LG Room Air Conditioner
Contents
1. Service Manual 51 B01 ND 3991704 4 HOCH 20 eq Te C r _____ mer A F 3 70 999 ma S CG 01021 INI 37917101 L P uu E ER 1341 24 VA i t wee ZS La gef J gt2. 268714 2 6871A10121L PWB PCB ASSEMBLY MAIN DC 6871A20439Q 268717 6871A20363F 6871A20439P 6871A20363F 6871A20439R 6871A20363F 6871A10121L 6871A20439R 6871A20363F PWB PCB ASSEMBLY SUB 330870 3087A30004A 3087A30004A 3087 30004 3087A30004A DRAIN PAN ASSEMBLY 346810 MOTOR ASSEMBLY INDOOR TUBE ASSY TUBING 4681A20091A 5211AR7066F 35211 4681 20091 5211AR7066D 4681 20091 5211AR7066F 4681A20091A 5211AR7066F 352150 HOSE ASSEMBLY DRAIN 9201AR1222R 5251AR1222R 5251AR1222R 5251AR1222R 392380 AIR GUIDE 5238 20034 5238 20034 5421 20072 5238 20034 5421 20072 5238A20034A 354210 EVAPORATOR ASSEMBLY FIRST 5421 20072 359012 FAN TURBO 5900A00003A NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz L Gservice com 5900A00003A 5900A00003A 5421 20072 5900A00003A Service Manual 59 Replacement Parts List Indoor Unit DESCRIPTION PART No ASNHO96P L3 AS HO96P L3 ASNH126P L3 AS H126P L3 REMARKS 131410 CHASSIS ASSEMBLY 3141A20030C 3531 20277 3141 20030 3531 20277 3531 20277 3531 20277 3531 20277 3531 20277 3531A20277W 135312 GRILLE ASSEMBLY FRONT INDOOR GOGH A BLUE B WOOD D METAL M SISLEY S WHITE W 3531A20277G 3531A20147Z 3
3. Tubing connection Evaluation of the performance Operate unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake tempera ture and the discharge is more than 8 46 Cooling or Heating 24 Hoom Air Conditioner Intake temperature Discharge air amp Discharge temperature 4 For reference the gas side pressure of optimum condition is as below Cooling Outside ambient The pressure of the gas side Refrigerant TEMP service valve R 22 35 C 95 35 95 F 4 5kg cm G 56 8 71 0 P S I G 8 5 9 5kg cm G 120 135 5 1 6 If the actual pressure is higher than shown the system is most likely over charged and charge should be removed If the actual pres sure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use PUMP DOWN This is performed when the unit is to be relocated or the refrigerant circuit is serviced Pump Down means collecting all refrigerant in the outdoor unit without loss in refrigerant gas CAUTION Be sure to perform Pump Down procedure with the unit cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open the gas side service val
4. Operation Indicator On while in appliance operation off while in appliance pause Timer on off and Sleep timer Indicator On while in timer mode on off and in sleep timer mode off when timer mode is completed or canceled Defrost Indicator Off except when hot start during heating mode operation or while in defrost control Plasma Indicator On while in plasma mode off while plasma mode is canceled Auto restart n case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again Cooling Mode Operation When the intake air temperature reaches 0 5 below the setting temp the compressor and the outdoor fan stop When it reaches 0 5 C above the setting temp they start to operate again Compressor ON Temp Setting 0 5 Compressor OFF Temp gt Setting 0 5 While in compressor running operating with the airflow speed set by the remote controller While in compressor not running operating with the low airflow speed regardless of the setting Service Manual 25 Operation Healthy Dehumidification Mode When the dehumidification operation input by the remote controller is received the intak
5. DE 00 CIS d o RE 3208 CU E Aere ag 7 cb DAD SQ0 N3 516 lt Wy 021 YYY o Pon HAQLO NSI o 1 WAR aio an un fon ta yuri N ASY Did BNS fod ED L 4 1 3 Geile t aDlDA Nldd3lS Electric Diagram LINN 009110 OL 3854 20374 Outdoor Unit AS H096PB D ML2 AS H126PA B D M SL2 AS H126P L3 AS H096P L3 REVERSING BR BL GN YL BKRD YL TERMINAL BLOCK BR BL GNYL BK RD s TO INDOOR UNIT OUTDOOR WIRING DIAGRAM 3854A30077D 52 Hoom Air Conditioner CN ACDC1 SAFETY S CN ACDC2 j Kal 1 I or a Q gt N cc PCB ASM DISPLAY PCB 4 2 AS H076PB D ML2 AS H076P L3 BRI BLIGNYLI BK 1 I I I I I I I L JL TO INDOOR UNIT OUTDOOR WIRING DIAGRAM 3854A30077V Diagram MAIN P W B ASSEMBLY PART HEAT PUMP MODEL T BLOCK ot lt 255 z E 5050 CN ACDO o H a 2 cu 5272 2050 n SMPS se 2 2 1090 0070
6. NN ANY N AC P Top Cover Pipe Cover Turbo Fan top cover and the air guide Pull the evaporator out from the chassis carefully Remove the securing bolt from the motor shaft Remove 4 screws securing motor mount from the chassis and lift up the motor mount and the bracket Remove the securing screws from the chassis Pull the fan out from the motor shaft Remove 4 screws securing the evaporator Pull the pipe cover 3 To remove the Evaporator 4 Before removing the Turbo Fan 5 To remove the Motor 36 Hoom Air Conditioner Troubleshooting Guide E Troubleshooting Guide 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER COMPRESSOR GAS SIDE 2 Cooling amp Heating Models INDOOR UNIT OUTDOOR UNIT lt CHECK VALVE LIQUID SIDE Heating Model only gt lt 4 TOO 3 WAY VALVE d 0000 CAPILLARY EVAPORATOR CONDENSER i ww 7 ap 774 P gt lt TTE 37 REVERSING ACCUMU VALVE LATOR Heating Model Only COMPRESSOR COOLING HEATING gt lt lt
7. Power Source Indoor Outdoor Air Circulation Noise Level Input Heating Btu hW Running Current E E R C O P Motor Output Dimensions W x H x D Net Weight AS H096PB D ML2 AS H096P L3 Product Specifications AS H126PA B D M S WL2 AS H126P L3 9200 12000 9400 12200 1 2 1 5 10 220 240V 50Hz 2 5 0 x 568 x 137 770 x 540 x 245 6 Indoor 37 44 3 Outdoor 46 46 M 860 1200 3 8 4 9 3 85 5 3 10 95 10 92 32 2 98 Indoor 24 24 W Outdoor 25 5 25 5 5 0 x 568 x 137 770 x 540 x 245 kg AS H076PB D ML2 AS H076P L3 10 220 240 50Hz 0 5 0 2 3 4 2 3 1 4 6 35 Refrigerant 9 870 410 880 410 Airflow Direction Control Down O O 1 4 6 35 1 4 6 35 3 8 9 52 1 2 12 7 Sleeping Operation O O 3 8 9 52 O Drain Hose O O O Connecting 3 1 0mm 2 0 75mm 3 1 0 2 0 75 3 1 0mm 2 0 75 Power Cord p mm 3 1 0mm 3 1 0mm 3 1 0mm Service Manual 55 Exploded View Exploded View Indoor Unit 56 Hoom Air Conditio
8. Service Manual 37 Troubleshooting Guide 2 way Valve Liquid Side 3 way Valve Gas Side Valve cap Open position Closed position Hexagonal wrench 4mm Flare nut Flare nut Open position 0 Closed positi osed position CS To piping Service Service connection connection Sen cap To outdoor unit To outdoor unit Shaft position Shaft position Service port Shippin Closed Closed Closed PPINg with valve cap with valve cap with cap Air purging Open Closed Open Installation counter clockwise clockwise push pin or with vacumm pump Operation Open Open Closed with valve cap with valve cap with cap Closed Open Open clockwise counter clockwise connected manifold gauge Evacuation Open Open 3 Servicing Pumping down Transfering Gas charging Open Open Open Servicing with charging cylinder Pressure check Open Servicing Open Open with charging cylinder Open Gas releasing 6 Servicing Open Open with charging cylinder 38 Room Air Conditioner Pumping Down NW Liquid side Gas side close AW Purge the air Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position Remove the valve stem caps and confirm that the valve stems are in the raised position Be sure to use a hexagonal wrench to operate the valve s
