ROOM AIR CONDITIONER INDOOR UNIT AM24A1(B1)E12 AM26A1(B1)B13 SERVICE OUTDOOR UNIT UM24A1(B1)E2 UM26A1(B1)B2 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 10.
1. Precautions 1. Warning: Prior to repair, disconnect the power cord from the circuit breaker. 2. Use proper parts: Use only exact replacement parts. (Also, we recommend replacing parts rather than repairing them.) 3. Use the proper tools: Use the proper tools and test equipment, and know how to use them. Using defective tools or test equipment may cause problems later-intermittent contact, for example. Fig. 1-1 Avoid Dangerous Contact 4.
2. Product Specifications 2-1 Table Model Item AM24A1(B1)E2 INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT AM24A1(B1)E12 UM24A1(B1)E2 AM26A1(A1)B13 UM26A1(B1)B2 Type Wall-Mounting Multi Split Cooling Performance AM26A1(B1)B2 BTU/h 12,000 24,000(12,000x2) 12,000 24,000(12,000x2) Dehumiditying I/h 1.9 - 1.9 - Air volume Cooling 3 m /min 8.5 - 8.5 - dB 38 56 38 Noise Cooling Power ~ V-Hz 56 ~ 1-220-240V .
2-2 Dimensions 2-2-1 Indoor Unit (Remote control) (Front view) Air in 815 182 58 22 Air out Installation plate (Rear view) 2-2-1 Outdoor Unit (Front view) (Rear view) 660 1000 2-2 335 Samsung Electronics
2-3 Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT T1 (A) (B) Capillary tube 2-way valve Liquid side Heat exchanger (Evaporator) Compressor-B Heat exchanger (Evaporator) T2 Gas side 3-way valve Cooling Gas leak check point Compressor-A Refrigerating cycle temperature and pressure Operating Condition A or B Cooling A+B Standard Max over load Low temp. Standard Max over load Low temp. Samsung Electronics STD Pressure (kg/cm2G) 3-way valve 5.0~5.2 6.0~6.3 3.4~3.6 5.0~5.2 6.0~6.
3. Operating Instructions and Installation 3-1 Operating Instructions 3-1-1 Name & Function of Key in remote controller NO FUNCTION OF KEY NAMED OF KEY On/Off Button. Use this button to start and stop air conditioner. 1 2 (UP) Temp. up button. If the button is pressed once, the setting temperature is increased by 1°C (DOWN) Temp. down button. If the button is pressed once, the setting temperature is decreased by 1°C Each time you press this button, MODE is changed in the following order.
Operating Instructions and Installation 3-1-2 Name & Function of Key in remote controller 1. AUTO MODE : In this mode, operation COOL mode is selected automatically by the room temperature of initial operation. Operation Type Cool Operation Room Temp Tr≥ 24.5°C+∆T Compressor ON Tr≤ 24°C+∆T Compressor OFF ∆T= -2°, -1°C, 0°C+1°C+2°C ∆T is controlled by setting temperature up/down key of remote controller * FAN SPEED : AUTO 2.
Operating Instructions and Installation 7. COMPULSORY OPERATION : For operating the air conditioner without the remote controller. *AUTO : The operating is the same function that AUTO MODE in the remote controller. 8. SWING : BLADE-H is rotated vertically by the stepping motor. 9. Quick OFF TIMER: OFF timer (quick timer) allows reservation or cancel the timer on and timer off quickly When OFF timer button is pressed at operating state, LCD displays the polling state sequentially.
3-2 Installation 3-2-1 Selecting Area for Installation Select an area for installation that is suitable to the customer's needs. 3. 3-2-1(a) Indoor Unit 1. Make sure that you install the indoor unit in an area providing good ventilation. It must not be blocked by an obstacle affecting the airflow near the air inlet and the air outlet. 2. Make sure that you install the indoor unit in an area allowing good air handling and endurance of vibration of the indoor unit. 3.
Operating Instructions and Installation 3-2-2 Installation diagram of indoor unit and outdoor unit A Indoor unit gas leak test check point Indoor unit Piping may be laid to the rear, left, right or down .
Operating Instructions and Installation 3-2-2(a) Fixing the Installation Plate 1. Determine the position of the pipe and drain hose hole using the right figure and drill the hole with an inner diameter of 65mm so that it slants slightly downwards. Installation plate Pipe hole (ø65mm) 2. If you are fixing the indoor unit to a… Then follow Steps… Wall 3. Window frame 4 to 6. 3. Fix the installation plate to the wall in a manner appropriate to the weight of the indoor unit.
