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1. Samsung Electronics C CN030 4WAY VALVE 1 3 AC220V 5 718337 1 5 EEV SIGNAL 6 DC12V 2 KARAT E Ee EU 126 1 28 SIGNAL SUB PCB 6 CN302 Communication COM1 1 COM1 F1 2 COM2 F2 1 2 OLP THERMISTOR 7 251 1 2 OUTDOOR THERMISTOR 3 4 DISCHARGE THERMISTOR 5 6 COND THERMISTOR PCB Diagram and Parts List D it1 DC12V 2 RXD 3 TXD 4 GND CN201 Downloader 1 410 Download 9 CN901 MOTOR 1 DV310V 3 GND 4 DC15V 5 FAN PWM 6 FAN Feedback Samsung Electronics CN551 Downloader 1 10 Download i0 451 1 COMP U Phase 2 V Phase 3 COMP W Phase 2 CN051 Reactor 1 2 Reactor 5 5 PCB Diagram and Parts List 5 2 2 SUB PCB ACO18JXADCH 28pIn 00 COCO 00000000
2. Samsung Electronics 4 9 Troubleshooting 4 2 Items to check before diagnostics 4 2 1 Test run mode and View mode Display Option Key KEY Key Operation 7 segment Display Press once Heating test run Press twice Defrost test run BLANK BLANK 1 BLANK BLANK Press once Cooling test run c BLANK BLANK K2 K3 Reset KA View mode Refer to View mode display View mode display X Press the switch to view the information on the system status as follows of Press Display content SEG2 SEG3 SEGA Order frequency Three digits Two digits One digit Hz Current frequency Three digits Two digits One digit Hz Number of indoor units Three digits Two digits One digit Unit Out sensor Two digits One digit e Ui UO Ns Discharge sensor Three digits 1 NO OO l O Three digits Two digits One digit Two digits One digit One digit One digit First decimal Three digits Two digits rpm Two digits One digit Two digits One digit One digit First decimal 1 EEV B Three digits Total indoor unit capacity C Two digits Protection control D x 019 1 Heating 14 Heatproof plate temperature 15 SAW check Ver 1 Long Press once Main MICOM version Year Hex Protection control 0 no protection control 1 freezing 2 non stop defr
3. 0 L U o E O O tuse 6 d 9 18 o q o o 9 o a B olo 5 a P 50 Que Roes _ a o of o 6 6664 001 006 m o Ew 7 QU p Ww N LEAD FREE 0021 66068 cet 62 cnm 2706 ves 0841 04000A VAISI 8 ei cess lt cust BLK 22 I O O L gt DOOR doo Reog 180801 9 p 0 5 LED802 4 2 o 8802 1 0809 4 4 4 2 nee RISI 5 o O a E C El pis eios BCU 0182 v x 3 REB 3 ete GR O ee o oe 5 T 9o Rea ET 5 lg WHT EN2S2 R259 CHD la R266 5 ig m 5 16159 21150 Be o o o o 48103 5 umm 2 5 CEIS 401 T 5 L680 SS gt 5 aks 2 16802 V o o T sd B w H os ae CND 5 ze gt 16202 JO 9 2229 8 4 ble 88829 v Bem sz id m TR os gt d o J 6 02 o 8698 REES o B TTE asss
4. AN FAN2 OPTION lan If the unit is using one fan Don t connect fan motor on 91 SKY BLU ii in the inverter PCB BLU a BRN 1123141516 N BRN SKY BLU C EC E e BRN SKY BLU CN31 WHT S Ie 11213 REACTOR F901 CN101 11213 13 154 250y WHT e Y TET m CNO CN PI ere 23 1123 31111213 als WHT CN702 1CN701 CN703 777 OLP TEMP z EL RED BLU 6 6 En 5 5 DISCHARGE TEMP REACTOR A1 10 CN22 FH101 CN403 57 COND TEMP REACTOR B1 10 RED 250V WHT T REACTOR A2 TIT 001 REACTOR B2 BLK COND OUT 25 C 10K FAN2 OPTION 10 CN306 8 CN21 111 20 BLK 55 CN91 tM WET 81 WHT CN802 1414 5 Jae YT DOWNLOAD 5 Ed s ENCORDER CB i 7 CN806 SE 313 WHT 55 2 2 EEPROM CN803 INVERTER au B 661 n 11 aes CB 25 EM 313 opp CN801 3 3 ERROR COMP NIE RED 2 2 RED LL 112 3 71 690 151557 BLK 6 6 F101 WHT 515 T CN305 414 250V BLU WHT 3 3 212 r 92 N DC12V A AC NA AA RED 313 1 dlfgy MODE CN501 Xo OO EARTH SELECTOR WHT b BRN S Y BLU 7 2 CN401 1313 LOW PRESSURE BR YEL GRN L sls 1 BLU 22 W SENSOR SKY BLU 14 4 BLU 1 33 305 CN402 pata BLK RED 12 12 RED 3 3 HIGH PRESSURE 1 212 SENSOR C Ms BLU EN304 BIK 1 RED 144 98 8
5. Feature General Set NASA Indoor unit NASA Outdoor unit NASA General Set Non NASA Indoor unit Non NASA Outdoor unit Non NASA Feature 2 Way CST Mini 4 Way CST 4 Way CST MSP Duct LSP Duct Fresh Air Intake Duct Ceiling Conceiled Duct Type Remark 1 Way CST Ceiling Console Floor Mounting FAC EIC FAC PAC RAC Jungfrau RAC Neo Forte EEV RAC Neo Forte RAC Domestic RAC Maldive RAC New Model Slim RAC Vivace gt mi lt S Capacity Buyer Name Product Type Capacity Year AM DVM 1 BTU H 100 E 2012 AJ PMA 2 CMH 10 F 2013 AC CAC USD ASD 3 HP 10 G 2014 AE EHS 4 WATT 100 H 2015 AN VTL J 2016 nis ia System AG CHR Power A 115V 60hz 10 B 220V 60Hz 10 C 208 230V 60Hz D 200 220V 50Hz E 220 240V 50Hz F 208 230V 60Hz G 380 415V 50Hz H 380V 60Hz A B C D E F G H J K J 460V 60Hz 3 K 220 240V 50 60Hz 10 M 127V 50Hz N 380 415V 50 60Hz 30 Series COOLING ONLY HEAT PUMP R410a Feature F FLAGSHIP P PREMIUM D DELUXE Basic S STANDARD X can be removed from the buyer card if there are not enough digits Samsung Electronics COOLING ONLY HEAT PUMP
6. olbooooo 00000 o obooocoo b b zt C5 o 2 gt 7 5 m o e ES 4 5 lt lt L Z ce H o gt A o o Li S nd a 2 5 acp I r 2 3 L gt di lt AE o b 2 Uo NJ o L D5 N d gt oo eO S l aa 5 PS cues b e boy Cog ERE NS CD 2 oooooobo OD 6 ber Hope 2 gangs im a Q oooo s 222 O oooo M 2 10 W Ww 1 lt WT OV j 2 EJ 109 g gt e 5 il Samsung Electronics 6 Wiring Diagram 6 1 Indoor Unit ROOM 10K I I DVM m 25 C at 10Kohm COM2 Wire Remote CN201 WHT EEPROM i CN81 RED 7 61514 3 211 Indoor and Outdoor CN311
7. Check the operation setting state Check temperature senso Check input power connection status Check the connection status between the motor and outdoor unit PCB Check indoor outdoor fuse Check the compressor connection status Check the resistance between difference phases of the compressor Self diagnostic error Operation Off Self diagnostic error Self diagnostic error Operation Off Operation Off Outdoor unit protection control error Operation Off Inverter Total current error PFC over current error Check the input power Check the coolant charging status Check the normal operation of outdoor fan Outdoor unit protection control error Operation Off Samsung Electronics Wired remote controller cont Error mode Contents Measure Product operation in error condition Outdoor unit Compressor Indoor unit Troubleshooting Error type OLP Overheat and Comp Stop Inverter IPM over current error Compressor V limit error Reconfirm the opening of the service valve Check for leaks from the connection part of the pipe and product or from the pipe joint Change the outdoor unit location and direction Refill the coolant after checking the leaking part Reinstall the outdoor unit set Check coolant charging Check the compressor connection status and normal operation Check the obstacles around the indoor and outdoor units Check whether the outdo
8. E m mm 1 1 ems az 1 p EM 1 m H e K aa eut a EL aa nno mas 77 E 5 Deo Samsung Electronics 5 1 CN101 GND 1 GND CN701 BLDC MOTOR 1 DC310V 83 GND 4 DCISV 85 FAN RPM 6 RPM FEEDBACK CN140 FUSE CHECK 1 FUSE CHECK SIGNAL 2 GND CN809 AUTOMATIC ELEVATING GRILLE 1 DCT2V 4 REMOCON SIGNAL 5 GND CN501 DISPLAY 1 DC12V 2 1 0 0 3 LED_1 2 5 LED_3 6 LED 4 7 LED 5 8 REMOCON OUTPUT SIGNAL 9 AUTO SWITCH 10 REMOCON INPUT SIGNAL 111 GND 12 DCSV 13 GND GJCN301 DOWNLOAD ICN83 EXT CTRL 1 GND 2 EXT CTRL SIGNAL 413 THERMISTOR 1 EVA IN THERMISTOR 2 GND 3 THERMISTOR 4 GND 5 DISCHARGE THERMISTOR 6 GND CN411 FLOAT SWITCH 1 F S SIGNAL 2 GND CN103 DRAIN PUMP 1 D P POWER DC12V 2 GND 1 CN81 ERROR COMP CHECK 1 DC12V 2 ERROR SIGNAL OUTPUT GND 3 DC12V 4 COMP OPER SIGNAL OUTPUT GND CN412 INDOORTHERMISTOR 1 INDOOR THERMISTOR 2 GND 201 M GND 3 DCG5V 4 EEPROM SELECT 45 EEPROM 50 6 EEPROM S 7 EEPROM_CLK 0 CN808 EEV 1 4 EEV SIGNAL OUTPUT 5 DC12V 6 DC12V CN311 2WIRED REMOCON 1 DC12V 2 COM2_PCTRL_MICOM 3 COM2_VCHECK_A 4 COM2_VCHECK_B 5 COM2_MICOM_AD 6 5
9. In case of a control problem it is possible to solve with S W update 4 32 Samsung Electronics 4 3 13 Error of Compressor Startup Rotation Error Code E461 E467 1 Testltem 1 Checkthe power supply Checkthe restart up after power is reset 2 Checkthe compressor and the state of the compressor wire assembling 3 Check the fault of the single compressor wire 2 Checkprocedure 30 seconds after power off power on Check power Check the restart up after power is reset 1 5 there any problem in input power Single phase 220Vac 3 phase 380Vac 2 Does the error occur again after power rest NO Yes Check the compressor and the state of the compressor wire assembling 1 Do the inter phase resistance values of the compressor coincide UO V UeW VeW 2 Are the wires on the compressor correctly connected Non connection wrong connection 3 15 there abnormal noise in the rotation of the compressor NO Yes s the resistance between the compressor body and the chassis Mega Samsung Electronics Troubleshooting End the service 1 Compressor replacement If the inter phase resistance values of the compressor are different Power is on Check the normal startup End the service 2 Wire reassembling If there is a fault in the connection of the wires of the compressor Power is on Check the normal startup End the service 3 C
10. 8 COM2_C 9 COM2_D 10 COM2_TXD 11 COM2_RXD 12 GND CN807 LOUVER5 1 DC12V 112 455 LOUVER SIGNAL OUTPUT CN804 VENTILATOR 1 DC12V 2 VENTILATOR SIGNAL OUTPUT GND CN806 LOUVER3 4 1 DC12V 12 45 LOUVER SIGNAL OUTPUT 6 DC12V 7410 LOUVER SIGNAL OUTPUT CN401 HUMAN SENSING SENSOR 1 DC12V 2 HUMAN SENSING SENSOR COMM TXD 3 HUMAN SENSING SENSOR COMM RXD 4 GND CN805 LOUVER1 2 DC12V 2 5 LOUVER SIGNAL OUTPUT o 21 CN801 SPI 1 GND 2 GND 3 SPI SIGNAL OUTPUT DC12V Q TB101 AC POWER 1 POWER L 2 POWER N TE04 COMMUNICATION 1 2 1 22 3 V1 DC12V 4 V2 GND 5 COM2 F3 6 COM2 F4 Samsung Electronics 5 1 2 Samsung Electronics PCB Diagram and Parts List gt Shy 3 Ke gt 2 V C 1 DC12V 2 6 LED Control Signal 7 Not used 8 Remocon Signal Out 9 Not used 10 Remocon Signal In 12 Vcc 13 Not used 2 lt 4 270 TAN ONS 5 Oe S PCB Diagram and Parts List 5 2 Outdoor Unit 5 2 1 Main PCB ACO18JXADCH r 1 w 4 s E i o 422 JI apa jS New o o ofo o 00000 091218 85655 04 iu 2 o o o b o o 5 a pA eA a Prcago P 6 gt _ _
11. End the service 1 Check the wire disconnection of the inverter PBA of the outdoor unit 2 Remove the obstacles of the suction pipes Has the outdoor unit been correctly installed of the outdoor unit and secure the space 090 100 125 140 RC100DHXB Checking wire disconnection Checking wire disconnection Yes RCO072DHXB Checking wire disconnection Check the indoor unit installation No environment Check everything is normal at re start End the service 1 Remove the obstacles of the inlet and secure the space 2 Remove the obstacles of the outlet and Yes secure the space Has the indoor unit been correctly installed Have the pipes and wires of indoor and outdoor units been correctly installed Yes 4 36 Samsung Electronics Wire Poor installation IPM Over current Error Error Code E464 Continued Continued Has the service valve been completely opened Are the connections of the compressor No correctly connected with the compressor Yes Check the compressor 1 Do the inter phase resistance values of the compressor coincide U e V U e W V gt W 2 Are the wires on the compressor correctly connected Non connection wrong connection 3 Is there abnormal noise in the rotation of the compressor No Yes
12. SYSTEMAIR CONDITIONER 4 WAY CASSETTE SERIES INDOOR UNIT OUTDOOR UNIT Model ACO18JNADCH AA AC018JXADCH AA ACO24JNADCH AA AC024JXADCH AA ACO30JN4DCH AA X ACO30JXADCH AA ACO36 NADCH AA 036 ACO42 NADCH AA 042 ACO48 NADCH AA 048 SERVIC Manual a AIR CONDITIONER CONTENTS 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet Contents T LT REN gt 1 1 Precautions for the asses p 1 1 1 2 Precautions related to static electricity and PL a 1 1 1 3 Precautions related to product safety sssssscsssssssscssssssessssssssssessssssscsssssssssssssssscsssssssssesssssssessssssessssssseess 1 2 1 4 Other precautions eire eivai hide rU HRS QU 1 2 2 Product Specifications 2 1 2 1 The Feature ol PEOOUGE Q A a s sS ORI IER UMOR 2 1 ELT nee 2 1 2 2 Producti Specilicat fS 2 4 2 3 Specifications of optional items u nibh 2 6
