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SYSTEM AIR CONDITIONER

1. High Pressure Switch 1 EVI Out Sensor EVI In Sensor Insu Code Binding Wire AMO96FXVAFH AM120FXVAFH AM144FXVAXH AMO96FXVAFH AM120FXVAFH AM144FXVAXH AMO96FXVAFH AM120FXVAHH AM144FXVAXH DB62 03808E AMO96FXVAFH AM120FXVAFH D AM144FXVAXH DB62 03808C DB62 04154B DB62 03808D 3 26 Samsung Electronics Disassembly and Reassembly Binding Wire 2 ll AMO96FXVAFR AM120FXVAFR AM144FXVA gt XR VALVE 8 SENSOR Discharge 2 Sensor INSULATION Model Insu Code Binding Wire AMO96F XVAFR AM120FXVAFR AMI144FXVAKR DB62 03808A AMO96FXVAFR AM120FXVAFR AMO96FXVAFR AM120FXVAFR poe2 03808C AM144FXVA KR AMO96F XVAFR AM120FXVAFR AM144FXVA gt R DB62 03808D VALVE 8 SENSOR Valve 8 Sensor Cond Out Sensor Outdoor Temperature Sensor INSULATION Model Insu Code Binding Wire ED AMO96FXVAFR AM120FXVAFR AM144FXVA KR DB62 04154 AMO96FXVAFR AM120FXVAFR AM144FXVACKR DB62 04154C Samsung Electronics 27 Disassembly and Reassembly Binding Wire 1 MI AMO96FXVAFR AM120FXVAFR AM144FXVAXR VALVE 8 SENSOR Valve amp Sensor AWAY Valve High Pressure Sensor Suciton 1 Sensor Suciton
2. 4 20 4 3 7 Internal PCB Communication error of the Outdoor Unit C Box 4 21 4 3 8 MCU branch part setup error inconsecutive connection with the use of 2 branch parts 4 23 4 3 9 MCU branch part setup error Repeated setup for the same address over 3 times 4 24 4 3 10 MCU branch part setup error non installed address setup 4 25 4 3 11 Setup Error for MCU Branch part Setup Error for MCU Quantity Used 4 26 Contents 4 3 12 MCUMCU branch part setup error Overlapping Indoor unit Address setup 4 27 4 3 13 MCU branch part setup error Set as being used without connection to an Indoor unit 4 28 4 3 14 MCU branch part setup error Connect an Indoor unit to a branch part not being used 4 29 4 3 15 MCU branch part setup error Connect more Indoor units than what is actually set up in A s n 4 30 4 3 16 MCU subcooler entrance exit sensor error Open Short 4 31 4 3 17 Outdoor Temperature Sensor Error 4 32 4 3 18 Cond Out Temperature Sensor Error Open Short 4 33 4 3 19 Outdoor Cond Out sensor breakaway 2
3. MOJ pe 6 r n oa Bs LOSS I id a 7 9 7 13 Cycle Component Function Explanation 9 20 21 22 23 Accumulator Separating the incoming liquid refrigerant to the compressor in order to prevent liquid refrigerant Oil Separator Separating the oil from the refrigerant discharged from the compressor and the separated oil is returned to the compressor Intercooler Supercooled liquid refrigerant through the heat exchanger and makes the medium pressure gas refrigerant injected into the compressor IPM Cooler IPM Intelligent Power Module by cooling to prevent overheating High Low Pressure Sensor Measure high low Pressure of system High Pressure Switch Suspend immediately for protection of system if high pressure of system exceeds setting value Outdoor EEV Main EEV Adjust the incoming refrigerant to the outdoor heat exchanger during heating operation EVI EEV By adjusting the amount of refrigerant passing through the Subcooler to obtain the degree of supercooling and adjust the amount of gas refrigerant entering to the compressor 4Way Valve Change the direction of flow of the refrigerant to the cooling heating operation ARV Accumulator Oil Return Valve Remaining at the bottom of the Accumulator recovered oil to the compressor MainCooling Valve In the main cooling
4. Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks E 0110 Disabled Factory default mergency operation for Individual 0 0 011 Sat i ancien cial E560 will occur when all the compressors are set as compressor malfunction malfunction state 0 2 Set compressor 2 as malfunction state 0 0 7 9 Factory default 071 5 7 Capacity correction for 0 2 9 11 Targeted evaporation temperature PC cooling Main 0 11013 10 12 When low temperature value is set discharged air 0 4 11 13 temperature of the indoor unit will decrease 0 5 12 14 0 6 13 15 0 0 3 0 Factory default 0 1 25 012 26 Capcity correction for 0 3 2 7 Targeted high pressure MPa heating Main 0121710 4 28 When low pressure value is set discharged air temperature 015 29 ofthe indoor unit will decrease 016 34 0 7 32 018 3 3 0 0 100 Factory default 011 05 00 0 2 90 013 85 00 014 80 90 SS Current restriction rate Individual 0 3 m Wl 127 neaug 0 7 65 94 018 60 96 019 55 96 110 50 96 1 1 No restriction Oil collection interval Main 0 4 12 o MEINE NCE DY 1 52 jg Temperature to trigger NE 37 def Main 0 5 Apply setting when the product is being installed efrost operation 0 1 in humid area such as near river or lake Fan speed correction for individual 0 6 0 0 Factory default outdoor unit 011 ncrease fan speed Increase the outdoor unit
5. UD pinbi ainssaid 7g aunjesadwa M07 seb aunssaid X eunyejeduua1 MO Sese K Se ES EE E 7 5 H R 4 ion ing operat 9 Heat 7 Jado bureau ule soo T oo o oo esso tue pinbi aunssaid 79 UD H seb e1nsseJd X UD pinbi eunssaud 7 MOT seb eJnssaJd 79 aunjeuadwa mol OCC He a 122 A A 7 6 7 10 Main heating operation H R seo To oT ssT e Y 09 HN T T T IL ES IE BE pinbi eanssaJd 9 UDIH seb ainssaid X aunjesadwa ybiH pinbi aunssaud 79 M07 seb eJnssaJd X aunjeuadwa mo j gt z ala e W i 2 SS K k KC gei E See Lo A UE D AA nen H 7 Wi 181 time yr 7 11 Cooling operation H P pinbi aunssaud 7 UDIH seb e1nsseJd X eJnje1aduua1 UD MH pinbi aunssaud 79 aunyesadwa mo seb eJnssaJd 79 MOJ 7 8 12 Heating operation H P 7 T 00 oo J Uone bueh o S pinbi aunssad 79 UDIH seb e1nsseJd X aunjesadwa UD pinbi aunssaud 79 aunyesadwa MOT seb e1nssaJd 79
6. Cond Out Sensor Outdoor Temperature Sensor VALVE amp SENSOR Valve amp Sensor et es Samsung Electronics 3 29 Disassembly and Reassembly Binding Wire 3 ll AMO96FXVAF gt AM120FXVAFX AM144FXVA gt X gt k gt Comp Wire fix by Holder Wire gt Fix Comp Wire Core to Bracket Beam Control Box using large size Cable Tie 350mm 3 30 gt Separate double layer structure of C Box after remove 3 screws and connector Samsung Electronics Disassembly and Reassembly Reference Sheet Pipe Welding Position 4 ll AMO96FXVAFH AM120FXVAFH AM144FXVAFH AM144FXVAJH Front Welding Parts Rear Welding Parts z 2 Welding Position Welding Position Comp Suction Cooling Subcooler In Comp Discharge Subcooler EVI Bypass Comp Vapor Injection Accum 4Way Discharge Oil Sepa Accum Suction 4Way 0il Sepa Out 4Way Cond In Expansion Cond Out Accum Accum Oil Vavle Accum EVI Bypass Vapor Injection EVI Bypass Hot Gas Vavle Suction Hot Gas Vavle 0il Sepa Out Expansion Cooling OI NI Uc BR Wl FN 00 o utc BR Wl nu Pinch Pipe Oil Return Suction Accum Oil Return Valve Suction Subcooler Subcooler In Samsung Electronics 3 31 Disassembly and Reassembly Reference Sheet Pipe Welding Position 4 IM AMO96FXVAFR AM120F
7. Judgment Method DC voltage detection Judged as an error if the detected value is more than 2 8V or 0 2V less than Input voltage defective AC Power wiring error Cause of problem Momentary Overvoltage Low voltage occurs PCB voltage sensing circuit defective 1 Cause of problem H s Povver connection accurately connected Power Cable re connection Is Reactor accurately connected Checkthe Reactor connection Did the Fuse is short Replace Fuse Is EMI PCB and Inverter PCB accurately connected Power Off and then re connection The case of E396 E498 Is Inverter PCB and Fan PCB DC Link voltage connection wire Replace Fan PCB accurately connected i Replace Inverter PCB The case of E396 E498 4 68 Samsung Electronics Troubleshooting 4 3 50 Fan Motor Overcurrent error FAN PCB FAN1 Outdoor unit display FAN PCB FAN2 Occurs when overcurrent flows in the IPM Jud Meth Detected by HAN or S W Installation error Connector error Cause of problem Defective Comp Defective Motor Defective PCB 1 Cause of problem Isthe outdoor unit installed properly Reinstall after removing obstacle Isthe resistance value between different phases of Fan Motor U V VW W U less than 100 No Outdoor Fan Motor Yes Is the resistance between the body of Fan Motor and chassis MO No Outdoor Fan Motor Yes D
8. SYSTEM AIR CONDITIONER OUTDOOR UNIT AM072 096 120 144FXVAFH AM072 096 120 144FXVAFR AM072 096 120 144FXVAVH AM072 096 120 144FXVAUR SERVIC Manual Milli CONTENTS AIR CONDITIONER 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram and Parts List 6 Wiring Diagram 7 Cycle Diagram 8 Key Options 9 Test Operation 10 Reference Sheet Refer to the service manual in the GSPN see the rear cover for the more information Contents li OT Te a 181 1 1 Precautions for the Seriado la 1 1 1 2 Precautions for the Static Electricity and PL sesessssssscssssvcecasosssescevnsnvsososessesscsnenesssenevvessonsvavsscsenssneseobounsecsoboeneeed 1 1 1 3 Precautions for the Safely aaa ao 1 1 1 4 Precautions for Handling Refrigerant for Air Conditioner 1 2 1 5 Precautions for Welding the Air Conditioner Pipe 1 2 1 6 Precautions for Additional Supplement of Air Conditioner Refrigerant 1 2 A E E 1 2 2 Product Specifications e 2 1 2 1 the Feature of Prod arms 2 1 o Pr t 2 1 2 1 2 Changes in comparison to basic mode 2 3 2 1 3 Structure OF Prosa
9. Cabinet front Control parts 1 Separate 1 fixing screw from EEV kit Use Serew Driver 2 Separate cabinet from EEV kit 1 Separate 2 fixing screws from EEV kit Use Serew Driver 2 Separate control part from EEV kit Samsung Electronics 4 Troubleshooting 4 1 Check up Window Description a ELL Seel e el ci ON Hi P 1 dalli ME EE DLE E EIE EL IR SH S uH IIIJ Fatal n SD m 4 H Ji i Log ER Function 1 Function CN22 download PC SMW200 10 black Set up the number of connected outdoor units MICOM download AS PRO For checking indoor unit communication SMW200 07P white YW396 02P red Transmitter 12V ERROR DISPLAY YW396 02P blue State Check SMVV250 04P red Outdoor Unit Tact Switch EEPROM SOCKET Outdoor Unit Dip Switch Samsung Electronics 4 1 4 2 Service Operation 4 2 1 Special Operation gt Key input of the outdoor unit when the service enters the operation mode K1 Number of press Key operation Display on segment 1 time Refrigerant charging in Heating mode K 1 BLANK BLANK 2 times Trial operation in Heating mode K 2 BLANK BLANK 3 times Pump out in Heating mode Outdoor unit address 1 K 3 BLANK 1 9 times Vacuumig Outdoor unit address 3 K 4 BLANK 3 10 times Vacuumig Outdoor unit address 4 K 4 BLANK 4 11 times Vacuuming All outdoor units K 4 BLANK A 12 times En
10. Pell e q o o o o o o o o o o o o o mmm NN SWO2 TEN ONE Setting Setting Remarks Setting can be done from the main outdoor unit only sub unit setting is nnecessary Ex When 12 indoor units are installed SW51 1 SW52 2 Setting total number of installed indoor unit SW51 Tens digit SW52 Units digit Enable maximum capacity restriction for cooling Restrict excessive capacity increase when operating indoor operation units with small capacity Disable maximum capacity restriction for cooling Operation Selecting outdoor unit address Outdoor unit address No 1 Main unit Outdoor unit address No 2 Sub unit 1 Outdoor unit address No 3 Sub unit 2 Outdoor unit address No 4 Sub unit 3 Setting can be done from Main unit only Setting total number of connected MCU Ex When 3 MCUs are installed SW57 3 When 10 MCUs are installed SW57 A Samsung Electronics 8 1 8 2 How to set the key function of the outdoor unit ooooo 9000 BR BR ooo KS K2 K3 K4 L BOBO Goo MEE GES m ONE ki xo K3 KA Tact switch installation and options of how to set up and functional description m Options of how to set up 1 Entry by pressing the K2 for a long time However the operation is only possible during the stop Upon entering the following is displayed If the compressor is set truncatio
11. x x O Q X ON QO Flash x OFF Compression ratio High pressure 1 03 Low pressure 1 03 less than 1 5 and lasts for 10 minutes or more Judgment Method 9 Differential pressure high pressure low pressure less than 0 4 MPa g and lasts for 10 minutes or more Indoor and Outdoor EEV breakdown 4Way Valve breakdown Cause of problem High and Low pressure sensor defective Refrigerant shortage 1 Cause of problem Auto Trial Operation Connect S net and Manifold Gauge essential requirement No Replace defective sensor No Checkthe 4Way Valve Yes Are the Indoor Unitand Outdoor No Unit EEV normally operating s Check the relevant EEV s the S net estimated value and the Manifold Gauge value in range Yes Arethe 4Way Valve normally operating Is current of compressor normally Compressor Inspection Check the refrigerant 4 50 Samsung Electronics Troubleshooting 4 3 36 EVI EEV Open error Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C 27C Indoorunit display x gt Q o Q x x x O O O x e ON 9 Flash x OFF Judgment Method DSH 10 C EVI Out in lt 0 C amp f
12. 1363x1912x832 1363x1912x832 NET kg 195 284 284 299 GROSS Cooling KAN 303 303 318 Heating 1 Proper form capacity standard of air conditioning Cooling capacity It is figures that appear in indoor 80 6 F DB 66 2 F WB outdoor 95 F DB length 50m of piping fall Om standard Heating capacity It is figures that appear in indoor 68 F DB outdoor 44 6 F DB length 50m of piping fall Oft standard 2 If proper form heating capacity is outdoor temperature 44 6 F standard and outdoor temperature goes down by below zero heating capacity can drop according to temperature condition 3 Need special load calculation in case of use by main heating in the winter and please buy product for low temperature that heating effect excels at low temperature 4 Maximum length between outdoor and indoor units allows up to 656ft Equivalent length 722ft 5 If the indoor unit is below height length allows up to 361ft If over 164ft decide whether to install the PDM kit If the outdoor unit is below allowable height length is 131ft 2 8 Samsung Electronics Outdoor Unit Continue DVM S HP 460V Product Specifications AMO72FXVAJH AA AMO96FXVAJH AA AM120FXVAJH AA AM144FXVAJH AA Power HP 3 460 60 HP 3 460 60 HP 3 460 60 HP 3 460 60 Cooling Nominal 72 000 96 000 120 000 144 000 Capacity Cooling Rated 69
13. 2 LOW PRESSURE SENSOR 3 GND 4 VCC PCB Diagram and Parts List 4 CN45 TEMP SENSOR 1 LIQUID 2 LIQUID 3 COMP2 DISCHARGE 4 COMP2 DISCHARGE 5 COMP2 TOP 6 COMP2 TOP CN97 TO FAN COMM 1 12V 2 INV SMPS 3 COMM OUT 4 GND 5 6 5 3 ASS Y PCB INVERTER AN z z D 7 o841 01178A 2 2021 7 62968 o0 la la la la la la la DD P 222277 e HIGH mq r E HI b 297777 Ei LH ER AREA L AREA ET P mw t 7 ay py Y b y Ea wu BR Sue AA TA a i LEELEE uiii 15 esl DIES niii E 3 maa E 1 1 BER nu miu ni nmi mim ni 3 Ki H SEH a a a E A e 1 Tn Gah ee ii d s D 16154 nn E e AHT ry ae ech m i n y 1 mer one Kc LOW VOLTAGE x Hi a M Hi 1 22 27 Be 22 EE Co EEN Z OI ven 3 4 ren 14 s on are 2 Samsung Electronics PCB Diagram and Parts List ASS Y PCB SUB DRIVER cont O W COMP U OUTPUT 22 V COMP V OUTPUT 3 VW COMP U OUTPUT 4 CN22 DOWNLOAD 1 COMPWOUTPUT 1 COMP V OUTPUT 1 COMP U OUTPUT 1 RXD_ATARO 2 TXD_ATARO 3 BOOT 4 TDO 5 TCK 6 TDI 7 TMS 8 9 DC GND 10 DC 5V 11 12 13 14 15 16 17 18 19 20 5 Ee vae MN Ee RP De D CN15 DC H GHVOLTAGE CN13 INVERTER 220V 1 DC 12V A 1 DC 18V 1 DC HIGH VOLTAGE P 1 LIVE 2 INV SMPS RELAY SIGNAL 2 DC GND
14. 4 73 4 3 55 Option setting error of outdoor unit 4 74 4 3 56 Model mismatching of Indoor unit 4 75 4 3 57 Error due to using single type outdoor unit in a module installation 4 76 Contents 5 PCB Diagram and Parts LISt insano 97 5 77 ic a 5 1 7 7 77 11 EE 5 3 POB IN UL s 5 7 r r A A 5 9 507777 ic dr 5 11 o 5 12 6 VViring Diagram POT 6 1 SUMA 20 1047 OS oratum iaa pao iaa 6 1 7 e AAA o O A CN ZeLAMOTZZEXVAEHAANODZ2EXVBOEIL BE 7 1 ENEE EENEG 7 1 7 3 9 12 0 14 144 7 2 EEN iia 7 2 E e AE ONE AE air 7 3 7 6 AMO96FXVAFR AM 120FXVAFR AM144FXVAFR AM144FXVA R 7 3 27 01 0 n 7 4 SMA cooling operan ea ia 7 5 7 9 Heating operation F R psa sie H 7 6 710 Main heating operation TEL aisla 7 7 be ee RE 7 8 7 12 Heating operdton 1AP E 7 9 7 13 Cycle Component Function Explanation narra 7 10 AA PPP UU A 6 1 8 1 Outdoor unit option switch settings ida 8 1 8 2 How to set the key
15. x Figure 1 gt Samsung Electronics 4 57 Troubleshooting 4 3 42 Fan lock error LI Li LI FAN PCB FANT Li FAN PCB FAN2 Outdoor unit display Judgment Method Is checked symptoms by phase current of Fan Motor Fan Motor connection error Cause of problem Defective Fan Defective PCB 1 Cause of problem Power On and then Auto Trial Operation Did the error occurs End of Service No Remove the foreign objects and restart Did you check the foreign objects on the Fan rotary wing Fan do rotate by hand Replace Fan Motor if you rotate the fan by hand the noise occurs Replace Fan Motor Connection wire of Fan Motor did confirmation Check the connection status of the Fan1 and Fan2 Check the connection status and then restart Replace Fan PCB 4 58 Samsung Electronics 4 3 43 Momentary Blackout error Outdoor unit display Z L 42 Troubleshooting Indoorunit display Judgment Method Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C X X d d d X d d d X X d d ON Flash Momentary stop of compressor due to momentary blackout x OFF Cause of pro
16. 3 4 19 05 7 8 22 22 1 1 8 28 58 1 1 8 28 58 Piping Connections Dis Gas Inch Liquid Inch 3 8 9 52 3 8 9 52 1 2 12 7 1 2 12 7 NET mm 880x1695x765 1295x1695x765 1295x1695x765 1295x1695x765 DIMENSION GROSS mm 948x1912x832 1363x1912x832 1363x1912x832 1363x1912x832 NET GROSS kg 190 206 278 300 278 293 Operating Temp Cooling 23 118 23 118 Range 1 Proper form capacity standard of air conditioning Cooling capacity It is figures that appear in indoor 80 6 F DB 66 2 F WB outdoor 95 F DB length 50m of piping fall Om standard Heating 4 75 4 75 Heating capacity It is figures that appear in indoor 68 F DB outdoor 44 6 F DB length 50m of piping fall Oft standard 2 If proper form heating capacity is outdoor temperature 44 6 F standard and outdoor temperature goes down by below zero heating capacity can drop according to temperature condition 3 Need special load calculation in case of use by main heating in the winter and please buy product for low temperature that heating effect excels at low temperature 4 Maximum length between outdoor and indoor units allows up to 656ft Equivalent length 722ft 5 If the indoor unit is below height length allows up to 361ft If over 164ft decide whether to install the PDM kit If the outdoor unit is below allowable height len
17. End of Service Measure Error of No 1 Compressor Error of No 1 Compressor Error of No 1 Compressor Error of No 2 Compressor Replace No 1 Compressor Replace No 1 Inverter PCB Error of No 2 Compressor Error of No 2 Compressor Replace No 2 Compressor Error of No 2 Compressor Error of No 1 Compressor Replace No 2 Inverter PCB 4 63 Troubleshooting 4 3 47 Inverter Overcurrent error Y ng NE n 7 EA AN 1 E 3B INVERTER1 PCB Outdoor unit display CB C INVERTER2 PCB Will occur if the overcurrent flowing in the IPM Meth Au Detected by HAN or S W Installation defective Connection wire error Cause of problem Comp defective Motor defective PCB defective 1 Cause of problem Is the outdoor unit installed properly Remove the obstacles and check the status of the installation s temperature sensor location and the measurement value normally Povver Off and then replacement or correction of the sensor location Is the resistance value betvveen phase of Compressor vvire U V V VV W U less than 20 No Replace Compressor Is the resistance between the body of Compressor and chassis MQ No Replace Compressor Does the Compressor connection wire properly connect to the compressor Check the connection wire Check the status of the connection UVW Yes 4 64 Samsung Electronics Trouble
18. L 4 Compressor 1 L Compressor 2 Top Cause of problem Compressor Discharge or Top Temperature sensor defective Open Short 1 Cause of problem Did the Compressor Discharge or Top Temperature sensor connector break away from the PCB Restart operation after connecting the connector to PCB Resistance value Resistance value m Temperature C Resistance KO After separating the Compressor Discharge or Top Temperature sensor connector from the PCB measure the resistance value between the two terminals 130 8 9 120 11 2 100 18 5 80 32 0 60 59 0 25 200 0 20 242 0 10 362 0 0 553 0 Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the Compressor Discharge or Top Temperature sensor itself Restart operation after replace the PCB Samsung Electronics 4 35 Troubleshooting 4 3 21 Compressor Discharge or Top temperature sensor breakaway error 1 Outdoor unit display Compressor 1 Discharge Compressor 2 Discharge Compressor 1 Top Compressor 2 Top Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Wall mounted NeoForte Operation Timer Turbo 24C x x Q Q Q x Q Q Q x x Q Q ON 9 Flash x OFF Ind
19. non modular model can not be module installation single type only installation Download relevant model EEPROM and then reset Execute automatic commissioning for UP cancellation after EEPROM download 4 76 Samsung Electronics 5 PCB Diagram and Parts List 3 1 ASS Y PCB MAIN HIE TT gi SI MCUJY 0103 das TENTE J Ka x sac ko 1 d Besser es III G d A E E E um jem vi Te m si Ke n H A ru E E l 1 tH Ec pou ed cra Ta e an a de p BE X a m De m E Ch 00 o oiii um SET slop E mL a zg z m o z Lis E B HE Ke E URS cr km e Le a mi e A mm Gah AAA ES S i p 000000 da ee ef c e P 2 a M kr p 9 ml aeeefbeeeef ur EXTERNAL CON z 5 1 Samsung Electronics ASSY PCB MAIN cont OM CN22 PC DOWN LOADER PART 1 RX DOWN 2 TX DOWN 3 N TRST 4 TDO 5 TCK 6 TDI 7 TMS 8 X 9 GND 10 VCC 5 CN42 HUB COMMUNICATION 11 12V 2 1NVERTER INRUSH OUT 33 INVERTER COMM 4 GND 35 HIGH PRESSURE SENSOR 6 LOW PRESSURE SENSOR 7 ZERO CROSSING 8 GND 9 VCC 9 CN12 TRANSMITTER DC POWER 12V 1 12V 2 GND CN33 INDOOR UNIT COMM REDUNDANCY 3 11 2 Samsung Electron
