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1. WS 2 437212 222 SIS 20 Bs SASS 555 ISS 552201 52102 D 552116 4 RRA 64 Parts List Outdoor PART No ee DESCRIPTION TEE pest REMARKS 430410 BASE ASSEMBLY OUTDOOR 3041AR2205C 3041AR2205C R 435511 COVER ASSEMBLY CONTROL 3550AR2620P 3550AR2620P R 437210 PANEL ASSEMBLY FRONT 3721AR2658E 3721AR2658E R 437212 PANEL ASSEMBLY REAR 3721AR2734B 3721AR2734B R 447910 BARRIER ASSEMBLY OUTDOOR i 3 546810 MOTOR ASSEMBLY OUTDOOR 4681 AR1392H 4681AR1392H 550140 ISOLATOR COMP 4H00982E 4H00982E R 552102 1 TUBE CAPILLARY BENT 5210A20595X 5210A20595X R 552102 2 TUBE CAPILLARY BENT i 552111 TUBE ASSEMBLY CAPILLARY R 552116 ASSEMBLY REVERSING R 552201 VALVE CHECK R 552202 VALVE REVERSING R 552203 1 VALVE SERVICE 2H01890P 2H01890P R 552203 2 VALVE SERVICE 2H02479J 2H02479J R 554031 CONDENSER ASSEMBLY BENT 5403A20061D 5403A20061D R 554160 COMPRESSOR 2520UKRK1BA 2520UKRK
2. EH s Ye a lar En t eb L ENOILDNS MOLON aan GawonsNo SNIdd31S ans 4 i pr s s HANN moan NVJ HOOONI MOLD Nidda namo Exploded View and Replacement Parts List 1 Indoor Unit Parts List Indoor PART No POS TD DESCRIPTION REMARKS No LSN135G LSN1351G 131410 CHASSIS ASSEMBLY 3141A20007B 3141A20007B R 135080 DECORATION TOP 3508A20034A 3508A20034E R 135080 DECORATION BOTTOM 3508A20034B 3508A20034F R 135311 GRILLE ASSEMBLY DISCHARGE 3531A10137B 3531A10137E R 135314 GRILLE ASSEMBLY INLET MIRROR 3531A20118E 3531A20118E R BLUE 3531A20138X 3531A21010B R METAL 3531A20138Y 3531A21010A R 135312 GRILLE ASSEMBLY FRONT MIRROR 3531A10147J 3531A10147X R BLUE 3531A10158T 3531A21004X R METAL 3531A10158U 3531A21029A R 145200 LINK 4520A20008A 4520A20008A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A R 146811 MOTOR ASSEMBLY STEP 4681A20055B 4681A20055B R 152302 FILTER MECH A C 5230A20022A 5230A20022A R 159830 AIR CLEANER ASSEMBLY 5983A10006A 5983A10010A R 159901 VANE HOR
3. Qe Q QS m ZNROY mummmm so or oe g 19 Sx 10016 ZR iia RR Pog sem onm o lt s00 1 rx azoaz E 56 2 DISPLAY ASSEMBLY 6302A90003A TOP VIEW BOTTOM VIEW X A f 66 6 0 6 0 0 6 66 88 8 8 888 88 6 888 88 1 CN DISI LED MODULE e If W R
4. isu LC NE S U 4 Installation plate L a 4 m 1 1 70 70mm Left rear piping Right rear piping SZ fi U n u Installation plate m Si L Left rear piping Right rear piping CHASSIS Distance mm Grade A B C D SU 11 14 92 44 67 44 52 7k 9k 35 33 156 33 21 4 Drill a hole in the wall e Drill the piping hole with 70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side WALL Indoor Outdoor E Br N ilz to 2 Flaring Work and Connection of Piping 1 Flaring work Main cause for refrigerant leakage is due to defect in the flaring work Carry out correct flaring work using the following procedure Cut the pipes and the cable Use the piping kit accessory or pipes purchased locally Measure the distance between the indoor and the outdoor unit Cut the pipes a little longer than the measured distance e Cut the cable 1 5m longer than the pipe length 2 Burr removal Completely remove all burrs from the cut cross sec tion of pipe tube Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid drop ping burrs into the tubing Pipe 2 Point down gt 3 Putting nut Remove flare nuts attache
5. cable into the piping hole J 00 0 0 o9 9 When extending the drain hose at the indoor unit Connecting cable install the drain pipe Drain pipe 3 Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy connection later 4 Tape the drain hose and the connecting cable ree Connecting cable Indoor unit drain hose Vinyl tape narrow 7 Wrap the insulation material around the con necting portion Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material Bind them together with vinyl tape so that there is no gap 5 Indoor unit installation Hang the indoor unit from the hooks at the top of the installation plate Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall Plastic bands sulation material 1 Ed 7 Indoor unit Installation plate 8cm 24 Wrap the area which accommodates the rear piping housing section with vinyl tape Indoor Connection unit piping pipe Vinyl tape Wrap with vinyl tape wide Pipe Vinyl tape narrow Connecting cable Bundle the piping and drain hose together by wrap ping them with cloth tape over the range within which
6. 47 s Check the contact of CN VFD WH connector gt Check Display PWB Assembly Voltage between CN VFD WH DC 5V Check point Check the connecting circuit between CN VFD WH RO1L 51kQ CO1L 680pF MICOM PIN Check Receiver Assembly 3 Compressor Outdoor Fan are unable to drive Turn on Main Power d Operate Cooling Mode sk by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1 C at least d When in Air Circulation Mode Compressor Outdoor Fan is stopped d Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger EVA d When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped Check the related circuit of RY FAN e Check the indoor temperature sensor is disconnected or not About 10 at 25 C d 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 59 and GND DC5V DCOV Between ICO1M No 11 Below DC 1V and GND app About DC12
7. WEBSITE http lgservice com Room Air Conditioner SERVICE MANUAL CAUTION SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL MODEL LS 135GB GM GR LS 1351GB GM GR LS 1352GB GC GD GM GR GW LS 1202GB GC GD GM GR GW LS 1262GB GC GD GR GW C142CM CR Contents LG Model Nam u uuu u o et euet M tes 3 Mec RC a aN eet een 4 rna 7 DIMENSIONS NP err PERENNE 8 Refrigeration Cycle Diagram 001 10 Wiring uocem ene arena bonen 11 Operation etn een edel 12 Display Function eec 19 u Eeen ee 20 Operati ri s M te Meu OO 33 Disassembly of the parts Indoor Unil a 34 2 Way 3 Way ValVe 37 Cycle Troubleshooting Guides 45 Electronic Parts Troubleshooting 2 2 24 2 4 46 Electronic Control DEVICE o ee tend dee ec ee 55 5 Diagram sc 59 Exploded View Replacement Parts 15 60 LG Model
8. Works Shaft position Shaft position Service port Closed Closed Closed with valve with valve cap with cap Air purging Open Closed Open Installation counter clockwise clockwise push pin or with vacumm pump Closed Rete with valve cap with valve cap with cap Pumping down Closed Open Open Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open Open Servicing with charging cylinder Gas charging Open Open Open Servicing with charging cylinder Pressure check Open Servicing Open Open with charging cylinder Gas releasin Open Servicing 1 Open Open with charging cylinder 37 1 Air purging Only 22 Model Required tools hexagonal wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak detector The additional gas for air purging has been charged in the outdoor unit However if the flare connections have not be done correctly and there gas leaks a gas cylinder and the charge set will be needed The air in the indoor unit and in the piping must be purged If air remains in the refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction Outdoor unit Service port nut Be sure using a torque wrench to tighten the service port nut after using the service port so that it prevents the g
9. eOII IIIIIIIIIIOIIIIIIIIUIIII9IIIIWI III Fan Speed High Lights up when Fan speed is High gt Fan Speed Chaos Lights up when Fan speed is Chaos ril fc Desire temperature For cooling dehumidificationheating modes it display Desired temperature indicator Cooling 18 30 Al Auto Operation Dehumidification 18 30 C Jet Cool Heating 16 30 Lo Test Mode C1 Indoor pipe sensor error Desire temperature Icon Indoor temperature Icon Remote Control Operation ON OFF O 2 Operation Mode Selection OX Cooling Operation Mode sk Auto Operation model only Healthy Dehumidification Operation Mode Heating Operation Mode xt Fan Speed Selection p L M High HH Low II vagy Room Temperature Checking High 39 C lt _ gt Low 11 C Temperature Setting LOW HIH Cooling Down to 18 Heating Down to 16 G Up to 30 C Up to 30 C JET COOL PLASMA Optional e Setting the Time or Timer Timer Selection CO OFFON OFF a 0ON ON OFF Timer Setting SE Timer Cancel CANCEL Cancel Sleep Mode Timer ON or Timer OFF Sleep Operation e 1 2 8 4 5 6 7 Off Timer Airflow Direction Control c RESET Circulation AUTO CL
10. Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been prop erly 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 A CAUTION Pressure gauge 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 Charge hose e Pressurize the system to no more than 150 PS I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soap Nitrogen gas cylinder in vertical standing position A CAUTION avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position 30 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
11. 2003 1 2 3 4 5 6 7 8 9 10 Code Type Code of Model Meaning 1 Producing Center A Z L Chang won R22 N India Refrigerant Chang won R410A 7 Brazil Chang won R407C D Indonesia T China M Mexico K Turkey R22 V Vietnam E Turkey R410A S Out Sourcing H Thailand 2 Product Type A Z S Split Type Air Conditioner 3 Cooling Heating Inverter A Z Cooling only V AC Inverter C O H Heat pump N AC Inverter H P X C O E Heater Q DC Inverter C O Z H P E Heater W DC Inverter H P 4 5 Capacity 0 9 Cooling Heating Capacity Ex 09 gt 9 000 Btu h 6 Electric Range 1 9 1 115V 60Hz A 220V 50Hz 3Phase A Z 2 220V 60Hz B 208 230V 60Hz 3Phase 3 208 230V 60Hz 575V 50Hz 3Phase 5 200 220V 50Hz D 440 460 60Hz 3Phase 6 220 240V 50Hz E 265V 60Hz 7 110V 50 60Hz F 200V 50 60Hz 8 380 415V 50Hz 9 380 415V 60Hz 7 Chassis A Z Name of Chassis of Unit Ex LSP gt SP Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z Basic A Basic 4Way B Plasma Filter C Plasma Filter 4 Way D Tele LCD E Tele LCD Nano plasma 4Way F Nano Plasma F A changeove A clean Low A G Nano Plasma F A changeove A clean 4way Low A H Tele LED 4way Internet J Plasma F 4Way Oxy generator K Nano Plasma F A changeove A clean L Nano Plasma F A changeove A clean 4way M Nano Plasma F A changeove A clean PTC N Nano Plasma F A changeove Autoclean 4way PTC P Nano Plasma F A
12. they fit into the rear piping housing section Pipe Drain hose Vinyl tape narrow Wrap with vinyl tape wide 8 Reroute the pipings and the drain hose across the back of the chassis Piping for passage through piping hole 9 Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassis 25 10 Indoor unit installation Remove the spacer Ensure that the hooks are properly seated on the installation plate by moving it left and right Connecting cable Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound CAUTION Installation Information For left piping Good case For left piping Follow the instruction below Press on the upper side of clamp A CAUTION 3 Connection of the pipes Outdoor Bad case Following bending type from right to left could cause problem 1 Align the center of the pipings and sufficiently f pipe d tighten the flare nut hand 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 Outside diameter Torque mm in
13. 3 way valve Liquid side 2 way valve 14 Btu Series mm 770 T Wm 540 245 T ram 287 l2 m 64 L3 m 518 L4 mm i L5 mii 100 Refrigeration Cycle Diagram 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER COMPRESSOR GAS SIDE 2 Cooling amp Heating Models INDOOR UNIT OUTDOOR UNIT CHECK VALVE Heating Model only 000 CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER VALVE Heating Model Only 10 Wiring Diagram 1 Indoor Unit LS 135GB GM GR LS 1351GB GM GR MAIN PCB ASM CN MOTOR TRIAC THERMISTOR DISPLAY STEP SH CAPA BL CN U D CN VFD CN TH1 2 CN TAB1 CNIR FUSE 4 AC250V T2A a CN HVB i TERMINAL BLOCK 9 9 2 6 zr CN MAIN FORCED n is OPERATON fO CONNECTOR Sw T gt PWB ASM
14. Cause of Trouble Description Defective compressor Current is low Defective 4 way reverse Figner Excessive amount of High pressure does not quickly Normal refrigerant rise at the beginning of operation Insufficient amount of Current is low Lower Higher refrigerant Leakage Clogging Current is low Notice 1 The suction pressure is usually R 22 4 5 6 0 kg cm G Cooling at normal condition R 410a 7 2 9 6 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 45 Electronic Parts Troubleshooting Guide 1 Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power l 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 About AC 220 240V 50Hz EL Primarily the operating condition of Micom is OK Main power s voltage Voltage applied to the unit Connecting method of Indoor Outdoor connecting cable Check PWB Assembly Fuse Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector Pattern damage Varistor ZNRO1J ZNRO2J gt Check the connection
15. N ay O35 CN TAB2 8 8 Q N 2 N C02U 55 CN T B1 RY COMP C01J 9 Onto 2 i L ZNROLJ O O ruse O 2 P NF01J RY FAN e o FO RY 4HAY JPOL o 3 lt 2 0 oqpo NIC CO2J o 8 s om o o8 ae ROZ 2 g 5 Mo b 9052 ag 80 os 5 5 8 3 m o OB 44 aw o m N pag 2 55 zi S 219 rs 9 amer 220 mee c 5 9o ICOSD Ws 8 1 o a 58595 85 oj RE r e CN CONCBL gt P13 JP15 p 0 LS 1352GB GC GD GM GR GW LS 1202GB GC GD GM GR GW LS 1262GB GC GD GR GW C142CM CR TOP VIEW PWB 6870A90177D PWB ASM 6871A10056 BOTTOM VIEW Ww Sy 988 NS w as 59 IC02M EY4 EY3 0
16. Used to start or stop the speed cooling Speed cooling operates super high fan speed in cooling mode CHAOS SWING BUTTON Used to stop or start louver movement and set the desired up down airflow direction 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 BUTTON Used to set the timer when the desired time is obtained and to cancel the Timer operation SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature PLASMA OPTIONAL Used to start or stop the plasma purification func tion HORIZONTAL AIRFLOW DIRECTION CON TROL BUTTON NOT ON ALL MODELS Used to set the desired horizontal airflow direc tion RESET BUTTON Used prior to resetting time or after replacing bat teries 2nd F Button Used prior to using modes printed in blue at the bottom of buttons AUTO CLEAN Used to set Auto Clean mode LED LUMINOSITY Used to adjust LED luminosity x x 33 Disassembly of the parts Indoor unit Warning Disconnect the unit from power supply before making any checks Be sure the power switch is set to OFF To remove the Grille from the Chassis Hold up Inlet Grille Horizentally To remove the Gril
17. the air from the manifold hose using the refrigerant gas Close the liquid side service valve all the way in Turn on the unit s operating switch and start the cooling operation When the low pressure gauge reading becomes 1 to 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 Name and Function Remote Control The remote control transmits the signals to the system transmitter EB 988 GRADE an 9 MR KORE sasa VERA EES men Flip up door opened Operation Mode Cooling Operation UF Auto Operation UF Healthy Dehumidification Operation 6 Heating Operation Cooling Model lt Heat Pump 4 START STOP BUTTON EF Operation starts when this button is pressed and gt stops when the button is pressed again d OPERATION MODE SELECTION BUTTON p Used to select the operation mode ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low medium high and CHAOS JET COOL
