Samsung UQV12A0TE Service Manual Download Page 49

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Samsung Electronics

8-1

8. Wiring Diagrams

8-1 Indoor Unit

Summary of Contents for UQV12A0TE

Page 1: ...T UQV12A0TE CONTENTS AIR CONDITIONER 1 Precautions 2 Product Specifications 3 Operating Instructions and Installation 4 Disassembly and Reassembly 5 Troubleshooting 6 Exploded Views and Parts List 7 PCB Diagrams 8 Wiring Diagrams ROOM AIR CONDITIONER ...

Page 2: ...ng into a power cord This practice may result in malfunction or fire 6 After completing repairs and reassembly check the insulation resistance Procedure Prior to applying power measure the resis tance between the power cord and the ground terminal The resistance must be greater than 30 megohms 7 Make sure that the grounds are adequate 8 Make sure that the installation conditions are satisfactory R...

Page 3: ...frigerant tube Narrow tube Liquid mm X MT Wide tube Gas mm X MT Capillary tube Cooling mm Heating mm Refrigerant to charge R22 gr Dimension Indoor unit W x H x D Outdoor unit W x H x D Weight Indoor unit Outdoor unit AQV12F2VE UQV12A0TE 1 220 240 50 3 500 2 580 4 100 12 000 8 800 14 000 9 4 11 3 8 4 8 4 1 9 36 40 51 3 800 2580 4830 13 000 8800 16500 9 8 11 9 8 2 8 8 34 38 52 187 264 5 6 3 7 7 1 MA...

Page 4: ...2 2 Samsung Electronics 2 2 Dimensions 2 2 1 Indoor Unit 2 2 1 Outdoor Unit Air in Front view Remote control Rear view Front view Rear view Air out Installation plate ...

Page 5: ...ycle Block Diagram INDOOR UNIT OUTDOOR UNIT Heat exchanger Evaporator Gas side 3 way valve 2 way valve Liquid side Capillary tube Cooling Gas leak check point Heat exchanger Condenser Heating Capillary tube Check valve Compressor 4 way valve T T ...

Page 6: ...f Use this button to reserve the timer on Set up the time that operation stop Set up the time that operation start Each time you press this button FAN SPEED is changed in the following order Adjusts air flow vertically Use this button for sleep operation The SLEEP mode can be selected at COOL and HEAT mode Set up the reserve or cancel the timer on and timer off quickly Use this button to provide h...

Page 7: ...of the processing time by de ice Condition 4 DRY MODE The unit operates in DRY mode Protective function Low temperature release Prevention against freeze 5 TURBO MODE This mode is available in AUTO COOL HEAT DRY FAN SLEEP Mode When this button is pressed at first the air conditioner is operated powerful state for 30 minutes regardless of the set tempera ture room temperature When this button is pr...

Page 8: ... the air conditioner and displays the results of self diagnosis on display pannel 14 AUTO RESTART The air conditioner starts immediately without control of remote controller when plugged It s the case that the Auto restart fanction works Auto restart function is the convenient function where the operation state is mem orized in the Memory IC during the black out and the operation restarts when the...

Page 9: ... in a high place 3 Make sure that you install the outdoor unit in area providing good ventilation and which is not dusty It must not be blocked by any obstacle affecting the airflow near the air inlet and the air outlet 4 Make sure that you install the outdoor unit in area free from animals or plants 5 Make sure that you install the outdoor unit in area not blocking the traffic 6 Make sure that yo...

Page 10: ... sloped slightly Piping Liquid 1 4 Clamper tube Installation plate Installation tube Pipe connection Vinyl tape Screw Putty Drain hose Piping may be laid to the rear left right or down Right Rear Down 160mm ormore 100mmormore Rear Left 3 2 5 6 7 8 9 4 10 1 2 3 4 5 6 7 8 9 10 1 Remote control Remote control holder 9K BTU Piping Gas 3 8 12K BTU Piping Gas 1 2 Operating Instructions and Installation ...

Page 11: ...chor bolts the anchor bolts must not project by more than 20mm 4 Determine the positions of the wooden uprights to be attached to the window frame 5 Attach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit 6 Using tapped screws attach the installation plate to the wooden uprights as illustrated in the last figure oppo site On delivery the indoor unit ...

Page 12: ...Brown N Sky blue C Black E Yellow Green 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 scr...

Page 13: ...iring connection Installing and Connecting the Outdoor Unit Drain Hose When using the air conditioner in the heating mode ice may accumu late During de icing the condensed water must be drained off safely Consequently you must install a drain hose on the outdoor unit fol lowing the instructions below 1 Insert the drain plug into the drain hole on the underside of the outdoor unit 2 Connect the dra...

