Single Packaged Air Conditioner SERVICE MANUAL
Contents
1. nv jt 472 250 DC 5 me CN RETURN AIR R07H IK 12 po ROBH IK INDOOR CN_B CYCLE i8 p omg T his t Hs en P67 AN RYS XCDMPKB94 7 RIOHIK c IT ANE RY4 COMPAD ET rs ms Ios PIPE mp CYCLE T D RUHK 4 t MICOM I 75 R12H 1K EI CN TEMP OUT BP z 2520n gt T 9 8 erc 57 S 9 7 8 se PEOCAINO 7 00 AAYS ECONXCLOSE T 9 CN_PHASE 2 e 10 qus MEAE 5 p I RYILCFANQUT 4 lt IU 034 100 Icora T THMOSTATS RY10_ lt FANCIND lt EN 15 2 pos 13 coza s gt SCC nm RY142. USING ELECTRIC CAUTION HEATER OPTION The unit can sense phase reversal error amp phase loss TS with micro processor If there s a phase problem on zu oe unit the micro stop the unit and show gt error message on the LCD wired remote controller with the service manual check power connection pontine But all electrical work shall only be done by qualified s 9 sel TS personel in consideration of the current safety regulation 49 gt A T i ols Power Supply E 5 515 m m S BK m m s of ie MEC NCR _ RD RD BK BK m e jr E D Pal m 2 MAGNETIC CONTACTOR inl Crankcase Heller 9 og go U n 2 8 Un WH oS BoE RD RD oo id MAGNETIC CONTACTOR A N BK BK Lana LR 2 Dc FUSE Crankcase Heater BK BK gt sa Ry id U oziz
3. No DESCRIPTION 2408 00 2408 00 REMARKS 145610 1 PULLEY ASSEMBLY 3A00217S 5400291617 Indoor Motor 145610 2 PULLEY ASSEMBLY 4561A30003E 5400315505 Blower Side 152302 FILTER MECH A C 5230A20003Q 5400303915 249950 CONTROL BOX ASSEMBLY SINGLE 4995A10092F 5400296106 263230 THERMISTOR ASSEMBLY EBG30413001 5400390201 Pipe Sensor A cycle 263230 THERMISTOR ASSEMBLY EBG30413002 5400390202 Pipe Sensor B cycle 263230 THERMISTOR ASSEMBLY 6323A20010A 5400403001 Outdoor Temp Sensor 267110 REMOTE CONTROL ASSEMBLY 6711A20043B 5400305202 268714 PWB PCB ASSEMBLY MAIN 6871A10041H 5400296908 330870 DRAIN PAN ASSEMBLY 3087A10013C 5400290203 342800 BEARING 4A00131B 5400315402 346810 MOTOR ASSEMBLY INDOOR 4681A20093D 5400290904 349600 BRACKET ASSEMBLY 4811A10001A 5400315301 354210 EVAPORATOR ASSEMBLY FIRST 5421A20151A 5400292001 359012 FAN ASSEMBLY BLOWER 5835A20003D 5400315204 435312 GRILLE ASSEMBLY DISCHARGE OUTDOOR 3530A20007H 5400157708 437212 PANEL REAR OUTDOOR 3720A10249B 5400303002 546810 MOTOR ASSEMBLY OUTDOOR 4681A20106E 5400300905 548490 ACCUMULATOR ASSEMBLY MECH 4848A20001 J 5400389601 549610 MOUNT ASSEMBLY MOTOR OUTDOOR 4961A20029A 5400301001 552111 1 TUBE ASSEMBLY CAPILLARY 5211A10549A 5400309601 For A cycle 552111 2 TUBE ASSEMBLY CAPILLARY 5211A10549B 54
4. 5 A O v 3200 3800 Do mo ojojo Q96006A0189 844 SSOOTA STOOTA 4 Feature of Remote Controller LCD gt OPERATION SET TEMP SUB FUNCTION Jk Room Temp AS Heater Preheat Defrost Filter Out door Timer Operation unit On Off Setno Time 01 03 05 07 09 44 13 15 17 19 21 23 26 Single Air Conditioner 5 Error Mode amp Corrective Method Features of Controller sensor 0 5V Check the temp sensor of indoor pipe Error mode Cause of error Sensing condition of error Method of SVC Remark OPEN SHORT of Voltage of sensing Over 4 8V 1 Check the voltage of CO1H Room CH01 room temp Voltage of sensing Less than on the remote controller temp 25 C sensor 0 5V 2 Check the temp sensor of DC 2 5V remtot
5. CAPILLARY TUBE OUTDOOR 2 0 1 D 1EA INDOOR COIL PRESSURE PRESSURE COIL CHECK PORT 4 tf CHECK PORT 7 N 7 HI PRESSURE SWTICH Cooling Heating CHECK Q LOW PRESSURE SWTICH PRESSURE CHECK PORT CAPILLARY TUBE 2 0 D EA PRESSURE CHECK PORT HI PRESSURE SWTICH Cooling ft Heating ACCUM LOW PRESSURE SWTICH CAPILLARY TUBE 1 8 LD 9EA CAPILLARY TUBE 1 8 0 pae Refrigerant Flow Service Manual 11 Wiring Diagram Wiring Diagram EK H2408C00 4 gt
6. Meanings of symbols used in this manual are as shown below Q Be sure not to do Be sure to follow the instruction A WARNING installation Do not use a defective or For electrical work contact the Always ground the product underrated circuit breaker Use dealer seller a qualified this appliance on a dedicated electrician or an Authorized circuit Service Center There is risk of fire or electric Do not disassemble or repair the There is risk of fire or electric shock product There is risk of fire or shock electric shock Install the panel and the cover of Always install a dedicated circuit Use the correctly rated breaker control