13. PCS SONS 2 6 2 3 2 Filter specifications UI aieia 2 10 3 Disassem bly and Reassem comin neni n 3 1 E gro fe oig URN 3 2 3 2 Outdoor Unit LI a EORNM 3 8 Troubleshooting I 4 1 Setting an indoor unit address and installation option 4 1 4 1 1 The procedure of setting option I 4 1 4 1 2 The procedure of setting option u 4 2 4 1 3 Order for Setting Options Wired Remote Controller 4 5 4 1 4 Setting an indoor unit installation option Suitable for the condition of each installation location 4 6 4 1 5 Changing a particular option 4 8 4 1 6 Option code for each modlel _____________ 4 9 4 2 Items to check before diagnostics l 4 10 4 2 1 Test run mode and View Mode iniri kan des s Apa EL EDU 4 10 4 2 2 Eco Mode Power Saving Mode l l a 4 12 4 2 3 Four directions cassette type eee tees 4 13 4 2 4 Wired remote c
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15. Does the compressor work correctly After replacing the inverter PBA of the outdoor unit check normal startup End the service Samsung Electronics RCO072DHXB Checking wire disconnection 090 100 125 140 RC100DHXB Checking wire disconnection Check the indoor unit installation environment Check everything is normal at re start End the service 1 Remove the obstacles of the inlet and secure the space 2 Remove the obstacles of the outlet and secure the space Replace the compressor 4 35 Troubleshooting 4 3 15 IPM Over current Error Error Code E464 1 Testltem 1 Checkthe power supply Check the re startup after the power is reset 2 Checkthe outdoor unit installation environment Check the disconnection of the wires regarding the inverter PBA of the outdoor unit and check the installation environment gt At the site where several units were installed at the same time check whether communication connections and pipes have been wrongly connected 3 4 5 6 Check the indoor unit installation environment Checkthe openino of the service valve Checkthe compressor and the state of the compressor wire assembling 000 00 00 A Checkfor fault of the single compressor wire 2 Checkprocedure 30 seconds after power off power on Check the outdoor unit installation environment Check everything is normal at re start
16. QUEE 7 1 N 7 1 79192 7 2 E EAAS E E A A 7 3 7 2 Refrigerating Cycle Diagram LI _ ____ 7 4 Precautions Ts Precautions 1 1 Precautions for the Service Use the standard parts when replacing the electric parts Confirm the model name rated voltage rated current of the electric parts When repairing the equipment connection of the harness parts must be firm and solid A loose connection may cause noise or other malfunction When assembling and disassembling the equipment while it is laid down lay it on soft cloth Otherwise it may scratch the back of the exterior of the product Remove dust or dirt completely from the housing block wiring block and service parts during repair This helps prevent the danger of fire caused by tracking or short circuit Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches Check the status of the components assembly after repair service The status must be the same as before the repair service 1 2 Precautions related to static electricity and PL The PCB power supply block is susceptible to static electricity Therefore care must be taken during repair or measuring while the power is on Wear insulation gloves for PCB repair or measuring Check whether the installation location is at least two meters away fr
17. T 4 connected to breaker Check the power to the indoor unit Check the connection of the power line of the 1 Is the line voltage 220 Vac eru E g 1 Check wires are correctly connected by Yes 1 L lt gt 2 N referring to the electrical circuit Connect the power line the pow 1 First turn off the power of the terminal box 1 Isthere a fault in the connection 1 Connect the power supply of the power supply to Main PBA 2 Turn on the terminal box and check whether and EMI PBA normal power is supplied the outdoor unit Continued 4 24 Samsung Electronics Troubleshooting When the outdoor unit power is not ON Initial Diagnosis 3 phase products Continued Continued Check the power parts Switch off power to the termina box before inspection 1 Is there a fault with a fuse Uu After replacing the main PBA and resetting the When the bridge diode is measured with output voltage does the voltage exceed 290 Vdc 3 Is the power supply voltage 12V 4 15 there a fault with a fuse of EMI PBA Short Normal Open Fault Outdoor main PBA checking part Outdoor EMI PBA checking part Fan Motor Connector After separating and resetting C tth the power check everything is normal Miete poter Separate the connector after turning off the Switch off power to the terminal box
18. Cooling only N A HEAT RECOVERY R22 R134A Reference Sheet 7 1 2 Outdoor Unit Model Code 8 Capacity Product Type Capacity Year AM DVM 1 BTU H 100 2012 2 CMH 10 F 2013 AC CAC USD ASD 3 HP 10 H 2014 AE EHS 4 WATT 100 J 2015 AN VTL K 2016 AK PAK L 2017 Packaged System AG CHR Feature Feature General Set NASA Indoor unit NASA Outdoor unit NASA Inv Side Tropical Temp General Set Non NASA Indoor unit Non NASA Outdoor unit Non NASA MCD Dummy mock up model X can be removed from the buyer card if there are not enough digits Inv Top Tropical Temp Non Inv Side General Temp CAC Non Inv Side Low Temp Non Inv4 Side Tropical Temp 7 Non Inv Top Tropical Temp 4Way 4 Duct Ceiling C Feature F FLAGSHIP P PREMIUM D DELUXE lt Basic S STANDARD L FLAGSHIP TROPICAL R PREMIUM TROPICAL T DELUXE TROPICA 3 Basic Model N STANDARD TROPICAL A 115V 60hz 10 B 220V 60Hz 10 C 208 230V 60Hz D 200 220V 50Hz E 220 240V 50Hz F 208 230V 60Hz 3 G 380 415V 50Hz 3 H 380V 60Hz 30 J 460V 60Hz 3 K 220 240V 50 60Hz 10 M 127V 50Hz N 380 415V 5
19. Other companies Comparison of weights with other companies 11kg Corner separable panel for simple leveling The panel structure with four corners that can be separated enables convenient installation and service as only the required corner can be separated to adjust leveling when necessary Maintain pleasant temperature with fine temperature control with a resolution of 0 1 C The equipment operates with minimum power to maintain the optimum temperature and it always maintains pleasant room temperature small temperature steps of 0 1 C that you j uu uw uu w not be able to sense CED Smart inverter air conditioner General air conditioner Samsung Electronics 2 1 Product Specifications Rich and pleasant cooling heating without gaps Superior heating performance even at 20 The equipment achieves a stable heating performance with the superior reliability of low temperature heating so that the indoor unit blows air of 40 or higher in a cold winter when the outside temperature is below 20 Pleasant room with a check valve for preventing backflow A check valve is installed to prevent condensed water drained from the indoor unit flowing back into the indoor unit for various reasons such as improper drain pipe installation or power cut and indoor leak or bad smell by backflow is fundamentally blocked Function to control optimum room temperature that reduces t
20. WHT COM1 1211109 817 615 4 31211 SUB PBA DOWNLOAD CN701 CN140 CN301 BLK CN413 CN411 CN103 WHT WHT WHT BLK YEL DISPLAY EVA INC10K DRAIN PUMP W R S LED LAMP DISPLAY LED DISPLAY FOR ERROR DETECTION d OFF N CUIVRE X 9 X X ERROR OF EVA IN 0UT SENSOR IN THE INDOOR UNIT OPEN SHORT LX X Qi X ERROR OF FAN MOTOR IN THE INDOOR UNIT O 9 X X ERROR OF OUTDOOR SENSOR OUTDOOR TEMP COND DISCHARGE LX Q Q X NO COMMUNICATION FOR 2 MINUTES BETWEEN INDOOR AND OUTDOOR UNIT X 9 0 code of outdoor unis or solution display _ Check error code at outdoor unit s or solution display LX X Q 9 DETECTION OF THE FLOAT SWITCH 9 9 09 EEPROM ERROR EEPROM OPTION ERROR 9 x NO MATCH BETWEEN OUTDOOR AND INDOOR Onl y DVM Model Q x Q HIGH PRESSURE BLOCKAGE ERROR Only CAC Model This Document can not be used without Samsung s authorization Samsung Electronics 6 1 AC018JXADCH 6 2 Outdoor unit AC CORE INPUT HR EARTH ue gt GRN YEL SKY BLU BRN VL EARTH WHT BLU _ CN003 01 CN002 RD 4 pe aren evan RED INDOOR UNIT 200 154 COMM 250V 31 WHT EVA QUT TH VA003 VA002 Inhu ta QUE mm SL
21. at the stop of the compressor E404 Check whether the fan and the motor operate normally Checkthe operation of EEV Checkthe temperature sensor of the indoor unit heat exchanger Checkthe indoor unit inlet blocking 7 Outdoor unit compressor discharging temperature protection control E416 Check for lack of refrigerant Check the blocking of the solenoid valve Check the malfunction of the exhaust temperature sensor Check EEV 8 Error of impossibility to operate heating at outdoor temperature exceeding 30 C E440 Error of impossibility to operate cooling at outdoor temperature of 5 C or under E441 It is not the error code in the product and it is a specification to protect the product by limiting the temperature scope of use Use by referring to the temperature scope of use on the product manual etc 9 OLP overheating and compressor stop E463 Check the opening of the sub valve Check the amount of the cooling water Check OLP sensor 10 Current sensor error E468 Check EEPROM data Check PCB operation 11 IPM IGBT Module or PFCM temperature sensor error E474 IPM overheat error for outdoor unit inverter compressor E500 Check whether IPM is correctly assembled on the heatproof plate Check whether the inlet is blocked If there is a defect replace IPM 4 44 Samsung Electronics 5 PCB Diagram and Parts List 5 1 Indoor Unit 5 1 1 MAIN PCB Q6 9 6 Q
22. lt Cooling lt Heating A Leak check points CONDENSER High temperature and high pressure gas state coolant discharged from the compressor is converted to a liquid state as it is cooled down by the heat emission in the outdoor condenser unit and sent to the evaporator COMPRESSOR Low temperature and low pressure coolant is compressed and sent to the cycling system EVAPORATOR Liquid coolant sucked in through the capillary tubes cools down the room by absorbing the surrounding heat as it evaporates converting from liquid to gas Absorbing heat required for evaporation SERVICE VALVE You can open the valve by turning the need valve counterclockwise using hex wrench and it is used for vacuum gas purging coolant injection coolant purging and indoor outdoor unit connection ACCUMULATOR Accumulator prevents the flow of liquid state coolant into the compressor Liquid state coolant flowing into the compressor will overload the compressor 7 4 Samsung Electronics ELECTRONICS GSPN GLOBAL SERVICE PARTNER NETWORK Area Web Site Europe CIS Mideast amp Africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North amp Latin America gspn3 samsungcsportal com China china samsungportal com This Service Manual is a property of Samsung Electronics Co Ltd O Samsung Electronics Co Ltd January 2015 Any unauthorized use of Manual can be punished under ap
23. 2 ele N F1 F2 2 CN003 DRED RED BLK 69 69160 69 lt QUIET YEL GRN S W to INDOOR from AC POWER to INDOOR an C POWER SOURCE 1Phase COMMUNICATION 866 04597A 00 22 Samsung Electronics This Document can not be used without Samsungs authorization 7 Reference Sheet 7 1 Index for Model Name 7 1 1 Indoor Unit Model Code ni nja 18 H 18 LI
24. 7 PCB Diagram and Parts List 5 2 4 INVERTER PCB 2 AC030JXADCH AC036JXADCH AC042JXADCH AC048JXADCH Reactor A2 WHT Reactor B2 WHT Reactor A2 BLK Reactor B2 BLK ui 14 au tat i b 5 h an 1 RXD 2 TXD 3 GND 4 DC 5V 5 DC 12V 6 INV SMPS signal 1 RXD_ATARO 2 TXD_ATARO 3 8 N C 4 7 DATA signal 9 GND 10 DC 5V 5 CN21 DAC ENCODER For S W engineer debugging 5 8 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 COMP U phase RED 2 COMP V phase BLU 3 COMP U phase YEL Samsung Electronics PCB Diagram and Parts List AC048JXADCH 5 9 5 2 5 EMI PCB AC030JXADCH AC036JXADCH AC042JXADCH 024 gt x M o ce A o n LLI so RE N pase 00000 b N ooooo b lt cN 00000 b 5 ES b te lt E n UM oloooooo 00000 b