18. 135312 GRILLE ASSEMBLY FRONT INDOOR MIRRIOR 3531A20284V 3531A20287V 3531 A20284V R BLUE 3531A20284T 3531A20287T 3531 A20284T R WHITE 3531420284 3531A20287X 3531 A20284X R WOOD 3531A20284U 3531A20287U 35314202840 R METAL 3531A20284W 3531A20287W R CHERRY 3531A20284Y 3531A20287Y 3531 A20284Y R 135314 GRILLE ASSEMBLY INLET MIRRIOR 3531A20285E 3531A20286A 3531 A20285E R BLUE 3531A20285B 3531 A20286B 3531 20285 R WHITE 3531 202850 3531A20286E 3531 202850 WOOD 3531A20285C 3531A20286D 3531A20285C R METAL 3531A20285A 3531A20286C R CHERRY 3531A20285F 3531A20286F 3531A20285F R 145200 LINK 4520A20008A 4520 20008 4520A20008A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A 4681A20055A R 146811 MOTOR ASSEMBLY STEP 4681A20055B 4681A20055B 4681 20055 R 152302 FILTER MECH A C 5230A20022A 5230A20033A 5230A20022A R 159830 AIR CLEANER ASSEMBLY 5983A20010K 5983A10014F 5983A20010K R 159901 VANE HORIZONTAL 5990A20015B 5990A20022B 5990A20015B R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20486J 4995A20375R 4995A20486J R 263230 THERMISTOR ASSEMBLY 6323A20004H 6323A20004A 6323A20004H R 264110 POWER CORD ASSEMBLY 3H03671M 3H03671F 3H03671M R 266090 H V ASSEMBLY 6609A10005D 6609A10005E 6609A10005D R 267110 REMOTE CONTROLLER ASSEMBLY 6711420091 6711A20091K 6711A20091J R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20463D 6871 20463 6871A20463D R 268714 PWB P
19. A B 7K 14K 10 5 Grade 2 Outdoor unit If an awning is built over the unit to prevent direct sun light or rain exposure make sure that heat radiation If case more than 5m from the condenser is not restricted CAUTION Ensure that the space around the back and sides is Capacity is based on standard length and maximum more than 10cm The front of the unit should have allowance length is on the basis of reliability more than 70cm of space Oil trap should be installed every 5 7 meters 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 minimum 20 3 How to fix installation plate The wall you select should be strong and solid enough to prevent vibration 1 Mount the installation plate on the wall with four type A screws If mounting the unit on a concrete wall use anchor bolts Mount the installation plate horizontally by aligning the centerline using a level Plate Type A screw 2 Measure the wall and mark the centerline It is also important to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typi cally Drilling the hole through the wall for piping connections must be done safely
20. The pressure of R 410A is 1 6 times higher than that of R 22 Thus the high pressure side gauge of charge set should be used higher pressure gauge of 50kg cm range 3 Re air purging Re installation 27 Gas cylinder EN Gas side Outdoor unit Procedure 1 Confirm that both the 2 way valve and the 3 way 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 2 way 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 the 2 way 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 to 5 kg cm g 40 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 ACAUTION Do not leak th
21. 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 preced ing 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 tubing 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 if tubing length is longer 10m 33 ft than 10m 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 vacuum pump 4 Finishing the job With a service valve wrench turn the valve stem of lig uid side valve counter clockwise to fully open the valve Turn the valve stem of gas side valve counter clock wise 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
22. are catching and interfering parts in the rotation radial of the left right Vertical Louver 51 7 When Inlet Grille does not operate Confirm that the Inlet Grille is normally geared with the shaft of Stepping Motor If the regular torque is detected when moving the Inlet Grille with hands Normal LL Check the connecting condition of CN SUC Connector Check the soldering condition on PWB of CN SUC Connector eg Check the operating circuit of the Inlet Grille e Confirm that there is DC 12V between pin RED of CN U D and GND Confirm that there is a soldering short at following terminals Between and of MICOM Between and of ICO1G Between 45 42 p and 40 of ICO1G lE If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Inlet Grille 52 8 When Heating does not operate Turn ON Main Power 2 Operate Heating Mode xx by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2 C at least JL 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 Check the related circuit of RY 4WAY Check the indoor room temperature is
23. detected and the setting temp is automatically set according to the intake air temperature 26 C lt Intake Air Temp gt 25 C 24 C lt Intake Intake Air Temp 26 C 2 Intake Air Temp 1 C 18 C lt Intake Intake Air Temp lt 24 C 2 Intake Air Temp 0 5 C Intake Air Temp lt 18 C gt 18 C 12 While in compressor off 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 dehumidifica tion operation and 4 min compressor off repeat Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C 10 min dehumidification operation the indoor fan operates with the low airflow speed E Heating Mode Operation When the intake air temp reaches 3 above the setting temp the compressor is turned off When below the setting temp the compressor is turned on Compressor ON Temp 2 Setting Temp Compressor OFF Temp 2 Setting Temp 3 C While in compressor on the indoor fan is off when the indoor pipe temp is below 20 C when above 28 C it operates with the low or setting airflow speed When the indoor pipe temp is between 20 C and 28 C it oper ates with Super Low 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 C when above 35 C it operates with the low airflow speed If overloaded while in heating m
24. disconnected or not about 10KQ at 25 C Check the indoor pipe temperature is disconnected or not about 5KQ at 25 C es 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 ON Fan OFF Between Micom Between Micom NO 59 and GND DESY 599 NO 53 and GND Des De Between 01 Between 02 NO 11 and GND Below DC 1V 529 12 GND Below DC 1V About DC 12V 4 way Relay Check point 4 way ON 4 way OFF Between Micom NO 52 and GND Between 02 1 and GND Below DC 1V About DC 12V 53 off Main Power 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 54 Electronic Control Device 1 MAIN P W B ASSEMBLY AC PART LS 135GB GM GR LS 1351GB GM GR TOP VIEW RY COMP gt CN TAB1 CO1J RO1J RY 02 RY 4WAY RY FAN CN ICYL 8010 Ed JPOS o O 68708901208 0018 Icora PB ASM 6871910099
25. gt Intake Air Temp 0 5 C 18 C lt Intake Air Temp lt 22 C gt Intake Air Temp Intake Air Temp lt 18 C 2 18 C When the 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 automatically selected according to the temperature B 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 C lt Inatake Air Temp 2 Fuzzy Operation for Cooling 21 C lt Inatake Air Temp lt 24 C 2 Fuzzy Operation for Dehumidification Inatake Air Temp 21 C 2 Fuzzy Operation for Heating If 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 Operation for Cooling According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 C or more belo
26. housing for contacting Connector related to CN TAB1 RY COMP NO 3 Connector related to CN MOTOR Connector contacting of Outdoor Fan Compressor Display PWB Assembly Check Main PCB Board Operation Check Items Content Remedy SMPS Transformer Indoor unit Input Voltage Output Voltage ZD02D About AC220V 240V 10 Check the power voltage About DC12V IC04D 7805 Output Indoor Outdoor unit DC 5V e ICO1A S7136 KIA7036 Reset IC OSCO1B Voltage of Micom No 36 4 5V over and Soldering condition Replace Trans Replace 10040 Replace faulty parts 46 2 The product is not operate with the remote control Turn on Main Power gt While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped Lt 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 Lt Lt Cause by the remote control Caused by other parts except the remote control When the mark 4 is displayed in LCD screen replace battery LL Check the connecting circuit between the remote controller MICOM No R17 2Q IR LED TR 16 2 2