9. ing length and capacity of the pump The following table shows the time required for evacuation Required time for evacuation when 30 gal h vacuum pump is used If tubing length is less than 10m if tubing length is longer than 10m 33 ft 33 ft 10 min or more 15 min or more When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacu um pump 4 Finishing the job With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve Turn the valve stem of gas side valve counter clockwise to fully open the valve Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 22 Hoom Air Conditioner Indoor unit Gas side 1 First Check the side cover assembly exactly and fix the power cord in the bottom groove of cover side left 2 Assemble connecting lead wire with controller fix the upper part o
10. 5900AR1266A 5900AR1266A 561410 COIL ASSEMBLY REVERSING VALVE 02028 6141AR3733R 6141 20017 6141 20017 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20083B 4995A20083Y 49954100927 4995 90162 WOCZZ CAPACITOR DRAWING 6120AR2194N 2H01451T 6120AR2194H Service Manual 61 Replacement Parts List Outdoor Unit 2 DESCRIPTION PART No ASUH096PUL3 ASUH126PUL3 430410 BASE ASSEMBLY OUTDOOR GRILLE DISCHARGE COVER ASSEMBLY CONTROL OUTDOOR 437210 PANEL ASSEMBLY FRONT OUTDOOR 3041 20008 3041 20008 3530A20006G 3530A20006G 3551A30023W 35514300231 R 437212 PANEL ASSEMBLY REAR OUTDOOR 3721 20027 3721 20027 3721 20026 3721 20026 447910 BARRIER ASSEMBLY OUTDOOR 4791A30002A 4791A30002A 546810 MOTOR ASSEMBLY OUTDOOR 4681 200045 4681 200045 549610 MOUNT MOTOR 4960 10002 4960 10002 550140 ISOLATOR COMP 4H00982E 552111 TUBE ASSEMBLY CAPILLARY 552116 TUBE ASSEMBLY REVERSING 552201 VALVE CHECK 5211A30331Q 5211A20117J 5211A20160E 5211A20140X 552202 VALVE REVERSING 552203 1 VALVE SERVICE 552203 2 VALVE SERVICE 5220 200010 5220 20006 554031 CONDENSER ASSEMBLY BENT 5403A20019F 5403A20019V 554160 COMPRESSOR SET 559010 FAN ASSEMBLY PROPELLER 2520UGAP2GA 2520UGHP2AA 5901A10055B 5901A10055B 561410 COIL ASSEMBLY REVERSING VALVE 3A02028Y 6141AR3733R 649950 CONTR
11. Fan Heating Sleep Timer Indicator m Timer Indicator 5 Q Timer Mode Defrost Indicator Hot start Defrost PLASMA Indicator PLASMA Mode 32 Hoom Air Conditioner 2 Cooling Model Operation Indicator Cooling Soft Dry Fan Sleep Timer Indicator Sleep Mode Timer Indicator Timer Mode Outdoor Unit Operation PLASMA Indicator PLASMA Mode 0 Operation Self diagn 515 LED EOE COMENS SVC check point Indoor room temperature once thermistor open short Indoor Thermistor Indoor pipe temperature assembly check 3sec thermistor open short Service Manual 33 Operation The controls will look like the following Controls Signal transmitter Flip up door opened 2 Operation Mode Cooling Operation AK 4 Auto Operation or Auto Changeover UF Healthy Dehumidification Operation Heating Operation xt e Cooling Model 2 Heat Pump Model 34 Hoom Air Conditioner 1 START STOP BUTTON D Operation starts when this button is pressed and stops when button is pressed again 2 OPERATION MODE SELECTION BUTTON Used to select the operation mode i 3 ROOM TEMPERATURE SETTING BUTTONS ALS Used to select the room temperature 4 INDOOR FAN SPEED SELECTOR Used
12. gt Setting 0 5 Compressor OFF Temp gt Setting 0 5 Service Manual 27 Operation At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 C lt Intake Air Temp gt 25 24 C lt Intake lt 26 gt Intake Air 1 C 22 lt Intake lt 24 gt Intake Temp 0 5 C 18 lt Intake Air lt 22 gt Intake Temp Intake Temp lt 18 gt 18 When Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the speed of the indoor fan repeats the low airflow speed or pause as in dehu midification operation 3 Fuzzy Operation for Heating e According to the setting temperature selected by Fuzzy rule when the intake air temp is 3 C or more above the setting temp the compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp Setting Temp Compressor OFF Temp gt Setting Temp 3 At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 C lt Intake Air Temp gt Inta
13. website http www lgservice com LG Room Air Conditioner SERVICE MANUAL MODELS AS H076PB D ML2 AS H096PB D ML2 AS H126PA B D M S WL2 AS H096P L3 AS H126P L3 AS H076P L3 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL Air Conditioner Service Manual TABLE OF CONTENTS LO Model I TREE tesa 3 MEI DT 4 Mile Ce 8 SVMOOIS USOC In 8 In oor RN 8 9 WEE 11 WE 11 Piping Eength na STE Le EEN 11 Preparing Work Capitale 12 ine GE 13 Drilla TG Wa 13 li hy Tong nas LS 14 the PIDNOS ree 15 Connecting the Cables to the Indoor Unit 18 Connecting the Gables to the Outdoor ie 19 ING TGs AVC du 20 FOLIC DING m 20 21 Air Purging With Vacuum PUMP citt ri ce icu A 21 M M 23 Hd PI LT LU T NEN 24 T
14. 140 o9 59 L T D Oe 12020 070 RO6D IC01D MAIN P W B ASSEMBLY DC PART TOP VIEW CN LRiCHED CN HUBCBL CN D1CHH CN D2 lt HH 998 18888888686868 CN LRXHD 98 99 PWB ASM 6871820439 PWB 68270480 6 201 Eg 8886 CN TH1CHH5 C1828UH V2 HM SIM D m 4 S T soo DILL qeggf Service Manual 53 DISPLAY ASSEMBLY 6871A20462 TOP VIEW PCB 6870A90176B PCB ASM 6871A20462 910181618161816181818 8181818 SUB P W B ASSEMBLY CN D4 ei PWB 5 6871 20363 S CN D3 CN D2 PWB 6870A90126B 888 88 818 8188 88 1 CN D1 58888 88 8 818 888 8188 1 01 CN D5 CN CON WH CN 12V WH 818 888 CN SW BL CN D7 9 e g e g e 88188 CN D6 CN D8 888 8 M A Qo 54 Hoom Air Conditioner Product Specifications Table 1 Model Name Item Unit Cooling Capacity Heating Capacity Moisture Removal
15. H Thailand 5 Split Type Air Conditioner C H X Z C N India Z Brazil D Indonesia V AC Inverter C O N AC Inverter H P Q DC Inverter C O W DC Inverter H P Cooling only Heat pump C O E Heater H P E Heater ooling Heating Capacity x 09 9 000 Btu h 1 115V 60Hz 2 220V 60Hz 3 208 230V 60Hz 5 200 220V 50Hz 6 220 240V 50Hz 7 8 9 U 220V 50Hz 3Phase B 208 230 60Hz 3Phase C 575V 50Hz 3Phase D 440 460 60Hz 3Phase 265V 60Hz 110V 50 60Hz F 200V 50 60Hz 380 415 V 50Hz 380 415V 60Hz Name of Chassis of Unit Ex LSP SP Chassis Look Color Artcool Model Basic 4 Plasma Filter 4 Way Tele LCD Nano 4 Nano F A changeove A clean Low Nano Plasma F A changeove A clean 4way Low Tele LED 4way Internet Plasma F 4Way Oxy generator Nano Plasma F A changeove A clean Nano Plasma F A changeove A clean 4way Nano Plasma F A changeove Autoclean 4way PTC Nano Plasma F A changeove A clean PTC Nano Plasma F A changeove A clean 4way Low A PTC Negative ION A Clean Nano Plasma Negative ION A Clean 4way Nano Plasma F Negative ION Healthy dehumidification A Clean Nano Plasma F 4Way A changeove A clean Oxy generator 4way Nano Plasma F Negative ION Healthy dehu
16. LT 25 FUNCION Of COMMONS MEET m um 25 Bio cV erm TT HD HH 32 AE Qm aaa taii 33 Remote Control Operations risunun u 34 uuu ananas m MT 35 Dil su a y e IR 35 2 le EE 37 neirgerationm Cycle eie ua ala busua Da 37 EE N 38 E 43 44 Schematic coetu a tate u up Z IS 51 Ber 51 Winnog Diad Ti 52 o e 53 Product Specifications EE 55 ir VIEW E 56 MOOO OE TONES 56 QH OO r M MN MINE EM E 57 Replacement Parts Listu metta tt teat 59 MAGO EE 59 Omm 60 2 Conditioner Code Type Code of Model 1 Producing Center A Z Refrigerant 2 Product Type A Z 3 Cooling Heating Inverter A Z 4 5 Capacity 0 9 6 Electric Range 1 9 A Z 7 Chassis A Z 8 Look A Z 9 Function A Z 10 Serial No 1 9 LG Model Name Chang won R22 A Chang won R410A C Chang won R407C T China X Mexico China R410A K Turkey R22 V Vietnam E Turkey R410A 5 Out Sourcing
