP BLACK 23-5 DB65-00105L TERMINAL BLOCK 6P 6P,POWER 23-6 DB65-00105M TERMINAL BLOCK 6P 6P,COMMUNICATION 23-7 DB26-10070G TRANS POWER 230V,50HZ 23-8 2301-001370 CAPACITOR 450V,1.5µF DB32-00142A ASS'Y THERMISTOR ASS'Y DB32-00141A THERMISTOR EVAP ASS'Y Samsung Electronics 5-24...
  • Page 127: Wall-Mounted Type

    Exploded Views and Parts List 5-1-11 Wall-mounted type 15-1 15-6 15-2 15-4 15-3 15-5 1-1-2 1-1-3 1-1-1 1-1-4 1-1-5 1-1-6 5-25 Samsung Electronics...
  • Page 128 ASS'Y REMOCON ASS'Y DB94-00304G ASS'Y BACK BODY ASS'Y DB94-00439E ASS'Y BACK BODY ASS'Y DB61-01335A BACK BODY HIPS DB61-01119A BACK BODY HIPS DB63-00580A COVER-IONIZER HIPS DB94-40007B ASS'Y BEARING ASS'Y DB94-00020E ASS'Y CROSS FAN ASS'Y DB94-00020D ASS'Y CROSS FAN ASS'Y Samsung Electronics 5-26...
  • Page 129 DB63-00592B TRAY DRAIN HIPS 15-2 DB94-00240D ASS'Y HOSE DRAIN ASS'Y 15-3 DB61-01103A BLADE-H HIPS DB61-01125A BLADE-H HIPS 15-4 DB61-01104A BLADE-V DB61-01126A BLADE-V 15-5 DB95-20138D ASS'Y STEPPING MOTOR ASS'Y 15-6 DB63-00634A GUARD-SAFETY WIRE STS27 DB63-00635A GUARD-SAFETY WIRE STS27 5-27 Samsung Electronics...
  • Page 130 MEMO Samsung Electronics 5-28...
  • Page 131: Ceiling Type

    Exploded Views and Parts List 5-1-12 Ceiling type 9 10 1112 45-7 45-6 45-3 45-4 45-5 45-2 45-8 45-1 5-29 Samsung Electronics...
  • Page 132 DB31-00179A MOTOR FAN ASS'Y(OSME-254SAC) DB67-00260A BLOWER DB61-01160A CASE FAN UP DB63-00611A COVER MOTOR SGCC-M DB61-01162A HOLDER MOTOR SGCC-M DB63-00738A GUARD SAFETY HSWR DB63-00739A GUARD FAN HSWR DB67-00257A DRAIN PAN DB67-00275A DRAIN PARTITION DB69-00617A CUSHION DRAIN A EPS(25FOAM-PS) Samsung Electronics 5-30...
  • Page 133 CEILING EU,PCB ASS'Y 45-4 DB65-00105D TERMINAL BLOCK 6P DAF-S6P 45-5 DB65-00105C TERMINAL BLOCK 6P DAF-S6P 45-6 DB26-10065B TRANS POWER ASS’Y 45-7 2301-001368 CAPACITOR 5uF 450VAC 2301-001369 CAPACITOR 3uF 450VAC 45-8 DB61-00250A CLAMP WIRE NYLON DB37-00029C THERMISTOR EVAP OUT ASS'Y 5-31 Samsung Electronics...
  • Page 134 MEMO Samsung Electronics 5-32...
  • Page 135: Outdoor Unit

    5-2 Outdoor Unit 13-1 13-2 5-33 Samsung Electronics...
  • Page 136 ASS'Y MAIN PCB ASS'Y DB97-02613A ASS'Y BRACKET-VALVE ASS'Y DB61-01857A BRACKET WIRE SECC-P,T1.0 DB64-01231A HANDLE SC-90073R DB99-00618B ASS'Y LIQUID BYPASS V/V ASS'Y DB99-00619A ASS'Y HOT GAS V/V ASS'Y DB95-00564C ASS'Y HEATER COMP ASS'Y DB99-00621A ASS'Y PWM VALVE ASS'Y Samsung Electronics 5-34...
  • Page 137 ASS'Y MAIN PCB ASS'Y DB97-02613A ASS'Y BRACKET-VALVE ASS'Y DB61-01857A BRACKET WIRE SECC-P,T1.0 DB64-01231A HANDEL SC-90073R DB99-00618B ASS'Y LIQUID BYPASS V/V ASS'Y DB99-00619A ASS'Y HOT GAS V/V ASS'Y DB95-00564C ASS'Y HEATER COMP ASS'Y DB99-00621A ASS'Y PWM VALVE ASS'Y 5-35 Samsung Electronics...
  • Page 138: Wiring Diagram

    6. Wiring Diagram 6-1 Indoor Unit 6-1-1 1-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 139: 2-Way Cassette Type

    Wiring Diagram 6-1-2 2-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 140: 4-Way Cassette Type

    Wiring Diagram 6-1-3 4-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 141: Duct Type (Low Silhouette/High Pressure/Built-In)

    Wiring Diagram 6-1-4 Duct type (Low silhouette/High pressure/Built-in) This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 142: Duct Type (Slim)