box securely and breaker or fuse There is risk of fire or electric Improper wiring or installation There is risk of fire or electric shock may cause fire or electric shock shock Service Manual 3 Safety Precautions Use the specified wires to Do not install remove or re Be cautious when unpacking and connect the unit install the unit by yourself installing the product customer There is risk of fire or electric There is risk of fire electric e Sharp edges could cause injury Be shock shock explosion or injury especially careful of the case edges and the fins on the condenser and evaporator For installation always contact Do not install the product on a Be sure the installation area the dealer or an Authoriz
7. 1 BK BK A _ FIRE ALARM FIRE BS 240 ALARM r YL a 2 z lt CAPACITOR x E BK if REMOVE JUMP WIRE WHEN FIELD 518 i Wi 380 415V3N CONNECTING FIRE ALARM INSTALLATION z KW J sis EN 00 2 BR CAPACITOR HUMIDIFIER 0 Power Supply NOTE BK MAGNETIC CONTACTOR TERMINAL BK BLACK RD RED CANNOT BE USEDWHEN BLOCK FIELD WIRING BR BROWN WH WHITE 38540202900 USING THE THERMOSTAT FACTORY WIRING ORORANGE YL YELLOW e 54 003399 19 Rev a BL BLUE J 12 Single Packaged Air Conditioner Troubleshooting Guide Troubleshooting Guide PACKAGE AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 457V 380 415V 342V 1 No cooling and heating operation performed 1 Both the blower and the compressor do not work WHAT TROUBLED Other parts except the unit COMPLAINTS Electric supply interrupted Defective power wiring Cut off power fuse HOW TO CHECK Measure power sypply with a tester in case that the same power source is supplied to other equipment except the unit what and where troubled can be discovered by checking the operation of other equipment REMEDY Repair a switch box and relative instrument Replacement of fuse Request a power supplier to repair Too low voltage Measure it with a tester Check the power source Use
8. LG Single Packaged Air EN Q JV SERV MANUAL MODEL EK H2408C00 Air Conditioner Service Manual TABLE OF CONTENTS Safety Preca tlons u a a Waka uwa ak 3 Model Number Nomenclature 8 General Datel 9 Dimensions cos oso ati b Sua Eu 10 Refrigerant Circuit diagram 11 Wiring Diagrami ua ae oor 12 Trouble Shooting Guide 13 Electric Parts Trouble Shooting Guide nn 17 Feature of Controller Dien ata Pe tesis 24 Exploded View and Replacement Parts List 30 2 Single Packaged Air Conditioner Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed Be sure to read before installing the air conditioner E Be sure to observe the cautions specified here as they include important items related to safety E Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury A CAUTION This symbol indicates the possibility of injury or damage to properties only
9. e m d V T BR grs w RD zz Fy Mee o5 R 22 EL BR Ges E s BK MAGNETIC CONTACTOR B BK 2 380 415V3N OSCBK wH lt SV _ o WH Ry 8 50Hz WH BK to kjs g rw R 8 Power Supply w YL o o 9 z 5 SS BL Ry TERMINAL BLOCK wa 00 128 2 8 queue O s Crankcase 18M BK z ORTON BK xdi wH comp W wH oz FUSE Vin inis Zama S OUT B 8 1 lt Y THERMISTOR o5 o 250V 5A Ry gem zf oo THERMISTOR WH MAGNETIC d 35 THERMISTOR INA 2 9 9 a THERMISTOR IBK BI Crankcase Heater OUT AIR HIGH PRESSURE RD o u BK o5 SWICH B Cycie gt RD e Comp V zz WH OPTION 0 51 BL BL 2 HIGH PRESSURE 2 2 Bo gt 55 RD YE SWICH A Cycle 5 8 OPTION Y Low pressure gt WH 5 WH MAGNETIC CONTACTOR D 4 3 211 SWICH B Cycle WH H 2 TERMINA TERMINAL BK gt Summum 8 LOW PRESSURE 9 2 8 BLOCK BLOCK ak g 8 BK BR BK YL RD YL x x CAPACITOR m o jolololololo E 10 4 3 BK 4 WAY VALVE 1 E s FOR A CYCLE ry bs _ OBR REMOTE T NS i CONTROLLER x Ep ANE 2 Korony o BR CAPACITOR CORB OUT L OR
10. HEATCB t p TOuF S0V Pep sy HEAT A T VAREF H coes 55 sy gt pale zs w LY 68 8 tum ee lt nest P53 TX OUTDOOR T 5 5 52 3 H AA IND H I 52 06 RYIOCFANG ihi 7 7 5 5i E r H 50 ik A T efef 2 P50 Ties 1006 20 sls d P1X DVO 20 49 RY12 ther L o afal 3 n Ji L Le luf 22 P ux FAN UA F1 8 ina mire Hr A CN H P mapas et m E mera m ML em 482 685 we 2 I9 P46 1 03 104007 x 3 RY7CBPCBD4 ele wr ss A eR ge t HH Gm Switch mori Lor as sha Gm sta mu p gt p ka RY8 45 S 1 G 1 OSD CN L P 2 Y9 m mew CN_REMO dal vido SE CN18 lunes ne 1 i ciev CN BYPASS v sten 33 2 21E floral RY13 F v7 zi ly map T FAS 30 des XoUT mui Remocon ee vs EH 5j Bess gt CN ZONE ex Is 42 QO eve Sg Ik 54 xs
