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Summary of Contents for Samsung ASH-0906ER

  • Page 1: Room Air Conditioner

    ROOM AIR CONDITIONER ASH-0906ER ASH-1206ER SERVICE Manual AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Operating Instructions and Installation 4. Disassembly and Reassembly 5. Troubleshooting 6. Exploded Views and Parts List 7. Block Diagrams 8. PCB Diagrams 9. Wiring Diagrams...
  • Page 2: Precautions

    Relocate the unit if necessary. 9. Keep children away from the unit while it is being repaired. 10. Be sure to clean the unit and its surrounding area. Fig. 1-3 No Kids Nearby! Fig. 1-4 Clean the Unit Samsung Electronics...
  • Page 3 Memo Samsung Electronics...
  • Page 4: Product Specifications

    2. Product Specifications 2-1 Table Model ASH-0906ER ASH-1206ER Item Indoor unit outdoor unit Indoor unit outdoor unit Type Wall-mounting Wall-mounting Cooling BTU/h 9,000 12,000 Dehumiditying Heating BTU/h 10,000 12,500 Low temp. heating BTU/h Air volume Cooling /min Perfor- Heating /min...
  • Page 5 2-2-1 Indoor Unit (Front view) (정면도) Remote control (원격조정기) Air in 공기 흡입 Air out 공기배출 Installation plate (취부판) (Rear view) 실내기 외형선 (배면도) 123.5 123.5 228.5 258.5 2-2-2 Outdoor Unit (Front view) (Rear view) (정면도) (배면도) 418.5 Samsung Electronics...
  • Page 6: Operating Instructions And

    ▼ (DOWN) �If the ▼ button is pressed once, CONTINUOUS KEY the setting temperature is decreased by 1℃ SLEEP �Use this button for sleep operation. ONE SHOT KEY (The SLEEP mode can be selected at COOL and HEAT mode.) Samsung Electronics...
  • Page 7 When the temperature has been raised by total of 2℃, that temperature is maintained. �In HEAT mode : The setting temperature is automatically droped by 1℃ each 1hour. When the temperature has been droped by total of 2℃, that temperature is maintained. Samsung Electronics...
  • Page 8 REMOTE CONTROL. (total 7 steps) 12. Q.TIMER: Q. timer(quick timer) allows reservation or cancel the timer on and timer off quickly When Q.timer button is pressed at operating state, LCD displays the polling state sequentially. The LCD also displays the time remaining. Samsung Electronics...
  • Page 9 It is harmful to the air conditioner if it is used in the following environments: greasy areas(including areas near machines), salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice. Samsung Electronics...
  • Page 10: Installation Diagram Of Indoor Unit And Outdoor Unit

    � Remote control Remote control holder � � � Piping (Liquid) 1/4" � Clamper tube � � Piping (Gas) 1/2" Installation plate � Installation tube � Pipe-connection � � Vinyl tape Screw � Putty � Drain hose Samsung Electronics...
  • Page 11 3-2-2(b) Wiring connection (indoor unit) 1. Open the Grille and remove the screw securing the cover. 2. Firmly connect the cable connector with EL- connector. (3pin) 3. Assembly every parts by contrary order to disassembly. Screw Samsung Electronics...
  • Page 12 2. Pass the pipes through the hole in the wall, and hook the indoor unit to the installation plate. 3. Move the indoor unit to the right and left to make sure that the unit is securely hooked on to the installation plate. Samsung Electronics...
  • Page 13 Drain hole Drain plug Grounding (The parts for this work are optional) ● The grounding screw hole is located in the position shown. ● A grounding terminal can be found on the outdoor unit as illustrated. Grounding screw hole Samsung Electronics...
  • Page 14 Caution : Burrs not removed may result in leakage of gas. Pipe Slanted Rough 90� Reamer 3) Insert a flare nut into the pipe and modifty flare. Outer diameter A(mm) ∅6.35mm ∅9.52mm ∅12.7mm * Unproper flaring Inclined Surface Cracked Uneven damaged thickness Samsung Electronics...
  • Page 15 Half union 6. Open the 2-way valve and 3-way valve completely Liquid pipe side Gas pipe side 7. Close the cap of each valve. 2-way valve 3-way valve 8. Check each valve for leakage. Outdoor Unit 3-10 Samsung Electronics...
  • Page 16 7. Stop operation of the air conditioner. 3Way Valve 3-Way Valve 8. Close the 3-way valve, disconnect the pressure gauge, and open the 3-way valve again. 9. Close the cap of each valve. 3-11 Samsung Electronics...
  • Page 17 (R-22) for every 1m. (R-22) for every 1m. 3-2-2(j) Flare unt fixing torque Torque (kg-cm) Outter diameter Fixing Torque Final Torque ∅ 6.35 (9000Btu, 12000Btu) (Liquid Side) ∅ 9.52 (9000Btu) (Gas Side) ∅ 12.7 (12000Btu) (Gas Side) 3-12 Samsung Electronics...
  • Page 18 7. Move the indoor and outdoor units to a plug to avoid foreign material entering. new locatioon. 8. Remove the mounting plate for the indoor unit and move it to a new location. 3-13 Samsung Electronics...
  • Page 19 Memo 3-14 Samsung Electronics...
  • Page 20: Disassembly And Reassembly