    Wiring Diagram 6-1-5 Duct type (Slim) This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 143: Wall-Mounted Type

    Wiring Diagram 6-1-6 Wall-mounted type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 144: Ceiling Type

    Wiring Diagram 6-1-7 Ceiling type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 145: Outdoor Unit

    6-2 Outdoor Unit 6-2-1 1 phase This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 146 Wiring Diagram 6-2-2 3 phase This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 147: Schematic Diagram

    7. Schematic Diagram 7-1 Indoor Unit 7-1-1 1-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 148: 2-Way Cassette Type

    7-1-2 2-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 149: 4-Way Cassette Type

    Schematic Diagram 7-1-3 4-Way cassette type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 150: Duct Type (Low Silhouette/High Pressure/Built-In)

    Schematic Diagram 7-1-4 Duct type (Low silhouette/High pressure/Built-in) This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 151: Duct Type (Slim)

    Schematic Diagram 7-1-5 Duct type (Slim) This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 152: Wall-Mounted Type

    Schematic Diagram 7-1-6 Wall-mounted type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 153: Ceiling Type

    Schematic Diagram 7-1-7 Ceiling type This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 154: Outdoor Unit

    7-2 Outdoor Unit This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 155: Circuit Descriptions

    8-1-1 1-Way cassette type Indoor Fan Control 485 COMM. Control (Non polarity) Display Electronic Expansion Valve Control Step Motor Indoor Unit Temperature Buzzer Control Indoor Unit Setting Up(Option) S/W This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 156: Way Cassette Type

    8-1-2 2-Way cassette type Indoor Fan Control Step Motor 485 COMM. Control (Non polarity) Indoor Unit Temperature Display Buzzer Control Electronic Expansion Valve Control Indoor Unit Setting Up(Option) S/W → Sub PCB This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 157: Way Cassette Type

    8-1-3 4-Way cassette type Indoor Fan Control Step Motor 485 COMM. Control (Non polarity) Indoor Unit Temperature Display Buzzer Control Electronic Expansion Valve Control Indoor Unit Setting Up(Option) S/W This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 158 8-1-4 Duct type (Low silhouette/High pressure/Built-in) Indoor Fan Control Indoor Unit Temperature 485 COMM. Control (Non polarity) Buzzer Control Display Indoor Unit Setting Up(Option) S/W Electronic Expansion Valve Control This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 159: Duct Type (Slim)

    Drain Pump, Hot Coil Wired Remote Controller Power 485 COMM. Control Indoor Unit Setting Up(Option) (Non polarity) Display Indoor Fan Control (TAP) Electronic Expansion Indoor Fan Control (SSR) Valve Control This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 160 Up Down Step Motor 485 COMM. Control Indoor Unit Temperature (Non polarity) Transmitter Power(12V) Display Indoor Unit Setting Up(Option) Electronic Expansion Valve Control Ionizer Auto Grille Step Motor Remocon Module This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 161: Ceiling Type

    8-1-7 Ceiling type Indoor Fan Control Step Motor 485 COMM. Control (Non polarity) Indoor Unit Temperature Display Buzzer Control Electronic Expansion Valve Control Indoor Unit Setting Up(Option) S/W → Sub PCB This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 162: Outdoor Unit

    Indoor Unit Setting up(Option) S/W Outdoor Display 3 Phase Check Part Electronic Expansion Valve Control KEY(special operation control) Outdoor Load Control Download Maim/Sub Comp., Bypass V/V, Sol V/V Download S/W This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 163 OUTDOOR UNIT Tair_out Tcond_mid 4-Way valve CONDENSER Hot gas Tair bypass valve _out Filter Expansion High pressure valve switch Filter PWM valve Compressor Tdis Liquid bypass valve Low pressure Switch Receiver Liquid pipe Accumulator Gas pipe Cooling Heating Samsung Electronics...
  • Page 164 It enables the change between cooling and heating by reversing the flow direction of refrigerant. 13. Electronic expansion valve (EEV) By sensing suction temperature and low pressure, controls the suction super heat and mass flow of refrigerant in heating mode. Samsung Electronics 8-10...
  • Page 165: Indoor Unit

    9. PCB Diagram 9-1 Indoor Unit 9-1-1 1-Way cassette type & Ventilator 12V Power Drain Pump Float Switch Fan Motor Step Motor Power HALL IC Display EVA out Temperature COM 2 Room Temperature COM 1 & EVA in Temperature Samsung Electronics...
  • Page 166 Step Motor : SMW200-06(WHT) Power : YW396-03AV(BLU) EEV : SMW250-05(BLU) HALL IC : SMW250-03(BLU) Display : SMW200-09(WHT) EVA out Temperature : SMW200-02(WHT) COM 2 : YW396-02(BLU) Room Temperature : SMW200-04(WHT) COM 1 : YW396-02(RED) & EVA in Temperature : SMW200-04(WHT) Samsung Electronics...
  • Page 167: 2-Way Cassette Type

