website http://www.lgservice.com LG LG Room Air Conditioner SERVICE MANUAL MODELS: LAN181CNW(ASNC183VML3) LAU181CNW(ASUC183VML3) LA180CPI (ASNC183VML3) LA180CPO (ASUC183VML3) CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Air Conditioner Service Manual TABLE OF CONTENTS Details of 2006 LG Model Name.................................................................................................... 3 Safety Precautions......................................................................................................................... 4 Functions ...................................................................................................................................... 10 Product References .....................
Details of 2006 LG Model Name Details of 2006 LG Model Name 1 Code 2 - 3 Type 4 5 Code of Model 6 7 8 9 10 Meaning 1 Producing Center/ Refrigerant A~Z L: ChangWon R22, A: ChangWon R410A, C: ChangWon R407C 2 Type of Air conditioner A~Z S: Split Type Air conditioner 3 Cooling/Heating A~Z C: C/O, H: H/P, X: C/O + E/H, Z: H/P + E/H 4,5 Capacity(Btu/h) 1~9 Cooling/Heating Capacity Ex.
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. ■ Meanings of symbols used in this manual are as shown below.
Safety Precautions Be cautious when unpacking and installing the product. For installation, always contact the dealer or an Authorized Service Center. Do not install the product on a defective installation stand. • Shape edges could cause injury. Be especially careful of the sharp edges. • There is risk of fire, electric shock, explosion, or injury. • It may cause injury, accident, or damage to the product. Be sure the installation area does not deteriorate with age.
Safety Precautions Do not place a heater or other appliances near the power cable. • There is risk of fire, failure of the product, and/or electric shock. Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. • Moisture may condense and wet or damage furnishings. Do not store of use flammable gas or combustibles near the air conditioner. • There is risk of fire or product failure.
Safety Precautions Ventilate the product from time to time when operating it together with a stove, etc. Unplug the appliance before performing cleaning or maintenance. When the product is not be used for a long time disconnect the power supply plug or turn off the breaker. • There is risk of fire or electrical shock. • There is risk of electric shock. • There is risk of product damage or failure, or unintended operation.
Safety Precautions ■ Operation Use two or more people to lift and transport the air conditioner Do not install the product where it will be exposed to sea wind (salt spray) directly. Do not direct airflow at room occupants. • Avoid personal injury. • It may cause corrosion in the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. • This could damage your health.
Safety Precautions Do not drink the water drained from the unit. Use a firm stool or ladder when cleaning or maintaining the air conditioner. Replace all the batteries in the remote. • It is not sanitary and could cause serious health issues. • Be careful and avoid personal injury. • There is risk of fire or explosion. ■ Disuse Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
Functions Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 sec at the starting. Time Delay Safety Control • Restarting is inhibited for approx. 3 minutes.
Functions Remote Control Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( (Cooling (Heating model only) model only) ) Healthy Dehumidification Operation Mode.( Auto Operation Mode.( ) ) Heating Operation Mode.
Product References Product References Items Unit Power Supply ø, V, Hz Cooling Capacity BTU/h Input W Running Current A COMP. Locked Rotor AMP. A S.E.E.
Dimensions Dimensions Indoor Unit 928 522 147 Pipe Hole MODEL DIM Fix Hole Indoor Unit Unit W mm(inch) 928(36.5) H mm(inch) 522(20.6) D mm(inch) 147(5.
Dimensions Outdoor Unit L1 L9 H L3 L2 D W L10 Gas side 3-way valve L4 Liquid side 2-way valve L6 L5 MODEL DIM L7 L8 OUTDOOR UNIT W mm(inch) 870(34.3) H mm(inch) 655(25.8) D mm(inch) 320(12.6) L1 mm(inch) 370(14.6) L2 mm(inch) 25(1.0) L3 mm(inch) 630(24.8) L4 mm(inch) 25(1.0) L5 mm(inch) 546(21.5) L6 mm(inch) 162(6.4) L7 mm(inch) 162(6.4) L8 mm(inch) 54(2.1) L9 mm(inch) 74.5(2.9) L10 mm(inch) 79(3.