    5) Take the electroprecipitator out. 6) Loosen the two of the fixing screws. 7) Loosen one of the right fixing screws and separate the terminal cover. 8) Pull the upper center of discharge softly for the outside cover to be pulled out. Samsung Electronics...
  • Page 21 PCB upper side out 4) If pulling the Main PCB up. it will be taken out. Heat Exchanger 1) Do 1 and 2, above 2) Separate the holder at the rear side of Indoor unit. 3) Take the display PCB out. Samsung Electronics...
  • Page 22 5) Loosen the left and right screw of the heat exchanger. 6) Pull tray drain out from the Back body. 7) Lifting up the heat exchanger a little and open to the left to separate the heat exchanger from the left brackets. Samsung Electronics...
  • Page 23 3) Loosen the fixing screws of motor fan. (By use of M3 wrench.) Separate the motor from the fan. Separate the fan from the left holder bearing. Samsung Electronics...
  • Page 24 4) Loosen eleven fixing screws and separate the front cabinet. Fan and Motor 1) Do “1” , above. 2) Separate the two fixing screws of protection mesh from the front side of the front cabinet. Samsung Electronics...
  • Page 25 2) Open the terminal cover of compressor and unscrew the connection terminal. 3) Disassemble the inlet and outlet pipe of compressor by welding. 4) Disassemble the inlet and outlet pipe of condenser by welding 5) Remove the nut flange and separate the compressor. Samsung Electronics...
  • Page 26: Troubleshooting

    Restore from power failure (input initial power) TIMER LED(YELLOW) blinking (5Hz) Temperature sensor defective(open, short) COOL(GREEN), TIMER LED(YELLOW) blinking (5Hz) Indoor heat exchanger sensor defective(open, short) FAN(GREEN) LED blinking (5Hz) Indoor fan malfunction (inoperative within 15 sec - less than 600rpm) Samsung Electronics...
  • Page 27: Fault Diagnosis By Symptom

    DC voltage of DISPLAY PCB normal? Does operation start when run/stop button on the remote control unit pushed? DC voltage of receiver-module output normal? (squarewave) Refer to page 5-4~5-6 Ass'y Display PCB replace Refer to remote control unit fault diagnosis Samsung Electronics...
  • Page 28 (Squarewave) Fan motor or fan motor capacitor is faulty. Voltage at pin #13 of IC03(KA2657) change? (Squarewave) Q401(KSC945-Y) is faulty. Voltage at pin #24 of MICOM IC01 change? (Squarewave) Micom (IC01) is faulty. IC03(KA2657) is faulty. SS70(G3MB-202PL)is faulty. Samsung Electronics...
  • Page 29 Driver IC03 (KA2657) is faulty. Voltage at pin #15 of IC03 (KA2657)? (Low level) Ia AC 198~264V applied between the Terminal Tap(CN71) Relay (RY72) is faulty. and RY72 Terminal NO ④? 60Hz Compressor or compressor capacitor is faulty. Samsung Electronics...
  • Page 30 Does operation start when swing button of the remote Normal control unit pushed? Voltage at pin #33-#36 of micom (IC01) change?(Squarewave) Micom (IC01) is faulty. Volatge at pin #10-#13 of IC02 Driver IC02 (KA2657) is faulty. (KA2657change?(Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...
  • Page 31 Voltage at PIN #30 of Remocon Micom change? Voltage at collecter of Q601 or Q602 change? Q601(KSH29, C4375) or Q602(2SC1623) is faulty. LE61, LE62 (CL-1L5E) is faulty. Voltage at pin #26 of micom (IC01) change? Receiver module (LTM-9431) is faulty. Micom (IC01) is faulty. Samsung Electronics...
  • Page 32: Pcb Inspection