    EVA out Temperature COM1 COM2 12V Power HALL IC1 Trans.out HALL IC2 Trans.in Display FAN CAP. & Sub PCB FAN CAP. Float Switch Fan Motor1 Step Motor Fan Motor2 Room Temperature Power “ EVA in Temperature Drain Pump Samsung Electronics...
  • Page 168 Sub PCB : SMW200-10(WHT) FAN CAP. : YW396-03AV(RED) Float Switch : SMW250-02(BLK) Fan Motor1 : YW396-05AV(WHT) Step Motor : SMW200-12(WHT) Fan Motor2 : YW396-05AV(BLU) Room Temperature : SMW250-04(WHT) Power : YW396-03AV(BLU) “ EVA in Temperature : SMW250-04(WHT) Drain Pump : YW396-03AV(YEL) Samsung Electronics...
  • Page 169: 4-Way Cassette Type

    PCB Diagram 9-1-3 4-Way cassette type & Display Fan Motor Step Motor Heater 12V Power Ventilator Drain Pump EVA in Temperature Power Room Temperature Trans in & EVA out Temperature COM 1 Heat-Thermal COM 2 Float Switch Trans out Samsung Electronics...
  • Page 170 EVA in Temperature : SMW250-04(WHT) Power : YW396-03AV(BLU) Room Temperature : SMW250-04(WHT) Trans in : YW396-03AV(WHT) & EVA out Temperature : SMW250-02(WHT) COM 1 : YW396-02(RED) Heat-Thermal : SMW250-02(YEL) COM 2 : YW396-02(BLU) Float Switch : SMW250-02(BLK) Trans out : SMW250-03(RED) Samsung Electronics...
  • Page 171: Duct Type (Low Silhouette/High Pressure/Built-In)

    9-1-4 Duct type (Low silhouette/High pressure/Built-in) & Heat-Thermal Float Switch EVA out Temperature Heater Room Temperature Fan Motor EVA in Temperature Drain Pump Display Ventilator Water Coil 12V Power Power & COM 2 Trans in COM 1 Trans out Samsung Electronics...
  • Page 172 Drain Pump : YW396-03AV(YEL) Display : SMW200-11(WHT) Ventilator : YW396-03AV(BLK) EEV : SMW250-05(BLU) Water Coil : YW396-03AV(RED) 12V Power : YW396-02(WHT) Power : YW396-03AV(BLU) & COM 2 : YW396-02(BLU) Trans in : YW396-03AV(WHT) COM 1 : YW396-02(RED) Trans out : SMW250-03(RED) Samsung Electronics...
  • Page 173: Duct Type (Slim)

    Heater Temperature Option Switch Wired Remote Controller Power(12V) Fan (Tap Control) Control Signal Ventilator & Drain Pump “ Display Hot Coil ‘ Operating Check Signal Fan (SSR) HALL IC Trans In Download Main Power COM 1 Trans out Samsung Electronics...
  • Page 174 Hot Coil : YW396-03AV(RED) ‘ Operating Check Signal : SMW250-04(RED) Fan (SSR) : YW396-05AV(WHT) HALL IC : SMW250-03(BLU) Trans in : YW396-03AV(WHT) Download : SMW200-10(WHT) Main Power : YW396-03AV(BLU) COM 1 : YW396-02(RED) Trans out : YW250-03(RED) Samsung Electronics 9-10...
  • Page 175: Wall-Mounted Type

    HALL IC Fan-Capacitor Main Power Ionizer COM 2 Download COM 1 Step Motor(Blade) Wired Remocon Controller Power(12V) Step Motor(Auto Grille 1) Room Temperature Step Motor(Auto Grille 2) & EVA in Temperature Display EVA out Temperature Remocon Module PCB 9-11 Samsung Electronics...
  • Page 176 Wired Remocon Controller Power(12V) : YW396-02(WHT) Step Motor(Auto Grille 1) : SMW250-05(WHT) Room Temperature : SMW200-04(WHT) Step Motor(Auto Grille 2) : SMW250-05(WHT) & EVA in Temperature : SMW200-04(WHT) Display : SMW200-14(WHT) EVA out Temperature : SMW200-02(WHT) Remocon Module PCB : SMW200-03(WHT) Samsung Electronics 9-12...
  • Page 177: Ceiling Type

    Drain Pump : YW396-03AV(YEL) EVA out Temperature : SMW250-02(WHT) Fan Motor : YW396-09AV(WHT) Step Motor : SMW200-06(BLU) COM2 : YW396-02(BLU) EEV : SMW250-05(BLU) COM1 : YW396-02(RED) Trans.out : SMW250-03(RED) & 12V Power : YW396-02(WHT) Trans.in : YW396-03AV(WHT) Display : SMW200-09(WHT) 9-13 Samsung Electronics...
  • Page 178 MEMO Samsung Electronics 9-14...
  • Page 179: Outdoor Unit

    4-Way Valve Trans out PWM Valve Trans in Compressor & 3 Phase Detection Hot Gas Bypass Valve 12 : Room Temperature Liquid Bypass Valve 34 : Cond mid Temperature 56 : Cond out Temperature Main Power Download Earth 9-15 Samsung Electronics...
  • Page 180 12 : Room Temperature : Liquid Bypass Valve : YW396-03AV(BLK) SMW250-06(WHT) 34 : Cond mid Temperature : CCH : YW396-07AV(RED) SMW250-06(WHT) 56 : Cond out Temperature : Main Power : YW396-07AV(WHT) SMW250-06(WHT) Download : SMW200-10(WHT) Earth : YOW236-01(WHT) Samsung Electronics 9-16...
  • Page 181: Operating Instruction