20. 2 AC 9 CN715 MAIN COOLING o CN7OS HOTGAS BYPASS2 CN716 OD EEV VALVE 1 EVIVN 1 1 AC 1 AC 1 AC 13 FVIV V 2 2 AC 2 AC 2 AC Samsung Electronics 5 4 PCB Diagram and Parts List ASSY PCB MAIN HUB cont DC D 02 4 oO 6 D 9 EI E rv LE E A Leven rang 8 da lE RED dE WE E E P EE EE VEER PUEDE zl mE Geet m t Ser Wa ar ilan ae t JA e o E Hs 0 iat pes si e SE MES 193 a mr TY HA EE Tii Ey EA TWA AJA A LAA 5 5 Samsung Electronics ASSY PCB MAIN HUB cont m DC cont C CN83 EVI EEV 1 RX DOVVN 2 TX DOWN 3 N TRST 4 TDO 5 TCK 6 TDI 7 TMS 8 9 GND 10 VCC 5 CN44 TEMP SENSOR 1 SUCCTION 2 SUCTION 3 EVI INLET 4 ENI INLET 5 ENI OUT 6 EVI OUT O CN96 MAIN HUBCOMM 1 CN12 2 INV_SMPS_RELAY 3 GOMM IN 4 GND 5 HIGH PRESSURE SENSOR 6 LOW PRESSURE SENSOR 7 ZERO CROSSING 8 GND 9 VCC Samsung Electronics 2 CNS1 EEVI 1 VCC 2 MODEO 3 RESET MAIN 84 H5 F_SCLK 6 E SDAT 7 GND 6 CHA HIGH PRESSURE SENSOR 1 HIGH PRESSURE SENSOR 3 GND 4 VCC CN46 SUCT 1 SUCT2 2 SUCT2 3 CN43 TEMP SENSOR 1 COMP1 DISACHRGE 2 COMP1 DISCHARGE 3 COMP1 TOP 4 COMP1 TOP 5 COND OUT 6 COND OUT 7 OUTDOOR TEMP 8 OUTDOOR TEMP D CN41 LOW PRESSURE SENSOR
21. 2 DC HIGH VOLTAGE N 2 NEUTRAL 3 12V COMMHN SIGNAL 3 DC 5V 3 NEUTRAL 4 BGND 4 AD_SELECT 5 9 Recibe reu 1 DC 12V A 2 INV SMPS RELAY SIGNAL 3 12V COMM OUT SIGNAL 4 BGND Samsung Electronics 5 8 5 4 ASS Y PCB FAN 2 5 SES v MAH R SEEE Emre oll o ald CR Ee m x SE y eee ees S ie EE oc M eius E EE h oo precio Ajal sc k L 5 9 Samsung Electronics ASSY PCB FAN cont O CN202 FAN1 DOWNLOAD 1 RXD_DEBUG1 2 TXD_DEBUGI1 3 BOOT1 14 TDO1 5 TCK1 6 TDI1 7 TMS1 8 9 DC GND 10 DC 5V 11 12 13 14 15 16 17 18 19 20 CN401 DC HIGH VOLTAGE 1 DC HIGH VOLTAGE P 2 DC HIGH VOLTAGE N 9 CN302 FAN2 DAC 1 DC HIGH VOLTAGE P 2 DC HIGH VOLTAGE N Samsung Electronics 2 GIRANDO 1 DC5V 2 VIEWER1_DAC1 3 VIEWER2_DAC1 4 VIEWER3 DAC 5 DATA_DAC1 6 CS_DAC1 7 CLK_DAC1 8 DC GND 6 CN501 HUB DC COMM OUT 11 DC 18V 2 DC GND 3 4 DC GND 5 6 DC 12V A 7 INV SMPS RELAY SIGNAL 8 12V COMM SIGNAL OUT 9 DC AGND U1 V1 W1 FAN1 OUTPUT U1 FAN1 U OUTPUT V1 FAN1 V OUTPUT W1 FAN1 W OUTPUT 3 CN102 FANIT HALL SENSING 1 HALL_U1 2 DC 5V 3 HALL VI 4 DC GND 5 HALL_W1 6 MOTOR_TEMP1 7 DC GND 7 SSN 1 DC 12V A 2 INV SMPS RELAY SIGNAL 3 12V COM
22. 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoorunit display X x x x O O x x x Q Q ON 9 Flash x OFF Judgment Method Outdoor unit is unable to communicate for two minutes during operation no reception of relocation Cause of problem Communication error between indoor and outdoor units and setup error of indoor unit installation quantity setup switch 1 Cause of problem Press the reset key K3 of the outdoor unit PCB and check the display module Isthere no indoor unit response at all from the display module during the tracking Aftertwo minutes find the indoor unit which displays the communication error and check if the PCB address settings are overlapped Communication error occurs if the indoor unit Remove the communication cable that connects addresses are overlapped the outdoor unit to the indoor nit and measure In this case the communication error will occur in every indoor unit 2 or more units with the address incorrectly set the 2 outdoor unit cables with a scope l y if there is no peculiarity in the address check the communication cable and change the indoor unit PCB Isthe voltage between the 2 cables a square wave with DC 0 7V or more as shown in the image below Check the communication cable and the co
23. AH ZC NOTE 4 fonn SUCTION1 10K AH p CCH1 YELL I 700 EVI V V 1 NOTE i a x 700 EVI V V 2 AUIE 0 SUL L 000 7 N EE r 2 MV li di RESISTANCE VALUE AT 25 C 77 F Ee uus 1FAN DOES NOT APPLY 7 NO A NE 2FAN APPLY lt Im PcB BE 5 X m OO 6d e e W 1COMP DOES NOT APPLY SS NOTE4 AX AIR 10K 2COMP APPLY HEAT PUMP DOES NOT APPLY Ss u HEAT RECOVERY APPLY COND 10K Z ET X NOTES Top1 200K H INPUT VOLTAGE 460V DOES NOT APPLY INPUT VOLTAGE 220V APPLY X NOTES INPUT POWER pisicz00x 2912 HL T R 3 NOTET USE COPPER SUPPLY WIRES i11213141516171 11213141516 71819 INPUT VOLTAGE 460V MODEL APPLIED UTILISER DES FILS D ALIMENTATION EN CUIVRE e mm CODE DB98 34281A This Document can not be used without Samsung s authorization Samsung Electronics Samsung Electronics Wiring Diagram 7 Cycle Diagram 7 1 AMO72FXVAFH AMO72FXVAJH Abbreviation Name INV Inveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler
24. After completing the re setting press K3 button on the button to reset or turn it off to restart MCU MCU BOX 0 address setup MCU PCB OFF se setup Samsung Electronics 4 25 Troubleshooting 4 3 11 Setup Error for MCU Branch part Setup Error for MCU Quantity Used Outdoor Unit Display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoor Unit Display x x O x Q Q x x x O Q ON Flash x OFF Judgment Method e Occurs when the quantity of MCU is incorrectly set by the outdoor unit Occurs when same addresses are found when two or more MCU are connected Special Cause e Outdoor unit MCU setup and same address errors when connecting two or more MCUs 1 Inspection Method Check the Main PCB MCU quantity setting switch of the outdoor unit and check the installed MCU quantity matches Check whether each MCU PCB address switch was duplicated To use reset by pressing the K3 button of the outdoor unit after the reset is completed or reset after turning off the power and then turn it on again Example of MCU quantity setting error ex PCB MCU setting quantity of outdoor unit 2 MCU installed Quantity 3 Outdoor Unit PCB Quantity of Quantity of Indo
25. E 213 When total number of indoor units assigned to MCU is same as actual number of installed indoor units but there is indoor unit that is not installed even though it is assigned on MCU When number of MCU is not set correctly on the outdoor unit or when two or more MCU was E 214 installed some of them have the same address E 215 When two different MCU s have same address value on the rotary switch E 216 When indoor unit is not installed to a MCU port but the switch on the port is set to On hen indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch E 217 e on the port is set to Off When there s at least one or more actual number of indoor unit connection compared to number E 218 of indoor units assigned to MCU E 219 Error on temperature sensor located on MCU intercooler inlet Short or Open E 220 Error on temperature sensor located on MCU intercooler outlet Short or Open E 221 Error on outdoor temperature sensor of outdoor unit Short or open E 231 Error on COND OUT temperature sensor of main outdoor unit Short or Open E 241 COND OUT sensor is detached E 251 Error on discharge temperature sensor of compressor 1 Short or Open E 257 Error on discharge temperature sensor of compressor 2 Short or Open E 262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe E 263 Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe E 266 Top s
26. Outdoor temperature is more than 59 F Cooling commissioning start Outdoor temperature is less than 59 F Heating commissioning start ll Discharge Mode Operation Outdoor power is turned off the Inverter PCB and Fan PCB charging a high DC voltage so dangerous to touch To replace the PCB first turn off the power and the begin if DC voltage is discharged If not use the discharge mode the discharge time of about 15 minutes takes If an error occurs the discharge mode may not properly run Wait until natural discharge In particular E 464 E364 power devices may be damaged therefore do not use the discharge mode gt Block the Inverter PCB 3 phase relay after connected the power and through compressor DC voltage is discharging INV1 and INV2 DC voltage during discharge mode are displayed alternately Discharge mode Display Rotate the three page display as shown below K A gt DC Link Volt1 For example 120 V 0 1 2 0 display gt DCLinkVolt2 For example 120 V 0 1 2 0 display K A gt Link Volt1 gt Discharge is complete the power of the Inverter PCB and Fan PCB is being blocked communication function is blocked E206 will occur gt fvvant operation again after complete discharge mode Restart after K3 key to Reset or Power Reset Samsung Electronics 4 5 Troubleshooting ll Forced defrost operation gt Forced defrost operation Is operation when Frost Formation occ
27. Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoor unit display x x O O x x O O x x x O Q ON OQ Flash x OFF Criteria e The same indoor unit address was setup more than 3 times in MCU Cause of problem e MCU indoor unit address setting error 1 How to check Find an MCU that is composed as the following picture to carry out assembly of branch part again After completing the re setting press K3 button on the button to reset or turn it off to restart Outdoor Unit PCB PCB ADDRESS Ouantity of Quantity of Indoor Unit MCU Indoor Unit 3 MCU 1 4 24 Samsung Electronics Troubleshooting 4 3 10 MCU branch part setup error non installed address setup Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way VVall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoor unit display gt S R S ON D Flash x OFF Criteria e f there is an indoor unit that is not installed among MCU registered indoor units Cause of problem e Indoor unit with the assigned address on MCU not installed 1 Howto check Find an MCU that is composed as the following picture to carry out assembly of branch part again
28. 000 92 000 114 000 138 000 Heating Nominal 81 000 108 000 135 000 162 000 Heating Rated 77 000 103 000 129 000 154 000 Power Consumption Cooling 5 350 6 600 9 190 12 340 Nonducted AHRI Heating 5 430 7 130 9 520 12 400 Current consumption Nonducted AHRI Cooling Heating 73 74 9 0 9 7 12 5 13 0 16 8 16 9 EER Cooling 129 13 9 124 11 2 Nonducted AHRI Heating 4 15 4 23 3397 3 64 IEER AHRI Cooling 23 0 24 2 23 0 22 7 Model DS GB052FAVA DS GBO66FAVASG DS GBO66FAVASG DS GB052FAVA Output 33 1 36 8 36 8 33 1 Compressor Excluded Volume cc rev 320 65 8 65 8 52 0 Capacity Quantity Btu h EA 58 000 1 73 000 1 73 000 1 58 000 2 Lubricant oil XXX KX OIL Liter FV68D PVE FV68D PVE FV68D PVE FV68D PVE Factory Charging Liter 3 9 3 9 3 9 6 2 Refrigerant Type R410A R410A R410A R410A Factory Charging b 12 13 16 31 16 31 19 18 mm 700 273 575 575 MAX STEP 19 29 29 31 CODE DB31 00298A DB94 03285C DB94 03285C DB94 03285C MAX RPM STEP RPM 800 1050 1050 1100 Quantity EA 1 2 2 2 KX CMM 205 260 260 270 Gas Inch
29. 16 31 16 31 19 18 mm 700 575 575 575 MAX STEP 19 29 29 31 CODE MAX RPM STEP RPM DB31 00298A 800 DB94 03285C 1050 DB94 03285C 1050 DB94 03285C 1100 Quantity EA 1 2 2 2 KX CMM 205 260 260 270 Piping Connections Gas Inch 3 4 19 05 7 8 22 22 1 1 8 28 58 1 1 8 28 58 Dis Gas Inch 5 8 15 88 3 4 19 05 7 8 22 22 7 8 22 22 Liquid Inch 3 8 9 52 3 8 9 52 1 2 12 7 1 2 12 7 DIMENSION NET mm 880x1695x765 1295x1695x765 1295x1695x765 1295x1695x765 GROSS mm 948x1912x832 1363x1912x832 1363x1912x832 1363x1912x832 NET kg 195 284 284 299 GROSS 211 303 303 318 Operating Temp Range 1 Proper form capacity standard of air conditioning Cooling capacity It is figures that appear in indoor 80 6 F DB 66 2 F WB outdoor 95 F DB length 50m of piping fall Om standard Cooling 23 118 23 118 23 118 23 118 Heating 4 75 4 75 Heating capacity It is figures that appear in indoor 68 F DB outdoor 44 6 F DB length 50m of piping fall Oft standard 2 If proper form heating capacity is outdoor temperature 44 6 F standard and outdoor temperature goes down by below zero heating capacity can drop according to temperature condition 3 Need specia
30. 2 4 34 4 3 20 Compressor Discharge or Top 1 2 Temperature sensor error ss 4 35 4 3 21 Compressor Discharge or Top temperature sensor breakaway error 4 36 4 3 22 E269 Suction Temperature sensor breakaway error 4 37 4 3 23 High Pressure sensor error Open Short 4 38 4 3 24 Low Pressure sensor error Open Short 4 39 4 3 25 Suction Temperature sensor error Open Short 4 40 4 3 26 Liquid Pipe Temperature sensor error Open Shorf 4 41 4 3 27 EVI In Temperature sensor error 9 4 42 4 3 28 EVI Out Temperature sensor error Open Short 4 43 4 3 29 Suction 2 Temperature Sensor Error OPEN SHORT 4 44 4 3 30 Measures of other outdoor unit error 4 45 4 3 31 E407 Comp Down due to High Pressure Protection Control 4 46 4 3 32 E410 Comp Down du
31. 2 Sensor Main Cooling Valve EVI Bypass Valve EVI SOL Valve Model Insu Code Binding Wire AMO96FXVAFR AM120FXVAFR AM144FXVAXR AMO96FXVAFR AM120FXVAFR AM144FXVA KR DB62 03808A DB62 04154C VALVE 8 SENSOR No Valve amp Sensor Main EEV Valve 2 OD EEV Valve ARV Valve EVI In Sensor Hot Gas 2 Valve EVI Out Sensor Hot Gas 1 Valve Liquid Sensor INSULATION Model Insu Code Binding Wire AMO96FXVAFR AMT20FXVAFR 1 DB62 03808C AMO96FXVAFR AM120FXVAFR 14 AMO96FXVAFR AM120FXVAFR AM144FXVA7KR DB62 03808E DB62 03808C 3 28 Samsung Electronics Disassembly and Reassembly Binding Wire 2 MI AMO96FXVAFR AM120FXVAFR AM144FXVA gt XR VALVE 8 SENSOR Valve amp Sensor Comp Top 1 Sensor Comp Top 1 Sensor Discharge 1 Sensor Discharge 2 Sensor High Pressure Switch 2 INSULATION Model Insu Code Binding Wire AMO96FXVAFR AM120FXVAFR AM144FXVAXR AMO96FXVAFR AM120FXVAFR AM144FXVASKR DB62 03808C VALVE amp SENSOR Valve amp Sensor
32. 68 86 F Outdoor 41 109 4 F e If operation cycle is not stable Checking the amount of refrigerant can be forced to shut down e f did not operation for a long time or when running the heating operation the accuracy may be lower Therefore carried out for more than 30 minutes cooling operation e Depending on the installation environment system protection operation is performed in this case the check result may be inaccurate How to troubleshoot the judged results e Excessive of refrigerant amount After the 5 emissions of calculated total refrigerant amount retry Checking the amount of refrigerant e Deficiency of refrigerant amount After the 5 addition of calculated total refrigerant amount retry Checking the amount of refrigerant e Deficiency of Over cooling After the 10 addition of calculated total refrigerant amount retry Checking the amount of refrigerant e Undetermined Checking the amount of refrigerant confirms that is performed in warranty temperatures area Ensure that there is no other problems in the system by Test Operation 9 14 Samsung Electronics 10 Reference Sheet 10 1 Nomenclature ul LI d ME L pal EE Classification Product Type N INDOOR UNIT NASA X OUTDOOR UNIT NASA Version Product Notation 2013 K DVM PLUS OUTDOOR 2014 V DVM Inverter OUTDOOR 2015 DVM SLIM OUTDOOR G DVM GHP OUTDOOR
33. CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV E EV EVI EEV V ES EVI Sol Valve V EB EVI Bypass Valve V HG Hot Gas Bypass Valve V AW 4Way Valve V AR Accumulator Oil Return Valve CV E EEV Bypass Check Valve CV D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor T_CO Cond Out Temperature Sensor T H EVI In Temperature Sensor T_EO EVI Out Temperature Sensor TL Liguid Pipe Temperature Sensor T_CT Comp Top Temperature Sensor T_A Ambient Temperature Sensor SV_G Gas Pipe Service Valve SV_L Liquid Pipe Service Valve 7 2 AMO96FXVAJH AM120FXVAJH Abbreviation Name INV Inveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV E EV EVI EEV V ES EVI Sol Valve V EB EVI Bypass Valve V_HG Hot Gas Bypass Valve V AW 4Way Valve V AR Accumulator Oil Return Valve CV E EEV Bypass Check Valve CV D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor T_CO Cond Out Temperature Sensor T_El EVI In Temperature Sensor TEO EVI Out Temperature Sensor TL Liguid Pipe Temperature Sensor T_CT Comp Top Temperature Sensor T_A Ambient Temperature Sensor SV_G Gas Pipe Service Valve SV_L Liquid Pipe Servi
34. Change settings Replace PCB Essential Requirements before Changing PCB in Case of Communication Error Refer to p 59 Samsung Electronics 4 19 Troubleshooting 4 3 6 Internal Communication error of the Outdoor Unit C Box Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24 C Indoorunit display y o o R o o S e y o o x 9 0N QO Flash x OFF Judgment Method Communication error between the C Box PCB 1 Cause of problem Restart operation after connecting the Inverter Did the Communication connector PCB2 CN31 when the Comp applied one break away from the PCB Inverter PCB1 connector Check the 3 4 Pin short Service after tum off the Main Power Two Comp applied to the model Restart operation after checking the Inverter Is Inverter PCB1 CN32 and Inverter PCB PCB2 CN31 and PCB2 CN32 Communication CN31 connector accurately connected wire Connector 3 4 Pin Short Service after tum off the Main Power 1 Check the Inverter PCB1 CN32 CN91 and Fan PCB CN 12 Communication wire Connector 2 Restart operation after connecting the Hub PCB CN97 and Fan PCB CN 13 connector Service after turn offthe Main Power Is Inverter PCB1 CN32 and Fan PCB CN12 conne
35. Check the actual use of the branch part If it is used turn on the Dip switch for branch part setup After completing resetting press the outdoor unit s K3 button to reset or turn off to restart 010101019010 Indoor unit Samsung Electronics 4 29 Troubleshooting 4 3 15 MCU branch part setup error Connect more Indoor units than what is actually set up in MCU Outdoor unit display i Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoor unit display o o F o o S o o OQ Flash x OFF Criteria e Occurs when the number of indoor unit installed exceeds that setting in MCU Cause of problem e Number of indoor units exceeds number of indoor units entered on MCU setting 1 Howto check Check the number of indoor units connected to MCU then readjust the switch for the number of units After completing resetting press the outdoor unit s K3 button to reset or turn off to restart e Example of MCU indoor unit setting DIP switch error ex Indoor unit No 5 was connected to branch part C but DIP switch No 3 branch part C is off Outdoor Unit PCB MCU PCB ADDRESS 8 D E F Quantity of Quantity of Indoor MCU Indoor Unit 4 4
36. KW and Over MCU S6NEE1N 6 ROOM A MCU ERE e Mode Control Unit MCU S4NEE1N 4 ROOM MCU S4NEE2N 4 ROOM MEV E24SA EEV KIT 1 Room A MEV E32SA Samsung Electronics EEV KIT 2 Room EEV KIT 3 Room MXD E24K132A MXD E24K200A MXD E32K200A MXD E24K232A MXD E24K132A MXD E24K300A MXD E32K224A MXD E32K300A Applty to products without EEV Wall mount amp Ceiling 2 11 3 Disassembly and Reassembly 3 1 Necessary Tools m MONKEY SPANNER SCREW DRIVER NIPPER ELECTRIC MOTION DRIVER L WRENCH 6 For disassembly and assembly DVM PLUS IV indoor unit please refer to the products with the same structures Only those products that are not specified elsewhere are described here Samsung Electronics 3 1 3 2 Disassembly and Reassembly 3 2 1 72 No Parts Procedure Remark 1 Electrical 1 14 screws that is fixing CABINET remove Use equipment Part Screw driver 2 Remove 4 screws that is fixing and separate Cover Control Box Use Screw driver 3 Power Compressor Valve Motor Sensor con nector connected to ASSY PCB remove 3 2 Samsung Electronics Disassembly and Reassembly 4 2 screws had fixed in terminal block cover when change power terminal block commu nication terminal block remove 5 2 screws had fixed in terminal block after remove 4 screws had fixed
37. M 1 DVM MONO OUTDOOR W DVM VVATER OUTDOOR c DVM GEO GEOTHERMAL OUTDOOR D DVM PLUS3 OUTDOOR X DVM PLUS2 OUTDOOR Product Notation TT BUYER T A B 0 co Rating Voltage A 115V 60Hz 10 B 220V 60Hz 10 C 208V 230V 60Hz E 220V 240V 50Hz D 200V 220V 50Hz F 208V 230V 60Hz 30 G 380V 415V 50Hz 30 38 H 380V 60Hz 30 J 460V 60Hz 30 K 220V 240V 50 60Hz 10 M 127V 50Hz Z EA Se T O mvm m N 380V 415V 50 60Hz 30 Mode C 1 COOLING ONLY HEAT PUMP R HEAT RECOVERY STANDARD GENERAL Temp MODULE STANDARD GENERAL Temp NONE MODULE HIGH GENERAL Temp NONE MODULE O1 IO r STANDARD Samsung Electronics 10 1 ELECTRONICS GSPN GLOBAL SERVICE PARTNER NETWORK Area Web Site Europe CIS Mideast amp Africa gspn1 samsungcsportal com Asia North amp Latin America gspn2 samsungcsportal com gspn3 samsungcsportal com China china samsungportal com This Service Manual is a property of Samsung Electronics Co Ltd O Samsung Electronics Co Ltd July 2013 Any unauthorized use of Manual can be punished under applicable Printed in Korea International and or domestic law Code No AC 00014E 2
38. Pressure sensor of the each Outdoor Unit installed before the compressor start m f the judgment of Outdoor Unit High Low Pressure sensor is Undetermined Checking in accordance with the following order Vacuum mode All of the Outdoor Unit X Check the Pressure sensor breakdown after the saturation pressure Check the Pressure sensor breakdown of the outdoor temperature or connect the manifold gauge to check the pressure Is Service Valve open state of installed module Each Outdoor Unit Service Valve opening of the Outdoor Unit Is Pressure sensor connector properly connect Confirmation and Measures Is voltage 5V between 3 4 pin of PCB Pressure sensor terminal Replace PCB Is deviation of outdoor unit as following High pressure Max Replace Pressure sensor Min deviation less than 2 Yes Off the vacuum mode All of the Outdoor Unit AN Caution If the judgment of Pressure sensor Undetermined Display the error to all of the Outdoor Unit and then Auto Trial Operation is exited Stop the overall system 9 6 Samsung Electronics Test Operation 4 Pressure sensor Independent installation m Inspection item High Low Pressure sensor of the independent installed Outdoor Unit m Error code None The resulting report Undetermined m Determine the status of the Pressure sensor of the independent installed Outdoor Unit before the compressor start m If the jud
