Samsung AQV12F2VE Service Manual
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Samsung AQV12F2VE Service Manual

Samsung AQV12F2VE Service Manual

Room air conditioner
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SERVICE
AIR CONDITIONER

ROOM AIR CONDITIONER

AQV12F2VE
UQV12A0TE
Manual
1. Pre c a u t i o n s
I n s t a l l a t i o n
5. Tro u b l e s h o o t i n g

CONTENTS

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Summary of Contents for Samsung AQV12F2VE

  • Page 1: Room Air Conditioner

    ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AQV12F2VE UQV12A0TE 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 2: Precaution

    9 . Keep children away from the unit while it is being re p a i re d . Fig. 1-3 No Kids Nearby! 1 0 . Be sure to clean the unit and its surro u n d- ing are a . Fig. 1-4 Clean the Unit Samsung Electronics...

  • Page 3: Product Specifications

    Outdoor unit : W x H x D 762x532x280 Weight Indoor unit Outdoor unit 44.0 Remark : Text condition Indoor room Outdoor room Cooling test DB27˚C / WB19˚C DB35˚C / WB24˚C Heating test DB20˚C / DB 7˚C / WB 6˚C Samsung Electronics...
  • Page 4 2-2 Dimensions 2-2-1 Indoor Unit (Remote control) (Front view) Air out Installation plate (Rear view) 2-2-1 Outdoor Unit (Front view) (Rear view) Samsung Electronics...

  • Page 5: Refrigerating Cycle Block Diagram

    2-3 Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT Capillary tube Check valve 2-way valve Liquid side Capillary tube Heat Heat exchanger exchanger (Evaporator) (Condenser) Gas side 3-way valve 4-way valve Cooling Heating Compressor Gas leak check point Samsung Electronics...

  • Page 6: Operating Instructions

    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 7 . De-ice end by sensing of the pro c e s s i n g time by de-ice Condition. Samsung Electronics...
  • Page 8 . self diagnosis on display pannel. * 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 power comes back. Samsung Electronics...
  • Page 9 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 10: Installation Diagram Of Indoor Unit And Outdoor Unit

    Cut the piping hole sloped slightly 7 8 9 Remote control Remote control holder Piping (Liquid) 1/4" Clamper tube 9K BTU Piping(Gas)3/8” Installation plate 12K BTU Piping(Gas)1/2” Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose Samsung Electronics...
  • Page 11 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 12 3. Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight. 4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above. Shield Drain hose Extension drain hose Samsung Electronics...
  • Page 13 Insert the drain plug into the drain hole on the underside of the outdoor unit. Connect the drain hose to the drain plug. E n s u re that the drained water runs off correctly and safely. Samsung Electronics...
  • Page 14 Caution : Burrs not removed may result in leakage of gas. Pipe Reamer Oblique Raughness Burr 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 Samsung Electronics...
  • Page 15 Liquid pipe side Gas pipe side 6. Open the 2-way valve and 3-way valve completely 2-way valve 3-way valve Outdoor Unit 7. Close the cap of each valve. 8. Check each valve for leakage. 3-10 Samsung Electronics...
  • Page 16 Charging line 7. Stop operation of the air conditioner. 8. Close the 3-way valve, disconnect the pressure gauge, and open the 3-way valve again. 9. Close the cap of each valve. 3-11 Samsung Electronics...
  • Page 17 (R-22) for every 1m. (R-22) for every 1m. 3-2-2(j) Flare unt fixing torque Torque (kg-cm) Outter diameter Fixing Torque Final Torque ø 6.35 (9000Btu, 12000Btu) (Liquid Side) ø 9.52 (9000Btu) (Gas Side) ø 12.7 (12000Btu) (Gas Side) 3-12 Samsung Electronics...
  • Page 18 At this time, cover the pipe of the indoor 8. Remove the mounting plate for the indoor unit and the other pipe using a cap or vinyl unit and move it to a new location. plug to avoid foreign material entering. 3-13 Samsung Electronics...