11. a thick cable if necessary Magnetic Contactor for compressor amp fan motor Operating switch Control point is on condition of OFF due to trouble Troubled or defective contactor Make short circuit then measure it with tester Check it with the eyes or tester Replace it if necessary Repair or replace it 2 Only Indoor blowers do not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Motor Over heated Wiring short Check it with tester Repair or replace it Electric wiring Cut OFF of wiring Short circuited on operation Check it with a tester Rewiring or Repair Service Manual 13 Troubleshooting Guide 3 Only outdoor fan does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Motor Over heated Check how it is insulated Repair or replace it Wire short Electric Wiring Cut off of wiring Check it with a tester Rewiring or repair Short circuited on operation Capacitor Defected Check it with tester Replace it 4 Only compressor does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Magnetic switch for compressor motor Defective contact magnetic coil troubled Check it with the eyes on with a tester Repair or replace it Compressor motor Troubled over heated Check how it is insulated Replace or repair the layer short compressor High pressure s
12. turn If strange sounds or small or smoke Stop operation and close the window in off the gas and open a window comes from product Turn the breaker storm or hurricane If possible remove the for ventilation before turn the off or disconnect the power supply product from the window before the product on cable hurricane arrives Do not use the telephone or turn There is risk of electric shock or There is risk of property damage switches on or off There is risk of fire failure of product or electric explosion or fire shock Do not open the panel of the product When the product is soaked Be cautious that water could not during operation Do not touch the flooded or submerged contact enter the product electrostatic filter if the unit is so an Authorized Service Center equipped There is risk of fire or electric There is risk of physical injury shock There is risk of fire electric electric shock or product failure shock or product damage Ventilate the product from time to time when Turn the main power off when cleaning or operating it together with a stove etc maintaining the product There is risk of fire or electric shock There is risk of electric shock Service Manual 5 Safety Precautions When the product is not be used for a long time Take care to ensure that nobody could step on or disconnect the power supply plug or turn off the fall onto the unit breaker There is risk of produc
13. 00309602 For B cycle 552201 VALVE CHECK 3A01020L 5400039411 554031 CONDENSER ASSEMBLY FIRST 5403 201375 5400289117 Fin 554160 COMPRESSOR 2520UBDY2AB 5400378101 559010 FAN ASSEMBLY PROPELLER 5901A10010A 5400310701 566000 1 SWITCH PRESSURE 3A02524H 5400156408 Low Pressure Switch 566000 2 SWITCH PRESSURE 3A02524L 5400156411 High Pressure Switch 566001 1 SWITCH MAGNET 6600B000032 5400298301 For Indoor Motor 566001 2 SWITCH MAGNET 6600B000041 5400278625 For Compressor 137210 1 PANEL ASSEMBLY FRONT INDOOR 3721A10073B 5400286702 137210 2 PANEL ASSEMBLY FRONT INDOOR 3721A10074B 5400287102 137213 1 PANEL ASSEMBLY SIDE 3721A10075D 5400301404 137213 2 PANEL ASSEMBLY SIDE 3721A10076C 5400303303 137213 3 PANEL ASSEMBLY SIDE 3721A10076D 5400303304 237204 1 PANEL SIDE 3720A13001C 5400303103 237204 2 PANEL SIDE 3720A13001D 5400303104 WOCZZ CAPACITOR DRAWING 2A00986C 5400126503 For Outdoor Motor W4400 BELT V 4400A30002W 5400291721 W6920 RELAY 6920AP3400A 5400158801 For Outdoor Motor 552202 VALVE REVERSING 5220AP3777C 5400378203 561410 ASSEMBLY REVERSING VALVE 6141AR3733V 5400057720 552111 3 B CAPI ASSY AJR30136901 5400390301 For Heat Pump Service Manual 31 P No 3828A31005F P No 5400305106 Rev a