39. Refill refrigerant after vacuum Yes Out of the PCB Low Pressure sensor terminals is there voltage between pins 3 and 4 5V EO Replace PCB Yes Replace Low Pressure sensor The V markis the 1st pin on the PCB Samsung Electronics 4 39 Troubleshooting 4 3 25 Suction Temperature sensor error Open Short Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C Indoorunit display o o o 3 o y o 9 o ON O Flash x OFF Judgment Method Refer to the judgment method below Cause of problem Disconnection or breakdown of relevant sensor 1 Cause of problem Did the connector for the Outdoor Suction sensor break away from the PCB Restart operation after connecting the connector to PCB Separate the connector of the Outdoor Suction sensor from the PCB and measure the resistance value between the 2 terminals Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the Outdoor Suction sensor itself Restart operation after replace the PCB 4 40 Samsung Electronics Troubleshooting 4 3 26 Liquid Pipe Temperature sensor error Open Short 14 i Outdoo
40. Troubleshooting 4 3 53 Hall IC Fan error A a 111 1 FAN PCB FAN1 display 1 R d Outdoor unit FAN PCB FAN2 Judgment Fan rotation defective or vibration and noise of the defective operation Method Hall IC there is no signal input Connection status error Cause of prob Hall IC wire disconnection lem Defective circuit parts and defective manufacturing Fan Motor defective 1 Cause of problem Power Off Power Restart Did the error occurs Connection wire o HALL IC did confirmation No Verify that the wire folded orthe connection is detached Yes No HALL IC on the PCB is connected correctly Yes Replace Fan PCB When the error is repeated replace the Fan Motor 4 72 End of Service Check the connecting wire and restart it Check the connecting wire and restart it Samsung Electronics Troubleshooting 4 3 54 Inverter Overheat error 1 Both end resistance values of IGBT module pin 8 9 pin Outdoor unit NVERTER PCB Temperature C NTC ohm AD V Temperature C NTC ohm AD V display INVERTER2 PCB 10 9000 2 58 100 500 0 55 20 6000 233 Judgment IGBT module internal temperature 30 4000 2 03 Method 105 C more than E500 E400 40 3000 1 80 50 2000 147 Cooling Pin and the IGBT junction part assembly 60 1600 1 29 defective 70 1200 1 07 Cause of l l 80 750 0 76 problem Refriger
41. W Compressor connection error Cause of problem Defective Compressor Defective PCB 1 Cause of problem Power Off and then Restart Is the resistance value between different phases of an Motor U VV N WU Replace Fan Motor less than 100 Is the resistance between the body of Fan Motor and chassis MO Replace Fan Motor Does the Compressor connection wire properly connect Check the connection wire Replace Fan PCB 4 56 Samsung Electronics Troubleshooting IPM breakdown diagnostics FAN PCB 1 Preparations before checking 1 Power Off 2 IPM failure discharge mode may not work property Therefore wait more than 15 minutes after the Power Off 3 Remove all of the Fan PCB connectors Comp connector included 4 Prepare the digital multi tester 2 Inspection Method 1 Refer to Figure1 and Table1 respectively the resistance value and diode voltage value measure 2 According to the criterion in Table 1 to determine whetherthe failure of IPM m Measured Point o Division Criterion Remark Measure the resistance values More than 3 MQ Measurement error can occur for reasons such as the initial measurement condenser discharge Measured over at least three times Measure the diode voltage values 01015 oz lt Table 1 gt Fan PCB R702 R704 0702 R706 0703 L gt AS BRING c 40 Nx 34
42. a heavy object on top This may result in electric shock or fire O The use of multiple electric outlets should be prohibited This may result in electric shock or fire 6 Ground the connection if it is necessary The connection must be grounded if there is any risk of electrical short due to water or moisture O Unplug the power or turn off the subsidiary power switch when changing or repairing electrical parts Doing so will prevent electric shock O Explain to workers that the battery for the remote control needs to be separated for storage purposes when the product will not be used for a long time This can cause a problem for the remote control since battery fluid may trickle out Samsung Electronics 1 1 1 4 Precautions for Handling Refrigerant for Air Conditioner Environmental Cautions Air pollution due to gas release Safety Cautions If liquid gas is released then body parts that come into contact with it may experience frostbite blister numbness If a large amount of gas is released then suffocation may occur due to lack of oxygen If the released gas is heated then noxious gas may be produced by combustion Container Handling Cautions Do not subject container to physical shock or overheating Flowage is possible while moving within the regulated pressure 1 5 Precautions for Welding the Air Conditioner Pipe Dangerous or flammable objects around the pipe must be removed before the welding If the
43. aaa ad da ba asi 2 6 2 2 Product Specificato m aaa A 2 7 po NATO OE iii al ein antics ota rns reese 2 7 2 3 Accessory and Option Specifications arica caidas 2 11 Po Ao s 2 11 3 Disassembly and Reassembly 0000000 0000000000000000 37 1 Ll Necesaria 3 1 RTE e Ee TE 3 2 SL NES FIDA I 3 2 EE A EN E AE 3 12 3 2 3 AMO96FXVAFX AM120FXVAF gt AM144FXVARA 222 3 22 3 3 Caution at compressor exchange am ma 3 33 EE le E E 3 35 EL E 3 36 A TOUS d O asia del 4 1 Check up Window 5 4 1 27070 l anna 4 2 4 2 1 Special Operation EE 4 2 4 2 2 DVM S Models EEPROM Code 2222 4 7 4 2 3 Number Display Method sudando sra eb Erb te adnate 4 7 4 3 Appropriate Measures for Different Symptom 4 12 4 3 1 Outdoor Unit Operation FIOW E 4 12 4 3 2 Main PCB has no power 4 15 4 3 3 Communication Error between Indoor and Outdoor Units during Tracking 4 16 4 3 4 Communication Error between Indoor and Outdoor Units after Tracking 4 18 4 3 5 Communication error between main and sub Unit of outdoor unit or between outdoor units 4 19 4 3 6 Internal Communication error of the Outdoor Unit C Box
44. cable of indoor unit E 186 Connection error or problem on SPi E 190 No temperature changes in EVA IN during pipe inspection or changes in temperature is seen in indoor unit with wrong address E 191 No temperature changes in EVA OUT during pipe inspection or changes in temperature is seen in indoor unit with wrong address E 198 Error due to disconnected thermal fuse of indoor unit 4 8 Samsung Electronics Troubleshooting M Diagnosis and Adjustment Error Code gt Error code related to the Communications Settings HW cont Error mode Cause Communication error between indoor and outdoor units installation number setting error E 201 i i l Bon repeated indoor unit address indoor unit communication cable error E 202 Communication error between indoor and outdoor units Communication error on all indoor unit outdoor unit communication cable error E 203 Communication error between main and sub outdoor units E 205 Communication error on all PBA within the outdoor unit C Box communication cable error E 206 E206 C001 HUB PBA communication error E206 C002 FAN PBA communication errorE206 C003 INV1 PBA communication error E206 C004 INV2 PBA communication error E 211 When single indoor unit uses 2 MCU ports that are not in series E 212 If the rotary switch on the MCU for address setting of the indoor unit has 3 or more of the same address
45. fan motor problem constrained defective Motor driver defective or wire is cut Service valve locked Excessive refrigerant 1 Causeof problem Connect S net and Manifold Gauge essential requirement SET ac Are all service valves open Open the Service Valve a isthe Snet estimated value and the Manifold 7 lace Hiah lur s Replace High Pressure sensor Arethe door Unit No lt and Outdoor Unit EEV normally Check the relevant EEV reen operating Are there any blockage inside the pipe filter etc Es Yes am te 7 AretheOutdoorFan N operating normally for the cooling and the Indoor Replace relevant component Fan operating normally for motor or fan he heating aaa 4 46 Samsung Electronics Troubleshooting Outdoor unit display Indoorunit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C Q Q Q s ON 9 Flash x OFF Judgment Method Judgment Method Inspection when the value of low pressure sensor is 1 8kg cm or less for air conditioning and 0 8kg cm for heating Refrigerant shortage Electronic expansion valve blocked Service valve blocked Cause of problem Low pressure s
46. function of the outdoor unit 8 2 8 3 How to check the view mode using a tact svvitch s s 8 4 9 Test OPETI O aynadan 9 1 Auto Irial ei dio NT 9 1 9 1 1 Auto Trial Operation s VDO DS 9 1 9 1 2 Auto Trial Operation ulhetionsvu na adam 9 3 9 1 3 How to troubleshoot of the Undetermined 9 4 9 1 4 Auto Trial Operation Error Code ee 9 13 9 2 Amount of refrigerant automatically checking 9 14 10 Reference Sheet s s s s s s s s s s s s s s s s s s s s s s s s s s s s 10 1 10 1 Nomenclature ana A A 10 1 1 Precautions 1 1 Precautions for the Service Use the correct parts when changing the electric parts Please check the labels and notices for the model name proper voltage and proper current for the electric parts Fully repair the connection for the types of harness when repairing the product after breakdown A faulty connection can cause irregular noise and problems When disassembling or assembling make sure that the product is laid down on a work cloth Doing so will prevent scratching to
47. in accordance with the following order Auto Trial Operation results is Valve and Sensor normal Check the Valve and Sensor s EVI In Out Temperature sensor normal Assembly status Confirmation and Measures connector resistance etc Is EVI EEV connector normal Confirmation and Measures Is EVI EEV coil normal Resistance wire breaking operation impossible etc Replace Coil Is PCB Output signal normal Replace Hub PCB Yes Replace Main EEV Main EEV coil resistance value based Measured temperature is 20 C Operating Resistance of EEV Wiring Diagram Voltage between the VDC phase Q Blue Orange Blue Red Blue Yellow Blue Black 9227 4 9 12 Samsung Electronics Test Operation 10 Main EEV m Inspection item Main EEV of Outdoor Unit Auto Trial Operation Heating only m Error code None The resulting report Undetermined m Determine the Main EEV operation status of the each Outdoor Unit m If the judgment of Main EEV is Undetermined Checking in accordance with the following order Auto Trial Operation results is Valve and Pressure sensor normal No Check the Valve and Pressure sensor Is Main EEV connector normal Confirmation and Measures Is Main EEV coil normal Resistance wire breaking operation impossible etc Replace Coil Is PCB Output signal normal
48. initial measurement condenser U V discharge Measured over at least three times Measure the diode W voltage values N IGBT N HGBT N HGBT Table 1 Inverter PCB PRA 5 h SECH H g 9 98 a W V U 1 S R NC 7 WARNING 3E WEISE VATI NTC o ud pNTC 2 ef S Gi 5 gt 9 C TG WIRE OT S gt gt 6 gt gt gt P BD O ee Od x Figure 1 gt 4 66 Samsung Electronics Troubleshooting 4 3 48 Overvoltage Low voltage error L LIE h 1111 INVERTER1 PCB q ihh 1 Outdoor unit display Li INVERTER2 PCB N phase wiring error and EMI Fuse short Judgment Method E j DCLink Overvoltage Low voltage occurs Check the input wiring f Cause of problem EMI Fuse short 1 Causeof problem 380V isthe voltage No between terminal blocks Power R S T N wire voltage check and restart it R S T wire Yes No Replace Inverter PCB and then restart it Check the 3 phase sensing circuit part Did the EMI PCB Fuse is short Yes Replace Fuse if the rectifier diode of the inverter PCB is normal Samsung Electronics 4 67 Troubleshooting 4 3 49 DC Link voltage sensor error TUCI UL L3 3 INVERTER1 PCB Li 7 NVERTER2 PCB ux mr d 1 2 54 OUTDOOR FAN 1 PCB 2 2 1 OUTDOOR FAN 2 PCB Outdoor unit display
49. not complete the Auto Trial Operation normal operation is prohibited sz Display If does not complete the Auto Trial Operation Display the UP Unprepared on the LED after checking communication Compressor to operate normal operation is prohibited x UP Mode will be turned off automatically at finished the Auto Trial Operation Auto Trial Operation is carried out by the operating conditions From 20 minutes to maximum 2 hours During Auto Trial Operation due to the valve check the noise can be generated Sustained abnormal noise occurs check it 2 When an error occurs during the Auto Trial Operation check the error code in the product and then service it 3 Shut down the Auto Trial Operation resulting report will be issued using the S NET or S CHECKER The resulting report of the Undetermined item troubleshoot the accordance with the service manual Troubleshoot all the items of Undetermined and then restart the Auto Trial Operation 4 Check the following as Trial Operation Heating Cooling Check the Cooling and Heating operation is progressing well Individual Indoor Unit control check the wind direction wind speed Check the Indoor and Outdoor abnormal noise Check the drainage of the Indoor Unit cooling operation More operation Checking status by using the S NET 5 Refer to manual and explain air conditioner usage to user Samsung Electronics 9 1 Test Op
50. s fan speed to maximum value 0 0 Disabled Factory default l 011 LEVEL1 5 db 0 13 LEVEL 2 Enable silent mode for night time 0 3 LEVEL 3 010 Disabled Factory default 0 1 Level 1 of height difference type 1 Indoor When outdoor unit is located 40 80m above the indoor High head condition unit is lower than outdoor unit unit Main 018 Level 2 of height difference type 1 Indoor When outdoor unit is located over 80m above the indoor setting 0 2 S e unit is lower than outdoor unit unit 0 3 Height 57 type 2 Outdoor ke When indoor unit is over 30 m above the outdoor unit ower than indoor unit Long piping condition 0 0 Disabled Factory default When equivalent length of farthest indoor unit from the setting Setting is Mai 0 9 011 LEVEL1 d itisb 100 170 unnecessary if high head ai 4177 condition is set 012 LEVEL2 When equivalent length of farthest indoor unit from the outdoor unit is over 170m 010 Disabled Factory default Energy saving setting Main 0 0 1 Enabled Energy saving mode triggers when the room temperature reaches desired temperature while operating in heating mode 010 Disabled Factory default Rotation defrost HR only Main 1 1 0 31 Enabled When enabled continuous heating operation is possible but heating performance will decrease during rotation defrost operation Expand operational 010 Disabled Factory default temperature range for Main 00 When enabled continuous cooling operation is possible coo
51. to Cabinet for ter minal block protection remove 6 5 screws had fixed to Front part remove Samsung Electronics 3 3 Disassembly and Reassembly Parts Procedure Remark 3 4 7 6 screws had fixed on side refrigerant cooling part outside remove A Donot separate Heat Sink pulling Assy Piping Cooling piping compulsorily Is responsible for parts damage 8 2 screws had fixed on side refrigerant cooling part inside remove Samsung Electronics Binding Wire 1 AMO72FXVAXH Samsung Electronics Disassembly and Reassembly VALVE amp SENSOR No Valve amp Sensor AWAY Valve 21 High Pressure Sensor 3 Suction Sensor EVI Out Sensor INSULATION Model Insu Code Binding Wire n AMO72EXVAXH DB62 04154C AMO72FXVAXH DB62 03808B AMO72FXVAXH DB62 03808C VALVE amp SENSOR No Valve amp Sensor 1 Expansion Valve EVI EEV Valve Accum Oil Return Valve 4 EVIIn Sensor 2 3 INSULATION No Model Insu Code Binding Wire ER AMO72FXVAXH DB62 03808C AMO72FXVAXH DB62 03808E Disassembly and Reassembly Binding Wire 2 AMO72FXVAXH EY m VALVE amp SENSOR Valve amp Sensor 111 Low Pressure Sensor VALVE amp SENSOR Valve amp Sensor Cond Out Sensor Outdoor Temperature Sensor VALVE amp SENSOR No Valve amp Sens
52. unit Displayed in indoor unit E 108 Error due to repeated address setting When 2 or more devices has same address within the network E 121 Error on indoor temperature sensor of indoor unit Short or Open E 122 Error on EVA IN sensor of indoor unit Short or Open E 123 Error on EVA OUT sensor of indoor unit Short or Open E 128 EVA IN temperature sensor of indoor unit is detached from EVA IN pipe E 129 EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe E 130 Heat exchanger in out sensors of indoor unit are detached E 135 RPM feedback error of indoor unit s cleaning fan E 149 Error due to AHU master indoor unit sensor setting E 151 Error due to opened EEV of indoor unit 2nd detection E 152 Error due to closed EEV of indoor unit 2nd detection E 153 Error on floating switch of indoor unit 2nd detection E 154 RPM feedback error of indoor unit E 161 Mixed operation mode error of indoor unit When outdoor unit is getting ready to operate in cooling or heating and some of the indoor unit is trying to operate in heating or cooling mode E 162 EEPROM error of MICOM Physical problem of parts circuit E 163 Indoor unit s remote controller option input is Incorrect or missing Outdo or unit EEPROM data error E 180 Simultaneous opening of cooling heating MCU SOL V V 1st detection E 181 Simultaneous opening of cooling heating MCU SOL V V 2nd detection E 185 Cross wiring error between communication and power
53. x x O O S ON QO Flash x OFF Judgment Method When value of Compressor discharge temperature sensor Top temperature sensor is checked at 120 or more Refrigerant shortage Electronic expansion valve is blocked Service valve blocked Cause of problem Defective discharge temperature sensor TOP temperature sensor defective Blocked pipe and defective Leakage of compressor discharge check valve of not go end outdoor unit 1 Cause of problem sthe resistance value normal for the ompressor discharge Temperature senso Replace Compressor discharge temperat Top temperature sensor ure sensor Top temperature sensor Refer to E251 Yes Auto Trial Operation Do II i Connect S net and Manifold Gauge essential requirement Are all service valves open 3 Open the Service Valve Yes Are the Indoor Unit No and Outdoor Unit EEV normally i Check the relevant EEV operating Arethere any blockage inside the pipe filter etc Check the refrigerant amount 4 48 Samsung Electronics Troubleshooting 4 3 34 3 phase Input Wiring error Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1 Operation Timer Turbo 24C Indoorunit di
54. 0 14 imes Temperatureofliquidpipe E 229 4810 5times TOPtemperature Compressor I F 1858 8769087 02 0 Jl tims TOPtemperature Compressor2 8 C gt 087 times Outdoortemperauwre O C o 429 42 l times 1 EMinettemprture o 97 42 7 42 times EMioutlettemperature le 427C9 42 2 K Fan step SSR or BLDC 0 0 13 STEP gt 0 1 3 Current frequency Compressor 1 P 120 Hz 1 2 0 Current frequency Compressor 2 0 120Hz gt 1 2 0 27 times Suction 2 temperature HR Only 28 times Master Indoor Unit Address R 42 4 2 master indoor unit not selected BLANK N D if indoor unit no 1 is selected as the master unit 0 0 1 When you install the product optional function for outdoor unit must be set in compliance with installation conditions Press and hold the K4 button for 5 seconds to check the SW version and address of the indoor units Information will be displayed in following order Main Hub INV1 INV2 FAN1 FAN2 EEP Automatically assigned address Manually assigned address Display method of automatically assigned addresses in K4 View mode Ex AUTO A001 AUTO A002 AUTO A003 nnm pay 00 o a 0 ANN SEGI SEG2 SEG3 4 Indoor unit A Indoor unit 0 Address No 1 0 1 MV ese KR MCU C MCU 1 Display me
55. 2 screws had fixed in terminal block after remove 4 screws had fixed to Cabinet for termi nal block protection remove 6 5 screws had fixed to Front part remove Samsung Electronics 3 23 Disassembly and Reassembly 3 24 7 6 screws had fixed on side refrigerant cooling part outside remove A Donot separate Heat Sink pulling Assy Piping Cooling piping compulsorily s responsible for parts damage 8 2 screvvs had fixed on side refrigerant cooling part inside remove Samsung Electronics Disassembly and Reassembly No Parts Procedure Remark lt Reference gt Heat Sink To Heat Sink Thermal Grease Spread service work Spread enough Thermal Grease evenly on Plate Heat Sink back whole using roller or brush Reassemble Plate Heat Sink in reverse order of disassembiy Samsung Electronics 3 25 Disassembly and Reassembly Binding Wire 1 lil AMO96FXVAFH AM120FXVAFH AM144FXVA KH VALVE 8 SENSOR No Valve amp Sensor AWAY Valve High Pressure Sensor EVI Bypass Valve EVI SOL Valve Suction Sensor et Model 0 Insu dmuCode dnsuCode Binding Wire Binding Wire CN a nur 20FXVAFH VALVE 8 SENSOR Valve amp Sensor pug Expansion Valve EVI EEV Valve Accum Oil Return Valve
56. 20FXVAFR AM144FXVAFR AM144FXVAJR Samsung Electronics Abbreviation Name INV Inveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV E EV EVI EEV V ES EVI Sol Valve V EB EVI Bypass Valve V HG Hot Gas Bypass Valve V AW 4Way Valve V AR Accumulator Oil Return Valve CV E EEV Bypass Check Valve CV D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor T_CO Cond Out Temperature Sensor ER EVI In Temperature Sensor LE EVI Out Temperature Sensor TL Liguid Pipe Temperature Sensor T_CT Comp Top Temperature Sensor T_A Ambient Temperature Sensor SV_G Gas Pipe Service Valve Liquid Pipe Service Valve 7 7 Cooling operation H R 6 AUREL Jado buneeu ure uoneJedo buljeaH Jado Dullo02 ure A uoneJedo DSuloo pinbi ainssasd 79 1 seb eJnsseJd 79 enjejaduua UD pinbi ainssaid 7g aunjesadwa M07 seb aunssaid 79 eunyejeduua1 MO 74 7 8 Main cooling operation H R Mohd fil ado buneeu ure uoneJedo buljeaH Jado Dullo02 ute A uoneJedo DSuloo pinbi eynssaJd 79 UD H seb eJnsseJd 79