    • Duct type air conditioner does not have function of adjusting air flow direction. Therefore, the function is not operated even if you press the swing button. Note : • The heating mode( ) is not selected in cooling only models. 10-1 Samsung Electronics Samsung Electronics...
  • Page 182: The Receiver & Display Unit

    On/Off indicator(Blue) & Removing frost indicator(Red) - Cooling Only Models : On/Off indicator ◗ Standard Type Removing frost indicator (Except Cooling Only Models) Filter sign indicator Remote control sensor On/Off indicator Fan indicator On/Off button Timer indicator Samsung Electronics Samsung Electronics 10-2...
  • Page 183: Wired Remote Controller-Buttons And Display

    You must not press it. Note : • After cleaning the air filter, press the button. Then the wired remote controller will display the Filter Sign indicator when the time to clean the air filter. 10-3 Samsung Electronics...
  • Page 184: Centralized Controller

    ◗ Side View Operating Mode Switch COOL AUTO HEAT Note : • Choose the appropriate operating mode with the Operating Mode Switch that enables the user to choose between the Cool/Auto/Heat mode. Samsung Electronics 10-4...
  • Page 185: Function Controller

    You must not press it. Note : • After cleaning the air filter, press the button. Then the wired remote controller will display the Filter Sign indicator when the time to clean the air filter. 10-5 Samsung Electronics...
  • Page 186: Remote Control - Buttons And Display (Wall-Mounted Type)

    On Timer setting On/Off button Temperature adjustment buttons Mode selection button Digital On/Off button (AUTO, COOL, DRY, FAN, HEAT) Swing button Fan speed adjustment button Turbo button Timer Set/Cancel button On Timer button Off Timer button Sleep button Samsung Electronics 10-6...
  • Page 187: Troubleshooting

    11-1 Operation flow of outdoor unit Power on Tracking completed? E2 error(tracking error) Is 3 phase power OK? P4 error (reverse phase/ open phase error) Is preheating of CCH completed? Preheating CCH (For 2.5 hours) Normal operation 11-1 Samsung Electronics...
  • Page 188 10 11 12 13 14 15 16 units numbers Switch arrow location 3. If the numbers of indoor units checked through installed indoor unit number setting switch do not match with those during tracking, the display shows Er and E2 alternately. Samsung Electronics 11-2...
  • Page 189 5) If there is abnormal condition even after one more check, check the color of 3 phase power. If there is no abnormal as a result of check, replace the PCB. single phase clamp AC220V supply line communication line indoor power 3 phase power supply line supply line 11-3 Samsung Electronics...
  • Page 190 4. The check of operation ability by the temperature is performed only once at the initial stage. However, in case that the product is installed and operated for the first time, the power shall be put 6 hours before. Samsung Electronics 11-4...
  • Page 191: Self-Diagnosis By The Outdoor Unit Error Display