14. ater operation NO gt 1 Select heater operation mode 1 Reconnecting power supply Is the heater LCD Set temp Room temp NO Press Heater Key 1 Set following Is the output voltage of ICO3D on the NO Set temp Room temp MAIN PCB DC5V Is the output voltage of ICO1M s 16PIN on the NO gt 1 Check or exchange IC03D on the MAIN PCB MAIN PCB 0V Is the voltage NO gt 1 Check or exchange ICO1M between 1PIN of CN5 and NEUTRAL 220V Is the magnetic contactor for NO gt 1 Check or exchange RY1 1 Check the wiring of Magnetic heater OK Check or exchange E Heater contactor 2 Exchange Magnetic contactor Service Manual 23 t Diagram 1 Main Controller Features of Controller Features of Controller
15. change remote controller PCB Possible trouble 5 No cooling operation performed NO Electronic parts Troubleshooting Guide Is the unit operating NO gt 1 Press power ON OFF button 1 Press cooling operation key Is the cooling mode NO 2 After reenergizing power supply press power ON OFF button 1 Set following Set Temp Room Temp Is the output voltage of ICO3D on the MAIN Set Temp lt Room Temp PCB DC5V ls the output voltage of ICO1M s 11 12 COMP B PIN NO 1 Check or exchange IC03D on the MAIN PCB on the MAIN PCB DC0V Is the voltage between A B COMP of CN CONP 1 Check or exchange ICO1M 2 Check 3 minutes time delay and NEUTRAL 220V Is the magnetic contactor NO gt 1 Check or exchange RY4 RY5 COMP B 1 Check the wiring of Magnetic for compressor ON 1 Check Compressor and Capacitor for Compressor NOTE model has not capacitor for compressor contactor 2 Exchange Magnetic contactor Service Manual 19 Electronic parts Troubleshooting Guide Possible trouble 6 No heater operation performed NO Is the heater operation gt 1 Select heater operation mode NO 1 Reconnecting power supply U 2 Is the heater LCD ON Press Heater Key NO 1 Set following Set temp Room temp Se
16. ck or exchange the IC03D on the Main PCB 2 Check or exchange the Connector RED BROWN of the remote controller Service Manual 17 Electronic parts Troubleshooting Guide Is the connection between NO MAIN PCB and remote controlle correct YES s any key on the remote controller keeping pressed Is there Check F on YES the remote controller LCD Possible trouble 3 Key input of remote controller does not respond 1 Check or repair Connector wiring 2 Exchange the Connector 1 Replace the pressed key 2 Exchange the Knob or Key gt 1 Remove cause of Check gt 1 Check 220V Power on the MAIN PCB Is the input power voltage of NO emote controller DC12V Is there OSCO1B vibration NO on the remote controller YES Do Keys have troubles Exchange remote controller YES Are there trouble in LCD parts Is there trouble in the YES gt remote controller PCB ASS Y Exchange remote controller 18 Single Packaged Air Conditioner gt 1 Exchange OSCO1B 2 Check the pattern around OSCO1B on the remote controller PCB gt 1 Check Keys 2 Repair or exchange Key Possible trouble 4 LCD display on the remote controller shows some trouble 1 Check crack damage of LCD 2 Check LCD pattern 1 Check or repair all IC with dust or moisture on the PCB 2 Ex
17. e controller OPEN SHORT of Voltage of sensing Over 4 8V 1 Check the voltage between PIN 3 Pipe temp 25 C CH02 indoor pipe temp Voltage of sensing Less than and 4 of CN A cycle CN B cycle DC 22V Communication Error Communication interruption between remote controller and Check the connecting wire between main PCB remote controller Input voltage of remote controller DC 12V CH03 Main ROG Tors minutes 2 Check the input voltage of remote controller 3 Check the wiring of remote controller OPEN SHORT of Voltage of sensing Over 4 8V 1 Check the voltage between PIN Pipe outdoor pipe Voltage of sensing Less than 1 and 2 of CN A cycle CN B temp 25 C CH04 cycle ON the main PCB DC 2 5V sensor 0 5V 2 Check the temp sensor of remtote controller OPEN SHORT of Voltage of sensing Over 4 8V 1 Check the voltage between Room outdoor room Voltage of sensing Less than PIN 1 and 3 of CN TEMP temp 25 C 05 temp sensor 0 5V OUT on the main PCB DC 2 2V i 2 Check the temp sensor of outdoor room OPEN of Sensing the numer of Low pressure 1 Check Low Pressure Switch CH16 A Cycle Low S W open after power On 2 Check Refrigerant pressure Pressure Switch First time within 1 minute 3 times during 30 minutes after OPEN of first time sensing 1 Check Low Pressure Switch CH17 B_Cycle_Low 6 times until 30 minutes after first Check Refr