57. 30 Samsung Electronics Troubleshooting 4 3 16 MCU subcooler entrance exit sensor error Open Short 1 a 7 Outdoor unit display EL FAN PCB FAN2 Duct Cassette 1 2 Way Console Celing Defrost Filter MPI Operation Cassette 4 Mini4 Way Defrost Wall mounted NeoForte Turbo 24C Operation Timer Fan Timer Filter Operation Timer Indoor Unit Display 0 x x d x d x d X d X X Q ON 9 Flash x OFF Fanrotation defective or vibration and noise of the defective operation Judgment Method GA Hall IC there is no signal input Connection status error Cause of Hall IC wire disconnection problem Defective circuit parts and defective manufacturing Fan Motor defective 1 Causeof problem Did the connector break away from the PCB Restart operation after connecting the connector to PCB Temperature C Resistance KO 70 2 2 60 3 0 50 4 2 40 5 8 30 8 3 20 12 1 10 18 0 0 27 3 10 43 0 Separate the connector from the PCB and measure the resistance value between the 2 terminals Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective itself Restart operation after replace the PCB Samsung Electronics 4 31 Troubleshooting 4 3 17 Outdoor Temperature Sensor Error Outdoor unit di
58. 62 03808C Samsung Electronics Disassembly and Reassembly Binding Wire 1 M AMO96FXVAJR AM120FXVAJR VALVE 8 SENSOR L3 Valve amp Sensor 4WAY Valve High Pressure Sensor N E Suciton 1 Sensor Suciton 2 Sensor EVI Out Sensor Main Cooling Valve a H D 1 wn ala s EVI Bypass Valve INSULATION Model Insu Code Binding Wire AMO96FXVAJR AM120FXVAJR AMO96F XVAJR AM120FXVAJR Le DB62 03808G DB62 04154C VALVE 8 SENSOR No Valve 8 Sensor 1 EVISOL Valve 2 LowPressure Sensor 3 Hot Gas Valve INSULATION Model Insu Code Binding Wire AMO96FXVAJR AMO96FXVAJR AM120FXVAJR Samsung Electronics 3 17 Disassembly and Reassembly Binding Wire 2 IM AMO96FXVAJR AM120FXVAJR No VALVE 8 SENSOR Valve amp Sensor Main EEV Valve OD EEV Valve Accum Return Valve EVI In Sensor Hot Gas 2 Valve EVI EEV Valve Liquid Sensor AMO96FXVAJR DB62 03808C AM120FXVAJR AMO96F XVAJR AM120FXVAJR AMO96FXVAJR AMT20FXVAIR DB62 041545 Valve amp Sensor Cond Out Sensor 2 Outdoor Temperature Sensor VALVE amp SENSO
59. 7 T CN301 4 m in 23 WHT WHT CN85 Z EXTERNAL CON mi mi oa Il i RED 531 REACTOR2 YEL GRN H cN21 Es s l l WAT ELE ELL CN86 H EXTERNAL CON 1 COMM OUT 8 RED 12 WHT CN09 CN08 CNO7 CN12 Il1oy ES BLU IZ WHT VO rep 50 MAIN PCB WHT a MODE CH BLK wo 33 BLK CN13 sy BLK LZI CN33 IN RED yoz COMM 1120 T40A 690V CN45 CN34 i kab o o F101 BRN F103 e WHT S fede 250V T2A si FILTER F102 e GRAY S Hs md F101 LL Go KA E o m No E NOTES GES E Ea L o S S T o S S Ge E N E MX NOTES F103 BLK 55 SOLUTION Lennon T40A 690V P ey v qu a a E CN31 WHT COMM_0UT Desen e Vo INVERTER HIGH PRESSURE BLK w5 WAT KA Tm op EEV V V e NOTE4 9 EV BYPASS1 V V HUB PCB EMI FILTER IN 2507 T2A T2A DOWNLOAD BECEZEZBEZZ CN22 BLK DOWNLOAD 1 Oli LOV PRESSURE BLK SENSOR R HOTGAS2 V V Jx NOTE 4 O INVERTER P C B 1 B Sr HIGH PRESSURE pu HOTGASI v v 7 SSES SENSOR c N32 coMM iN CN91 WHT BLK ZE TTT ccH2 BLU e WHT S in e 7 p KM AT BIK EVI OUT 10K 77 F A EV1 1N 10K
60. 7 70007 fal Assembly status connector the two terminals resistance etc Discharge Temperature sensor resistance value Temperature C Resistance KQ When Auto Trial Operation does maintain Thermo On status of Indoor ventilation Indoor Unit Adjusts the refrigerant Is refrigerant in the system properly Addition Emitted Samsung Electronics Test Operation 8 4Way Valve m Inspection item 4Way Valve of Outdoor Unit m Error code None The resulting report Undetermined m Determine the 4Way Valve operation status of the each Outdoor Unit m If the judgment of 4Way Valve is Undetermined Checking in accordance with the following order Auto Trial Operation results is Valve and Pressure sensor normal No Check the corresponding Pressure sensor Is 4Way Valve connector properly connect Confirmation and Measures Is 4Way Valve coil normal Wire breaking operation impossible etc Replace Valve coil Yes No Is PCB Output signal normal Replace PCB Yes Replace 4Way Valve Body Retry the Auto Trial Operation If the continuous Undetermined is displayed Samsung Electronics 9 11 Test Operation 9 EVI EEV m Inspection item EVI EEV of Outdoor Unit m Error code None The resulting report Undetermined m Determine the EVI EEV operation status of the each Outdoor Unit m If the judgment of EVI EEV is Undetermined Checking
61. AHRI Heating Cooling 14 8 12 9 19 5 13 8 26 0 12 5 33 8 11 2 Heating 4 15 4 23 3 97 3 64 Cooling 23 0 26 0 24 2 22 7 Compressor Model DS GB052FBVASG DS GB052FBVASG DS GB052FBVASG DS GB052FBVASG Output Excluded Volume 33 1 33 1 33 1 33 1 cc rev 52 0 52 0 52 0 52 0 Capacity Btu h 58 000 58 000 58 000 58 000 Quantity EA 1 2 2 2 Lubricant oil XXX KX OIL Liter FV68D PVE FV68D PVE FV68D PVE FV68D PVE Factory Charging Liter 3 9 6 2 6 2 6 2 Refrigerant Type R410A R410A R410A R410A Factory Charging b 12 13 16 31 16 31 19 18 MAX STEP mm 700 575 575 575 19 29 29 31 CODE DB31 00298A DB94 03285C DB94 03285C DB94 03285C MAX RPM STEP RPM 800 1050 1050 1100 Quantity EA 1 2 2 2 kX Gas CMM 205 260 260 270 Piping Connections Inch 3 4 19 05 7 8 22 22 1 1 8 28 58 1 1 8 28 58 Dis Gas Inch 5 8 15 88 3 4 19 05 7 8 22 22 7 8 22 22 Liquid NET Inch 3 8 9 52 3 8 9 52 1 2 12 7 W227 DIMENSION Operating Temp Range mm 880x1695x765 1295x1695x765 1295x1695x765 1295x1695x765 GROSS mm 948x1912x832 1363x1912x832
62. Excluded Volume cc rev 52 0 52 0 52 0 52 0 Capacity Btu h 58 000 58 000 58 000 58 000 Quantity EA 1 2 2 2 Lubricant oil Type Liter FV68D PVE FV68D PVE FV68D PVE FV68D PVE Factory Charging Liter 3 9 6 2 6 2 6 2 Refrigerant Type R410A R410A R410A R410A Factory Charging b 12 19 16 31 16 31 19 18 MAX STEP mm 700 19 575 29 575 29 5 3 31 CODE DB31 00298A DB94 03285C DB94 03285C DB94 03285C MAX RPM STEP RPM 800 1050 1050 1100 Quantity EA 1 2 2 2 KX CMM 205 260 260 270 Piping Connections DIMENSION Gas Inch 3 4 19 05 7 8 22 22 1 1 8 28 58 1 1 8 28 58 Dis Gas Inch Liquid NET Inch 3 8 9 52 880x1695x765 3 8 9 52 1295x1695x765 1 2 12 7 1295x1695x765 1 2 12 7 1295x1695x765 GROSS 948x1912x832 1363x1912x832 1363x1912x832 1363x1912x832 NET 190 278 278 293 GROSS 206 300 300 312 Operating Temp Range 1 Proper form capacity standard of air conditioning Cooling capacity It is figures that appear in indoor 80 6 F DB 66 2 F WB outdoor 95 F DB length 50m of piping fall Om standard Cooling 23 118 23 118 23 118 23 118 Heating 4 75 4 75 Heat
63. HG Hot Gas Bypass Valve V_4W 4Way Valve V_AR Accumulator Oil Return Valve CV_E EEV Bypass Check Valve CV_D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor TCO Cond Out Temperature Sensor T_EI EVI In Temperature Sensor T_EO EVI Out Temperature Sensor T_L Liquid Pipe Temperature Sensor T_CT Comp Top Temperature Sensor T_A Ambient Temperature Sensor SV_G Gas Pipe Service Valve SV_L Liquid Pipe Service Valve Samsung Electronics 7 5 AMO96FXVAJR AM120FXVAJR A CV MC OFM Abbreviation Name NV nveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV SE EVI EEV V_ES EVI Sol Valve V EB EVI Bypass Valve V_HG Hot Gas Bypass Valve V AW 4Way Valve V AR Accumulator Oil Return Valve CV E EEV Bypass Check Valve CV D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor T_CO Cond Out Temperature Sensor T_El EVI In Temperature Sensor LE EVI Out Temperature Sensor TL Liquid Pipe Temperature Sensor T XT Comp Top Temperature Sensor TA Ambient Temperature Sensor SV G Gas Pipe Service Valve SV L Liquid Pipe Service Valve 7 6 AMO96FXVAFR AM1
64. M SIGNAL IN 4 DC AGND ad U2V2 42 FAN2 OUTPUT U2 FAN2 U OUTPUT V2 FAN2 V OUTPUT W2 FAN2W OUTPUT PCB Diagram and Parts List 4 CN101 FAN2 HALL SENSING 1 HALL_U2 2 DC 5V 3 HALL_V2 4 DC GND 5 HALL_W2 6 MOTOR_TEMP2 7 DC GND CN301 FAN2 DOWNLOAD 1 RXD_DEBUG2 2 TXD_DEBUG2 3 BOOT2 14 TDO2 5 TCK2 6 TDI2 7 TMS2 8 9 DC GND 10 DC 5V 11 12 13 14 15 16 17 18 19 20 5 10 5 5 ASS Y PCB EMI Sp e JA WARNING COPPER FOL HIGH VLT e oF Ft L m EROVAC CT A kk AH f b F r I d LI T jl a Fa KR LR OM CNO1 02 03 R S T INPUT 2 CN04 05 06 R S T OUTPUT 3 CN22 HUB 220V 4 CNOZNVERTER pu CNO1 T IN CN04 R OUT 1 LIVE 1 LIVE CNO2 S IN CNO5 S OUT 2 NEUTRAL 2 NEUTRAL CNO3 RAN CNO06 T OUT 3 NEUTRAL 5 CN1TO EARTH 1 EARTH 5 11 Samsung Electronics 5 6 SUB COMM 5 12 5 S e si Samsung Electronics 6 Wiring Diagram 6 1 072 096 120 144 INVERTER PCB 2 08 CN91 E E A NDOOR OUTDOOR COMM E E E BRN BLK WHT YEL GRN 1 1 44 1 77 ha L2 a eec see ey ee a pox des oy gli de resp geg 4 EEPROM COMM CHK 112131415161
65. R Valve amp Sensor Comp Top Sensor Discharge Sensor High Pressure Switch INSULATION Model Insu Code Binding Wire AMO96FXVAJR AM120FXVAJR DB62 03808C AMO96FXVAJR AM120FXVAJR DB62 03808D Samsung Electronics Disassembly and Reassembly Binding Wire 3 ll AMO96FXVAJ X AM120FXVAJ gt gt Comp Wire fix by Holder Wire gt Fix Comp Wire Core to Bracket Beam Control Box using large size Cable Tie 350mm gt Separate double layer structure of C Box after remove 3 screws and connector Samsung Electronics 3 19 Disassembly and Reassembly Reference Sheet Pipe Welding Position IM AMO96FXVAJH AM120FXVAJH Front Welding Parts Rear Welding Parts m KER a m o Welding Position z S Welding Position Comp Suction Cooling Subcooler In Comp Discharge Subcooler EVI Bypass Comp Vapor Injection Accum 4Way Discharge 0il Sepa Accum Suction 4Way Oil Sepa Out Accum Accum Oil Valve 4Way Cond In Accum EVI Bypass Expansion Cond Out Vapor Injection EVI Bypass Expansion Subcooler Hot Gas Valve Suction OJTOOTIN OYU BTW TIN Pinch Pipe O COIN ION JU BR 1 NY Hot Gas Valve Oil Sepa Out Accum Oil Return Valve Suction Oil Return Suction Liquid BallValve rSubcooler n N Subco
66. Replace Hub PCB Yes Replace Main EEV ame Main EEV coil resistance value based Measured temperature is 20 C Operating Resistance of Main EEV Coil Voltage between the VDC phase 0 15015 9 1 4 Auto Trial Operation Error Code Division Error Code Service Valve is closed Refer to Service Valve Dedicated Error Code High pressure sensor breakdown Refer to High Low pressure sensor Low pressure sensor breakdown Module installed X Other error codes Refer to Service Manual Samsung Electronics 9 13 9 2 Amount of refrigerant automatically checking Through the detect operation is the ability to verify automatically for the amount of refrigerant K2 Tact Switch Press the 5 times Signal input S CHECKER signal input Temperature conditions satisfied Temperature conditions satisfied Check the amount of refrigerant Check the amount of refrigerant Judge the amount of refrigerant Judge the amount of refrigerant Lic Gr ES dul ES Sh ES ng Excessive of Deficiency of I W S SE WS SS Normal refrigerant refrigerant f Normal Excessive Deficiency Undetermined amount amount J Complete Undetermined A Caution e If escape the warranty temperatures can not get the accurate results Indoor
67. XVAFR AM144FXVAFR AM144FXVAJR Front Welding Parts Rear Welding Parts z 2 Welding Position Welding Position gt Comp Suction Cooling Subcooler In Comp Discharge Subcooler HEV Bypass Comp Vapor Injection Accum 4Way Discharge Oil Sepa Accum Suction 4Way 0il Sepa Out 4Way Cond In Expansion Cond Out Accum Accum Oil Vavle Accum EVI Bypass Vapor Injection EVI Bypass Hot Gas Vavle Suction Hot Gas Vavle 0il Sepa Out Pinch Pipe COIN I an U1 UN OI IY U1 AI WIJN Accum Oil Return Valve Suction Subcooler Expansion Oil Return Suction LQD Ball Valve Subcooler 3 32 Samsung Electronics 3 3 Caution at compressor exchange ll Compressor exchange order Occasion that compressor is 1 inside outdoor unit Occasion that compressor is 2 inside outdoor unit Establish compressor to exchange by cutting Refrigerant release driving of applied outdoor unit X Refrigerant release driving enforces 1th necessarily Release driving that enforce contiguously can be responsible for compressor breakdown Lock all SVC valve of liquid pipe and gas pipe Enter in vacuum mode and establish as all EEV and Valve open Reclaim refrigerant of outdoor unit using Recovery Unit X When there is no Recovery Unit refer to below contents 1 If refrigerant release driving is enforced refrigerant remaining amount of o
68. ant cooling heat sink and refrigerant piping T assembly defective Assembled bolt defective Cause of problem Enforce the discharge mode before Power Off K2 press the 6 times IPM IGBT module pin 8 9 Replace Inverter PCB Is it normally both end resistance value E500 Bottom E400 Top Yes IGBT module pin 8 9 Is the bolt of the heat sink fully tightened Tighten Bolt Screw check the foreign objects between the heat sink and IPM Remove foreign objects and apply the heat sink grease And then reassembly Did properly apply the heat sink grease Apply the heat sink grease and then reassembly Between the heat sink and the IPM Good No Good Samsung Electronics 4 73 Troubleshooting 4 3 55 Option setting error of outdoor unit Outdoor Unit Display Indoor Unit Display O Operation x Reservation Blast x Filter x Defrost Judgment Method e Refer to the judgment method below e Option setting error of outdoor unit E2P option use of other model or set of the relevant outdoor unit compressor breakdown Special Cause 1 Causeof problem Is the Compressor breakdown Set the compressor breakdown setting value as not set setting value is not set X When setting breakdown for repair and replace of compressor Change the setting after replace the outdoor unit EEPROM accurately connecte connector 4 Connect outdoor uni
69. art m f the judgment of Outdoor Unit Temperature sensor is Undetermined Checking in accordance with the following order Must wait more than 1 hour Is deviations of the each Outdoor Unit Temperature sensors more than 10 C No Resistance measurement method After separating the Temperature sensor connector from the PCB measure the resistance value between the two terminals Discharge Temperature sensor resistance value Resistance KQ Temperature C Is Temperature sensor properly assembled Confirmation and Measures Yes Is Temperature No sensor connector properly connect Confirmation and Measures Yes No Is Temperature sensor resistance value normal Replace sensor Yes Check the breakaway of sensor or replace PCB Is deviations of the each No b Outdoor Unit Temperature sensors less than 10 C Yes AN Caution If the Outdoor Unit with a history of operation Auto Trial Operation inclusion Must be carried out Auto Trial Operation after 1 hour from final operation stopped Samsung Electronics 9 5 Test Operation 3 High Low pressure sensor Module installed m High Low Pressure sensor of each of the outdoor unit that module is installed m Error code of High Pressure sensor E505 The resulting report Undetermined Error code of Low Pressure sensor E506 The resulting report Undetermined m Determine the status of the High Low
70. assette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C 27C x x o Q9 Q9 Q9 x x o o Q9 ON 9 Flash x OFF Judgment Method Refer to the judgment method below Indoorunit display Cause of problem CCH Connector PCB is not connected Compressor Top sensor breakaway Own problem of CCH 1 Judgment Method D Current compressor Top temperature Tini lt 2 C XTini Power on or temperature of initial compressor Top after reset 2 Current compressor Top temperature Outdoor temperature lt 2 C 3 Outdoor temperature 30 C 4 UP state If the above condition is satisfied at the same time Mark the CCH wire breaking error E445 Isthe CCH connector connected to PCB Replace EVI EEV Isthe compressor Top temperature sensor fixed in correct position Fixthe compressor Top temperature sensor in correct position Is CCH resistance normal No 500 7000 infinite for disconnection Change CCH Does the E445 error occur even after the outdoor unit power is put back in Normal Operation Change PCB Samsung Electronics 4 55 Troubleshooting 4 3 41 Fan starting error FAN PCB FAN1 Outdoor unit display FAN PCB FAN2 Startup and then if the speed increase is not normally Jud tMeth 2 Detected by HAN or S
71. ast operation for more than 10 minutes Indoor Unit Temperature sensors more than 10 C the Indoor Unit by wired remote control setting connection wire of Outdoor Unit properly connect Temperature sensor resistance value normal Yes No No Indoor Temperature sensor setting Remote control gt indoor unit Confirmation and Measures Replace sensor If the Outdoor Unit with a history of operation Auto Trial Operation inclusion Must be carried out Auto Trial Operation after 1 hour from final operation stopped If the Indoor temperature setting by wired remote control Carried out the Auto Trial Operation after setting the Temperature sensor of Indoor Unit X Resistance measurement method After separating the Temperature sensor connector from the PCB measure the resistance value between the two terminals Discharge Temperature sensor resistance value Resistance KQ Temperature C Indoor Unit of outdoor air introduction Will be excluded from the Indoor air temperature EVA In Out Temperature sensor checking Samsung Electronics Test Operation 2 Outdoor Unit Temperature sensor m Inspection item Outdoor temperature of each Outdoor Unit Cond Out EVI In Out Suction Liquid pipe temperature sensor m Error code None The resulting report Undetermined m Determine the status of the Temperature sensor of the each Outdoor Unit installed before the compressor st
72. asures by code Error Measures Check the connection of Fan motor and PBA Replace PBA if there is no anomaly Check the connection of Fan motor and PBA Replace PBA if there is no anomaly Check the connection of COMP and Inverter PBA Replace PBA if there is no anomaly Check the connection of COMP and Inverter PBA Replace PBA if there is no anomaly FAN2 wire unconnected error FAN1 wire unconnected error COMP 2 wire unconnected error COMP 1 wire unconnected error FAN2 PBA IPM temperature sensor error Replace FAN PBA FAN1 PBA IPM temperature sensor error Replace FAN PBA Inverter PBA2 IGBT temperature sensor error Replace Inverter PBA Inverter PBA1 IGBT temperature sensor error Replace Inverter PBA Samsung Electronics 4 45 Troubleshooting 4 3 31 EY Comp Down due to High Pressure Protection Control Outdoor unit display Cassette 4 Mini4Way VVall mounted NeoForte Operation Defrost Fan Defrost Filter Operation Indoorunit display 9 o o o o o y ON 09 Flash x OFF Judgment Method Value of the high pressure sensor is detected at 40kg cm or more Cooling Operation Outdoor unit fan motor problem constrained defective Motor driver defective or wire is cut Outdoor heat exchanger is contaminated Cause of problem Service valve locked Fill refrigerant Heating Operation Outdoor unit
73. blem Momentary stop of compressor due to momentary blackout 1 Precautions Replace Hub PCB or Main Hub Connection wire Samsung Electronics 4 59 Troubleshooting 4 3 44 Outdoor Fan Motor overheating Outdoor unit FAN PCB FAN1 display 3 3 3 FAN PCB FAN2 Judgment Overheating due to the internal sensor of the Fan Motor Method Defective connection wire Cause of prob Defective Fan Motor lem Defective PCB Defective installation conditions 1 Cause of problem Power Off Power Restart Did the error occurs End of Service Connection wire O Fan Motor did confirmation Verify that the wire folded orthe connection is detached No Check the connecting wire and restart it Is there anything strange in appearance Fan Motor Replace Fan PCB Replace Fan Motor 4 60 Samsung Electronics Troubleshooting 4 3 45 Fan IPM Overheat error Outdoor unit FAN1 PCB display 5 FAN2 PCB Judgment IPM internal temperature more than 85 C E455 E355 Method Cause of prob Heat sink and IPM assembly defective lem Defective heat sink cooling 1 Cause of problem Did check the foreign objects R foreign object between the heat sink pin emove foreign objects Cold heat sink assembly defect occurs Isthe bolt ofthe heat sink fully tightened Tighten Bolt Did check the foreign objects Remove foreign objects and betwe
74. blocked by alien substance etc can become cause of compressor breakdown because oil is not collected Can doubt that is blocked if oil separator capillary tube temperature is low after refrigerant outlet temperature of compressor in driv ing rises Compressor 2 individual occasion oil separator capillary tubes each other cross Confirm that is blocked in stationary state through nitrogen pressurization availability 2 Breakdown of Accum Oil Return Valve ARV Damage can become cause of compressor breakdown because oil is not collected if filter of valve front piping etc is blocked with ARV is closed Power connector of ARV confirms that was linked right Extract connector in vacuum mode or confirm whether when insert action sound of valve happens 3 When CCH is badness can become cause of compressor breakdown by oil foaming 3 34 Samsung Electronics 3 4 MCU Cabinet upper 1 Separate 2 fixing screws from the cabinet Use Serew Driver 2 Separate cabinet from MCU Cabinet front 1 Separate 4 fixing screws from the cabinet Use Serew Driver 2 Separate 4 fixing screws from the brackets Use Serew Driver Cabinet front 1 Separate front cabinet from MCU Control box cover 1 Separate 2 fixing screws from the control box cover Use Serew Driver 2 Separate control box cover from MCU Samsung Electronics 3535 3 5 EEV KIT Parts Procedure Remark 3 36