    PCB, and measure the resis- tance value between the both terminals. 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the indoor room temperature sensor because it is defect. Restart after PCB exchange. 11-5 Samsung Electronics...
  • Page 192 PCB, and measure the resistance value between the both terminals. 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the indoor EVAP IN sensor because it is defect. Restart after PCB exchange. Samsung Electronics 11-6...
  • Page 193 PCB, and measure the resistance value between the both terminals. 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the indoor EVAP OUT sensor because it is defect. Restart after PCB exchange. 11-7 Samsung Electronics...
  • Page 194 Tcond, out - Tair, out < 2°C Compressor running & indoor unit on and thermo on Error contents Indoor unit EVAP IN sensor breakaway 2. Check method Check if the indoor unit EVAP IN sensor is separated, and adjust after assembly. Samsung Electronics 11-8...
  • Page 195 Tcond, out - Tair, out < 2°C Compressor running & indoor unit on and thermo on Error contents Indoor unit EVAP OUT sensor breakaway 2. Check method Check if the indoor unit EVAP OUT sensor is separated, and adjust after assembly. 11-9 Samsung Electronics...
  • Page 196 PCB and measure the resistance value between the 2 terminals. Is not the resistance value out of range from the temperature table? It is the self-error of MCU temperature sensor. Replace it. Restart after exchanging PCB. Samsung Electronics 11-10...
  • Page 197 Outdoor unit display (x x x : Indoor unit address occurred error) (Operation) (Timer) (Fan) (Filter) (Removing frost) Indoor unit display Judgment method Causes - The starting error of x indoor unit fan motor 11-11 Samsung Electronics...
  • Page 198 If there is no defect, search the indoor unit that After check the communication wire interrupts the communication by connecting the and connecter of the outdoor unit PCB, indoor unit one by one. And after check a wire, replace the PCB. displace the indoor unit PCB. Samsung Electronics 11-12...
  • Page 199 If there is no defect, search the indoor unit that interrupts the communication by connecting the indoor unit one by one. And after check a wire, displace the indoor unit PCB. GOOD +0.7V -0.7V 11-13 Samsung Electronics...
  • Page 200 PCB, and measure the resistance value between the both terminals. 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the outdoor temperature sensor because it is defect. Restart after PCB exchange. Samsung Electronics 11-14...
  • Page 201 PCB, and measure the resistance value between the both terminals. 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the outdoor COND OUT sensor because it is defect. Restart after PCB exchange. 11-15 Samsung Electronics...
  • Page 202 Error contents Outdoor unit COND OUT sensor breakaway 2. Check method Check if the corresponding outdoor unit COND OUT sensor is separated according to the error code, assemble and adjust it. Samsung Electronics 11-16...
  • Page 203 12.1 18.0 27.3 43.0 Is the resistance value far from the temperature table? Replace the outdoor heat exchanger temperature sensor because it is defect. Restart after PCB exchange. 11-17 Samsung Electronics...
  • Page 204 Replace the digital compressor discharge temperature sensor because it is defect. Temperature Resistance Temperature Resistance (˚C) (kΩ) (˚C) (kΩ) Restart after PCB exchange. 11.2 18.5 10.8 MUF-0601 Another model (model used PWM compressor) Samsung Electronics 11-18...
  • Page 205 Check if the corresponding compressor sensor is separated according to the error code, assemble and adjust it. ✳Display method of the order and number of compressor (In case of 4 compressors) Control Box Control Box Front Digital compressor 11-19 Samsung Electronics...
  • Page 206 Replace the motor after checking Test operation for every the connection wire of fan motor. room(KEY 4) Is high/low pressure normal ? After checking the quantity of refrigerant, if needed recharge It is completed to check the system. the refrigerant. Samsung Electronics 11-20...
  • Page 207 After switching power breaker off exchange the 2 lines among the three lines of 3 phases inlet. And check again it. Is E425 error occurred again? Normal operation Replace the PCB because it is a defect of 3 phases detection circuit. 11-21 Samsung Electronics...
  • Page 208 If the above error code is occurred despite of condition being not included above judge method, read the value of outdoor inlet air temperature by use of view mode or S-net. And then if it is different with the actual outdoor temperature, replace the temperature sensor. Samsung Electronics 11-22...
  • Page 209 Teva, out - Tair, in ≥ 3˚C Teva, in - Tair, in ≥ 2˚C Tcond, out - Tair, out < 2˚C Compressor running & indoor unit on and thermo on Error contents Loading failure or OLP Trip 11-23 Samsung Electronics...
  • Page 210 • If waiting at the state that the power is on during the temperature failing down. CCH(Crank case heater) operates to delay the time to restart. Accordingly, separate the connecter to the CCH to block the power and reconnect the connecter after the completion of final check. Samsung Electronics 11-24...
  • Page 211 This is the special operation mode to recollect oil discharged from the compressor, and it is entered for 3 minutes in 7 hours interval. It returns to the normal operation after oil collection operation for 3 minutes automatically. 11-25 Samsung Electronics...
  • Page 212 After checking the wired remote control/RMC address switch, replace the remote control and PCB of indoor unit. Reset the address of wired Reset the RMC address of remote control to "1". indoor unit to "1". Reset the power of indoor unit. Samsung Electronics 11-26...
  • Page 213 4) If there is no trouble for the above checks, replace the EEV of the corresponding indoor unit. G Since the replacement of EEV is the inconvenient work to collect the all refrigerant in the system, be sure to check the above items before replacing EEV. 11-27 Samsung Electronics...
  • Page 214 3) In heating mode (Every condition below should be satisfied 20 minutes over.) Detection condition More than 2 indoor unit's are thermo on running for heating mode. The average value of high pressure is 18kg/cm over. Indoor unit T (EVA_IN) < T(room) +3˚C T (EVA_out) < T(room) +3˚C Samsung Electronics 11-28...
  • Page 215 4) If there is no abnormal with above check items, replace the EEV of the related indoor unit. Be sure to check above items before the replacement of EEV because the replacement of EEV is a hard work to collect refrigerant of total in the system. 11-29 Samsung Electronics...
  • Page 216 4) If there is no trouble for the above checks, replace the EEV of the corresponding indoor unit. G Since the replacement of EEV is the inconvenient work to collect the all refrigerant in the system, be sure to check the above items before replacing EEV. Samsung Electronics 11-30...
  • Page 217: Self-Diagnosis By Led Indoor Unit

    9. COMP DOWN due to 2 detection of low pressure switch 10. Error of reverse phase 11. Compressor down due to 6 detection of freezing 12. Self-diagnosis of condensation sensor (G8, G9) 13. Compressor down due to condensation ratio control 11-31 Samsung Electronics...
  • Page 218 Indoor unit heat exchanger out temperature sensor error (open/short) Indoor fan error Mixed operation error (operate heat & cool mode at same time) EEPROM error Option setting error Installed indoor unit number setting error Error connecting power line to communication line of indoor unit. Samsung Electronics 11-32...
  • Page 219: Defect Judgment And Troubleshooting By S-Net