27. loop with the cable for easy connection later 3 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 pipe Drain hose Connecting cable NOTE 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 4 Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the instal lation plate Ensure that the hooks are properly seat ed on the installation plate by moving it left and right Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots clicking sound 4 Connecting the pipings to the indoor unit and drain hose to drain pipe Align the center of the pipes and sufficiently tighten the flare nut by hand DP 0D 1 Indoor unit tubing Flare nut Pipes Tighten the flare nut with a wrench Connection pipe Indoor unit tubing Outside diameter Torque mm inch 06 35 1 4 1 8 09 52 3 8 4 2 012 7 1 2 5 5 When extending the drain at the indoor unit install th
28. of CN U D Connector Check the soldering condition on PWB of CN U D Connector Check the up down operating circuit of the Vertical Louver e Confirm that there is DC 12V between pin D Gray of CN U D and GND Confirm that there is a soldering short at following terminals Between 60 67 62 and 69 of MICOM Between 2 and 5 of ICO1M Between db 4 and of ICO1M If there no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the up down Vertical Louver 50 6 When left right Vertical Louver does not operate Confirm that the left right Vertical Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the left right Vertical Louver with hands Normal Check the connecting condition of CN L R Connector Check the soldering condition on PWB of CN L R Connector es Check the left right operating circuit of the Vertical Louver e Confirm that there is DC 12V between pin Gray of CN L R and GND Confirm that there is a soldering short at following terminals Between 69 65 66 and 6 of MICOM Between and of ICO2M Between b 45 and 46 of ICO2M Lt If there are no problems after above checks Confirm the assembly conditions that
29. 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 C 46 Cool ing or Heating 32 Intake temperature qO temperature 4 For reference the gas side pressure of optimum con dition is as below Cooling I Outside ambient The pressure of the gas side service valve R 22 35 95 4 5kg iom G 56 8 71 0 5 1 0 R 410A 35 95 8 5 9 2 120 135 5 10 NOTE If the actual pressure is higher than shown the system is most likely over charged and charge should be removed If the actual pressure 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 valve halfway and purge
30. short beep sounds 18 Display Function Signal Receptor Each Icon turns on when the unit is operated then the only Icon outline to be operated is bright EE ES X EY 29 00 5 KOE amp JET COOL PLASMA Cooling Mode Lights up during Cooling operation Outline Auto Operation Mode Lights up during Auto operation Outline penumicincatan Lights up during Healthy Dehumidification operation Outline Heating Mode Lights up during Heating operation Heat Pump model only Outline Defrost Mode Lights up during Defrost control or Hot Start in Heating operation Outline Air circulation Mode Lights up during Air Circulation operation Outline Sleep Mode Lights up during Sleep Mode operation Timer Mode Lights up during Timer operation Auto Cleaning Mode Lights up during Auto Cleaning reservation Jet Cool Mode Lights up during Jet Cool Operation Plasma Lights up during Plasma operation Fan Speed Low Lights up when Fan speed is low Ili Fan Speed Medium Lights up when Fan speed is Medium lI i mnm Speed High Lights up when Fan speed is High I IIIIIIIIIOIIUII WI gt Fan Speed Chaos Lights up when Fan speed is Chaos Desire temperature For cooling dehumidification heating modes it display Desired temperature indicator Cooling 18 30 Auto Operation Dehumidification 18 30 C Po Jet Cool Heating 16 30
31. 1BA R 559010 FAN ASSEMBLY PROPELLER 5900AR1119B 5900AR1119B R W0CZZ CAPACITOR DRAWING 2H01451P 2H01451P R 561410 O L P 6750U L033A 6750U L033A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20445A 4995A20445B R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz L Gservice com 65 LOCATION DESCRIPTION REMARKS No LSU1352G LSU1202G LSU1262G 430410 BASE ASSY OUTDOOR 3041AR2205C 3041AR2205C 3041AR2205C R 435511 COVER ASSEMBLY 3550AR2620P 3550AR2620P 3550AR2620P R 437210 PANEL ASSEMBLY FRONT SUB 3721AR2658E 3721AR2658E 3721AR2658E R 437212 PANEL ASSEMBLY REAR OUTDOOR 3721AR2734B 3721AR2734B 3721AR2734B R 546810 MOTOR ASSEMBLY OUTDOOR 4681AR1392H 4681AR1392H 4681AR1392H R 550140 ISOLATOR COMP 4H00982E 4H00982E 4H00982E R 552102 TUBE CAPILLARY BEND 5210A20595X 5210A20204G 5210A20595X R 554031 CONDENSER ASSEMBLY BENT 5403A20061D 5403A20061D 5403A20061D R 554160 COMPRESSOR SET 2520UKRK1BA 2520UKBK1AA 2520UKRK1BA R 559010 FAN ASSEMBLY PROPELLER 5900AR1119B 5900AR1119B 5900AR1119B R 561410 O L P 6750U L033A 67500 1008 6750U L033A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20445B 4995A20445D 4995A20445B R 552203 1 VALVE SERVICE 2 01890 2A00393K 2 01890 R 552203 2 VALVE SERVICE 2H02479J 2H02479J 2H02479J R W0CZZ CAPACITOR D
32. 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 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room Fix the piping onto the wall by saddle or equivalent Seal a small opening around the pipings with gum type sealer 29 5 Air Purging 1 Air purging Do leak 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 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 Air and moisture remaining in the refrigerant system have undesirable effects as 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 refrigera tion system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacu ated to remove any noncondensables and moisture from the system Indoor unit 2 Air purging with vacuum pump 1 Preparation
33. CB ASSEMBLY MAIN 6871A10056G 6871A10056N 6871A10056G R 342800 BEARING 4280A20004A 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20048E 4681A20103A 4681A20048E R 35211B TUBE ASSEMBLY TUBING 5211 7066 5211A30596A 5211 7066 R 352150 HOSE ASSEMBLY DRAIN 5251AR1222R 5251 1222 5251AR1222R R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20086D 5421A20086H 5421 200860 R 359011 FAN ASSEMBLY CROSS FLOW 5901A20016J 5901A20016H 5901A20016J R 668713 PWB PCB ASSEMBLY SUB 6871A20259A 6871A20259A 6871A20259A R 668713 PWB PCB ASSEMBLY SUB 6871A20258E 6871A20258E 6871A20258E R 733010 PLATE 1H00843A 3301A10005A 1 00843 R WOCZZ CAPACITOR DRAWING 3H01487K 3H01487A 3H01487K R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 62 LOCATION DESCRIPTION REMARKS No C142CR NU1 C142CM NU1 131410 CHASSIS ASSEMBLY 31414200078 31414200078 R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 35314101378 35314101378 R 135312 GRILLE ASSEMBLY FRONT INDOOR MIRRIOR 3531A20284Q 3531A20284R R METAL R 135314 GRILLE ASSEMBLY INLET MIRRIOR 3 R METAL 3531A20285E 3531 20285 R 145200 LINK 4520A20008A 4520A20008A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A R 146811 MOTOR ASSEMBLY STEP 4681A20055B 4681A20055B R 152302 F
34. EAN CO Fan Operates without cooling or heating eS Horizontal Airflow Direction Control Button Optional 22 LED LUMINOSITY 9 Product References LS 135GB GM GR item Unit LS 1351GB GM GR Cooling Capacity Btu h 14 000 Heating Capacity Moisture Removal I h 1 5 Power Source V Hz 10 220 240V 50Hz Air Circulation musu n m min id Outdoor 26 Noise Level pee dB A 3 48 hout Cooling Wi 1 140 Heating Running Cooling A 5 3 Current Heating Cooling Btu hW 12 28 C O P Heating Indoor 10 8 Motor Output W m Dimensions Indoor 1 030 x 290 x 153 WxHxD U 770 x 540 x 245 Indoor 9 5 Net Weight Outdoor kg Refrigerant g R 410A 730 Airflow Direction Control Up amp Down L C D Wireless Liquid 1 4 6 35 Service Valve TUM inch mm 12127 Sleeping Operation Drain Hose Connecting Cable 1 0mm Power Cord 1 0mm NOTE Please refer to Label Quality on the product since this specification may be changed for improving performance Dimensions 1 Indoor Unit 14K Btu Series 1030 290 153 2 Outdoor Unit Gas side