75. ce Valve Samsung Electronics 7 3 AMO96FXVAFH AM120FXVAFH AM144FXVAFH AM144FXVAJH Abbreviation Name INV Inveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV E EV EVI EEV V_ES EVI Sol Valve V EB EVI Bypass Valve V_HG Hot Gas Bypass Valve V AW 4Way Valve V AR Accumulator Oil Return Valve CV E EEV Bypass Check Valve CV D Discharge Check Valve TD Discharge Temperature Sensor TS Suction Temperature Sensor T_CO Cond Out Temperature Sensor T_El EVI In Temperature Sensor T_EO EVI Out Temperature Sensor TL Liquid Pipe Temperature Sensor LEI Comp Top Temperature Sensor TA Ambient Temperature Sensor SV_G Gas Pipe Service Valve SV_L Liquid Pipe Service Valve 7 4 AMO72FXVAFR AMO72FXVAJR Abbreviation Name INV Inveter Compressor OFM Outdoor Fan Motor OHX Outdoor Heat Exchanger AC Accumulator OS Oil Separator IC Intercooler IPMC IPM Cooler CH Crank Case Heater HPS High Pressure Sensor LPS Low Pressure Sensor HPSW High Pressure Switch EM Main EEV E EV EVI EEV V_ES EVI Sol Valve V EB EVI Bypass Valve V_
76. ctor accurately connected 1 Check the Main PCB Main PCB TX circuit Confirm a blinking of Fan PCB LD22 32 inspection 2 Check the Hub PCB Hub PCB TX circuit inspection Service after turn offthe Main Power Replace Main PCB 4 20 Samsung Electronics Troubleshooting 4 3 7 Internal PCB Communication error of the Outdoor Unit C Box Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1 Operation Timer Turbo 24 C Indoorunit display o o i o o R y p o o X ON A Flash x OFF Judgment Method PCB does not respond to the invoked Main PCB Cause of problem C Box internal Inverter PCB Fan PCB Hub PCB defective 1 Cause of problem E206 C001 Connection vvire of Hub PCB Main PCB did confirmation Replace Connection vvire Verify the broken vvire Replace Hub PCB E206 C002 N Lighting of Fan PCB LD41 did confirmation E Check the connection status CN12 connector Yes Is Fan PCB CN13 connector accurately connected No Fan PCB CN13 connection Yes Replace Fan PCB Fan PCB TX part Breakage Samsung Electronics 4 21 Troubleshooting Internal PCB Communication error of the Outdoor Unit C Box cont E206 C003 C004 N Lighting ofINVPCB LD11 did confirmat
77. d Yes N Confirma blinking of Hub PCB LED O Check the short circuit of Hub PCB Replace Hub PCB Yes Did you check the connection status ofthe Main Hub connection wire m Connecting the communication wire CN96 Yes Replace Fan PCB Samsung Electronics 4 15 Troubleshooting 4 3 3 Communication Error between Indoor and Outdoor Units during Tracking Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C x x O O x x O O x x x O O s QO Flash x OFF Indoorunit display Judgment Method Communication error between indoor and outdoor units Cause of problem Refer to the judgment method below 1 Cause of problem Indoor Unit Installation Quantity Setup Switch of Outdoor Unit Compare and check the set value and the actual number of indoor units installed Are the number of actual installed indoor units and the set value forthe installation quantity setup switch the same Correctly setthe indoor unit installation quantity setup switch of the outdoor unit and press the reset key K3 of the outdoor PCB to re execute tracking Press the reset key K3 of the outdoor PCB and check the display module to check for the quantity of indoor u
78. d Key operation Press and hold 1 time Auto Trial Operation K K BLANK BLANK K2 Number of press Key operation Display on segment Refrigerant charging in Cooling mode K 5 BLANK BLANK Trial operation in Cooling mode K 6 BLANK BLANK Pump down all units in Cooling mode K 7 BLANK BLANK H R Checking the pipe connection 4 times H P Automatic setting of operation mode Cooling Heating K 8 BLANK BLANK for trail operation 5 times Checking the amount of refrigerant a 77 77 BUSCO agit differ depending on the progress Discharge mode of DC link voltage K A BLANK BLANK 7 times Forced defrost operation K B BLANK BLANK 8 times Forced oil collection K C BLANK BLANK 9 times Inverter compressor 1 check K D BLANK BLANK 10times Inverter compressor 2 check K E BLANK BLANK 11 times Fan 1 check K F BLANK BLANK 12 times Fan 2 check K G BLANK BLANK 13 times End Key operation X nv1 amp Inv2 voltage during discharge mode are displayed alternately x Outdoor Power Off even when the Inverter PCB Fan PCB is a high DC voltage charging contacts at danger x When you run the repair and replacement of the PCB should work after the power is turned off the DC voltage discharge Natural discharge until Please wait for at least 15 minutes X fan error occurs the discharge mode may not work properly In particular E464 amp E364 is power devices can be damaged Therefore the discharge mod
79. de at the same time of compressor that broke down Decide that exchange all 2 that exchange side that broke down after judge state of oil by below photograph color extracting oil in compressor that broke down in case of exchange compressor ASTM exchange all 2 more than 3 gt Change to compressor that is beside Normalcy Clamping force of bolt that fix compressor is 3 0 5 N m 2 VVeight of compressor and quantity of oil When compressor is shipped at factory oil of compressor unit standard 1100cc was filled up GBO52FAVA of weight of compressor including oil is 31 6kg and GBO66FAVA is 35 4kg Add oil to outdoor unit as much as relevant weight if is heavy than weight of compressor that weight of compressor that is changed to locality is changed nevvly Quantity kg of added oil Weight kg of compressor that broke down Weight kg of newly change compressor f quantity of calculated addition oil passes over 1kg quantity of add oil does by 1kg Problem of that is blocked in oil circulation of remaining oil of compressor that broke down below 0 3kg compressor if is light more than 0 8kg than vveight of compressor that vveight of compressor that is changed to locality is changed nevvly inspects oil circulating system because possibility occurred is high 3 Checking of oil circulating system CD Oil separator capillary tube or filter of block If filter or capillary tube of oil separator lower column is
80. door temperature Outdoor unit Prevention of heating operation due to high temperature of outdoor displa pay Prevention of cooling operation due to lovv temperature of outdoor Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoor Unit Display x x Q x x x X ON QO Flash x OFF Judgment Heating operation When the outdoor temperature is more than 30 C Method Cooling operation When the outdoor temperature is less than 15 C Cause of problem System protection operation status Is not breakdown Samsung Electronics 4 53 Troubleshooting 4 3 39 Prevention of heating refrigerant charge due to outdoor temperature Outdoor Unit Display Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Filter MPI Operation Defrost Filter Operation Indoor Unit Display x 2 S ON OQ Flash x OFF Judgment Method e When the heating refrigerant charge If the outdoor temperature is more than 15 C Special Cause e System protection operation status Is not breakdown 4 54 Samsung Electronics Troubleshooting 4 3 40 CH wire breaking error Outdoor unit display Duct Cassette 1 2 Way Console Celing C
81. dual outdoor unit the outdoor unit refrigerant emissions to the indoor part gt Liquid pipe service valve and the gas pipe service valve operation the operator manually need to close gt Observe low pressure using View Mode of K4 button if compressor operate If low pressure goes down below about 0 2 MPa g Immediately lock the gas side service valve Pump Out operation is shut down Pump out operation shut down K1 button once more press or K3 button one time press gt f operation of low pressure goes down below 0 1 MPa g Will be stopped automatically for the protection of the compressor How to Initiate K1 Tact Switch 3 times 6 times Main EEV Operation side 700 Step Stop side O step Protection Control Conduct the discharge temperature high pressure control Low pressure protection control is not carried out Low pressure is outside normal limits Operation is shut down after gas pipe manually closed Etc Entry after safety start Only the corresponding Outdoor Unit operation To pump out more than 2 Except communication between Outdoor Unit of relevant set after working for one remainder set makes Pump Out add M Cooling Pump Down Recover the refrigerant of Indoor Unit and Piping to outdoor side Liquid pipe service valve and the gas pipe service valve operation the operator manually need to close if the installation of the long pipe Any refrigerant into the outdoor unit can not be recovered there
82. e do not use Natural discharge until Please wait for at least 15 minutes 4 2 Samsung Electronics Troubleshooting ll Commissioning gt After initial installation stable operation for a certain period of time limited to operation conditions Cooling Heating K2Tact Switch twice K2Tact Switch twice Method of Entry Compressor Normal operation but the maximum frequency limit differ by model Indoor Unit Whole operation The set temperature 37 4 F Whole operation The set temperature 104 F Outdoor fan and valves Normally control conduct Operation time Min 60 minutes Max 10 hours Etc Exceed the maximum operating time at stops and waits Protection and control self diagnosis is performed lll Refrigerant filling operation Operation to filling the refrigerant compressor was fixed at a certain frequency Cooling Heating Method of Entry K2 Tact Switch one time K1Tact Switch one time Compressor Starting frequency Mild Start frequency operation Indoor Unit Whole operation The set temperature 37 4 F Whole operation The set temperature 104 F Outdoor fan and valves Normally control conduct Operation time 60 minutes Ftc Samsung Electronics During the filling operation does not enter the special operation such as oil recovery defrost 4 3 Troubleshooting M Heating Pump Out gt Operation for the repair of the Indivi
83. e g TO ET AAA M Indoor Unit Installation Quantity Setup Switch The following is an example of how to use the switch according to the number of indoor unit installations The maximum number of possible indoor unit con nections is 64 3Units Connected 17Units Connected 31Units Connected 64Units Connected 105 Digit 1sDigit 105 Digit 1sDigit 105 Digit 15 Digit 105Digit 1 s Digit 0 3 1 7 3 1 6 4 105 Digit 15 Digit 0 9 0 9 3 If the quantity of the indoor units configured with the indoor unit installation quantity setup switch does not match the quantity of the indoor units found during the tracking process E201 and U200 will be displayed in order on the display module 4 When you install more than one MCU set the quantity of installed MCU 4 14 Samsung Electronics Troubleshooting 4 3 2 Main PCB has no power phenomenon Outdoor unit display Main PCB has no power phenomenon 7 seg does not blink Judgment Method Hub PCB power and connection wire to detect HUB PCB connector wire defects and the connection is not Main PCB defective Hub PCB defective High pressure switch operation Cause of problem 1 Cause of problem Yes No Refrigerant overcharge Isa high pressure switch normal High pressure switch is defective Yes No Check the connection status of EMI PCB Check the short circuit of EMI PCB Fuse HUB PCB CN70 AC220V is connecte
84. e to Low Pressure Protection Control 4 47 4 3 33 E416 Suspension of starting due to Compressor discharge temperature sensor Top ene EE 4 48 4 3 34 3 phase input re Lee 4 49 4 3 35 E428 Suspension of starting by abnormal compression ratio 4 50 A 3 30 EVI EEV ODO CO a a 4 51 4 3 37 Refrigerant leakage 4 52 4 3 38 Prevention of heating cooling operation due to outdoor temperature 4 53 4 3 39 Prevention of heating refrigerant charge due to outdoor temperature 4 54 4 3 40 CH wire breaking stessi OPERIS Radi URP UP 4 55 eet 4 56 4 342 Fan lock O ii m n 4 58 4 3 43 Momentary blackouteroruzna aaa OH naaa 4 59 4 3 44 Outdoor Fan Motor overheating 4 60 4 3 45 Fan Oo beetebuerg 4 61 EES 4 62 4 3 47 Inverter Overcurrent erfor E 4 64 4 3 48 Overvoltage LOW voltage 4 67 4 3 49 DC Link voltage sensor errof nena 4 68 4 3 50 Fan Motor Overcurrent ero ains 4 69 4 3 51 Input Output Current ld e 4 70 4 3 52 Outdoor Fan PCB Overvoltage Low voltage error 4 71 4 3 53 ENT A in a E n 4 72 4 3 54 Inverter Overheat 45
85. en the heat sink and IPM apply the heat sink grease And then reassembly Yes Samsung Electronics 4 61 Troubleshooting 4 3 46 Compressor starting error Outdoor unit display INVERTER1 PCB INVERTER2 PCB Startup and then if the speed increase is not normally J Meth Detected by HAN or S W Compressor connection error Cause of problem Defective Compressor Defective PCB 1 Cause of problem Power Off and then Restart Is Hot Gas Bypass Valve startup the initial power is applied Hub Replace PCB Hot Gas Bypass Valve initial startup does it work Replace Hot Gas Bypass Valve Is the resistance value between different phases of compressor UVVWWU less than 20 Replace Compressor Is the resistance between the body of Compressor and Replace Compressor chassis MO Does the Compressor connection wire properly connectto the compressor No Check the connection wire Yes 4 62 Samsung Electronics Starting error cont m Compressor applied one Continue Replace Inverter PCB Samsung Electronics m Compressor applied two Power Off and then Restart Did the error occurs Yes Inverter1 Compressor2 Inverter2 Compressor1 to the wiring change Restart Before change After change Error depending on the situation replace the Compressor or PCB Before change After change Troubleshooting
86. ensor defective Leakage of compressor discharge check valve of not go end outdoor unit Error may be found when used in temperature range outside the conditions of use Operating outside temperature at 20 C or less for heating and operating outside temperature at 5 C or less for Cooling 1 Cause of problem Auto Trial Operation Connect S net and Manifold Gauge essential requirement s nn No Open the Service Valve Isthe S net estimated value and the Manifold mm No Gauge value in range Replace Lovv Pressure sensor Yes in re the Indoor Unit and Outdoor No O Check the relevant EEV Arethereany blockage inside Yes m the pipe filter etc Pipe inspection e No 7 s there any leakage in 12 Liquid Pipe Valve or the discharge check valve _ Yes _ of thenot go end Outdoor Unit when only Replace relevant component some Outdoor Units mp _ Are operating E Check the refrigerant amount Samsung Electronics 4 47 Troubleshooting 4 3 33 h Suspension of starting due to Compressor discharge temperature sensor Top temperature sensor Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way VVall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoorunit display o 0 x o Q
87. ensor of compressor 1 is detached E 267 Top sensor of compressor 2 is detached E 269 Suction temperature sensor is detached from the sensor holder on the pipe E 276 Error on top sensor of compressor 1 Short or Open E 277 Error on top sensor of compressor 2 Short or Open E 291 Refrigerant leakage or error on high pressure sensor Short or Open E 296 Refrigerant leakage or error on low pressure sensor Short or Open E 308 Error on suction temperature sensor Short or Open Samsung Electronics 4 9 Troubleshooting M Diagnosis and Adjustment Error Code gt Error code related to the Communications Settings HW cont 4 10 Error mode Cause E 311 Error on temperature sensor of double layer pipe liquid pipe sub heat exchanger Short or Open E 321 Error on EVI ESC IN temperature sensor Short or Open E 322 Error on EVI ESC OUT temperature sensor Short or Open E 323 Error on suction sensor 2 Short or Open E 346 Error due to operation failure of Fan2 E 347 Motor wire of Fan2 is not connected E 348 Lock error on Fan2 of outdoor unit E 353 Error due to overheated motor of outdoor unit s Fan2 E 355 Error due to overheated IPM of Fan2 E 361 Error due to operation failure of inverter compressor 2 E 364 Error due to over current of inverter compressor 2 E 365 V limit error of inverter compre
88. eration X If out of warranty coverage and bounds installation operation according to the conditions the some of items displayed as Undetermined and judgment is not Ex system that module installed If the outdoor unit is not operation by the load on the indoor and outdoor corresponding Sub Outdoor Unit does not judge the inspection entries However Indoor Outdoor Temperature sensor and Pressure sensor judgment is available Xx Operation must close the upper and lower cabinets on the front of the Outdoor Unit If the cabinet opened while operation Can cause damage to the product and can not get the exact S NET data 4 Inspection item of the Auto Trial Operation During the Auto Trial Operation of the DVM S defect check items are as follows Indoor Unit Temperature sensor Indoor temperature of each Indoor Unit EVA In Out Temperature sensor Outdoor Unit Temperature sensor Outdoor temperature of each Outdoor Unit Cond Out EVI In Out Suction Liquid Pipe Temperature sensor Outdoor Unit High Pressure sensor amp Low Pressure sensor Outdoor Unit Service Valve judgment of the Open Closed Outdoor Unit Compressor Judgment of the operation current Cycle state judgment of the Outdoor Unit Outdoor Unit 4Way Valve Judgment of the operation Outdoor Unit EVI EEV Judgment of the operation LS The operation mode of the Auto Trial Operation Heating only if the detection 5 Warranty Coverage of the Aut
89. ercooler Compressor Gas A pipe Liquid pipe Oil separator AMO96FXVAJ AM120FXVAJX AM144FXVA Fe CONTROL BOX Heat exchanger 4 VVAY V A Accumulator Intercaaler Gas pipe Compressor Liquid pipe Oil separator TRANS BOX 2 6 Samsung Electronics Product Specifications 2 2 Product Specifications 2 2 1 Outdoor Unit DVM S HP 208 230V E Model AMO72FXVAFH AA AMO96FXVAFH AA AM120FXVAFH AA AM144FXVAFH AA Mode HP HP HP HP Power 3 208 230 60 3 208 230 60 3 208 230 60 3 208 230 60 Capacity Cooling Nominal 72 000 96 000 120 000 144 000 Cooling Rated 69 000 92 000 114 000 138 000 Heating Nominal 81 000 108 000 135 000 162 000 Heating Rated 77 000 103 000 129 000 154 000 Power Consumption Nonducted AHRI current consumption Nonducted AHRI Cooling 5 350 6 680 9 140 12 340 Heating 5 430 7 130 9 520 12 400 Cooling 14 6 18 2 24 9 33 7 Heating 14 8 19 5 26 0 33 8 EER Nonducted AHRI Cooling 12 9 13 8 12 5 11 2 Heating 4 15 4 23 3 97 3 64 IEER AHRI Cooling 23 0 26 0 24 2 22 7 Compressor Model DS GB052FBVASG DS GB052FBVASG DS GB052FBVASG DS GB052FBVASG Output 33 1 33 1 33 1 33 1
90. fore should use a separate container Observe low pressure using View Mode of K4 button if compressor operate Iflow pressure goes down below about 0 2 MPa g Immediately lock the gas side service valve Pump Out operation is shut down Pump out operation shut down K1 button once more press or K3 button one time press gt f operation of low pressure goes down below 0 1 MPa Will be stopped automatically for the protection of the compressor Y vY v How to Initiate K2Tact Switch 3 times Compressor Address No 1 Outdoor Unit 60Hz Other Outdoor Unit COMP OFF Indoor Unit Whole Operation The set temperature 37 4 F 4Way Valve OFF Cooling Mode Main EEV Operation side 2000 Step Stop side 2000 step Etc Does not conduct the operation ofthe special operation and protection control Pressure and temperature is outside normal limits Operation is shut down after gas pipe manually closed 4 4 Samsung Electronics Troubleshooting M Vacuum Operation gt Operation to facilitate vacuum to open the valve after the Outdoor Unit repair How to Initiate K1Tact Switch 7 times 11 times Compressor OFF Indoor Unit Outdoor Fan OFF 4Way Valve OFF Valves Open all valves maximum Etc If not turn off the vacuum mode the start of normal operation is prohibited lll Piping Inspection Operation gt Operation mode to check the status of the piping between the MCU and the indoor unit gt Heat Pump Model
91. gment of Outdoor Unit Pressure sensor is Undetermined Checking in accordance with the following order Vacuum mode of Outdoor Unit Check the pressure sensor breakdown X Check the Pressure sensor breakdown after the saturation pressure of the outdoor temperature or connect the manifold gauge to check the pressure Is Pressure sensor connector properly connect Confirmation and Measures Is voltage 5V between 3 4 pin of PCB Pressure sensor terminal Replace Hub PCB Is deviation of outdoor unit as following High pressure Max Min deviation less than 2 Replace PCB Off the vacuum mode of Outdoor Unit Complete D un N Caution If the Outdoor Unit with a history of operation Auto Trial Operation inclusion Maintain the vacuum mode for more than 5 minutes Samsung Electronics 9 7 Test Operation 5 Service Valve m Inspection item Outdoor Unit Service Valve is open closed m Error code E503 The resulting report Undetermined m Determine the status of the Service Valve open closed of the each Outdoor Unit m If the judgment of Outdoor Unit Service Valve is Undetermined Checking in accordance with the following order Is Service Valve open state Service Valve opening Is 4Way Valve Main EEV Pressure sensor normal Check the 4Way Valve Main EEV Pressure sensor Adjusts the refrigerant Addition Emitted Is refrigerant in
92. gt Meanings of First Alphabetical Character Number of Error Code Displayed alphabet Explanation VVhen displaying Error 101 700 VVhen displaying Error 701 800 Displays address of subordinate vvithin the set C001 HUB C002 FAN C003 INV1 C004 INV2 Displays address of MCU Ex C100 MCU address C101 MCU address 1 C102 MCU address 2 When E206 occurs When MCU error occurs When displaying outdoor unit address Ex U200 Outdoor unit 1 U201 Outdoor unit 2 U202 Outdoor unit 3 U203 Indoor unit 4 When displaying indoor unit address Ex A000 Indoor unit adress 0 A001 Indoor unit address 1 A002 Indoor unit address 2 gt Order of Error Display Display method for error that occurred in Error Number gt Indoor unit address gt E471 gt A002 gt E471 gt A002 indoor unit Error Number repeat display Display method for error that occurred in outdoor unit Error Number gt Outdoor unit address gt E471 gt U200 gt E471 gt U200 and other methods of error display Error Number repeat display E206 gt C001 gt E206 C002 Samsung Electronics 4 7 Troubleshooting ll Diagnosis and Adjustment Error Code Error code related indoor unit CODE Explanation E 101 Indoor unit communication error Indoor unit can not receive any data from outdoor unit E 102 Communication error between indoor unit and outdoor
