DB98_16693A(2)_co 3/19/04 2:26 PM Page 3 ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT SH07ZS2 SH07ZS2A SH09ZS2 SH09ZS2A SH12ZS4 SH12ZS4A AQ07S2GE AQ09S2GE AQ12S4GE AQT12S4GB AQT12S4GE SH07ZS2X SH07ZS2AX SH09ZS2X SH09ZS2AX SH12ZS4X SH12ZS4AX UQ07S2GE UQ09S2GE UQ12S4GE UQT12S4GB UQT12S4GE SERVICE AIR CONDITIONER Manual CONTENTS 1. Product Specifications 2. Operating Instructions 3. Disassembly and Reassembly 4. Refrigerating Cycle Diagram 5. Set Up the Model Option 6. Troubleshooting 7.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 1 1. Product Specifications 1-1 Table Model Indoor unit Item Cooling Capacity ( ) : RUSSIA, CIS Heating Air Volume Energy Efficiency Ratio Cooling Heating Power Operating Current Cooling Heating 2.20kW 2.60kW 3.50kW (8,990 BTU/h) (11,990 BTU/h) 2.30kW 2.90kW 3.80kW (7,800 BTU/h) (8,990 BTU/h) (11,990 BTU/h) 1.4 1.4 1.9 22 6.8 22 8.2 24 36 50 39 51 43 53 3.65 3.41 3.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 2 Table(cont.) Model Indoor unit Item Type Cooling Capacity ( ) : RUSSIA, CIS Air Volume Noise Cooling Heating Power Operating Current Power Cooling Heating 3.50kW (11,990BTU/h) 2.40kW (8,200BTU/h) 2.90kW (8,990BTU/h) 3.80kW (11,990BTU/h) 0.9 1.4 1.9 24 7.0 24 8.2 24 39 51 43 53 3.15 W/W 3.53 3.30 3.45 1-220/240-50 1-220/240-50 730 940 1,150 680 880 1,100 3.3 4.3 5.1 3.1 4.0 5.0 96.2 95.0 98.0 95.4 95.7 95.7 A 21.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 3 Model Indoor unit Item Type Cooling Air Volume Noise Energy Efficiency Ratio Cooling Heating Power Operating Current Heating 7,500 BTU/h 9,000 BTU/h 12,000 BTU/h 7,800 BTU/h 10,000 BTU/h 13,000 BTU/h 1.4 1.4 8.2 24 dB 36 50 39 51 43 53 2.82 3.53 3.30 3.45 1-220 / 240-50 1-220 / 240-50 1-220 / 240-50 730 940 1,150 680 880 1,100 3.3 4.3 5.1 W A 3.1 4.0 5.0 96.2 95.0 98.0 95.4 95.7 95.7 A 21.0 21.0 32.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 4 Table(cont.) Model AQT12S4GB Indoor unit Item Type Heating Noise m3/min 8.2 dB 43 12,000 13,000 13,000 10,500 - 1.9 1.9 Cooling Energy Efficiency Ratio Heating Operating Current Power Power Factor Heating 10.5 11.0 7.44 - V-Hz 1-220-60 1-220/240-50 1,200 1,200 1,240 1,180 W - Cooling 5.5 5.3 5.7 5.2 Heating A SASO 6.5 - Cooling 99.2 98.4 98.9 98.7 Length % 98.6 - A 32.0 32.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 5 1-2 Pressure Graph ■ 7K BTU Low pressure (kg/cm2G) 32.4/24.0 30.6/22.5 6 28.8/21.0 27.0/19.0 24.0/17.0 5 21.5/15.0 4 20 25 30 35 40 Indoor inlet air D.B. temp (˚C) 7 45 Outdoor inlet air D.B. temp (˚C) ■ 9K BTU Low pressure (kg/cm2G) 32.4/24.0 30.6/22.5 5.5 28.8/21.0 27.0/19.0 24.0/17.0 4.5 21.5/15.0 3.5 20 25 30 35 40 Indoor inlet air D.B. temp (˚C) 6.5 45 Outdoor inlet air D.B. temp (˚C) ■ 12K BTU Low pressure (kg/cm2G) 32.4/24.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 6 2. Operating Instructions 2-1 The Feature of Key in remote control No NAMED OF KEY FUNCTION OF KEY On/Off & Timer Set/Cancel button. Press the button to stop and run the air conditioner or On/Off timer set up. 1 Mode selection button. Each time you press this button, Mode is changed in the following order. 2 : Auto Mode : Fan Only : Cool Mode : Heat Mode : Dry Mode (UP) Temperature adjustment button(UP).