18. ed defective installation stand does not deteriorate with age Service Center There is risk of fire electric It may cause injury accident or If the base collapses the air conditioner shock explosion or injury damage to the product could fall with it causing property damage product failure and personal injury Operation Do not let the air conditioner run for Take care to ensure that power Do not place anything on the a long time when the humidity is very cable could not be pulled out or power cable high and a door or a window is left damaged during operation open Moisture may condense and wet There is risk of fire or electric There is risk of fire or electric or damage furniture shock Do not plug or unplug the power supply Do not touch operate the Do not place a heater or other plug during operation product with wet hands appliances near the power cable There is risk of fire or electric There is risk of fire or electrical There is risk of fire and electric shock shock shock 4 Single Packaged Air Conditioner Safety Precautions Do not allow water to run into Do not store or use flammable gas Do not use the product in a electric parts or combustibles near the product tightly closed space for a long time t may cause There is risk of fire There is risk of fire or failure of Oxygen deficiency could occur failure of the product or electric product shock When flammable gas leaks
19. he spot where it is leaked If reversed connect interchanged wires to each terminal Power wirings Note Use an appropriate measuring instrument for readjustment 1 High pressure switch moves 2 Low pressure switch moves Service Manual Troubleshooting Guide 3 The unit is working but not cooling and heating sufficiently Both blower and compressor are working WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Load Much Cooling or Heating Heat load increased Do necessary disposal load Window or door has many respectively cracks or gaps Air flow Obstacle disturbs Intake Checking Correct it of uniform airflow Short air volume Reverse rotation of Checking Correct it blower Refrigerant Shortage in the charged Coil inlet pipe is frosted Recharge it refrigerant Repair the leakage spot Air passage Improper or foreign bodies Checking Correct or clear the foreign bodies Air filter Clogged with dust Checking Cleaning 4 All the functions are performed as specified but very noisy and vibrant WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Compressor Liquid refrigerant flooding Check for refrigerant over charge back from the evaporator Check to see if the intake air temperature is extremely cold Check for insufficient air flow quantity Faulty Discharge valve Checking Replace the and suction valve compressor Bl
20. igerant pressure Pressure Switch time sensing OPEN of Sensing the numer of high pressure CH18 A_Cycle_High S W open after power_On ace Ro Pressure Switch First time within 1 minute g 8 times during 30 minutes after PEN of first time sensing 1 Ch Check High Pressure Switch CH19 B_Cycle_High 6 times until 30 minutes after first 2 Check Refrigerant pressure Pressure Switch time sensing CH21 Reversal Sensing the Reversal Phase 1 Check Power Connection CH22 Phase Loss Sensing the Phase Missing 1 Check Power Connection Service Manual 27 Features of Controller 6 Principal part list of controller Main PCB Remote Pipe Sensor Pipe Sensor Return Air Outdoor Model ASM controller A In Out B In Out Sensor Room Sensor Remark 6323AQ3214M P SUN 6871 10041 6711 20043 EBG30413001 EBG30413002 OPTIONAL 6323A20010A Heat Pump EK H2408C00 9400298512 AROELIKLG No 5400296908 5400305202 15400390201 5400390202 Optional 5400403001 Heat Pump 7 Principal partlist of Main PCB ASM PartNolG PatNoARCELIKLG Part Name Remarks 1 EAN30788301 5400403601 MICOM MAIN H P 2 6920WRD008A 5400403701 RELAY RY3 4 5 10 11 13 14 3 6920AQ9054F 5400061906 RELAY RY1 2 8 9 12 4 6212A90001E 5400314805 RESONATOR 5 6900AQ9028N 5400061413 FUSE 6 6102AQ9075A 5400057601 VARISTOR 8 Principal partl