35. ECEIVER 2 e m 888 68208901788 ere B ASM 6871620463 u 57 3 SUB P W B ASSEMBLY 6871420259 2 7 e 3 MS 1991 1 6871A20258 TOP VIEW BOTTOM VIEW PWB 6870A90061K 1 CN VFD2 OUT CN S MI tact A CN STEP1 1 5 9 t5 5 x lt i LJ CN S W2 CONT CN S W3 12V 58 Schematic Diagram Hood avano TEE EA ET S x ori n 01005 75 soa 2015108 on n root icons OV ni 9 1o orno LN 2 20 dey Sa 224264864241402 621 WSV MS A zel ew se ve Ses zl EE n She E ss
36. ILTER MECH A C 5230A20022A 5230A20022A R 159830 AIR CLEANER ASSEMBLY 5983A20010G 5983A20010G R 159901 VANE HORIZONTAL 5990A20015B 5990A20015B R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20486G 4995A20486G R 263230 THERMISTOR ASSEMBLY 6323A20004H 6323A20004H R 264110 POWER CORD ASSEMBLY 6411A20015J 6411A20015J R 266090 H V ASSEMBLY 6609A10005D 6609A10005D R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20077U 6711A20077U R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20463D 6871A20463D R 268714 PWB PCB ASSEMBLY MAIN 6871A10056G 6871A10056G R 342800 BEARING 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20048E 4681A20048E R 35211B TUBE ASSEMBLY TUBING 5211AR7066N 5211AR7066N R 352150 HOSE ASSEMBLY DRAIN 5251AR1222R 5251AR1222R R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20086D 5421A20086D R 359011 FAN ASSEMBLY CROSS FLOW 5901420016 5901420016 R 668713 PWB PCB ASSEMBLY SUB 6871A20259A 6871A20259A R 668713 PWB PCB ASSEMBLY SUB 6871A20258E 6871A20258E R 733010 PLATE 1H00843A 1H00843A R WOCZZ CAPACITOR DRAWING 3H01487K 3H01487K R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 63 2 Outdoor unit
37. IZONTAL 5990A20015B 5990A20015B R 237900 WINDOW DISPLAY 3790A20037F 3790A20083A R 249951 CONTROL BOX ASSEMBLY 4995A20287F 4995A20287R R 263230 DIGITRON 6302A90003A 6302A90003A R 263230 THERMISTOR ASSEMBLY 6323A20004H 6323A20004H R 264110 POWER CORD ASSEMBLY 3H03671M 3H03671M R 266090 H V ASSEMBLY 6609A10005A 6609A10005A R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20073H 6711A20073H R 268714 PWB PCB ASSEMBLY MAIN 6871A10099C 6871A10099C R 342800 BEARING 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20048E 4681A20048E R 35211B TUBE ASSEMBLY TUBING 5211AR7066N 5211AR7066N R 352150 HOSE ASSEMBLY DRAIN 5251AR1222R 5251AR1222R R 354210 EVAPORATOR ASSEMBLY FINAL 5421A20086D 5421A20086D R 359011 FAN ASSEMBLY CROSS FLOW 5901A20016A 5901A20016A R 668713 PWB ASSEMBLY SUB 6871A20258B 6871A20258B R 668713 PWB ASSEMBLY SUB 6871A20259A 6871A20259A R 73310 PLATE 1H00843A 1H00843A R WOCZZ CAPACITOR DRAWING 3H01487A 3H01487A R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz L Gservice com 61 DESCRIPTION REMARKS No LSN1352G LSN1202G LSN1262G 131410 CHASSIS ASSEMBLY 3141A20007B 3141A20009B 3141A20007B R 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531 10137 3531A20184B 3531A10137E R
38. Lo Test Mode C1 Indoor pipe sensor error Desire temperature Icon Indoor temperature Icon 19 Installation 1 Installation of indoor Outdoor unit 1 Selection of the best location Select a place so that the warm air and noise from the 1 Indoor unit air conditioner do not disturb neighbors Do not have any heat or steam near the unit than 60cm Select a place where there are no obstacles in front of gt the unit More than 10cm Make sure that condensation drainage can be conve niently routed away Do not install near a doorway Ensure that the space around the left and right of the More than 70cm unit is more than The unit should be installed as high on the wall as possible allowing a minimum of More than 10cm lt from ceiling T 2 Piping length and elevation Use stud finder to locate studs to prevent unneces Piping length and e sary damage to the wall Capacity Pipe Size Standard Max Max Additional Length Elevation Length Refrigerant GAS LIQUID Bim am n 3 8 09 52 1 4 26 35 4 or 7 5 7 15 20 More than B AN 7k 14k D than A 129127 1 4 06 35 40775 7 15 20 Outdoor unit 711 indoor unit Outdoor unit CAUTION JN J Install the indoor unit on the wall where the height from the floors more than 2 3 meters Clearance cm
39. RAWING 2H01451P 6120AR2194G 2H01451P R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 66 LOCATION PART No DESCRIPTION REMARKS No C142CR UU1 C142CM 430410 BASE ASSY OUTDOOR 3041AR2205C 3041AR2205C R 435511 COVER ASSEMBLY CONTROL OUTDOOR 3550AR2620P 3550AR2620P R 437210 PANEL ASSEMBLY FRONT SUB 3721AR2658E 3721AR2658E R 437212 PANEL ASSEMBLY REAR OUTDOOR 3721AR2734B 3721AR2734B R 546810 MOTOR ASSEMBLY OUTDOOR 4681AR1392H 4681AR1392H R 550140 ISOLATOR COMP 4H00982E 4H00982E R 552102 TUBE CAPILLARY BEND 5210A20595X 5210A20595X R 554031 CONDENSER ASSEMBLY BENT 5403A20061D 5403A20061D R 554160 COMPRESSOR SET 2520UKRK1BA 2520UKRK1BA R 559010 FAN ASSEMBLY PROPELLER 5900AR1119B 5900AR1119B R 561410 O L P 6750U L033A 6750U L033A R 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20445A 4995A20445A R 552203 1 VALVE SERVICE 2 01890 2 01890 R 552203 2 VALVE SERVICE 2H02479J 2H02479J R W0CZZ CAPACITOR DRAWING 2H01451P 2H01451P R NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz L Gservice com 67 LG Electronics Inc P No 3828A30114B Printed in Korea
40. TO OUTDOOR UNIT CN STEP1 toi SUC SUC INDOOR WIRING DIAGRAM 080 3854A20238Y 2 Outdoor Unit PILLAR TERMINAL TO INDOOR UNIT OUTDOOR WIRING DIAGRAM 3854A30077E 11 LS 1352GB GC GD GM GR GW LS 1202GB GC GD GM GR GW LS 1262GB GC GD GR GW C142CM CR CN MOTOR MAIN PCB ASM TRIAC THERMISTOR DISPLAY CN U D WH CN DISP1 CN THI WH 2 1 EN URED 4 a AC250V T2A RY COMP CN HVB r HE EH TERMINAL BLOCK FORCED OPERATON SW TO OUTDOOR UNIT 9 0 CN MAIN SUC SUC STEP STEP MOTOR 1 WWOTOR2 CONNECTOR PWB ASM LIMIT S W 1 CN STEP CN STEP2 Eo1 49t 3854A20576B Operation Details 1 MAIN UNIT FUNCTION DISPLAY 1 C O Model Operation Indicator ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Sleep Timer Indicator ON while in sleep timer mode OFF when sleep timer cancel or appliance operati
41. V d Turn off Main Power ud 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 48 4 When indoor Fan does not operate Turn off Main power d Check the connection of CN MOTOR d Check the Fan Motor d Check the Fuse AC250V T2A d Check the related circuit of indoor Fan Motor The pin NO 58 of Micom and the part for driving TRIAC the input and output signal of ICO1M PIN NO 7 10 Check the pattern Check the TRIAC TRIAC Open Indoor Fan Motor never operate TRIAC short Indoor Fan Motor always operates in case of ON or OFF d Turn ON Main Power d Check the TRIAC high speed operation by remote control The Indoor Fan Motor is connected The voltage of PIN NO 1 Black and 3 Black of CN MOTOR About AC 180V over About AC 50V below TRIAC is not damaged TRIAC change 49 5 When up down Vertical Louver does not operate Confirm that the up down Vertical Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the up down Vertical Louver with hands Normal Check the connecting condition
42. as leakage from the refrigeration cycle CAUTION Do not leak the gas in the air during Air purging Procedure 1 Recheck the piping connections 2 Open the valve stem of the 2 way valve counterclockwise approximately 90 wait 10 seconds and then set it to closed position Be sure to use a hexagonal wrench to operate the valve stem 3 Check for gas leakage Check the flare connections for gas leakage 4 Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Repeat this three times 5 Use torque wrench to tighten the service port nut to a torque of 1 8kg cm 38 6 Set the 3 way valve to the back seat 7 Mount the valve stem nuts to the 2 way and 3 way valves 8 Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way valve s stem nuts and from the service port nut A Caution If gas leakage are discovered in step 3 above take the following mesures If the gas leaks stop when the piping connections are tightened further continue working from step 4 If the gas leaks do not stop when the connections are retightened repair the location of the leak discharge all of the gas through the service port and then recharge with the specifie