17. Manual 29 Operation Operation Mode Setting Temp Selected Airflow Speed Sleep Timer Mode Remaining Time of Sleep Timer unit of hour Forced Operation Operation procedures when the remote control can t be used The operation will be started if the power button is pressed f you want to stop operation re press the button Heat pump Model Room Temp gt 24 21 lt Room Temp lt 24 Room Temp lt 21 Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor Fan Speed High Setting Temperature 22 While in forced operation the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation Cooling Model B Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room tem perature and resets in 18 1 minutes During test operation if remote controller signal is received the unit operates as remote controller sets If you want to use this operation Press and hold ON OFF button 3 5 seconds then the buzzer sound 1 beep e If you want to stop the operation re press the button Protection of the evaporator pipe from frosting f the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cooling cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evapo rator pipe fr
18. When making pipe path through rear wall you dont need to pick the pipe hole Drain hose junction 1 Remove the rubber stopple in the desired drain direc tion 2 Insert drain hose into the handle of drain pan and Join drain hose and connecting hose according to the figure by Only the desired direction Connecting part Drain 5 rubber 12 Hoom Air Conditioner 1 Attach an Installation guide desired surface INSTALLATION GUIDE MAP 6 2 Make a hole with a diameter of and depth of 30 35mm by piercing a screw point 3 Drive the fore plastic anchors into drilled points Plastic anchors 4 Hang the hole of product at the upper screws and remove the map Falling attention Hanger hole Rear side of Ne vA lt lt J 2 ss Drill the piping hole with 50mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Installation 6 Look at suited horizon by horizontal meter on the horizontal setting line and fix lightly the map by adhesive tape T Drill the pierted part as a diameter of 50mm for connecting piping In case of piercing rear surface 8 First Drive the two points of the upper parts by screws Leave 10m
19. cover to the indoor unit breaker and a dedicated gases or combustibles near and the service panel to the switching board the air conditioner outdoor unit If the electrical part cover of the installation may cause fire and Otherwise it may cause a fire or the indoor unit and the service panel of electrical shock failure of product the outdoor unit are not attached securely it could result in a fire or electric shock due to dust water etc 4 Hoom Air Conditioner that installation frame of the outdoor unit is not damaged due to use for a long time may cause injury or an accident Use caution when unpacking and installing Sharp edges may cause injury Do not disassemble or repair the product randomly It will cause a fire or electrical shock Operation Do not share the outlet with other appliances t will cause an electric shock or a fire due to heat generation Safety Precautions Do not install the product at a place that ther is concern of falling down Otherwise it may result in personal injury Do not use the damaged power cord Otherwise it may cause a fire or electrical shock Do not modify or extend the power cord randomly Otherwise it may cause a fire or electrical shock Take care so that the power cord may not be pulled during operation Otherwise it may cau
20. down 6 Hoom Air Conditioner Safety CAUTION B installation Install the drain hose to Install the product so thatthe Always inspect gas leakage ensure that drain can be noise or hot wind from the after the installation and repair securely done outdoor unit may not cause of product any damage to the neighbors Otherwise it may cause water leak e Otherwise it may cause dispute with Otherwise it may cause the failure of age the neighbors product Operation Keep level parallel in installing the product Avoid excessive cooling and perform ventila tion sometimes Otherwise it may cause vibration or water leakage Otherwise it may do harm to your health Use a soft cloth to clean Do not use wax thin When gas leaks open the window for ventila ner or a strong detergent tion before operating the unit he appearance of the air conditioner may deteriorate Otherwise it may cause explosion and a fire change color or develop surface flaws Service Manual 7 Dimensions B Dimensions This symbol alerts you to risk of electric shock This symbol alerts you to hazards that may cause harm to the air conditioner This symbol indicates special notes eem n E B B mm Hanger Hole Fix Hole Pipe Ho
21. the room temperature is controlled to the setting temperature 18 When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During the JET COOL function at any moment the A C starts to blow the cool air with side louvers closed at extremely high speed for 30 minutes setting the room temp automatically to 18 Jet Cool Mode Operation H P Model While in heating mode or Fuzzy operation the Jet Cool key cannot be input When it is input while in the other mode operation cooling dehumidification ventilation the Jet Cool mode is operated In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation n the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 e When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority During JET HEAT function at any moment the A C starts to blow the hot air with side louvers closed at extremely high speed for 60 minutes setting the room temp automatically to 30 Auto Restarting Operation e When the power is restored after a sudden power failure while in appliance operation the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory Operation Mode that is kept on the memory State of Operation ON OFF Service
22. to select fan speed in four steps low medium high and 5 COOL HEATING OPTIONAL Used to start stop speed amp cooling Speed cooling heating operates at super C2 high fan speed in cooling heating mode 6 CHAOS SWING BUTTON Used to stop or start louver movement and set the desired up down airflow direction 7 ON OFF TIMER BUTTONS Used to set the time of starting and stopping opera tion 8 TIME SETTING BUTTONS Used to adjust the time 9 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 NANO PLASMA OPTIONAL Used to start or stop the plasma purification function 14 HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON OPTIONAL Used to set the desired horizontal airflow direction 15 RESET BUTTON Used prior to resetting time or after replacing bat teries 16 2nd F Button Used prior to using modes printed in blue at the bottom of buttons 17 AUTO CLEAN OPTIONAL Used to set Auto Clean mode gt 1 Disassembly Disassembly WARNING Disconnect the unit from power supply before making any checks Be sure the power switch is set to OFF 1 To remove the
23. 0KQ at 25 C Check the indoor pipe temperature is disconnected or not about 5 25 C Check the DC voltage on the PWB ASSEMBLY The details of check are as followings Comp Relay Outdoor fan Relay Check point Comp ON Comp OFF Check point Fan OFF Between Micom Between Micom NO 63 Pe SY NO 53 HN Between 02 Between 03 14 Below DC 1V NO 11 GND Below DC 1V About DC 12V 4 way Relay Check point 4 way ON 4 way OFF Between Micom NO 51 and GND Between IC03M Below DC1V About 12V No 9 and GND Service Manual 49 Troubleshooting Guide Turn off Main Power gt Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor 4 way Check the open or short of connecting wires between indoor and outdoor 50 Hoom Air Conditioner Diagram E Schematic Diagram
