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Copyright ©2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Flaring work and connection of piping

Check

1. Compare the flared work with the figure by.

2. If a flared section is defective, cut it off and do flaring

work again.

Indoor

Preparing the indoor unit's piping and drain hose for installation through the wall.

CAUTION: 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.

1. Route the indoor tubing and the drain hose in the

direction of rear left or right

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.

Inclined

Inside is shiny without scratches

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Connecting the Piping

Drain hose

Connecting
cable

Gas side piping

Liquid side piping

Drain hose

Loop

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Содержание Art Cool LA120CP

Страница 1: ...121FUG0 LAN091HNP ASNH091F2G0 LAU091HNP ASUH091FUG0 LAN121HNP ASNH121F2G0 LAU121HNP ASUH121FUG0 LA090CPI ASNC091F2G0 LA090CPO ASUC091FUG0 LA120CPI ASNC091F2G0 LA120CPO ASUC091FUG0 LA090HPI ASNH091F2G0 LA090HPO ASUH091FUG0 LA120HPI ASNH121F2G0 LA120HPO ASUH121FUG0 CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use O...

Страница 2: ...he cable between indoor unit and outdoor unit 25 Connect the cable to the Indoor unit 25 Connection method of the connecting cable Example 26 Checking the drainage and forming the pipings 27 Checking the drainage 28 Forming the piping 29 AIR PURGING 30 Air purging 30 Charging 32 Panel front assembly 33 Test running 34 How to replace picture photograph 36 Operation 37 Functions 37 The function of m...

Страница 3: ...he possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Installation Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always use the power plug and socket with th...

Страница 4: ...jury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury 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 Take care ...

Страница 5: ... or electric shock Do not store or use flammable gas or combustibles near the air conditioner There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur Wax Thinner When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on DO NOT use the telephone or turn switches on or off ...

Страница 6: ...risk of fire or electrical shock Unplug the appliance before performing cleaning or maintenance There is risk of electrical shock 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 product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in p...

Страница 7: ...unction or inefficient operation Do not direct airflow at room occupants Don t sit in the draft This could damage your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure ...

Страница 8: ...drained from the unit It is not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the air conditioner Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassembl...

Страница 9: ...ns Indoor Unit This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual Pipe Hole Fix Hole Hanger Hole H W D W mm inch 600 23 6 H mm inch 600 23 6 D mm inch 146 5 7 Model Dimension INDOOR UNIT ...

Страница 10: ...g and service purposes LGE Internal Use Only Dimensions Outdoor Unit W L2 L3 L1 D H L4 L5 Gas side 3 way valve Liquid side 2 way valve MODEL 9k 12k Models DIM unit W mm 770 30 3 H mm 540 21 3 D mm 245 9 6 L1 mm 285 11 2 L2 mm 64 2 5 L3 mm 518 20 4 L4 mm 10 0 4 L5 mm 100 3 9 ...

Страница 11: ...0 0 10 5 10 0 10 5 2 93 3 06 1 115 60 1 115 60 1 115 60 1 115 60 90 7 95 7 90 7 95 7 9 3 330 9 3 330 9 3 330 9 3 330 25 883 25 883 25 883 25 883 1 4 1 4 1 4 1 4 41 35 29 41 35 29 41 35 29 41 35 29 48 48 48 48 R410A 900 31 8 R410A 900 31 8 R410A 900 31 8 R410A 900 31 8 Rotary Rotary Rotary Rotary GK113CAA GK113CAA GK113CAA GK113CAA PSC PSC PSC PSC FVC68D PVE FVC68D PVE FVC68D PVE FVC68D PVE 330 330...

Страница 12: ...peration Micom Control Auto Changeover Micom Control Self Diagnosis Timer Sleep Operation Soft Dry Operation Restart Delay minute Deice Control Defrost Hot Start Jet Cool Low Ambient Operation Special Function Network Functions Dry Contact Network Solution LGAP PI485 2 9 3 37 9 900 11 500 2 9 3 22 9 900 11 000 1 100 1 070 1 150 1 100 9 4 9 4 10 10 57 0 57 0 57 0 57 0 2 63 2 93 9 10 2 71 2 93 1 115...