  • Page 19: Disassembly And Reassembly

    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 20 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 21 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 22: Outdoor Unit

    3) Loosen 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. Samsung Electronics...
  • Page 23 6) Loosen four fixing screws to separate the motor. Heat Exchanger 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. Samsung Electronics...
  • Page 24 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. Samsung Electronics...

  • Page 25: Troubleshooting

    • without control of remote # Auto restart function is the convenient function where the operation state is memorized in controller when plugged the Memory IC during the blackout and the operation restarts when the power comes back. Samsung Electronics...
  • Page 26 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. L A M P Refrigerant Refill operation (test operation) (Lamp status) : Lamp flickering X : Lamp off Samsung Electronics...
  • Page 27 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 sensor (defrost tem- perature sensor) (open/short) (LAMP : LAMP ON : LAMP FLICKERING : LAMP OFF Samsung Electronics...
  • Page 28 ), Turbo( ) lamp -> Check of the instantaneous over-current protection flickering mode of inverter circuit (M) Fan( ), Turbo lamp( ) flickering -> Check the abnormal increase of the comp top and discharge gas temperature protection mode.(N) Samsung Electronics...
  • Page 29 Ambient temperature 20°C 25°C 30°C 35°C 40°C 15°C (°C) The error of data of within 1%. Resistance of 6.94 5.83 14.68 12.09 8.31 thermistor [KΩ] Samsung Electronics...
  • Page 30 -> If the red lamp (LED 3) is not on, check the power part of control board of outdoor unit. ♦Check the connection of re a c t o r, polarity of C-ELEC (2200µF/400V) and connection of two diode - bridge. -> If the red lamp (LED3) is on and green lamp is flickering, it is normal. Samsung Electronics...
  • Page 31 ♦The air circulation is bad due to the attachment of falling leaves -> Take away the leaves for the good ventilation. Check the elements of current sensor block of the outdoor control board . ♦R801 — 1 KΩ ♦R802 — 1.5 KΩ ♦R803 — 15 KΩ Samsung Electronics...
  • Page 32 ♦The air circulation is bad due to the attachment of falling leaves -> Take away the leaves for the good ventilation. ♦If the refrigerant is insufficient. -> Fill up the amount of re f r i g e r a n t . Samsung Electronics...
  • Page 33 •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 INVERTER CONTROLLER Samsung Electronics...
  • Page 34 3. Remove 4 terminals connected to the diode block. 4. Check whether the normal discharge characteristics are obtained during the energized check of tester. Tester rod If it is good one, the resistance •When the tester rod is reversed : 10-20 ohm. ∞ 5-10 Samsung Electronics...
  • Page 35 PC 922 out of inverter controller. (IC3~IC8) Tester rod If it is good one resistance ( + ) ( - ) ∞ If the resistance between the 6 and 7 is a couple of Kohm, it is defective. 5-11 Samsung Electronics...