24. 531A20278B 3531A20278C 3531A20278A 3531 20278 3531 20278 3531A20147W 135314 GRILLE ASSEMBLY INLET GOGH A BLUE B 135500 1 3531A20278D 3550A20123C 3550A20123C WOOD D 135500 2 3550A20124B 3550A20124B 135500 3 SISLEY S 135515 COVER ASSEMBLY TOP INDOOR 3550A20512B 3551A20031H 3550A20512B 3551A20031H WHITE W 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 147581 LOUVER HORIZONTAL 4758A20014B 4758A20014B 159830 AIR CLEANER ASSEMBLY 5983A20007T 5983A20007T CONTROL BOX ASSEMBLY INDOOR 4995A20487B 4995A20487A 263230 264110 POWER CORD ASSEMBLY 64114200145 64114200145 266090 6609 10008 6609A10008A 268712 PWB PCB ASSEMBLY DISPLAY 6871A20462A 6871A20462A PWB PCB ASSEMBLY MAIN 6871A10121L 6871A10121L PWB PCB ASSEMBLY MAIN DC 68714204390 6871420439 268717 PWB PCB ASSEMBLY SUB 6871A20363F 6871A20363F DRAIN PAN ASSEMBLY 3087A30004A 3087A30004A 352115 TUBE ASSEMBLY EVAPORATOR 5211A20302A 52114203028 352116 TUBE ASSEMBLY EVAPORATOR OUT 52114203018 52114203018 TUBE ASSEMBLY TUBING 5211AR7066F 5211AR7066D 352150 HOSE ASSEMBLY DRAIN 5251AR1222R 5251AR1222R 352380 AIR GUIDE 5238 20034 5238 20034 354210 EVAPORATOR ASSEMBLY FIRST 5421A20072A 5421A20072A 359012 FAN TURBO 5900A00003A 5900A00003A 349600 BRA
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26. CKET MOTOR 4960A20016A 4960A20016A NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz L Gservice com 60 Hoom Air Conditioner Replacement Parts List Outdoor Unit PART No Selen DESCRIPTION AS AS m HO96PB D ML2 id ala H076PB D ML2 H076P L3 430410 BASE ASSEMBLY OUTDOOR 3041A20008K 3041 20079 ASSEMBLY CONTROL OUTDOOR 3551430023W 437210 PANEL ASSEMBLY FRONT OUTDOOR 3721 20027 3721 20027 3721A20258A PANEL 3721A20026V 546810 MOTOR ASSEMBLY OUTDOOR 46814200045 46814200045 4681A20121B nara 550140 ISOLATOR COMP 4H00982E 4H00982E GRE 552111 TUBE ASSEMBLY CAPILLARY 5211A30331Q 5211A20117J 5211 21121 5211A21121B 552116 TUBE ASSEMBLY REVERSING 5211 20160 5211 20140 5211A20188U 5211A20188U 552201 VALVE CHECK 5220AR7182A 5220AR7182A 5220AR7182A 5220AR7182A 552202 VALVE REVERSING 5220AR3228B 5220AR3228D 5220AR3228D 5220AR3228D 552203 1 VALVE SERVICE 5220A20005B 5220A20005B 5220A20005B 5220A20005B 552203 2 VALVE SERVICE 5220A20001Q 5220A20006F 5220A20001Q 5220A20001Q 554031 CONDENSER ASSEMBLY BENT 5403A20019F 5403A20019V 5403A20045M 5403 20045 554160 COMPRESSOR SET 2520UGAP2GA 2520UGHP2AA 2520UGDP2CA 2520UGDP2CA 559010 FAN ASSEMBLY PROPELLER 5901A10055A 5901A10055A
27. Grille from the Chassis Pull the grille bottom the remove 2 securing screws Lift the both lower parts of panel front After pull down this panel a bit separate connecting wire with product 2 To remove the Control Box Before removing the control box be sure to disconnect the wires from PWB Pull the cover control out from the control box and disconnect other wires Remove securing screws Pull the control box out from the chassis carefully 4Way Fan Connector Comp Connector Motor Power Connector Connector ML Power Connector 2 5 oHm TDL T ie fx E lt 2 ZZ Nig LE SW gt 1 SAN SS Service Manual 35 Disassembly x AN NY Ca Ka OUN TY 4 Air Guide gt Ze Nf M T Motor Mount lt Y
28. OL BOX ASSEMBLY OUTDOOR 62 Hoom Air Conditioner 4995A90083B 4995A90083Y 5220AR7182A 5220AR7182A 5220AR3228B 5220AR3228D 5220 20005 5220 20005 P No 3828A20135V Printed in Korea
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30. d the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage Troubleshooting Guide Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp difference approx 0 Current less than 80 of rated current All amount of refrigerant leaked out Check refrigeration cycle Temp Difference Refrigerant leakege Temp difference approx 8 Current less than 80 of Clog of refrigeration cycle rated current Defective compressor Operating Current Temp difference less than 8 Current over the reated Excessive amount of refrigerant current Temp difference over 8 Normal Temperature difference between intake and discharge air depends on room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower tem perature difference is larger 2 Check temperature and pressure of refrigeration cycle Suction pressure Temperature Compared with Compared with Cause of Trouble Description the normal value the normal valve Hi Defective compressor Current is low igh Defective 4 way reverse valve Excessive amount of High pressure does not quickly refrigerant rise at the beginning of operation Insufficient amount of Current is low refrigerant Leakage Clogging Current
31. d work with the figure by N side is shiny without scratches 2 If a flared section is defective cut it off and do flaring work again flaring Inclined Surface Cracked Uneven damaged thickness Even length all round Indoor Preparing the indoor unit s piping and drain hose for installation through the wall Route the indoor tubing and the drain hose in the direction of rear left or right Tape the tubing drain hose and the connecting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit Gas side piping Connecting cable If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Service Manual 15 Installation Connecting the pipings with the indoor unit and drain hose with drain pipe D7 D 1 Align the center of the pipings and sufficiently tighten the flare nut by hand Indoor un ui V Flare S 2 Tighten the flare nut with a wrench Outside diameter 3 When ex
32. e all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness Refer to page 18 7 Always install an earth leakage circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the normal func tion of the overload 9 The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active phase conductors Service Manual 19 Installation 1 Checking the drainage 1 Form the piping by wrapping the connecting Pour a glass of water on the evaporator portion of the indoor unit with insulation materi Ensure the water flows through the drain hose of al and secure It with two eines of viny tapes the indoor unit without any leakage and goes out If you want to connect an additional drain hose the drain exit the end of the drain outlet should be routed above the ground Secure the drain hose appropriately 2 cases where the outdoor
33. e air temperature 15 detected and the setting temp is automatically set according to the intake air temperature 26 lt Intake Air Temp gt 25 24 C lt Intake Air Temp lt 26 C gt Intake 1 C 18 lt Intake Air Temp lt 24 gt Intake Air 0 5 Intake Temp lt 18 gt 18 While in compressor the indoor fan repeats low airflow speed and pause While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidification operation and 4 min compressor off repeat Compressor ON Temp gt Setting 0 5 Compressor OFF Temp gt Setting 0 5 In 10 min dehumidification operation the indoor fan operates with the low airflow speed Heating Mode Operation e When the intake air temp reaches 3 Cabove the setting temp the compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp Setting Temp Compressor OFF Temp gt Setting Temp 3 C e While in compressor on the indoor fan is off when the indoor pipe temp is below 26 C when above 28 C it operates with the low or setting airflow speed while in sleep mode with the medium airflow speed While in compressor off the indoor fan is off when the indoor pipe temp is below 33 when above 35 it operates with the low airflow speed f overloaded while in heating mode operation in order to prev