21. ist of Remote Controller No Part No LG Part No ARCELIK LG Part Name Remarks 1 OITO641010B 5400403801 MICOM Remote Controller MICOM 2 6304A30001C 5400315003 LCD 3 6871A20043A 5400403901 Remote C PCB ASM Cooling Only 4 6871A20043H 5400403908 Remote C PCB ASM Heat Pump 28 Single Packaged Air Conditioner Features of Controller 9 Explanation of principal function Flow Chart START Power supply YES 1 Initialize micom 2 A D convert 3 Main PCB Waiting cooling operation 4 Remote controller Waiting input a YES NO Dehumidification Mode Heater operation mode YES Power ON 1 Dehumidification operating NO YES Set Temp gt Indoor Temp Cooling Mode Stop condition Heater operating YES No Set Temp lt Indoor Temp Stop condition Time delay mode NO Cooling operating _ Fan only operating Stop condition Stop condition Service Manual 29 Exploded View Replacement Parts List E Exploded View and Replacement Parts List Exploded View 37213 D 4 30 Single Air Conditioner Replacement Parts List Exploded View and Replacement Parts List LOCATION LG PART No ARCELIK LG PART No
22. l Number Nomenclature N Model Number Nomenclature kH 2 s 5 6 7 8 1 Manufacturing plant Refrigerant 2 Classification 3 Type A Changwon R 410A E Turkey R410A K Turkey R 22 L Changwon R 22 K Single packed Air Conditioner N Ducted split Air Conditioner C Cooling Only H Heat pump 4 Capacity Btu h 036 36000 Btu h 360 360000Btu h 5 Voltage frequency phase 380 415V 50Hz 3Phase 380V 60Hz 3Phase 220V 60Hz 3Phase 440 460V 60Hz 3Phase 6 Airflow Top Side Convertible Air Flow Down Horizontal Horizontal Air Flow 7 Method SEER MICOM Control 10 Mechanic Control 10 gt TOUU oo Mechanic Control 13 8 Development Sequence Given Number by Delevelopment Sequence 8 Single Packaged Air Conditioner General Data General Data Nominal ton Ton 20 Models EK H2408C00 Capacity Cooling Capacity net Btu hr 225 000 W 65 941 Kcal h 56 699 Heating Capacity net Btu hr 250 000 W 73 268 Kcal h 62 999 Electrical Data Voltage V PH 380 415V 3PH with standard motor Cooling Heating Amps 70 Power Input Cooling Heating Watt 26 500 27 800 Perfor
23. mance Air Circulation Nominal CFM CFM 7 500 EER SEER Cooling Heating Btu hr W 8 5 9 0 Sound Rating Bell 9 2 Feature Wired Remote Controller Time Delay Safety Function Cooling Operation Heating Operation Mode with E Heater Soft Dry Operation Timer setting 24 Hour on off Auto Restart Mode Humidifier Funtion Test Function Defrost Hot Start Self Diagnosis Function Phase Reversal Error Sensing Phase Loss Sensing Filter Type Washable amp Anti Fungus Compressor Type Scroll Quantity 4 Outdoor Coil Type High Efficiency Tube Size O D inch 9 32 mm 7 Row FPI 17 Length inch 78 3 4 mm 2 000 Face area sq ft 41 59 m 3 86 Indoor Coil Type High Efficiency Tube Size O D inch 3 8 mm 9 52 Row FPI 16 Length inch 39 3 8 mm 1 000 Face area sq ft 14 22 m 1 32 Outdoor Fan Propeller No Used Diameter in 4EA 22 Drive Type Direct CFM 12 500 No Motor Motor Output Hp 410 4 Motor RPM 950 Indoor Fan Type Centrifugal Blower Fan No Used 1 Diameter Width inch inch 18 18 Drive Type Motor Step Belt 1 No Motors 1EA Motor Output standard oversized hp hp 5 Hp 7 5 Hp Motor rpm standard oversized hp hp 2 870 2 900 2 860 2 900 Drain Connection Size in 1 Dimensions WxHxD inch 114 3 82 49 7 82 86 5 8 mm 2 898 1 250 2 200 Net Weight kg 900 Ibs 1 984 1 Test Condition of ISO Ra
24. ol air for long Do not use the product for special purposes such as preserving periods of time Don t sit in the draft foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property This could harm to your health Do not block the inlet or outlet of Use a soft cloth to clean Do not Do not touch the metal parts of the air flow use harsh detergents solvents product when removing the air filter etc They are very sharp t may cause product failure There is risk of fire electric There is risk of personal injury shock or damage to the plastic parts of the product Oii d iu 4 L Do not step on or put anything Always insert the filter securely Clean Do not insert hands or other objects on the product outdoor units the filter every four weeks or more through the air inlet or outlet while the often if necessary product is operated There is risk of personal injury A dirty filter reduces the efficiency of There are sharp and moving parts and failure of product the air conditioner and could cause that could cause personal injury product malfunction or damage Do not drink the water drained from the product Use a firm stool or ladder when cleaning or maintaining the product t is not sanitary and could cause serious health Be careful and avoid personal injury issues Service Manual 7 Mode