25. 72 two outdoor fans one outdoor fan 090 100 125 140 145 Check the power supply of the inverter PBA of the outdoor unit 1 Check by referring to When the outdoor unit power is not ON Initial Diagnosis Check everything is normal after replacing the PBA at the fault in the inverter PBA End the service 1 3 Link Voltage between DC link and GND 280Vdc 360Vdc 4 3 DC Link voltage between DC15V and GND 14Vdc 16Vdc 5 3 FAN command voltage between fan control and GND 2Vdc 5Vdc Measuring Part Diagnosing Part 5 YEL 3 BLK resistance between fan control and GND 4 WHT 3 BLK resistance between DC15V and GND 5 YEL 3 BLK resistance between fan control and GND 6 BLU 3 BLK resistance between feedback and GND Value of good product Open infinite resistance Approx 1 0 Approx 230kO 280kO some MO or more or open infinite resistance value Motor Connector At least 30 seconds after power is OFF attach detach the fan motor connector Threatened to cause secondary damage to the motor and the PBA Check the single inverter PBA or fan motor and only if there is a fault replace Do not replace the main PBA of the outdoor unit relating to the fault in the fan motor X If the error is indicated on 7 segment of the main PBA of the outdoor unit the main PBA of the outdoor unit has no fault
26. EVA B OUT TH 10 i IN TH Uu VA A FA B NH 6 4125 4125 27001 __ __ __ OPTION wasa Kass CN12 BLU 5 x BRN 7 SKY BLU E OPTION i M BOARD CN851 WHT CNOSO CWHT nri qs OS T uae 8I O 2 EE Es CN201 BLK BHL Sz TE Sha lt L DISCHARGE TH CN551 RED CANO REACTOR 516 CN251 BLU TT 5 OLP TH 11m Nub pa o wat CN252 WHT BLU 2 615 H CORE CN051 WHT R451 N MIT 482 N CN901 WHT n RED ubl Eu BLU Nan LS CE102 CN701 WHT n 00 CN451 WHT pon CE103 RE P C400 EPI e OPTION ggi CN952 WHT MAIN BOARD This Document can not be used without Samsung s authorization Samsung Electronics AC024JXADCH AC030JXADCH AC036JXADCH AC042JXADCH AC048JXADCH
27. Factory Charging g 2100 Additional Refrigerant for every 1m g 10 10 22 Basic Piping Length m 7 5 7 5 7 5 Max Piping Length m 30 50 50 Max Level Difference m 20 30 30 Option Code 01406F 1950D8 27343B 370005 020000 100000 200000 300000 034745 103D49 200000 300002 01406F 1950D8 274750 370005 020000 100000 200000 300000 034042 10414C 200000 300002 01406 1950 8 275 64 370045 020000 100000 200000 300000 033E39 103B45 200000 300002 Samsung Electronics Development Model Product Specifications AC036JN4DCH AC036JXADCH AC042JN4DCH AC042JXADCH AC048JN4DCH AC048JXADCH INDOOR UNIT OUTDOOR UNIT REMOTE CONTROLLER et Cooling Btu h 36000 Performance 42000 48000 Heating Btu h 40000 47000 53000 Power Cooling W 2980 4040 4950 Consumption Heating W 3480 4350 5050 Cooling Btu hW 12 11 EER COP 10 41 9 71 Heating Btu hW 11 51 10 81 10 51 Voltage Frequency 208 230V 60Hz 208 230V 60Hz 208 230V 60Hz Operating Cooling A 13 8 18 7 229 Current Heating A 16 1 20 1 234 Indoor Unit dBA C H 50 50 Noise 51 51 51 51 Outdoor Unit dBA C H Net Indoor Unit mm 60 60 840 840 288 62 62 840 840 288 62 62 840 840 288 Dimension WxDxH Outdoor Unit mm 898 898 357 89
28. SiO OOOO OOO GC OO OOo a MEL hg V vom gt UU 200 2 j 4 lt 0717 SEC2 g N 0503 Ei H H a ge 7 E R5 4 r C512 5 8512 Eu ETE 4309 63 diia apple PAN 1 DC12V 2 GND D CN951 SIGNAL TO MAIN PCB 1 28 SIGNAL TO MAIN PCB Samsung Electronics PCB Diagram and Parts List 5 2 3 MAIN PCB AC024JXADCH AC030JXADCH AC036JXADCH AC042JXADCH AC048JXADCH ics BASEHEMER 8 sos DE DAC s CN cowwNDOOR Wwe ow RED 6 ENORCOMPCHECK SMWOSDO4RED ces 7 74 1006 cw Samsung Electronics 5
29. clean the blade but our product is designed so that the blade safely and easily detaches and re attaches enabling you to easily clean it Rich and pleasant cooling heating without gaps cont e Self diagnostic function of indoor unit to minimize inconvenience in case of malfunction If the indoor unit malfunctions due to equipment failure during operation the type of problem can be checked from the panel display and the service time and inconvenience can be minimized by submitting a service request based on the information from the self diagnostics of indoor unit Minimum installation cost by built in high head drain pump The high head pump is built into the indoor unit and the condensed water generated during the cooling operation will be drained to the outside The pumping height can be up to 750mm so that drain pip installation can be easier and save time and cost of installation Individual Blade Control Capable of realizing optimal air current in accordance to customer preference and diverse structures located in different directions through individual control of each of the 4 blades Individual control can be realized through both cable and wireless remote control 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Samsung Electronics 253 Pr
30. operation mode SEG9 SEG10 SEG11 SEG11 Indoor unit at heating stop Explanation ded MM Master Slave diagram Remote dada RESERVED RESERVED Display Indication Details Indication Details Indication Details Indication Details 0 Disuse 0 Default 0 slave Indication 1 Use Noise 1 master and Details Use reduction 2 3minute operation delay mode Option SEG14 SEG15 SEG16 SEG17 SEG18 Explanation Use of external control Setting the output of external control S Plasma ion Buzzer control Number of hours using filter Remote Controller Display Indication and Details Explanation Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details 0 Disuse 0 theme 0 Disuse 0 M 2 1000 Hour ON OFF Operation Non use 1 1 Use 1 2000 Hour on of buzzer Control Window ON OFF Individual control of a remote controller Heating setting compensation Remote Controller Display Indication and Details Samsung Electronics Indication Details Indication Details Details 1 Indoor 1 2 Indoor 2 Indication 0 Disuse 3 Indoor 3 1 4 Indoor4 2 RESERVED RESERVED RESERVED 4 7 Troubleshooting 4 1 5 Changing a parti
31. option Dry Dry Press Low Fan button V to enter SEG6 value Press High Fan button A to enter SEG8 value Each time you press the button 0 gt F will be selected in rotation SEGS 6 Setting Fan mode m Press Mode button to be changed to FAN mode in the ON status 7 Setting SEG9 SEG10 option Press Low Fan button V to enter SEG9 value Press High Fan button A to enter SEG10 value Each time you press the button 0 1 F will be selected in rotation SEGO SEG10 8 Setting Heat mode Press Mode button to be changed to HEAT mode in the ON status 9 Setting SEG11 SEG12 option Press Low Fan button V to enter SEG11 value on on Press High Fan button A to enter 52612 value Each time you press the button 1 selected in rotation SEG11 CEGi 10 Setting Auto mode Press Mode button to be changed to AUTO mode in the OFF status 11 Setting SEG14 SEG15 option Auto Press Low Fan button V to enter SEG14 value Press High Fan button A to enter 52615 value Each time you press the button 0 1 E F will be selected in rotation SEG14 SEG15 4 2 Samsung Electronics Troubleshooting The procedure of setting option cont Option setting Status 12 Setting Cool mode Press Mode button to be change to Cool mode in the OFF st
32. the right 25 10 00 20 12 10 Indoor tem perature sensor 15 1470 failure replace 10 18 00 Restart the system after replacing the PCB 5 22 00 0 28 30 5 33 90 10 42 30 Samsung Electronics 4 17 Troubleshooting 4 3 2 Indoor heat exchanger temperature sensor open short Indoor unit display Operation j Defrost X Timer X Filter Symptom Short or open circuit of indoor heat exchanger temperature sensor Failure Short or open circuit in the corresponding sensor Is the indoor heat exchanger temperature sensor connector disconnected from the PCB Yes Restart the system after connecting the connector to PCB Remove the indoor heat exchanger temperature sensor connector from the PCB and measure the resistance between two terminals LAMP ON HITESTER i 3f Temperature sensor resistance value gt Current Resistance temperature C 40 5 800 In this case is the resistance Yes 2 value out of range in the temperature table 30 8 300 A 20 12 10 Failure of the indoor heat exchanger temperature sensor 15 14 70 replace 10 18 00 Restart the system after replacing the PCB 5 22 00 0 28 30 5 33 90 10 42 30 Samsung Electronics Troubleshooting 4 3 3 Indoor FAN error Indoor unit display X Operation X Defrost p Timer X Filter Symptom Indoor unit fan does not run Runs at excessive high speed and s
33. 0 60Hz 3 Z Tm m O nio gt Series COOLING ONLY HEAT PUMP HEAT RECOVERY COOLING ONLY C H R D E A B N HEAT PUMP Cooling only R134A Heat Pump N A Samsung Electronics Reference Sheet 7 1 3 Panel Model Code ngajogo 2 IE AE Product design classification Panel version Pane 1 2 Korean market use Export A B foreign market use Product Type C CST Communication type Product classification Automatic NASA 1 2 1N Standard 1 way boarding slide 485 1B Large size 1 way SRM N NASA oN 2WAY H PREMIUM CST 4N 4WAY 4S MINI 4 WAY z 4R Round SOnguage Korean Chinese K E M 8Languages E English Only display the Global 4 way with Korean English K separator Pattern Global Korean 4 Way market use Panel Export foreign A E market use x Model name for the column bundle packaging is S Samsung Electronics 7 3 Reference Sheet 7 2 Refrigerating Cycle Diagram Indoor Unit Outdoor Unit 1 1 Electronic expansion valve 4 3 valve Liquid pipe Heat exchanger Evaporator Heat exchanger Evaporator Fan Gas pipe 3 way valve Compressor Oil separator
34. 7 Gas Leakage Error Error Code E554 1 Testltem 1 Check the power supply Check the re startup after the power is reset Is there a fault in input power Does the error occur again at operation after power is reset 2 Checkthe compressor and the state of the compressor wire assembling 3 Checkthe outdoor unit installation environment Check for disconnection of the wires regarding the inverter PBA of the outdoor unit and check the installation environment At the site where several units were installed at the same time check whether communication connections and pipes have been wrongly connected 2 Checkprocedure 30 seconds after power off power on Did the error occur End the service 1 Compressor replacement If the interphase resistance values of the compressor are different Power is on Check the normal startup End the service No 2 Wire reassembling If there is any fault in the connection of the wires of the compressor Power is on Check the normal Check the compressor and the state of the compressor wire assembling 1 Do the inter phase resistance values of the compressor coincide 0 0 e W V e W 2 Are the wires on the compressor correctly connected Non connection wrong connection 2 0 3 Is there abnormal noise in the rotation of the compressor startup End the service 3 Compressor replacement Serious abnormal noise Metallic scra
35. 8 898 357 898 898 357 Shipping Indoor Unit mm 940 330 1210 940 330 1210 940 330 1210 Dimension WxDxH Outdoor Unit mm 995 426 1388 995 426 1388 99542671388 Indoor Unit kg 19 Net Weight 19 19 Outdoor Unit kg 88 Weight 88 88 Shipping Indoor Unit kg 24 24 24 Weight Outdoor Unit kg 98 98 98 Indoor Fan Motor DB31 00577A Harness DB31 00577A DB31 00577A Compressor Outdoor Fan Motor UG5T450FUEJX Specifications DB31 00579A UG5T450FUEJX DB31 00579A UG5T450FUEJX DB31 00579A High Pressure 4 1 Piping 4 1 4 1 Low Pressure 1 4 1 4 1 4 PANEL PCANUSKFN Refrigerant Type R410A Factory Charging g 2800 Additional Refrigerant for every 1m g 33 Basic Piping Length m Max Piping Length m 75 7 5 75 75 Max Level Difference m 30 30 30 01406F 195439 276470 370045 020000 100000 200000 300000 03453F 102B35 200000 300002 Option Code Samsung Electronics 01406 19544 27708 370045 020000 100000 200000 300000 034343 103940 200000 300002 01406F 19545B 278CA0 370045 020000 100000 200000 300000 034748 104444 200000 300002 Product Specifications 2 3 Specifications of optional items 2 3 1 Accessories Description Code No Remark Ass y drain hose Cable tie DB94 02719B DB65 00191A
