Ceiling & Floor Type Air Conditioner SVC MANUAL(Exploded View)
Contents
1. lt co ce ex e ire Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 46 LGE Internal Use Only 5 Outdoor Unit e Models LV C422FLA0 LV C482GLA0 602 0 48 0 LV C60BHLA0 y ES pon LLL NANANA NNAS UAIT IM CIII 77 7 437212 055 5 0 S SS SN S 5 N 0 0 S NS 7 552203A 435512 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes AN Wi 7 co N WQ 47 UUH LGE Internal Use Only 6 Outdoor Unit e Models LV C422FLA0 LV C482GLA0 602 0 48 0 LV C60BHLA0 ES pon LLL NANANA NNAS UAIT IM CIII 77 7 437212 055 5 0 S SS SN S2. ey 10 60Hz 220V POWER SUPPLY LINN HOOGLNO OL Red Wire Low 1 gus socket poH PTCR WHI Cr OPTION RD Lc BLOWER Y Ground MOTOR Bronn Wre 1 Run Cap ROOM SENSOR co ewvi TMo 3854A20013K To the indoor unit COOLING ONLY Model LV C488GLAO OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM BK FUSE 250V 5A C FUSE SWITCH BOX TERMINAL BLOCK 30A White Wire NEUTRAL Red Wire LINE F 1 L Fuse E 3 30 3WIRES 220V POWER SUPPLY Blue Wire Red Wire COMM Black Wire HIGH Blue Wire MED gt L Ll LINN HOOGLNO OL LNT w2F 3 TERMINAL BLOCK CAPACITOR Red Wire LOW T Y TO THE INDOOR UNIT SOCKET Ej Ground ROOM SENSOR FREEZE SENSOR 3854A20026J Copyright 92008 LG Electronics Inc All right reserved PALS Only for training and service purposes LGE Internal Use Only COOLING ONLY M
3. 5 N 0 0 S NS 7 552203A 435512 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes AN Wi 7 co N WQ b 48 UUH LGE Internal Use Only P NO 3828A20172X February 2008
4. Copyright 92008 LG Electronics Inc All right reserved 31 Only for training and service purposes LGE Internal Use Only Operation Name and Function Remote controller 1 Cooling Model Remote Controller Signal transmitter Transmits the signals to the room air conditioner TX AOK a Hu rrr 4 GOTIME GHB TIME BREBB Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes O9 Oo 06 o O89 32 OPERATION DISPLAY Displays the operation conditions START STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again OPERATION MODE SELECTION BUTTON Used to select the operation mode ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation TIME SETTING BUTTONS Used to adjust the time TIMER SET CANCEL BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation AIR FLOW DIRECTION START STOP BUTTON Used to stop or start louver movement and set the desired up down airflow direction SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature RESET BUTTON Us
5. ON SET 0 5 OFF SET TEMP 0 5 C More than More than 3 minutes 3 minutes INDOOR FAN Low Low Low Low Low COMPRESSOR ON OFF ON OFF ON 5 Auto Operation Operation Condition Intake air Temperature Setting temperature Fan speed Air Direction Control Over 26 C 25 C ee Over 24 C below 26 C Intake air 1 C In this mode when en Auto Operation 2 7 pressing the verti initial start Over 22 Cs below 24 Intakerair 9 96 cal air diretion con Over 20 C below 22 C intake air temperture Controlled trol below 20 C 20 C by Fuzzy logic Button louvers moves to 1 f When pressing room temp Over 20 C below 30 C Fuzzy control rhythm refer to erature setting button below 20 C 20 15 during Auto Operation over 30 C 30 C Intake Air temp Setting Temp 0 5 C Compressor OFF Setting Temp 0 5 C Compressor ON Indoor Fan Fuzzy Speed Compressor ON OFF ON OFF Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 14 LGE Internal Use Only Auto Operation for Soft Dry The Setting temperature will be same as that of the current intake air temperature Compressor ON temperature Setting temperature 1 C Compressor OFF temperature Setting temperature 0 5 C 1 f rhythm louver operation In Auto operation mode when pressing the vertical ai
6. To the Indoor unit GN YL 3854A20203Q Model 422 0 LV C482GLAO OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM SWITCH BOX TERMINAL BLOCK 30A ite Wire 1 NEUTRAL Red Wi LINE Cl 20 To E 3 Red Wie z COMM 1 lue Wire MED 52C A LOW oibo JH ra 4 5150 ono 52C B 99 515 LINN HOOQ100 OL SOCKET socket ES r 14 LINN HOOGNI OL FREEZE SENSOR 24 3Ls 5 ey POWER SUPPLY 10 220 60 2 38544201355 Copyright 92008 LG Electronics Inc All right reserved 10 Only for training and service purposes LGE Internal Use Only COOLING ONLY Model LV C602HLAO OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM SWITCH BOX TERMINAL BLOCK 30A White Wire NEUTRAL Red Wire LINE o fits E 20 C L Fuse z 3 Dm 1 S Bue Wie OR Black Wire 1 HIGH BK Blue Wire MED Bp T ren IS
7. This function is to swing the louver up and down automatically and to set it at the desired position The procedure is as the following ist Press the ON OFF Button to operate the product 2nd Press the Airflow Direction Control Button to swing the louver up and down automatically 3nd Repress the Airflow Direction Control Button to set the louver as the desired position MODEO MODE1 MODE 2 MODE3 MODE4 MODE5 MODE6 MODE 7 3 Cooling Mode Operation When selecting the Cooling 3 amp Mode Operation the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air temp COMP ON SET TEMP 0 5 C COMP OFF SET TEMP 0 5 C More than More than 3 minutes 3 minutes INDOOR FAN Selecting Low Selecting w Selecting fan speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON Copyright 2008 LG Electronics Inc All right reserved 13 Only for training and service purposes LGE Internal Use Only 4 Cooling Mode with Sleep Mode Auto Operation e When selecting the Cooling combined with the Sleep Mode Auto Operation A is as following setting temperature will be raised by 1 C 30minutes later and by 2 C 1 hour later The operation will be stopped after 1 2 3 4 5 6 7 hours the operation diagram Intake Air temp 30 minutes 30 minutes