DB98_16693A(2)_1 3/19/04 2:10 PM Page 7 Operating Instructions 2-1-1 Name & Function of Key in remote control 1. AUTO MODE : In this mode, operation mode(COOL, HEAT) is selected automatically by the room temperature of initial operation. DRY MODE : Has 3 states, each determined by room temperature. The unit operates in DRY mode. *Compressor ON/OFF Time is controlled compulsorily (can not set up the fan speed, always breeze). *Protective function : Low temperature release.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 8 Operating Instructions 9. SWING : BLADE-H is rotated vertically by the stepping motor. *Swing Set : Press the button under the remote control is displayed on LCD the and the blades move up and down. If the one more time press the button, blades location is stop. 10. SETTING THE ON/OFF TIMER. : *ON TIMER : The On Timer enables you to switch on the air conditioner automatically after a given period of time.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 9 2-2 Replace PCB Model option 2-2-1 Replace PCB model option Remove power cord Replace the PCB module Check the connection and plug in No Does all display lamp blink? Replace another PCB Yes Refer to set up the Model option(16~18page) Samsung Electronics 9
DB98_16693A(2)_1 3/19/04 2:10 PM Page 10 3. Disassembly and Reassembly Stop operation of the air conditioner and remove the power cord before repairing the unit. 3-1 Indoor Unit No Parts 1 Front Panel Procedure Remark 1) Stop the air conditioner operation and block the main power. 2) Detach tape of the Front Panel upper. 3) Open the upper Front Grille by pulling right and left sides of the Grille. 4) Slide the lower Front Grille down, then disassemble it by pulling it forwards.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 11 Disassembly and Reassembly No Parts 2 Electrical Parts (Main PCB) 3 Tray Drain 4 Heat Exchanger Procedure Remark 1) Take all the connector of PCB upper side out.(Including Power Cord) 2) Detach the outdoor unit connection wire from the Terminal Block. 3) If pulling the main PCB up, it will be taken out. 1) Pull Tray Drain out from the Back Body. 1) 2) 3) 4) Loosen 2 fixing earth screws of right side. Detach the Connection Pipe.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 12 Disassembly and Reassembly No Parts 5 Fan Motor & Cross Fan Procedure Remark 1) Loosen 2 fixing screws and detach the Motor Holder. 2) Loosen 1 screw of Fan Motor. (By use of M3 wrench) 3) Detach the Fan Motor from the Fan. 4) Detach the Fan from the left Holder Bearing.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 13 3-2 Outdoor Unit No Parts 1 Common Work Procedure Remark 1) Loosen 1 fixing screw and detach the Cover Terminal. 2) Loosen 1 fixing screw and detach the Cover Control. 3) Detach the connection wire from the Terminal Block. 4) Loosen 13 fixing screws and detach the Cabinet-Front. 5) Loosen 1 fixing screw of Ass'y E-part. 6) Loosen 4 fixing screws and detach the Cabinet-Side.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 14 Disassembly and Reassembly No Parts 2 Fan & Motor Procedure Remark 1) Detach the Nut Flange (Turn to the clockwise). 2) Detach the Fan. 3) Loosen 4 fixing screws to detach the Motor. 4) Loosen 5 fixing screws and detach the Motor Bracket from the Base. 14 3 Heat Exchanger 1) Loosen 2 fixing screws of left and right side. 2) Disassemble the inlet and outlet pipe by welding. 3) Detach the Heat Exchanger.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 15 4.
