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Gree GWC18KG-K3DNA5A Service Manual Download Page 23

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fan capacitor

PG motor terminal

protective

tube

piezoresistor

health relay K3

auxiliary relay K1, K2

jumper cap

up&down swing 

terminal

PG feedback 

terminal

ambient temp-
erature sensor

terminal

tube temperature
sensor terminal 

connect the terminal of diaplay 
board DISP1, DISP2

high-frequency

transformer T1

rectifier DB1

filter SF2022A-05220

supply power for 
outdoor unit's 

control relay K4 

connect to the copper
pin of communication 
line of outdoor unit 

neutral line connects 
the terminal of 
copper  pin 

20

Summary of Contents for GWC18KG-K3DNA5A

Page 1: ...al MODEL GWC18KG K3DNA5A GWC18KG K3DNA6A GWH18KG K3DNA5A GWH18KG K3DNA5B GWH18KG K3DNA6A GWH18KG K3DNA6B GWH18KG K3DNA9B GWC24KG K3DNA5A GWC24KG K3DNA6A GWH24KG K3DNA5A GWH24KG K3DNA5B GWH24KG K3DNA6A...

Page 2: ...13 Part 3 Construction Views 3 1 Indoor Unit 3 2 Outdoor Unit 5 1 Electrical Data 5 2 Electrical wiring 5 3 Printed Circuit Board 6 1 Remote Controller Description 6 2 Changing batteries and notices...

Page 3: ...and Primary Judgement 9 4 How to Check simply the main part 9 5 2 way 3 way Valve Appearance 10 1 Removal Procedure of Indoor Unit 10 2 Removal Procedure of Outdoor Unit 7 1 Tools Required for Install...

Page 4: ...NA6A I GWH24KG K3DNA5A I GWH24KG K3DNA5B I GWH24KG K3DNA6A I GWH24KG K3DNA6B I GWH24KG K3DNA9B I Outdoor Unit GWC18KG K3DNA5A O GWH18KG K3DNA5A O GWH18KG K3DNA5B O GWC24KG K3DNA5A O GWH24KG K3DNA5A O...

Page 5: ...QR DFFXPXODWLRQ RI VQRZ OHDYHV RU UXEELVK 7KH XQLW VKRXOG EH LQVWDOOHG DFFRUGLQJ WR WKH LQVWUXFWLRQV LQ RUGHU WR PLQLPL H WKH ULVN RI GDPDJH IURP HDUWKTXDNHV W SKRRQV RU VWURQJ ZLQGV KHQ WKH UHIULJHUD...

Page 6: ...Motor Capacitor F 1 5 1 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter mm 7 7 Row fin Gap mm 2 1 4 2 1 4 Coil Length LXDXW mm 657X25 4X304 8 657X25...

Page 7: ...or Capacitor F 3 5 3 5 Air Flow Volume of Outdoor Unit m3 h 3200 3200 Fan Type Axial flow Axial flow Fan Diameter mm 520 520 Defrosting Method Auto defrost Climate Type T1 T1 Isolation I I Moisture Pr...

Page 8: ...essure Level SH H M L SL dB A Sound Power Level SH H M L SL dB A Dimension WXHXD mm Dimension of Carton Box L W H mm Dimension of Package L W H mm Net Weight kg Gross Weight kg 12 16 220 240 50 1 Indo...

Page 9: ...ing Pressure for the Suction Side MPa Sound Pressure Level H M L dB A Sound Power Level H M L dB A Dimension WXHXD mm Dimension of Carton Box L W H mm Dimension of Package L W H mm Net Weight kg Gross...

Page 10: ...W 35 35 Fan Motor RLA A 0 31 0 31 Fan Motor Capacitor F 2 5 2 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter mm 7 7 Row fin Gap mm 2 1 5 2 1 5 Coi...

Page 11: ...8 0 58 Fan Motor Capacitor F 3 5 3 5 Air Flow Volume of Outdoor Unit m3 h 3200 3200 Fan Type Axial flow Axial flow Fan Diameter mm 520 520 Defrosting Method Auto defrost Climate Type T1 T1 Isolation I...