    G S-NET check screen may be some difference according to the model. G It is a S-NET check method in cooling mode. G Some defects can be displayed similarly with the other defect on S-NET. 11-33 Samsung Electronics...
  • Page 220 2. Check the middle temperature of condensing temperature(T-Cond). G Check the middle temperature of condenser. G It is normal if the temperature 5˚C ~ 20˚C over than that of outdoor(T-air. out). Example) Condensing Temp.(29+5): 34˚C ≤ 45˚C ≤ (29+20) : 49˚C Samsung Electronics 11-34...
  • Page 221 Example) Condensing temperature (45˚C) - Subcooling temperature (42˚C) = 3˚C G Example) Degree of over cooling : 1˚C ≤ 3˚C ≤ 10˚C 4. Check if the outdoor unit fan operates. G This checks the low/high operation of fan. (The operation status is displayed with red color.) 11-35 Samsung Electronics...
  • Page 222 Troubleshooting 11-4-3 Indoor unit 1. Check the EEV OPEN (E-valve). G EEV OPEN maintains 100~250 step, it is judged normal. Samsung Electronics 11-36...
  • Page 223 G But, if the room temperature is so higher than the room average temperature, it is a failure. Example) 10˚C ≤ (21-4) ≤ 17˚C 10˚C ≤ (18-3) ≤ 15˚C 10˚C ≤ (21-3) ≤ 18˚C Examp10˚C ≤ (21-5) ≤ 19˚C 10˚C ≤ (18-4) ≤ 14˚C 11-37 Samsung Electronics...
  • Page 224 G But, if the room temperature is so higher than the room average temperature, it is a failure. Example) 10˚C ≤ (21-3) ≤ 18˚C 10˚C ≤ (18-6) ≤ 12˚C 10˚C ≤ (21-5) ≤ 16˚C G Example) 10˚C ≤ (21-7) ≤ 17˚C 10˚C ≤ (18-6) ≤ 12˚C Samsung Electronics 11-38...
  • Page 225: S-Net Defect Type And Check Method

    • T-discharge : 57˚C < 70˚C • After about an hour operation after refrigerant discharging, check the • 44(T-cond)-33(T-subcool)=11˚C > 10˚C S-NET. And assure whether it is out of the above conditions. 11-39 Samsung Electronics...
  • Page 226 • T-discharge : 57˚C < 70˚C • After about an hour operation after refrigerant discharging, check the • 44(T-cond)-33(T-subcool)=11˚C > 10˚C S-NET. And assure whether it is out of the above conditions. Samsung Electronics 11-40...
  • Page 227 • T-evap in, T-evap out apply the same way the sensor. • Replace the indoor unit PCB if the resistance valve is normal. • After Replacing, check the S-NET. And assure whether it is out of the above conditions. 11-41 Samsung Electronics...
  • Page 228 - If a noise "tick-, tick-" is detected, re-operate the indoor unit more than an hour to check the change of the temperature of indoor unit inlet/outlet. • If there is no any change for an hour operation, replace the EEV or check the pipe clogging. Samsung Electronics 11-42...
  • Page 229 S-NET at the operation of an outdoor unit. • If the operation is going on, P3 and P0 errors are occurred between outdoor units mixed up communication wires. 11-43 Samsung Electronics...
  • Page 230 • The auto reset is frequent due to the operation of high • The obstacles are piled beside the outdoor unit pressure switch. heat exchanger. The outdoor unit is installed wrong at the airtight site. → Check the installation status and remove the obstacles. Samsung Electronics 11-44...
  • Page 231 → If it is higher than the sensible temperature of another indoor unit inlet) may be occurred at the outdoor unit pipe, the pipe is clogged. : Displace the heat exchanger. PCB. (According to the condition of temperature) 11-45 Samsung Electronics...
  • Page 232 • The step of EEV rises.(480 STEP). • Ax error (Department of drain pipe sensor of No. x indoor unit inlet) may be occurred at the outdoor unit PCB. (According to the condition of temperature) Samsung Electronics 11-46...
  • Page 233 • Check if the PWM connecter is departed. • The temperature of indoor unit inlet/outlet is down to • After checking the pressure of refrigerant, recharge the the below 0˚C. refrigerant. • P3 or P0 error is occurred at the outdoor unit PCB. 11-47 Samsung Electronics...
  • Page 234 • The temperature of indoor unit inlet/outlet and room is same. • Check PWM OPEN. ’ Check the ON/OFF when applying the power. • G2 error is occurred at the outdoor unit PCB. • Check the full leakage of refrigerant through the refrigerant pressure check. Samsung Electronics 11-48...
  • Page 235 • Operation/Fan error is flickering on the indoor unit. • Check the resistance of outdoor temperature sensor. • t1 error is displayed on the outdoor PCB. • Replace the outdoor temperature sensor and check S-NET. • T-air out is -40˚C 11-49 Samsung Electronics...
  • Page 236 • Operation/Fan error is flickering on the indoor unit. • Check the resistance of outdoor unit Cond mid sensor. • t2 error is displayed on the outdoor PCB. • Replace the outdoor unit Cond mid sensor and check S-NET. • T-air out is -40˚C. Samsung Electronics 11-50...
  • Page 237 • Operation/Fan error is flickering on the indoor unit. • Check the resistance of outdoor unit Cond out sensor. • t4 error is displayed on the outdoor PCB. • Replace the outdoor unit Cond out sensor and check S-NET. • T-air out is -40˚C. 11-51 Samsung Electronics...
  • Page 238 11-5-14 Department of the connecter of Outdoor unit temperature sensor Phenomenon Check method • Operation/Fan error is flickering on the indoor unit. • Check the department of connecter of outdoor unit temperature sensor. • The temperatures related to outdoor unit all are displayed at -40˚C. Samsung Electronics 11-52...
  • Page 239 Check method • Operation/Fan error is flickering on the indoor unit. • Check the department of connecter of outdoor unit temperature sensor. • T-discharge is displayed at 0˚C. • t3 error is displayed on the outdoor PCB. 11-53 Samsung Electronics...
  • Page 240: Block Diagram

