Page 1: Table Of Contents
ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AD24A1(B1)E12 UD24A1(B1)E2 AD18A1(B1)E09 UD18A1(B1)E2 AD19A1(B1)E07 UD19A1(B1)E2 AD19A1(B1)E12 Manual SERVICE AIR CONDITIONER CONTENTS 1. Pre c a u t i o n s 2. Product Specifications 3. Operating Instructions and I n s t a l l a t i o n 4.
Page 3: Precaution
. 1 0 . Be sure to clean the unit and its surro u n d i n g Fig. 1-3 No Kids Nearby! a re a . Fig. 1-4 Clean the Unit Samsung Electronics...
Page 4 M E M O Samsung Electronics...
Page 5 7) Pull the upper left and right of discharge 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 and right. Samsung Electronics...
Page 6 2) Take all the connector of PCB upper side out. (Inclusion Power cord) 3) Separate the outdoor unit connection wire from the terminal block. 4) If pulling the Main PCB up. it will be taken out. (Separate the TRANS hook. it before). Samsung Electronics...
Page 7 2) Loosen the fixing two screws and separate the motor holder. 3) Loosen the fixing screw of motor fan. (By use of M3 wrench) Separate the motor from the fan. Separate the fan motor the left holder bearing. Samsung Electronics...
Page 8: Outdoor Unit
<UD24A1(B1)E2> 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. <UD18A1(B1)E2/UD19A1(B1)E2> Samsung Electronics...
Page 9 Without regard to ON/OFF condition in remote controller, use this button to set current time. TIME Adjust the current time using button. (Data can be transmitted after setting up the time) Samsung Electronics...
Page 10 De-ice end by sensing of the pro c e s s i n g 7. FAN SPEED : Manual (3 step), Auto (4 step) time by de-ice condition. Fan speed automatically varies depending on both the diff e rence between setting and the room temperature . Samsung Electronics...
Page 11 The LCD also displays the time re m a i n i n g . select, the compulsory operation mode, buzzer is sounded "beep" Samsung Electronics...
Page 12 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 13: Installation Diagram Of Indoor Unit And Outdoor Unit
B Drain hose installation Cut the piping hole sloped slightly Remote control holder Remote control Outdoor unit check point A-UNIT B-UNIT Piping (Liquid) 1/4” Clamper tube Piping (Gas) 1/2”, 3/8” Installation plate Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose Samsung Electronics...
Page 14 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 15 4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above. The hose will be fixed permanently into position once Shield the whole installation has been tested for gas leaks; refer to page 16 for further details. Drain hose Extension drain hose Samsung Electronics...
Page 16 4 Replace the terminal board cover, carefully tightening the screw. 5 Connect the power cable to the auxiliary circuit breaker. Outdoor unit Terminal Block Earth terminal Circuit Breaker (Main Power supply cable) Earth Earth terminal terminal Assembly cable Earth Earth Indoor unit A-unit B-unit Samsung Electronics...
Page 17 100 ohms (existing grounding electrode) Grounding screw hole 2 . Use of a grounding electro d e . • Specifications of grounding electro d e . Carbon plastic Steel core PVC-insulated wire(2mm x3.5m), green Terminal, M4 Samsung Electronics...
Page 18 90° Oblique Raughness Burr Pipe Reamer 3 ) Insert a flare nut into the pipe and modifty flare . Outer diameter A(mm) ø6.35mm ø9.52mm ø12.7mm * Unproper flaring Inclined Surface Cracked Uneven damaged thickness 3-10 Samsung Electronics...
Page 19 Charging Port 8. Check for gas leakage. - At this time, especially check for gas leakage from the 3-way valve’s stem nuts, and from the service port cap. Charging hose of Low pressure hose <Structure of 3-way valve> 3-11 Samsung Electronics...
Page 20: Operating Instructions And
M a x . p i p i n g Pipe Size length height LIQUID 1/4” 1/2” AD24A1(B1)E12 2. Connect the charging hose of low pressure side of AD19A1(B1)E12 1/4” 1/2” Manifold gauge to the packed valve having a charging 1/4”...
Page 21 7. Move the indoor and outdoor units to a new plug to avoid foreign material entering. l o c a t i o n . 8. Remove the mounting plate for the indoor unit and move it to a new location. 3-13 Samsung Electronics...
Page 22 Operating Instructions and Installation 3-2-3 Technical Document 3-2-3(a) AD24A1(B1)E12 / AD19A1(B1)E12 •Cooling Characteristics - Outdoor Te m p e r a t u re Test Condition Indoor Unit (DB/WB) : 27/19 Vo l t a g e / F requency : 240V/50Hz •In case of 2Unit, Capacity &...
Page 23 •In case of 2Unit, Capacity & Current multiplied by 2 Heating Capacity & Air Outlet Temperature Heating Capacity Air Outlet Temp 14000 13000 12000 11000 10000 9000 8000 7000 -5/-6 Outdoor Temperature(DB/WB) Current & Low Pressure Current Low Pressure -5/-6 Outdoor Temperature(DB/WB) 3-15 Samsung Electronics...
