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Samsung ASA24C5 Service Manual

Room air conditioner
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SERVICE
AIR CONDITIONER

ROOM AIR CONDITIONER

INDOOR
ASA24C5(6)ME
SC24AC5(6)
ASA18C9(0)ME
SC18AC9(0)
Manual
Installation
OUTDOOR
USA24C5(6)ME
SC24AC5(6)X
USA18C9(0)ME
SC18AC9(0)X
CONTENTS

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Summary of Contents for Samsung ASA24C5

  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER INDOOR OUTDOOR ASA24C5(6)ME USA24C5(6)ME SC24AC5(6) SC24AC5(6)X ASA18C9(0)ME USA18C9(0)ME SC18AC9(0) SC18AC9(0)X Manual SERVICE 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.

  • Page 2: Precautions

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

  • Page 4: Product Specifications

    2. Product Specifications 2-1 Table Model ASA24C5(6)ME / SC24AC5(6) ASA18C9(0)ME / SC18AC9(0) Item Cooling only Cooling only Power Sourse 220-240V, 50Hz 220-240V, 50Hz Capacity 6.90(23,500) 5.30(18,000) Perfor- Air circulation (High) /min 14.0 13.0 mance Moisture removal (High) Liters/h 198 ~ 264...

  • Page 5: Major Component Specifications

    2-2 Major Component specifications Indoor unit Model ASA24C5(6)ME / SC24AC5(6) ASA18C9(0)ME / SC18AC9(0) Part No. PD-SH30ZC-01 PE-S1452R-00 Controls Microprocessor Microprocessor Control circuit fuse 250V, 3.15A 250V, 3.15A Type Cross-Flow Cross-Flow Dia. and length ø95/L = 842 ø95/L = 842 Fan motor model...
  • Page 6 2-3 Dimensions 2-3-1 Indoor Unit (Front view) (Remote control) 1080 (Rear view) Installation plate The feature is subject to be varied as a model. Samsung Electronics...
  • Page 7 Product Specifications 2-3-2 Outdoor Unit 24K BTU (Front view) (Rear view) 18K BTU (Front view) (Rear view) Samsung Electronics...

  • Page 8: Pressure Graph

    2-4 Pressure Graph 24K BTU 30.6/22.5 27/19 21.5/14.6 Outdoor drybulb temp [deg C] 18 BTU 30.6/22.5 27/19 21.5/14.6 Outdoor drybulb temp [deg C] Samsung Electronics...
  • Page 9 MEMO Samsung Electronics...

  • Page 10: Operating Instructions And

    To select the 5 way function with the remote control, press the 5 way button one or more times until the desired mode is selected. Each time you press the 5 way button Each 5 way indicator on the indoor unit comes on in or der. Samsung Electronics...
  • Page 11 Each mode has Auto, Cool and SLEEP or FAN mode that is changed with AUTO operation designed in advance. mode automatically. 5. SLEEP MODE : Sleep mode is available only in COOL or mode. The operation will stop after 6 hours. Samsung Electronics...
  • Page 12 : LED off blinking 11. BUZZER SOUND : Whenever the ON/OFF button is pressed or whenever change occurs to the condition which is set up or select, the compulsory operation mode, buzzer is sounded "beep". Samsung Electronics...
  • Page 13 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 14: Installation Diagram Of Indoor Unit And Outdoor Unit