36. CO72DHXB K Replace the temperature sensor Power gt After confirming the state is normal end the service Discharge sensor 2000 at 25 Outdoor unit temperature sensor COND sensor 10 at 25 C OLP sensor 200 at 25 RCO72DHXB Example COND sensor outdoor unit temperature sensor measuring resistance value by temperature E231 E221 Does the same error occur again after power is on e g Room temperature 26 C Resistance 10 28 KO Li SELECT 5 eee iv Yes 7j 70 4 20 10 60 5 10 20 50 6 0 30 40 7 10 40 30 8 Example sensor discharge temperature sensor measuring resistance value by temperature 320 2251 temperate peque Pesan C 80 40 30 180 70 50 20 220 60 60 10 320 50 90 0 550 40 110 After confirming the state is normal end the service Replace the outdoor unit PBA Power is on After confirming the state is normal end the service Samsung Electronics e g Room temperature 21 C Resistance 205 4 KO YUNKA hA 4 31 Troubleshooting 4 3 12 Outdoor Unit Fan Error Error Code E458 E475 1 Testltem 1 Check the connection of fan connectors CN90 CN91 In case of RCO72DHXB CN901 2 3 Checkthe power supply of the inverter PBA of the outdoor unit Check the
37. Check the resistance between difference phases of the compressor Check the input power connection status Check the connection status of the motor and the outdoor unit PCB Check the indoor outdoor unit fuse Operation Off Operation Off Operation Off Outdoor unit protection control error Outdoor unit protection control error Self diagnostic error IPM Overheat Error for Outdoor Unit Inverter Comp Change the location of the outdoor unit if the temperature is abnormally high when the heatproof plate is checked Reconnect the screws Replace the outdoor unit fan Replace the PBA of the outdoor unit Operation Off Outdoor unit protection control error Gas leak error Samsung Electronics Check the coolant charging status Check the indoor EVA sensor Check if the outdoor unit service value is open Check that the indoor outdoor installation pipe wiring are correct Operation Off Self diagnostic error 4 15 Troubleshooting Wired remote controller cont Product operation in error condition Error mode Contents Measure Outdoor unit Error type Compressor Indoor unit Outdoor unit Capacities not matched Check the option code of the indoor unit Operation Off protection control error Communication error between Check the connection wire between the indoor unit and Wired remote the indoor unit and wired Normal operation the wired remote controller con
38. Is the resistance between the compressor No body and the chassis Mega Q Yes Troubleshooting Open the valve Check the state of the connection of the compressor 1 Compressor replacement If the interphase resistance values of the compressor are different gt Power is on Check the normal startup End the service 2 Wire reassembling If there is a fault in the connection of the wires of the compressor Power is Check the normal startup End the service 3 Compressor replacement Serious abnormal noise Metallic scraping or grinding noise serious vibration Replace the compressor Are the position and measuring value of the temperature sensor normal Samsung Electronics After power is off correct or replace the sensor position 4 37 Troubleshooting IPM Over current Error Error Code E464 Continued Continued Check the compressor wires 1 Arethe wires of the compressor correctly assembled in colors U RED V BLU and W YEL Check the disconnections of PBA and COMP ded 1 Replace the compressor wire gt Power is on 2 Is the terminal in the compressor wire housing gt Endth firmly assembled eck normal startup nd the service 3 5 there a fault of part of the compressor 2 Replace the compressor wire gt Power is on wires in deviation or secession Check normal startup End the service 3 Replace the compr
39. SEG10 SEG11 SEG12 Drain pump RESERVED RESERVED USE Master Slave heating stop SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 External control Number of hours External control S Plasma ion Buzzer output usino filter SEG20 SEG21 SEG22 SEG23 SEG24 Individual control of Heating setting a remote controller compensation RESERVED RESERVED RESERVED gt 1WAY 2WAY AWAY MODEL Drain pump SEG8 will be set to USE 3minute delay even if the drain pump is set to 0 gt 1 WAY 2WAY AWAY DUCT MODEL Number of hours using filter SEG18 will be set to 1000hour even if the SEG18 is set to exept for 2 or 6 p If you input a number other than 0 4 of the individual control of the indoor unit SEG20 the indoor is set as indoor 1 gt AWAY MODEL Even when the value of Heating setting compensation SEG21 is set to 0 it wil be recognized as 5 4 6 Samsung Electronics Option 02XXXX 1XXXXX 2XXXXX 3XXXXX Troubleshooting Option SEG3 SEG4 SEG5 SEG6 Explanation Sese ean Use of central control FAN RPM temperature sensor Remote Controller Display Indication Details Details RESERVED Indication Details Indication Details 0 nonuse 0 Disuse 0 High ceiling mode Indication nm and Detail 1 Use 1 High purity kit Noise reduction
40. Samsung Electronics 1 Disconnect the Connector Wire that is connected to the indoor unit s PBA from the PBA 2 Unscrew the 2 fixed screws on both sides of the Control Box and disassemble the Control Box from the indoor unit Use Screw Driver 3 3 Disassembly and Reassembly 3 Bell Mouth 1 Unscrew the screw fixed on the Bell Mouth Use Screw Driver 2 Push the Bell Mouth in the direction opposite to where it s installed on the Control Box to remove it 4 Drain Pan 1 Unscrew the screws on the 4 corners of the indoor unit Use Screw Driver 2 Remove the Drain Pan from the indoor unit 3 4 Samsung Electronics Disassembly Reassembly 5 Drain Pump 1 Remove the 2 fixed screws and amp disconnect the white drainage hose from Hose the Drain Pump Use Screw Driver 2 Remove the 2 screws and take the Drain Hose out from the indoor unit to disassemble the transparent Drain Hose fixed on the side of the indoor unit Use Screw Driver 1 Use your hand to remove the temperature sensor attached to the Evap Pipe along with the fixing clip 6 Evap Temperature Sensor Samsung Electronics 3 5 Disassembly Reassembly 7 1 Turn the hexangular nut attached to the top of the Fan counterclockwise to remove it Take the Fan out of the Motor 2 Turn the three hexangular nuts on the Motor counterclockwise to remove the nu
41. Seal drain ass y Seal drain ass y DB62 05810A DB62 05810F Seal drain ass y Cap Drain DB62 05810G DB63 10355C Drain Plug Rubber Leg DB67 00806A DB73 20134A Essential Offer Indoor Unit Essential Offer Outdoor Unit BOLT FLANGE ASSY INSTALLATION MANUAL 6011 003975 DB68 03837A 2 6 CARD WARRNATY DB68 01675A Essential Offer Panel Samsung Electronics Accessories cont Wireless remote controller MR EH00 MR ECOO Descriptions Wireless remote controller Code No DB93 14643F MR EHOO0 DB93 14643K MR ECOO0 Product Specifications Batteries for remote controller specification AAA type 4301 000121 Remote controller holder DB61 06087A Optional M4x16 screw User s manual Samsung Electronics 6002 000581 DB68 04667A 2 7 Product Specifications Accessories cont Wired remote controller MWR WE10N Code No DB97 22234A Descriptions Wired remote controller Code No DB93 11251F Cable tie DB65 10088B Cable clamp M4x16 Screw DB65 10074E 6002 000474 Optional User s manual DB68 03732A 2 8 Installation guide DB68 03716A Samsung Electronics Product Specifications Accessories cont Central controller MCM A202DN Code No DB97 22237A Desc
42. TVS Diode Replace the main PBA of the outdoor unit qM NL e AM Fault checking ba VT Tvs Diode 7 CHR dii Tw TVS Diode 8 2 Continued 8 090 100 125 140 145 RC072DHXB 4 28 Samsung Electronics Indoor outdoor communication error 1 min Error Code E202 Continued Continued Check the communication circuit of the main PBA of the outdoor unit 1 Is there a problem in communication 2 5 there a fault in TVS Diode Troubleshooting Communication IC Measuring Part Circuit Diagram Measuring Part Example of Measuring Communication IC Example of Measuring TVS Diode Location Measuring 5 6 Communication 7 Point Communication B 8 Vcc Steady state Measuring Value Communication IC Measuring Port Remark 1 RED 6 5 0 9kO 1 2kO M m 47 5 09kO 12KO easuring after separating the communication connection 8 5 4 Ndc 5 3Vdc TVS Diode Measuring Steady state Measuring Value Both ends of diode Samsung Electronics 4 29 Troubleshooting 4 3 10 Communication error between outdoor unit lt gt MAIN 1 min Error Code E203 1 1 Is the power of outdoor unit inverter PBA on 2 Checkthe power connection and fuse 3 Is there a problem in the communication connections between the outdoor unit inverter CN31 and mai
43. atus 13 Setting SEG16 SEG17 option Press Low Fan button V to enter SEG16 value Press High Fan button A to enter SEG17 value Each time you press the button 0 gt E gt F will be selected in rotation 14 Setting Dry mode Press Mode button to be change to Dry mode in the OFF status 15 Setting SEG18 SEG20 option Press Low Fan button V to enter 52618 value Press High Fan button A to enter SEG20 value Each time you press the button 0 gt E gt F will be selected in rotation 16 Setting Fan mode Press Mode button to be change to Fan mode in the OFF status 17 Setting SEG21 SEG22 option Press Low Fan button V to enter 52621 value Press High Fan button A to enter SEG22 value Each time you press the button 0 1 gt F will be selected in rotation 18 Setting Heat mode Press Mode button to be change to HEAT mode in the OFF status 19 Setting SEG23 SEG24 mode Press Low Fan button V to enter SEG23 value Press High Fan button A to enter SEG24 value Each time you press the button 0 gt gt E gt F will be selected in rotation Samsung Electronics 4 3 Troubleshooting Step 3 Check the option you have set After setting option press button to check whether the option code you input is correct or not Step 4 Input option Press the operation button with the direction of remote control for set For the correct o
44. be stopped before removing connecting pipes for pump down work Operating the compressor while the service valve is open and coolant pipe is not properly connected may cause explosion or injury due to abnormal high pressure created inside the coolant cycle as the air can be absorbed through the pipe Pump Down work procedure When uninstalling the product Turn on the air conditioner select cooling operation and run the compressor for more than three minutes Release the high pressure and low pressure valve caps Close the high pressure valve completely using an L wrench After about two minutes close the low pressure valve completely Stop running the air conditioner Separate the connecting pipe Samsung Electronics Product Specifications 2 Product Specifications 2 1 The Feature of Product 2 1 1 Features What is four direction cassette type air conditioner Stylish design and pleasant cooling heating will provide a pleasant ambience Four direction cassette with powerful three dimensional cooling and heating from four directions offers gapless pleasant environment and has the right design for high class interior and will provide an extra stylish look Convenient and efficient installation Easy installation of ultra lightweight indoor unit A filter that obviates the need for replacement and or maintenance up to 1 000 2 000 hours and retains its initial cleanness SAMSUNG
45. cular option You can change each digit of set option SEG SEG2 Explanation Thetens digitofan The unit digit of an option SEG you will option SEG you will change The option mode you want to change Remote Controller Display Details Indication and Details Option Tens digit Unit digit mode of SEG of SEG AN When changing a digit of an indoor unit address setting option set the SEG3 5 CAUTION When changing a digit of indoor unit installation option set the SEG3 as 2 Ex When setting the buzzer control into disuse status Option SEG3 SEGA SEG5 SEG6 The option Thetens digit of The unit digit of Explanation mode you want anoption SEG an option SEG tochange will change you will change Indication 2 1 7 1 The changed value 4 8 Samsung Electronics Troubleshooting 4 1 6 Option code for each model Model Remocon display AC018JN4DCH AC024JN4DCH AC030JN4DCH AC036JN4DCH AC042JN4DCH AC048JN4DCH Model Remocon display AC018JN4DCH AC024JN4DCH AC030JN4DCH AC036JN4DCH AC042JN4DCH AC048JN4DCH