Page 24 Cooling Capacity & Air Outlet Temperature Cooling Capacity Air Outlet Temp. 10000 9000 8000 7000 21/15 43/26 35/24 Outdoor Temperature(DB/WB) Cooling Capacity & Low Pressure Cooling Capacity Low Pressure 10000 9000 8000 7000 21/15 35/24 43/26 Outdoor Temperature(DB/WB) 3-16 Samsung Electronics...
Page 25 Vo l t a g e / F requency : 240V/50Hz Heating Capacity & Air Outlet Temperature Heating Capacity Air Outlet Temp. 10500 9500 8500 7500 Outdoor Temperature(DB/WB) Heating Capacity & High Pressure Heating Capacity High Pressure 10500 9500 8500 7500 Outdoor Temperature(DB/WB) 3-17 Samsung Electronics...
Page 26 M E M O 3-18 Samsung Electronics...
Page 27: Troubleshooting
In case that the communication between the indoor unit and outdoor unit is not made for 60 seconds Outdoor sensor Error (open or short) (GREEN) - Outdoor sensor - Pipe sensor A, B (GREEN) The malfunction ot 4way valve in heat mode operation. Samsung Electronics...
Page 28 - LED lamp (red) is flickering after display of b (1 sec) - LED lamp (red) is flickering after display of C (1 sec) Result: If all of three units display lamps are flickering, the connection w i res and the room option connections are good. Samsung Electronics...
Page 29: Samsung Electronics
(possibility to check the communication status) Communication unit number display : C unit •During the test operation the unit under test (In case of triple split multi air conditioner) is on and off every 0.25s. Samsung Electronics...
Page 30 3. Once the test operation is completed, push switch S/W- A o r S / W-B to finish the test. 4. Once the test is completed, operate the indoor unit normally. 5. Check the operation is normal. Start up is over. Samsung Electronics...
Page 31: Fault Diagnosis By Symptom
IC (KA 7812) DC 10V and 12V? D105) and KA7812. Is the output voltage of electrostatic voltage KA7805 is out of order - replace regulator IC (KA 7805) DC 4.5 V - 5.5 V? Replace the main PCB of indoor unit Samsung Electronics...
Page 32 (D101 - D104) IC01 (KA 7812) is DC 12V. and KA 7812. Check whether the output voltage of Replace the IC 02 (KA7805) IC02 (KA 7805) is DC 5V. Replace the outdoor unit Ass'y main PCB. Samsung Electronics...
Page 33 Is the pin no. 12 of IC 06 (KID 65003) Replace the IC 06 (KID 65003) and the old type? SS71(G3MB202pl). 120Hz Is the pin no 25 of MICOM Replace Q401 (Ksc 945Y). the old type? Replace the indoor unit PCB Ass'y due to the Micom defect. Samsung Electronics...
Page 34 (3) Perform the comp ON/OFF control in the dry mode. (4) When it is under the operation of anti-freezing, overload protection, defrost operation, it may be Low, high or Off . (5) Hi = High speed, Low = Low speed Samsung Electronics...
Page 35 Does operation start when swing button of the remote con- Normal trol unit pushed? Voltage at pin #33-#36 of micom (ICO4) Micom (IC04) is faulty. change?(Squarewave) Volatge at pin #13, #14, #15, #16 of IC05 (KID65003) Driver IC05 (KID65003) is faulty. change?(Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...
Page 36: 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. 5-10 Samsung Electronics...
Page 37 (3) The changeover of heating to cooling : put the 4 way valve off immediately (in case of B and C ro o m ) . (4) The changeover of cooling to heating : it is on after 170 seconds delay. 5-11 Samsung Electronics...
Page 38: Indoor Unit Operation
(1) Comp A measuring ; RY 73 (4) ↔ RY 72 (4) RY71 (2) Comp B measuring ; RY 71 (4) ↔ RY 72 (4) (3) Power input ; RY 72 (3) ↔ RY 7 3 ( 3 ) RY73 5-12 Samsung Electronics...
Page 39: Pcb Inspection
The parts should be replaced in the following pro c e d u re . 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. 5-13 Samsung Electronics...
Page 40 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) 5-14 Samsung Electronics...
Page 41: Fault Diagnosis Of Major Parts
∞, O Ω … open or short Abnormal Measure resistance between red wire and each terminal. Stepping Motor Normal Approx. 380Ω at ambient temperature (20°C ~30°C) (UP/DOWN swing motor) ∞, O Ω … open or short Abnormal 5-15 Samsung Electronics...
Page 42: Exploded Views And Parts List
6. Exploded Views and Parts List 6-1 Indoor Unit Samsung Electronics...
Page 43 DB93-10630A ASS´Y MAIN PCB ASS´Y DB93-10586A ASS´Y MAIN PCB ASS´Y DB93-10630B ASS´Y MAIN PCB ASS´Y DB32-10008D THERMISTOR ASS´Y ASS´Y DB61-10151A CASE-CONTROL ABS(94-5V) DB61-60093A BODY-BUSH HIPS DB94-20030C ASS´Y BACK BODY ASS´Y DB61-40247A HOLDER PIPE HIPS DB70-10618A PLATE HANGER SGCC-M Samsung Electronics...