93. gth is 131ft Samsung Electronics 2 9 Product Specifications Outdoor Unit Continue DVM S HR 460V mE E AMO72FXVAJR AA AMO96FXVAJR AA AM120FXVAJR AA AM144FXVAJR AA Power HR 3 460 60 HR 3 460 60 HR 3 460 60 HR 3 460 60 Capacity Cooling Nominal 72 000 96 000 120 000 144 000 Cooling Rated 69 000 92 000 114 000 138 000 Heating Nominal 81 000 108 000 135 000 162 000 Heating Rated 77 000 103 000 129 000 154 000 Power Consumption Nonducted AHRI Cooling 5 350 6 600 9 190 12 340 Heating 5 430 7 130 9 520 12 400 current consumption Nonducted AHRI Cooling Heating 73 7A 9 0 9 7 12 3 13 0 16 8 16 9 EER Nonducted AHRI Cooling 129 13 9 12 4 11 2 Heating 4 15 4 23 3 97 3 64 IEER AHRI Cooling 23 0 24 2 23 0 22 7 Compressor Model DS GB052FAVA DS GBO66FAVASG DS GBO66FAVASG DS GB052FAVA Output 33 1 36 8 36 8 33 1 Excluded Volume 52 0 65 8 65 8 52 0 Capacity Quantity 58 000 1 73 000 1 73 000 1 58 000 2 Lubricant oil Type FV68D PVE FV68D PVE FV68D PVE FV68D PVE Factory Charging 3 9 3 9 3 9 6 2 Refrigerant Type R410A R410A R410A R410A Factory Charging b 12 13
94. he refrigerant Samsung Electronics 4 51 Troubleshooting 4 3 37 Refrigerant leakage error Outdoor unit Refrigerant leakage judgment before starting display When start refrigerant leakage judgment Judgment Before starting Before compressor starting after system halt 2 minutes High amp low pressure sensor Open Short error occurs and 1kg cm2 or less Method When start When the high pressure sensor value cooling 3 1kg cm heating 2 2kg or is detection continuously for 3 seconds Cause of Refrigerant leakage and shortage problem Disconnection or breakdown of high 8 low pressure sensor 1 Pressure sensor Open Short error determination method 1 Identifies from when power is supplied or 2 minutes after RESET and only when set is stopped 2 An Open Short error will occur if the input voltage standard range of 0 5V 4 95V is exceeded 2 Inspection Method Did the Pressure sensor connector Please re inspect after connecting get disconnected from the PCB the connector to the PCB s there refrigerant inside the set Please check by connecting the menu Refill refrigerant after vacuum folder gauge to the service valve REI 7 Out of the PCB Pressure sensor terminals is there voltage between pins 3 and 4 5V The V markisthe 1st pin on the PCB Replace Pressure sensor 4 52 Samsung Electronics Troubleshooting 4 3 38 Prevention of heating cooling operation due to out
95. ics 2 CN21 ASPRO DOWN LOADER PART 1 VCC 2 MODEO 3 RESET MAIN 4 5 F_SCLK 6 F_SDAT 7 GND OPTI MODE SELECTOR 1 KEY3 2 GRID 3 KEY4 CN45 OUTDOOR UNIT COMM 1 COM C 2 COM D 3 4 12V 5 GND CN13 POWER 5V 1 COMA 2 3 CNA3 COMMTEST 1 12V 2 INVERTER INRUSH OUT 3 INVERTERCOMM 4 GND 2 CN85 STATE CHECK 1 12V 2 ERROR CHECK OUT 13 12V 4 COMP CHECK OUT 1 INDOOR UNIT COMM 1 COM A 2 COM B 13 5V 4 AGND PCB Diagram and Parts List 4 KAEO 1 GND 2 3 VCC 4 EEPROM SELECT 5 EEPROM SO 6 EEPROM SI 7 EEPROM CLOCK CN86 OUTSIDE CONTROLLER 1 CONTROL 2 GND 2 CN34 NONUSE COMM 1 COME 12 COM F 5 2 ASS Y PCB MAIN HUB m AC me ni er T i 7 nenne D t E 2220 Ru 56 z WC DES 3 het ka Ela ir m r Ti Get oie e 3 kamen ett BEY E B SSS sarad ora A Ki 1 A3 L3478A OO LAA PEANG 33 5 3 Samsung Electronics PCB Diagram and Parts List ASS Y PCB MAIN HUB cont m AC cont OM CN714 CCH1 2 CN713 CCH2 3 CN707 REF RECHARGE 4 CN704 HOTGASVALWVET 1 N 1 N 1 REF FRECHARGE V V 1 N 2 CCH1 2 CCH2 2 N 2 HOTGAS BYPASS1 5 CN7O05 HOTGASVALVE2 6 CN711 OlL RETURN VALVE 7 DUES IAN CN70 AC 1 HOTGAS BYPASS2 1 ACCUM OIL RETURN VALVE 1 4 WAY VALVE 1 AC 2 N 2 N 2 N
96. imer Operation Timer Turbo 24C d X X d X d X d d X X d S ON QO Flash x OFF Refer to the judgment method below Judgment Method Disconnection or breakdown of relevant sensor Cause of problem 1 Cause of problem Did the connector for the EVI In Temperature sensor break away from the PCB Restart operation after connecting the connector to PCB HHH HHHH Temperature C Resistance KQ Separate the connector of the Outdoor EVI In pua en A PE 70 22 Temperature sensor from the PCB and measure 60 3 0 the resistance value between the 2 terminals s 50 4 2 40 5 8 30 8 3 20 12 1 10 18 0 0 27 3 10 43 0 Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the Outdoor EVI In Temperature sensor itself Restart operation after replace the PCB 4 42 Samsung Electronics Troubleshooting 4 3 28 EVI Out Temperature sensor error Open Short Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo Q x x O x x O s ON QO Flash x OFF Indoorunit display 1 Cause of proble
97. ing capacity It is figures that appear in indoor 68 F DB outdoor 44 6 F DB length 50m of piping fall Oft standard 2 If proper form heating capacity is outdoor temperature 44 6 F standard and outdoor temperature goes down by below zero heating capacity can drop according to temperature condition 3 Need special load calculation in case of use by main heating in the winter and please buy product for low temperature that heating effect excels at low temperature 4 Maximum length between outdoor and indoor units allows up to 656ft Equivalent length 722ft 5 If the indoor unit is below height length allows up to 361ft If over 164ft decide whether to install the PDM kit If the outdoor unit is below allowable height length is 131ft Samsung Electronics 4 75 4 75 2 7 Outdoor Unit Continue DVM S HR 208 230V AMO72FXVAFR AA AMO96FXVAFR AA AM120FXVAFR AA AM144FXVAFR AA HR HR HR HR 3 208 230 60 Cooling Nominal 72 000 Cooling Rated 69 000 Heating Nominal 81 000 Heating Rated 77 000 3 208 230 60 3 208 230 60 96 000 120 000 92 000 114 000 108 000 135 000 103 000 129 000 Cooling 5 350 6 680 9 140 Heating 5 430 7 130 Cooling 14 6 3 208 230 60 144 000 138 000 162 000 154 000 12 340 9 520 12 400 18 2 24 9 33 7 Capacity Power Consumption Nonducted AHRI Current consumption Nonducted AHRI EER Nonducted AHRI IEER
98. ion s Yes No Is INV PCB CN32 connector accurately connected Yes Replace INV PCB INV PCB TX part Breakage 4 22 Check the connection status CN91 connector CN32 connector connection Samsung Electronics Troubleshooting 4 3 8 MCU branch part setup error inconsecutive connection with the use of 2 branch parts Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C 27C Indoor unit display 0 o P x x x O Q x z ON TFlash x OFF Criteria e When 2 branch parts are used for one indoor unit without connecting them consecutively Cause of problem e Branch part assembly error 1 Howto check Find an MCU that is composed as the following picture to carry out assembly of branch part again After completing the re setting press K3 button on the button to reset or turn it off to restart MCU BOX 0 address setup ON OFF HHHH Gi Branch part use setup Setting error Indoor unit address Samsung Electronics 4 23 Troubleshooting 4 3 9 MCU branch part setup error Repeated setup for the same address over 3 times Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost
99. ked 2 For heating operation Each of the conditions below needs to be satisfied for more than 20 minutes High pressure average gt 25kg cm Low pressure average lt 8 5kg cm Teva out Tair in gt 3 C Teva in Tair in gt 2 C Tcond out Tair out lt 0 C NO Every compressor is in operation amp indoor unit operation and Thermo On OK Error Content 2 Cause of problem Isthe Cond Out sensor and the sensor holder correctly attached Yes Is the Cond Out sensor resistance value reasonable Refer to E231 Yes Are there any changes n the value of the sensor when operating from stop to heating Yes Complete 4 34 No No No Outdoor Cond Out sensor breakaway error Re insert sensor Re attach sensor holder Defective Sensor Replace Sensor Blocked Sensor Path Change heat exchanger Assy Samsung Electronics Troubleshooting 4 3 20 Compressor Discharge or Top 1 2 Temperature sensor error SE 1 Compressor 2 Discharge yr 4 1 Disch L Outdoor unit display Li Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoorunit display 7 o o o o o o o o X ON Flash x OFF Judgment Method Refer to the judgment method below
100. l load calculation in case of use by main heating in the winter and please buy product for low temperature that heating effect excels at low temperature 4 Maximum length between outdoor and indoor units allows up to 656ft Equivalent length 722ft 5 If the indoor unit is below height length allows up to 361ft If over 164ft decide whether to install the PDM kit If the outdoor unit is below allowable height length is 131ft 2 10 4 75 4 75 Samsung Electronics 2 3 Accessory and Option Specifications Product Specifications 2 3 1 Accessories Picture Classification Model Name Remark MXJ YA1509M 15 0 kW and below MXJ YA2512M Over 15 0 kW 40 6 kW and below MXJ YA2812M Over 40 6 kW 46 4 kW and below Y Joint MXJ YA2815M Over 464 kW 69 6 kW and below MXJ YA3419M Over 69 6 kW 98 6 kW and below MXJ YA4119M Over 98 6 kW 139 2 kW and below MXJ YA4422M Over 1392 kW MXJ YA1500M 232 kW and below V Joint MXJ YA2500M Over 23 2 kW 69 6 kW and below MXJ YA3100M Over 696 kW 139 2 KW and below MXJ YA3800M 139 2 kW and below MXJ HA2512M 46 4 kW and below for 4 rooms Tj IT Distribution header MXJ HA3115M 69 6 kW and below for 8 rooms MXJ HA3819M Over 69 6 kW for 8 rooms MXJ TA3819M 139 2 kW and below 2 j Y Joint Outdoor Unit MXJ TA4422M 145 kW and below Y Joint MXJ TA3100M 139 2 kW and below C JJ Only H R Outdoor Unit MX TA3800M 145
101. ling operation 0 1 Enabled even in low temperature condition up to 15 C but noise of the MCU will increase ATU Automatic setting Factory default Address for classifying the product from upper level mE 0 15 Manual setting for channel 0 15 controller DMS S NET 3 etc Snow accumulation e 0 10 Enabled Factory default During snow accumulation prevention the fan may prevention control Man 1 4 re E Disabled spin even when the unit is not in operation Samsung Electronics 8 3 8 3 How to check the view mode using a tact switch 9000 VVT 0000 e Al Kies Let H dto E AE TEN ONE ONE js K3 Number of press K4 Number of press Intialize Reset setting Key operation Same as initial state CO ASA ttm Outdoorunitmodel 1 S AMIGOFXVX XxX gt 0f16 Ztimes Orderfrequency ofthe compressor 2 312Hz3120 3times Orderfequenyyofthecompesor2 3 120Hz32120 4times Hi hpressure MPa 4 13MP2152 5times lLowpressure MPa 5 2 043MPa gt 043 Discharge temperature Compressor 1 6 87 C 0 8 7 Discharge temperature Compressor 2 87 C 0 8 7 IPM temperature Compressor 1 8 87 C 0 8 7 Jtimes IPMtemperature Compressor2 ______ _9 8 C gt 087 f times CTsensorvalue Compressor 2 J B 2A2020 T3times CONDOUTtempaute DL X 4269 4213
102. m EVI OUT Did the connector for the EVI Out Temperature sensor break away from the PCB Restart operation after connecting the connector to PCB Resistance value measure part Temperature C Resistance KQ Separate the connector of the Outdoor EVI Out Temperature sensor from the PCB and measure the resistance value between the 2 terminals 70 2 2 60 3 0 50 4 2 40 5 8 30 8 3 20 12 1 10 18 0 0 27 3 10 43 0 EVI OUT Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the Outdoor EVI Out Temperature sensor itself Restart operation after replace the PCB Samsung Electronics 4 43 Troubleshooting 4 3 29 Suction 2 Temperature Sensor Error OPEN SHORT Outdoor Unit Display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C Indoor Unit Display o x x x O x X Q x x S ON O Flash x OFF Judgment Method e Refer to the judgment method below Special Cause Disconnection or breakdown of relevant sensor 1 Inspection Method Did the connector for the Suction 2 sensor break away from the PCB Restart operation after connecting the connector to PCB Resistance value measure par
103. n Vapor Injection EVI Bypass Expansion Cond Out Hot Gas Vavle 0il Sepa Out Pinch Pipe Oil Return Suction ION JUTI BR WIN Accum Oil Return Valve Suction O OINI ND Ul B U NI LQD Ball Valve Subcooler Subcooler Expansion LOD Ball Valve Cooling NO Accum Suction Samsung Electronics 3 11 Disassembly and Reassembly 3 2 2 AMO096FXVAJ AM120FXVAJ Parts Procedure Remark Electrical 1 11 screws that is fixing CABINET remove Use equipment Part Screw driver 2 Remove 4 screws that is fixing and separate Cover Control Box Use Screw driver 3 Power Compressor Valve Motor Sensor con nector connected to ASSY PCB remove m Mh e 8 E D a Samsung Electronics Disassembly and Reassembly Procedure 4 2 screws had fixed in terminal block cover when change power terminal block commu nication terminal block remove 5 2 screws had fixed in terminal block after remove 4 screws had fixed to Cabinet for ter minal block protection remove 6 5 screws had fixed to Front part remove Samsung Electronics 3 13 Disassembly and Reassembly Procedure Remark 3 14 7 6 screws had fixed on side refrigerant cooling part outside remove A Donot separate Heat Sink pulling Assy Piping Cooling piping compulsorily s responsible for par
104. n 1 or 2 is displayed in Seg4 Displays the number of the currently selected option Seg1 Seg2 Displays the set value of the currently selected option Seg3 Seg4 2 After entering the option briefly press the K1 switch will change the value of Seg1 Seg2 and then select the option to change Option Seg numbers see the table on page 39 9000 8100 3 Press the switch briefly to the option you want to change the items of K2 will change the value of Seg3 Seg4 and then select the option to change 8180 bili 4 K2 switch is pressed for 2 seconds after the option is selected 7 Segment entire blinks and enters the tracking mode and the option value is saved e As described above if you do not normal shutdown the option settings can not be saved ZS Press for along time if you want to go back to the settings before the entry while setting the option to cancel the setting xX Ifyou want the factory settings option in the setting mode press K4 for a long time KA switch is pressed for a long time all options settings return to the factory settings but the settings are saved is not K2 switch is pressed for a long time 7 Segment enters the tracking mode and the settings will be saved 8 2 Samsung Electronics How to set the key function of the outdoor unit cont Key Options
105. ndoor and outdoor units Above Blue Connector Communication IC for cable remote control e Outdoor Unit When there is module communication as in PLUS Il and PLUS Above Red Connector of Main Unit Communication IC between indoor and outdoor units When there is no module communication as in PLUS Il and PLUS Above Yellow Connector of Each Unit Communication IC between outdoor units Other Outdoor Unit Above Communication Connector Communication IC between indoor and outdoor unit Indoor Unit 2 Measure the resistance of the communication IC e Measurement Method Measure the No 5 No 6 Pin resistance Measure the No 5 No 7 Pin resistance Measure the No 5 No 8 Pin resistance 3 Normal and defective judgment is tested for communication IC by using measured resistance e Judging as Normal Each resistance value should be measured in tens of KO to hundreds of kO Difference between the two resistance values should be of some number of kO e Judging as defective One or both are low with tens of Q One or both of them is open Samsung Electronics Outdoor unit communication between lia ai i I1 QUEE Gu a gi m A da Eu LIB el 81 amp E l 153 3 Troubleshooting Troubleshooting 4 3 4 Communication Error between Indoor and Outdoor Units after Tracking Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette
106. ng is complete and after the initial installation if you do not have a history of Auto Trial Operation is completed UP will be dis played 2 Execute the Auto Trial Operation by Tact Switch 3 UP display disappears after Auto Trial Operation is complete normal operation is possible 4 Auto Trial Operation is completed if there is a history normal opera tion execution 4 12 Samsung Electronics Troubleshooting li Reversed Phase No Phase Check Outdoor Unit with 3 Phase power Display 475 for Problem 1 When the power is on check the status of the power from the inverter Three phase L1 R L2 S L3 T order regardless of the power connection on the inverter does not phase power no phase can occur In this case E425 or E466 E366 is displayed and then air conditioner will then maintain normal conditions However N phase must be connected properly ul n n ANNM m n mi ra ma mns E425 Table eue ZAZA eit Ter EF TES m ien di r P e Es z nola sl E amp E ai E aal a ls pla 7 m m amp miu n pu ben a e a m en omar FROM RUE FTE C 1 Check the voltage for L1 R L2 S phase L1 R L3 T phase L2 S L3 T phase 2 If there is any terminal without normal voltage then check the power outside the air conditioner and take the appropriate measures 3 If the 3 phase voltage is normal then use the 3 phase tester to display the phase
107. nits that respond to the tracking Is there no sign of the indoor response on the display during tracking No Yes After 2 minutes find the indoor unit which displays the communication error for the indoor units and check for overlaps in the PCB address setup Remove the communication cable which connects If the indoor unit addresses are overlapped the outdoor unit to the indoor unit and measure the 2 n then a communication error will occur cables of the outdoor unit with a scope In this case a communication error will occur in every indoor unit two or more units with the address incorrectly set Is the voltage between the 2 cables a square wave with DC 0 7V or more No Change the indoor unit PCB after checking the communication cable when there is no peculiarity with the address Yes Check the communication cable which connects the outdoor unit to the indoor unit If there is no peculiarity then connect the indoor units one by one au tofind the indoor unit that is interfering with the communication for Checkthe communication cable and the connector inspection and change the indoor unit PCB of the outdoor unit PCB and change the PCB 4 16 Samsung Electronics X Essential Requirements before PCB Changes in Case of Communication Error Occurrence 1 Find the communication IC near the communication terminal e Indoor Unit Above Red Connector Communication IC between i
108. nnector for the outdoor unit PCB Connect the communication cable again to and change the PCB connect the outdoor unit to the indoor unit Remove all the communication connectors on the PCB of the indoor unit and connect them one by one tofind the indoor unit which interferes with the communication to check and change the indoor unit PCB Case of Communication Error Referto p 50 Essential Requirements before Changing PCB in ill THD 7 c tr IP HIP emen THES 4 18 Samsung Electronics Troubleshooting 4 3 5 Communication error between main and sub Unit of outdoor unit or between outdoor units Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoorunit display S o x x x x O Q x e ON Flash x OFF Judgment Method Refer to the judgment method below Cause of problem Communication error between outdoor units 1 Cause of problem Reset error Key 3 Check the outdoor unit with error U200 U201 U202 U203 a w Is the power supply normal as No 030 15V 5V gt al P Check wiring of outdoor unit _ communication cable Change wiring or connect Yes em m e 7 CheckK13andKl4setup options for outdoor unit
109. nt at heating operation only Cause of problem Suction temperature sensor breakaway defective 1 Cause of problem pm a Is Suction sensor No em and sensor Holder accurately Re insert the sensor attached pnt Re attach the sensor holder sf 2 resistance value reasonable C Defective Sensor Replace Sensor gt Refer to E231 ssi Samsung Electronics 4 37 Troubleshooting 4 3 23 High Pressure sensor error Open Short Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoorunit display o x x O x O x O x O x x O X e ON 9 Flash x OFF Judgment Method Refer to the judgment method below Cause of problem Disconnection or breakdown of relevant sensor 1 High Pressure sensor Open Short error determination method 1 Identifies from when power is supplied or 2 minutes after RESET and only when set is stopped 2 An Open Short error will occur if the input voltage standard range of 0 5V 4 95V is exceeded 2 Inspection Method Did the High Pressure sensor connector get disconnected Please re inspect after connecting from the PCB the connector to the PCB S there ref
110. o Trial Operation As follows in order to accurately measure Indoor Outdoor temperature conditions in the Auto Trial Operation is carried out Cooling Heating Outdoor Temperature C 5 10 15 20 25 30 35 40 45 Indoor Temperature C Heating Cooling mode is automatically selected of Auto Trial Operation Oblique line marked area in the during operation of the system can be protection control Auto Trial Operation of normal judgment can be difficult by the protection control operation If out of warranty coverage and the boundary area Auto Trial Operation judgment accuracy may be reduced 9 2 Samsung Electronics Test Operation 9 1 2 Auto Trial Operation functions 1 Preliminary checking and Auto Trial Operation flow chart 1 Preliminary checking Check the installation status Outdoor and Indoor Unit piping Communication Power Amount of refrigerant added etc 2 Auto Trial Operation methods UP DISPLAY Pressing the K1 Tact Switch for a long time Auto Trial Operation Does error happen Refer to Hovv to troubleshoot of the Undetermined Refer to Service Manual Resulting report of Auto Trial Operation vvill be issued Auto Trial Operation restart and then resulting report of Automatic Commissioning vvill be issued Does display the Undetermined Does display the error or Undetermined Yes Complete Installation specialty