    Buzzer Control Electronic Expansion Valve Control Indoor Unit Temperature Option Setting Up Indoor Unit Fan Control Manual Address Electronic Expansion Valve Control Centralized Control *Wired remote controller Wired remote controller Power Centralized Control *Wired remote controller communication Samsung Electronics 12-1...
  • Page 241: 2-Way Cassette Type

    Buzzer Control Electronic Expansion Valve Control Indoor Unit Temperature Option Setting Up Indoor Unit Fan Control Manual Address Electronic Expansion Valve Control Centralized Control *Wired remote controller Centralized Control *Wired remote controller communication *Wired Remote Controller Power 12-2 Samsung Electronics...
  • Page 242 Block Diagram 2-Way cassette type (cont.) Indoor Unit Setting Up RMC ADD. Setting Up SUB PCB Setting Up(Option) Connect to Indoor Unit Samsung Electronics 12-3...
  • Page 243: 4-Way Cassette Type

    Buzzer Control Electronic Expansion Valve Indoor Unit Temperature Control Option Setting Up Indoor Unit Fan Control Electronic Expansion Valve Control Manual Address Centralized Control *Wired remote controller Wired remote controller Power Centralized Control *Wired remote controller communication 12-4 Samsung Electronics...
  • Page 244: Duct Type (Low Silhouette/High Pressure/Built-In)

    Display MICOM Indoor Unit Temperature Electronic Expansion Valve Control Indoor Unit Fan Control Option Setting Up Electronic Expansion Valve Control Manual Address Centralized Control *Wired remote controller Centralized Control *Wired remote controller communication Wired remote controller Power Samsung Electronics 12-5...
  • Page 245: Duct Type (Slim)

    485 Comm. Indoor Unit Load Control Control Heater, Ventilation Drain PUmp, Hot Coil Centralized Control *Wired remote controller Indoor Unit Fan Control Wired remote (TAP) controller Power Centralized Control *Wired remote controller communication Indoor Unit Fan Control (SSR) 12-6 Samsung Electronics...
  • Page 246: Wall-Mounted Type

    Auto Grille Step Motor Up/Down Step Motor Indoor Unit Temperature MICOM Indoor Unit Fan Control Electronic Expansion Valve Control Ionizer Electronic Expansion Valve Remocon Module Control The Power of Centralized Control Airflow (12V) Centralized Control *Wired remote controller Samsung Electronics 12-7...
  • Page 247: Ceiling Type

    Buzzer Control Electronic Expansion Valve Control Indoor Unit Temperature Option Setting Up Indoor Unit Fan Control Manual Address Electronic Expansion Valve Control Centralized Control *Wired remote controller *Wired Centralized Remote Controller Control Power *Wired remote controller communication 12-8 Samsung Electronics...
  • Page 248: Outdoor Unit

    Outdoor Unit Temperature/Pressure Sensor, Low-pressure Switch MAIN PCB Transmitter Power (12V) Electronic Expansion Valve Control Outdoor Unit Fan Control Outdoor Unit Load Control Comp, Bypass V/V, Sol V/V, CCH Download Centralized Control *Wired remote controller *Transmitter *Centralized Controller Samsung Electronics 12-9...
  • Page 249: Reference Sheet

    @ Classification of product & Version 1-Way 0, 1, 2, 3 ... Cassette % Power supply 2-Way type 220V, 60Hz 4-Way 220~240V, 50Hz Low silhouette High pressure Duct type Low pressure Built-in Slim Wall-mounted type Ceiling type 13-1 Samsung Electronics...
  • Page 250 ✳ M=R22, X=R410A % Capacity Low silhouette Indoor High pressure x 1/10 kW Duct Unit @ Product type Built-in Cassette type ^ Rating Voltage Slim Indoor Duct type Unit 220V, 60Hz 220~240V, 50Hz Ceiling CONV & Version Samsung Electronics 13-2...
  • Page 251: Outdoor Unit

    Cooling only (C/O) 115V, 60Hz Variable capacity free joint multi (DVM) Heat pump (H/P) 220V, 60Hz 208~230V, 60Hz $ Capacity (x1/10kW, 3 digits) @ Semi-finished product-2 200~220V, 50Hz mini-DVM 220~240V, 50Hz 380~415V, 50Hz, 3ø ^ Refrigerant R410A 13-3 Samsung Electronics...
  • Page 252: The Setting Of Indoor Address And Option Switch