34. e wires to the terminals on the control board dividually according to the outdoor unit connection Ensure that the color of the wires of the outdoor unit and the terminal No are the same as those of the indoor unit Before connecting the cables to the terminal block remove the cables in the holder of the control cover and do it CAUTION The above circuit diagram is subject to change without notice The earth wire should be longer than the common wires When installing refer to the circuit diagram behind the panel front of the indoor unit Connect the wires firmly so that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram CAUTION If a power plug is not Main power source used provide a circuit breaker between power source and the unit as shown by Air Circuit Breaker Conditioner Use a circuit breake or time delay fuse CAUTION The power cord connected to the A unit should be selected according to the following specifications Type B approved by HAR or SAA mm Grade 14k 18k 24k 28k 30k 32k 36k 38k 0 75 1 0 15 25 2 5 55 Unit A Indoor Indoor Indoor Indoor Outdoor Outdoor Cable Type B IHO5VV F H05VV F H05VV F H05VV F NORMAL CROSS SECTIONAL AREA The power connecting cable connecting the indoor and outdoor unit should be selected according to the following s
35. ent the compressor from OLP operation the out door fan is turned on off according to the indoor pipe temp While in defrost control both of the indoor and outdoor fans are turned off B Defrost Control While in heating mode operation in order to protect the evaporator pipe of outdoor unit from freezing reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit Defrost control is available 30 minutes later since heating mode operation started and it will not prolong over 6 minutes e starts only when the outdoor pipe temperature falls below 6 C after 30 minutes passed from starting of heating operating and more than 10 minutes operation of compressor Deicing ends after 6 minutes passed from starting of deice operation or when the outdoor pipe temperature rises over 12 even if before 6 minutes Fuzzy Operation Model According to the temperature set by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting 0 5 Compressor OFF Temp gt Setting 0 5 At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 Hoom Air Conditioner Operation 26 C lt Intake Air Temp gt 25 24 lt Intake Air Tem
36. f the front panel and match the lower part of the front panel Panel Front Connector 3 Screw up the front panel and suspend the hook of the front panel in the groove Rinstallation Service Manual 23 Rinstallation 1 Check that all tubing and wiring have been properly connected 2 Check that the gas and liquid side service valves are fully open Prepare remote controller 1 Remove the battery cover by pulling it according to the arrow direction 2 Insert new batteries making sure that the and of battery are installed correctly 3 Reattach the cover by pushing it back into position Use 2 AAA 1 5volt batteries Do not use rechargeable batteries e Remove the batteries from the remote control if the system is not going to be used for a long time Settlement of outdoor unit e Anchor the outdoor unit with a bolt and 10mm tightly and horizontally on a concrete or rigid mount When installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake the case when the vibration of the unit is con veyed to the hose secure the unit with an anti vibration bushing
37. fected by the temperature of Heat Exchanger EVA When the sensor circuit for indoor temperature and connector in bad connection or are not engaged Compressor Outdoor Fan is stopped Check RO2H 12 1k RO4H 6 2k Micom Pin 66 27 Check the indoor temperature sensor is disconnected or not About 10 at 25 C Check Relay RY COMP for driving compressor When the power About AC220V 240V is applied to the connecting wire terminal support transferred to compressor PWB Assembly is normal Check the circuit related to the relay Check point COMP ON COMP OFF Between Micom No 63 and GND DC5V DCOV Between ICO2M No 14 Below DC 1V V and GND app About DC12 Turn off Main Power E Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Check the open or short of conmecting wires between indoor and outdoor 46 Hoom Air Conditioner Troubleshooting Guide When Indoor Fan does not operate Turn off Main power Check the connection of CN MOTOR1 2 Check the Fan Motor Hi Check the Fuse AC250V 3 15A 1 Check PWM signal from Micom Pin 50 Check On Off signal from micom pin14 Check Voltage of CN Motor 1 2 pin 45 is about 15V Turn ON Main Power can t for dehumidifying Change operation for cooling mode Service Manual 47 Troubleshoo
38. he system Usually the cylinder is used in a vertical standing position Installation Doaleak test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder When the system pressure is reduced to normal disconnect the hose from the cylinder Indoor unit Pressure gauge Charge hose Nitrogen gas cylinder in vertical standing position Service Manual 21 Installation Soap water method 1 Remove the caps from the 2 way and 3 way valves 2 Remove the service port cap from the 3 way valve 3 To open the 2 way valve turn the valve stem coun terclockwise approximately 90 wait for about 2 3 sec and close it 4 Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connec tions by a soft brush to check for leakage of the connecting points of the piping 5 If bubbles come out the pipes have leakage 3 Evacuation Connect the charge hose end described in the pre ceding steps to the vacuum pump to evacuate the tubing and indoor unit Confirm the Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies with tub
39. indicated below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrig eration system Therefore the refrigerant system must be leak test ed and evacuated to remove any noncondensables and moisture from the system 1 Preparation Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage 2 Leak test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylin der valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soap CAUTION To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize t
40. is low NOTICE 1 The suction pressure is usually 4 5 6 0 kg cm G Cooling at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty Service Manual 43 Troubleshooting Guide Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power J L After 10 seconds Turn on Main Power Does beeping sound is made from the Indoor Unit Check the voltage of power About AC 220V 60Hz Primarily the operating condition of Micom is OK About AC 220 240V 50Hz Main power s voltage Voltage applied to the unit Connecting method of Indoor Outdoor connecting cable Check each load Indoor Outdoor Fan Motor Check PWB Assembly Compressor Stepping Motor and contacting Fuse condition of related connector Pattern damage Varistor ZNRO1N Check the connection housing for contacting e Connector related to CN POWER 2 Connector related to CN MOTOR Connector contacting of Outdoor Fan Compressor Display PWB Assembly Check Main PCB Board Operation Check Items Content SMPS Transformer Indoor unit Input Voltage About 220 240 10 Check the power voltage Replace Trans Output Voltage About DC12V db IC04D 7805 Output DC 5V Replace IC04D e CO1A Reset IC OSCO01B 8MHz Voltage of Micom No 36 Rep