25. ower Fan broken Checking Repair or replace it Foreign matters intruded DS 53995 Screws Looseness or fail off of Checking Correct Screws Electric troubles Defective contact Checking Repair and clean or Magnetic contactor Defective contact point replace it Rusting and foreign matters in the iron core contact face Defective contact of the operating switch Others Improper installation Checking Correct it 16 Single Packaged Air Conditioner Electronic parts Troubleshooting Guide Electronic parts Troubleshooting Guide Possible trouble 1 The unit does not operate Is the input voltage of NO Main PCB AC220V s the output voltage NO 1 Check the Fuse 2 Check the wiring of AC220V of IC03D 7812 on the main PCB DC5V Is the output voltage NO gt 1 Exchange 1 030 7805 on the main PCB of IC01A 7036 on the main PCB DC5V OSCO B vibration NO gt 1 Exchange IC01A 7036 on the main PCB 1 Exchange 5 1 Exchange main PCB ASS Y 2 Check the pattern around OSCO B on the main PCB Possible trouble 2 The remote controller does not operate NO Is the power ON Is the input voltage NO of remote controller DC12V 1 Exchange remote controller 2 Check or exchange the Main ASS Y gt 1 Check the FUSE 2 Check the input voltage of Main PCB ASS Y 1 Che
26. t damage or failure or This could result in personal injury and product unintended operation damage CIN S ACAUTION Installation Always check for gas refrigerant Install the drain hose to ensure Keep level even when installing pressure after installation or repairof that water is drained away the product product properly Low refrigerant levels may cause A bad connection may cause To avoid vibration or water failure of product water leakage leakage Do not install the product where the noiseor Don t use people to lift and Do not install the product where it hot air from the outdoor unit could damage transport the product will be exposed to sea wind salt the neighborhoods spray directly t may cause a problem for your Avoid personal injury It may cause corrosion on the product Corrosion neighbors particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Having perfect vacuum process in the factory our units don t have drier but have filter in the refrigerant circuit In case of recharging R 410A gas in the field DRIER must be installed on the liquid line which is connected from discharge part of condenser to intake part of evaporator Because the refrigerant circuit is capable of containing water with imperfect vacuum 6 Single Packaged Air Conditioner Safety Precautions Operation Do not expose the skin directly to co
27. t temp Room temp Is the output voltage of ICO3D on the MAIN PCB DC5V NO 1 Check or exchange IC03D ICO2D on the MAIN PCB Is the output voltage of ICO2M s 15 16PIN on the Ne gt 1 Check or exchange ICO2M MAIN PCB 0V Is the voltage NO between A B Heat B of CN HEA gt 1 Check or exchange RY13 RY14 Heat A and NEUTRAL 220V2 NO 1 Check the wiring of Magnetic Is the magnetic contactor for heater ON contactor 2 Exchange Magnetic contactor Check or exchange E Heater 20 Single Packaged Air Conditioner Possible trouble 7 Is the indoor fan operation Is the HUMID LCD Is the output voltage of IC03D on the MAIN PCB DC5V Is the output voltage of IC01M s 10PIN on he MAIN PCB 0V Is the voltage between 1PIN of CN HUMID and NEUTRAL 220V Is the magnetic contactor for humidifier ON Check the humidifier No humidifier operation performed NO Electronic parts Troubleshooting Guide NO 1 Press cooling or fan operation or heater operation key NO 1 Press humidifier Key NO gt 1 Check or exchange IC02D on the MAIN PCB NO 1 Check or exchange ICO1M NO 1 Check or exchange 1 Check the wiring or Magnetic contactor 2 Exchange Magnetic contactor Service Manual 21 Electronic parts Tro