8. When the room temperature rises over the compressor ON temperature the operation mode is switched to the cooling mode When the room temperature falls between the compressor ON temperature and OFF temperature the opera tion mode is switched to the Soft Dry Operation In this temperature range 10min Dry Operation 7min operation OFF During 10min Dry operation if the room temperature falls below compressor OFF temperature Compressor OFF micom dehumidify mode control of fan speed is as following Intake Air temp Setting temp 1 0 C Compressor ON Setting temp Setting temp 0 57 Compressor OFF Cooling 2min 58sec 10min Within 7min Cooling 2min 58sec gt A gt 2 3 COMPRESSOR ON OFF ON OFF ON OFF OUTDOOR FAN ON OFF ON OFF ON OFF Selected Selected INDOOR FAN Fan Fan 8 Protection of the evaporator pipe from frosting If the temperature of the indoor coil is below 0 C after 7 minutes from starting the compressor the compressor and the outdoor fan is stopped and then after 3 minute delay of the compressor and the temperature of the indoor coil is over 7 C the compressor and the outdoor fan is reoperated Indoor fan operates at low speed comp OFF or at selected speed comp ON 9 Test Operation When pressing forced operation switch about 3 seconds the unit operates in cooling mode at high speed fan re
9. AM M a TE 38 rene 41 Exploded View best cada koi ui ide 43 Copyright 2008 LG Electronics Inc All right reserved 2 Only for training and service purposes LGE Internal Use Only Functions Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature sensor Thermistor Room temperature control Starting Current Control Indoor fan is delayed for 5 seconds at the starting Time Delay Safety Control Restarting is inhibited for approx 3 minutes Indoor Fan Speed Control High Med Low Chaos Soft Dry Operation Mode Intermittent operation of fan at low speed 4 Sleep Mode Auto Control The fan is switched to low Cooling speed The unit will be stopped after 1 2 3 4 5 6 7 hours Natural Air Control by CHAOS Logic The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed Airflow Direction Control 2 lt 2 o o 2 Q D o o c 2 o 2 up and down automatically Auto Operation The setting temperature indoor fan speed and desired operation made are automatically set by fuzzy rule Copyright 92008 LG Electronics Inc All right reserved 3 O
10. HEAT CONDENSER EXCHANGER CONDENSER l GAS SIDE COMPRESSOR Cu Pipe size Diameter Piping length m Elevation m Additional MODEL refrigerant Gas Liquid Rated Max Rated Max g m 36K 5 8 3 8 7 5 15 5 10 30 42K 3 4 3 8 7 5 15 5 10 35 48K 3 4 1 2 7 5 15 5 10 40 60K 3 4 1 2 7 5 15 5 10 45 Rated performance for refrigerant line length of 7 5m If 36K Model is installed at a distance of 15m 225g of refrigerant should be added 15 7 5 x30g 225g 9 Copyright 2008 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes Wiring Diagram COOLING ONLY Model LV C362FLAO OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM BK FUSE T3 15A Pal SWITCH BOX TERMINAL BLOCK 30A 1 NEUTRAL ed Wi UNE N 20 3 Red Wie z Bue Wie COMM SL Low Ambient LINN HOOGLNO OL 2 1 MED LOW ra a L 1 i 2 2 10 220V 60Hz SOCKET POWER SUPPLY SOCKET EIS FREEZE SENSOR
11. Replace or change PCB Add gas and leak test Replace Wait for de ice initiation Clean Replace Replace Add gas and leak test Adjust temperature Clean filter Replace Replace Replace Replace Add gas and leak test LGE Internal Use Only Exploded View 1 Indoor Unit 602 0 LV C60BHLAO LV 422 0 62 0 LV Models LGE Internal Use Only 43 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 Indoor Unit Models 482 1 0 LV CA8BGLAO LGE Internal Use Only 44 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 3 Indoor Unit Models LV C482GLAO LV CA8BGLAO LGE Internal Use Only 45 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 Outdoor Unit Models LV C362FLAO 137213B N S ie 77777772 inn ELI Il M N LITT lt 435300 137213A
12. 3 4 3 8 75 15 5 10 35 48K BTU h 3 4 1 2 75 15 5 10 40 A 60K BTU h 3 4 1 2 7 5 15 5 10 45 Outdoor unit If 36K Model is installed at a distance of 15m 225g of refrigerant should be added 15 7 5 x 30g 225g Capacity is based on standard length and maximun allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle Copyright 92008 LG Electronics Inc All right reserved 18 LGE Internal Use Onl Only for training and service purposes y 2 Indoor unit installation Bi Installation of Unit Unit should be installed for horizontal and verti cal discharge application only POSITION OF SUSPENSION BOLT 2 Apply a joint canvas between the unit and duct to absorb unnecessary vibration Unit mm Dimension A B C Capacity 36K BTU h 1550 1362 236 42K BTU h 1550 1362 236 48K BTU h 1550 1362 272 60K BTU h 1550 1362 292 Install the unit leaning to a drainage hole side as a figure for easy water drainage C POSITION OF CONSOLE BOLT A place where the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed Copyright 92008 LG Electronics Inc All right reserved 19 Only for training and service purposes LGE Internal Use Only Select and mark the positi
13. Quantity No 1 1 1 Model CRN5 0500 PFV 5549 SR061RAA Maker Copeland TECUMSEH LG Capacity Btu hr 62 700 48 096 62 000 Motor Type Condenser Inducted PSC Three Phase Induction Motor Motor Input 6 270 4 610 5 535 Oil Type SUNISO 4GDID WITCO LP200T SUNISO 4GSI Oil Charge Gb 1 774 2 000 1 800 O L P Type model name Internal Internal Internal Outdoor Coil Tube Size OD inch mm 0 375 9 52 0 375 9 52 0 375 9 52 Fins per inch 16 17 16 is of Rows amp Column 2R22C 2R 44 2R 44C 8 Outdoor fan motor Output 90 2 90 2 90 2 5 Model 071 9 071 9 071 9 o No of Poles 6 6 6 Input Ww 168 2 168 2 168 2 Running Current A 0 81 2 0 8172 0 81 2 Capacitor yF Vac 6 0 370 6 0 370 6 0 370 Outdoor Fan Type Propeller Propeller Propeller Used Diameter EA mm 2 382 2 382 2 382 Discharge Side Top Side Discharge Side Discharge Side Discharge Speed rpm 900 900 900 Air Circulation Outdoor CMM CFM 49 1 730 2 49 1 730 2 49 1 730 2 Noise Level Sound Press 1m Outdoor dB A 3 62 62 62 SVC Valve Liquid inch mm 1 2 12 7 1 2 127 1 2 12 7 Gas inch mm 3 4 19 05 3 4 19 05 3 4 19 05 Dimensions W H D Outdoor inch mm 35 43 48 23 14 57 900 1225 370 35 43 48 23 14 57 900 1225 370 35 43 48 23 14 57 900 1225 370 Net Weight Outdoor kg lbs 95 209 95 209 95 209 Power Supply Cable No mm 3 8 5 3 8 5 3 8 5 Connecting Cable No mm 4 0 75 4 0 75 4 0 75 Connecting Tube Liquid Side inch mm 1 2 12 7 1 2 12 7 1
