Samsung SH24TAB5 Service Manual

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SERVICE

AIR CONDITIONER

ROOM AIR CONDITIONER

INDOOR

AST24A(B)5(6)RE/B

AST18A(B)9(0)RE/B

AS18A(B)9(0)RE/D

SC24TA(B)5

SC18ZA(B)9

Manual

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

10. Schematic Diagrams

OUTDOOR

UST24A(B)5(6)RE/B

UST18A(B)9(0)RE/B

US18A(B)9(0)RE/D

SC24TA(B)5X

SC18ZA(B)9X

CONTENTS

Table of Contents

Summary of Contents for Samsung SH24TAB5

Page 1: Table Of Contents
ROOM AIR CONDITIONER INDOOR OUTDOOR AST24A(B)5(6)RE/B UST24A(B)5(6)RE/B AST18A(B)9(0)RE/B UST18A(B)9(0)RE/B AS18A(B)9(0)RE/D US18A(B)9(0)RE/D SC24TA(B)5 SC24TA(B)5X SC18ZA(B)9 SC18ZA(B)9X 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.
Page 3: 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 4 M EM O Samsung Electronics...
Page 5: Product Specifications
1023 1151 1023 1151 1151 1151 1151 Weight Depth Weight Shipping Remarks : Rating Conditions are : Indoor air temperature ISO(50Hz) : 27ûC DB/19.0ûC WB, ISO(60Hz) : 27.0ûC DB/19.5ûC WB Outdoor air temperature ISO : 35.0ûC DB/24.0ûC WB Samsung Electronics...
Page 6 AL-FIN / Copper tube AL-FIN / Copper tube Heat Rows x Steps 2 x 24 2 x 24 2 x 24 2 x 24 2 x 24 2 x 24 Exch. Fin pitch Face area 0.5376 0.5376 0.504 0.504 0.504 0.504 Samsung Electronics...
Page 7 2-3 Dimensions 2-3-1 Indoor Unit (Remote control) (Front view) 1080 (Rear view) 2-3-2 Outdoor Unit (Front view) (Rear view) Samsung Electronics...
Page 8 Product Specifications 2-3-3 Outdoor unit (18K BTU) (Front view) (Rear view) Samsung Electronics...
Page 9 2-4 Pressure Graph 24K BTU Outdoor Inlet air D.B.temp.(ûC) 18K BTU Outdoor Inlet air D.B.temp.(ûC) Samsung Electronics...
Page 10 M EM O Samsung Electronics...
Page 11: 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 12 When this button is pressed again, or when the operating time is 30 minutes, turbo operation mode is canceled and returned to the previous mode. *But, if you press the TURBO button in DRY or FAN mode that is changed with AUTO mode automatically. Samsung Electronics...
Page 13 If the one more time press the button, blades loca- tion is stop. 9. 24-Hour ON/OFF Real Setting Timer. : The air conditioner is turned ON at a specified time using Samsung Electronics...
Page 14: Installation
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 15: 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 16 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...
Page 17 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 18 Fan Motor & 1) Do Procedure 1 above. Propeller Fan 2) Remove the nut flange. (Turn to the right to remove as it is a left turned screw) 3) Disassemble the propeller fan. Samsung Electronics...
Page 19: 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 20: Fault Diagnosis By Symptom
Is voltage at #52 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 #48 and #49 of the micom normal? Replace resonator (X501) 100ns Replace IN4007 Is operation normal? Replace micom Samsung Electronics...
Page 21 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 22 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 17.96k Ω 12.09k Ω 8.3k Ω Samsung Electronics...
Page 23 Micom (IC04) is faulty. Voltage at pin #1-#4 of micom (ICO4) change?(Squarewave) Volatge at pin #16, #15 of IC06, #10, #11 of IC05 (KID65003) Driver IC05 (KID65003) or IC06 is faulty. change?(Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...
Page 24 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 25 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 26 $ 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 27 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 itÕs model. Samsung Electronics...
Page 28 OPTION ITEMS REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL AQT24A(B)5RE SH24TA(B)5 AQT24A(B)6RE AQT24A(B)6RB AST24A(B)5RE SC24AT(B)5 AST24A(B)6RE AST24A(B)6RB AQT18A(B)9RE AQT18A(B)0RE AQT18A(B)0RB AQ18A(B)9RE SH18ZA(B)9 AQ18A(B)0RE AST18A(B)9RE AST18A(B)0RE AST18A(B)0RB AS18A(B)9RE SC18ZA(B)9 AS18A(B)0RE AS18A(B)9RD AS18A(B)0RD 5-10 Samsung Electronics...
Page 29 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. 5-11 Samsung Electronics...