46. door unit 2 Checkthe whole connection part of the power supply 3 Checkthe power on the indoor unit 4 Check the connection of the power supply of the terminal block 6 Connect the power supply Never forget to turn off the power of the terminal box 7 Checkthe power supply parts Check after turning off the power of the terminal box 7 segment off 8 Check everything is normal after separating the fan motor connector and resetting the power Conduct the following test if the mode is not Separate the connector after turning off the power of the terminal box eco mode power saving mode When detaching and attaching the connector during power supply the motor can be damaged 5 Check the connection ofthe power supply between the Main EMI PBA of the outdoor unit 2 Checkprocedure 30 seconds after turning off the main power switch breaker or power socket turn on the power Check all power supply connections 1 Check the power of the terminal box 3 phase Check the power supply of electric power and wire assembling the outdoor unit 2 If the connection is made in the power lines 1 1 the line voltage 380 Vac Yes extension of the power line check whether goo M enr des the lines are firmly connected 2 Is the phase voltage to the neutral MH line 220 Vac 3 Check the circuit breaker due to over current Yes LT R L2 S L3 T gt N _ or leakage Check whether several units
47. e and Temperature button at the same time 3 Check if you have entered the option setting status 00 Option setting procedure The option setting procedure is the same for other models After entering the option setting status select the option as listed below AN Option setting is available from SEG1 to SEG 24 CAUTION SEG1 SEG7 SEG13 SEG19 are not set as page option Set SEG2 SEG6 SEG8 SEG12 in the ON status and SEG14 18 SEG20 24 in the OFF status On SEG1 12 Off SEG13 24 Auto Auto on 114 1 LL Off Samsung Electronics Troubleshooting 4 1 2 The procedure of setting option Option setting Status 1 Setting SEG2 SEG3 option Press Low Fan button V to enter SEG2 value Press High Fan button A to enter SEG3 value Each time you press the button 0 1 F will be selected in rotation 2 Setting Cool mode Press Mode button to be changed to Cool mode in the ON status 3 Setting SEG4 SEG5 option f Press Low Fan button V to enter SEGA value On Press High Fan button A to enter SEG5 value Each time you press the button gt 1 E F will be selected in rotation SEGA SEGS 4 Setting Dry mode Press Mode button to be changed to DRY mode in the ON status 5 Setting SEG6 SEG8
48. e bridge diode is measured with output voltage does the voltage exceed 290 Vdc 3 15 the power supply voltage 12V 4 5 there a fault with a fuse of EMI PBA Short Normal Open Fault Fan Motor Connector After separating and resetting the power check everything is normal Separate the connector after turning off the power to the terminal box When detaching and attaching the connector during power supply the motor can be damaged If it is normal replace the fan motor Outdoor inverter PBA checking part 090 100 125 140 145 RC100DHXB K Samsung Electronics Outdoor main PBA checking part No After replacing the main PBA and resetting the power check everything is normal Outdoor EMI PBA checking part RCO72DHXB K Connect the power supply No Switch off power to the terminal box 1 Connect the power supply 2 Check whether the power of the outdoor unit is supplied by powering on the terminal box Indoor control PBA checking part RCO72DHXB K 4 27 Troubleshooting 4 3 9 Indoor outdoor communication error 1min Error Code E202 1 Test Item 1 Checkthe communication and power connection 2 Checkthe communication connector connection RCO72DHXB Outdoor Unit Inverter PBA CN301 RC090 100 125 140 145 HX AC FCA Outdoor Unit Main PBA CN31 3 Checkthe communication circuit on the PBA 2 Checkprocedure 30 seconds after p
49. e power supply 1 Check the power of the terminal box 3 phase electric power and wire assembling Check the power supply of the outdoor unit 1 Is the line voltage 220 Vac Yes LN No 2 If the connection is made the power lines extension of the power line check whether the lines are firmly connected 3 Check the circuit breaker due to over current or leakage Check whether several units are connected to one breaker 8 090 100 125 140 145 RC072DHXB RC100DHXB Check the connection of the power supply to the terminal block 1 Check wires are correctly connected by referring to the electrical circuit Check the power to the indoor unit No 1 Is the line voltage 220 Vac Yes 1 L lt gt 2 N 720 Connect the power supply Power off the terminal box 1 Connect the power supply 2 Check whether the power of the outdoor unit is supplied by powering on the terminal box Check the connection of the power supply between gt PBA 1 Is there a fault in the connection of the power supply to Main PBA and EMI PBA RCO72DHXB series ignored 4 26 Samsung Electronics Troubleshooting When the outdoor unit power is not ON Initial Diagnosis Single phase product Continued Check the power parts Switch off power to the terminal box before inspection 1 Is there a fault with a fuse Short Normal Open Fault 2 When th
50. ediately and empty the pipes and then open the service valves No Yes Check the replacement of the EEV body coil and the refrigerant leaking part After that recharge Check the EEV operation and the refrigerant leakage Check the temperature value through S NET etc and then if there is a fault replace and reconnect Check the fault in the indoor unit EVA sensor and the connection state Samsung Electronics 4 43 Troubleshooting 4 3 19 Other 1 Current sensor error Upload EEPROM to the main PBA of the outdoor unit After checking for normal operation of PCB replace the inverter PCB 2 Compressor Viimit error E465 If the compressor is abnormally run replace the compressor and then ensure that it works normally lf the compressor is normally run check the assembling between the heatproof plate and the inverter PBA and then if there is no abnormality replace the inverter PBA 3 OTP error E471 Upload EEPROM to the main PBA of the outdoor unit 4 Capacity inconsistence error E556 Checkthe model name between the outdoor and indoor unit and re enter the option code to the indoor unit 5 3 phase power cable disconnection E424 Checkfor disconnection of the 3 phase open power cable and check the disconnected EMI PBA fuse Series Confirmation Matters 6 Outdoor unit freezing detection at the stop of the compressor E403 Outdoor overload protection control
51. emperature variation Room temperature sense condition can be set to Indoor average of wired remote controller to minimize the variation in temperature between the upper and lower levels generated by the effects of indoor air flow so that optimum room temperature will be maintained Obtained Sterilization Treatment SF mark that removes the threat of mildew The equipment is very sanitary as an indoor heat exchange unit and filters are treated with world recognized sterilization treatment technology to prevent the growth of mildew inside the unit Convenient control for high ceilings with wind velocity control function When the unit is installed indoors air flow can be set to reach the floor through the PCB option so that the unit can be installed on a ceiling with a height of 3 5 meters Temperature setting A Indoor unit temperature setting Temperature setting B Wired remote controller temperature setting e Patent registered in Korea USA Japan and Italy Patent number Korea P 082555 Italy 1294250 USA 594 Indoor PCB option setting ON Increase wind velocity OFF Decrease wind velocity When installing on a ceiling of 3m or lower When installing on a ceiling of 3m or higher Samsung Electronics Product Specifications Convenience with more added details Easier than Ever to Clean the Blade Other products require you to disassemble and remove the panel in order to
52. er and there is no indication in 7 segment of the main PBA of the outdoor unit replace the main PBA The outdoor unit inverter PBA is normal Para T Main PBA 7 segment RCSERKHXG RCHSDHXH RCK HX E RCTOODHXBX confirming part Inverter PBA LED Inverter PBA LED confirming part confirming part 4 30 Samsung Electronics Troubleshooting 4 3 11 External Sensor Error Error Code E221 E231 E251 E320 1 1 Check connection of the temperature sensor connector Error Code Description 2 Checkthe resistance value of the temperature sensor E221 Error of the temperature sensor of the outdoor unit E231 Error ofthe COND sensor of the outdoor unit E251 Error of the discharge sensor of the outdoor unit E320 Error of the OLP sensor of the outdoor unit 2 Checkprocedure Power OFF Is the temperature sensor connector connected 090 100 125 140 145 Is the temperature sensor measuring resistance similar to the table on the left OLPsensor 200 at 25 Discharge sensor 200 0 at 25 C IMCOND Sensor 10 at 25 C M Outdoorunit temperature sensor 10 0 at25 C 090 100 125 140 145 Is the temperature sensor connector reconnected mala 1 1 1 R
53. eration off operation off operation off operation off operation off No communication for 2 minutes between indoor and outdoor unit communication error for more than 2 minutes Error of outdoor unit Check connection between indoor and outdoor heat exchangers communication cables Check error occurred with outdoor heat exchanger TERMINAL Block thermal FUSE error OPEN operation off operation off operation off operation off operation off Detection of the float switch EEPROM error EEPROM option error Check float switch connection Check whether the drain has been filled with water Check ifthere is damage with EEPROM component Check the indoor model to set the options Inspection for match between indoor and outdoor machine models operation off operation off operation off operation off operation off operation off Samsung Electronics Outdoor valve clogging error High pressure check valve clogging operation off operation off off Blink operation off operation off X Off 4 13 Troubleshooting 4 2 4 Wired remote controller If an error occurs EM icon will be displayed the wired remote controller Press the Test button to see the error code Error mode Contents Measure Produc
54. essor wire Power is on Check normal startup End the service Replace the PCB 090 100 125 140 145 X E464 Error related EMI outdoor unit Main Indoor unit Main PBA do not eT replace This error is related to the compressor and Inverter PBA Not related to the above PBA COMP connecting PBA connecting connector connector RCO72DHXB Series 4 38 Samsung Electronics Troubleshooting 4 3 16 DC LINK Over current and Low voltage Error Error Code E466 1 Testltem 1 Check the power supply Check the re startup after the power is reset Is there a fault in input power Does the error occur again at operation after power is reset Checkthe connection of the power and check whether the jointed power connection exists Checkthe reactor and its connecting wires Checkthe fuses of EMI PBA Checkthe terminal block and power terminal box and the wire assembly 2 3 4 5 2 Checkprocedure Power OFF Is the power cable correctly connected Reconnect the power cable 1450 Series Confirmation Matters Yes Common 1 Connect the Wire normally Reactor and Check the reactor and its connecting wires the outdoor unit Inverter PBA 15 the wire between the reactor a
55. ew Driver 2 Cabi Top 1 Unscrew and remove 9 screws on each side of the Cabinet Top Use 4 Screw Driver 3 Cabi Install Front 1 Unscrew and remove 1 screw in the Cabinet Install Front Use 4 Screw Driver 4 Guard Cond 1 Pull the sensor from Guard Cond 2 Unscrew and remove 4 screws in the Guard Cond Use 4 Screw Driver 3 22 Samsung Electronics Disassembly Reassembly 5 Cabi Back RH 1 Pull the sensor from Cabi Back RH 2 Unscrew and remove 4 screws on each side of the Cabinet Back RH Use Screw Driver 6 Cabi Install Back 1 Unscrew and remove 1 screw in the Cabinet Install Back Use Screw Driver 7 Front LF 1 Unscrew and remove 10 screws in the Cabinet Front LF Use Screw Driver 8 Fan 1 Turn 2 mounting nuts as shown in Samsung Electronics the picture and remove it Use Adjustable Wrench 3 23 Disassembly and Reassembly No Parts Procedure Remark Motor 1 Separate the Fan Propeller 2 Unscrew and remove the 8 Motor mounting screws Use Screw Driver 3 Disconnect the Motor wire From Ass y Control Out s 10 Bracket Motor 1 Unscrew and remove 2 mounting screws in Bracket Motor Use Screw Driver 11 Control Out 1 Disconnect 4 Connecters From Ass y Control Out 2 Unscrew and remove 1 mounting screw in Control Out Use Screw Driver 3 Separate Ass y C