Operating Instructions and Installation 3-2-2(c) Connecting the Assembly Cable. The outdoor unit is powered from the indoor unit via the assembly cable. If the outdoor unit is more than five metres away from the indoor unit, the cable must first be extended to a maximum of ten metres. 1. Extend the assembly cable if necessary. 2. Open the front grille by pulling on the tabs on the lower right and left sides of the indoor unit. 3. Remove the screw securing the connector cover. 4.
Operating Instructions and Installation 3-2-2(e) Outdoor unit installation GAS LEAK TEST Outdoor unit check point Indoor unit check point Check for gas leak from the flare nut connections with leak detector. WIRING CONNECTION Two electric cables must be connected to the outdoor unit: • The assembly cable connecting the indoor unit to the outdoor unit. • The power cable connecting the auxiliary circuit breaker to the outdoor unit. 1 Remove the terminal board cover on the side of the outdoor unit.
Operating Instructions and Installation Grounding (The parts for this work are optional.) • A grounding terminal can be found on the outdoor unit as illustrated. 1. When an existing grounding terminal is avilable. (Grounding wire of ø1.6mm or largeror 2mm2 or larger ) Terminal used exclusively for grounding. Grounding resistance: less than 100 ohms (existing grounding electrode) 2. Use of a grounding electrode. • Specifications of grounding electrode.
Operating Instructions and Installation 3-2-2(f) Flare Modification • Tools used Flare modification procedure 1) Cut the pipe using a pipe cutter. 90° Oblique Raughness 2) Remove burrs at the tip of the pipe cut. Caution : Burrs not removed may result in leakage of gas. Burr Pipe Reamer 3) Insert a flare nut into the pipe and modifty flare. D A Outer diameter ø6.35mm ø9.52mm ø12.7mm A(mm) 1.3 1.8 2.
Operating Instructions and Installation 3-2-2(g) Air Purging CAUTION The air in indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling/heating capacity, and could lead to a malfuction. Refrigerant for air purging is not charged in the outdoor unit. Use additional refrigerant as shown at the right figure. Each unit must be purged in turn 1. Check the piping connections 2.
Operating Instructions and Installation 3-2-2(h) Refrigerant Refill If connecting pipe of more than 10 metres is installed, additional refrigerant should be charged by extra metre. You don’t have to charge additional refrigerant up to 10 metres of connecting pipe. 1. Remove the valve stem cap and service port of 3-way valve. 2. Connect the charging hose of low pressure side of Manifold gauge to the packed valve having a charging port(1/2” Packed valve) as shown at the right figure. 3.
Operating Instructions and Installation 3-2-2(j) Pump down 1. Confirm that both the 2-way and 3-way valves are set to the open position. (1) Remove the valve stem caps. (2) Be sure to use a hexagonal wrench to operate the Gas side valve stems. 2. Operate the unit for 10 to 15 minutes. 3. Stop operation and wait for 3 minutes, then connect the charge set to the service port of the 3-way valve. (1) Connect the charge hose with the push pin to the service port. 2-Way Valve 4. Air purging of the charge hose.
Operating Instructions and Installation 3-2-3 Technical Document • Cooling Characteristics - Outdoor Temperature Indoor Unit(D/WB) : AM24A1(B1)E12 : 27/19, AM26A1(B1)B13 : 27/19.5 AM24A1(B1)E2 : 240V/50Hz, AM26A1(B1)B2 : 220V/60Hz Cooling Capacity & Air Outlet Temperature Cooling Capacity (AM24A1(B1)E12) Cooling Capacity (AM26A1(B1)B13) Air Outlet Temp. (AM24A1(B1)E12) Air Outlet Temp. (AM26A1(B1)B13) 15 15000 14 14000 13 13000 12 12000 11 10 11000 21/15(15.5) 21/19(19.5) 35/24 43/26(25.
4. Disassembly and Reassembly Stop operation of the air conditioner and remove the power cord before repairing the unit. 4-1 Indoor Unit No Parts 1 Front Grille Procedure Remark 1) Stop the air conditioner operation and block the main power. 2) Seperate the tape of front. Panel upper. 3) Contract the second finger to the left and right handle and pull to open the inlet grille. 4) Take the left and right filter out. 5) Loosen one of the right fixing screw and seperate the terminal cover.