DB98_16693A(2)_1 3/19/04 2:10 PM Page 16 5. Set Up the Model Option 5-1 Setting Option Setup Method ex) Option No. : Step 1 : Enter the Option Setup mode. 1st Take out the batteries of remote control. 2nd Press the temperature insert the battery again. 3rd Make sure the remocon display shown as button simultaneously and . Step 2 : Enter the Option Setup mode and select your option according to the following procedure. 1 The default value is Otherwise, push the . button to .
DB98_16693A(2)_1 3/19/04 2:11 PM Page 17 Set Up the Model Option 7 Press button, then the default value is . 8 Push the 7 button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly. 8 9 9 10 Push the button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly. 11 10 12 Push the button to set the display panel to . Every time you push the button, the display panel reads ... repeatedly.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 18 Set Up the Model Option ■ OPTION ITEMS REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SH07ZS2 SH07ZS2A AQ07S2GE 0 2 4 5 6 7 1 7 A 2 0 c SH09ZS2 0 2 5 2 6 6 1 7 A 2 3 F SH09ZS2A AQ09S2GE 0 2 5 3 6 5 1 7 A 2 3 F SH12ZS4 0 6 6 0 6 5 1 7 A 3 5 1 SH12ZS4A AQ12S4GE 0 6 7 0 6 6 1 7 A 3 5 1 0 6 7 0 E 6 1 7 A 3 5 1 MODEL AQT12S4GB AQT12S4GE 18 Samsung Electroni
DB98_16693A(2)_1 3/19/04 2:11 PM Page 19 6. Troubleshooting 6-1 Items to be checked first 1. The input voltage should 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.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 20 Troubleshooting 4. Indoor unit observes operation condition of the air conditioner, and displays self diagnosis details on the display panel. LAMP OPERATION Error Mode TIMER 7-segment Display TURBO Indoor unit room temperature sensor error (open or short) Indoor unit heat exchanger temperature sensor error (open or short) Indoor fan motor malfunction EEPROM error Option error (option wasn't set up or option data error) Display Flickering : Lamp off 5.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 21 6-2 Fault Diagnosis by Symptom 6-2-1 No Power (completely dead)-Initial diagnosis 1. Checklist : 1) Is input voltage normal? 2) Is AC power linked correctly? 3) Is input voltage of DC regulator IC KA7805 (IC02) normal? (11VDC-12.5VDC) 4) Is output voltage of DC regulator IC KA7805 (IC02) normal? (4.5VDC-5.5VDC) 2.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 22 Troubleshooting 6-2-2 Room temperature sensor failure LAMP OPERATION Description TIMER TURBO 7-segment Display : Lamp off : Lamp flickering Indoor unit room temperature sensor error(open or short) Detach the assembly sensor from the ASS'Y PCB CN43 connector and measure the sensor resistance with an ohmmeter (tester). Is the sensor resistance value 10KΩ ±3% at the room temperature of 25˚C? No ASS'Y Sensor Replace SENSOR Resistance Value : 20˚C-12.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 23 Troubleshooting 6-2-3 Room Pipe sensor failure LAMP OPERATION Description TURBO 7-segment Display : Lamp off : Lamp flickering TIMER Indoor unit heat exchanger temperature sensor error (open or short) 1. Check the assembly condition of the sensor connector(CN43) on the indoor unit Main PCB and if not assembled, reassemble the connector accurately. 2. Detach the room pipe sensor connector(CN43) and check the resistance between connector 3 and 4.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 24 Troubleshooting 6-2-4 When the Indoor Unit Fan Does Not Operate. (Initial Diagnosis) LAMP OPERATION Description TIMER TURBO 7-segment Display : Lamp off : Lamp flickering Indoor fan motor malfunction 1.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 25 Troubleshooting 6-2-5 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 set temperature of the remote control lower than room temperature in HEAT mode? 4) Is the POWER IN connector (CN71) linked correctly? 5) Is the outdoor unit properly connected with the TERMINAL BLOCK connector(N(1), 1, 2, 3)? 2.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 26 Troubleshooting 6-2-6 When the UP/DOWN Louver Motor Does Not Operate. (Initial Diagnosis) 1. Checklist : 1) Is input voltage normal? 2) Is the UP/DOWN louver motor properly connected with the connector (CN61)? 2. Troubleshooting procedure Remove power cord and plug in again in approx. 5 seconds. No Is STD lamp blinking? Check as in the procedure "No Power".
