LG RAD-243A User's Manual
Contents
1. Room Air Conditioner Replacement Parts List R Service Parts ee EN DESCRIPTION id REMARK G1805RY6 130410 BASE ASSEMBLY SINGLE 3041A30001H R 130910 CABINET ASSEMBLY SINGLE 3091AR6056P R 135312 GRILLE ASSEMBLY FRONT SINGLE 3531A11002B R 135303 GRILLE INLET 3530A10189A R 135500 COVER ASSEMBLY CONTROL SINGLE 3551A30015A R 146812 MOTOR ASSEMBLY SYNC 2H01102J R 147581 1 LOUVER HORIZONTAL 5990A20032A R 147581 2 LOUVER HORIZONTAL 5990A20033A R 147582 LOUVER VERTICAL R 148000 BRACE 4800AR7271A R 149980 SHROUD 4998AR1597B R 152302 FILTER ASSY A C 5231AR6159A R 237200 PANEL CONTROL 3720AR6163A R 238310 ESCUTCHEON 3831A20060E R 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20613P R 263230 THERMISTOR ASSEMBLY 6323A20003D R 264110 POWER CORD ASSEMBLY 6411A20056P R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20034S R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20611A R 268714 PWB PCB ASSEMBLY MAIN AC 6871A10193J R 346811 MOTOR ASSEMBLY SINGLE 4681A20081T R 349001 DAMPER VENTILATION 4900AR7265A R 349480 ORIFICE 4948A20016A R 349600 MOUNT MOTOR 4960AR1596A R 352111 TUBE ASSEMBLY CONDENSER OUT 5211AR7059A R 352113 TUBE ASSEMBLY DISCHARGE SINGLE 5211A25040B R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A10247P R 352390 AIR GUIDE ASSEMBLY2. avo ele b wv a204 HL3dld m WOtid33 Di am veo Hi WoOH p DC 310950 Service Manual 22 Schematic Diagram Wiring Diagram e MODEL WG1805RY6 WG2405RY6 POWER INPUT WH BL N BK BR Ribbed N Plain GN THERMISTOR DISPLAY P W B ASM MAIN P W B ASM RY COMP 3 TRANS ONY FORMER FUSE 250V T2A 115V T2A 3854AR2330P WIRING DIAGRAM 23 Hoom Air Conditioner Schematic Diagram Components Loc Main P W B Assembly PWB ASM P NO 6871A20195 J02 TIMER SW2 D fest TEMP DOWN SWS PWB 6870 90070 1 0161 AUTO SWI 58 00000000 0 Service Manual 24 Troubleshooting Guide Troubleshooting Guide CONDENSER COIL H CAPILLARY TUBE MOTOR COMPRESSOR
3. 22 Components Latom d oot ceti Chua Ne att a t 23 Troubleshooting Gude 2 iie trae e van 24 System 24 29 QUIG reeter Me ni God me e itas 25 Room Air Conditioner Voltage Limits o 31 Exploded VIEW L ud teen ine ur DL Eu EUM I D anh utet as 34 Replacement Pars go de Ee acude ida 36 2 Hoom Air Conditioner Safety Precautions E Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed 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 This symbol indicates the possibility of injury or damage to property only Meanings of symbols used in this manual are as shown below Q Be sure not to do Be sure to follow the instruction AWARNING Installation Do not use damaged power cord plugs or a Always use the power plug and socket with loose socket the ground terminal There is risk of fire or electric shock There is risk of electric shock Service Manual 3 Safety Precaut
4. Figure 25 8 Remove the cabinet Refer to section 18 Discharge the refrigerant system using Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system Disconnect the 3 leads from the compressor After purging the unit completely unbrace the suc tion and discharge tubes at the compressor con nections 5 Remove the 3 nuts and the 3 washers which fas ten the compressor Remove the compressor See Figure 26 Re instill the components by referring to the removal procedure above Figure 26 17 Room Air Conditioner Disassembly 9 Capacitor 1 Remove the control box Refer to section 19 2 Remove the knobs and the screw that fasten control panel from control box 3 Remove the screw that located in the front Open the bottom side of control box 5 Remove the screw and the clamp that fastens the capacitor 6 Disconnect all the leads of capacitor terminals 7 Re install the components by referring to the removal procedure above See Figure 27 A Figure 27 10 Power Cord Remove the control box Refer to section 19 2 Open the control box Refer to section 25 3 Disconnect the grounding screw from the control box 4 Disconnect the 2 receptacles 5 Remove a screw which fastens t
5. 5210A2108 C R 37 Hoom Air Conditioner Replacement Parts List GE EE 130910 CABINETASSY SINGLE 3091AR6056P R 135312 GrilleASSY Front SINGLE AEB30969401 R 135314 GrilleASSY Inlet_ 3530AR1604A R 135510 COVER CONTROL INDOOR 3550AR7046D R 146812 Motor Assembly SYNC 2H01102 R 147581 1 LOUVERHORIZONTAL 4758AR7264A R 147581 2 LOUVERHORIZONTAL 4758 7278 R 147582 LOUVERVERTICAL 4758 6157 R 148000 BRACE 4800ARZ2Z4A R 149980 SHROUD 4998AR1597B R 159830 5 5231AR6159A R 137215 PANELCONTROL 3720AR6163A R 238310 ESCUTCHEON 3831A2002L R 249950 CONTROL BOXASSEMBLY SINGLE ABQ32895801 R 567480 Thermistor ASSEMBLY 63234200035 R 264110 POWER CORD ASSEMBLY 6411A200566Q R 267110 REMOTE CONTROLLER 6711A20035A R 268711 1 PWB PCB ASSEMBLY DISPLAY 6871A20611A R 2687112 PWB PCB ASSEMBLY MAIN 6871A101932N R 346811 MOTORASSEMBLY SINGLE 4681A20081W R 349001 DAMPER VENTILAYION 4900AR7265A R 349480 ORIFICE 4948A20016A R 349600 MOUNTLMOTOR 4960AR1596A R 552113 TUBE ASSEMBLY CONDENSER OUT S211AR7059E R 352113 TUBE ASSEMBLY DISCHARGER SINGLE 5211421526 R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A10094P R 749750 AIRGUIDEASSEMB