Disassembly and Reassembly No Parts Procedure 2 Filter Frame 1) Loosen the left and right screw of the Holder Filter, and Separate the Holder Filter. 3 Ass'y Tray Drain 1) Do ①② , above. Separate the holder at the rear side of Indoor unit. Remark 2) Take the display PCB out. (Center of indoor unit). 3) Loosen three fixing screws of left and right. 4) Pull tray drain out from the back body. 4 Main PCB 1) Do " ①② ", above 2) Take all the connector of PCB upper side out.
Disassembly and Reassembly No Parts 5 Heat Exchanger Procedure Remark 1) Do " ①②③④ ", above. 2) Loosen the left screws of the heat exchanger. Lifting the heat exchanger up a little to push the up side for separation from the indoor unit 6 Fan Motor and Cross Fan 1) Do " ①②③④⑤ ", above. 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.
4-2 Outdoor Unit No Parts 1 Cabinet Procedure 1) 2) 3) 4) 5) 6) Remark Turn off the unit and remove the power cable Remove the top cover. Remove the control box cover. Unplug the ass'y cable. Remove the cabi-side. Remove the cabi-front. * When you assemble the parts, check if the each parts and electric connectors are fixed firmly. 2 4-4 Fan Motor & Propeller Fan 1) Do Procedure 1 above. 2) Remove the nut flange.
5. Troubleshooting 5-1 Items to be checked first 1) Is the voltage of the power correct? The input voltage shall be rating Voltage ±10% range. The airconditioner may not operate properly if the voltage is out of this range. 2) Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 5 cables. Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
5-2 Fault Diagnosis by Symptom 5-2-1 No Power (completely dead)-Initial diagnosis 1) 2) Checklist : (1) Is input voltage normal? (2) Is AC power linked correctly? (3) Are connections between primary side, secondary side of the power transformer and PCB good. (4) Is output voltage of DC regulator IC KA7812 (IC01) normal? (11VDC-12.5VDC) (5) Is output voltage of DC regulator IC KA7805 (IC02) normal? (4.5VDC-5.5VDC) Troubleshooting procedure Remove power cord and plug in again in approx.
Troubleshooting 5-2-2 When the Indoor Unit Fan Does Not Operate. (Initial Diagnosis) 1) Checklist : (1) Is the indoor unit fan motor properly connected with the connector (CN73)? (2) Is the AC voltage correct? (3) Is HALL IC in indoor fan motor properly connected with the connector (CN43)? (4) Is the running capacitor properly connected with the terminal? 2) Troubleshooting procedure After unplugging out the power cord should be reconnected within five seconds.
Troubleshooting 5-2-3 When the Outdoor Unit Does Not Operate. (Initial Diagnosis) 1) Checklist : (1) Is input voltage normal? (2) Is the set temperature of the remote control higher than room temperature in COOL mode? (3) Is the POWER IN connector (terminal-tab) linked correctly? (4) Is the outdoor unit properly connected with the TERMINAL BLOCK connector(5P)? 2) Troubleshooting procedure (1) Checking procedures for the indoor unit.
Troubleshooting 5-2-4 When the UP/DOWN Louver Moter Does Not Operate. (Initial Diagnosis) 1) 2) Checklist : (1) Is input voltage normal? (2) Is the UP/DOWN louver motor properly connected with the connector (CN61)? Troubleshooting procedure Remove power cord and plug in again in approx. 5 seconds. Y Is operating lamp blinking? Check as in the procedure "No Power parts". Refer to page 5-2.
Troubleshooting 5-2-6 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis) 1) Troubleshooting procedure Remove power cord and plug in again approx. 5 Seconds Is operation lamp blinking? N Y “ “ sound heard from the indoor unit when ON/OFF button on the remote control unit pushed? Y Check as in the procedure “NO Power parts”. Refer to page 5-2. Normal N Voltage of battery less than 2.5V (Remote Control Unit)? Y Replace battery.
Troubleshooting 5-3 PCB Inspection 5-3-1 Cautions for Part Replacement 1. The human body carries much static electricity. Before touching a part for repair, replacement or the similar purpose, be sure to touch a grounded metallic portion by hand to let the static electricity go through the matallic portion to the earth. Espectially when handling any micro computer or IC, carefully remove such static electricity before touching them. 2.