Refrigeration Cycle Diagram Refrigeration Cycle Diagram Cooling Only Models INDOOR UNIT OUTDOOR UNIT LIQUID SIDE CAPILLARY TUBE HEAT EXCHANGER (EVAPORATOR) HEAT EXCHANGER (CONDENSER) COMPRESSOR GAS SIDE Pipe size(Diameter:ø) Piping length Elevation MODEL 18K (Cooling Only) Gas Liquid Rated Max Rated Max 1/2" 1/4" 7.5m(24.6ft) 30m(98.4ft) 5m(16ft) 15m(49ft) For installation over rated, *a proper quantity of refrigerant should be added for each meter.
Wiring Diagram Wiring Diagram Indoor Unit 18K (Cooling Only Models) Outdoor Unit 16 Room Air Conditioner
Operation Details Operation Details 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 operation pause. Timer Indicator • ON while in timer mode (on/off), OFF when timer mode is completed or canceled. Comp.
Operation Details • 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 dehumidification operation and 4-min compressor off repeat. Compressor ON Temp. ➲ Setting Temp+0.5°C Compressor OFF Temp. ➲ Setting Temp-0.5°C • In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
Operation Details ■ 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 ➲ Setting Temp + 0.5°C Compressor OFF Temp ➲ 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.
Operation Details 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on. Compressor ON Temp ➲ Setting Temp + 0.5°C Compressor OFF Temp ➲ Setting Temp+0.
Operation Details ■ 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.
Operation Details ■ 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 60 min at cooling mode operation. • In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C.
Display Function Display Function 1. Heating Model 2.
Introduction Symbols used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air conditioner. NOTICE This symbol indicates special notes.
Installation Installation Read carefully, and then follow step by step.
Installation Installation Map NOTICE Installation parts you should purchase. More than 3.9"(10cm) Sleeve Bushing-Sleeve Putty(Gum Type Sealer) More than 19.6"(50cm) (Left and right are identical) Bend the pipe as closely on the wall as possible, but be careful that it doesn't break. Vinyl tape (Wide) Saddle • To carry out the drainage test, remove the air filters and pour water into the heat exchanger. • Apply after carrying out a drainage test.
Installation Confirm The Refrigerant 1. Check the quality label on the indoor and outdoor unit. 2. Make certain that the refrigerant is R-410A. NOTICE THIS PRODUCT CONTAINS R-410A REFRIGERANT 1) Different compressor oil - R-410A(Polyol ester) / R-22(Mineral). - Do not mix the existing mineral oil. - Do not apply used pipe, tools and gauges covered with the existing mineral oil. 2) Absorption of moisture -Compressor’s oil has the high absorption rate of moisture. 3) Composition - R-410A(R32:R125=50:50wt%).
Installation Installation of indoor, Outdoor unit Read completely, then follow step by step. 1) Select the best location 1. Indoor unit ■ Do not have any heat or steam near the unit. ■ Select a place where there are no obstacles in front of the unit. ■ Make sure that condensation drainage can be conveniently routed away. ■ Do not install near a doorway. ■ Ensure that the space around the left and right of the unit is more than 50cm(19.7”).
Installation 3) Preparing work for Installation 1. Open panel front 2. Cover pipe and cover side remove ■ First,Pull the grille bottom, then remove screws(2 pieces), and close grille bottom again. ■ The moment of lifting the both lower parts of panel front, you can hear sound this panel came out, In this time panel front is separated ■ After pull down this panel a bit, and separate connecting wire with product.
Installation 4) How to fix installation plate 5) Preparing work for installation The wall you select should be strong and solid enough to prevent vibration A Mount the installation plate on the wall with 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. 1. Drill a hole in the wall • Drill the piping hole with a ø50mm hole core drill.
Installation Flaring Work and Connection of Piping 1) Flaring work 1. 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. • Cut the cable 1.5m longer than the pipe length. Copper pipe • Carry out flaring work using flaring tool as shown below. Bar Handle "A" Main cause for refrigerant leakage is due to defect in the flaring work.
Installation 2. 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. Loop Gas side piping Connecting cable Liquid side piping Outside diameter mm inch Ø6.35 1/4 Ø9.52 3.8 Ø12.7 1/2 Ø15.88 5/8 Ø19.05 3/4 Torque Kgf.cm 180~250 340~420 350~660 630~820 990~1210 • When extending the drain hose at the indoor unit, install the drain pipe.