6. than the front about 10 15mm This will help force con densed water to the outside 5 Install the unit from the bottom about 75 150cm above the floor level The setting conditions must be checked prior to initial starting The following items are especially important checking points when the installation is finished 1 Grounding wire Green or Green and Yellow is provided in the power cord The green wire must be grounded 2 Connect to a single outlet 15A circuit or 20A circuit for Electric Heater Model 3 To avoid vibration or noise make sure the air conditioner is installed securely 4 Avoid placing furniture or draperies in front of the air inlet and outlet j Hang Push In humid weather excess water may cause the BASE PAN to overflow To drain i the water remove the DRAIN CAP and secure the DRAIN PIPE to the rear hole of f the BASE PAN Press the drain pipe into the hole by pushing down and away from Hm pipe the fins to avoid injury Drain cap Optional 1 Install the drain pan over the corner of the cabinet where you removed the CABINET d plug with 4 or 2 screws 2 Connect the drain hose to the outlet located at the bottom of the drain pan gt Fig 1 You can purchase the drain hose or tubing locally to satisfy your particular BRAN DRAIN HOSE needs Drain hose is not supplied 3 Select the most appropriate connection from among the following figures considering the hole of the
7. A 1 before venting the Freon Leave the valve in place after servicing the system 2 After discharging the unit completely remove the desired component and unbraze the pinch off tubes 3 Braze service valves into the pinch off tube ports leaving the valves open 4 Braze the pinch off tubes with Service valves 5 Evacuate as follows 1 Connect the vacuum pump as illustrated figure 33A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclockwise and leave the valves open The vacuum pump is now pulling through valves A and B up to valve C by means of the manifold and entire system CAUTION If high vacuum equip ment is used just crack valves A and B for a few minutes then open slowly with the two full turns counterclockwise This will keep oil from foaming and being drawn into the vacuum pump 3 Operate the vacuum pump vaccum for 20 to 30 minutes until 600 microns of vaccum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pressure would indi cate a possible leak or moisture remaining in the system With valves A and B closed stop the vac uum pump 4 Remove the hose from the vacuum pump and place it on the charging cylinder See figure 33B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 6 Recharge as follows 1 Refrigeration cycle systems are charged from the Hi
8. BLOWER EVAPORATOR COIL Figure 34 is a brief description of the important components and their function in what is called the refrigeration system This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET COMPLETE LIQUID See VAPOR HOT BOIL OFF POINT DISCHARGED COOLED AIR AIR ROOM AIR HEAT LOAD lt 7 ke Be A 1 Bru OUTSIDE COOLING AIR FOR REFRIGERANT MOTOR PASS THROUGH COMPRESSOR LIQUID PRESSURE DROP LIQUID OUTLET PRESSURE VAPOR REFRIGERANT Low PRESSURE VAPOR LIQUID REFRIGERANT CAPILLARY TUBE lt Figure 34 25 Room Air Conditioner Troubleshooting Guide In general possible trouble is classified in two kinds The one is called Starting Failure which is caused from an electrical defect and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application Ineffective Cooling Check cold air circulation Check outdoor coil for smooth flow heat exchanger amp the fan operation Unit runs but poor cooling Check heat load increase Dirty indoor coil He
9. from the air guide carefully Remove the clamp which secures the blower with plier See Fig 21 Remove the blower with plier or your hand without touching blades See Fig 22 7 Re install the components by referring to the removal procedure above o 6 Fan Remove the cabinet Refer to section 18 Remove the brace and shroud cover Refer to section 20 Remove the 5 screws which fasten the condenser Move the condenser sideways carefully Remove the clamp which secures the fan Remove the fan See Figure 23 Re install the components by referring to the removal procedure above N NOOR Disassembly Figure 21 Figure 22 Figure 23 Service Manual 16 Disassembly 6 Shroud 1 Remove the fan Refer to section 21 2 Remove the screw that fastens the shroud 3 Remove the shroud See Figure 24 TET 0777777777 4 Re install the component by referring the E p removal procedure above lt lt Figure 24 Electrical Par 7 Motor Remove the cabinet Refer to section 18 Remove the cover control and disconnect a wire housing in control box Refer to section 19 Remove the blower Refer to section 21 Remove the fan Refer to section 22 Remove the 4 screws which fasten the motor See Figure 25 Remove the motor Re install the components by referring to the removal procedure above N