Troubleshooting 5-3-3 Detailed Procedure No. Malfunction 1 Pull out the power plug from the AC terminal and confirm the fuse on the PCB assembly 1. Is the fuse blown? 2 Turn the power on. If lamp blinks trouble is not related to the items 1 through 4 on the right. Voltage check 3 4 5 5-8 Set operating mode when RMC switch pushed. Except for [FAN]mode and [TIMER] mode. Checking point (symptoms) Causes 1. Voltage over 2. Indoor unit fan motor short-circuit. 1.
Troubleshooting 5-4 Fault Diagnosis of Major Parts Diagnosis Parts Temp.Sensor Heat ex. Sensor Indoor Fan Motor Measure resistance with a tester.
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Exploded Views and Parts List ■ Parts List Q’TY No.
6-2 Outdoor Unit 10-3 6-3 Samsung Electronics
Exploded Views and Parts List ■ Parts List No.
6-3 Remote Control & PCB Box 6-3-1 Remote Control ■ Parts List No CODE NO Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 DB93-30071F DB61-10144A DB61-10145A DB64-20054A DB63-10477A DB74-10084A DB73-20110B DB64-40167A DB64-40166B DB68-10775A DB68-10777A PH-M2 DB67-60061A DB67-60062A DB67-60063A 90 250 DB93-40179B DB61-40243A ASS’Y CODE CASE UP CASE LOW DOOR REMOCON COVER BATTERY FILTER REMOCON RUBBER REMOCON INLAY LCD INLAY REMOCON LABEL REMOCON LABEL DOOR SCREW TAP SPRING BATTERY SPRING BATTE
Exploded Views and Parts List 6-3-2 PCB Box 2-5 2-6 2-4 2-2 2-1 2-3 3 2 1 ■ Parts List CODE NO 1 DB61-10151A CASE-CONTROL ABS(94-5V) 1 1 2 DB93-10584A ASS'Y MAIN PCB ASS’Y - 1 DB93-10595A ASS'Y MAIN PCB ASS’Y 1 - 2-1 DB09-10149A IC - MCU MB89635R-466 1 1 2-2 DB32-10008D THERMISTOR ASS'Y 103AT 1 1 2-3 DE26-20154A TRANS-POWER AC230V DC17V 300mA 1 1 2-4 2306-000294 C-FILM CFS 99N 450VAC 155K 1 1 2-5 3501-001058 POWER-RELAY DI1U DC12V 1 1 2-6 DE32-10037A
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PCB Diagrams ■ PART LIST No DESIGN LOCATION CODE NO Description Specification Q’TY 1 F701 DE32-10037A FUSE FST 250V 3.15A 1 2 F701 DE47-40024A HOLDER-FUSE FH-51H 7.5A 1 3 IC01 DE13-20008A IC-VOLT REGU KA7812A 1 4 IC01 DE62-30032A HEAT-SINK AL H25 1 5 IC01 DE60-10100A SCREW-PH M3*6 FeFzY 1 6 IC02 DE13-10016A IC-VOLT REGU KA7805A 1 7 CR71 2306-000294 8 FT71 C-FILM CQS 450V 1.
8-2 ASS’Y DISPLAY & Module PCB 8-2-1 AM24A1E12/AM26A1B09 • DB93-10560B ■ PART LIST No Description CODE-NO 1 PCB-DISPLAY DB41-10204B FR-1 T1.
PCB Diagrams 8-2-2 AM24B1E12/AM26B1B09 • DB93-10561B ■ PART LIST No Description CODE-NO 1 PCB-DISPLAY DB41-10205B FR-1 T1.
9. Wiring Diagrams 9-1 Indoor Unit 9-2 Outdoor Unit 1 2 3 4 ENGLISH BLK RED WHT YEL ESPANOL FRANCAIS ITALIANO NEGRO NOIR NERO ROJO ROUGE ROSSO BLANCO BLANC BIANCO AMARILLO JAUNE GIALLO UM24A1(B1)E2 CAPACITOR FAN MOTOR : 4µF/450VAC COMP MOTOR : 30µF/420VAC UM26A1(B1)B2 CAPACITOR 9-1 FAN MOTOR : 3.
UPDA TE LOG SHEET Application date Page Part# Note(Cause & Solution) S/Bulletin# Use this page to keep any special servicing information. (Service Bulletin, etc.) If only parts number changes, Just change parts number directly on parts list. And if you need more information, please see the service bulletin Copyright Trademarks ®œ 1995 by Samsung Electronics Co., Ltd. All rights reserved.
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10-2 Remote Control 10-2 Samsung Electronics