Страница 13: ...rts Installation Tools Read carefully and then follow step by step Type A screw and plastic anchor Type B screw Remote control holder Installation guide map Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Leak detector Thermometer Horizontal meter Flaring tool set Name ...

Страница 14: ... remove the air filter and pour water into the heat exchanger Apply after carrying out a drainage test Saddle More than 19 6 50cm Gas side piping Optional part Liquid side piping Optional part Additional drain pipe Vinyl tape Narrow Connecting cable Optional part Bend the pipe as close as possible on the wall but be careful so that it may not break More than More than 11 8 30cm 11 8 30cm More than...

Страница 15: ...sorʼs oil has the high absorption rate of moisture 3 Composition R 410A R32 R125 50 50wt NOTE Never mix with other refrigerants 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A systems ...

Страница 16: ...8 30cm The front of the unit should have more than 28 70cm of space 3 Do not place animals and plants in the path of the warm air 4 Take the weight of the air conditioner into account and select a place where noise and vibration are minimum 5 Select a place where the warm air and noise from the air conditioner do not disturb neighbors Select the best Location More than 7 9 20cm More than 19 6 50cm...

Страница 17: ...al Refrigerant g m oz ft Max Elevation Ⓑ m ft 9k 12k Ø12 7mm 1 2 Ø6 35mm 1 4 7 5 25 7 5 25 15 49 20 0 22 CAUTION Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 16 4 23feets 5 7 meters Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B A Oil trap Outdoor unit Indoor unit B If piping length is more than 16 4f...

Страница 18: ...e remove the screw of the center tuning cover 2 Pull up the side cover of desired connecting direction then cover side is separated 3 Pick the pipe hole of the side cover CAUTION After removing the pipe hole cut the burr for safety When making pipe path through rear wall you donʼt need to pick the pipe hole NOTICE Drain hose junction 1 Remove the rubber stopple in the desired drain direction 2 Ins...

Страница 19: ... piercing a screw point 5 Drive the fore plastic anchors into drilled points 7 Hang the hole of product at the upper screws and remove the map Falling attention 9 Check the fixed product with light power 1 Attach an Installation guide map on the desired surface 2 Look at suited horizon by horizontal meter on the horizontal setting line and fix lightly the map by adhesive tape 4 Drill the pierted p...

Страница 20: ...emoving burrs 1 Completely remove all burrs from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work...

Страница 21: ...aterial so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended 1 Route the indoor tubing and the drain hose in the direction of rear left or right 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 ove...

Страница 22: ...yl tape so that there may be no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape 3 Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section Flaring work and connection of piping mm inch kgf cm Ø6 35 1 4 180 250 Ø9 52 3 8 340 420 Ø12 7 1 2 550 660 Outside diameter Torque...

Страница 23: ...Internal Use Only Flaring work and connection of piping CAUTION Installation Information For right piping Follow the instruction below Good case Press on the upper side of clamp and unfold the tubing to downward slowly Bad case Following bending type from left to right may cause damage to the turbing ...

Страница 24: ... pipings and sufficiently tighten the flare nut by hand 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 mm inch kgf cm Ø6 35 1 4 180 250 Ø9 52 3 8 340 420 Ø12 7 1 2 550 660 Ø15 88 5 8 630 820 Ø19 05 3 4 980 1210 Outside diameter Torque Outdoor unit Liquid si...

Страница 25: ...ions on connecting depending on the wire type you are using WARNING Be sure to comply with local codes while running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc Every wire must be connected firmly No wire should be allowed to touch refrigerant tubing the compressor or any moving parts Power Supply NOTICE 1 Indoor Unit Outdoor Unit 2 3 4 1 2 3 4 5 6 G To bra...

Страница 26: ...d fasten the wire tightly with the fixing screw of the terminal plate How to connect wiring to the terminals For solid core wiring or F cable 1 Cut the wire end with a wire cutter of wire cutting pliers then strip the insulation to expose the solid wire about 25mm 15 16 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using pliers bend the solid wire to from a loop suitabl...

Страница 27: ...ll 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 Confirm 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 ...

Страница 28: ...ainage 1 Pour a glass of water on the evaporator 2 Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping like the following Downward slope Do not raise Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Water l...