Page 12: ...und Pressure Level SH H M L SL dB A Sound Power Level SH H M L SL dB A Dimension WXHXD mm Dimension of Carton Box L W H mm Dimension of Package L W H mm Net Weight kg Gross Weight kg 1076X398X328 15 2...

Page 13: ...Pressure for the Suction Side MPa Sound Pressure Level H M L dB A Sound Power Level H M L dB A Dimension WXHXD mm Dimension of Carton Box L W H mm Dimension of Package L W H mm Net Weight kg Gross Wei...

Page 14: ...Heating 32 33 34 35 36 37 38 39 43 15 10 5 0 5 7 10 40 41 42 100 105 95 90 85 80 75 70 65 60 55 50 Outdoor temp C Capacity ratio 110 100 90 80 70 60 50 40 Outdoor temp C Capacity ratio Conditions Ind...

Page 15: ...18KG K3DNA5B GWH18KG K3DNA6B GWH18KG K3DNA9B GWH24KG K3DNA5B GWH24KG K3DNA6B GWH24KG K3DNA9B Cooling Heating Standard pressure Indoor Outdoor P MPa T1 C T2 C 18K 0 9 to 1 1 12 to 14 70 to 40 Super Hig...

Page 16: ...curve tables for both models 50 40 30 Indoor side noise when blowing Indoor fan motor rotating speed Low Middle High Noise dB A 40 42 44 46 48 50 52 54 20 40 30 50 60 70 80 90 Compressor frequency Hz...

Page 17: ...on Views 3 1 Indoor Unit ON OFF 55 55 124 100 50 50 319 1008 865 540 150 40 55 55 298 40 175 193 685 130 W H D Model W H D 18K 865 305 215 24K 1008 319 221 Over 15mm Over 15mm Over 15mm 18K Wall Mount...

Page 18: ...15 Constrction views 3 2 Outdoor Unit 891 341 Over 30cm Over 50cm O ver 30cm Over 200cm 955 396 700 560 364 Bolt Nut Wrench Over 50cm...

Page 19: ...EATING Accumlator Discharge Suction Muffler 4 Way valve Capillary Strainer Strainer Refrigerant pipe diameter Liquid 1 4 6 mm Gas 1 2 12 mm INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHA...

Page 20: ...R HEAT EXCHANGE CONDENSER COMPRESSOR GAS SIDE 3 WAY VALVE LIQUID SIDE 2 WAY VALVE COOLING Accumlator Discharge Suction Muffler Strainer Strainer Expansion valve INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE...

Page 21: ...4YEGN COM OUT N 0 AP1 TUBE SWING TEM SENSOR DISP2 JUMP YEGN PE PE AP2 TUBE ROOM TEM SENSOR CAP EVAPORATOR BU BK BN EARTH PLATE L L RT1 RT2 M1 BLOCK TERMINAL 1BU N 1 2 XT 3 3BN 2BK ROOM M2 L OUT AC L...

Page 22: ...T 4WH 5WH OVC COMP OFAN PE 3RD 2BU 1YE 4V RT3 RT2 RT1 COM INNER 1 PE PE E C T U RD YE BU N 1 2 3 XT AP1 BK BN PE BU YEGN N AC L 6YEGN T SENSOR VALVE S W X R M V 0 0 0 WH BK INDOOR UNIT M TEM SENSOR EX...

Page 23: ...n swing terminal PG feedback terminal ambient temp erature sensor terminal tube temperature sensor terminal connect the terminal of diaplay board DISP1 DISP2 high frequency transformer T1 rectifier DB...

Page 24: ...21 Schematic Diagram BOTTOM VIEW...

Page 25: ...K1 K2 CT1 FU1 C54 T1 CN5 D21 CN9 C222 D25 D24 L4 C219 WH INDC1 D 2 3 C221 U19 R69 U12 D3 C25 Q3 U15 K4 CN102 2 J1 1 C65 C64 C216 C63 U6 C13 C118 R131 U14 U21 U2 C224 C223 D27 D26 C225 14 13 Y1 C62 C7...