    “H”metere s maximum Remote control Remote control holder Model ** 18 ** ** 24 ** Piping (Liquid) 1/4" Putty Clamper tube 18K BTU Piping(Gas) 1/2” 24K BTU Piping(Gas) 5/8” Installation plate Installation tube Screw Vinyl tape Drain hose Samsung Electronics...
  • Page 15 Result : All inert gas escapes from the indoor unit. • To prevent dirt or foreign objects from getting into the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping. Samsung Electronics...
  • Page 16 9. For further details on how to plug the other end of the assembly cable into the outdoor unit, refer to page 3-8. < > < > Indoor Indoor N1 L1 1 N1 L1 1 unit unit Outdoor unit N1 L1 1 N1 L1 1 Outdoor unit Circuit Breaker Circuit Breaker (Main Power) (Main Power) Samsung Electronics...
  • Page 17 3. Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight. 4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above. Shield Drain hose Extension drain hose Samsung Electronics...
  • Page 18 WIRING CONNECTION Indoor unit connector wire should be connected to both indoor unit connector and outdoor unit terminal N1 L1 1 Indoor unit board as shown in the figure below. Outdoor unit N1 L1 1 Circuit Breaker (Main Power) Samsung Electronics...
  • Page 19 Caution : Burrs not removed may result in leakage of gas. Pipe Reamer Oblique Raughness Burr 3) Insert a flare nut into the pipe and modify flare. Outer diameter A(mm) ø6.35mm ø9.52mm ø12.7mm ø15.8mm * Unproper flaring Inclined Surface Cracked Uneven damaged thickness 3-10 Samsung Electronics...
  • Page 20 And mount the service port cap to 3-way valve. (liquid) (gas) 7. Check for gas leakage. - At this time, especially check for gas leakage from the Stem cap Valve stem 3-way valve’s stem nuts, and from the service port cap. Samsung Electronics 3-11...
  • Page 21 R410A 7. Stop operation of the air conditioner. 8. Close the 3-way valve, disconnect the pressure gauge, and open the 3-way valve again. 9. Close the cap of each valve. 3-12 Samsung Electronics...
  • Page 22 (R410A) for every 1m. MODEL “A” 3-2-2(j) Flare nut fixing torque Torque (kg-cm) Outter diameter Fixing Torque Final Torque ø 6.35 mm (Liquid Side) ø 9.52 mm (Gas Side) ø 12.7 mm (Gas Side) ø 15.8 mm (Gas Side) Samsung Electronics 3-13...
  • Page 23 At this time, cover the pipe of the indoor 8. Remove the mounting plate for the indoor unit and the other pipe using a cap or vinyl unit and move it to a new location. plug to avoid foreign material entering. 3-14 Samsung Electronics...

  • Page 24: Disassembly And Reassembly

    7) Pull the upper left right and center of dis- charge softly for the outside cover to be pulled out. 8) Pull softly the lower part of discharge and push it up. Caution; Assemble the front panel and fix the hooks of left, right and center. Samsung Electronics...
  • Page 25 4) Separate the bush body at the upper side and holder at the rearside. 5) Loosen the two fixing screws of left side. 6) Lifting the heat exchanger up a little to push the up side for separation from the indoor unit. Samsung Electronics Samsung Electronics...
  • Page 26 2) Loosen the fixing three screws and separate the motor holder. 3) Loosen the fixing screw of fan motor. (By use of M3 wrench) 4) Separate the fan motor from the fan. 5) Separate the fan from the left holder bearing. Samsung Electronics...

  • Page 27: Outdoor Unit

    Fan Motor 1) Do Procedure 1 above. & 2) Remove the nut flange. Propeller Fan (Turn to the right to remove as it is a left turned screw) 3) Disassemble the propeller fan. Samsung Electronics...

  • Page 28: Troubleshooting

    Indoor unit heat exchanger temperature sensor Error (open or short) NATURE LED blinking (1Hz) Indoor fan malfunctioning (for spead is Below 450rpm) STD, NATURE and TIMER LED blinking(1Hz) EEPROM Error All LED blinking(1Hz) Option Error(option wasn’t set up or option data error) Samsung Electronics...

  • Page 29: Fault Diagnosis By Symptom

    Is voltage at #10 terminal of the micom normal? Refer to replace PCB Replace ICO2 10ms module Is voltage output terminal of D101~D105(IN4007) normal? Are voltage at #18 and #19 of the micom normal? Replace resonator (X501) 100ns Replace IN4007 Is operation normal? Replace micom Samsung Electronics...
  • Page 30 Test rod location Normal voltage PCB CN73 Condition Fan operate = AC 180V pin3, pin5 MF-C is out of order Replace MFC Fan motor Fan motor should be replaced. is out of order. Samsung Electronics...

  • Page 31: When The Outdoor Unit Does Not Operate. (Initial Diagnosis)

    Power relay should be Is the rating Voltage ±10% range applied relay between CN78 out of order replaced. ! and #. Outdoor unit is out of order. Is the room sensor normal register? (25°C 10KΩ) 10˚C 20˚C 30˚C 17.96kΩ 12.09kΩ 8.3kΩ Samsung Electronics...
  • Page 32 Micom (IC04) is faulty. Voltage at pin #1-#4 of micom (ICO4) change?(Squarewave) Volatge at pin #10, #11 of IC06, #15, #16 of IC05 (KID65003) Driver IC05 (KID65003) or IC06 is faulty. change?(Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...

  • Page 33: If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)

    Voltage at PIN #30 of Remocon Micom change? Voltage at collecter of Q601 or Q602 change? Q601(C4375Y) or Q602(C1623Y) is faulty. IR LED(CL-1L5EU) is faulty. Voltage at pin #26 of micom (IC04) change (INDOOR UNIT)? Receiver module is faulty. Micom (IC04) is faulty. Samsung Electronics...