Страница 29: ...ow the indoor unit perform the following 1 Tape the piping drain hose and connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent In cases where the outdoor unit is installed above the Indoor unit perform the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to preven...

Страница 30: ...ak test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve w...

Страница 31: ...on 2 When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to releas...

Страница 32: ...rge based on how many ft of tubing are either added or removed based on 20g 0 22oz of R 410A per meter foot Example A 30ft line set is used 5 additional ft X 0 22 ounce per foot add 1 1 ounces of R 410A Important If you are ever uncertain of the unit charge reclaim evacuate and weigh in the correct charge using the unit nameplate charge adjusting for line sets longer or shorter than 7 5m 25ft Conf...

Страница 33: ... Check the side cover assembly exactly and fix the power cord in the bottom groove of cover side left 2 Assemble connecting lead wire with controller fix the upper part of panel front and match the lower part of panel front 3 Screw up panel front and suspend the hook of panel front in the groove Panel Front Connector Panel Front Assembly ...

Страница 34: ...em is not used for a long time Settlement of outdoor unit 1 Anchor the outdoor unit with a bolt and nut ø0 39 ø10mm tightly and horizontally on a concrete or rigid mount 2 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 3 If the vibration of the unit is transmitted to the hose secure the unit with an an...

Страница 35: ...into the outdoor unit without the loss of refrigerant CAUTION Be sure to perform Pump Down procedure in the 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 the air in the manifold hose using the refrigerant 3 Close the liquid side service valve all the way 4 Turn on th...

Страница 36: ...ide down of the picture and turn over mat then take off a protective tape attached at the mat 6 Place the picture photograph between the exited picture and mat Recommended size of a photo picture 450mm x 450mm 7 Cover mat and press down with hand s until contacting closely 8 Slide the photo graph drawing requested under both hanger parts as following and fix them Press the front panel lightly to c...

Страница 37: ...tains the room temperature in accordance with the Setting Temp Indoor fan is delayed for 5 seconds at the starting Restarting is inhibited for approx 3 minutes High Med Low and Auto Intermittent operation of fan at low speed Both the indoor and outdoor fan stops during defrosting Hot start will be operated after defrosting ends The indoor fan stops until the indoor pipe temperature will be reached...

Страница 38: ... remote control and the operation diagram is shown below CLOSED OPEN Cooling Mode 8 CLOSED OPEN Heating Mode 8 1 Time delay Safety Control 3min The compressor operation is delayed for 3 minutes to balance the pressure of cycle Protection of compressor 5sec The indoor fan is delayed for 5 seconds when operating initially to prevent noises occurred by the vertical louver and wind 2min The reversing ...

Страница 39: ...Soft Dry below 70 F Heating Over 76 F Cooling INTAKE AIR TEMP SETTING TEMP 1 F Compressor OFF SETTING TEMP 1 F Compressor ON COMPRESSOR ON OFF ON OFF INDOOR FAN SPEED The electronic control operation Intake air Temperature Setting Temperature Over 78 F 77 F Over 76 F below 78 F Intake air 1 C Over 72 F below 76 F Intake air 0 5 C Over 68 F below 72 F Intake air temperature below 64 F 64 F Over 64 ...

Страница 40: ...tton makes the horizontal louvers swing up and down automatically If you want to stop auto swing press chaos swing button again 5 Healthy Dehumidification When the dehumidification operation input by the remote control is received the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature 79 F Intake Air Temp 77 F 75 F Intake Intake Air...

Страница 41: ...m 10sec COMPRESSOR ON OFF ON OFF A point While the indoor pipe temperature is higher than 95 F indoor fan operates at low speed When the indoor pipe temperature becomes lower than 95 F indoor fan stops B point When the indoor pipe temperature is higher than 100 F 38 C fan operates at selected fan speed INDOOR FAN SPEED Low OFF Low Low OFF OFF OFF LOW ON Selecting fan speed INDOOR PIPE TEMP 82 F 78...

Страница 42: ... later The operation will be stopped after 1 2 3 4 5 6 7 hours Heating Mode with the Sleep Mode only Heating Model The operation will be stopped after 1 2 3 4 5 6 7 hours INTAKE AIR TEMP SETTING TEMP 1 F Compressor ON SETTING TEMP 1 F Compressor OFF 30 minutes 30 minutes More than 3 minutes 2 F 2 F More than 3 minutes COMPRESSOR ON OFF ON OFF ON INDOOR FAN SPEED Low Low Low Low Low SETTING TEMP 6 ...