Page 26: ...R78 U8 R116 R3 C9 C8 R4 R76 C36 C29 C30 D14 R79 R73 Q1 D4 C23 Q9 R123 R125 R71 R114 D17 C42 C37 C370 D290 D31 R11 Q5 Q6 C39 C35 R74 R72 C40 D32 U9 R36 R129 R21 R121 POWER C21 D8 C51 C52 D7 C49 C50 R8...

Page 27: ...s no interface for AC motor 6 Outdoor fan It s used for connecting the FAN MOTOR 7 Four way valve It s used for connecting four way valve YV 8 Communication interface for indoor unit Communication wir...

Page 28: ...LTH SAVE page 16 Press it to set up down swing angle TIMER X FAN page 17 TEMP page 17 TURBO page 17 SLEEP page 17 LIGHT Press it to set fan speed Press it set auto on timer auto off timer 1 2 Press it...

Page 29: ...remote controller defaults to simple swing condition Press button and button at the same time at unit OFF to switch between simple swing and static swing blinking 2 seconds In static swing condition...

Page 30: ...ing HOUR ON OFF stopping blink If there is not any operation of button within 5 seconds during HOUR ON OFF blinking TIMER setting will be canceled X FAN TEMP TIMER TURBO 9 10 11 If the unit is turned...

Page 31: ...frosting H1 is displayed in dual 8 4 In normal situation the setting temperature is displayed in dual 8 place 5 When the signal of displaying indoor temperature or outdoor tempera ture is received fro...

Page 32: ...pped after operating for 60s at setting speed b Due to the blockage of PG motor horizontal louver will keep the stop position when the unit is turned off In other modes When the unit is stopped due to...

Page 33: ...emperature all the time 3 When the initial temperature is set as 28 29 after starting up the sleep function the temperature will increase by1 every one hour After the temperature has increased by 1 th...

Page 34: ...me has reached the system will act as timer on off setting before power failure After power failure the system memorizes the operation states before power failure without timer action Clock timer can...

Page 35: ...again without delay 7 Outdoor Fan Control 1 When the unit is off by remote control in safety stops and stop after reaching to the temperature point 2 In fan mode The outdoor fan stops 3 Start to defro...

Page 36: ...cation malfunction resume and compressor has stopped for 3min the unit will resume running 15 IPM module protection When the compressor starts if there is overcurrent or control voltage low for IPM mo...

Page 37: ...unit 3 Select a location where the children can not reach 4 Can select the place where is strong enough to withstand the full weight and vibration of the unit And will not increase the noise 5 Be sur...

Page 38: ...ng caulk pipe hole gap with putty 3 1 Flaring work Flaring work Main cause for refrigerant leakage is due to defect in theflaring work Carry out correct flaring work using the follow ing procedure Cut...

Page 39: ...nto the drain port mak ing sure that it comes in contact with the back of the drain port and then mount it If the drain hose is not connected properly leaking will occur Attach the Insulation Drain ho...

Page 40: ...with pliers etc For left outlet piping cut off the piping outlet cutting groove with a hacksaw CAUTION 1 In order to align the drain hose and drain cap be sure to insert securely and vertically Incli...

Page 41: ...om up at the specified places 4 Run the drain hose at a downward sloped angle 5 Put water in the drain pan and make sure that the water is being drained outside Caution Install the drain pipe for prop...

Page 42: ...evention For R410A only Packed valve at liquid side Packed valve at gas side Service port Valve core Setting pin Connecting pipe Handle Lo Charge hose For R410A only 101kPa 76cmHg Vacuum pump 1 Strip...

Page 43: ...Exploded Views and Parts list 8 Exploded Views and Parts List 8 1 Exploded View Indoor Unit 1 18K 1 2 3 4 5 6 7 8 10 9 12 11 13 14 15 20 21 22 30 24 27 28 31 33 34 35 26 17 18 19 23 37 36 16 25 32 38...