Page 14: ...ng a pipe cutter Tools used 2 Remove burrs at the tip of the pipe cut Caution Burrs not removed may result in leakage of gas 3 Insert a flare nut into the pipe and modifty flare Unproper flaring Outer diameter A mm ø6 35mm 1 3 ø9 52mm 1 8 ø12 7mm 2 0 Oblique Raughness Burr Pipe Reamer Inclined Surface damaged Cracked Uneven thickness D A ...

Page 15: ...e the cap of each valve 8 Check each valve for leakage 5 Open the service valve cap of the 3 way valve and press the needle valve to discharge gas for 3 seconds and leave it for about 1 minute Repeat the above procedure for 3 times to purge air Leaking If leaking tighten the flare nut one more time If continues to leak although the pipe fixing area has been tightened again repair the leaking area ...

Page 16: ... gauge low pressure side to the service valve and open the 3 way valve again 5 Check the pressure indicated by the pressure gauge low pressure side Refer to Low pressure graph 6 Open the refrigerant tank and fill with refrig erant until the rated pressure is reached It is recommended not to pour the refrigerant in too quickly but gradually while operating a pressure valve 8 Close the 3 way valve d...

Page 17: ...0 Fixing Torque Final Torque Torque kg cm Connection Pipe Length 5m Max 5 10m Air Purge Method Refer to the detailed Air Purge Procedure Refrigerant Adjustment Unnecessary Add 10g of refrigerant R 22 for every 1m Air Purge Method Purge air using a vaccum pump or an additional refrigerant cylinder Refrigerant Quantity refer to specification sheet Add 10g of refrigerant R 22 for every 1m 20 25 30 35...

Page 18: ... air conditioner Refer to this procedure when the unit is relocated 1 Carry out the pump down procedure refer to the details of pump down 2 Remove the power cord 3 Disconnect the assembly cable from the indoor and outdoor units 4 Remove the flare nut connecting the indoor unit and the pipe At this time cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign ...

Page 19: ...nd 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 separate the terminal cover 6 Loosen three fixing screws of front grille 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...

Page 20: ...o 1 2 above 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 1 Do 1 and 2 3 above 2 Loosen two fixing earth screws of right side 3 Separate the connection pipe 4 Separate the bush body at the upper side and holder at the rearside...

Page 21: ...edure Remark 5 Fan Motor and Cross Fan 1 Do 1 2 3 4 above 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 ...

Page 22: ...osen six fixing screws and separate the Cabi Upper 4 Loosen four fixing screws from the Ass y Control Out 5 Separate the Terminal Housing from the Ass y Control Out 6 Separate the Ass y Control Out from the outdoor unit 7 Loosen five fixing screws and separate the Cabi Side Take care of the electrical shock by contact on the charging parts before the discharge after power off If takes approximatel...

Page 23: ...Turn the Guard Fan to separate from the Cabi Front 4 Remove the nut flange Turn to the right to remove as it is a left hand screw 5 Separate the fan 6 Loosen four fixing screws to separate the motor 1 Do 1 above 2 Loosen four fixing screws of Ass y Frame and Partition 3 Disassemble the inlet and outlet pipe by welding 4 Separate the heat exchanger ...

Page 24: ...r 1 Do 1 above 2 Open the terminal cover of compressor and unscrew the connection terminal 3 Disassemble the inlet and outlet pipe of com pressor by welding 4 Disassemble the inlet and outlet pipe of con denser by welding 5 Loosen the three bolts of the lower part 6 separate the compressor ...

Page 25: ...off or the power unplugged Does it stop because it is the completion time Unplug and plug again the power source for 2 minutes Is the filter clogged with dust or dirty Is there any direct light on the outdoor unit or any obstacle against it Is the selected temperature too high Lower the selected temperature lower than the cur rent one during cooling Is the selected temperature too low Raise the de...

Page 26: ... COMP top Defrost temperature sensor Outdoor temperature sensor Communication trouble between the indoor and outdoor units Misconnection or circuit trouble of the indoor and outdoor units Abnormal increase of the operation current Occurring of the inverter circuit instantaneous over current Abnormal increase of the COMP Top and discharge gas temper ature Refrigerant Refill operation test operation...

Page 27: ...n the indoor and outdor unit Trouble of the control power of the outdoor 12V Instantaneous over current of inverter circuit Abnormal increase of the discharge temperature Abnormal increase of operation current Abnormal increase of comp top temperature Trouble of outdoor temperature sensor open short Trouble of the OLP temperature sensor open short Trouble of outdoor Heat exchanger temperature sens...