Installation CAUTION Installation Information (For right piping) • Good case 3) Connection of the pipes-Outdoor 1. Align the center of the pipings and sufficiently tighten the flare nut by hand. For right piping. Follow the instruction below. ■ Press on the upper side of clamp and unfold the tubing to downward slowly. 2. Finally, tighten the flare nut with torque wrench until the wrench clicks.
Installation Connecting The Cable Between Indoor Unit and Outdoor Unit 1) Connection of the cable 1. Remove the cover control from the unit by loosening the 3 screws. Wiring Diagram 2. Dismount caps on the conduit panel. 3. Temporarily mount the conduit tubes on the conduit panel. 4. Properly connect both the power supply and low voltage lines to the corresponding terminals on the terminal block. Indoor Unit Terminal (4P) 1 2 2 3 3 4 4 Power supply a L1* 5 L2 6 To branch circuit G 5.
Installation 2) Connection method of the connecting cable(Example) (1) Dismount two-caps on the conduit panel. (2) Make a hole appropriate for the passage of connection cable through on cap by tool. (for low voltage line) (3) Pass the connecting cable through the hole. (4) Properly connect the cable on the terminal block. (5) Fix the connection cable with clamp cord provided on the unit not to have strain at the terminal when the connection cable is pulled outside up to a 35 pound weight.
Installation 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 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.
Installation Checking the Drainage and forming the pipings 1) Checking the drainage 2) Form the piping 1. To check the drainage. 1. Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes. ■ 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.
Installation CAUTION CAUTION 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 Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse. 3) Connect the cable to the indoor unit 1. Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the color of the wires of outdoor unit and the terminal No.
Installation Air Purging 1) Air purging 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 refrigeration system.
Installation Soap water method Gas side (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 counterclockwise approximately 90°, wait for about 2~3 sec, and close it. (4) Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping. (5) If bubbles come out, the pipes have leakage.
Installation Panel Front Assembly 1. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of cover side left. 2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front Panel Front Connector 3. Drive three screws.
Installation Test Running 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. Prepare remote control 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. Discharge temperature 4. For reference; the gas side pressure of optimum condition is as below.
Operation Operation Remote Control Operations The controls will look like the following. Signal transmitter 1 2 3 5 1 6 3 4 2 7 11 8 13 10 CANCEL ON OFF 9 12 SET AUTO CLEAN 16 17 15 14 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation or Auto Changeover Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( ) 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2.
Disassembly of the parts (Indoor unit) 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”. 1. To remove the Grille from the Chassis. - Push mark[ ] on the grille bottom then pull it down and remove 3 securing screws. - Lift the both lower parts of panel front. - After pull down this panel a bit, separate connecting wire with product. ∆ Panel Front Connector CN-DC/DC CN-UD CN-LR2 CN-TH1 2.
Disassembly of the parts (Indoor unit) 3. To remove the Evaporator. - Remove 1 screws securing the evaporator. - Pull the evaporator out from the chassis carefully. 4. Before removing the Turbo Fan. - Remove the securing screws from the chassis. - Pull the pipe cover, top cover and the air guide. Top Cover Air Guide Pipe Cover 5. To remove the Motor. - Remove the securing bolt from the motor shaft. - Pull the fan out from the motor shaft.
2-way, 3-way Valve 2-way, 3-way Valve 2-way Valve (Liquid Side) Hexagonal wrench (4mm) Flare nut 3-way Valve (Gas Side) Valve cap Open position Flare nut Closed position Open position Closed position To piping connection To piping connection To outdoor unit Works Shipping 1.
2-way, 3-way Valve 1. Air purging Required tools : hexagonal wrench, adjustable wrench, torque wrenches, wrench to hold the joints, and gas leak detector. 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. The additional gas for air purging has been charged in the outdoor unit.
2-way, 3-way Valve 2. Pumping down Liquid side Indoor unit 2-Way valve Open Outdoor unit Gas side Closed 3-Way valve Lo CLOSE CLOSE Purge the air • Procedure (1) Confirm that both the 2-way and 3-way valves are set to the open position. – Remove the valve stem caps and confirm that the valve stems are in the raised position. – Be sure to use a hexagonal wrench to operate the valve stems. (6) Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg/cm2g.