Page 44: ...41 Exploded Views and Parts list 37 36 35 14 12 11 10 13 8 28 29 24 16 25 9 15 17 18 19 6 22 23 5 27 3 4 2 1 20 21 7 30 32 33 26 31 34 2 24K...

Page 45: ...42 Exploded Views and Parts list 1 8 7 6 5 4 3 2 1 36 35 33 9 10 18 22 23 24 30 31 32 29 28 27 26 25 20 17 16 15 14 13 12 11 21 19 1 34 1 18K Cooling Only Outdoor Unit...

Page 46: ...43 Exploded Views and Parts list 2 18K Heat Pump 1 8 7 6 5 4 3 2 1 38 37 35 34 9 10 18 22 23 24 30 31 32 33 29 28 27 26 25 20 17 16 15 14 13 12 11 21 19 1 36...

Page 47: ...44 Exploded Views and Parts list 1 8 7 6 5 4 3 2 1 37 36 34 9 10 18 22 23 24 25 31 32 33 30 29 28 27 26 20 17 16 15 14 13 12 11 21 19 1 35 3 24K Cooling Only...

Page 48: ...45 Exploded Views and Parts list 1 8 7 6 5 4 3 2 1 39 38 36 35 9 10 18 22 23 24 25 31 32 33 34 30 29 28 27 26 20 17 16 15 14 13 12 11 21 19 1 37 4 24K Heat Pump...

Page 49: ...36 10352036 10352036 1 17 Motor Press Plate 26112231 26112231 26112231 1 18 Fan Motor 15012116 15012116 15012116 1 19 Pipe Clamp 26112164 26112164 26112164 1 20 Drainage hose 0523001407 0523001407 052...

Page 50: ...52036 1 17 Motor Press Plate 26112231 26112231 26112231 1 18 Fan Motor 15012116 15012116 15012116 1 19 Pipe Clamp 26112164 26112164 26112164 1 20 Drainage hose 0523001407 0523001407 0523001407 1 21 St...

Page 51: ...Box 1 25 Axile Bush 1 26 Indicator Light Cover 1 27 Indicator shield cover 1 28 Terminal Board 1 29 Jumper 1 30 Electric Box Cover2 1 31 Main Board 1 32 Display Board 1 33 Shield Cover of Electric box...

Page 52: ...112184 26112184 1 17 Fan Motor 15012098 15012098 15012098 1 18 Pipe Clamp 26112188 26112188 26112188 1 19 Drainage hose 0523001405 0523001405 0523001405 1 20 Step Motor 1521300101 1521300101 152130010...

Page 53: ...84 26112184 26112184 1 17 Fan Motor 15012098 15012098 15012098 1 18 Pipe Clamp 26112188 26112188 26112188 1 19 Drainage hose 0523001405 0523001405 0523001405 1 20 Step Motor 1521300101 1521300101 1521...

Page 54: ...25 Terminal Board 1 26 Main Board 1 27 Electric Box Cover2 1 28 Shield Cover of Electric box Cover 1 29 Electric Box Cover 1 30 Indicator shield cover 1 31 Indicator Light Cover 1 32 Display Board 1...

Page 55: ...43130021 1 16 Clapboard Sub Assy 01232902 1 17 Condenser Assy 01113590 1 18 Rear Grill 01473043 1 19 Wiring clamp 26115004 1 20 Temperature Sensor 3900030901 1 21 Capacitor CBB65 33000065 1 22 Capacit...

Page 56: ...sy 01113530 01113635 1 18 Rear Grill 01473043 01473043 1 19 Wiring clamp 26115004 26115004 1 20 Temperature Sensor 3900030901 3900030901 1 21 Capacitor CBB65 33000065 33000065 1 22 Capacitor Clamp sub...