43. 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 auto by the input of the airflow speed selection key on the remote control E On Timer Operation When the set time is reached after the time is input by the remote control 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 If the appliance is operating at the time set by the timer the operation continues 15 E Off Timer Operation When the set time is reached after the time is input by the remote control 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 If the appliance is on pause at the time set by the timer the pause continues E Off Timer lt gt On Timer Operation When the set time is reached after the on off time is input by the remote control the on off timer operation is carried out according to the set time Sleep Timer Operation When the sleep time is reached after lt 1 2 3 4 5 6 7 0 cancel hr gt is input by the remote control while in appli ance operation the operation of the appliance stops While th
44. ch kg m 06 35 1 4 1 8 09 52 3 8 4 2 912 7 1 2 5 5 015 88 5 8 6 6 019 05 3 4 6 6 Outdoor unit Gas side piping Bigger diameter Liquid side piping Smaller diameter Torque wrench 26 3 Connecting The Cable Between Indoor Unit and Outdoor Unit 1 Connect the cable to the Indoor unit Connect the cable to the indoor unit by connecting the wires to the terminals on the control board in 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 The earth wire should be longer than the common wires When installing refer to the circuit diagram on the Control Box of Indoor Unit When installing refer to the wiring diagram on the Control Cover Inside Outdoor Unit A CAUTION The above circuit diagram is subject to change with out notice Be sure to connect wires according to the wiring dia gram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by refer ring the wiring diagram If a power plug is not to be used provide a circuit breaker between power source and the unit as shown below Main power source Circuit Breaker Use a circuit breaker or time delay fuse Air Conditioner A CAUTION The power cord connected to the A unit should be complied with the following s
45. changeove A clean 4way Low A PTC Q Negative ION A Clean R Nano Plasma Negative ION A Clean 5 4way Nano Plasma F Negative ION Healthy dehumidification A Clean T Nano Plasma F 4Way A changeove A clean U 10 Serial No 1 9 LG Model Development Serial No ARTCOOL COLOR Mirror White Blue Wood Metal Cherry 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 sec at the starting Time Delay Safety Control Restarting is inhibited for approx 3 minutes Indoor Fan Speed Control High Med Low CHAOS JET COOL Soft Dry Operation Mode Intermittent operation of fan at low speed Sleep Mode Auto Control 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 Airflow Direction Control The louver can be set at the desired position or swing up and down automatically The fan is switched to low Cooling med Heating speed The fan speed is automatically switched from high to low speed Maintains the room temperature in accordance with the Setting Temp PLASMA The function will be operated while in any operat
46. cording to the intake air temp at that time 26 lt Intake Air Temp 225 24 lt Intake Air lt 26 gt Intake Air Temp 1 C 22 lt Intake Air Temp lt 24 C 2 Intake Air Temp 0 5 C 18 lt Intake Air Temp lt 22 C gt Intake Air Temp Intake Air Temp lt 18 C 218 When the 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 repeats the low airflow speed or pause as in dehumidification operation 3 Fuzzy Operation for Heating 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 gt Setting Temp Compressor OFF Temp gt Setting Temp 3 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 CxIntake Air Temp 2 Intake Air Temp 0 5 C Intake Air Temp lt 20 C 220 When the 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
47. 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 are 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 27 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 function 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 28 4 Checking the Drainage and Forming the Pipings 1 Checking the drainage 1 To remove the front panel from the indoor unit Set the air direction louvers up and down to the posi tion horizontally by hand Remove the securing screws that retain the front pan el Pull the lower left and r
48. d amount of gas from a gas cylinder 2 Pumping down Purge the air Outdoor unit 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 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 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 Refrigerant must be recovered Don t vent the Refrigerant in the atmosphere 5 Set the 2 way valve to the closed position 39 6 Operate the air conditioner at the cooling cycle 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 N CAUTION Do not use the existing charge set for R 22 It is necessary to use new charge set for R 410A
49. d to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flare nut Copper tube 4 Flaring work Firmly hold copper pipe in a die in the dimension shown in the table above Camp handle Red arrow mark 22 Carry out flaring work using flaring tool as shown below Outside diameter A mm inch mm 06 35 1 4 0 0 5 09 52 3 8 0 0 5 12 7 1 2 0 0 5 15 88 5 8 0 1 0 19 05 3 4 1 0 1 3 5 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared sec tion and re flare it Smooth all round s x is shiny without scratches Improper flaring Y Y Inclined Surface Cracked Uneven damaged thickness Even length all round 2 Connection of piping Indoor Preparing the indoor unit s piping and drain hose for installation through the wall Remove the plastic tubing retainer see illustration below and pull the tubing and drain hose away from chassis Replace the plastic tubing holder in the original position Optional For right rear piping 1 Route the indoor tubing and the drain hose in the direction of rear right Drain hose 2 Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole Do not connect the cable to the indoor unit Make a small
50. e 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 C 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 airflow speed of the indoor fan is set to the medium Chaos Swing Mode By the Chaos Swing key input the upper lower vane automatically operates with the Chaos Swing or they are fixed to the desired direction While in Chaos Swing mode the angles of cooling and heating cycle operations are different Cooling Mode gt Heating Mode gt CLOSED B Chaos Natural Wind Mode 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 16 Jet Cool Mode Operation C O Model If the Jet Cool key is input at any operation mode while in appliance operation the Jet Cool mode operates In the Jet Cool mode the indoor fan is operated at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operati