56. ing screen gt When you enter the setting stage the current setting will be displayed gt Refer to the chart for data settings gt Using the V buttons select the settings Press the gt button to move to the next setting gt Press the Set button to save the settings and exit to the sub menu setting screen gt Press the Esc button to exit to normal mode e While setting the data you can use the lt gt buttons to set the range of Data bit NOTE while configuring the setting press the Esc button to exit to the setting sub menu without saving your changes Samsung Electronics 4 5 Troubleshooting 4 1 4 Setting an indoor unit installation option Suitable for the condition of each installation location 4 Check whether power is supplied or not When the indoor unit is not plugged in there should be additional power supply in the indoor unit The panel display should be connected to an indoor unit to receive option Set the installation option according to the installation condition of an air conditioner The default setting of an indoor unit installation option is 02000 100000 200000 300000 Individual control of a remote controller SEG20 is the function that controls an indoor unit individually when there is more than one indoor unit Set the indoor unit option by wireless remote controller SEGI SEG2 SEG3 SEG4 SEG5 SEG6 RESERVED d Central control FAN RPM SEG7 SEG8 SEG9
57. le connecting the outdoor unit to the indoor unit and restart the unit If the communication still doesn t work replace the indoor unit PCB Bad 4 20 Samsung Electronics Troubleshooting 4 3 5 Indoor unit float sensor error Indoor unit display X Operation X Defrost Time Filter Symptom The indoor unit floating sensor is open and that state is maintained for more than one minute Increase in the drain pan water level due to failure of the indoor unit drain pump or float sensor failure Error occurs Failure Remove the floating sensor connector connected to the indoor unit PCB and the resistance measured between the two terminals Is the resistance open circuit NO Reassemble the floating sensor connector and reset the outdoor unit power Indoor unit power reset is required Yes NO Same error occurs again Is the water level in the drain pan high Yes Yes No Replace the indoor unit PCB Reset the indoor unit power and Normal operation check the operation of the drain pump it vibrates when operating Replace the floating sensor when it fails and reset the indoor unit power Does drain pump operate when compressor operates Drain pump PCB Is the terminal voltage around AC 220V NO Yes Is the water level in drain pan decreasing Yes Replace the drain pump Replace the indoor unit PCB A F
58. loat sensor error is cleared only Replace the drain pump CAUTION when the indoor power is reset No Samsung Electronics 4 21 Troubleshooting 4 3 6 EEPROM circuit failure Indoor unit display Operation Defrost Timer X Filter Symptom EEPROM circuit failure Failure EEPROM component failure EEPROM circuit parts missing damaged soldering failure E162 occurs Are EEPROM SUM PBA correctly assembled Reassemble EEPROM PBA Is there a problem in soldering failure or short of between EEPROM PIN NO Remove short or soldering failure Replace EEPROM PBA 12 20 25 DB41 01087A 01 Y 4 22 Samsung Electronics Troubleshooting 4 3 7 Thermal Fuse Open Error Indoor unit display X Operation J Defrost Time Filter Symptom Thermal Fuse Open Error Check the connection of the CN140 wire Failure Check the connection of the terminal block Temperature rise by untightening a screw Termal Fuse open E198 occurs Is the CN140 connector of PCB between wire correctly connected Yes Re operation after the connector Measure both ends of connector connected the TERMINAL BLOCK Paragraph Short Has the connector ends Replace the MAIN PBA Samsung Electronics 4 23 Troubleshooting 4 3 8 When the outdoor unit power is not ON Initial Diagnosis 3 phase products 1 Test Item 1 Checkthe power supply of the out
59. ment 4 RED Eco Mode BLANK BLANK BLANK BLANK On Eco Mode Exit Press K3 to go out from the eco mode At the driving signal or test run cooling heating of the user the mode is released Samsung Electronics 4 2 3 Four directions cassette type Error Mode Power reset Troubleshooting Product operation with error Outdoor heat exchanger compressor operation off Outdoor heat exchanger fan operation off Indoor heat exchanger fan operation off Diagnosis method Error of room temperature sensor in the indoor unit Open Short Error of heat exchanger IN OUT sensor in the indoor unit Open Short Check indoor temperature sensor connection Check indoor temperature sensor s resistance value to see if it s short open Check EVA IN OUT sensor connection Check EVA IN OUT sensor s resistance value to see if it s short open operation off operation off operation off operation off operation off operation off Error of fan motor in the indoor unit Error of the outdoor temperature sensor Error of the condensor temperature sensor Error ofthe discharge temperature sensor Check the connection of motor connector Check the speed of the motor fan Check indoor temperature sensor connection Check indoor temperature sensor s resistance value to see if it s short open op
60. n PBA CN39 RCO72DHXB excluded 4 Checkthe communication connections 2 Check procedure 30 seconds after power off power on Does the communication error occur NO End the service Yes In case of RC072DHXB gt excluded replace the PBA After resetting the power reconfirm and then close Check the power connection and fuse Add next to Yes 1 Is there a problem in the power connection between main PBA and the EMI PBA of the outdoor unit 2 15 there a problem in power connection between the inverter and the EMI PBA of the outdoor unit 3 Is the fuse FUSE100 of the inverter PBA of the outdoor unit normal Short Normal Open Fault limited to 145 Is the power of the inverter PBA on RC145DHXH AC100FCA KGH Confirmation Matters J Is there a problem in the connections of communications between the outdoor unit inverter CN31 and main PBA CN39 Check the communication connections RC145DHXH Confirmation Matters Replace the outdoor unit inverter or main PBA 1 If E203 Error to 7 segment of the main PBA of the outdoor unit is displayed replace the inverter PBA and then the main PBA of the outdoor unit is normal 2 If Red ON Green OFF and YELLOW Blink are displayed in the LED display of the outdoor unit invert
61. nd remove 4 screws in the Guard Cond Use Screw Driver 3 14 Cabi Back RH 1 Pull the sensor from Cabi Back RH 2 Unscrew and remove 4 screws on each side of the Cabinet Back RH Use Screw Driver Samsung Electronics Disassembly Reassembly Parts Procedure Remark Cabi Install Back 1 Unscrew and remove 1 screw in the Cabinet Install Back Use Screw Driver 7 Cabi Front LF 1 Unscrew and remove 10 screws in the Cabinet Front LF Use Screw Driver Samsung Electronics 3 15 Disassembly Reassembly Procedure Remark 8 Fan 1 Turn 2 mounting nuts as shown in the picture and remove it Use Adjustable Wrench 3 16 Samsung Electronics Disassembly Reassembly Procedure Remark 1 Separate the Fan Propeller 2 Unscrew and remove the 8 Motor mounting screws Use Screw Driver 3 Disconnect the Motor wire From Ass y Control Out Bracket Motor 1 Unscrew and remove 2 mounting screws in Bracket Motor Use Screw Driver Samsung Electronics 3 17 Disassembly Reassembly Parts Procedure Remark 3 18 Control Out 1 Disconnect 4 Connecters From Ass y Control Out 2 Unscrew and remove 1 mounting screw in Control Out Use Screw Driver 3 Separate Ass y Control Out Samsung Electronics Parts Procedure Remark Disassembly and Reassembly Ass y 4way Val
62. nd the inverter 2 42 5 PBA of the outdoor unit correctly connected 2 Is there any fault such as scratch or pressing of 2 Replace the reactor gt the reactor or broken or Check the normal operation loosened terminal Shut down the service 145 Confirmation Matters 8 090 100 125 140 Confirmation Matters Samsung Electronics 4 39 Troubleshooting DCLINK Over current Low Voltage Error Error Code E466 Continued Is the fuse of the EMI PBA disconnected Replace the fuse 090 100 125 140 100 I Lr l Yes Short Normal Open Fault RC072DHXB Check the terminal block and the power terminal box 1 Connect the screws of the terminal block 1 15 the screw of the terminal block firmly with the power cable Check normal 2 Are the power cable of the power terminal startup End the service box and the terminal firmly 2 Connect the terminal of the power terminal assembled box and the power cable Check normal startup End the service After replacing the inverter PBA of the outdoor unit check normal startup End the service 4 40 Samsung Electronics Troubleshooting 4 3 1
63. ng connector COMP connecting connector RC072DHXB 4 34 Samsung Electronics 4 3 14 Error of under current error over current Error Code E462 E484 1 Testltem Troubleshooting 1 Checkthe power supply Check the re startup after the power is reset Error Code 2 Checkthe outdoor unit installation environment E462 Checkthe disconnection of the wires regarding the inverter PBA of the outdoor unit and check the installation environment ST Description Model Error of the outdoor unit under current Limited to mcs 3 Checkthe indoor unit installation environment 4 Checkthe opening of the service valve 2 Checkprocedure 30 seconds after power off power on Has the outdoor unit been correctly installed Check the outdoor unit installation environment Check everything is normal at re start End the service 1 Check for wire disconnection of the inverter PBA of the outdoor unit 2 Remove the obstacles of the inlet of the outdoor unit and secure the space 3 Remove the obstacles of the outlet of the outdoor unit and secure the space Yes Checking wire disconnection Has the indoor unit been correctly installed Yes No Has the service valve been completely open
64. ode E462 484 4 35 4 3 15 IPM Over current Error Error Code E464 a 4 36 4 3 16 DC LINK Over current and Low voltage Error Error Code 466 4 39 4 3 17 Gas Leakage Error Error Code E554 sssssssssscsssssscsssssssssssesssssseecsssssscsssssscsssnscesssnssessssesessssecess 4 41 4 3 18 Pipe Blocking Error Error Code E422 l re ROM P Re OS ete Ett 4 43 4 44 5 PCB Diagram and Parts 5 1 S NU T m 5 1 u uku u 5 3 99 5 4 5 4 u 5 6 MAIN P GI Lu usss a PH 5 7 SAA INVERTER uuu s 5 8 5 2 5 E u a 5 9 6 Wiring Diagram 6 1 eM iners gi Rl __ 6 1 DX Outdoor UNE recie rere _6_6_ 6 2 7 Reference Sheet 7 1 Index tor Model
65. oduct Specifications 2 2 Product Specifications Development Model ITEM AC018JN4DCH AC024JN4DCH AC030JN4DCH AC018JXADCH AC024JXADCH AC030JXADCH INDOOR UNIT IMAGE OUTDOORUNIT REMOTE CONTROLLER Cooling Btu h 18000 24000 30000 Heating Btu h 20000 27000 32000 Power Cooling W 1540 2110 2890 Consumption Heating W 1600 2500 3110 Cooling Btu hW 1171 11 41 10 41 Heating Btu hW 12 51 10 81 10 31 Voltage Frequency 208 230V 60Hz 208 230V 60Hz 208 230V 60Hz Operating Cooling A 20 9 8 13 4 Current Heating A 74 11 6 14 4 Indoor Unit dBA C H 42 42 45 45 47 47 Outdoor Unit dBA C H 58 58 60 60 60 60 Net Indoor Unit mm 840 840 204 840 840 204 840 840 288 AN Outdoor Unit mm 898 898 275 898 898 275 898 898 357 Shipping Indoor Unit mm 880 310 638 940 330 998 940 330 998 2 MENSON Outdoor Unit mm 1023 413 730 995 426 1096 995 426 1096 WxDxH Indoor Unit ko 15 5 15 5 19 Net Weight en Outdoor Unit kg 45 64 5 70 Shipping Indoor Unit kg 19 5 19 5 24 Weight Outdoor Unit kg 48 69 5 74 Indoor Fan Motor DB31 00578B DB31 00578B DB31 00577A m Compressor UGAT150LNBEO UG4T200LNFE4 UG8T300LNBJU Outdoor Fan Motor DB31 00642A DB31 00579A DB31 00579A Pipin High Pressure 4 1 4 1 4 1 Low Pressure 1 4 1 4 1 4 PANEL PC4NUSKFN Refrigerant Type R410A