41. ke Air Temp 0 5 C Intake Air Temp lt 20 gt 20 When Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature Airflow Speed Selection The airflow speed of the indoor fan is set to high medium low or chaos by the input of the airflow speed selec tion key on the remote controller On Timer Operation e When the set time is reached after the time is input by the remote controller the appliance starts to operate The timer LED is on when the on timer is input It is off when the time set by the timer is reached f the appliance is operating at the time set by the timer the operation continues Off Timer Operation e When the set time is reached after the time is input by the remote controller the appliance stops operating The timer LED is on when the off timer is input It is off when the time set by the timer is reached f the appliance is on pause at the time set by the timer the pause continues 28 Hoom Air Conditioner Operation E Off Timer lt gt On Timer Operation When the set time is reached after the on off time is i
42. lace faulty parts DC 4 5 over and Soldering condition 44 Hoom Air Conditioner Troubleshooting Guide The product does not operate with the remote controller While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped When the compressor stopped Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by force Cause by the remote control Caused by other parts except the remote control When the mark 4 is displayed LCD screen replace battery gt L Check the contact of CN D1 2 connector Check the connecting circuit between the remote controller Check Display PWB Assembl No 89 R17 2Q IR LED TR R16 2 2KQ Voltage 2 02 Ro DC 45V Check point e Check the connecting circuit between PIN R02L 1K CO1L 680PF MICOM PIN e Check Receiver Assembly Service Manual 45 Troubleshooting Guide Compressor Outdoor Fan are unable to drive Turn on Main Power Operate Cooling Mode by setting desired temperature of the remote controller is less than one of the indoor temperature by 1 at least When in Air Circulation Mode Compressor Outdoor Fan is stopped Check the sensor for indoor temperature is attached close to be ef
43. le 570 568 137 8 Hoom Air Conditioner Dimensions Gas side 3 way valve Liquid side 2 way valve Models 575 525 260 301 73 392 35 100 Service Manual 9 Dimensions Gas side 3 way valve Liquid side 2 way valve 10 Hoom Air Conditioner Installation Indoor unit Do not have any heat or steam near the unit e Select a place where there are no obstacles front of the unit Make sure that condensation drainage can be con veniently routed away Do not install near a doorway Ensure that the space around the left and right of the unit is more than 50cm The unit should be installed as high on the wall as possible allowing a minimum of 10cm from ceiling Use a stud finder to locate studs to prevent unnec essary damage to the wall 1 More than 10 More than 50cm than 50 2 1 CAUTION Install the indoor unit on the wall where the height from the floor is more than 2 meter Outdoor unit e f an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted Ensure that the space around the back and sides is more than 10cm The front of the unit should have more than 70cm
44. m for hanging the product 9 Drive lower parts after facing hole of product with plastic anchors and fix completely the upper screws Plastic anchors 10 In case of nothing wrong connect the pipe and the wire Refer to installation manual WALL Service Manual 13 Installation Cutting the pipes and the cable 1 Use the piping kit accessory or the pipes purchased locally Slanted l 2 Measure the distance between the indoor and the out door unit 3 Cut the pipes a little longer than measured distance 4 Cut the cable 1 5m longer than the pipe length Removing burrs 1 Completely remove all burrs from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a downward direc tion as you remove burrs in order to avoid dropping burrs into the tubing Point down Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work 1 Firmly hold copper pipe in a die in the dimension shown in the table below 2 Carry out flaring work with the flaring tool Outside diameter mm inch 26 35 1 4 29 52 3 8 012 7 14 Hoom Air Conditioner 1 2 Copper pipe Clamp handle Reamer Red arrow mark Installation Check Smooth all round 1 Compare the flare
45. midification A Clean Oxy generator Dry Contact lt lt 2 gt Wired LG Model Development Serial ARTCOOL COLOR R Mirror N Walnut W White A Gogh B Blue S Sisley D Wood Q Quran M Metal K Mecca C Cherry Service Manual 3 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 1 classified by the following indications WARNING This symbol indicates the possibility of death or serious injury AXCAUTION us symbol indicates the possibility of injury or damage to properties only Meanings of symbols used in this manual are as shown below Be sure not to do Be sure to follow the instruction AWARNING Installation Always perform grounding Don t use a power cord a plug For installation of the product or a loose socket which is always contact the service center or damaged a professional installation agency Otherwise it may cause electrical Otherwise it may cause a fire or Otherwise it may cause a fire elec shock electrical shock trical shock explosion or injury Securely attach the electrical Always install an air leakage Do not keep or use flammable part
46. ner Exploded View Outdoor Unit 7 Models 437212 47 ei 477777778 LO LO Service Manual 57 Exploded View Outdoor Unit 9 12 Models 58 Hoom Air Conditioner Replacement Parts List Ind
47. ng Leave the valve on the charge set closed is higher than 1 kg cm G discharge the refrig Connect the charge hose to the service port erant until the gauge indicates 0 5 to 1 kg cm G if this is the case it will not be neces sary to apply a evacuatin Discharge the refrigerant gradually if it is dis charged too suddenly the refrigeration oil will also be discharged 40 Hoom Air Conditioner Troubleshooting Guide Evacuation All amount of refrigerant leaked Liquid side Outdoor unit Vacuum pump S mr CLOSE Procedure 1 Connect the vacuum pump to the center hose 3 Close the valve Lo side on the charge set of charge set center hose turn off the vacuum pump and confirm that the gauge needle does not move approxima 2 Evacuation for approximately one hour tely 5 minutes after turning off the vacuum Confirm that the gauge needle has moved pump toward 76 cmHg vacuum of 4 mmHg or less 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Service Manual 41 Troubleshooting Guide Gas Charging After Evacuation Gas side Check valve SS WIA UA Charging cylinder 1 OPEN Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis con nected from the vac