10. front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Fig 15 11 Lift the inlet grille and secure it with a screw Type A through the front grille See Fig 15 12 Window installation of room air conditioner is now completed See ELECTRICAL DATA for attaching power cord to electrical outlet Installation Screw Type C Figure 11 Power Cord Screw Type A Figure 12 Figure 13 Window locking bracket Figure 14 Service Manual 12 Operation Operation Designed for COOLING ONLY Powerful and whispering cooling Slide in and slide out chassis for the simple instal lation and service Side air intake side cooled air discharge Control Loca 1 Cooling Only Model VENTILATION The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions When a fresh air is necessary in the room set the ventilation lever OPEN position The damper is opened and room air is exhausted Before using the ventilation feature make the lever as shown First pull down part to horizontal line with part B THERMOSTAT Thermostat will automatically control the temperature of the room Select a higher number for a cooler tem perature in the room The temperature is selected by positioning the
11. knob to the desired position The 5 or 6 position is a normal setting for average conditions OPERATION OFF Turns the air conditioner off MED FAN _ Permits the medium fan speed operation without cooling LOW FAN Permits the low fan speed operation without cooling HIGH COOL Permits cooling with the high fan speed operation MED COOL Permits cooling with the medium fan speed operation LOW COOL Permits cooling with the low fan speed operation AUTO SWING ON Air swing is operated while OPERATION knob is set to the COOL position OFF Stops the operation of air swing 13 Hoom Air Conditioner Built in adjustable THERMOSTAT Washable one touch filter Compact size Reliable and efficient rotary compressor P CLOSE VENT OPEN Thermostat Auto Swing Operation Low Cool Operation 2 Cooling Only Model with Remote Control and Touch Type DISPLAY REMOTE CONTROL WG2405RY6 WG2405RY6 WG2405RY6 WG2405RY6 DRY ENSRGY SAVER d N 3 FAN AUTO 1 SPEED Y a SwiNG ON OFF TEMPERATURE dus OT S72 PRECAUTION The Remote Control unit will not function properly if bright light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner POWER BUTTON Operation starts when this button is pressed and stops when
12. not run Thermostat Check the position of knob If not at the coldest set but fan motor runs ting advance the knob to this setting and restart unit Check continuity of the thermostat Replace ther mostat if circuit is open Thermistor Check the TEMP control If not at the lowest num ber set TEMP control to this setting and restart the unit Check the continuity of the thermistor Replace the thermistor if the circuit is open Capacitor Discharge capacitor before servicing Check the capacitor Replace if not within 10 of manufacturers rat ing Replace if shorted open or damaged Compressor Check the compressor for open circuit or ground H open or grounded replace the compressor Overload Check the compressor overload if externally mounted Replace if open If the compressor tem perature is high remove the overload cool it and retest Compressor cycles on overload Voltage Check the voltage If not within limits call an electrician Overload Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Compressor cycles on overload Fan motor If not running determine the cause Replace if required Condenser air flow restric tion Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vacuum cleaner do not damage fins or brush Clean
13. unit to fit drain pan to your own unit Service Manual 8 Installation All supporting parts should be secured to firm wood masonry or metal SCH T 26 to 41 1 This unit is designed for installation in standard dou ble hung windows with actual opening widths from 26 to 41 The top and bottom window sashes must open suffi ciently to allow a clear vertical opening of 18 from the bottom of the upper sash to the window stool 2 The stool offset height between the stool and sill must be less than 1 1 4 18 min Stool pete Toes Offset Less than 1 1 4 Sill 26 min Without frame curtain Interior wall weer Exterior Foam strip Foam PE Plain Back Adhesive Backed Foam PE Adhesive Backed Left frame curtain m Drain joint pipe Frame guide 2 gt Window lockin bracket Si Right frame curtain Sill bracket 2 Support bracket 2 14 7 5 D 2 Carriage Bolt 2 Lock Nut 4 T H i F 9 Room Air Conditioner Installation Suggested Tool R PREPARATION OF CHASSIS 1 Remove the screws which fasten the cabinet at both sides and at the back Shipping screws 2 Slide the unit out from the cabinet by gripping the base pan handle and pulling forw
14. 2 20001 R 268711 2 CLAMP SPRING 6871410193 R W52106 1 TUBE EVAPORATOR 52104301440 R W52106 2 TUBE EVAPORATOR 5210430144 R 135500 COVER 3550AR6173A R W48602 CLAMPSPRINPG 3H23C R 554030 CONDENSERASSEMBLY FIRST 5403A2062E R 552111 TUBEBENDING 52104249565 R 346811 MOTORAC 461A08W R 135510 COVER ASSEMBLY CONTROL SINGLE 3551A30015A R 749740 GUIDE 20035 R 731273 Install Part Assembly Single 3427AR3403U R LOCATION A EMAR 130410 130910 135312 135303 135515 146812 147581 1 147581 2 147582 148000 14998 15983 23720 23831 249950 567480 0 k sss 149980 SHROUD 237200 PANEL CONTROL 238310 ESCUTCHEON 267110 268711 1 268711 2 346811 349001 349480 349600 352111 352113 35211A Replacement Parts List PART NO LOCATION NO DESCRIPTION Remark RAD 183A BASE ASSEMBLY SINCE 130910 CABINET ASSY SINGLE EC 135312 GRILLE ASSY FRONT SINGLE AEB30969401 R 135303 GRILLE ASSY INLET 3530AR1604A R 13550 COVER CONTROL INDOOR 355143005 R MOTOR ASSEMBLY SYNC mum R 147581 1 LOUVER HORIZONTAL IL zapen R 147581 2 LOUVER HORIZONTAL 4758AR7ZZ78A R 147582 LOUVER VERTICAL 4758ARGISTA R 14900 480AR77A R 1499