Page 28: ...e indoor and outdoor communication G Operation Fan lamp flickering Check of the outdoor unit temperature sensor Discharge temperature sensor H Comp top OLP temperature sensor I Defrost temperature sensor J Outdoor temperature sensor K Turbo lamp flickering Check of the abnormal increase protection of the operation Current L Reservation Turbo lamp Check of the instantaneous over current protection ...

Page 29: ...it with the new one Step 4 check the output of transformer on the control board TN71 Input power AC 240V 50 Hz IC 01 output DC 12V IC 02 output DC 5V 5 3 2 B C Display board and remocon check of indoor unit Check whether the connection wire of Display board is correctly connected to CN92 connector Check the voltage of remocon battery the voltage of one battery shall be higher than about 1 4 V and ...

Page 30: ...o the C N R terminal If the wire is connected reversely the communication error occurs If the cable connecting the indoor unit and outdoor unit is longer than 20 M error mode occurs shorten the cable length Check of indoor unit Check whether the connection wire of the terminal block and control of indoor unit board is cor rect Sky blue connected to TB72 Brown connected to 3 terminal of RY71 Black ...

Page 31: ...tion current abnormal rise occurs The ventilation is not good because the outdoor unit is installed wrong the ambient tempera ture is higher than 50 C Reinstall the outdoor unit so that the good ventilation can be made If the Refrigerant is overcharged Check the amount of Refrigerant If the comp is locked Replace the comp If the comp is operating without the revolution of fan motor Check the fan m...

Page 32: ...ithout the revolution of fan motor Check the fan motor connector and replace the fan motor In case the parts of the control board is damaged Replace simultaneously the inverter control board and the power TR 5 3 10 N Check of the comp Top OLP and discharge gas temperature abnormal rise If the comp top temperature and the discharge gas temperature rises higher than a certain level it protects the c...

Page 33: ...rom the power TR module if the outdoor fan is running If normal AC voltage of each terminal is similar Phase U V AC voltage is measured 80V 190V Phase V W AC voltage is measured 80V 190V Phase W U AC voltage is measured 80V 190V at AC220V If abnormal The AC voltage is not measured from any one or two of Phase U V V W or W U Check the power TR module Check the other parts MEASURING METHOD of INVERT...

Page 34: ...amaged 6 Check whether the analytical is out 7 Check whether the normal discharge characteristics are obtained during the energized check of tester If it is good the needle rises but falls down slowly The needle comes back after the polari ty reversed 1 Put off the power 2 Discharge all of condenser completely 3 Remove 4 terminals connected to the diode block 4 Check whether the normal discharge c...

Page 35: ...tester for 6 transistors 5 If the power transistor module is defective check the parts of PC3 PC8 of control board out of inverter controller If the resistance between the 6 and 7 is a couple of Kohm it is defective PC 922 IC3 IC8 1 2 3 4 8 7 6 5 Base B Collector C Emitter E U V W EU EV EW EC Tester rod If it is good one resistance 10KΩ 500KΩ 400Ω 500Ω U V W BU BV BW BX BY BX Tester rod If it is g...

Page 36: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...

Page 37: ...LTER COVER TERMINAL ASS Y FRONT PANEL ASS Y FRONT PANEL ASS Y Display ASS Y TRAY DRAIN MOTOR STEPPING BLADE H ASS Y EVAPORATOR SPACER EVAP ASS Y HOLDER MOTOR TERMIANL BLOCK MOTOR FAN IN ASS Y C F FAN ASS Y BEARING ASS Y MAIN PCB ASS Y MAIN PCB ASS Y THERMISTOR ASS Y POWER CORD CASE CONTROL BUSH BODY ASS Y BACK BODY HOLDER PIPE PLATE HANGER Specification ABS PP CLEANER CARBON HIPS ABS ABS ASS Y ASS...

Page 38: ...Samsung Electronics 6 3 6 2 Outdoor Unit 26 27 24 25 ...

Page 39: ... OUT CASE CONTROL UP CASE CONTROL OUT CLOTH COMP BOTTOM CLOTH COMP SIDE CLOTH COMP SIDE CLOTH COMP UPPER COMPRESSOR COMPRESSOR GROMMET ISOLATOR NUT WASHER GASKET COVER TERMINAL THERMISTOR OLP NUT FLANGE ASS Y 4WAY VALVE ASS Y 4WAY VALVE ASS Y CHECKVALVE ASS Y CHECKVALVE ASS Y CONDENSER ASS Y CONDENSER THERMISTOR OUT CABI SIDE INSUL CABI SIDE HANDLE CABI RH CABLE CONNECTOR WIRE ASS Y FLARE NUT ASS ...