14. 40A 48K BTU h 50A 60K BTU h 50A Control terminal board Cord damper WIRING CONNECTION 2 INDOOR UNIT Remove side panel cover for electrical connection between the indoor and outdoor unit Remove crews Use the cord clamper to fix the cord OUTDOOR UNIT Remove the control cover for wiring connection Use the cord clamper to fix the cord Earthing work Connect the cable of diameter 1 6mm or more to the earthing terminal provided in the control box INN do earthing E Main terminal board x Please check Cover control Copyright 92008 LG Electronics Inc All right reserved 24 Only for training and service purposes LGE Internal Use Only Connecting Pipes to the Indoor Unit 1 Preparation of Piping Main cause of gas leakage is defect in flaring work Carry out correct flaring work in the follow ing procedure 1 Cut the pipes and the cable E Use the accessory piping kit or the pipes pur chased locally E Measure the distance between the indoor and the outdoor unit E Cut the pipes little longer than measured dis tance E Cut the cable 1 5m longer than the pipe length 2 Burrs removal Completely remove all burrs from the cut cross section of pipe tube E Put the end of the copper tube pipe to downward direction as you remove burrs in order
15. kcal hr W 9 072 10 551 10 584 12 309 12 096 1 4067 Btu hr 36 000 42 000 48 000 Heating Capacity kcal hr W 2 Btu hr Input Cooling Heating 3 950 4 400 5 100 Running Current Cooling Heating A 18 5 19 5 20 Starting Current Cooling Heating 90 90 90 Power Supply Q V Hz 1 220 60 1 220 60 1 220 60 2 Power Factor 96 96 5 97 97 amp EER Cooling kcal hr W W W 2 29 2 66 2 18 2 55 2 27 2 64 Btu hr W 9 1 8 5 9 C O P Heating W W kcal hr W 5 Btu hr W Setting temperature range cool heat 18 30 18 30 18 30 Dehumidification Rate Vh 4 26 4 91 4 96 Refrigerant Control Capillary Tube Capillary Tube Capillary Tube Refrigerant charge g oz type 1 830 64 55 R22 2 650 93 4 R22 3 000 107 7 R22 Indoor fan motor Output Ww Model KDE2FS0654 KDE2FS0654 KHF2G4001 No of Poles 4 4 4 Input 250 260 380 Running Current A 1 17 1 17 1 73 Capacitor yF Vac 5 0 370 7 5 370 7 5 370 Indoor Fan Type Centrifugal Centrifugal centrifugal Used Diameter EA inch mm 4 144 4 144 3 164 5 Motor Step 3 3 3 S Indoor Fan RPM Cooling H M L rpm 1400 1200 1000 1450 1250 1050 1470 1240 1040 Heating H M L rpm z Air Circulation Indoor H M L CMM CFM 31 27 22 33 29 24 36 32 27 Noise Level Sound Press im Indoor H M L dB A 3 56 54 52 57 55 53 59 57 55 Temperature Controller Thermistor Thermistor Thermistor Indoor Coil Tube Size OD inch mm 9 7 9 7 9 7 Fins per inch 13 13 13 of Rows amp Column 3R 10C 3R 1
16. to avoid to let burrs drop in the tubing 3 Putting nut on E Remove flare nuts attached to indoor and out door units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Outside Diameter A 1 4 070 5 3 8 0 5 0 8 1 2 0 5 0 8 5 8 0 8 1 0 3 4 1 0 1 3 Firmly hold copper tube in bar or die as indicat ed dimension in the table above 5 Check E Compare the flared work with figure flare is noted to be defective cut off the flared section and do flaring work again Copyright 92008 LG Electronics Inc All right reserved 25 Only for training and service purposes Slanted Uneven Rough 0 90 a Reamer Point down T 907 Flare nut Copper tube Smooth all round Inside is shining without scratches 1 224 9 Improper flaring YT E if UNA Inclined Surface Cracked Uneven damaged thickness Even length all round LGE Internal Use Only 6 Pipe bending Annealed copper pipe with small diameter 06 35 or 09 52 can be easily bent manually In this case secure large R radius for the bend section and gradually bend pipe If annealed copper pipe is large in diameter 215 88 or 019 05 bend pipe with bender Use bender appropriate for the pipe diameter 7 Brazing In refrig
17. 0C 4R 10C Dimensions W H D Indoor inch mm 1550 650 208 1550 650 208 1550 650 272 Net Weight indoor kg lbs 52 115 52 115 61 134 Compressor Locked Rotor Amp A 102 92 92 120 Type Reciprocating Rotary Rotary Rotary Quantity No 1 2 Model CR42K6 PFV 502 QP 306KC QJ 278KC QP 348KC Maker Copeland LG LG LG Capacity Btu hr 10 559 41 900 22 600 19 200 25 700 Motor Type PCS PSC PSC PSC Motor Input 3 850 2 152 1 980 2 424 Oil Type SUNISO 3GS SUNISO 4GSI SUNISO 4GSI SUNISO 4GSI Oil Charge 1 331 700 500 700 O L P Type model name Internal Internal Internal Internal Outdoor Coil Tube Size OD inch mm 0 275 7 0 0 375 9 52 0 375 9 52 Fins per inch 18 17 17 of Rows amp Column 2R36C 1R 44C 1R 44C 8 Outdoor fan motor Output W 125 902 90 2 5 Model ARE306B01 071 9 071 9 No of Poles 6 6 6 Input W 190 168 2 168 2 Running Current A 0 81 2 0 81 2 Capacitor yF Vac 6 370 6 0 370 6 0 370 Outdoor Fan Type Propeller Propeller Propeller Used Diameter EA mm 1 460 2 460 2 460 Discharge Side Top Side Discharge Side Discharge Side Discharge Speed rpm 1040 900 900 Air Circulation Outdoor CMM CFM 58 2 048 49 1 730 2 49 1 730 2 Noise Level Sound Press 1m Outdoor dB A 3 58 58 58 SVC Valve Liquid inch mm 3 8 9 52 3 8 9 52 1 2 12 7 Gas inch mm 5 8 15 88 3 4 19 05 3 4 19 05 Dimensions W H D Outdoor inch mm 34 3 31 5 12 6 870 800 320 35 43 48 23 14 57 900 1225 370 35 43 48 23 14 57 900 1225 370 Net W