15. 4 P d N MI a L Wi 7 WX LI y P 4 LG Room Air Conditioner WW P 25 1 MODEL WG1805RY6 RAD 183A website http www lgservice cc LG NIT READ THE SAFETY ANUAL D SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions C a 3 E 5 Symbols Used in this Ei 5 Outside Dimensions SE ete ees E eee 5 Product Specifications siene eg WEEK 6 Installatlon Tu aR E scu 7 Select the B est LoGatfi fr au geesde KEEN EEN 7 Installation CHECK e 7 How to Secure the Drain ege eege 7 Window EIERE ageet 8 Installation KIS eror qi c E 8 Suggested Tool EE 9 ax doe tees Ee ede 10 cup WE EE 12 EE eegener 12 Control Locations Function of Controls De Sa Sr suh 12 Disassembly EE 14 14 Air us ut dope docu 15 Electrical PariS Etgen tee rette 16 Refrigerating KO O teat cect 18 Schematic E 21 Electronic Control DeviGG cums 21 Wiring Diagrarm u su
16. 5239A20001W R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20248B R 359012 FAN ASSEMBLY TURBO 5900A20027A R 552101 TUBE CAPILLARY 5210A24956H R 554031 CONDENSER ASSEMBLY BENT 5403A20062F R 554160 COMPRESSOR SET 2520UCBJ002 R 559010 FAN ASSEMBLY AXIAL 5900AR1508B R W0CZZ CAPACITOR DRAWING 6120AR2194F R W48602 CLAMP SPRING 3H02932C R W52106 1 TUBE EVAPORATOR 5210A21083B R W52106 2 TUBE EVAPORATOR 5210A21083C R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 36 Room Air Conditioner Replacement Parts List PART NO DESCRIPTION WG2405RY7 BASE ASSEMBLY SINGLE 3041A30001F CABINET ASSEMBLY SINGLE GRILLE ASSEMBLY FRONT SINGLE GRILLE INLET COVER ASSEMBLY CONTROLINDOOR MOTOR ASSEMBLY SYNC LOUVER HORIZONTAL LOUVER HORIZONTAL LOUVER VERTICAL BRACE FILTER ASSEMBLY A C PANEL CONTROL ESCUTCHEON CONTROL BOX ASSEMBLY SINGLE THERMISTOR POWER CORD ASSEMBLY REMOTE CONTROLLER ASSY PWB PCB ASSY DISPLY PWB PCB ASSY MAIN MOTOR ASSEMBLY SINGLE DAMPER VENTILATION ORIFICE MOUNT MOTOR TUBE ASSEMBLY CONDENSER OUT TUBE ASSEMBLY DISCHARGE SINGLE TUBE ASSEMBLY SUCTION SINGLE 352380 AIR GUIDE ASSEMBLY 354210 EVAPORATOR ASSEMBLY FIRST 359012 FANTURBO 50A02A R 554031 CONDENSER ASSEMBLY BEND 5403A2062F R 554160 COMPRESSOR 54164200458 R 559011 FAN ASSEMBLY AXIAL 5900AR150088 R WOCZZ CAPACITOR DRAWING 0 2
17. 80 SHROUD 4998ARIS7B R 52302 FILTERASSYA C 52314861594 R 1371200 PANEL CONTROL 370AR60A R 230310 38314200 R 249950 CONTROL BOX ASSEMBLY SINGLE 4995A20613Y R 263230 THERMSTOR ASSEMBLY 632342000380 R 264110 POWER CORD ASSEMBLY 6411A20560P 267110 REMOTE CONTROLLER 67142003554 R 268712 PWB PCB ASSEMBLY DI SPLAY 6871A206HA R mn ASSEMBLY MUN R 340811 MOTOR ASSEMBLY SINGLE 4681A20081T R DAMPER VENTILAYION 4900AR7265A R 4948420016 R 4960ARIS9A R 351111 TUBE ASSEMBLY CONDENSER OUT S2HIAR7OS9A R 35213 TUBE ASSEMBLY DISCHARGER SINGLE 5211A25040B R 35211A TUBE ASSEMBLY SUCTION SINGLE 5211A10247P R 351390 AIRGUIDEASSEMBLY 5239A20001W R 354210 EVAPORATOR ASSEMBLY FIRST 54214202486 R 359012 5900A20007A R 552101 TUBE CAPILLARY 5210A33036P_ R 554031 CONDENSER ASSEMBLY BENT 5403420068 R COMPRESSOR 252006802 R 559010 FAN ASSEMBLY AXIAL S900ARISOBB R WOCZZ CAPACITOR 6I20AR2ISdF R W48600 CLAMPSPRING 3H092C R ws2106 1 52104210838 R Ws2106 2 TUBEEVAPORATOR
18. H PRESSURE SIDE MANIFOLD GAUGE B CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR LOW PRESSURE SIDE COMPRESSOR EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 33A Pulling Vacuum Figure 33B Charging 21 Room Air Conditioner Schematic Diagram Schematic Diagram Electronic m D EN euer NS 001 10 asod azoa azoo oan ES dSIG NO dSIG NO raviv diVOO AH E o EE cond AS wor A 143938 88 auge Hamoa Mem mon wem 91001 Hallan HIV ot H3AVS 3 Mei 1v3H AHa E 9 2 8 6 1uvlS3u v 1508430 SNIWSN HO1lOVdvVO Jiu 4100 4200 7009 AYIA ams SNS Te 5 2900 29358 9935 EES OUEST OTB Tiwos IESSE es op pueos pubic 755 vas ke no am ess es U oms S T E 77 ONAS NO ween M M 3500 dn r Devious Wool i m sz MOTAN een dNOO AH a
19. LY 5239A20001W R 354210 EVAPORATORASSEMBLY FIRST 5421A20248F R 359012 FANTURBO 5900A2027A R 552102 TubeBending 5210A24956 R 554031 CONDENSER ASSEMBLY BEND 5403420062 R 554160 COMPRESSOR 54164200458 R 559011 FANASSEMBLY AXIAL S900AR1508B R WOCZZ CAPACITOR OCF1042859A R W48602 CLAMP SPRING 3 02932 R 325115 1 TUBE EVAPORATOR 5210A30144U R 325115 2 TUBEEVAPORATOR 5210A30144V R 550140 ISOLATOR COMP 4022A3008A R 135500 COVER Cs 3550AR6173A R 135515 COVER ASSEMBLY TOP INDOOR 3551A30003A R LG JULY 2007 P No 3828A20887A Printed in China