66. om other electronic products such as TV video or audio Otherwise the video quality might be degraded or noise might be generated Do not let end users repair the products themselves Unauthorized disassembly might cause electric shock or fire Samsung Electronics 1 1 Precautions 1 3 Precautions related to product safety Do not pull the power cord and do not touch the power plug or aux power switch with wet hands lt might cause electric shock or fire A damaged power line or power plug must be replaced to prevent danger Do not bend the power cable with excessive force and do not place a heavy weight on the case as it might damage the cable t might cause electric shock or fire Do not use multiple electric outlets This might cause electric shock or fire Connect the ground terminal when necessary You must connect the ground terminal if you determine that there is a danger of electric leakage due to moisture or water Unplug the power cable or turn off the auxiliary power switch for electric part replacement and repair service Otherwise it might cause electric shock Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not used for long time Otherwise leakage from the dry cell may cause problems with the remote controller 1 4 Other precautions 1 2 The pipes should have no leaks during installation and the compressor must
67. ompressor replacement Serious abnormal noise Metallic scraping or grinding noise serious vibration Replace the compressor 4 33 Troubleshooting Error of Compressor Startup and Rotation Error Code E461 E467 Continued Continued 1 Are the wires of the compressor correctly assembled in colors U RED V BLU and W YEL 1 Replace the compressor wire Power is on Check for disconnections of PBA and Check normal startup End the service 2 15 the terminal in the compressor wire 2 Replace the compressor wire Power is on housing firmly assembled Check normal startup End the service 3 Is there any fault of part of the compressor wires in deviation or secession After replacing the inverter PBA of the outdoor unit check normal startup gt End the service 8 090 100 125 140 145 E461 E467 Error related EMI outdoor unit Indoor unit PBA do not replace This error is related to the compressor and Inverter PBA Not related to the above PBA Because it is an error regarding the inverter PBA it is not related to the aforementioned PBA X Ensure that the service valve is open a While the service valve is closed and the COMP starts it is possible to cause a fault due to differential pressure E RE PBA connecti
68. ontrol Out 3 24 Samsung Electronics Disassembly and Reassembly No Parts Procedure Remark 12 Assy 4way Valve 1 Purge the Coolant first 2 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 3 Separate the pipe from the Entrance Exit using a welder When removing the compres sor Heat Exchanger and Pipe purge the Coolant inside the Compressor completely and remove the pipe with a welding flame 13 Assy EEV Valve 1 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 2 Separate the pipe from the Entrance Exit using a welder Samsung Electronics 3 25 Troubleshooting 4 Troubleshooting 4 1 Setting an indoor unit address and installation option gt Set the indoor unit address and installation option with remote controller option Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time You need to set twice when setting indoor unit address and installation option 4 1 1 The procedure of setting option Entering mode for x Option setting mode setting option Mode change High Temp Button High Fan Button Low Temp Button Low Fan Button CoO eo lt se gt Entering mode for option setting 1 Remove batteries from the remote controller 2 Insert the batteries while you press Temperatur
69. ontroller I 4 14 4 3 Troubleshooting Dy symptoms 4 17 4 3 1 Indoor temperature sensor open short 4 17 4 3 2 Indoor heat exchanger temperature sensor open short 4 18 4 3 3 Indoor FAN 4 19 4 3 4 Communication error after finishing Tracking erret 4 20 4 3 5 Indoor unit float sensor error tu dat os HE UU 4 21 4 3 6 EEPROM circuit PR UY 4 22 4 3 7 Thermal Fuse Open EFFOF asses recae usen U utor rho S 4 23 4 3 8 When the outdoor unit power is not ON Initial Diagnosis 3 phase products 4 24 4 3 9 Indoor outdoor communication error 1min Error Code E202 4 28 Contents 4 3 10 Communication error between outdoor unit INV MAIN MICOM 1 min Eror Code 4 30 4 3 11 External Sensor Error Error Code E221 E231 E251 E320 4 31 4 3 12 Outdoor Unit Fan Error Error Code E458 E475 sssssssssssssssssscsssssscsssssscssssssesssnssssssssesssseees 4 32 4 3 13 Error of Compressor Startup and Rotation Error Code E461 E467 4 33 4 3 14 Error of under current error PFC over current Error C
70. oosen 4 pcs motor screws and disconnect the wire betwwen assy control out and motor 3 loosen 2 pcs bracket motor screw and detach it 3 10 Samsung Electronics Disassembly and Reassembly Parts Procedure Remark assy control out 1 lossen fixing 1 screw from cover control 2 detach several connections from assy con trol out take out assy control out Heat exchanger 1 Release the refrigerant at first 2 Looosen fixing screw on both side 3 disaessembly the pipes in both inlet and outlet with welding torch 4 detach the heat exchanger Samsung Electronics 3 11 Disassembly Reassembly Parts 5 compressor Procedure 1 disconnect the compressor lead wire 2 disassembly the felt comp sound loosen the 3 bolts at the bottom of Remark Samsung Electronics Disassembly and Reassembly AC024JXADCH AC030JXADCH 1 Cabi Front RH N You must turn off the Power before disassembly 1 Unscrew and remove two mounting screw in the Cabinet Front RH Use Screw Driver 2 Cabi Top 1 Unscrew and remove 9 screws on each side of the Cabinet Top Use Screw Driver 3 Cabi Install Front 1 Unscrew and remove 1 screw in the Cabinet Install Front Use 4 Screw Driver Samsung Electronics 3 13 Disassembly Reassembly No Parts Procedure Remark Guard Cond 1 Pull the sensor from Guard Cond 2 Unscrew a
71. or unit service valve is open Check whether the indoor outdoor installation pipe wiring are correct Check the compressor connection status Check the resistance between difference phases of the compressor Operation Off Operation Off Operation Off Outdoor unit protection control error Outdoor unit protection control error Outdoor unit protection control error DC LINK over low voltage error Check input power Check AC power connection Restart in 3 minutes Outdoor unit protection control error Inverter Compressor rotation error Inverter Current sensor error Inverter DC LINK voltage sensor error Check the compressor connection status Check the resistance between difference phases of the compressor Check EEPROM DATA Check the normal operation of PCB Check the input power connection Check the status of RY21 and R200 in the INVERTER PCB Operation Off Operation Off Operation Off Outdoor unit protection control error Outdoor unit protection control error Outdoor unit protection control error EEPROM Read Write error Operation Off Outdoor unit protection control error Inverter OTP error Check EEPROM DATA Check the normal operation of PCB Operation Off Outdoor unit protection control error AC ZERO CROSSING SIGNAL OUT error Compressor LOCK error Outdoor fan 2 error Check the input power status Check the compressor connection status
72. osting 3 overload 4 discharge 5 under current Three digits Two digits Month Hex Frequency state 0 Normal 1 Hold 2 Down 3 Up limit 4 Down limit One digit Date Two digits Date One digit Ver 2 Short press once after Ver 1 Inverter MICOM version Year Hex Month Hex Date Two digits Date One digit Ver 3 Short press once after Ver 2 E2P version Year Hex Month Hex Press the button long Main MICOM version Press once more shortly Press shortly one more time E2P version Date Two digits Date One digit Samsung Electronics Test mode and view mode Continued DIP Switch Options ON Troubleshooting OFF Set an auto address manual address Snowdrift prevention control not used Snowdrift prevention control used K7 ON Silent control not used ON Silent control used Step 1 OFF Silent control used Step_2 OFF Silent control used Step_3 Samsung Electronics Auto silent mode Manual silent mode 4 11 Troubleshooting 4 2 2 Eco Mode Power Saving Mode Eco mode lamp RED BD LO 080 12 po i LIN ET u LT dH F f Boy sss TELLE EESE ko ee L Eco Mode Lamp Segment 1 Segment 2 Segment 3 Seg
73. ower off power on Does the communication error occur No End the service Check the communication and power connections 1 Are the communication connections correctly assembled as F1 Red and F2 Blue 2 15 the communication between the indoor unit No and the outdoor unit correctly connected 3 Are the power connections 1 L 2 N and the communication connections F1 F2 correctly connected 4 Are the power connections 1 L 2 N correctly Yes Are the power and communication correctly connected Ves assembled Refer to the circuit diagram and the power failure as explained above D A Check the connection of 090 100 125 140 RCO72DHXB the communication connector CN31 RC145DHXH gt of the main AC100FCA GH Series 1 Is the communication between the indoor unit and the outdoor unit correctly connected 2 Are the power connections 1 L 2 N and the communication connections F1 F2 correctly connected 3 Are the power connections 1 L 2 N correctly assembled Refer to the circuit diagram and the power failure as explained above NO Yes 090 100 125 140 145 Check the communication circuit of the main PBA of the outdoor unit 1 Is there a problem in communication IC 2 Is there a fault in
74. ping or grinding noise serious vibration Yes Have the pipes and wires of indoor and outdoor units been correctly installed No Re install correctly under the product specifications Yes Pipe Poorinstallation Wire Samsung Electronics 4 41 Troubleshooting Gas Leakage Error Error Code E554 Continued 4 42 Continued Has the service valve been completely opened Yes Is the indoor EVA sensor correctly connected Yes Has the refrigerant been charged Yes Replace the inverter PCB NO Open the valve Re connect the sensor connector Charge the refrigerant Samsung Electronics Troubleshooting 4 3 18 Pipe Blocking Error Error Code E422 1 Test Item 1 Checkthe open state of the outdoor unit service valve 2 Check the connection of the pipe 3 Checkthe operation of the EEV 4 Checkthe refrigerant leakage 5 Check the connection of the indoor unit PBA EVA sensor 6 Check the fault in the indoor unit EVA sensor 2 Check procedure If there occurs E422 error reset the power and check in the following order No Check whether the pipe is empty and open all the service valves on the gas and liquid pipes Check the opening of the outdoor unit service valve Yes Check the connection of the pipes such as disconnection bent or cross connection with other sets Change and connect the pipes imm
75. plicable Printed in Korea International and or domestic law Code No AC 00094E 1
76. power of the terminal box 1 Connect the power supply inca 2 Check whether the power of the outdoor unit the motor can be damaged is supplied by powering on the terminal box is normal replace the fan motor Outdoor inverter PBA checking part Samsung Electronics 4 25 Troubleshooting When the outdoor unit power is not ON Initial Diagnosis Single phase product 1 Testltem 1 Checkthe power supply to the outdoor unit 2 Checkthe whole connection part of the power supply 4 Checkthe connection of the power supply to the terminal block 3 Checkthe power to the indoor unit 5 Check the connection ofthe power supply between the Main lt gt EMI PBA of the outdoor unit RC072DHXB gt excluded 7 segment off 6 Connect the power supply Never forget to turn off the power ofthe terminal box Conduct the following test ifthe mode 7 Check the power supply parts Check after turning off the power to the terminal box is not eco mode power saving mode 8 Check everything is normal after separating the fan motor connector and resetting the power Separate the connector after turning off the power to the terminal box When detaching and attaching the connector during power supply the motor can be damaged 2 Checkprocedure 30 seconds after turning off the main power switch breaker or power socket turn on the power Check the whole connection part of th