48. nput by the remote controller the on off timer operation is carried out according to the set time Sleep Timer Operation e When the sleep time is reached after 1 2 3 4 5 6 7 0 cancel hr is input by the remote controller while in appliance operation the operation of the appliance stops While the appliance is on pause the sleep timer mode cannot be input While in cooling mode operation 30 min later since the start of the sleep timer the setting temperature increases by 1 C After another 30 min elapse it increases by 1 again When the sleep timer mode is input while in cooling cycle mode the airflow speed of the indoor fan is set to the low When the sleep timer mode is input while in heating cycle mode the speed of the indoor fan is set to the medium Chaos Swing Mode By the Chaos Swing key input the vane automatically operates with the Chaos Swing or they are fixed to the desired direction Chaos Natural Wind Mode e When the Chaos Natural Wind mode is selected and then operated the high medium or low speed of the air flow mode is operated for 2 15 sec randomly by the Chaos Simulation Jet Cool Mode Operation C O Model f the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates e the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation n the Jet Cool mode operation
49. of space Do not place animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are mini mum Select a place so that the warm air and noise from the air conditioner do not disturb neighbors Installation than 60cm More than 10cm More than 10cm Standard Length Elevation Capacity Btu h 30k 38k Outdoor unit Indoor unit Indoor unit Outdoor unit Outdoor unit If the piping length is more than 5m A CAUTION Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters Service Manual 11 Installation Preparing Open front panel 1 Push the front panel backward and lift it up to remove the two screws 2 As soon as you lift the both lower parts of panel front you can hear the sound from panel front At this moment panel front is separated 3 After pulling down this panel a bit separate connecting wire from the product Remove pipe cover and side cover 1 Remove two fixing pipe cover 2 Pull up the side cover of desired connecting direction and then side cover is separated 3 Pick the pipe hole of the side cover CAUTION After removing the pipe hole cut the burr for safety
50. om frosting When the indoor pipe temp is 7 or higher after 3 min pause of the compressor the compressor and the out door fan is turned on according to the condition of the room temperature Buzzer Sounding Operation e When the appliance operation key is input by the remote control the short beep beep sounds e When the appliance pause key is input by the remote control the long beep sounds When key is input by the remote control while the slide switch on the main unit of the appliance is on the forced operation position the error sound beep beep beep beep beep is made 10 times to indicate that the remote control signal cannot be received 30 Hoom Air Conditioner Operation Air Cleaner Operation When air cleaner function is selected during Air Conditioner operation Plasma air cleaner function will be operated while in any operation mode with selecting the function The function is to be stopped while it is operating with selecting the function e When air cleaner function is selected during operation off The function will be only operated When inlet grille of air conditioner is opened during plasma operation High Voltage Generator H V B is to be stopped When inlet grille of air conditioner is closed during plasma operation High Voltage Generator H V B will be operated again Service Manual 31 Operation 1 Heating Model Operation Indicator Cooling Soft Dry
51. oor Unit PART No DESCRIPTION AS H096PB D NL2 AS H126PA B D M S WL2 AS Ho76PB DIML2 9 076 1 131410 135312 CHASSIS ASSEMBLY GRILLE ASSEMBLY FRONT INDOOR 3141A20030A 3141A20030A 3531 20277 Replacement Parts List 3141 20030 3141 20030 3531 20277 3531 20277 3531 20277 3531 20277 METAL 3531 20277 3531 20277 3531 20277 REMARKS 3531 20277 3531 20277 3531 20277 SISLEY J531A20277W WHITE 3531 202770 3531 202770 135314 GRILLE ASSEMBLY INLET 35314201472 3531 20278 3531 20278 3531 20278 WOOD 3531 20278 3531 20278 3531 20278 3531 20278 METAL 3531A20278A 3531A20278A 3531A20278A 135500 1 3550A20123C 3550A20123C 3550A20123C 3550A20123C ez oe zue zem ASSEMBLY TOP INDOOR 3551A20031F 3551A20031F 3551A20031F 3551A20031H MOTOR ASSEMBLY STEP 4681 20055 4681A20055A LOUVER HORIZONTAL SE AIR ASSEMBLY 5983 20007 5983 20007 5983 20007 5983 20007 2853 eewer emm R 264110 POWER CORD ASSEMBLY 64114200145 64114200148 64114200145 64114200148 268712 PWB PCB ASSEMBLY DISPLAY 6871A10121L 6871A20462A 6871A20462A 6871A20462A 6871A20460A R 6871 101211 268714 1 PWB PCB
52. p lt 26 C gt Intake Temp 1 22 lt Intake Temp lt 24 C gt Intake Air Temp 0 5 C 18 lt Intake Air lt 22 gt Intake Temp Intake lt 18 gt 18 When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule While in Fuzzy operation the airflow speed of the indoor fan is automatically selected according to the temper ature Fuzzy Operation H P Model When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off the operation mode is selected When determining the operation mode the compressor the outdoor fan and the 4 way valve are off and only the indoor fan is operated for 15 seconds Then an operation mode is selected according to the intake air temp at that moment as follows 24 lt Air Temp gt Fuzzy Operation for Cooling 21 C lt Air Temp lt 24 C gt Fuzzy Operation for Dehumidification Inatake Air Temp lt 21 C gt Fuzzy Operation for Heating f any of the operation modes among cooling dehumidification heating mode operations is carried out for 10 sec or longer before Fuzzy operation the mode before Fuzzy operation is operated 1 Fuzzy Ope
53. pecifications Type B approved by HAR or SAA NORMAL CROSS SECTIONAL AREA 0 75mm Grade 30k 32k 36k 38k NORMAL Grade 14k 18k 24k 28k NORMAL CROSS SECTIONAL AREA SECTIONAL AREA 15 25 Cable Type B HO7RN F HO7RN F 0 75 0 75 Cable Type B HO7RN F 18 Room Air Conditioner Installation 1 Remove the control cover from the unit by loos Outdoor Unit ening the screw Connect the wires to the terminals on the control board individually EES E eeh 2 Secure the cable control board with the cord clamp 3 Refix the control cover to the original position Connecting cable with the screw Connecting cable 4 Use a recognized circuit breaker between the power source and the unit A disconnecting device to adequately disconnect all supply lines must be fitted Circuit Grade Breaker 5 14 18K 24k 28K 30k 32K 36k 38k CAUTION After confirmation of the above conditions prepare wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they ar
54. ration for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting 0 5 Compressor OFF Temp gt Setting 0 5 At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 lt Intake Air Temp gt 25 24 C lt Intake Temp lt 26 C gt Intake Air Temp 1 C 22 C lt Intake lt 24 gt Intake Air 0 5 18 lt Intake Air lt 22 gt Intake Temp Intake Air Temp lt 18 G gt 18 When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule e While in Fuzzy operation the speed of the indoor fan is automatically selected according to the temperature 2 Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more below the setting temp the compressor is turned off When 0 5 or more above the setting temp the compressor is turned on Compressor ON Temp