20. MS WG1805RY6 WG2405RY7 POWER SUPPLY 10 208 230V 60Hz COOLING CAPACITY 17 500 18 000 23 500 23 800 INPUT 1 800 1 850 2 760 2 800 RUNNING CURRENT 9 7 8 5 REFRIGERANT R 22 CHARGE g 7209 25 40z 8309 29 3oz OPERATING INDOOR C 27 DB 19 WB TEMPERATURE OUTDOOR C 35 DB 24 WB EVAPORATOR 2 ROW 15 STACKS LOUVERED FIN TYP CONDENSER 2 ROW 19 STACKS LOUVERED FIN TYPE L BENDING TYPE FAN INDOOR TURBO FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL WIRELESS REMOCN ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION SLIDE IN OUT CHASSIS PROTECTOR COMPRESSOR INTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 3 WIRE WITH GROUNDING CORD CONNECTED TYPE ATTATCHMENT PLUG OPTION DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 130 60 147 7 67 OUTSIDE DIMENSION inch 26 x 16 27 32 x 26 9 16 26 x16 27 32 x 30 5 16 WxHxD mm 660 x 428 x 675 660 x 428 x 675 6 Room Air Conditioner Specfications E Product Specifications Table 1 MODELS ITEMS RAD 183A POWER SUPPLY 10 208 230V 60Hz COOLING CAPACITY 17 500 18 000 INPUT 1 800 1 850 RUNNING CURRENT 9 7 REFRIGERANT R 22 CHARGE g 7209 25 402 OPERATI
21. NG INDOOR C 27 DB 19 WB TEMPERATURE OUTDOOR C 35 DB 24 WB EVAPORATOR 2 ROW 15 STACKS LOUVERED FIN TYP CONDENSER 2 ROW 19 STACKS LOUVERED FIN TYPE L BENDING TYPE FAN INDOOR TURBO FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL WIRELESS REMOCN ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION SLIDE IN OUT CHASSIS PROTECTOR COMPRESSOR INTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 3 WIRE WITH GROUNDING CORD CONNECTED TYPE ATTATCHMENT PLUG OPTION DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 130 60 OUTSIDE DIMENSION inch 26 x 16 27 32 x 26 9 16 WxHxD mm 660 x 428 x 675 7 Room Air Conditioner Specfications E Product Specifications Table 1 MODELS ITEMS RAD 243A POWER SUPPLY 10 208 230V 60Hz COOLING CAPACITY 23 500 23 000 INPUT 2 760 2 710 RUNNING CURRENT 8 5 REFRIGERANT R 22 CHARGE g 835g 29 3oz OPERATING INDOOR C 27 DB 19 WB TEMPERATURE OUTDOOR C 35 DB 24 WB EVAPORATOR 2 ROW 15 STACKS LOUVERED FIN TYP CONDENSER 2 ROW 19 STACKS LOUVERED FIN TYPE L BENDING TYPE FAN INDOOR TURBO FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER
22. RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL WIRELESS REMOCN ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL VERTICAL LOUVER RIGHT amp LEFT HORIZONTAL LOUVER UP amp DOWN CONSTRUCTION SLIDE IN OUT CHASSIS PROTECTOR COMPRESSOR INTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR POWER CORD 3 WIRE WITH GROUNDING CORD CONNECTED TYPE ATTATCHMENT PLUG OPTION DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT Ibs kg 130 60 OUTSIDE DIMENSION inch 26 x 16 27 32 x 26 9 16 WxHxD mm 660 x 428 x 675 7 Room Air Conditioner Installation Installation Select the Besl 1 To prevent vibration and noise make sure the unit is installed securely and firmly 2 Install the unit where the sunlight does not shine directly on the unit 3 The outside of the cabinet must extend outward for at least 30cm and there should be no obstacles such as a fence or wall within 50cm from the back of the cabinet because it will prevent heat radiation of the condenser Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner AWNING FENCE COOLED AIR HEAT RADIATION OUT 10 15mm CAUTION All side louvers of the cabinet Over 50cm must remain exposed to the outside of the structure Figure 1 4 Install the unit a little slanted so the back is slightly lower
23. ard while bracing the cabinet 3 Cut the window sash seal to the proper length Peel off the backing and attach the Foam PE to the underside of the window sash UUTTA Z Figure 3 4 Remove the backing from Foam PE with 3 holes and attach it to the bottom of the Top retainer bar Top retainer bar 5 Attach the Top retainer bar on the top of the cabinet with 3 screws Type A E Foam PE Figure 4 6 Insert the Frame guides into the bottom of the cabi net 7 Insert the Frame Curtain into the Top retainer bar and Frame guides 8 Fasten the curtains to the unit with 10 screws Type A at both sides Screw Type A Frame guide Figure 5 Service Manual 10 Installation 1 Open the window Mark a line on the center of the window stool between the side window stop mold Sill ings Bracket Loosely attach the sill bracket to the support bracket using the carriage bolt and the lock nut GEES olt M Screw 2 Attach the sill bracket to the window sill using the screws Type B Carefully place the cabinet on the window stool and align the center mark on the bottom front with the Cabinet center line marked window stool Track hole 2 Support Bracket 9 Lock nut Figure 6 Machine screw Type D and lock nut Outer edge of wie si Support Bracket Carriage bol and lock nut 3 Using the M screw and the lock nut attach the sup port bracket to the cabinet track hole Use