Page 57: ...902 1 17 Condenser Assy 0111338601 1 18 Rear Grill 01473043 1 19 Wiring clamp 26115004 1 20 Temperature Sensor 3900030901 1 21 Capacitor CBB65 33000065 1 22 Capacitor Clamp sub assy 01413098 1 23 Elec...

Page 58: ...ear Grill 01473043 01473043 1 19 Wiring clamp 26115004 26115004 1 20 Temperature Sensor 3900030901 3900030901 1 21 Capacitor CBB65 33000065 33000065 1 22 Capacitor Clamp sub assy 01413098 01413098 1 2...

Page 59: ...e circuit board is to be replaced place the circuit board assembly in a vertical position Normally diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check...

Page 60: ...nfirmation 1 Confirmation of Power Supply Confirm that the power breaker operates ON normally 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 230 240 10 If power voltage is not in...

Page 61: ...function analysis 6 High temperature resistant protection E8 OFF 3S and blink 8 times During cooling operation compressor will stop while indoor fan will operate During heating operation the complete...

Page 62: ...d high temperature resistant 16 Decrease frequency due to overcurrent F8 OFF 3S and blink 8 times All loads operate normally while operation frequency for compressor is decreased The input supply volt...

Page 63: ...ng heating operation the complete unit will stop operation Refer to the malfunction analysis 27 Desynchronizing of compressor H7 OFF 3S and blink 7 times During cooling and drying operation compressor...

Page 64: ...blink 21 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop 1 Measure the voltage of position L and N on...

Page 65: ...62 Troubleshooting 9 4 How to Check simply the main part 1 Temperature sensor malfunction...

Page 66: ...yes no Insert the control end of PG motor tightly no Eliminate the malfunction no Pull the blade by hand to see whether the blade can rotate smoothly Re assemble the blade and motor correctly Elimina...

Page 67: ...ap with the same model End no yes Please install the correct jumper cap yes Eliminate the malfunction no yes Insert the jumper cap tightly Eliminate the malfunction no no yes Eliminate the malfunction...

Page 68: ...65 Troubleshooting Test Test 2 Test 3 Test 4 Test 5 Test 6 Test 7 Tset 8 Test 9 GND Test 10 C A B D E F G H I J K L M Test 11 N O P QR Test 16 Test12 Test13 Test14 Test15 S T 1 Key detection point...

Page 69: ...city C58 C58 5V power supply 5VDC Test 8 Two terminal of flaky capacity C83 C83 3 3V power supply 3 3VDC Test 9 Two terminal of flaky capacity C80 C80 17V power supply 15 18VDC Test 10 M forward to GN...

Page 70: ...w is control board of outdoor unit Main detection point Detect if the voltage of L and N terminal of wiring board is between 210AC 240AC by alternating voltage meter Is reactor L well connected Is con...

Page 71: ...well connected If they are loosened If the connection sequence is correct z Is voltage input in the normal range Test the voltage between L N of wiring board XT by DC voltage meter z If coil resistan...

Page 72: ...69 Troubleshooting...

Page 73: ...if fan terminal OFAN is connected well 2 Test if resistance value of any two terminals is less than 1k with ohmic meter If the outdoor fan work well After the unit de energized for 20min Replace cont...

Page 74: ...UVW is well connected and connection sequence is correct Replace control board AP1 Replace the compressor If malfunction is removed If the stop time of compressor is more than 3min Finish N If the sto...

Page 75: ...lly If the stop time of compressor is more than 3min finish Synchronism after energize the unit and start it Connect wire well Synchronism occurred during operation Replace control board AP1 If the ra...

Page 76: ...oil of electron expansion valve If the wiring terminal FA of electron expansion is well connected Remove mulfunction The resistance value of first 4 lead foot and the fifth lead foot is similar small...

Page 77: ...is short circuit and replace it Y Re energize the unit and start it Cut the terminal of reactor test the resistance between two terminals of reactor with ohmic meter Replace the reactor Re energize t...

Page 78: ...ommunication circuit of outdoor unit Problem of communication circuit Check built in wiring of indoor and outdoor unit Connection correct Malfunction of circuit is detected with control board AP1 volt...