111. oes the Fan Motor connection wire Checkthe connection wire properly connect to the compressor Check the status of the connection UVW FAN Replace PCB Samsung Electronics 4 69 Troubleshooting 4 3 51 Input Output Current sensor error INVERTER1 PCB Input Current sensor INVERTER2 PCB Input Current sensor SS INVERTER1 PCB Output Current sensor Outdoor unit display SUB INVERTER 2 PCB Output Current sensor OUTDOOR FAN PCB FAN1 Output Current sensor 4 OUTDOOR FAN PCB FAN2 Output Current sensor Judgment Method Sensor Output detection Judged as an error if the detected value is more than 2 8V or 0 2V less than Input voltage defective Cause of problem P PCB voltage sensing circuit defective 1 Cause of problem s Power connection accurately connected Power Cable re connection Yes E485 or E385 E468 or E368 E493 or E393 Replace Inverter PCB Replace Fan PCB 4 70 Samsung Electronics Troubleshooting 4 3 52 Outdoor Fan PCB Overvoltage Low voltage error Outdoor unit display N phase wiring error and EMI Fuse short Judgment Method E DC Link Overvoltage Low voltage occurs Check the input wiring EMI Fuse short Cause of problem 1 Cause of problem Is Inverter PCB CN15 and Fan PCB CN11 DC Link voltage connection Connection and then restart it wire accurately connected Replace Fan PCB Samsung Electronics 4 71
112. of the power cable Change the povver cable connection if reversed phase is displayed 4 Take the above measures press the reset key K3 and then check the povver once more 5 Check the EMI PCB Fuse connection and wiring 6 If the same problem occurs after another check check the Inverter PCB A 6 In case of wiring error N phase is changed with one of R S and T with the N phase will operate the power protection Caution function display E425 or stop the power This is not a PCB power defect in this case before PCB replacement please check the power on Samsung Electronics 4 13 Troubleshooting Initial Tracking Communication Check up Display 27 for Problem 1 For the display module of the outdoor unit there are differences in the contents displayed depending on whether the relevant outdoor unit is a master unit or a sub unit 1 Master Unit e The outdoor unit Micom attempts communication with the indoor unit connected to the communication cable F1 F2 when the power is turned on e Basic segment display Step Display content Display i SEG2 SEG3 SEGA At initial power input ui ji gi gi gi VVhile setting SEG2 SEG3 4 SEG3 4 communication Number of f l between indoor and connected indoor Number of communicated units Sid rt n units d X Refer to View Mode for Addressing communication address After communication SEG2 SEG3 4 SEG3 4 e Transmit setting Reception add
113. oler Subcooler In 3 20 Samsung Electronics Disassembly and Reassembly Reference Sheet Pipe Welding Position ll AMO96FXVAJR AM120FXVAJR Front Welding Parts Rear Welding Parts No Welding Position No Welding Position 1 Comp Suction 1 Subcooler EVI Bypass 2 Comp Discharge 2 Accum 4Way 3 Comp Vapor Injection 3 Accum Suction 4 Discharge 0il Sepa 4 Accum Accum Oil Valve 5 4Way Oil Sepa Out 5 Accum EVI Bypass 6 4Way Cond In 6 Vapor Injection EVI Bypass 7 Expansion Cond Out 7 Hot Gas Valve Suction 8 Pinch Pipe 8 Hot Gas Valve 0il Sepa Out 9 Accum Oil Return Valve Suction 9 Oil Return Suction 10 Subcooler Subcooler n LQD Valve Subcooler In 11 Expansion Subcooler Cooling Subcooler In 12 LQD Ball Valve Subcooler In Samsung Electronics 3 21 Disassembly and Reassembly 3 2 3 AMO96FXVAF AM120FXVAF AM144FXVA gt x Electrical 1 11 screws that is fixing CABINET remove Use equipment Part Screw driver 2 Remove 4 screws that is fixing and separate Cover Control Box Use Screw driver 3 Power Compressor Valve Motor Sensor con nector connected to ASSY PCB remove 3 22 Samsung Electronics No Parts Disassembly and Reassembly 4 2 screws had fixed in terminal block cover when Procedure Remark change power terminal block communication terminal block remove ul H LL TIU 5
114. oorunit display 1 Relevant compressor frequency of 60Hz or higher 3 Relevant discharge or Top temperature lt High pressure saturation temperature 4 In case of keep 30 minutes in state that satisfy all above conditions 1 2 3 Judgment Method Suction temperature gt Low pressure saturation temperature 10 C Cause of problem Compressor discharge or Top temperature sensor breakaway and defective Starting badness of compressor 1 Cause of problem Is the Discharge or Top temperature sensor and the Re insert sensor Re attach sensor holder sensor holder correctly attached Is the Discharge or Top temperature sensor resistance Defective sensor Replace sensor value reasonable Refer to E251 4 36 Samsung Electronics Troubleshooting 4 3 22 44 Suction Temperature sensor breakaway error Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Defrost Timer Filter Operation Timer Turbo 24C Indoorunit display x o o x x O O O x e ON OQ Flash x OFF Judgment Method Difference of suction temperature of compressor starting verge and suction temperature that is on present Judgment Method operation If less than 2 C for 30 minutes to keep Judgme
115. operation sending the high pressure refrigerant to indoor unit in heating mode Outdoor EEV Valve In the main cooling operation It s closed so that the Outdoor EEV Valve can control the amount of the refrigerant Hotgas Valve Sending the high pressure gas to low pressure pipe in order to protect low pressure Hotgas Valve 2 In the cooling operation changing high pressure pipe to low pressure pipe EVI SOLV This valve opens when using the vapor Injection EVI BYPASS V This valve opens in the sub cooling control It s closed when using the vapor injection Discharge Temperature Sensor Measure the temperature of the refrigerant discharged from the compressor Suction Temperature Sensor Measure the temperature of the refrigerant to the compressor suction Cond Out Temperature Sensor Measure the temperature of the outdoor heat exchanger of the air conditioning operation EVI In Out Temperature Sensor Measure the temperature of the refrigerant inlet and outlet of the Subcooler Liquid Pipe Temperature Sensor Measure the temperature of supercooling refrigerant in the outdoor unit of the air conditioning Comp Top Temperature Sensor Measure the temperature of compressor top cover Ambient Temperature Sensor Measure the outdoor temperature 7 10 Samsung Electronics 8 Key Options 8 1 Outdoor unit option switch settings 00000 ooooo HE BB 9 ooo x x x mu A K K2 K3 K4
116. or 1 Comp Top Sensor Discharge Sensor High Pressure Switch INSULATION No Model Insu Code Binding Wire 1 AMO72FXVAXH DB62 03808D 3 6 Samsung Electronics Disassembly and Reassembly Binding Wire 1 IM AMO72FXVA KR VALVE 8 SENSOR Valve amp Sensor Z o AWAY Valve High Pressure Sensor Suciton 1 Sensor Suciton 2 Sensor EVI Out Sensor Main Cooling Valve EVI Bypass Valve EVI SOL Valve INSULATION loo El 04 tel Esl k l ml 3 Model Insu Code Binding Wire AMO72FXVA XR DB62 03808B AMO72FXVAXR DB62 04154B VALVE 8 SENSOR Valve amp Sensor Z o Main EEVValve OD EEV Valve RE Accum Return Valve EVI In Sensor Hot Gas 1 Valve Hot Gas 2 Valve Ele leri El fe Liquid Sensor INSULATION Insu Code Binding Wire AMO72FXVAXR DB62 03808E AMO72FXVAXR DB62 04154B AMO72FXVAXR DB62 03808C Samsung Electronics 3 7 Disassembly and Reassembly Binding Wire 2 IM AMO72FXVA gt R 3 8 VALVE 8 SENSOR Valve amp Sensor Low Pressure Sensor T EVI EEV Valve VALVE amp SENSOR Valve amp Sensor Cond Out Sensor Outdoor Temperature Sensor VALVE amp SENSOR Valve amp Sensor Comp Top Sensor Sensor 8 High Pressure Switch INSULATION No Model Insu Code Binding Wire EE AMO72FXVA XR DB62 03808D Sams
117. or Unit MCU e Example of MCU address setting error ex Two among three of MCU address was set to 0 Outdoor Unit PCB Bo e Quantity of Quantity of Indoor Unit MCU Indoor Unit MCU 3 4 26 MCU Address 0 MCU Address 1 MCU Address 2 wo MCU PCB ADDRESS E3EJESEEJEHES EIE ERE MCU PCB ADDRE SEET EXTA 6 c Samsung Electronics Troubleshooting 4 3 12 MCU branch part setup error Overlapping Indoor unit Address setup 1 Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C Indoor unit display x R 2 x P QO Flash x OFF Criteria e Occurs when an indoor unit address setup switch in MCU has been overlapped Cause of problem e Repeated indoor unit address 1 Howto check Check the setup switch for the number of indoor units in MCU After completing resetting press the outdoor unit s K3 button to reset or turn off to restart MCU BOX 0 MCU address setup MCU PCB 0 OFF HHH Branch part ise setup Indoor unit address MCU BOX 1 MCU address setup MCU PCB 1 ON OFF HH Ce Branch part use setup Indoor unit address Samsung Electronics 4 27 Troubleshooting 4 3 13 MCU branch
118. part setup error Set as being used without connection to an Indoor unit Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoor unit display x x 8 x D Flash x OFF Criteria e Occurs when MCU PIPE is set as being used yet not connected to an indoor unit Cause of problem Pipe is not installed to the indoor unit with assigned address on MCU 1 Howto check Adjust the Dip switch that sets up the use of MCU branch part to Not Used After completing resetting press the outdoor unit s K3 button to reset or turn off to restart MCU PCB OFF Eu n 0600 0 9 4 28 Samsung Electronics Troubleshooting 4 3 14 MCU branch part setup error Connect an Indoor unit to a branch part not being used Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Fan Filter MPI Operation Defrost Operation Indoor unit display x o o p o E x 9 0N QO Flash x OFF Criteria e Occurs when MCU PIPE is turned off yet an indoor unit is registered Cause of problem e Indoor unit connection to the unused branch part 1 Howto check
119. r unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Operation Timer Turbo 24C Indoorunit display O x x O x O x O O x x O S ON 9 Flash x OFF Judgment Method Refer to the judgment method below Cause of problem Disconnection or breakdown of relevant sensor 1 Cause of problem LIQUID connector for the Liquid Pipe Temperature senserbreak away from the PCB Restart operation after connecting the connector to PCB Resistance value measure part Temperature C Resistance KO 70 2 2 60 3 0 50 4 2 40 5 8 30 8 3 12 1 18 0 27 3 43 0 Separate the connector of the Liquid Pipe Temperature sensor from the PCB and measure the resistance value between the 2 terminals LIQUID Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the Liquid Pipe Temperature sensor itself Restart operation after replace the PCB Samsung Electronics 4 41 Troubleshooting 4 3 27 EVI In Temperature sensor error Open Short Outdoor unit display Indoorunit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost T
120. rature is over 15 C E 443 Operation prohibited due to low pressure E 445 CCH is deatched E 446 Error due to operation failure of Fan1 E 447 Motor wire of Fan1 is not connected E 448 Lock error on Fan1 E 452 Error due to ZPC detection circuit problem or power failure E 453 Error due to overheated motor of outdoor unit s Fan1 Samsung Electronics Troubleshooting M Diagnosis and Adjustment Error Code gt Error code related to the Communications Settings HW cont Error mode Cause E 455 Error due to overheated IPM of Fan1 E 461 Error due to operation failure of inverter compressor 1 E 462 Compressor stop due to full current control or error due to low current on CT2 E 464 Error due to over current of inverter compressor 1 E 465 V limit error of inverter compressor 1 E 466 Error due to over voltage low voltage of inveter PBA1 E 467 Error due to unconnected wire of compressor 1 E 468 Output current sensor error of inverter PBA1 E 469 DC voltage sensor error of inver PBA1 E 474 Heat sink temperature sensor error of inverter PBA1 E 478 Error due to overcurrent of Fan1 E 485 Error due to input current of inverter 1 E 486 Error due to over voltage low voltage of Fan E 487 Hall IC error of Fan1 E 489 V limit error on Fan1 of compressor E 493 Output current sensor error of Fan1 E 496 DC voltage sensor error of Fan1 E 499 Heat sink temperat
121. refrigerant is kept inside the product or the pipe then remove the refrigerant prior to welding If the welding is carried out while the refrigerant is kept inside the welding cannot be properly performed This will also produce noxious gas that is a health hazard This leakage will also explode with the refrigerant and oil due to an increase in the refrigerant pressure posing a danger to workers Please remove the oxide produced inside the pipe during the welding with nitrogen gas Using another gas may cause harm to the product or others 1 6 Precautions for Additional Supplement of Air Conditioner Refrigerant Precisely calculate the refrigerant by using a scale and S net and proceed with the test operation Excessive supplement can cause harm to the product since it can cause an inflow of the liquid refrigerant into the compressor Do not heat the refrigerant container for a forced injection This may cause harm to the product or others since the refrigerant container may burst Do not operate the product after removing the product safety pressure switch and sensor If the product is blocked inside then this may cause harm to the product or others due to the excess pressure increase of the refrigerant gas 1 7 Other Precautions O There should be no leakage of the pipes after installation When withdrawing the refrigerant the compressor should be stopped before removing the connecting pipe If the compressor is operating while
122. requency 65Hz 40 minutes maintaining EVI EEV and Intercooler leakage excessive refrigerant amount Outdoor Check Valve inserted opposite Cause of problem P Indoor Unit EEV leakage direct connection between Indoor Liquid Pipe and the Gas Pipe Indoor Unit EEV leakage confirmation In case it is normal the EVA In and Out temperatures for the blast may rise Operate cooling in one room any of the selected indoor unit Remainder Indoor Unit can confirm simply at the blast operation n case it is normal the EVA IN OUT temperature of indoor unit that is on blast operation within 5 minutes is ascending to value that approaching in indoor temperature 3X Setting as opposed to the indoor unit blast operation and cooling operation functions of the indoor unit and then check again X If cooling operation is operated for low temperature with excessive refrigerant amount then the DSH may descend 1 Causeof problem No Is EVI EEV connector accurately connected to PCB Reconnect connector Is EEV coil accurately installed Reassemble coil Check the EVI EEV leakage Replace EVI EEV Breakdown Check the Intercooler leakage Normal Replace Intercooler Breakdown Check the Indoor Unit EEV leakage Normal Replace Indoor Unit EEV Checkthe connection for Indoor Unit Pipe Connect liquid pipe gas pipe directly Reinstall pipe Checkt
123. ress VU A VU 0 Reception address usual occasion MCU C MCU 1 in decimal number SEG SECO SECS SEGA I U Indoor unit Outdoor Unit Display Parts e If the number of indoor units set by the outdoor unit is not in accordance with the number of indoor units that succeeded with communication then the four displaying parts will display EH i 2 Sub Slave Unit e The two left hand displays show its own address and the two right hand displays show the outdoor unit s address Main address C8 Sub1 address C9 Sub2 address CA Sub3 address CB 2 The number of the indoor Units Connected to the outdoor unit can be configured by using the indoor unit installation quantity setup switch WH DVM INVERTER MAIN s m HNMT Em nn IS NE j aan goo o o oo o B SS AAA AA o fe oa E TEE doo 09d 000055 gt H rm 0000 a ai i K K2 KA KA 2 4 uni mi ba m m a EX p H 4 D D E i i o e gie TF y AM E la TE Blea GH s nt sE d D ded E d s d Er E a Tr rise Indoor Unit MCU E ls D e l in ai Installed Installed 2 a das Guantity Guantity d D g 75 ea x FE pl a nu g 24 D il B a 5 n ir SEH SEE 00030 ou e Un CH CH m ug ea KA D ut 12 a 000000000 n lu a M Plc As FROM HUE PTA Fr
124. rigerant inside the set Please check by connecting the menu folder gauge to the service valve No Refill refrigerant after vacuum Yes Out of the PCB High Pressure sensor terminals is there voltage between pins 3 and 4 5V 2 Replace PCB Yes Replace High Pressure sensor The V markis the 1st pin on the PCB 4 38 Samsung Electronics Troubleshooting 4 3 24 Low Pressure sensor error Open Short Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C O x x Q x O x x O x x S ON QO Flash x OFF Indoorunit display Judgment Method Refer to the judgment method below Cause of problem Disconnection or breakdown of relevant sensor 1 Low Pressure sensor Open Short error determination method 1 Identifies from when power is supplied or 2 minutes after RESET and only when set is stopped 2 An Open Short error will occur if the input voltage standard range of 0 5V 4 95V is exceeded 2 Inspection Method Did the Low Pressure sensor connector Please re inspect after connecting get disconnected from the PCB the connector to the PCB s there refrigerant inside the set Please check by connecting the menu folder gauge to the service valve No
125. rol Enhanced fixing of load sensor wire FAN PCB Use controller of 3 phase power Prevented phase unbalance Temperature protection of IPM Inverter PCB Compressor Control PCB Applied inverter Compressor Refrigerant cooling method Magnet S W Did Power Relay mount to PCB EMI PCB 3 phase power EMI PCB Fuse mount Communication Terminal block Did Communication Terminal block mount to PCB 2 4 Samsung Electronics Product Specifications Changes in comparison to basic mode cont IM PIPECOOLING Changed item and feature After changed Pipe New Pipe Cooling for cooling of Unapplied Cooling inverter PCB Refrigerant cooling system It is cooling technology of inverter circuit that use refrigerating cycle technology Cooling of inverter circuit Changed item and feature After changed HP After changed HR New inverter Tube cycle technology structure application New piping Samsung Electronics 2 5 Product Specifications 2 1 3 Structure of product AMO72FXVAF K CONTROL BOX ur TH Gas pipe y L nil separator Liquid pipe Compressor AMO72FXVAJ CONTROL BOX Fi Heat exchanger Kb H 4 VVAY V V Gas pipe La separator Liquid pipe Compressor TRANS BOX AMOO96FXVAF K AM120FXVAF lt 144 CONTROL BOX Accumulator Int
126. shooting Inverter Overcurrent error cont m Compressor applied one m Compressor applied two nverter1 Compressor2 Before change After change Measure Inverter2 Compressor1 to the wiring change Error of No 1 Error of No 1 Replace No 1 Compressor Compressor Compressor Error of No 1 Error of No 2 Replace No 1 Compressor Compressor Inverter PCB Error of No 2 Error of No 2 Replace No 2 Restart Compressor Compressor Compressor Error of No 2 Error of No 1 Replace No 2 Compressor Compressor Inverter PCB Before change After change Error depending on the situation replace the Compressor or PCB Samsung Electronics 4 65 Troubleshooting IPM IGBT breakdown diagnostics Inverter PCB 1 Preparations before checking 1 Power Off 2 IPM failure discharge mode may not work properly Therefore wait more than 15 minutes after the Power Off 3 Remove all ofthe Inverter PCB connectors and wire that is fixed as screw Include wire that is fixed to compressor and DC Reactor 4 Prepare the digital multi tester 2 Inspection Method 1 Refer to Figure1 and Table1 respectively the resistance value and diode voltage value measure 2 According to the criterion in Table 1 to determine whether the failure of IPM Measured Point Division O 4 Criterion Remark P IGBT P IGBT Measure P IGBT the resistance values U More than 3 MQ V Measurement error can occur for reasons s W i uch as the
127. splay Indoorunit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C d X X d x d x d X d X X Q S ON QO Flash x OFF Judgment Method Refer to the judgment method below Cause of problem Outdoor temperature sensor Open Short is defective 1 Causeof problem Did the outside temperature sensor connector break away from the PCB Restart operation after connecting the connector to the PCB Resistance value measure part After separating the outdoor temperature sensor connector from the PCB measure the resistance value between the terminals Temperature C Resistance KO Did the resistance value significantly stray from the following temperature table Replace this since it is the defective of the outdoor temperature sensor itself Restart operation after replace the PCB 4 32 Samsung Electronics Troubleshooting 4 3 18 Cond Out Temperature Sensor Error Open Short Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter 1Operation Timer Turbo 24C Indoor