Страница 43: ...is recommended when you wish to cool the room quickly Test operation During the TEST OPERATION the unit operates in cooling mode at high speed fan regardless of room temperature and resets in 18 minutes During test operation if remote controller signal is received the unit operates as remote controller sets If you want to use this operation Press and hold the ON OFF button for 3 5 seconds then the...

Страница 44: ...t beeps or one long beep Operation Indication Lamps On Off Lights up during the system operation 3sec 3sec 3sec once 3sec 3sec twice 3sec 5times Error Code 1 2 5 Error LED Indoor body operation LED Error contents Indoor room temperature thermistor open short Indoor pipe temperature thermistor open short Outdoor pipe temperature thermistor open short Poor communication Indoor TH assy check Outdoor ...

Страница 45: ...peed cooling heating operates super high fan speed in cooling heatig mode 6 CHAOS SWING BUTTON Used to stop or start louver movement and set the desired up down airflow direction 7 ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation 8 TIME SETTING BUTTONS Used to adjust the time 9 TIMER SET CANCEL BUTTON Used to set the timer when the desired time is obtained and to cancel...

Страница 46: ... bottom the remove 2 securing screws Lift the both lower parts of panel front After pull down this panel a bit separate connecting wire with product 2 To remove the Control Box Before removing the control box be sure to disconnect the wires from PWB Pull the cover control out from the control box and disconnect other wires Remove securing screws Pull the control box out from the chassis carefully ...

Страница 47: ...ll the evaporator out from the chassis carefully 4 Before removing the Turbo Fan Remove the securing screws from the chassis Pull the pipe top cover and the air guide 5 To remove the Motor Remove the securing bolt from the motor shaft Pull the fan out from the motor shaft Remove 4 screws securing motor mount from the chassis and lift up the motor mount and the bracket Top Cover Air Guide Motor Mou...

Страница 48: ... 48 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Schematic Diagram Heat Pump Cooling Only Series Indoor Unit ...

Страница 49: ... 49 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Heat Pump Series Cooling Only Series Outdoor Unit ...

Страница 50: ...right 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram INDOOR UNIT P W B ASSEMBLY P No 6871A20999A PCB ASSEMBLY MAIN Top View Bottom View ...

Страница 51: ...ight 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram P No 6871A20901C PCB ASSEMBLY MAIN OUTDOOR UNIT P W B ASSEMBLY Top View Bottom View ...

Страница 52: ... 52 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram DISPLAY P W B ASM P No 6871A20921A PCB ASSEMBLY ...

Страница 53: ... 53 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram Wiring Diagram 1 Indoor Unit Cooling Only Models Heating Models ...

Страница 54: ... 54 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Schematic Diagram 2 Outdoor Unit Cooling Only Models Heating Models ...

Страница 55: ...e Refrigeration Cycle Diagram INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER HEAT EXCHANGE CONDENSER COMPRESSOR COMPRESSOR GAS SIDE GAS SIDE LIQUID SIDE LIQUID SIDE CAPILLARY TUBE CAPILLARY TUBE CHECK VALVE COOLING HEATING REVERSING VALVE 1 Cooling Only Models 2 Cooling Heating Models ...

Страница 56: ...Oil trap Outdoor unit Indoor unit B If piping length is more than 16 4ft 5m CAUTION Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 16 4 23feets 5 7 meters Pipe Size Capacity Btu h Suction Evap Max length Ⓐ m ft Additional Refrigerant g m oz ft Max Elevation Ⓑ m ft 9k 12k Ø12 7mm 1 2 Ø6 35mm 1 4 7 5 25 7 5 25 15 49...

Страница 57: ...ct the charge hose to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the liquid side valve to the closed position 6 Operate the air conditioner in cooling mode and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the Gas side valve to the closed position Do this quickly so that the gauge e...

Страница 58: ...times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and discharge the refrigerant until the gauge indicates 3 to 5 kg cm2 g 6 Disconnect the charge set and the gas cylinder and set the Liquid side and Gas side valves to the op...