DB98_16693A(2)_1 3/19/04 2:11 PM Page 27 Troubleshooting 6-2-8 When the remote control is not receiving 1. Check if the connector was normally assembled. 2. Put the set in operation and check the voltage of No. 3(+) and No. 2(-) of the main PCB CN91 while operating the remote control. When the voltage descends below 3V, the assembly module PCB is normal and the main PCB is poor. Then replace the main PCB. 3. Replace the assembly display PCB because the module PCB is poor if the voltage between No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 28 7. Exploded Views and Parts List 7-1 Indoor Unit 11 13 6 14 6-2 14-1 6-1 7 14-6 14-2 14-4 3 14-3 8 9 14-5 3-1 5 12 10 1 CIS / LATIN AMERICA 1-2 15 EUROPE / AFRICA 1-1 1-3 1-6 1-5 1-4 2 1-7 4 You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 29 Exploded Views and Parts List ■ Parts List Q'TY No. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 2 3 3-1 4 5 6 6-1 6-2 7 8 9 10 11 12 13 14 14-1 14-2 14-3 14-4 14-5 14-6 15 Code No.
DB98_16693A(2)_1 3/19/04 3:54 PM Page 30 Exploded Views and Parts List ■ Parts List Q'TY No. 1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 2 3 3-1 4 5 6 6-1 6-2 7 8 9 10 11 12 13 14 14-1 14-2 14-3 14-4 14-5 14-6 15 30 Code No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 31 Exploded Views and Parts List ■ Parts List Q'TY No. Code No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 32 7-2 Outdoor Unit 5 23 14 13 7 6 15-1 15-2 12 15 15-4 2 15-7 15-3 3 9 10 4 15-6 1 22 21 15-5 20 4-1 18 19 8 11 16 17 4-2 32 Samsung Electronics
DB98_16693A(2)_1 3/19/04 2:11 PM Page 33 Exploded Views and Parts List ■ Parts List Q'TY No. Code No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 34 Exploded Views and Parts List ■ Parts List Q'TY No. Code No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 35 MEMO Samsung Electronics 35
DB98_16693A(2)_1 3/19/04 2:11 PM Page 36 7-3 Ass'y Control In (Indoor Unit) ■ AQO✳S2G✳, SHO✳ZS2✳(NO PLUG) : DB93-02524A ■ AQO✳S2G✳, SHO✳ZS2✳(PLUG) : DB93-02524C 36 Samsung Electronics
DB98_16693A(2)_1 3/19/04 2:11 PM Page 37 Exploded Views and Parts List ■ Parts List No. Code No. Description Specification Q'TY Remark 1 DB61-01127A CASE-CONTROL ABS 1 2 DB93-02447A ASS'Y-MAIN PCB ASS'Y 1 3 DB93-02508A ASS'Y-TERMINAL BLOCK ASS'Y 1 4 DB93-02525A ASS'Y SUB PCB ASS'Y 1 5 DB70-00289A PLATE-TERMINAL LOW SGCC-M T1.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 38 Exploded Views and Parts List ■ AQ(T)12S4G✳, SH12ZS4✳ : DB93-02539A 38 Samsung Electronics