18. 2 12 7 5 2 Socket Flare Gas Side inch mm 3 4 19 05 3 4 19 05 3 4 19 05 Length std m 15 7 5 7 5 Max length elevation m 15 12 5 15 12 5 15 12 5 Drain hose Inner Indoor Unit Outdoor Unit mm 22 22 22 22 22 22 Packing Dimension Indoor W H D inch mm 1635 751 378 1635 751 358 1635 751 378 Outdoor W H D inch mm 42 1 52 1 19 5 1070 1300 495 42 1 52 1 19 5 1070 1300 495 42 1 52 1 19 5 1070 1300 495 Stuffing Quantity With Without S Parts 20 40ft 21 44 21 45 21 44 6 LGE Internal Use Only Dimensions 1 Indoor Unit 36K BTU h 1550 1362 236 42K BTU h 1550 1362 236 48K BTU h 1550 1362 272 60K BTU h 1550 1362 292 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 Outdoor Unit 42K 48K 60K 36K 60K 900 1 220 370 48K 900 1 220 370 42K 900 1 220 370 36K 870 800 320 MODEL DIM W mm H mm mm D LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Refrigeration Cycle Diagram e COOLING ONLY LV C362FLAQ 422 0 LV C482GLAO0 LV C602HLAO LV C48BGLAO LV C60BHLAO INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE LIQUID SIDE 56 EXCHANGER
19. and service purposes LGE Internal Use Only Installation of Indoor Outdoor Unit 1 Selection of the best location 1 Indoor unit There should not be any heat source or steam near i the unit There should not be any obstacles to prevent the air circulation 300 300 300mm A place where air circulation in the room will be mm mm or more geod Service space when the unit is mounted A place where drainage can be easily obtained under the celling A place where noise prevention is taken into consid eration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles 100mm or more 300 300 mm mm Service space when the unit is mounted on the floor wall 2 Outdoor unit If an awning is built over the unit to prevent direct More than sunlight or rain exposure be careful that heat radi ation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles More than 30cm More than 70cm 3 Piping length and the elevation Pipe Size Additi i Capa Diameter 0 Length A m Elevation B m Indoor unit Gas Liquid Standard Max Standard Max g m 36K BTU h 5 8 3 8 75 15 5 10 30 42K BTU h
20. and to inject R22 for leakage test The valve of charging hose must be closed before being connected 6 After closing the valve of charging hose disconnect the tank and connect the vacuum pump to charging hose and open the valve again for vacuuming 7 Turn on the vacuum pump until the pressure drops 2 3 Inject the 100 3000 R22 through the charging hose opening the valve P 9 8 After vacuuming disconnect the vacuum pump and 4 Check the joint part using a gas detector or soapy spindle Service water for leakage slightly for 30 sec and then open the spindle of On checking the service valve of main service port gas side with hexagonal wren hi is only for checki heth 2 2 9 Open the liquid side completely first and then the gas side fully in order Copyright 2008 LG Electronics Inc All right reserved 38 Only for training and service purposes LGE Internal Use Only 2 Disconnection on moving Outdoor unit Disconnection 1 Attach the charging hose manifold gage to the service port Connect the manifold gage once to the service port not stopping Stopping in the middle of process may cause the leakage 2 Purge the air in hose into special device such as retrieving tank opening the valve of charging hose gas side slightly and then close it tightly 3 Operate the air con
21. board individually according to the outdoor unit connection Ensure that the color of the wires of outdoor unit and the terminal No are the same as those of indoor unit respectively E 36K 42K 48K 60K Btu 10 220 Cooling only type 10 220V Terminals on the indoor unit 4 N 2 L 3 e 415 1 L DIN Terminals on the outdoor unit 1 n 21 3 4 5 POWER INPUT E 48K 60K Btu 30 220 Cooling only type 30 220V Terminals on the indoor unit 1 213 5 Terminals on the outdoor unit 1 2 3 POWER INPUT CAUTION The power cord connected to the outdoor unit should be The connecting cable connected to the indoor and outdoor complied with the following specifications Rubber unit should be complied with the following specifications insulation type HOSRN F approved by HAR or SAA Rubber insulation type HOSRN F approved by HAR or SAA NORMAL CROSS SECTIONAL AREA NORMAL Capacity 1 Phase Phase 1 CROSS SECTIONAL 6 KER aer AREA 0 75mme 36 42 48KBTUh 8 5mm 3 5 C 1 25mm 48K 60K 60K BTU h 8 5mm 5 5mm If the supply cord is damaged it must be replaced by a special cord or assembly availible from the manufacturer of its service agent Copyright 2008 LG Electronics Inc All right reserved 28 LGE Internal Use Onl Only for training and s
22. ck all joints E Add refrigerant if piping is over 7 5m Indoor Capacity Addition volume 36K BTU h 30 g m Factory charged 42K BTU h 35 g m 48K BTU h 40 g m 60K BTU h 45 g m Flared connection Outdoor Service valve Ball valve INSTALLATION OF OUT DOOR UNIT Select a location that satisfies the following conditions Install the unit firmly in place Bi Select the following location A place where the air conditioner can get good ventilation place where it shall not annoy the neighbors Above 30Cm A place where the unit shall be leveled and that can support the weight of unit and withstand its Above 30Cm Above 50Cm 4 Above 70Cm mn Keep a maintenance space Face of wall Copyright 92008 LG Electronics Inc All right reserved 23 Only for training and service purposes LGE Internal Use Only ELECTRICAL WIRING 2 electrical wiring work according to the electrical wiring All wiring must comply with local requirements Select a power source that is capable of supplying Circuit Breaker the current required by the air conditioner Main power source Use a recognized circuit breaker between the pow Switch box er source and the unit A disconnection device to adequately disconnect all supply lines must be fit ted Capacity of circuit breaker Outdoor Capacity 1 Phase Indoor C 36K BTU h 35A O 42K BTU h
23. ditioner for 10 15 min until cycle is stabilized 4 Close the spindle of service port liquid side high pressure and wait till pressure of gas side low pressure drops below Okgf cm 5 After the needle of gage indicates below 0 kgf cm close the valve of gas side quickly and turn off the power Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 39 6 Disconnect the piping between indoor and outdoor unit and then put on service cap to the service port LGE Internal Use Only 3 Gas Charging After Evacuation Indoor unit Check valve Charging cylinder Outdoor unit Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis connected from the vacuum 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 system can be charged in liquid state 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 refrigerant 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 specified amount of refrigerant it can be charged wi