24. at exchanger Check gas leakage Unexpected residue Overloaded circuit Malfunction of fan Repair gas leak Clogged of air filter Check inside gas Replacement of unit if the pressure unit is beyond repair Obstruction at air outlet Adjusting of refrigerant charged Stop of auto air swing Malfunction of compressor Correct above trouble Check clogging in refrigera Replacement of tion circuit compressor Satisfactory operation with Repair clogging in refrigera temperature difference of tion circuit inlet amp outlet air 44 50 F 7 10 C Service Manual 26 Troubleshooting Guide Fails to Start Check circuit breaker and fuse Check of power source Check of control switch setting Gas leakage of feeler bulb of thermostat Check of control switch Fan only fails to start Improper wiring Compressor only fails to start Drop of power voltage lt Improper thermostat setting Defect of fan motor Defect of compressor capacitor capacitor Loose terminal connection Irregular motor resistance Q Irregular motor insulation Q Replacement of fan motor Regular but fails to start Capacitor check lt Improper wiring Replacement lt Irregular motor resistance Irregular motor insulation O Replacement of compressor locking of rotor metal Replacement of compressor Motor damag
25. e Receiver Ass y Possible Trouble 7 It displays abnormally on display PCB Ass y NO Is the IC01G all right Exchange IC01G NO Connect connector Is the connection of NO CN DISP all right to CN DISP exaclly yes Does the NO Q01G Q04G operate normally Exchange on main PCB Ass y Q01G Q04G yes Exchange the display PCB Ass 31 Room Air Conditioner Troubleshooting Guide Room Air C NAME PLATE RATING MINIMUM MAXIMUM 208 230 10 187V 253V 115 10 104V 126V COMPLAINT CAUSE REMEDY Fan motor will not run No power Check voltage at outlet Correct if necessary Power supply cord Check voltage to rotary switch If none check power supply cord Replace cord if circuit is open Rotary switch Check switch continuity Refer to wiring diagram for terminal identification Replace switch if defective Wire disconnected or con nection loose Connect wire Refer to wiring diagram for terminal identification Repair or replace loose terminal Capacitor Discharge capacitor before testing Test capacitor Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud or blower wheel hitting scroll Realign assembly Units using slinger ring for condenser fan must have 1 4 to 5 16 i
26. ed 27 Room Air Conditioner Electrical Parts Troubleshooting Guide Possible Trouble 1 The unit does not operate Is the Trans output power AC 220V Troubleshooting Guide NO Check the Fuse Check the wiring diagram yES Is the Trans output power about AC 14V Is shorted the Trans output Check the Main PCB pattern Exchange the Trans NO Is output Voltage of ICO1D DC 12V Exchange 0020 0050 e Exchange ICO1D Is output Voltage of ICO2D HE gt Exchange IC02D DC 5V ves NO Is the reset circuit all right The No 16 of Exchange IC01A C02A Micom is 5V Is the connection between NO Main and Display Connect connector exactly all right Es NO Is the voltage No 20 of Micom e Check the PCB pattern Exchange Main PCB Ass y Service Manual 28 Troubleshooting Guide Possible Trouble 2 The compressor does not operate Is setting Temp set lower than Room Temp 0 5 C Is the voltage No 10 of ICO1M OV Check the RY COMP Check the wiring Diagram Is the wire connection of RY COMP all right NO NO Is the voltage NO 7 of ICO1M DC 5V Exchange ICO1M Select the setting Temp t
27. gh side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in figure 33B With valve C open discharge the hose at the mani fold connection 3 Open valve A and allow the proper charge to enter the system Valve B is still closed 4 If more charge is required the high side will not take it Close valve A 5 With the unit running open valve B and add the balance of the charge a Do not add the liquid refrigerant to the Low side b Watch the Low side gauge allow pressure to rise to 30 Ibs 0 2Mp c Turn off valve B and allow pressure to drop d Repeat steps b and c until the balance of the charge is in the system 6 When satisfied the unit is operating correctly use the pinch off tool with the unit still running and clamp on to the pinch off tube Using a tube cutter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos brazing rod and braze pinch off tube closed Turn off the unit allow it to set for a while and then test the leakage of the pinch off connection Service Manual 20 Disassembly Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pin off tool capable of making a leak proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve CONDENSER COMPOUND EE HIG
28. he clip cord See Figure 28 6 Remove the power cord 7 Re install the component by referring to the above removal procedure above Use only one ground marked hole for ground connection 8 If the supply cord of this appliance is damaged it must be replaced by the special cord The special cord means the cord that has the same specification marked on the supply cord attached at the unit ch 11 Thermistor 1 Remove the control box Refer to section 19 2 Unfold the control box Refer to section 25 3 Disconnect the themistor terminals from main P W B Assembly 4 Remove the thermistor 6 Re install the components by refereing to the above removal procedure above See Figure 29 12 Synchronous Motor 1 Remove the control box Refer to section 19 2 Unfold the control box Refer to section 25 3 Remove the crankshaft 4 Disconnect all the leads of the synchronous motor 5 Remove the 2 screws which fasten the syn chronous motor See Figure 30 6 Re install the components by referring to the above removal procedure above Figure 30 Service Manual 18 Disassembly CAUTION Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Freon Leave the valve in place after servicing the system 13 Condenser 1 Remove the cabinet Refer to section 18 2 Re