Page 79: ...ng Outdoor unit malfunction Test voltage value with Test 15 position in diagram with voltage meter Number jumping Test voltage value with Test 11 position in diagram with voltage meter Number jumping...

Page 80: ...7URXEOHVKRRWLQJ N N N N Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units Temp Temp Temp Temp Resistance Resistance Resistance Resistance 77...

Page 81: ...7URXEOHVKRRWLQJ N N N N Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors Temp Temp Temp Temp Resistance Resistance Resistance Resistance 78...

Page 82: ...7URXEOHVKRRWLQJ N N N N Appendix 3 Resistance Table of Outdoor Discharge Temperature Sensor Temp Temp Temp Temp Resistance Resistance Resistance Resistance 79...

Page 83: ...e p O n e p O n e p O with charging cylinder n e p O n e p O n e p O with charging cylinder n e p O n e p O n e p O n e p O Works Shipping Air purging Installation Operation Pumping down Transfering...

Page 84: ...cmHg 5 Close the low pressure valve handle of gauge manifold Check the flare connections for gas leakage 6 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 7 Set the 3 way val...

Page 85: ...e port of the 3 way valve Connect the charge hose with the push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the ch...

Page 86: ...nds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leak...

Page 87: ...discharge the refrigerant until the gauge indi cates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G discharge the...

Page 88: ...acuum of 4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump...

Page 89: ...h time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect...

Page 90: ...ilters If ON OFF button is kept pushing for 5 seconds aforced cooling op eration willbe carried out for approx 15minutes Pull protrusions on left and right sides of panel with fingers and open front g...

Page 91: ...orward 1 Left and right filters are interchangeable To re install insert air filter along the guide Remove horizontal blade by pulling forward 2 And pull out the front panel forward to remove Hook a f...

Page 92: ...W WKHUH DUH KRRNV LQ WKH OHIW DQG WKH ULJKW 5HPRYH WKH 5 VFUHZV LQ WKH ULJKW DQG WKH OHIW ZKLFK WKH PDLQ ERG ZLWK WKH IURQW JULOOH LVHQJDJH WKH KRRNV E SUHVVLQJ NQREV ZLWK D VFUHZGULYHU LVHQJDJH WKH K...

Page 93: ...s 2 Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness same as the existing models Terminal board Connecting wires Heat exchanger thermist...

Page 94: ...piping fixture Remove Pipe Clamp 1 Loosen the screws in the right and the left which fix the Evaporator Assy Remove Evaporator Assy 2 Auxiliary piping Piping fixture 3 Auxiliary piping Heat exchanger...

Page 95: ...re 10 Remove Cross Flow Fan Fan Motor 1 Twist off the screws fixing the pressure plate of motor and then remove the motor and the blade pressure plate of motor Remove shaft cushion rubber base shaft c...

Page 96: ...es or more after turning off all power supplies before disassembling work Handle Top panel Twist off the screws used for fixing the handle pull the handle upward to remove it Remove top cover and hand...

Page 97: ...the panel Twist off the screws fixing the panel pull it upward loosen the clasp on the right side rotate it to the left and then remove the panel Remove right side plate Twist off the screws fixing th...

Page 98: ...o the bottom frame with a hook Electrical box fire proofing 2 Twist off the two screws fixing the electric box cover with screwdriver pull it upward and then remove the electric box cover Twist off th...

Page 99: ...nd blanket are torn easily remove the blanket carefully Sound blanket Lift and remove the sound blanket body as it is opened 4 Pull the sound blanket inner out Since the piping ports on the sound blan...

Page 100: ...on Caution Be careful about the four way valve pipes and so on which were heated up by a gas brazing machine so as not to get burnt your hands 2 3 4 way Valve Unsolder the weld spot between the four w...

Page 101: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add Jinji west Rd Qianshan Zhuhai Guangdong China Post code 519070 Tel 86 756 8522219 After sale Service Dept...

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