Page 30 1. Indoor unit fan motor is faulty. RMC switch pushed. above 180V~ 1. [FAN] mode 2. Fan speed [Hi] 2. Indoor unit fan motor does not operate. 2. Poor connection of indoor fan motor 3. Continuously operation and connector of RPM sensing (CN43) 5-12 Samsung Electronics...
Page 31 M EM O 5-13 Samsung Electronics...
Page 32: Exploded Views And Parts List
6. Exploded Views and Parts List 6-1 Indoor Unit 18L or 18R 17L or 17R 10-1 10-3 10-2 Samsung Electronics...
Page 33 PD-TQ24A1R-01 ASSÕY MAIN PCB PD-T24A1R-01 PE-S1450R-01 ASSÕY MAIN PCB PE-S1470-01 DB32-00027B ASSÕY TERMISTOR 103AT DB61-10163A CASE CONTROL ABS(VO) DB94-20037H ASSÕY BACK BODY ASSÕY DB94-00107A ASSÕY BACK BODY ASSÕY DB90-00163A HOLDER PIPE DB90-00434A HOLDER PIPE DB70-10663A PLATE HANGER SGCC-M Samsung Electronics...
Page 34 6-2 Outdoor Unit 6-2-1 18K BTU 12-4 12-3 15-2 12-2 15-1 15-3 12-1 15-5 13-1 15-6 15-4 18-1 18-2 18-5 18-3 18-4 Samsung Electronics...
Page 35 ASSÕY-TUBE DISCHARGE ASSÕY DB71-30017A TUBE DISCHARGE 18-1 DB39-00121A CONNECTOR POWER 3G,2.5mm OPTION 18-2 DB39-00122E CONNECTOR WIRE 6G,1.0mm OPTION DB39-00473A CONNECTOR WIRE 4G,AWG16 18-3 DB60-30010A NUT FLANGE 1/4Ó C3771BD 18-4 DB60-30010C NUT FLANGE 1/2Ó C3771BD 18-5 DB73-20134A RUBBER LEG Samsung Electronics...
Page 36 Exploded Views and Parts List 6-2-2 24K BTU 15-6 12-2 15-4 12-1 15-5 13-1 15-1 15-3 15-2 18-1 18-2 18-5 18-4 18-3 Samsung Electronics...
Page 37 DB72-50622A CLOTH SOUND DB72-50614A CLOTH SOUND UP 18-1 DB39-00121A CONNECTOR POWER 3G, 2.5mm OPTION 18-2 DB39-00122E CONNECTOR WIRE 6G, 1.0mm OPTION 18-3 DB60-30010A NUT FLANGE 1/4Ó C3771BD 18-4 DB60-30010D NUT FLANGE 5/8Ó C3771BD 18-5 DB73-20134A RUBBER-LEG DB96-10728A TUBE-DISCHARGE Samsung Electronics...
Page 38 6-3 Remote Control & PCB Box 6-3-1 Remote Control : DB93-00251K Parts List Description Specification QÕTY Remark ARC-406 ASSÕY PCB REMOCON BATTERY COVER Samsung Electronics...
Page 39 CODE NO Description Specification QÕTY Remark PD-TQ24A1R-01 ASS'Y MAIN PCB ASSÕY The others PE-S1450R-01 ASS'Y MAIN PCB ASSÕY AS18A(B)9(0)RE, SC18A(B)9 DB32-00027B ASSÕY THERMISTOR 103AT 240/240 DB93-00311C ASSÕY PCB DISPLAY ASSÕY DB39-00172A CONNECTOR WIRE DISPLAY AWG#26 DB63-00115A COVER-DISPLAY UP ABS(BLK) Samsung Electronics...
Page 40 M EM O Samsung Electronics...
Page 41: 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 42: Pcb Diagrams
8. PCB Diagrams 8-1 Main PCB(PD-TQ24A1R-01): AST24A(B)5(6)RE/B, SC24TA(B)5, AST18A(B)9(0)RE/B Samsung Electronics...
Page 43 RD 1/8 TP 472-J C101,110 C-ELEC SD 6.8uF 450V L101 COIL 5mH 50mA VA71,72 VARISTOR INR14D 561K C702 C-FILM 104M 275VX2 C701 C-FILM 224M 275VX2 R206,501,508,601,604,606,902 R-CARBON RD 1/8 TP 103-J CN71 CONNECTOR WAFER YW396-05AV RED CN78 CONNECTOR WAFER YW396-05AV BLU Samsung Electronics...
Page 44 8-2 Main PCB(PE-S1450R-01): AS18A(B)9(0)RE/D, SC18A(B)9 Samsung Electronics...
Page 45 C101, 110 C-ELEC SD 6.8uF 450V L101 COIL 5mH 50mA VA71, 72 VARISTOR INR14D 561K 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 46 PCB-DISPLAY FR-1 T1.6 LED-LAMP SY5511(YEL) LED-LAMP S05511(ORG) MODULE REMCOON PNA4612MOOHB C-CERAMIC CA 0A 50V 102Z C-CERAMIC CA 0A 50V 104Z R-CARBON RD 1/4 TP 471-J DIODE SWITCHING 1N4148 JUMP-WIRE 10mm CONNECTOR WAFER SMAW200-10P COVER DISPLAY UP ABS BLK Samsung Electronics...
Page 47: Wiring Diagrams
9. Wiring Diagrams 9-1 Indoor Unit AST24A(B)5(6)RE/B, AST18A(B)9(0)RE/B, SC24TA(B)5 Samsung Electronics...
Page 48 Wiring Diagram AS18A(B)9(0)RE/D, SC18A9B)9 Samsung Electronics...
Page 49 9-2 Outdoor Unit UST24A(B)5(6)RE/B, UST18A(B)9(0)RE/B, SC24TA(B)5X MARK NAME MARK NAME MAGNETIC CONTACTOR TB1, 2 TERMINAL BLOK CAPACITOR FAN MOTOR FUSE(2A, 250V~) SPARK KILLER US18A(B)9(0)RE, SC18ZA(B)9X Samsung Electronics...
Page 50 Itself Solution Integrated technology supporting electronic library http://itself.sec.samsung.co.kr Copyright © 2001 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 51: Schematic Diagrams
10. Schematic Diagrams 10-1 Indoor Unit 10-1 Samsung Electronics...
Page 52 10-2 Indoor Unit Model 10-2 Samsung Electronics...

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