2-way, 3-way Valve 1) Re-air purging (Re-installation) Liquid side Indoor unit 2-Way valve Closed Outdoor unit Gas side Closed 3-Way valve Gas cylinder Lo R22 OPEN CLOSE • Procedure (1) Confirm that both the 2-way valve and the 3way 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.
2-way, 3-way Valve 2) Balance refrigerant of the 2-way, 3-way valves (Gas leakage) Liquid side Indoor unit Outdoor unit 2-Way valve Open 3-Way valve Open Gas side Lo OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves are set to the back seat. (2) Connect the charge set to the 3-way valve’s port. – Leave the valve on the charge set closed. – Connect the charge hose with the push pin to the service port.
2-way, 3-way Valve 3. Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 2-Way valve Open Gas side 3-Way valve Open Vacuum pump Lo OPEN CLOSE • Procedure (1) Connect the vacuum pump to the charge set’s center hose (4) Disconnect the charge hose from the vacuum pump. – Vacuum pump oil. If the vacuum pump oil becomes dir ty or depleted, replenish as needed. (2) Evacuation for approximately one hour.
2-way, 3-way Valve 4. Gas Charging (After Evacuation) Liquid side Indoor unit 2-Way valve Open Outdoor unit Gas side Open 3-Way valve Check valve Charging cylinder Lo (1) OPEN CLOSE • 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-way, 3-way Valve 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.
Cycle Troubleshooting Guide Cycle Troubleshooting Guide 1. Trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. difference :approx. 0°F Current :less than 80% of rated current All amount of refrigerant leaked out. Check refrigeration cycle. Temp. difference :approx. 8°C(14°F) Current :less than 80% of rated current Refrigerant leakage Clog of refrigeration cycle Defective compressor Temp.
Cycle Troubleshooting Guide 2. Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.
Cycle Troubleshooting Guide 3. The product is not operate with the remote controller. Turn on Main Power While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller. (When operated in the Sleeping Mode, the wind speed is set to the low speed by force.
Cycle Troubleshooting Guide 4. Compressor/Outdoor Fan are unable to drive. Turn on Main Power Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2°F at least. When in Fan Mode, Compressor/Outdoor Fan is stopped. Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(EVA).
Cycle Troubleshooting Guide 5. When Indoor Fan does not operate. Does the voltage of each terminals of CN-MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 63? Does the voltage of terminal of CN-DC/DC CONNECTOR in Indoor unit corresponds to the values in the table of page 63? Do the voltage of terminal of CN-DC/DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 63? NO Check the patterns and the conditions of outdoor unit PWB Assy's.
Cycle Troubleshooting Guide 6. When Vertical Louver does not operate. • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with Normal hands • Check the connecting condition of CN-U/D, CN-L/R Connector • Check the soldering condition(on PWB) of CN-U/D, CN-L/R Connector Check the operating circuit of the Vertical Louver • Confirm that there is DC +12V between pin (RED) of CN-U/D, CN-L/R and GND.
Cycle Troubleshooting Guide 7. When a comunication error occurs. • The operation indicator of Indoor unit blinks five times. • The red indicator of Outdoor unit blinks five times. Check the connecting wires between Indoor and Outdoor unit for the connecting error and the contacting condition. Check the installation condition of outdoor unit. Check for the communication error and the operating condition of product after also operating with the remote controller, then taking above 2 minutes.
Cycle Troubleshooting Guide 8. The phenomena in case of connecting error INDOOR UNIT Connector Type CN-DC/DC Condition Open and connecting error Phenomena • The same as the phenomenon of Outdoor Unit. Blue Black Brown Red CN-MOTOR Open • The indoor fan does not operate. • The operation indicator of Indoor unit blinks 8 times. Open • The up/down vane does not operate. CN-UD Short between terminals CN-D1/D2 Open • The up/down vane does not smoothly operate.