128. splay x o o o X x x O Q X 0N Flash x OFF When tum on the power and check the status of the power from the inverter If the phase does not connect the power no phase E425 or E466 E366 is displayed Air conditioner to maintain the normal state Judgment Method However N phase must be properly connected Check the input wiring f Cause of problem EMI Fuse short 1 Cause of problem DidtheMain Terminal Block and Power R S T Nis connection 380V of the R S T and then restart No Power BOX Terminal Check the phase to phase connected properly d the Reactor T o Terminal is connected m properly No Low voltage error during this initial charge usi the EMI PCB Fuseis short Replace Fuse if the rectifier diode of the inverter me PCB is normal N phase must be properly connected _ Is EMI PCB CN21 ge 7 a Inverter PCB accurately connected 1 Replace Inverter PCB Samsung Electronics 4 49 Troubleshooting 4 3 35 E 4 H Suspension of starting by abnormal compression ratio Outdoor unit display Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C 27C Indoorunit display E S 0 Q 9 x
129. ssor 2 E 366 Error due to over voltage low voltage of inverter PBA2 E 367 Error due to unconnected wire of compressor 2 E 368 Output current sensor error of inverter PBA2 E 369 DC voltage sensor error of inverter PBA2 E 374 Heat sink temperature sensor error of inverter PBA2 E 378 Error due to overcurrent of Fan2 E 385 Error due to input current of inverter 2 E 386 Over voltage low voltage error of Fan2 E 387 Hall IC connection error of Fan2 E 389 V limit error on Fan2 of compressor E 393 Output current sensor error of Fan2 E 396 DC voltage sensor error of Fan2 E 399 Heat sink temperature sensor error of Fan2 E 400 Error due to overheat caused by contact failure on IPM of Inverter PBA2 E 407 Compressor operation stop due to high pressure protection control E 410 Compressor operation stop due to low pressure protection control or refrigerant leakage E 416 Compressor operation stop due to discharge temperature protection control E 425 Phase reversal or phase failure 39 outdoor unit wiring R S T N connection error on 3 phase Input E 428 Compressor operation stop due abnormal compression ratio E 438 EVI ESC EEV leakage or internal leakage of intercooler or incorrect connector insertion of EVI ESC EEV E 439 Error due to refrigerant leakage E 440 Heating mode restriction due to high air temperature E 441 Cooling mode restriction due to lovv air temperature E 442 Refrigerant charing restriction in heating mode when air tempe
130. store Service inquiries f the problem of more than one components at the same time occurs accurate decisions can be difficult 3 Other Precautions f stop the Sub outdoor during the Auto Trial Operation by load conditions in status of module combination Outdoor Unit does not judge Undetermined If the Outdoor Unit with a history of operation Auto Trial Operation inclusion Must be carried out Auto Trial Operation after 1 hour from final operation stopped In this case the vacuum mode of the air must maintain for more than 5 minutes Restart of Auto Trial Operation after troubleshoot the item that Undetermined Samsung Electronics 9 3 Test Operation 9 1 3 How to troubleshoot of the Undetermined 1 Indoor Unit Temperature sensor m Inspection item Indoor temperature of each Indoor Unit EVA In Out Temperature sensor m Error code None The resulting report Undetermined m Determine the status of the Temperature sensor of the Indoor Unit installed before the compressor start m f the judgment of Indoor Unit temperature sensor is Undetermined Checking in accordance with the following order Is deviations of the Yes Is Indoor temperature of No Does Temperature sensor Yes Is Outdoor Unit Yes Check the breakaway of sensor or replace PCB Is deviations of the Indoor Unit Temperature sensors less than 10 C No Yes IN Caution Bl
131. t Temperature C Resistance KO 70 22 60 3 0 50 4 2 40 5 8 30 8 3 20 12 1 10 18 0 0 27 3 10 43 0 Separate the connector of the Suction 2 sensor from the PCB and measure the resistance value between the two terminals Did the resistance value significantly stray from the following temperature table Change this part as it is the fault of the outdoor Suction 2 sensor itself Restart operation after changing PCB 4 44 Samsung Electronics Troubleshooting 4 3 30 Measures of other outdoor unit error d ben m uv m x mal mal mal FAN2 wire unconnected error FAN2 PBA IPM temperature sensor error Lu mm Outdoor unit FAN1 wire unconnected error FAN1 PBA IPM temperature sensor error COMP 2 wire unconnected error Inverter PBA2 IGBT temperature sensor error 1 ke display ey Na Nam gt A l l m m COMP 1 wire unconnected error Inverter PBA1 IGBT temperature sensor error Ju Ln wp mal Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Operation Timer Turbo 24C 27C Indoor Unit Display x x x x x ON QO Flash x OFF Judgment Method Refer to the measures code below Cause of problem Refer to the measures code below 1 Me
132. t EEPROM and then reset Download relevant model EEPROM and then reset X Execute automatic commissioning for UP cancellation after EEPROM download 4 74 Samsung Electronics Troubleshooting 4 3 56 Model mismatching of Indoor unit Outdoor unit display 5 Judgment Method Prior to July 2011 if the software version of the indoor unit Prior to July 2011 if the software version of the indoor unit Check the software version of the indoor unit Cause of problem Check whether the support of the indoor unit 1 Causeof problem Does connected indoor unit become compatible with DVM INV No Replace the indoor unit that is compatible with the DVM INV Yes s software version of indoor unit since July 2011 No Software upgrade Yes Replace indoor unit PCB Samsung Electronics 4 75 Troubleshooting 4 3 57 Error due to using single type outdoor unit in a module installation Outdoor Unit Display Indoor Unit Display Judgment Method e Refer to the judgment method below Special Cause Using single type outdoor unit non modular model in a module installation 1 Causeof problem Is outdoor unit single type exclusive use model non modular model sthe outdoor unit EEPROM accurately connected Connect outdoor unit EEPROM and to connector then reset Is the outdoor unit by module installed Outdoor unit single type exclusive use model
133. termined Checking in accordance with the following order Is Outdoor Unit Power supply specifications and wiring Confirmation and Measures status normal When Outdoor Unit is stopped state Is current CT value of Compressor 0 Replace Inverter PCB Is resistance between the phase of compressor normal Restart Auto Trial Operation after current meter installation Isthe current measurement results of the compressor and CT Replace Inverter PCB sensor have the same value Is refrigerant in the system properly Is Compressor current CT value normal Adjusts the refrigerant Addition Emitted Ils operation current of Compressor normal Replace Compressor Samsung Electronics 9 9 Test Operation 7 Cycle status m Inspection item Cycle status of Outdoor Unit m Error code None The resulting report Undetermined m Determine the Cycle status of the each Outdoor Unit m If the judgment of Cycle status is Undetermined Checking in accordance with the following order Auto Trial Operation results l Check the corresponding Valve is Valve and Pressure sensor normal p g Sensor and Compressor XX Resistance measurement method After separating the Temperature sensor Inspection and measures of connector from the PCB measure Is Discharge Temperature sensor of corresponding Outdoor Unit Discharge Temperature sensor 1U7
134. the exterior of the rear side of the product Completely remove dust or foreign substances on the housing connection and inspection parts when performing repairs This can prevent fire hazards for tracking short etc Please tighten the service valve of the outdoor unit and the valve cap of the charging valve as securely as possible by using a monkey spanner Check whether the parts are properly and securely assembled after performing repairs These parts should be in the same condition as before the repair 1 2 Precautions for the Static Electricity and PL O Please carefully handle the PCB power terminal during repair and measurement when it is turned on since it is vulnerable to static electricity Please wear insulation gloves before performing PCB repair and measurement Check if the place of installation is at least 2m away from electronic appliances such as TV video players and stereos This can cause irregular noise or degrade the picture quality Please make sure the customer does not directly repair the product Arbitrary dismantling may result in electric shock or fire 1 3 Precautions for the Safety 6 Do not pull or touch the power plug or the subsidiary power switch with wet hands This may result in electric shock or fire 6 ifthe power line or the power plug is damaged then it must be changed since this is a hazard O Do not bend the wire too much or position it so that it can be damaged by
135. the refrigerant pipe is not correctly connected and the service valve is opened then air and other substances can enter the pipe The interior of the refrigerant cycle may then build up excessive high pressure resulting in explosion and damage Samsung Electronics 2 Product Specifications 2 1 The Feature of Product 2 1 1 Feature M Dual Smart Inverter System DSC System DSI System Dual Smart Inverter SSC SSC BLDC Inverter Motor 20 160Hz driving 3 generation Vapor Injection DVI variable DVI constant speed AC Motor 2 generation Vapor Injection NM Performance maximization of low temperature heating Low Pressure a ws 3 generation Refrigerant Inlet L Vapor Injection 3 generation Vapor Injection Medium Pressure Refrigerant Inlet Inverter base IM Dual SSC System Technology When load changes capacity amendment that is soft by continuous operation of Dual Inverter is available Capacity Variable Compressor driving When load changes is variable by fast inverter frequency m Amenities elevation 0 5 C Samsung Electronics 2 1 Product Specifications Feature cont M Inverter circuit refrigerant cooling technology Applied high efficiency refrigerant cooling circuit Secured stable Inverter PCB cooling performance Air cooling method When natural convection electric heat performance is lo
136. the system properly Yes AN Caution If the judgment of Service Valve Undetermined Display the error to corresponding Outdoor Unit and then Auto Trial Operation is exited Stop the overall system If inspect service valve Check the Liquid pipe and Gas pipe Service Valve If the frost formation of Outdoor Heat exchanger continue Trial Operation until defrost operation begins And then complete after add more than 1 hour operation after end of defrost operation Execute checking of 4Way Valve and Main EEV together 4Way Valve abnormal symptoms 1 Strange noise of compressor to operate 2 Indoor unit EVA In Out maintain the temperature below zero Less than 0 C 3 4Way Valve Refer to the Service Manual Main EEV abnormal symptoms 1 When closed Main EEV opening Compressor suction degree of overheat impossible to ensure and less than DSH 20K 2 When opened Main EEV opening Compressor suction degree of overheat is high status 3 Main EEV Refer to the Service Manual Pressure sensor abnormal symptoms Refer to the Service Manual 9 8 Samsung Electronics Test Operation 6 Abnormal operation of the Compressor m Inspection item Operation current of Outdoor Unit Compressor m Error code None The resulting report Undetermined m Determine the status of the operating current of the each Outdoor Unit Compressor m f the judgment of operation current of Outdoor Unit Compressor is Unde
137. thod of manually assigned addresses in K4 View mode Ex MANU A004 MANU A005 MANU A006 NNNM Mu AAA T a SEG2 SEG3A Address No 1 gt 0 1 8 4 Indoor unit A Indoor unit 0 Samsung Electronics 9 Test Operation 9 1 Auto Trial Operation 9 1 1 Auto Trial Operation Synopsis 1 What is the Auto Trial Operation DVM S main components defective check and check the status of the installation provide guidelines that can promptly and accurately resolve the problems that may occur in the field If does not end the Auto Trial Operation normal operation is impossible to enter it should protect the system from the abnormal state UP 2 Auto Trial Operation Preliminary checking 1 Check the Power cable of Indoor Outdoor Unit and communication wire 2 Turn on the power 6 hours before to start the Auto Trial Operation Crankcase heater to be heated sufficiently 3 Check before applying power voltage and phase using a phase tester and voltmeter R S T N Terminal Check the between the wire 380V R S S T T R phase to phase 220V R N S N T N 4 Power on perform the tracking Outdoor Unit inspects Indoor Unit and optional 5 Card to verify the installation of the control box front must be record the installation details x Necessarily turn on the power 6 hours before to start the Auto Trial Operation 3 How to use the Auto Trial Operation 1 If does
138. ts damage 8 2 screws had fixed on side refrigerant cooling part inside remove Samsung Electronics Disassembly and Reassembly Binding Wire 1 ll AMO96FXVAJH AM120FXVAJH VALVE 8 SENSOR No Valve amp Sensor 1 AWAY Valve Le 2 High Pressure Sensor 3 EVI Bypass Valve INSULATION Model Insu Code Binding Wire TRI reid m AMO96FXVAJH AM120FXVAJH DB62 03808G AA AN E D VALVE 8 SENSOR INSULATION Model Insu Code Binding Wire AMO96FXVAJH AM120FXVAJH DB62 04154D DB62 04154D AM120FXVAJH AMO96FXVAJH Samsung Electronics 3 15 Disassembly and Reassembly Binding Wire 2 IM AMO96FXVAJH AM120FXVAJH VALVE 8 SENSOR No Valve amp Sensor Expansion Valve 2 EVIEEVValve 3 Accum Oil Return Valve 4 High Pressure Switch INSULATION AMO96FXVAJH 0862 03808 AMO96FXVAJH AM120FXVAJH AMO96FXVAJH AMI20FXVAJH DB62 03808E VALVE amp SENSOR Valve amp Sensor Cond Out Sensor Outdoor Temperature Sensor VALVE amp SENSOR Valve amp Sensor du Comp Top Sensor Discharge Sensor INSULATION Model Insu Code Binding Wire AMO96FXVAJH AM120FXVAJH DB
139. ung Electronics Disassembly and Reassembly Binding Wire 3 IM AMO72FXVAXX gt Comp Wire fix by Holder Wire gt Fix Comp Wire Core to Bracket Beam Control Box using large size Cable Tie 350mm gt Separate double layer structure of C Box after remove 3 screws and connector Samsung Electronics 3 9 Disassembly and Reassembly Reference Sheet Pipe Welding Position AMO72FXVAXH FrontWelding Parts Rear Welding Parts Welding Position Welding Position Comp Suction Cooling Subcooler Comp Discharge Subcooler EVI Bypass Comp Vapor Injection Accum 4Way Discharge Oil Sepa Accum Accum Oil Vavle 4Way Oil Sepa Out Oil Return Suction Accum EVI Bypass Vapor Injection EVI Bypass Hot Gas Vavle Suction Hot Gas Vavle 0il Sepa Out Expansion Subcooler 4Way Cond In Pinch Pipe Expansion Cond Out Accum Oil Return Valve Suction 11 Liquid Ball Vavle Colling 12 Accum Suction Samsung Electronics Reference Sheet Pipe Welding Position AMO72FXVA gt R Front Welding Parts Rear Welding Parts 2 Welding Position Z o Disassembly and Reassembly Welding Position Comp Suction Cooling Subcooler Comp Discharge Subcooler EVI Bypass Comp Vapor Injection Accum 4Way Discharge 0il Sepa Accum Accum Oil Vavle 4Way Oil Sepa Out Accum EVI Bypass 4Way Cond I
140. unit display o x x O x x O D Flash x OFF 1 Cause of problem Did the outdoor Cond Out sensor connector break away from the PCB Restart operation after connecting the connector to the PCB Resistance value measure part Temperature C Resistance KO 70 2 2 60 3 0 50 4 2 40 5 8 30 8 3 12 1 18 0 27 5 43 0 After separating the outdoor Cond Out sensor connector from the PCB measure the resistance value between the two terminals Did the resistance value significantly stray from the following temperature table Replace this part as it is the defective of the outdoor Cond Out sensor itself Restart operation after replace the PCB Samsung Electronics 4 33 Troubleshooting 4 3 19 Outdoor Cond Out sensor breakaway error 2 Outdoor unit display E i Duct Cassette 1 2 Way Console Celing Cassette 4 Mini4 Way Wall mounted NeoForte Operation Defrost Timer Fan Filter MPI Operation Defrost Timer Filter Timer Turbo 24C Indoorunit display o x X X Q Q x x O Q S ON 9 Flash x OFF Judgment Method Refer to the judgment method below Cause of problem 1 Judgment Method 1 No inspection for Cooling operation Outdoor Cond Out sensor breakaway defective relevant path bloc
141. ure sensor error of Fan1 E 500 Error due to overheat caused by contact failure on IPM of Inverter PBA1 E 503 Error due to alert the user to check if the service valve is closed E 504 Error due to self diagnosis of compressor operation E 505 Error due to self diagnosis of high pressure sensor E 506 Error due to self diagnosis of low pressure sensor E 560 Outdoor unit s option switch setting error when inappropriate option switch is on E 563 Error due to module installation of indoor unit with old version Micom version needs to be checked E 573 Error due to using single type outdoor unit in a module installation E 702 Error due to closed EEV of indoor unit 1st detection E 703 Error due to opened EEV of indoor unit 1st detection UP Auto Trial Operation incompleted UnPrepared Samsung Electronics 4 11 4 3 Appropriate Measures for Different Symptom 4 3 1 Outdoor Unit Test Operation Flow Preilminary check for the Test Operation Execute the Auto Trial Operation Was Auto Trial Operation Completed LED display the UP UnPrepared Trial Operation available If the Auto Trial Operation is not completed UP is displyed UnPrepared AL 1 1 Hos 4 tt HE HE d ua Prior to starting the air conditioning operation after the ini UM lell tial installation and Auto Trial Operation is carried out This process the stable operation to protect the system and verify the defect ofthe product 1 Tracki
142. urs in the outdoor When carried out the service Method of Entry K2 Tact Switch 6 times Start pattern Heating commissioning pattern Defrost start Defrost start It is after 10 minutes which Safety Start finishes Defrost off General defrost operation conditions are the same as Etc Defrost shut down and stop the normal pattern of the outdoor unit stop M Forced oil recovery operation gt Forced oil recovery operation Oil recovery in the outdoor unit for the purpose of moving installation if necessary Method of Entry K2 Tact Switch 7 times Start pattern Outdoor temperature is more than 50 F Cooling commissioning Outdoor temperature is less than 50 F Heating commissioning Oil recovery start Oil recovery start It is after 10 minutes which Safety Start finishes Etc Oil recovery shut down and stop the normal pattern of the outdoor unit stop 4 6 Samsung Electronics Troubleshooting 4 2 2 DVM S Models EEPROM Code Table Model Name EEP Code AMO72FXVAFH DB82 01437A AMO96FXVAFH DB82 01439A AM120FXVAFR CO WT Wl nN AM144FXVAFR DB82 01451A AMO72FXVAJH DB82 01438A AMO96FXVAJH DB82 01440A AM120FXVAJH DB82 01442A AM144FXVAJH DB82 01444A AMO72FXVAJR DB82 01452A AMO96FXVAJR DB82 01453A AM120FXVAJR DB82 01454A 4 2 3 Number Display Method Outdoor Unit MCU Cable remote control wall mount etc ll How to Display Integrated Error Code
143. utdoor unit inside is about 1 5kg ordinarily Temperature can remain more refrigerant because refrigerant fills to Accumulator in the winter day 2 Refer to factory charging refrigerant had registered to Label of outdoor unit 3 Can get help that decide an addition refrigerant quantity if use refrigerant quantity decision function that use S Checker Turn off the power linked by outdoor unit Separate compressor that broke down from outdoor unit 3 Confirm through manifold gauge whether refrigerant of outdoor unit was reclaimed all necessarily before use welding machine for replace of compressor Measure quantity of broke down oil of compressor Confirm state and color of compressor oil that broke down When is judged that oil was polluted compressor beside ASTM more than 3 measures quantity of replace and oil Decide quantity of oil to pour in addition according to sheep of changing oil of compressors Change by new compressor Add oil according to sheep of oil that pour decided addition before Establish again by vacuum mode after connect power Execute leakage examination using nitrogen gt vacuum work Add a refrigerant quantity deciding from step 5 Samsung Electronics Execute Auto Trial Operation after open SVC Valve 3 33 Disassembly and Reassembly lll Point to consider at compressor exchange 1 Oil color decision availability ofthat change compressor that is besi
144. w and is high load efficiency is fallen Refrigerant cooling system Forced circulation electric heat performance is high and control of thermal conductivity is 10 times higher than air load is available Refrigerant cooling system It is cooling technology of inverter circuit that use refrigerating cycle technology Cooling of inverter circuit 2 2 Samsung Electronics 2 1 2 Changes in comparison to basic mode Changed item and feature Product Specifications After changed CABINET Change the color TOUCH GRAY gt EARTH BROWN Wire Harness installation part change LOGO change IM Control Box amp PCB Changed part Changed item and feature After changed Control Box structure Monolayer structure gt Double Layer Structure Inverter technology integration Inverter control circuit composition C Box volume maximum use Built in type Controller embodi ment Integrated power supply control unit Piping service easiness Samsung Electronics 2 3 Product Specifications Changes in comparison to basic mode cont Changed part Changed item and feature Basic After changed Main PCB Change Main PCB Separation for load control Option resistance delete by model standardization When do PCB replace need option download Hub PCB Hub PCB newly application Separation for load cont

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