51. e drain pipe Indoor unit drain hose Adhesive Vinyl tape narrow 5 Wrap the insulation material around the connecting portion Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material P boc ata CC jee CC Wrap the area which accommodates the rear piping housing section with vinyl tape Connection Indoor pipe unit pipe Vinyl tape Wrap with vinyl tape wide Connecting cable Vinyl tape narrow 23 6 Connecting the pipings to the indoor unit and the drain hose to drain pipe Align the center of the pipes and sufficiently tighten Wrap with vinyl tape the flare nut by hand Pipe X E 4255 0D Indoor unit tubing Flare nut Pipes Bundle the piping and drain hose together by wrap ping them with vinyl tape for enough to cover where they fit into the rear piping housing section Vinyl tape wide Drain hose e Tighten the flare nut with a wrench For left rear piping 4 wrench fixed 8 2 1 Route the indoor tubing and the drain to the required piping hole position Wrench Indoor unit tubing Outside diameter Torque mm inch kg m 06 35 1 4 1 8 2 Insert the piping drain and the connecting 09 52 3 8 4 2 012 7 1 2 5 5
52. e gas in the air during Air Purging 4 Balance refrigerant of the 2 way 3 way valves Gas leakage Indoor unit Outdoor unit Procedure 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge 1 Confirm that both the 2 way and 3 way valves indicates 0 kg cm G are set to the back seat If there is no air in the refrigerant cycle the pressure when the air conditioner is not 2 Connect the charge set to the 3 way valve s running is higher than 1 ko cm G discharge port the refrigerant until the gauge indicates 0 5 to 1 Leave the valve on the charge set closed kg cmeG if this is the case it will not be Connect the charge hose with the push pin to necessary to apply a evacuatin the service port Discharge the refrigerant gradually if it is discharged too suddenly the refrigeration oil will also be discharged 41 5 Evacuation Outdoor unit Procedure 1 Connect the vacuum pump to the charge set s center hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum
53. forced operation the key input by the remote control has no effect and the buzzer sounds 10 times to indicate the forced operation 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 open the front panel upward and Press the power button let it be pressed for about 3 seconds f you want to stop the operation re press the button B Auto restart In 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 B Air Cleaner Operation When an 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 When an 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 17 E Remote Control Operat
54. ight sides of the grille toward you and lift it off SNS 2 To check the drainage Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Connecting area drain hose m Q lt checking 3 Drain piping e The drain hose should point downward for easy drain flow Downward slope Do not make drain piping x x Accumulated Do notralse drain water Air 1 i i 4 Water Water Water 9 leakage leakage leakage Tipofdrainhose dipped in water Less than 50mm gap Ditch 2 Form the piping 1 Form the piping by wrapping the connecting por tion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes If you want to connect an additional drain hose the end of the drain outlet should be routed above the ground Secure the drain hose appropriately 2 In cases where the outdoor 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 E Pipings B Connecting 5 Trap is required to prevent water from entering into electrical parts
55. 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 3 way valve 2 way valve Open Hexagonal wrench Cap Outdoor unit lt lt 6 Test Running Prepare remote control 1 Check that all tubing and wiring have been properly connected 2 Check that the gas and liquid side service valves are fully open 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 NOTE Use 2 AAA 1 5volt batteries Do not use recharge able batteries Remove the batteries from the remote control if the system is not going to be used for a long time 2 Settlement of outdoor unit e Anchor the outdoor unit with a bolt and nut e 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 In the case when the vibration of the unit is conveyed to the hose secure the unit with an anti vibration bushing Bolt Tubing connection 3 Evaluation
56. ion Mode When the remote control is selected by the slide switch on the main unit the appliance operates according to the input by the remote control E Protection of the evaporator pipe from frosting If the indoor pipe temp is below 0 C in 7 min after the compressor operates without any pause while in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the condition of the room temperature Auto Clean Open the door on the remote control Press the Auto Clean Button Close the door on the remote control Now each time that you press the start stop button the Air conditioner operates clean function automatically Display Luminosity The Display Luminosity can be adjusted by using the remote control Press the start stop button to start the unit Open the door on the remote control press the 2ndF button and press display luminosity button Display will be dark Press the button again to set bright display Buzzer Sounding Operation When the appliance operation key is input by the remote control the short beep sounds When the appliance pause key is input by the remote control the long beep sounds When an except operation and pause key is input by the remote control the
57. ion mode with selecting the function The function is to be stopped while it is operating with selecting the function Defrost Deice control Heating Both the indoor and outdoor fan stops dur ing defrosting Hot start Control Heating The indoor fan stops until the evaporator pipe temperature will be reached at 28 C Signal Receptor Each Icon turns on when the unit is operated then the only Icon outline to be operated is bright DOHA 204400205 NIN gt JET COOL PLASMA J amp 89 ie HOPE E JET COOL PLASMA Cooling Mode Lights up during Cooling operation Outline Auto Operation Mode Lights up during Auto operation Outline heathy penumidification Lights up during Healthy Dehumidification operation Outline Mode Heating Mode Lights up during Heating operation Heat Pump model only Outline Defrost Mode Lights up during Defrost control or Hot Start in Heating operation Outline Air circulation Mode Lights up during Air Circulation operation Outline Sleep Mode Lights up during Sleep Mode operation Timer Mode Lights up during Timer operation Auto Cleaning Mode Lights up during Auto Cleaning reservation Jet Cool Mode Lights up during Jet Cool Operation Plasma Lights up during Plasma operation Fan Speed Low Lights up when Fan speed is low IOIOI IIIIIIIII ii Fan Speed Medium Lights up when Fan speed is Medium
58. le pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward seperate connecter assembly and than to remove Inlet Grille assembly 1 Before removing the control box be sure to take out the wire screwed at the other end 34 Unhook the tab on the right inside of the chassis at the same time slightly pull the evaporator toward you until the tab is clear of the slot 5 To remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self aligning bearing 36 4 2 Bearing 5 2 Ke oN A N lt Motor cover 2 way 3 way Valve 2 way Valve Liquid Side 3 way Valve Gas Side Hexagonal wrench 4mm Flare nut Open position Closed position To piping connection outdoor unit Valve cap Flare nut piping connection Open position Closed position Service Service port cap port To outdoor unit
59. 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 N CAUTION This unit is charged with R 410A Pay attention not to charge R 22 7 Additional gas charging Gas leakage When refrigerant is insufficient by leakage recharge the unit with the refrigerant up to normal operating suction pressure Use the graph or the equation below to get operating suction pressure according to indoor and outdoor temperature Suction pressure was measured at 3 way valve service port after operating the unit for 10 minutes The method of using graph Find outdoor temperature Find indoor temperature onto the curve of outdoor temperature Read suction pressure at the axis of ordinates The method of using equation Calculate suction pressure after putting indoor and outdoor temperature into the equation Operating Suction Pressure According to Indo