    2. If the wired remote control and centralized controller is used, SW03 K1, K2 switch setup should be needed. 3. SW03 RMC switch setup is not needed when the wired remote control and centralized controller is not used. Note : • PCB type may be different according to the model Samsung Electronics 13-4...
  • Page 253 • It may be occurred the indoor unit operation error if the switch is set at will on installation. • Be sure to adjust the setup of switch ON/OFF to its function. • Confirm usable switch label each indoor unit. 13-5 Samsung Electronics...
  • Page 254 SW05 FUNCTION SWITCH NO. SWITCH ON SWITCH OFF WIRED REMOTE CONTROLLER NOT USED USED CENTRALIZED CONTROLLER NOT USED USED HEATING ROOM TEMP. COMPENSATION 2˚C 5˚C INDOOR UNIT EEV OPEN AT HEATING FIXED TO 80 0 OR 80 Samsung Electronics 13-6...
  • Page 255: The Setting Of Outdoor Unit Option Switch And Key Function

    10 11 12 13 14 15 16 indoor unit installation The number of switch Example) If 3 indoor units are installed, adjust the arrow of switch to "3". Note : • The display method of English characters and figures on PCB display part 13-7 Samsung Electronics...
  • Page 256 (SEG 3, 4 display) (SEG 3, 4 display) Heating refrigerant Cooling refrigerant 1 time Reset Data display supplement( supplement( Heating test Cooling test 2 time operation( operation( Refrigerant collection 3 time Completion Pump down 4 time Completion Samsung Electronics 13-8...
  • Page 257 Temp.+3˚C Spare Spare Defrost a option 1 Defrost Defrost Defrost Defrost temperature temperature temperature temperature α α α α Defrost a option 2 = MID = HIGH = MID = Low sw03 Spare Auto/Manual Manual Auto Address 13-9 Samsung Electronics...
  • Page 258: Test Operation

    G Check the power L1(RED), L2(WHITE), and L3(BLACK) 3 phases of the compressor and the cabinet panel by use of 3 phases tester. G Check the 220V by use of the tester. 3 phases tester Samsung Electronics 13-10...
  • Page 259 • Check the input value after 30 minutes after running the compressor because the high/low is changed continually at the initial operation. • Don't perform the system operation more than 1 hour to check system pressure. 13-11 Samsung Electronics...
  • Page 260 G Connect a RS-485 converter with COM1 or COM2 port of computer. G Set the position of converter slide to 485 and M. G Connect the communication wire connected with converter to F1,F2 terminal. • Connect the communication wire with (TX+:F1),(TX-:F2) on connecting. Samsung Electronics 13-12...
  • Page 261 (3 PHASES: T1(L1)(R) → (RED), T2(L2)(S) → WHITE, T3(L3)(T) → BLACK, SINGLE PHASE: R → RED, S → WHITE, C → BLACK) G Check if the connected indoor unit of all operated. 2. Perform the of S-NET program installed on the computer. 13-13 Samsung Electronics...
  • Page 262 G Stop the system operation by pressing the test operation key after the completion of the test operation. – Reassemble the cover of outdoor unit, and attach the notice label about the power onto the power panel. Samsung Electronics 13-14...
  • Page 263 (T-cond. _ T-subcool = subcooling Temp.) G It is normal if the subcooling temperature is 1˚C ~ 10˚C Example) T-cond. _ T-subcool = 45˚C - 42˚C = 3˚C The subcooling Temp. : 1˚C ≤ 3˚C ≤ 10˚C 13-15 Samsung Electronics...
  • Page 264 10˚C ≤ (21-5) = 16˚C Example) 10˚C ≤ (24-7) = 17˚C Example) 10˚C ≤ (18-6) = 12˚C Example) • Operation status is judged by not 6 items of above separately but the relation of 2 items over at least. Samsung Electronics 13-16...
  • Page 265 G The operation range is 0 ~ 480 step, and it operates at 350 ~ 450 step on heating. G If the high head option is used by the change of option code of indoor unit, it operates at 200 ~ 480 step. 13-17 Samsung Electronics...
  • Page 266 13-4-5 Installation Keep the air conditioner pipe outlet and inlet free from its surroundings. In case of breakdown, keep the symmetry and fix it to prevent vibration. The pipe length shall meet the standard as far as possible. Samsung Electronics 13-18...
  • Page 267: Installation Of Air Conditioner

    G Use a torque wrench when connecting the drainpipe or flare nut. ˇ Expanding bar Outer ø6.35mm ø9.52mm ø12.70mm ø15.88mm ø19.05mm Diameter(D) Torque 140~170 250~280 380~420 440~480 990~1,210 (kgf . cm) Depth 1.3mm 1.8mm 2.0mm 2.2mm 2.2mm 13-19 Samsung Electronics...
  • Page 268 G Observe "the technical standard for electric equipment" and "Indoor wiring regulations" for the electric and grounding work. 7. Check and test operation G After the test operation, explain the main functions of air conditioner to the customer. And then finish the installation. Samsung Electronics 13-20...
  • Page 269 MEMO 13-21 Samsung Electronics...
  • Page 270 ELECTRONICS This Service Manual is a property of Samsung Electronics Co., Ltd. © Samsung Electronics Co., Ltd. Jan. 2006. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No. DB98-24103A(1)

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