28. ted Cooling Capacity amp Heating Capacity Cooling Ambient 95 F Air Entering Temperature 80 6 F DB and 6 2 F WB Heating Ambient 44 8 F Air Entering Temperature 68 F DB and 59 F WB 2 Filters are standard supply Service Manual 9 Dimensions E Dimensions UNIT Dimensions Figure 1A Unit inch mm UNITS 20RT H 49 7 32 1250 86 5 8 2200 114 3 32 2898 K 7 3 2 180 L 48 13 32 1230 M 3 5 32 80 N 3 5 32 80 HORIZONTAL FLOW APPLICATION Figure 1B Unit inch mm UNITS 20RT A 34 5 8 880 17 5 8 448 23 5 600 3 31 32 101 7 5 32 182 39 3 8 1000 5 1 8 137 5 25 19 32 650 DOWN FLOW APPLICATION Figure 1C Unit inch mm UNITS 20RT A 23 5 600 15 5 8 396 34 5 8 880 6 11 16 170 6 4 8 165 39 9 8 1000 6 11 16 170 25 19 23 650 10 Single Air Conditioner CLEARANCE 34 CLEARANCE 34 CLEARANCE 46 Figure 1A CLEARANCE 34 CLEARANCE 34 Figure 1B TOP VIEW Figure 1C Refrigerant Circuit Diagram Refrigerant Circuit Diagram CAPILLARY TUBE CHECK 2 0 D 3EA i 3 36 D 23EA VALVE e CAPILLARY 2 0 1 0 TOC CHECK VALVE 3 36 D 23EA
29. ubleshooting Guide Possible trouble 8 Indoor motor does not operate NO Is the unit operating Is the output gt 1 Press power ON OFF button 2 Reconnect the power supply 1 Check or exchange IC01M voltage of IC02M s 14PIN on NO the MAIN PCB 0V Is the voltage NO between 1PIN IN of CN FAN IN and NEUTRAL 220V NO 1 Check or exchange RY10 Is the Power relay for indoor motor ON Check the indoor motor Possible trouble 9 Outdoor motor does not operate NO 1 Check the wiring of Power relay 2 Exchange Power relay Is it cooling operation NO 1 Press power ON OFF button 2 Select cooling operation 1 Set following Is the compressor operating Set temp lt Room temp 2 Wait if the unit has operating with 3 minute time delay Is the output NO voltage of ICO2M s 13 12 OUT FAN on the MAIN PCB 0V Is the voltage NO between OUT of CN FAN and 1 Check or exchange IC02M NEUTRAL 220V Is the Power relay for NO 1 Check or exchange RY11 RY12 OUT FAN B 1 Check the wiring of outdoor motor ON Check the outdoor motor A B 22 Single Packaged Air Conditioner Power relay 2 Exchange Power relay Possible trouble 10 No heater operation performed NO Electronic parts Troubleshooting Guide Is the he
30. v P32 oe QAO BIE 35 091 pao 1 CN3 4G P33 IG BME 36 T fere P34 Po EV m 3 pop Hea h 35 5 sv lae 3304 EFE 1000 9 ad RY4 lt COMPCAD COMPCA ele 236 M xs Ne RYSKCDMPCE CN2 ee oe SE ii SICH api HESS i OMP 40 rw E x OO 77 toi ISHA Em coeprupsep m 275 A TNY 45 Ico pan gt 20020 104 974 eje e gt NEUTRAL 24 Single Packaged Air Conditioner 2 Feature of Main Cont roller 810980 NO ZONE n Gas j p 69 z 606 8 e s a mm 5 ZDF e oe v 10m z o Ed x 5 7031 u 9218 2 8 5 mm oz z E amp 5 m mu g 5 lu E 55 AN mmo
31. witch Troubled or defective Check it with a tester Replace it if contact or operating necessary Electric circuit Defective connection or disconnection of the circuit for compressor Check it with a tester Rewiring or push reset button 14 Single Packaged Air Conditioner 2 The Units discontinue after the operation started Troubleshooting Guide WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Outdoor coil Coil is dirty 1 Checking Wash it by means of something like chemical washing In condensable gas blended Air intruded into the refrigerant pipe line 1 In the event that difference between the saturating temperature corresponding to high pressure and the temperature of air discharged from the outdoor coil is more than 15 C incondensable gas may be blended Extract air by vacuum pump then replenish charge the refrigerant High pressure switch Improper adjustment Check it with a pressure gauge Read just it to normal operating pressure Note Don t alternate the specified adjusting pressure If the adjusted pressure exceed the specified range it will cause a great accident Refrigerant Outdoor Fan A shortage of refrigerant amount 2 Reverse rotation of fan Obstacle Air short circuit 1 Check pressure Confirm the wind blowing out upward Check it with eyes Replenish the refrigerant Repair t
32. z leo S x o 9 9 P mm mm ss 3 QE ss o o 5 5 E E 8 5 os vaa 8 888 zoar _ g ag H FERRE m z 2 2 5 6 88 oc 2 f H 8 5 a 5 2 8 5 z 8 a gawoo a 8 5 5 SAH z o 8 YN S a 8 8 HH ood K x lo 5 di PI 2 3SVHd NO 8 2 ALLA x H n 5 lt 80 BIO o h OLAH z amp H Im lt 21 lt PLOUNZ asna H3MOd NO CN SUB BP A COMP A 4WAY B 4WAY A COMP B HYMID FAN OUT FAN IN Features of Controller Service Manual 25 Features of Controller 3 Feature of Remote Controller PCB ASS Y 890 J ton ASOD
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