29. ions Do not modify or extend the power cord Do not install remove or re install the unit by yourself There is risk or fire or electric shock There is risk of fire electric shock explosion or injury Be cautious when unpacking and installing Do not store or use flammable gas or com the product bustibles near the air conditioner Sharp edges could cause injury Be especially careful There is risk of fire or failure of product of the case edges and the fins on the condenser and evaporator Be sure the installation area does not deterio rate with age If the base collapses the air conditioner could fall with it causing property damage product failure and per sonal injury 4 Room Air Conditioner Dimensions Dimensions A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the A air conditioner This symbol indicates special notes ER EN 90900909 Model 18K Btu 24K Btu Dimension W mm inch 660 26 660 26 H mm inch 428 16 27 20 428 16 27 32 D mm inch 675 26 9 1s 675 269 18 Service Manual 5 Specfications E Product Specifications Table 1 MODELS ITE
30. move the 4 screws that fasten the brace Refer to section 20 3 Remove the 5 screws that fasten the condenser and shroud 4 After discharging the refrigerant completely unbraze the interconnecting tube at the condenser connections 5 Remove the condenser 6 Re install the component by referring to notes See Figure 31 14 evaporator 1 Remove the cabinet Refer to section 18 2 Remove the 2 screws that fasten the evaporator 3 Move the evaporator sideways carefully Refer to section 20 4 After discharging the refrigerant completely unbraze the interconnecting tube at the evaporator connections 5 Remove the evaporator 6 Re install the component by referring to notes See Figure 32 15 Capillary Tube 1 Remove the cabinet Refer to section 18 2 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube See caution above 3 Remove the capillary tube 4 Re install the component by referring to notes 19 Room Air Conditioner COTE EE XG Figure 31 Disassembly NOTICE Replacement of the refrigeration cycle 1 When replacing the refrigeration cycle be sure to Discharge the refrigerant system using a Freon recovery System If there is no valve to attach the recovery system install one such as a WATCO
31. nch clearance to the base If it hits the base shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Fan motor runs intermittently Revolves on overload Check voltage If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor Fan motor noise Fan If cracked out of balance or partially missing replace it Turbo If cracked out of balance or partially missing replace it Loose clamper Tighten it Worn bearings If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace motor Compressor will not run but fan motor runs Voltage Check voltage If not within limits call an electrician Wiring Check the wire connections if loose repair or replace the terminal If wires are off refer to wiring diagram for identification and replace Check wire locations If not per wiring diagram correct Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if circuit is open Service Manual 32 Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor will
32. o lower Number Is the Unit for 3 minutes delay Possible Trouble 3 The compressor always operate Wait 3 Minutes Exchange MAIN PCB Connect LEAD Wire to Check the RY COMP 29 Hoom Air Conditioner gt RY COMP again Troubleshooting Guide Possible Trouble 4 FAN does not operate NO Is the voltage NO 1 or 4 of ICO1M DC 5V gt Exchange IC01M Is the voltage NO 13 or 16 NO Exchange ICO1M of ICO1M 0V ves Check the RY Hi or RY Lo Check the wiring diagram Possible Trouble 5 Auto Swing does not operate Is the voltage NO 6 NO gt Exchange Micom of ICO1M DC 5V ves Is the voltage NO 11 of ICO1M OV NO gt Exchange COM Check the RY SYNC Check the connectionn of CN SYNC Check the PCB pattern Service Manual 30 Troubleshooting Guide Possible Trouble6 Remote controller does not operate Is the voltage of Battery NO about over 2 3V Exchange the battery pes s the voltage No 16 of CN DISP on Main PCB NO Check the PCB pattern Assy DC 5V NO Connect connector to CN DISP exactly Is the connection of CN DISP all right Y Exchang
33. or the area to be cooled Excessive noise Turbo or fan Check the set screw or clamp If loose or missing correct If the blower or fan is hitting air guide rearrange the air handling parts Copper tubing Remove the cabinet and carefully rearrange tubing not to contact cabinet compressor shroud and bar rier Auto air swing fails Rotary switch Set the knob to HIGH COOL or LOW COOL while rocker switch is ON Wiring Check terminals If loose repair or replace Synchronous motor Check the synchronous motor for open circuit Service Manual 34 Exploded View Exploded View Cooling Model Room Air Conditioner Exploded View Exploded View Cooling Model