60. ode operation in order to prevent the compressor from OLP operation the outdoor 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 the outdoor unit from freezing reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit After 40 min heating mode operation at 4 min interval whether to carry out defrost control or not and the time of defrost control are determined according to the following conditions 1 While in heating mode operation the maximum of the indoor pipe temperature is measured and it is com pared with the present indoor pipe temperature to get the difference of the indoor pipe temperatures the maximum temperature of indoor pipe the present temperature of indoor pipe according to which whether to carry out defrost control or not is determined 2 According to the need of defrost control shown above and the elapsed time of heating mode operation at that moment the defrost control time is determined 3 When the determined time of defrost control is below 7 min heating mode operation continues without carry ing out defrost control According to the procedure stated above the determination is made again When the defrost control time is 7 min or longer defrost control is then carried out While in defrost control
61. on the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further 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 In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the air outflow could reach further 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 Cooling Model Room Temp gt 24 C 21 C lt Room Temp lt 24 C Room Temp lt 21 C Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High High Setting Temperature 22 C 22 C 23 C 24 C While in
62. on pause Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Comp Running Incidator While in appliance operation ON while in outdoor unit compressor running OFF while in compressor off 2 H P Model Operation Indicator ON while in appliance operation OFF while in appliance pause Flashing while in disconnection or short in Thermistor 3 sec off 0 5 sec on Sleep Timer Indicator ON while in sleep timer mode OFF when sleep timer cancel or appliance operation pause Timer Indicator ON while in timer mode on off OFF when timer mode is completed or canceled Defrost Indicator OFF except when hot start during heating mode operation or while in defrost control Cooling Mode Operation When the intake air temperature reaches 0 5 C below the setting temp the compressor and the outdoor fan stop When it reaches 0 5 above the setting temp they start to operate again Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C While in compressor running operating with the airflow speed set by the remote control While in compressor not running operating with the low airflow speed regardless of the setting B Healthy Dehumidification Mode When the dehumidification operation input by the remote control is received the intake air temperature is
63. or amp Outdoor Temperature At operating the Unit for 10 minutes 3 o o m Oe c Ce gt 5 42 5 10 15 20 25 30 35 40 Indoor Temp C P 3 0 0123 x Tout 0 8 x Tin Where P Suction Pressure kg cm g Tout Outdoor Temperature C Tin Indoor Temperature C 44 Cycle Troubleshooting Guide Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current Notice Current Temp difference approx 0 less than 80 of rated current Current Temp difference approx 8 less than 80 of rated current Temp difference less than 8 C Current over the reated current Temp difference over 8 C All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakege Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant 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 temperature difference is larger 2 Check temperature and pressure of refrigeration cycle Suction pressure Compared with the normal value Temperature Compared with the normal valve
64. pecifications Type B approved by HAR or SAA mm NORMAL CROSS SECTIONAL AREA 5 9 12k 14K 0 75 1 0 Unit A Indoor Indoor Cable Type B HO5VV F HO5VV F The power connecting cable connected to the indoor and outdoor unit should be complied with the following specifications Type B approved by HAR or SAA NORMAL CROSS SECTIONAL AREA 0 75mm NORMAL CROSS SECTIONAL AREA 1 0 Cable Type B HO7RN F 2 Connect the cable to the outdoor unit Outdoor Unit 1 Remove the control cover from the unit by loos ening the screw Connect the wires to the terminals on the control board individually Terminal block 2 Secure the cable onto the control board with the Connecting cable cord clamp Connecting cable 3 Refix the control cover to the original position with the screw Cover control 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 7k 14k 18k 24k 28k 30k 32k 36k 38k A 15 20 30 30 40 N CAUTION After the confirmation of the above conditions prepare the 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
65. pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed 42 N CAUTION Use vacuum pump equipped with check value applied to be prevented from flowing backward 6 Gas Charging After Evacuation AAN Indoor unit Check valve Charging cylinder Liquid side 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 If you are using a gas cylinder also use a scale and revers 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 43 N CAUTION This is different from previous procedures Because you are charging with
66. the minimum temp of the indoor pipe is measured and it is compared with the present temp of the indoor pipe to get the difference of the indoor pipe temperatures the present temperature of the indoor pipe the minimum temperature of the indoor pipe When the difference is 5 C or higher defrost con trol is completed and heating mode operation is carried out While in defrost control if the defrost time determined before the start of defrost control is completed defrost control stops and heating mode operation is carried out regardless of the above condition When the indoor pipe temp is 42 C or above defrost control is not carried out even if the condition is one of the defrost conditions above While in defrost control the compressor is on and the indoor fan the outdoor fan and the 4 way valve are off 13 B Fuzzy Operation C O 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 C or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C 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 D 25 C 24 C lt Intake Air Temp lt 26 C gt Intake Air Temp 1 G 22 C lt Intake Air Temp lt 24 C
67. w the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compressor ON Temp gt Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 26 C Intake Air Temp D 25 C 24 C lt Intake Air Temp lt 26 C gt Intake Air Temp 1 C 22 C lt Intake Air Temp lt 24 C gt Intake Air Temp 0 5 C 18 C lt Intake Air Temp lt 22 C gt Intake Air Temp Intake Air Temp lt 18 C 2 18 C When the 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 automatically selected according to the tem perature 14 2 Fuzzy Operation for Dehumidification According to the setting temperature selected by Fuzzy rule when the intake air temp is 0 5 or more below the setting temp the compressor is turned off When 0 5 C or more above the setting temp the compressor is turned on Compressor ON Temp D Setting Temp 0 5 C Compressor OFF Temp gt Setting Temp 0 5 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected ac

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