    The parts should be replaced in the following procedure. Check for any faulty part. ↓ Detach the faulty part. ↓ Replace it with a new part. ↓ Check the operation of the new part. ↓ The repair is completed. Samsung Electronics...
  • Page 33 1. Indoor unit fan motor is faulty. RMC switch pushed. above 190V~ 1. [FAN] mode 2. Fan speed [HI] 2. Indoor unit fan motor does not operate. 2. Poor connection of indoor fan motor 3. Continuous operation and connector of RPM sensing (CN42) Samsung Electronics...
  • Page 34: Fault Diagnosis Of Major Parts

    Black, White 160±10Ϊ Black, Red 151±10Ϊ Abnormal ∞, ОΪ…open or short Stepping Motor Measure resistance between red wire and each terminal. (UP/DOWN swing motor) Normal Approx. 380Ϊ at ambient temperature (20℃~30℃) Abnormal ∞, ОΪ…open or short Samsung Electronics...
  • Page 35: Exploded Views And Parts List

    6. Exploded Views and Parts List 6-1 Indoor unit Samsung Electronics...
  • Page 36 Ass'y-evaporator ASH-0905ER P9003-0222-14 Ass'y-power cord UCP2 P2022-0042-00 Band-motor P6434-0275-00 Connector wire outdoor AWG18 P9409-0509-00 Ass'y-main PCB ASH-1206ER P9409-0510-00 Ass'y-main PCB ASH-0906ER P3312-0228-01 Cover-PCB P3313-0225-00 Terminal cover P9403-0445-00 Ass'y-display PCB ASH-1205ER P4084-0029-00 Knob-switch P6822-0118-00 Motor-fan in AMPAS-040WTVA P1612-0032-00 Ass'y-fan cross AS-966...
  • Page 37 6-2 Outdoor Unit 19-1 19-2 19-3 19-4 19-5 Samsung Electronics...
  • Page 38 P3393-0030-00 Isolator-grommet EPDM P3403-0011-00 Gasket EDPM P9002-2293-00 Ass'y-base comp Ass'y P9002-2293-01 Ass'y-base comp Ass'y P0802-1260-00 Ass'y-check v/v ASH-1206ER P0802-1260-01 ASH-0906ER P0903-0046-00 Valve-check 30MG/CM2G P0903-0056-00 Valve-Packed(1/4) P16.35 P0802-1254-00 Ass'y-4 way v/v ASH-1206ER P0802-1254-01 ASH-0906ER P0903-0047-00 Valve-4 way SAGINOMIA P5443-206-220 Valve-Packed(1/2• ›)
  • Page 39 6-3-1 Remote Control °·Parts List Q'TY Specification CODE NO Description Remark 9000Btu 12000Btu P9002-2092-03 Ass'y-remocon ASH-1206ER P2030-0134-00 Case-remocon(LW) P3394-0042-00 Rubber-button(B) B4155-0067 HLC8707 B4155-0076 AT-025ZAR P3392-0041-02 Rubber-button(A) P2031-0135-00 Case remocon(UPP) P4042-0011-00 Door-remocon P4073-0011-01 Window-remocon P0873-0031-00 Filter-remocon P4014-0085-02 Inlay-remocon P3322-0096-00 Holder remocon Samsung Electronics...
  • Page 40 THERMISTOR-ASS'Y 103AT 240/240 77203-0109-00 TRANS-POWER EF33 X 41 A1102-0413 C-FILM 1.5ß fi/400VAC B3068-0041 POWER-RELAY G4A-1A 250V A3065-0147 FUSE 250V 3.15A A6010-1530 CONNECTOR-WAFER SMAW 250-12 P9403-0445-00 ASS'Y-DISPLAY PCB ASH-1205ER A3006-0087 SWITCH-SLIDE 2C2P B1294-0040 MODULE-REMOCON LTM-9431-38 P6219-0006-00 SENSOR-HUMIDITY C3-M3 1.4VAC Samsung Electronics...
  • Page 41 Memo Samsung Electronics...
  • Page 42: Block Diagrams