24. e Outdoor unit BS fo Procedure 1 Confirm that both the liquid side and gas side 3 Open the valve Lo side on the charge set valves are set to the back seat and discharge the refrigerant until the gauge indicates 0 kg cm G 2 Connect the charge set to the 3 way valve s f there is no air in the refrigerant cycle the port pressure when the air conditioner is not Leave the valve on the charge set closed running is higher than 1 kg cm G discharge Connect the charge hose to the service port the refrigerant until the gauge indicates 0 5 to 1 kg cm G if this is the case it will not be necessary to apply a evacuatin Discharge the refrigerant gradually if it is discharged too suddenly the refrigeration oil will also be discharged Copyright 92008 LG Electronics Inc All right reserved 35 LGE Internal Use Onl Only for training and service purposes y 2 Evacuation All amount of refrigerant leaked Liquid side Outdoor unit 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 D
25. ed prior to resetting time or after replacing batteries LGE Internal Use Only 3 way Valve 1 Pumping down Outdoor unit Purge the air Procedure 1 Confirm that both liquid side and gas side 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 stems 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 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 liquid side valve to the closed position Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 6 Operate the air conditioner in cooling mode and stop it when the gauge indicates 1kg cm g 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating to 5kg cm g 8 Disconnect the charge set and mount the 2 way and 3 way valve s stem nuts and 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 33 LGE Internal Use Only 1 Re air purging Re ins
26. eight Outdoor kg lbs 72 158 7 90 198 3 90 198 3 Power Supply Cable No mm 3 8 5 3 8 5 3 8 5 Connecting Cable No mm 4 0 75 4 0 75 4 0 75 Connecting Tube Liquid Side inch mm 3 8 9 52 3 8 9 52 1 2 12 7 5 2 Socket Flare Gas Side inch mm 5 8 15 88 3 4 19 05 3 4 19 05 Length std m 7 5 7 5 7 5 5 Max length elevation m 15 12 5 15 12 5 15 12 5 Drain hose Inner Indoor Unit Outdoor Unit mm 22 22 22 22 22 22 Packing Dimension Indoor W H D inch mm 1635 751 293 1635 751 293 1635 751 358 Outdoor W H D inch mm 40 2 34 2 17 3 1020 870 440 42 1 52 1 19 5 1070 1300 495 42 1 52 1 19 5 1070 1300 495 Stuffing Quantity With Without S Parts 20 40ft 34 76 22 48 21 45 5 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Items Unit LV C602HLAO LV C48BGLAO LV C60BHLAO Cooling Capacity kcal hr W 15 120 17 584 12 096 14 067 15 120 17 584 Btu hr 60 000 48 000 60 000 Heating Capacity kcal hr W Btu hr Input Cooling Heating W 6 300 5 200 6 300 Running Current Cooling Heating A 29 14 5 18 2 Startin
27. erant piping bending in particular acute bending must be minimized to reduce piping resistance Bending is however necessary in some places by virtue of the installation position of devices auxiliary to the packaged air conditioner or of the building structure piping distance or finishing appearance If a more acute bend is required than that attainable by pipe bender perform brazing using ready made elbow Aside from this function brazing also serves to connect straight pipes generally using ready made sockets While brazing pro tect piping against heat with wet cloth to avoid damaging valve packing or burning thermal insulator with burner heat While brazing blow inert gas nitrogen gas or carbonic gas to prevent formation of oxidation film in cop per piping otherwise the refrigerant circuit will clog The blowing of nitrogen gas or carbonic gas through 3 way valves is described in the following 8 Refrigerant piping Flare piping When connecting piping be sure to keep piping dry keep piping away from water clean keep piping away from dust and airtight avoid refrigerant leakage When connecting piping on rainy days or making a through hole in wall take due care to prevent water or plas ter from entering piping ON CAUTION a This procedure is designed to prevent formation of oxidation film by filling piping with inert gas Note that excessive gas pressure will generate pinholes at brazed points Nitrogen gas S
28. ervice purposes y 3 Connecting the cable to the Outdoor Outdoor unit Unit 1 Remove the Cover control from the unit by loosening Terminal block a screw Connect the wires to the terminals on the control board individually as following Cord Clamper 222 E 7 D supply 2 Secure the cable onto the control board with the holder clamper 3 Refix the cover control to the original position with the screw 99 Cover control CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power specialized for the air conditioner As for the method of wiring be guided by the circuit diagram pasted on the inside of control box cover 2 Provide a circuit breaker switch between power source and the unit 3 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 are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Contirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relati