77. ption setting you must input the option twice Step 5 Check operation 1 Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit 2 Take the batteries out of the remote controller and insert them again and then press the operation button 4 4 Samsung Electronics Troubleshooting 4 1 3 Order for Setting Options Wired Remote Controller SEGs for Use Main Menu Sub menu amp RR Fan 5 j i j 60 9 Fan Sp amm Vamm RU Away MDs Range Hood Extera uto ClearJiHumi Saver OA take EIB I centra I 20 Swing Up Dn Humidityeeee Co eeee Lu C2 9E M C SW ae DS kWh CS Ce C oo OA Intake ESC Delete E Saver Cleanup 1 amp GE Clean 2 1 If you want to use the various additional functions for your Wired Remote Controller press the Set and Esc buttons the same time for more than three seconds gt You will enter the additional function settings and the main menu will be displayed 2 Refer to the list of additional functions for your Wired Remote Controller on the next page and select the desired menu gt Using the V buttons select a main menu number and press the gt button to enter the sub menu setting screen gt Using the V buttons select a sub menu number and press the gt button to enter data sett
78. riptions Code No Central controller 0893 034250 Cable tie DB65 10088B Cable clamp DB65 10074E Optional M4 X 16 Screw 6002 000474 User s manual DB68 03736A Installation guide DB68 03721A Samsung Electronics 2 9 Product Specifications 2 3 2 Filter specifications Basic Dust filter DB63 03158A Water wash 2 10 Samsung Electronics 3 Disassembly Reassembly Necessary Tools SCREW DRIVER Qr _ Adjustable Wrench V x HC TE e 8mm 10mm 13mm M6 M8 Hex Wrench Samsung Electronics 3 1 Disassembly and Reassembly 3 1 Indoor unit 1 Push the handles on both sides of the Samsung logo towards the product s interior to open the Grille 2 Push up the green knob in the Open direction and detach the white link from the panel Detach the safety clip 3 Remove the 2 fixed screws to remove the Control Box Cover Use Screw Driver 4 Remove the Remocon Receiver and Blade Connector Wire from the PBA 3EA 5 Push the 4 panel corners and cover downwards to remove it 3 2 Samsung Electronics Disassembly Reassembly 6 Disassemble the bolts that are assembled with the indoor unit at the 4 panel corners 7 Press the Steel Hangers at both sides of the panel inwards and rotate them 90 degrees to remove it from the indoor unit s Hock Remove the panel from the indoor unit 2 Control Box
79. sor error COND temperature sensor error Check sensor connection status Check sensor location Check sensor resistance Check sensor connection status Check sensor location Check sensor resistance Outdoor sensor Operation Off error Outdoor sensor Operation Off error Inverter Emission temperature sensor error Check sensor connection status Check sensor location Check sensor resistance Outdoor sensor Operation Off error Detection of Indoor Freezing when Comp Stops Protection of Outdoor Overload when Comp Stops Emission temperature excessively high Check whether the indoor unit air intake is blocked Check the operation of the indoor fan Check sensor connection status Check sensor location Check sensor resistance No error DISCHARGE temperature control Outdoor unit protection control error Outdoor unit protection control error Outdoor unit protection control error Operation Off Operation Off High pressure blockage error Refrigerant completely Leakage error Check whether the outdoor unit service valve is open Check the connection of the pipes Check the operation of the EEV Check for refrigerant leakage Completely leakage Self diagnostic Operation Off error Cooling operation blocked Heating operation blocked Outdoor fan 1 error Inverter Compressor startup error Check the operation setting state Check temperature sensor
80. t operation in error condition Outdoor unit Compressor Indoor unit Error type Indoor unit communication error Check the communication cable of indoor unit Check the DC output voltage at the communication terminal Communication Operation Off error Duplicated address setting No response error address from indoor unit Check address setting of Indoor units Check indoor unit s quantity setting in outdoor unit Check electriacl connection and setting Communication Operation Off error Communication Operation Off error Indoor temperature sensor open short error Indoor unit Eva In sensor Open Short Check indoor unit room temperature sensor Check indoor unit PCB connector CN41 White Check indoor unit pipe sensor Check indoor PCB connector CN41 White Indoor sensor Operation Off error Indoor sensor Operation Off error Indoor floating switch secondary detection Indoor outdoor communication error 1 min Check indoor unit float sensor Check indoor PCB connector CN5 black Check the communication connection between indoor and outdoor units Check the power line and communication cable connection status Self diagnostic Operation Off error Communication Operation Off error Communication error between indoor outdoor INVe gt MAIN MICOM 1 min Check MAIN Check INVERTER MICOM Communication error Outdoor temperature sen
81. tops Fail Motor connector break away ailure Indoor unit FAN does not run Defective motor or PBA During operation or Operation at the beginning E154 is displayed Is the motor connector CN73 disconnected from the PCB Connect the connector to PCB Check the normal operation Ex Depending on FAN RPM voltage of DC OV DC 6V is output Q Does the motor rotates when operating Is the RPM of motor less than 120 Motor Is voltage of DC OV DC 6V displayed 3244 CARD HiTESTER Check the motor Checkthe PCB and replace it replace it Samsung Electronics 4 19 Troubleshooting 4 3 4 Communication error after finishing Tracking Indoor unit display X Operation jp Defrost Cp Timer X Filter Symptom Communication error between the indoor and outdoor unit for two minutes Failure Communication error between the indoor unit and outdoor unit s there a response from the indoor PCB Check the communication cable and LEDO1 RED is not ON replace the indoor unit PCB Remove the communication cable connecting the outdoor unit to indoor unit and measure the signal on LINE 2 of the outdoor unit with a scope In this case is the voltage waveform between the lines square wave with amplitude over 0 7 as shown in the following picture Check the communication cable in the outdoor unit PCB and replace the PCB Reconnect the cab
82. troller error remote controller Communication error between the Master and Slave wired remote controllers Check the option switch for defining the Master and Wired remote Normal operation Slave only one Master and one Slave can exist controller error COM1 COM2 cross installation Check that wired remote controller is connected to the Wired remote Normal operation error terminal of the indoor unit controller error Wired remote controller COM2 Wired rem Check that Com1 2 setting DIP switch is set to 2 Normal operation option setting error controller error 4 16 Samsung Electronics Troubleshooting 4 3 Troubleshooting by symptoms 4 3 1 Indoor temperature sensor open short Indoor unit display X Operation j Defrost X Timer X Filter Symptom In case of open or short circuit of indoor temperature sensor Failure Short or leakage of the corresponding sensor Is indoor temperature sensor disconnected from the connector in PCB Yes Restart the system after connecting to the PCB connector Remove the indoor temperature sensor connector from the PCB and measure the resistance between two terminals Temperature sensor resistance value Current Resistance temperature C 40 5 800 35 6 900 n this case is the resistance Yes value out of range in the temperature table
83. ts Take the Motor Wires attached to these three locations out with your hands prior to removing the Motor 8 Evaporator 1 Remove the screws of the 2 Steel Holder Evaps that are used to fix the Heat and then remove it Use Screw Driver 2 Remove the 2 fixing screws of the Partition Evap at the Heat Exchanger s In Out Pipe Use Screw Driver 3 6 Samsung Electronics Disassembly and Reassembly Samsung Electronics 3 Remove the screw of the Cover Pipe that is used to fix the In Out Pipe Remove the In Out Pipe Use Screw Driver 4 Remove the Heat Exchanger from the indoor unit s cabinet Disassembly Reassembly 3 2 Outdoor Unit ACO18JXADCH No Parts Procedure Remark 1 common work 1 loosen 1 pcs screw of cover control and detach it 2 loosen 5 pcs screws on both right and left cabniet side edges and to detach the cover top 3 Loosen 7 screwsfixed to disassemble cabi front and detach it 3 8 Samsung Electronics Parts Procedure common work 4 loosen 7 screws to disassemble the cabi right detach it 5 loosen 2 screws to disassemble steel bar 6 loosen 3 screws to disassemble cabi left Samsung Electronics Disassembly and Reassembly Remark Disassembly Reassembly Parts Procedure fan amp motor 1 loosen 1 screw as indication and detached the fan 2 l
84. ve Samsung Electronics 1 Purge the Coolant first 2 Unscrew and remove 2mounting screws in muffler 3 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 4 Separate the pipe from the Entrance Exit using a welder N When removing the compressor Heat Exchanger and Pipe purge the Coolant inside the Compressor completely and remove the pipe with a welding flame 3 19 Disassembly and Reassembly Ass y EEV Valve 1 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 2 Separate the pipe from the Entrance Exit using a welder 3 20 Compressor 1 Unscrew and remove 1 mounting nut in Cover Terminal Use Adjustable Wrench 2 Separate the Compressor Felt Sound Samsung Electronics Procedure Remark Disassembly and Reassembly 15 Cond Out Samsung Electronics 3 Asshown in the picture unscrew and remove 3 mounting screws from the bottom Use Adjustable Wrench 1 Unscrew and remove 3 screws on each side of the Assy Cond Out Use Screw Driver 2 Separate the Compressor Felt Sound 3 21 Disassembly Reassembly 036 AC042JXADCH AC048JXADCH No Parts Procedure Remark 1 Cabi Front RH You must turn off the Power before disassembly 1 Unscrew and remove two mounting screw in the Cabinet Front RH Use 4 Scr
85. voltage of the fan motor connector in the inverter PBA of the outdoor unit 4 Check the single fan motor Do not forget to separate the motor connector 30 seconds after power off 2 Checkprocedure Check after power OFF Check the connection of the fan connectors CN90 CN91 or CN901 1 Is the outdoor fan connector correctly connected 2 Arethe wires of the external fan connector correctly connected Check the voltage of the fan connector to the inverter PBA of the outdoor unit After power is ON check the voltage between connector pins 1 Is the DC Link voltage correct Normal 280Vdc lt DC Link voltage lt 360Vdc 2 5 the fan control voltage correct Normal 14Vdc lt FAN control voltage lt 16Vdc 3 5 the fan command voltage Normal 2Vdc lt FAN command voltage lt 5Vdc Yes Check the single fan motor 30 seconds after power is off 1 Are the resistance values between pins of the fan motor connector similar to those in the following table NO Yes After power is on check everything is normal End the service Connect the connections of Connect the connections of the outdoor unit which has the outdoor unit which has No Connect the fan corrector CN90 CN91 or CN901 correctly Power is on After confirming the state is normal end the service La E i Eras Tira

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