  • Page 36: Exploded Views And Parts List

    6. Exploded Views and Parts List 6-1 Indoor Unit Samsung Electronics...
  • Page 37 Exploded Views and Parts List Parts List Q’TY Specification Remark CODE NO Description AQV12F2VE AQV09F2VE DB64-10179A GRILLE AIR INLET DB63-30131A GUARD-AIR FILTER DB74-10091A ASS’Y-FILTER ( 1 ) ( 1 ) CLEANER/CARBON OPTION DB63-10427B COVER-TERMINAL HIPS DB92-00012A ASS’Y-FRONT PANEL ASS’Y-FRONT PANEL DB93-00021A ASS’Y-Display...
  • Page 38 6-2 Outdoor Unit Samsung Electronics...
  • Page 39 ASS’Y-CONDENSER ASS’Y 21-1 DB32-10019C THERMISTOR-OUT ASS’Y DB64-60136B CABI-SIDE SECC-P 22-1 DB72-00032A INSUL-CABI SIDE EVA+PO-PE DB67-90025A HANDLE-CABI RH DB39-00031A CABLE-CONNECTOR WIRE 12A, 4C DB99-90033C ASS’Y-FLARE NUT 1/4” + 2/1” DB99-90033D ASS’Y-FLARE NUT 1/4” + 3/8” DB67-20008A DRAIN-PLUG DB73-20026B RUBBER-LEG Samsung Electronics...
  • Page 40 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 X 250 PE BAG 90 x 250 DB93-40179C ASS’Y PCB REMOCON DB61-40243A HOLDER REMOCON Samsung Electronics...
  • Page 41 Exploded Views and Parts List 6-3-2 PCB Box (Indoor unit) Parts List Q’TY CODE NO Description Specification Remark AQV12F2VE AQV09F2VE DB61-10136A CASE-CONTROL DB93-10593A Ass'y main PCB DB09-10188A Micom MB89635R DE26-20154A Trans-power AC230V DC17V 300mA DE32-10037A Fuse 250V 3.15A DB93-00021A Ass'y-display...
  • Page 42 Exploded Views and Parts List 6-3-3 Ass’y control (Outdoor unit) ( DB93-00022A : UQV12A0TE) Samsung Electronics...
  • Page 43 3601-000438 FUSE 65TS-150-H, 250V, 15A DB39-00010A C/W REACTOR UL1015 DB39-00009A C/W COMP UL1015 DB47-90069A DIODE-RECT S25VB60, 600V DB47-90066A PTR MODULE 6DI 20C-050 2006-001013 R-CEMENT 20mΩ, 20W DB65-10088B CABLE-TIE 140mm, WHT DB73-20126B RUBBER-CLAMP DB68-10700A LABEL-EARTH TETRON SCREW-MACHINE TH, M4X20 Samsung Electronics...

  • Page 44: Pcb Diagrams

    7. PCB Diagrams 7-1 ASS’Y PCB - IN AQV12F2VE, AQV09F2VE D B 9 3 - 1 0 5 9 3 A A Q V 1 2 F 2 V E D B 9 3 - 1 0 5 9 4 A...

  • Page 45: Samsung Electronics

    PCB Diagrams PART LIST Description AQV12F2VE AQV09F2VE DESIGN LOCATION CODE NO Specification F701 DE32-10037A FUSE FST 250V 3.15A F701 DE47-40024A HOLDER-FUSE FH-51H 7.5A IC01 DE13-20008A IC-VOLT REGU KA7812A IC01 DE62-30032A HEAT-SINK AL H25 IC01 DE60-10100A SCREW-PH M3*6 FeFzY IC02 DE13-10016A...
  • Page 46 7-2 ASS’Y PCB - OUT D B 9 3 - 1 0 6 0 4 A U Q V 1 2 A 0 T E U Q V 0 9 A 0 T E Samsung Electronics...

  • Page 47: Samsung Electronics

    C-CERAMIC, DISC 102K IGBT SGH80N60UFD NF902 DB29-90021A COIL-FILTER 220VAC 13A NF903 COIL-FILTER LSA10024 CN12 CONNETOR WAFER MG640598 IC-VOLT REGU KA7815A 0604-001117 IC-DRIVE IC HCPL-3150 R217~R222 R-CEMENT 2.6KΩ-J,5W C123 C-AL 220µF/25V C119 C-AL 220µF/50V R118 R-METAL OXIDE RS 5.1Ω-2W Samsung Electronics...
  • Page 48 7-3 ASS’Y DISPLAY DB93-00021A : AQV12F2VE, AQV09F2VE PART UST CODE-NO Description Specification Q’TY DB41-00002A PCB-DISPLAY FR-Q T1.6 W2D L182 0601-000102 LED-LAMP ROUND, 3mm, GRN 0601-001059 LED-LAMP SY5511 (YEL) 0601-001060 LED-LAMP SM5511 (GRN) 0601-001196 LED-LAMP SO5511 (ORG) DB62-500278A MODULE REMOCON PNA4612MOO X D...

  • Page 49: Wiring Diagrams

    8. Wiring Diagrams 8-1 Indoor Unit Samsung Electronics...
  • Page 50 8-2 Outdoor Unit UQV12A0TE Samsung Electronics...
  • Page 51 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 MacMaster All rights reserved. Cable Adapter are trademark of Samsung This manual may not, in whole or in part, be Electronics Co., Ltd.

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