29. g Current Cooling Heating A 101 90 124 Power Supply 9 V Hz 1 220 60 3 220 60 3 220 60 2 Power Factor 9 98 8 92 6 89 3 amp EER Cooling kcal hr W W W 2 33 2 72 2 22 2 57 2 14 2 48 Btu hr W 9 25 8 8 8 5 C O P Heating W W kcal hr W Btu hr W Setting temperature range cool heat 18 30 18 30 18 30 Dehumidification Rate l h 7 67 5 2 7 1 Refrigerant Control Capillary Tube Capillary Tube Capillary Tube Refrigerant charge g oz type 4 050 145 4 R22 3 800 134 R22 4 680 165 R22 Indoor fan motor Output w Model KHF2G4002 KHF2G4001 KHF2G4002 No of Poles 4 4 4 Input 450 380 450 Running Current A 2 1 1 73 2 1 Capacitor yF Vac 10 0 370 7 5 370 10 0 370 Indoor Fan Type Centrifugal Centrifugal Centrifugal No Used Diameter EA inch mm 4 164 3 164 4 164 5 Motor Step 3 3 3 Indoor Fan RPM Cooling H M L rpm 1 450 1 150 1 000 1 470 1 240 1 040 1 450 1 150 1 000 Heating H M L rpm 2 Air Circulation Indoor H M L CMM CFM 37 81 27 36 32 27 37 31 27 Noise Level Sound Press 1m Indoor H M L dB A 3 61 59 57 59 57 55 61 59 57 Temperature Controller Thermistor Thermistor Thermistor Indoor Coil Tube Size OD inch mm 9 7 9 7 9 7 Fins per inch 13 13 13 of Rows amp Column 4R 12C 4R 10C 4R 12C Dimensions W H D Indoor inch mm 1 550 650 292 1 550 650 272 1 550 650 292 Net Weight indoor kg lbs 63 137 61 134 63 137 Compressor Locked Rotor Amp A 142 92 124 Type Reciprocating Reciprocating Scroll
30. gardless of room temperature and resets in 18 min During test operation if remote controller signal is received the unit operates as remote controller sets 10 Auto Restarting Operation 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 should be on the automatically operates in the mode on the memory Operation Mode that is kept on the memory State of Operation ON OFF Operation Mode Setting Temp Selected airflow Speed Sleep Timer Mode Remaining Time of Sleep Timer unit of hour If no input by the remote controller or no switching of the slide switch within 7 hr after the appliance operates by the Auto Restarting operation the appliance is forced to stop at the moment of 7 hr elapse Copyright 92008 LG Electronics Inc All right reserved 16 LGE Internal Use Onl Only for training and service purposes y Display Function Cooling Model Operation Indicator D Coolling Soft Dry Fan Heating Timer Indicator 9 Timer Mode Sleep Timer Indicator X Sleep Mode L Outdoor Unit Operation ny Outdoor Unit Operating Note For normal operation after checking by test mode you should press SW1 nine times for resetting or reconnect the power cord Copyright 92008 LG Electronics Inc All right reserved 17 Only for training
31. he wall by saddle or equivalent Copyright 92008 LG Electronics Inc All right reserved 30 Only for training and service purposes Seal a small opening around the pipings with gum type sealer 54 Pipings Connecting Trap is required to prevent water from entering into electrical parts Seal a small opening around the pipings with gum type sealer LGE Internal Use Only Air Purging of the Connecting Pipes and the Indoor Unit The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor 1 Confirm that both the liquid side valve and the gas side valve are set to the closed position 2 After connecting the piping check the joints for gas leakage with gas leak detector 3 Remove the service port nut and connect the gauge manifold and the vacuum pump to the service port by the charge hose Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg Remove the valve stem nuts and fully open the stems of the 2 way and 3 way valves with a hexagon wrench Tighten the valve stem nuts of the 2 way valve and 3 way valve Disconnect the charge hose fit the nut to the service port Tightening torque 1 8kg m Liquid side Outdoor unit 2 way valve 3 way valve Vaccum pump Eo
32. http biz lgservice com Ceiling amp Floor Type Air Conditioner MODEL LV C362FLA0 LV C422FLA0 LV C482GLA0 LV C602HLA0 LV C48BGLAO LV C60BHLAO CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Contents 3 Product Specifications Cooling only 5 us Me ALLE D RED E 7 Refrigeration Cycle Diagram 9 Wiring Diagram TEE 10 Operation DetailS tonus actuando nS bnc m ID RR Ee 13 Installation of Indoor Outdoor Unit 222 222111 18 Connecting Pipes to the Indoor 1 21 21242 44 2 25 Connecting Pipes to the Outdoor 22 2121 2 4 24 4 4 2 27 Checking the Drainage oo quae aide aite 27 Connecting Cables between Indoor Unit and Outdoor 28 Air Purging of the Connecting Pipes and the Indoor 31 Operation lt lt SEAN 32 S Way rcc 33 GVGlB oor oen LE MA dM d
33. isconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Copyright 92008 LG Electronics Inc All right reserved 36 Only for training and service purposes LGE Internal Use Only 3 Gas Charging After Evacuation Indoor unit Liquid side Open Outdoor unit 2 Way valve m Jy Gas side Open 3 Way Check valve valve Charging cylinder Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis connected from the vacuum pump to the valve at the bottom of the cylinder If you are using a gas cylinder also use a scale and reverse the cylinder so that the system 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 refrigerant 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 If the system can not be charged with the specified 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 sufficient wait approximately 1 minute and then repeat the procedure pumping down pin C
34. nly for training and service purposes Maintains the room temperature in accordance with the Setting Temp LGE Internal Use Only Remote Controller Operation ON OFF Operation Mode Selection Cooling Operation Mode Auto Operation Mode A Cooling model only Soft Dry Operation Mode Fan Speed Selection S L Med High CHAOS m mam 9 Room Temperature Display High 39 C LOW 11 C Temperature Setting TEMPERATURE LOW HIGH Down to 18 Cooling Up to 30 Setting the Time or Timer v 3 4 0 0 Timer Selection OR OFF ON OFF 0 0 Timer Setting SET 1 Timer Cancel CANCEL CO Cancel Sleep Mode Timer ON or Timer OFF Sleep Operation i 1 2 3 4 5 6 7hr Off Timer Airflow Direction Control N Fan Operation Mode i CO Fan Operates without cooling Cooling model only RESET Copyright 92008 LG Electronics Inc All right reserved 4 Only for training and service purposes LGE Internal Use Only Product Specifications Cooling amp Heating Items Unit LV C362FLA0 LV C422FLA0 LV C482GLA0 Cooling Capacity