DB98_16693A(2)_1 3/19/04 2:11 PM Page 39 Exploded Views and Parts List ■ Parts List No. Code No. Description Specification Q'TY 1 DB61-01631A CASE-CONTROL ABS 1 2 DB93-02447A ASS'Y-MAIN PCB ASS'Y 1 3 DB93-02508A ASS'Y-TERMINAL BLOCK ASS'Y 1 4 DB93-02525A ASS'Y SUB PCB ASS'Y 1 5 - PLATE-TERMINAL LOW SGCC-M T1.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 40 8.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 41 9.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 42 PCB Diagram ■ BOTTOM 42 Samsung Electronics
DB98_16693A(2)_1 3/19/04 2:11 PM Page 43 PCB Diagram ■ Parts List Location No. Description Specification Q'TY Remark D71 DIODE-RECTIFIER UF4007,1KV,1A,DO-41,TP 1 SNA D102 DIODE-RECTIFIER UG2D,200V,2A,DO-204AC,TP 1 SNA BD71 DIODE-BRIDGE DF06S,600V,1A,SMD-4,TP 1 SNA D101 DIODE-ZENER BZX84C3V6,3.6,350mW,SOT-23,TP 1 SNA D103 DIODE-ZENER BZX84-C11,10.4-11.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 44 PCB Diagram ■ Parts List(cont.) Location No. Description Specification Q'TY Remark C202,C203,C404 C-CER,CHIP 10nF,+80-20%,50V,Y5V,TP,2012 3 SNA XC72,XC71 C-FILM,LEAD-PPF 100nF,10%,275V,BK,18x6x12,15 2 SNA CR71 C-FILM,LEAD-PPF 1.2uF,10%,450Vac,BK,38x18x30,3 1 SNA C102 C-AL 470uF,20%,25V,GP,TP,10x12.5mm 1 SNA C101 C-AL 10uF,20%,450V,GP,TP,13x20mm,5m 1 SNA C104 C-AL 470uF,20%,16V,GP,TP,10x12.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 45 9-2 ASS'Y SUB PCB(7K/9K/12K) : DB93-02525A ■ Parts List No.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 46 10. Wiring Diagram 10-1 Indoor Unit(7K/9K/12K) Code No : DB98-15135A This Document can not be used without Samsung's authorization.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 47 10-2 Outdoor Unit ■ SH07ZS2X /SH09ZS2X / UQT12S4GB / UQT12S4GE C1 MOTOR CAPACITOR C2 COMP CAPACITOR FM O.L.P FAN MOTOR OVER LOAD PROTECTOR Code No : DB98-15123A ■ SH12ZS4X C1 MOTOR CAPACITOR C2 COMP CAPACITOR FM O.L.P FAN MOTOR OVER LOAD PROTECTOR Code No : DB98-16523A This Document can not be used without Samsung's authorization.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 48 Wiring Diagram ■ SH07ZS2AX / SH09ZS2AX / SH12ZS4AX / UQ07S2GE / UQ09S2GE / UQ12S4GE C1 MOTOR CAPACITOR C2 COMP CAPACITOR FM O.L.P FAN MOTOR OVER LOAD PROTECTOR Code No : DB68-01624A This Document can not be used without Samsung's authorization.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 49 11. Schematic Diagram 11-1 Indoor Unit(7K/9K/12K) This Document can not be used without Samsung's authorization.
DB98_16693A(2)_1 3/19/04 2:11 PM Page 50 MEMO 50 Samsung Electronics
DB98_16693A(2)_1 3/19/04 2:11 PM Page 51 MEMO Samsung Electronics 51
DB98_16693A(2)_1 3/19/04 2:11 PM Page 52 MEMO 52 Samsung Electronics
DB98_16693A(2)_co 3/19/04 2:26 PM Page 2 ELECTRONICS This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. © Samsung Electronics Co., Ltd. Mar. 2004. Printed in Korea. Code No.