Page 44 6-2 Outdoor Unit (UD24A1(B1)E2) 6-2-1 UD24A1(B1)E2 10(10-1~10-3) 17(17-1,16-1) (9-1~9-3) 16(16-1,17-1) 12(12-1~12-6) (15-1~15-5) 5(5-1) 6(6-1~6-2) 13(13-1 ~13-1) 8(8-3) 13(13-1~13-5) 1(1-1) Samsung Electronics...
Page 45 NORYL COVER-TERMINAL 15-4 DB63-10165B MRA12030-12008 15-5 DB47-20001Z ASS'Y ASS'Y 4-WAY V/V, A DB99-10161A 4-WAY VALVE SAGINOMIYA 16-1 DB62-40035A ASS'Y ASS'Y 4-WAY V/V, B DB99-10162A SAGINOMIYA SOLENOID-V/V 17-1 DB27-10003D SAGINOMIYA SOLENOID-V/V DB27-10003E ASS'Y CONDENSER DB75-30109A P.E.H 100% SCREEN-GUARD DB63-30110J Samsung Electronics...
Page 46 Troubleshooting 6-2-2 UD18A1(B1)E2/UD19A1(B1)E2 10(10-1~10-3) 9(9-1~9-3) 8-1~8-3 16(16-1,17-2) 17(17-1,16-1, 16-2) 12(12-1~12-6) 14(14-1) 13(13-1) 15(15-1~15-5) 1(1-1) 5(5-1) Samsung Electronics...
Page 47 DB62-40035A 4-WAY VALVE SAGINOMIYA 16-2 DB27-10003D SOLENOID-COIL SAGINOMIYA DB99-10151A ASS'Y 4-WAY V/V, B AD18A1E2 DB99-00004A ASS'Y 4-WAY V/V, B AD19A1E2 17-1 DB27-10004E SOLENOID-V/V SAGINOMIYA 17-2 DB62-40035A 4-WAY VALVE SAGINOMIYA DB75-30110A CONDENSER AD18A1E2 CONDENSER AD19A1E2 DB63-30130B SCREEN-GUARD P.E.H 100% Samsung Electronics...
Page 48: Remote Control
ART 90 DB68-10777A LABEL DOOR ART 90 PH-M2 SCREW TAP PH-M2 DB67-60061A SPRING BATTERY SUS 304 DB67-60062A SPRING BATTERY SUS 304 DB67-60063A SPRING BATTERY SUS 304 90 250 PE BAG 90 250 DB93-40179B ASS’Y PCB REMOCON DB61-40243A HOLDER REMOCON Samsung Electronics...
Page 49 Exploded Views and Parts List 6-3-2 PCB Box Parts List Q’TY CODE NO Description Specification Remark AD24A1(B1)E12 AD18A1(B1)E09 AD19A1(B1)E07 AD19A1(B1)E12 DB61-10151A CASE-CONTROL ABS(94-5V) DB93-10585A ASS'Y MAIN PCB ASS’Y DB93-10630A “ “ DB93-10586A “ “ DB93-10630B “ “ DB09-10149A IC - MCU...
Page 50: Pcb Diagrams
7. PCB Diagrams 7-1 Main PCB Samsung Electronics...
Page 51 TB71 DE59-30001A CONNECTOR-TERMINAL 250TAP, 1PIN RY71 3501-001058 RELAY DI1U DC12V J1~J29,HR01,03,LR01 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM C701 C-MYLAR 224K C702 C-MYLAR 104K R904~906 R-CARBON RD 1/2T(S) 621-J CM71 CONNECTOR WAFER YW396-03AV(BLK) RY72 3501-000399 RELAY JQ1a-12V Samsung Electronics...
Page 52 C-CERAMIC 2201-000283 CA OA 50V 102Z DIODE SWITCHING 0401-000005 1N4148 C/W DIS & MODULE DB39-20346A UL1007 AWG#26/9 CASE-CENTER PCB UP DB61-10191A PC,BLUE CASE-CENTER PCB LOW DB63-10494A ABS,BLK SEAL DISPLAY UPP DB72-10233A FOAM-PE,BLK SEAL CASE DISPLAY DB72-10220F 30 FOAM-PE Samsung Electronics...
Page 53: Wiring Diagrams
8. Wiring Diagrams 8-1 Indoor Unit •AD24A1(B1)E12/AD18A1(B1)E09/AD19A1(B1)E07/AD19A1(B1)E12 Samsung Electronics...
Page 54 8-2 Outdoor Unit [UD24A1(B1)E2/UD18A1(B1)E2/UD19A1(B1)E2] Samsung Electronics...
Page 55 And if you need more information, please see the service bulletin Copyright Tr a d e m a r k s Samsung is a registered trademark and ®œ 1995 by Samsung Electronics Co., Ltd. SyncMaster 17GLi/CMG7387L and All rights reserved. MacMaster...
Page 56: Schematic Diagrams
9. Schematic Diagrams 9-1 Indoor Unit Samsung Electronics...
Page 57 9-2 Remote Control Samsung Electronics...

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Samsung AD24A1(B1)E12 Service Manual

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