35. odel LV C608HLAO OUTDOOR WIRING DIAGRAM INDOOR WIRING DIAGRAM F1 HT POWER SUPPLY 3 e 1 Red Wire LINE 4 4 L Fuse e 2 1 e 3 Red Wire E Blue Wire Red Wire COMM Black Wire HIGH Blue Wire MED Red Wire LOW 5 gH E o SWITCH BOX b TERMINAL BLOCK 30A White Wire NEUTRAL By e 92 LINN YOOGLNO OL SOCKET BLOWER Ground MOTOR White Wire Brown Wire Run Cap FREEZE SENSOR To the indoor unit GN YL 3854A20119T Copyright 2008 LG Electronics Inc All right reserved 12 Only for training and service purposes LGE Internal Use Only Operation Details 1 The function of main control 1 Time e min 90sec Delay Safety Control The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle Protection of compressor The 4 way valve is ceased for 30sec to prevent the refrigerant gas abnormal noise when the Heating operation is OFF or switched to the other operation mode while compress is off While compressor is running it takes 3 5 seconds to switch 2 Airflow Direction Control
36. on between cable length and thickness 9 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal func tion of a overload protection device Proper starting power is not given to the compressor Copyright 92008 LG Electronics Inc All right reserved 29 Only for training and service purposes LGE Internal Use Only 4 Form the pipings 1 Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands for the right pipings f you want to connect an additional drain hose the end of the drain outlet should keep distance from the ground Do not dip it into water and fix it on the wall to avoid swinging in the wind In case of the Outdoor unit being installed below position of the Indoor unit 2 Tape the Pipings drain hose and Connecting Cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent In case of the Outdoor Unit being installed above position of the Indoor Unit 2 Tape the Pipings and Connecting cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and make the trap prevent water from entering into the room 4 Fix the pipings onto t
37. on for fixing bolts Drill the hole for set anchor on the face of ceiling Insert the set anchor and washer onto the sus pension bolts for locking the suspension bolts on New building the ceiling Mount the suspension bolts to the set anchor firmly Secure the installation plates onto the suspension bolts adjust level roughly using nuts washers and spring washers N CAUTION ont Tighten the nut and bolt to prevent unit falling Sa pensio olts e Local supply Set anchor Plate washer M10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 or M10 Opening the side panel method Step1 Remove screw Step2 Lift side panel upward slightly Step3 To move side panel along arrow as shown Copyright 92008 LG Electronics Inc All right reserved 20 Only for training and service purposes LGE Internal Use Only CAUTION 1 Install declination of the indoor unit is very important for the drain of the convertible type air conditioner 2 Minimum thickness of the insulation for the connecting pipe shall be 7mm 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined to the bottomside Front of view E The unit must be horizontal or declined to the drain hose connected when finished installation Ceiling Drain hose Side of view The unit must be declined to the bo
38. opyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 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 discharged If 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 and 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 737 LGE Internal Use Only Cycle 1 Installation Connecting the piping between indoor and outdoor unit Outdoor unit Purge the air Installation 1 Connect the piping between the indoor and 5 If there is no leakage discharge R22 in piping outdoor unit firmly completely into tank for retrieving Incorrect connection may cause the leakage and Complete discharge is needed for vacuuming incomplete vacuuming If leakage is found please fasten the joint more tightly 2 Attach the charging hose manifold gage to the service port Charging hose is necessary to check the pressure
39. place relay or PCB Replace motor Replace or repair Replace switch or PCB Replace or repair Replace display or PCB Correct or operate once Change function Replace Replace or repair LGE Internal Use Only Problem 9 Indoor left right swing will not function 10 Power on but indoor fan lost Hi or Med or Low speed 11 Condenser fan short cycles on cooling 12 High discharge pressure cooling cycle 16 System not cooling 17 High suction low discharge pressure 18 Outdoor coil icing up 19 Indoor coil icing up Checklist Handset control Faulty swing motor Connector plug Relay on PCB Handset control Faulty motor Connector plug 3 relays on PCB Outdoor sensor Unit location Indoor sensor faulty Dirty condenser coil Gas overcharge Air recirculation Faulty motor Cap tube blocked PCB relay Low gas charge Reversing valve sticking Ambient temp low Dirty condenser coil Outdoor de ice sensor faulty PCB faulty Low gas charge heating Indoor set point too low Dirty filter Faulty indoor sensor PCB faulty Indoor fan not working Low gas charge Copyright 92008 LG Electronics Inc All right reserved 42 Only for training and service purposes Remedy List Change function Replace Replace or repair Replace relay or PCB Change function Replace Replace or repair Replace relay See control functions Check for air recirculation Replace Clean Reduce charge Move unit Replace Replace