  • Page 34: Replace Pcb Module

    5-3 Replace PCB module 5-3-1 Replace PCB module Remove power cord Replace the PCB module Check the connection and plug in Replace another PCB module Does all display lamp blink or STD lamp blink? Refer to set up the Model option(5-3-2) Samsung Electronics...
  • Page 35 $ When pressing the button appear on the display, select one of them. % When pressing the button appear on the display, select one of them. ^ When pressing the button appear on the display, select one of them. Samsung Electronics...
  • Page 36 If all lamps of indoor unit are flickering, Plug out and plug in again and pressing ON/OFF key to retry. If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is set up for it’s model. Samsung Electronics...
  • Page 37 Troubleshooting OPTION ITEMS REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL ASA24C5ME SC24AC5 ASA24C6ME SC24AC6 ASA18C9ME SC18AC9 ASA18C0ME SC18AC0 5-10 Samsung Electronics...
  • Page 38 5-4-2 Procedure 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 5-11...
  • Page 39 Set the power on. : relay off 12[v] 2. Voltage at terminal block • RY71 is faulty ((N1)-1) rating voltage • RY72 or RY74 is faulty ((N1)-2 or 4) rating voltage • RY73 is faulty ((N1)-3) rating voltage 5-12 Samsung Electronics...
  • Page 40 MEMO Samsung Electronics 5-13...

  • Page 41: Exploded Views And Parts List

    6. Exploded Views and Parts List 6-1 Indoor Unit 17R or 16R You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.kr Samsung Electronics Samsung Electronics...
  • Page 42 ASSY PD-SH30ZC-01 ASSY MAIN PCB ASSY PE-S1452R-00 ASSY MAIN PCB ASSY DB32-00027B ASSY THERMISTER ASSY DB61-10163A CASE-CONTROL ABS(V0) DB94-00124U ASSY BACK BODY ASSY DB94-00176A ASSY BACK BODY ASSY DB90-00434A ASSY HOLDER PIPE DB70-10663A PLATE HANGER SGCC-M Samsung Electronics Samsung Electronics...
  • Page 43 6-2 Outdoor Unit 6-2-1 18K BTU 12-4 15-1 12-5 15-2 12-3 15-3 15-5 12-2 12-1 13-1 18-1 18-2 18-5 18-3 18-4 Samsung Electronics...
  • Page 44 2.5µF / 450VAC DB72-00690A CLOTH SOUND PVC+FELT DB62-01067A TUBE DISCHARGE C1220T-O 18-1 DB39-00121A CONNECT POWER 3G, 2.5mm OPTION 18-2 DB39-00171A CONNECT WIRE 7G, 1.00mm OPTION 18-3 DB60-30010A NUT FLANGE 1/4” C3771BD 18-4 DB60-30010C NUT FLANGE 1/2” C3771BD 18-5 DB73-20134A RUBBER-LEG Samsung Electronics...
  • Page 45 Exploded Views and Parts List 6-2-2 24K BTU 12-4 12-5 12-3 15-6 15-4 12-2 15-5 13-1 12-1 15-1 15-3 15-2 18-1 18-2 18-5 18-4 18-3 Samsung Electronics...
  • Page 46 15-6 2301-001379 MOTOR CAPACITOR 4µF / 450VAC DB72-00690A SPONGE-COMP SIDE PVC+FELT 17-1 DB39-00121A CONNECTOR POWER 3G, 2.5mm 17-2 DB39-00171A CONNECT WIRE 7G, 1.0mm 17-3 DB60-30010A NUT FLANGE 1/4” C3771BD 17-4 DB60-30010D NUT FLANGE 5/8” C3771BD 17-5 DB60-30010D RUBBER-LEG Samsung Electronics...
  • Page 47 6-3 Remote Control & PCB Box 6-3-1 Remote Control : DB93-00251K Parts List Description Specification Q’TY Remark ARC-406 ASS’Y PCB REMOCON BATTERY COVER Samsung Electronics...
  • Page 48 6-3-2 PCB Box Parts List CODE NO Description Specification Remark Q’TY PD-SH30ZC-01 ASS'Y MAIN PCB ASS’Y SC24AC5(6) PE-S1452R-00 ASS'Y MAIN PCB ASS’Y SC18AC9(0) DB32-00027B ASS'Y THERMISTOR 103AT 240/240 DB93-00926A ASS’Y PCB DISPLAY ASS’Y DB39-00172A CONNECTOR WIRE DISPLAY AWG#26 Samsung Electronics...
  • Page 49 MEMO Samsung Electronics...