Page 40: ... 10790A PH M2 DB67 60061A DB67 60062A DB67 60063A 90 X 250 DB93 40179C DB61 40243A Description 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 BATTERY SPRING BATTERY PE BAG ASS Y PCB REMOCON HOLDER REMOCON Specification ABS ABS ABS ABS PC SILICON PC PC ART 90 ART 90 PH M2 SUS 304 SUS 304 SUS ...

Page 41: ... Parts List No 1 2 2 1 2 2 2 3 3 CODE NO DB61 10136A DB93 10593A DB09 10188A DE26 20154A DE32 10037A DB93 00021A Description CASE CONTROL Ass y main PCB Micom Trans power Fuse Ass y display Specification MB89635R AC230V DC17V 300mA 250V 3 15A Q TY AQV12F2VE AQV09F2VE 1 1 1 1 1 1 1 1 1 1 1 Remark ...

Page 42: ...6 7 Samsung Electronics 6 3 3 Ass y control Outdoor unit DB93 00022A UQV12A0TE Exploded Views and Parts List ...

Page 43: ...P TEMINAL BLOCK WIRE HOLDER ASS Y P C B OUT HEAT SINK CAPACITOR SCREW TAPPING SCREW TAPPING SCREW TAPPING SCREW MACHINE FUSE HOLDER FUSE C W ASS Y C W OUTDOOR TB C W PTR DRIVE C W AC FUSE C W REACTOR C W COMP DIODE RECT PTR MODULE R CEMENT CABLE TIE RUBBER CLAMP LABEL EARTH SCREW MACHINE Specification PP PP 3P 34 4 X 35 6 ABC BLK ASS Y AL A60635 T25 2200uF 400V PH M4 L25 TAP 2S 4 X 12 FE FZY PH M4...

Page 44: ...Samsung Electronics 7 1 7 PCB Diagrams 7 1 ASS Y PCB IN AQV12F2VE AQV09F2VE DB93 10593A AQV12F2VE DB93 10594A AQV09F2VE ...

Page 45: ...GU C FILM FILTER NOISE R CARBON R CARBON R CARBON WIRE SO COPER R CARBON R CARBON R CARBON R CARBON R CARBON R CARBON R CARBON R METAL FILM DIODE RECT THYRISTOR BUZZER TRANS L V PIN EYELET C CERAMIC C CERAMIC C CERAMIC C ELEC C ELEC C ELEC C ELEC IC MCU IC RSONATOR CERAMIC IC DRIVE TR GENERAL TRANSISTOR TRANSISTOR SWITCH TACT CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER CONNECTO...

Page 46: ...Samsung Electronics 7 3 7 2 ASS Y PCB OUT DB93 10604A UQV12A0TE UQV09A0TE ...

Page 47: ...60001A 2001 000591 2201 000318 DB29 90021A 0604 001117 Description THERMISTOR PTC VARISTOR C CERAMIC DISK C FILM MPEF C FILM MPEF C FILM MPPF REALY MINIATURE RELAY POWER TR SWITCHING DISCHARGER IC MCU IC VOLT REGU IC TRANS SWITCHING TRANS CURRENT COIL FILTER FUSE FUSE HOLDER TERMINAL DIODE SWITCHING DIODE RECTIFIER DIODE ZENER DIODE ZENER TR DIGITAL LED LED R CARBON R CARBON R CARBON R CARBON R CA...

Page 48: ...IRE CODE NO DB41 00002A 0601 000102 0601 001059 0601 001060 0601 001196 DB62 500278A 2202 000780 2001 000515 2201 000283 0401 000005 DB39 20587A DB61 10205A DB63 10494A DB72 10220F Specification FR Q T1 6 W2D L182 ROUND 3mm GRN SY5511 YEL SM5511 GRN SO5511 ORG PNA4612MOO X D CA OA 50V 104Z RD 1 8TP 221 J YWLA200 11P CA OA 50V 102Z 1N4148 UL1007 AWG 26 11 PC BLUE ABS BLK 30FOAM PE 6mm Q TY 1 8 1 4 ...

Page 49: ...Samsung Electronics 8 1 8 Wiring Diagrams 8 1 Indoor Unit ...

Page 50: ...Samsung Electronics 8 2 8 2 Outdoor Unit UQV12A0TE ...

Page 51: ... 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 SyncMaster 17GLi CMG7387L Service Manual First edition June 1995 Printed in Korea Trademarks Samsung is a registered trademark and SyncMaster 17GLi CMG7387L and MacMaster Cable Adapter are trademark of Samsun...

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