55. se a fire or electrical shock Unplug the unit if strange sounds smell or smoke comes from it Otherwise it may cause electrical shock or a fire Service Manual 5 Safety Keep flames away Take the power plug out if neces Do not use the power cord sary holding the head of the plug near the heating tools and do not touch it with wet hands Otherwise it may cause a fire Otherwise it may cause a fire or Otherwise it may cause a fire and electrical shock electrical shock X i d UE KSE Do not open suction inlet Do not allow water to run into Never touch the metal parts of of the indoor outdoor unit dur electrical parts the unit when removing the fil ing operation ter Otherwise it may electrical shock e Otherwise it may cause the failure of They are sharp and may cause and failure machine or electrical shock Do not step on the indoor outdoor unit and not place a heavy object on the power cord not put anything on it may cause an injury through dropping of the unit or Otherwise it may cause a fire or electrical shock falling down When the product is submerged into water Take care so that children may not step on the always contact the service center outdoor unit Otherwise it may cause a fire or electrical shock Otherwise children may be seriously injured due to falling
56. tems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Connect the charge hose with the push pin to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position Troubleshooting Guide Outdoor unit 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cnvg 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indi cating 3 to 5kg cm g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and the ser vice port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage Service Manual 39 Troubleshooting Guide Balance Retrigerant of the 3 way Valve Gas leakage Liquid side Outdoor unit 6190 n V CLOSE Procedure 1 Confirm that both the 2 way and 3 way valves 3 Open the valve Lo side on the charge set and are set to the back seat discharge the refrigerant until the gauge indi cates 0 kg cm G 2 Connect the charge set to the 3 way valve s there is no air the refrigerant cycle the port pressure when the air conditioner is not runni
57. tending the drain hose at the indoor unit install the drain pipe Indoor unit drain hose Adhesive Vinyl tape narrow Wrap the insulation material around the connecting portion 1 Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them Plastic bands Insulation material together with vinyl tape so that there may be no gap DE 2 Wrap the area which accommodates the rear piping Se housing section with vinyl tape Connection lt pipe unit pipe Vinyl tape Wrap with vinyl tape wide Connecting cable 3 Bundle the piping and drain hose together by wrap ping them with vinyl tape over the range within which Vinyl tape narrow they fit into the rear piping housing section Wrap with vinyl tape Vinyl tape wide Drain hose 16 Hoom Air Conditioner Installation Outdoor Align the center of the pipings and sufficiently tighten the flare nut by hand Finally tighten the flare nut with torque wrench until the wrench clicks Outdoor unit When tightening the flare nut with torque wrench Gas side piping I Bigger diameter ensure the direction for tightening follows the arrow on the wrench Liquid side piping Smaller diameter Outside diameter mm 012 7 1 2 515 88 5 8 219 05 3 4 Torque wrench Service Manual 17 Installation Connect the cables to the indoor unit by connecting th
58. ting Guide When Louvers do not operate Confirm that the Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the Louver with hands Normal e Check the connecting condition of CN UD LR1 LR2 Connector Check the soldering condition on PWB of CN UD LR1 LR2 Connector e Confirm that there is DC 12V between of CN UD and GND Confirm that there is a soldering short at following terminals Between 05 46 47 4 62 55 66 67 69 60 6 652 Between 5 7 40 4 42 43 of ICO2M Between 3 42 43 44 of ICOSM 5 42 49 49 db of IC04M 5 of CN UD LR1 LR2 4 5 Between 2 3 4 Between 0 3 4 H H If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Louvers 48 Hoom Air Conditioner Troubleshooting Guide When Heating does not operate Turn ON Main Power Operate Heating Mode by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2 C at least In heating Mode the indoor fan operates in case the pipe temperature is higher than 28 C Check the connector of intake and pipe sensor thermistors e Check the related circuit of RY AWAY Check the indoor room temperature is disconnected or not about 1
59. unit is installed below the indoor unit perform the following Tape the piping drain hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent Seal small openings around pipings with a gum type sealer rr SS N e QU gt gt 2 Drain piping he drain hose should point downward for easy drain flow Trap is required to prevent water Downward slope from entering into electrical parts 3 In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the piping and connecting cable from down to up Do not make drain piping like the following Secure the taped piping along the exterior wall Form a trap to prevent water entering the room Accumulated Ei Do not raise drai Se Fix the piping onto the wall by saddle or equiva lent Seal a small opening 4 around pipings with gum type sealer ater ater r leakage leakage Tip of drain hose Less than dipped in water 90mm gap 0 0 i Water leakage Ditch 20 Room Air Conditioner Air and moisture remaining in the refrigerant system have undesirable effects as
60. uum pump to the valve at the bottom of the cylinder f you are using a gas cylinder also use a scale and reverse the cylinder so that the sys tem can be charged with liquid 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air Be careful of the liquid refriger ant The procedure is the same if using a gas cylinder 3 Open the valve Lo side on the charge set and charge the system with liquid refrigerant f the system can not be charged with the spec ified amount of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 42 Hoom Air Conditioner Outdoor unit This is different from previous procedures Because you are charging with liquid refrigerant from the gas side absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the gas to be dis charged f the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 5 Mount the valve stem nuts an
61. ve halfway and purge the air from the manifold hose using the refrigerant gas 3 Close the liquid side service valve all the way in 4 Turn on the unit s operating switch and start the cooling operation 5 When the low pressure gauge reading becomes 1 0 5kg cm2 G 14 2 to 7 1 P S I G fully close the gas side valve stem and then quickly turn off the unit At that time Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit Operation P Operation Function DISPLAY 1 C O Model high quality LCD remote controller supplied Operation Indicator while in appliance operation off while in appliance pause Timer on off and Sleep timer Indicator On while in timer mode on off and in sleep timer mode off when timer mode is completed or canceled Comp Running Indicator While in appliance operation on while in outdoor unit compressor running off while in compressor off Plasma Indicator On while in plasma mode off while plasma mode is canceled Auto restart n case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions If your want to use this operation press the Auto Restart Button Power Forced Operation Operation starts when this button is pressed and stops when you press the button again 2 H P Model high quality LCD remote controller supplied
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