Cycle Troubleshooting Guide OUTDOOR UNIT Connector Type Condition OPEN CN-POWER Connecting reversely Phenomena • All functions stop. • The operation with the remote controller, forced and test one do not operate. • PWB pattern is damaged when applying the power. OPEN • All functions stop or the compressor does not operate. • The operation with the remote controller, forced and test one do not operate. Connecting reversely • All functions stop.
BL BK BR RD 1 2 3 4 INDOOR FAN MOTOR OUTDOO R CN-DC/DC INDOOR CN-DC/DC INDOOR CN-MOTOR CONNELTORS MODELS INDOOR PWB ASSY 2 1 2 2 4 2 1 3 2 4 2 2 4 3 2 2 1 3 - + No. of pins Indoor Connecting Terminal 34.0 17.0 0~12 34.0 17.0 0~12 0~5 5.0 34.0 S-Hi 18K 32.0 17.0 0~12 32.0 17.0 0~12 0~5 5.0 32.0 Hi 27.8 17.0 0~12 27.8 17.0 0~12 0~5 5.0 27.8 Med 24.1 17.0 0~12 24.1 17.0 0~12 0~5 5.0 24.
Electronic Control Device Electronic Control Device MAIN PWB ASSY(Indoor Unit) • TOP VIEW • BOTTOM VIEW • PWB ASSY SVC PART LIST OPTIONAL FUNCTION NO 1 MODEL 18K Cooling Model OJ1H, OJ2H, : SHORT 64 Room Air Conditioner P/No.
Electronic Control Device MAIN PWB ASSY(Outdoor Unit) • TOP VIEW • BOTTOM VIEW
Electronic Control Device DISPLAY PWB ASSEMBLY • TOP VIEW • BOTTOM VIEW 66 Room Air Conditioner
Schematic Diagram Schematic Diagram Indoor Unit STEPPING MOTOR CN-D5 CN-D6 5 4 3 5 CN-D7 CN-D8 4 3 5 RD OR YL PK BL 4 3 2 1 2 1 5 4 3 2 1 2 1 RD OR YL PK BL RD OR YL PK BL SUB PCB ASM 5 6 2 3 4 1 5 6 2 3 4 1 5 6 2 3 4 1 CN-D1(WH) 5 6 7 8 1 3 2 1 5 8 7 6 5 9 8 7 6 5 9 8 7 6 5 12V 11 HVB PIN2 HVB HVB PIN1 receiver 12 10 5V C02L 220 10V 5V DC 5V R03G 220 R02G 220 12V HVB 5V 10 9 3 7 6 5 4 8 2 14 1 11 12 13 15 2 c e d 1 C D Q 2 3 1
Schematic Diagram Outdoor Unit 68 Room Air Conditioner
Exploded View and Replacement Parts List Exploded View and Replacement Parts List Indoor Unit 352380-2 249951 352380-1 146811 147581 135311-2 268711-2 131410 135500-2 146811 147581 349490 346810-2 359012-2 346810-1 147581 135500-1 146811 359012-1 135311-3 135311-1 330870 135500-3 267110 354210 268711-1 567480 159830 352115 352116 352150 35211B 135313 135316 152302 Service Manual 69
Exploded View and Replacement Parts List Parts List(indoor) PART No. LOCATION No.
437210 435512 447910 430410 559010 546810 550140 550140 552203-2 W0CZZ-1 554160-1 552203-1 W0CZZ-2 554031 554160-2 567502-1 668711 552202 567502-2 263230-2 263230-1 55211G 435511 649950 263230 437212 566000 561410 552116 Exploded View and Replacement Parts List 2.
Exploded View and Replacement Parts List Parts List(outdoor) PART No. LOCATION No. DESCRIPTION LAU181CNW(ASUC183VML3) LA180CPO(ASUC183VML3) REMARKS 552203-1 VALVE,SERVICE 2H02479B R 552203-2 VALVE,SERVICE 5220A20006A R CONDENSER ASSY,BENT 5403A20058B R 554160-1 COMPRESSOR SET 2520UGJK2AA R 554160-2 COMPRESSOR SET 2520UGAK2AA R 1A00195B R 554031 559010 FAN ASSY, PROPOLLER 567502-1 O.L.P 6750U-L039A R 567502-2 O.L.
P/No.