40. r direction control button louver moves as following cycle MODEO MODE1 MODE2 MODE3 MODE4 MODE5 MODE6 MODE9 CLOSED 6 Natural wind by CHAOS logic For more fresh feeling than other fan speed mode press the indoor fan Speed Selector and set to CHAOS mode In this mode the wind blows like natural breeze by auto matically changing fan speed according to the CHAOS logic Intake Air temp Setting CHAOS Natural wind v Cooling on temp Setting temp 0 5 Setting temp Cooling off temp Setting temp 0 5 INDOOR FAN OOOOO OUTDOOR FAN COMP OOO OOOO COMPON lt gt OFF Setting fan speed CHAOS Natural wind LOW GRAPH of Natural wind by the CHAOS logis During Cooling operation Copyright 2008 LG Electronics Inc All right reserved 15 LGE Internal Use Only for training and service purposes y 7 Soft Dry Operation e During Soft Dry Operation the compressor ON temperature is the setting temperature plus 1 C the compres sor OFF temperature is the setting temperature minus 0 5
41. tallation Outdoor unit OPEN A Procedure 1 Confirm that both the liquid side valve and the gas side valve are set to the closed position 2 Connect the charge set and a gas cylinder to the service port of the 3 way valve Leave the valve on the gas cylinder closed 3 Air purging Open the valves on the gas cylinder and the charge set Purge the air by loosening the flare nut on the liquid side valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg cm g Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 6 Disconnect the charge set and the gas cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stem nuts and 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 CAUTION Do not leak the gas in the air during Air Purging 34 LGE Internal Use Only 2 Balance refrigerant of the 3 way valve Gas leakag
42. th a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 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 discharged If 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 and 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 40 LGE Internal Use Only Troubleshooting Problem 1 Nothing works 2 Power on but system will not function 3 Power on but indoor will not function 4 Power on but compressor will not function 5 Power on but outdoor fan will not function 6 Power on but indoor manual key will not function 7 Power on but indoor display will not function 8 Indoor up down louver will not function Checklist Power s
43. ttomside of the unit when finished installation Ceiling 7 Copyright 92008 LG Electronics Inc All right reserved 21 Only for training and service purposes LGE Internal Use Only Drill the piping hole with 70mm dia hole core drill WALL Piping hole should be slightly slant to the outdoor Indoor Outdoor side 5 7mm INSULATION OTHERS Insulate the joint and tubes completely THERMAL INSULATION All thermal insulation must comply with local requirement REFRIGERANT PIPE Insulate and tape both the gas piping and liquid piping Thermal insulator TESTANDCHECK Bi After all workings are finished check the working and operation Air distribution Is the air circulation good Drain Is the drainage smoothly and no sweating Gas leakage Is the piping connection correctly Wiring Is the wiring connection correctly Lock bolt Is the lock bolt of compressor loosened Copyright 92008 LG Electronics Inc All right reserved 22 Only for training and service purposes LGE Internal Use Only i h ice M lor llati REFRIGERANT PIPING 2 the work according to the Service Manual or Installation Use two spanners when connecting the refrigerant pipe to the unit Flared connection Union Make a bend with a radius as large as possible Perform air purge with R 22 or vacuum drying Use a seemliness tube When piping work is finished che
44. upply pressure 0 05 0 1kg cm G b When supplying inert gas be sure to open one end of piping Water enters Plaster enters Copyright 92008 LG Electronics Inc All right reserved 26 LGE Internal Use Onl Only for training and service purposes y Connecting Pipes to the Outdoor Unit 1 Connecting the pipes to the Outdoor unit 1 Align the center of the pipings and sufficiently tighten the flare nut with fingers 2 Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Outdoor unit Pipe size Torque 1 4 1 8kg m 3 8 4 2kg m 1 2 5 5kg m 5 8 6 6kg m Gas side piping 3 4 6 6kg m J Bigger Dia Liquid side piping Smaller Dia Checking the Drainage 1 Checking the Drainage 1 Remove the Air Filter To remove air filter take hold of tab and pull slightly upwards 2 Check the drainage Spray one or two glasses of water upon the evaporator Ensure that water flows drain hose of indoor unit without any leakage Copyright 92008 LG Electronics Inc All right reserved 27 Only for training and service purposes LGE Internal Use Only Connecting Cables between Indoor Unit and Outdoor Unit 1 Connecting cables to the Indoor Unit Connect the wires to the terminals on the control
45. upply to unit PCB fuse Interconnecting wiring PCB varistor Transformer Re set control switch Handset control Mode on hand set Power on fan terminal pcb Evaporator sensor Connector plug Motor overload Faulty motor Evaporator frozen Motor capacitor Room temp set point Relay on PCB Comp contactor Comp overload Indoor sensor de ice Comp internal overload Compressor terminals De ice sensor heating Ambient temp low Outdoor sensor Indoor coil too hot Fan relay on PCB Faulty motor Connector plug Faulty switch Connector plug Faulty display Reset switch position Handset control Faulty stepping motor Connector plug Copyright 92008 LG Electronics Inc All right reserved 41 Only for training and service purposes Remedy List Re set circuit breaker or change fuse Change fuse Look for break in cable or loose connection Replace PCB Replace PCB Re set Change batteries or hand set Change function No power check relay if faulty replace If short circuit replace Repair or replace Wait to reset and check amps Replace Defrost and check filter gas charge amp de ice sensor Replace Adjust on hand set Replace relay or PCB If power on contactor coil replace contactor Re set check amps and set point See control functions Allow comp to cool down check gas Check for good connection Wait for defrost to terminate Check gas pressure See control functions Clean filter Re
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