34. s that fasten the cabinet at both sides Remove the 2 screws that fasten the cabinet at back Pull the base pan forward See Figure 18 Remove the cabinet Re install the component by referring to the removal procedure above ok WwW 3 Control Box 1 Remove the front grille Refer to section 17 2 Remove the cabinet Refer to section 18 3 Remove the 2 screws that fasten the control box cover 4 Remove two housings that connect compressor wire and motor wire in the control box 5 Discharge the capacitor by placing a 20 000 ohm resistor across the capacitor terminals 6 Remove the 2 screws that fasten the control box Pull the control box forward completely 8 Re install the components by referring to the removal procedure above See Figure 19 Refer to the circuit diagram found on page 23 in this manual and on the control box Figure 18 N Figure 19 15 Room Air Conditioner Cover at the top 4 1 Remove the front grille Refer to section 17 2 Remove the cabinet Refer to section 18 3 Remove 11 screws which fasten the brace and covers 4 Remove the covers and the brace See Fig 20 5 Re install the components by referring to the removal procedure above 5 Blower 1 Remove the cover Refer to section 20 2 Remove the 3 screws which fasten the evaporator at the left side and the top side 3 Move the evaporator sideward carefully 4 Remove the orifice
35. the first track hole after the sill bracket on the outer edge of the window sill Tighten the carriage bolt and the lock nut Be sure the cabinet slants outward CAUTION Do not drill a hole in the serene bottom pan The unit is designed to bar operate with approximately 1 2 of water in bottom pan 4 Pull the bottom window sash down behind the Top retainer bar until they meet 1 Do not pull the window sash down so tightly that the movement of Frame curtain is restricted Attach the cabinet to the window stool by driving the screws Type B through the cabinet into window stool 2 The cabinet should be installed with a very slight tilt downward toward the outside 11 Room Air Conditioner Screw Type B Sill bracket Figure 7 Window stool Figure 8 Sash track Front Angle Screw Type B Figure 10 5 Pull each Frame curtain fully to each window sash track and pull the bottom window sash down behind the Top retainer bar until it meets 6 Attach each Frame curtain the window sash by using screws Type C See Fig 11 7 Slide the unit into the cabinet See Fig 12 CAUTION For security purpose rein A stall screws Type A at cabinet s sides 8 Cut the Foam strip to the proper length and insert between the upper window sash and the lower win dow sash See Fig 13 9 Attach the Window locking bracket with a screw Type C See Fig 14 10 Attach the
36. the interior base before reassembling Condenser fins damaged If condenser fins are closed over a large area on the coil surface head pressures will increase causing the compressor to overload Straighten the fins or replace the coil Compressor cycles on overload Capacitor Test capacitor Wiring Check the terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heat ing Air filter If restricted clean of replace Exhaust damper door Close if open Unit undersized Determine if the unit is properly sized for the area to be cooled Excessive noise Turbo or fan Check the set screw or clamp If loose or missing correct If the turbo or fan is hitting air guide rearrange the air handling parts Copper tubing Remove the cabinet carefully and rearrange tubing not to contact cabinet compressor shroud and barrier 33 Room Air Conditioner Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor cycles on overload Capacitor Test capacitor Wiring Check the terminals If loose repair or replace Refrigerating system Check the system for a restriction Insufficient cooling or heat ing Air filter If restricted clean of replace Exhaust damper door Close if open Unit undersized Determine if the unit is properly sized f
37. you press the button again OPERATION MODE SELECTION BUTTON Select Cooling or Fan or Dehumid mode with button Dehumid mode is not to all models ON OFF TIMER BUTTON Set the time of starting and stopping operation The timer is set by 1 hour FAN SPEED SELECTOR Select the fan speed in three steps High gt Low F1 gt Med F2 gt High F3 ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of 60 F to 86 F by 1 F ENERGY SAVER Available In some models The fan stops when the compressor stops cooling Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed AUTO SWING BUTTON Control the horizontal air direcion by air swing system In case the power comes on again after a power failure the unit runs as previous setting operation Available in some models Service Manual 14 Disassembly P Disassembly Before the following disassembly CONTROL BOX set to OFF and disconnect the power cord 1 Front Grille 1 Open the Inlet grille upward 2 Remove the screw that fastens the front grille 3 Pull the front grille from the right side 4 Remove the front grille 5 Re install the component by referring to the removal procedure above See Figure 17 Weyl Mark A of inlet grille means opening d irection 2 Cabinet 1 After disassembling the FRONT GRILLE remove the 2 screw
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