    ON, OFF TIMER SELECT OUTDOOR FAN MOTOR DRIVE 4-WAY VALVE ∙4-WAY VALVE TEMPERATURE SELECT DRIVE STEPPING MOTOR ∙STEPPING MOTOR DRIVE BUZZER SLEEP SELECT ∙BUZZER DRIVE TIME SETTING DC 12V DC 5V VOLTAGE REGULATOR AC INPUT POWER TRANSFORMER 220~240V/50Hz Samsung Electronics...
  • Page 43 STD Pressure Piping Temp. UseTemp. Condition (°C) Operating Condition (kg/cm Indoor Outdoor 3-WAY V/V Standard 4.5~5.5 10~12 10~12 Cooling Max over load 16~18 14~18 Low temp Standard 18~20 32~36 60~70 Heating Max over load 36~40 65~75 Deice 28~32 40~45 Samsung Electronics...
  • Page 44 Memo Samsung Electronics...
  • Page 45: Pcb Diagrams

    8. PCB Diagrams 8-1 Main PCB Samsung Electronics...
  • Page 46 CONNECTOR-TERMINAL GP881191-2 CN72 A6010-1352 CONNECTOR-WAFER YW396-03AV(BLK) CN73 A6010-0469 CONNECTOR-WAFER YW-396-05AV(WHT) CN91 A6010-1530 CONNECTOR-WAFER SMAW 250-12(WHT) CN42 A6010-1390 CONNECTOR-WAFER SMW250-03BLU CN41 A6010-1392 CONNECTOR-WAFER SMW250-04WHT CN61 A6010-1402 CONNECTOR-WAFER SMW250-06WHT TN71 77203-0109-00 TRANS-POWER EF33.0 x 41.0 D101,D102,D701,D7 A4104-0053 DIODE-RECT IN4002 02,D703,D704 Samsung Electronics...
  • Page 47 LED LAMP LTL 4294-011(ORG) P6219-0006-00 HUMIDITY-SENSOR C3-M3 MODULE B1294-0040 MODULE REMOCON LTM-9431-38 A6010-1530 CONNECTOR-WAFER SMAW250-12 P6434-0275-00 C/W DISPLAY ASH-1205ER A3006-0087 SWITCH-SLIDE KSA 2241 A6040-0011 WIRE SO COPPER PI 0.6 SN T 52MM P2203-0049-00 BASE LED-V P6029-0275-00 PCB-DISPLAY ASH-1205ER HOT-MELT Samsung Electronics...
  • Page 48 MCH315A 101K C507 CHIP CAPACITOR MCH315A 150K C501 C-ELECTRONIC SE 1㎌/50V TH01 ROOM THERMISTOR 103AT-2 Q601 CHIP-TR KSH-29,KSH-29C,C4375 Q602 CHIP-TR C1623-Y X502 CRYSTAL 455KHz X501 CRYSTAL 32.768KHz LE01 IR-LED CL-1L5EU LE02 IR-LED CL-1L5EU MICOM B4002-0639 MICOM SMC621A B4155-0076 AT-025ZAR Samsung Electronics...
  • Page 49 Memo Samsung Electronics...
  • Page 50: Wiring Diagrams

    9. Wiring Diagrams 9-1 Indoor Unit 9-2 Outdoor Unit CAPACITOR ASH-0906ER:1.5/30μ F×370VAC ASH-1206ER:1.5/30μ F×450VAC Samsung Electronics...
  • Page 51 Memo Samsung Electronics...
  • Page 52: Schematic Diagrams

    10. Schematic Diagrams 10-1 Indoor Unit 10-1 Samsung Electronics...
  • Page 53 10-2 Remote Control 10-2 Samsung Electronics...
  • Page 54 ELECTRONICS Samsung Electronics Co., Ltd. DEC. 1995. ⓒ Printed in Korea. Code No. P4739-0520-00(2)

This manual is also suitable for:

Ash-1206er

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