  • Page 50: Block Diagrams

    7. Block Diagrams 7-1 Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT Capillary tube 2-way valve Liquid side Heat Heat exchanger exchanger (Evaporator) (Condenser) Gas side 3-way valve Cooling Compressor Gas leak check point Samsung Electronics...

  • Page 51: Pcb Diagrams

    8. PCB Diagrams 8-1 Main PCB 8-1-1 Indoor Unit [PD-SH30ZC-00/01 : SC24AC5(6)] Samsung Electronics...
  • Page 52 1WALL,3P/5P,1R,3.96mm,S CN71 CONNECTOR-HEADER 1WALL,3P/5P,1R,3.96mm,S CN73 CONNECTOR-HEADER 1WALL,3P/5P,1R,3.96mm,S CN91 CONNECTOR-HEADER BOX,10P,1R,2.5mm,STRAIG CN43 CONNECTOR-HEADER BOX,3P,1R,2.5mm,STRAIGH CN41 CONNECTOR-HEADER BOX,4P,1R,2.5mm,STRAIGH CN61 CONNECTOR-HEADER BOX,6P,1R,2.5mm,STRAIGH IC07 IC-MASK ROM 93LC56B,8BIT,-,DIP,8P,-,-,- IC03 IC-RESET KA7533,DIP,-,-,-,-,- IC06 IC-DRIVE KID65003AP,DIP,16P,STICK,TR-AR L101 COIL CHOKE 5.0mH,-,8.0*11.0,-,-,PE-M10 WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WI PCB-MAIN PD-SH30ZC-00,FR-1,-,-,T1.6,W197 Samsung Electronics...
  • Page 53 8-2 Main PCB 8-2-1 Outdoor Unit [PE-S1452R-00 : SC18AC9(0)] Samsung Electronics...
  • Page 54 C101, 110 C-ELEC SD 6.8uF 450V L101 COIL 5mH 50mA VA71, 72 VARISTOR INR14D 471K C702 C-FILM 104M 275VX2 C701 C-FILM 224M 275VX2 TB71 CONNECTOR-WIRE 250TAP 1PIN R206, 501, 508, 601, 604, 606, 902 R-CARBON RD 1/8 TP 103-J Samsung Electronics...
  • Page 55 Specification Q’TY PCB-DISPLAY FR-1 T1.6 MODULE REMCOON KSM-713TH5 TACT SWITCH FRP-4021H6 C-CERAMIC KPT-1105A C-CERAMIC CA 0A 50V 102Z DIODE SWITCHING CA 0A 50V 104Z R-CARBON 1N4148 JUMP-WIRE 10mm CONNECTOR WAFER SMAW200-5P(WHT) CONNECTOR WAFER SMAW200-10P(WHT) ASS’Y CENTER DISPLALY: DB93-00860A Samsung Electronics...

  • Page 56: Wiring Diagrams

    9. Wiring Diagrams 9-1 Indoor Unit SC24AC5(6) / ASA24C5(6)ME Samsung Electronics...
  • Page 57 Wiring Diagrams SC18AC9(0) / ASA18C9(0)ME Samsung Electronics...
  • Page 58 9-2 Outdoor Unit USA24C5(6)ME, SC24AC5(6)X MARK NAME MARK NAME POWER RELAY TB1, 2 TERMINAL BLOK CAPACITOR FAN MOTOR FUSE(2A, 250V~) SPARK KILLER USA18C9(0)ME, SC18AC9(0)X Samsung Electronics...

  • Page 59: Schematic Diagrams

    10. Schematic Diagrams 10-1 Indoor Unit SC24AC5(6) / ASA24C5(6)ME 10-1 Samsung Electronics Samsung Electronics 10-2...
  • Page 60 Schematic Diagrams Schematic Diagrams SC18AC9(0) / ASA18C9(0)ME 10-3 Samsung Electronics Samsung Electronics 10-4...
  • Page 61 Schematic Diagrams Schematic Diagrams SC18AC9(0) 10-5 Samsung Electronics Samsung Electronics 10-6...
  • Page 62 MEMO 10-7 Samsung Electronics...
  • Page 63 Itself Solution Integrated technology supporting electronic library http://itself.sec.samsung.co.kr Copyright © 2002 By Samsung Electronics Co., Ltd. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable from without prior written permission of Samsung Electronics Co., Ltd.
  • Page 64 ELECTRONICS © Samsung Electronics Co., Ltd. Apr. 2002. Printed in Korea. Code No. DB98-05464A(1)

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