Страница 59: ...e to the service port 3 Open the valve Lo side on the charge set and discharge the refrigerant until the gauge indicates 0 kg cm2 G If there is no air in the refrigerant cycle the pressure when the air conditioner is not running is higher than 1 kg cm2 G discharge the refrigerant until the gauge indicates 0 5 to 1 kg cm2 G if this is the case it will not be necessary to apply a evacuatin Discharge...

Страница 60: ... 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 pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed Lo ...

Страница 61: ...h 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 4 Immediately disconnect the charge hose from the 3 way valveʼs service port Stopping partway will allow the gas to be discharged If the system has been charged with liquid refrigeran...

Страница 62: ...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 13 At operating the Unit for 10 minutes Suction Pressure Kg cm 2 g Outdoor Temp C Indoo...

Страница 63: ...erature 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 1 The suction pressure is usually 4 5 6 0 kg cm2 G Cooling at normal condition 2 The temperature can ...

Страница 64: ...ctor related to CN POWER Connector related to CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector including connecting cable of Indoor Outdoor Unit PCB Board Operation Check Items Power Transformer Outdoor unit Input Voltage Output...

Страница 65: ...ace battery Check the contact of CN DISP connector 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 Check DISP PWB Ass y Voltage between CN DISP DC 5V When the detect switch double key inside the remote controller door is fault it...

Страница 66: ...Compressor Outdoor Fan is stopped Check the related circuit of R02H 12 1K R04H 6 2K Micom No 27 Indoor unit Check the indoor temperature sensor is disconnected or not About 10kΩ at 77 F When the temperature around Outdoor PWB Ass y is above 163 F the compressor is stop and only Outdoor Fan is operating Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal condi...

Страница 67: ...ble of page 72 Check the patterns and the conditions of outdoor unit PWB Assy s Check the connecting condition and disconnection of connecting wires between Indoor and Outdoor unit Check the pattern and the condition of Indoor unit PWB Ass y Check the interference of Indoor Fan Does the voltage of each terminals of CN MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 72 Che...

Страница 68: ...g condition of CN UP DOWN Connector Check the soldering condition on PWB of CN UP DOWN Connector Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pin RED of CN UP DOWN and GND Confirm that there is a soldering short at following terminals Between 77 78 79 and 80 of MICOM Between 4 5 6 and 7 of IC02M Between 10 11 12 and 13 of IC01M Between 1 2 3 4 and 5 of CN...

Страница 69: ...he operating condition of product after also operating with the remote controller then taking above 2 minutes Apply the power again after about 20 seconds by the power of Outdoor unit is off Check for the communication error and the operating condition of product after also operating with the remote controller then taking above 2 minutes Check the PWB assembly of Indoor and Outdoor unit Caution If...

Страница 70: ...n vane does not smoothly operate It does not operate with a remote controller The operation indicator blinks once on for 0 5 second off for 3 seconds The compressor operates continuously regardless of the setting temperature and the variation of room temperature The operation indicator blinks once on for 0 5 second off for 3 seconds Continuous operation The operation indicator blinks once The comp...

Страница 71: ... time The signal of the remote controller is inputted The fuse and Q61 in the Outdoor unit are damaged when the indoor fan is operated No power for Indoor unit The signal input of the remote controller and operation of product is impossible The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power All functions stop The operation with the remote controller forced...

Страница 72: ...oor Indoor Connecting Terminal Outdoor Connecting Terminal Input Power TAB N CN MOTOR CN DC DC RY COMP A 3 4 RY COMP B BL BK BR RD 4 3 2 1 CN DC DC BL BK BR RD S Hi Hi Med Low Off 12k OUTDOO R CN DC DC INDOOR CN DC DC INDOOR CN MOTOR No of pins DC Voltage 10 4 2 4 3 4 3 3 3 2 2 2 2 35 5 11 97 35 5 15 87 35 5 15 87 32 96 11 97 32 96 15 87 32 96 15 87 25 17 11 97 25 17 15 87 25 17 15 87 17 28 11 97 ...

Страница 73: ...711A 152302 268711B 135500B 145200 146811B 135500A 266090 268711C W6640 249951 159830 330871 267110 349600 346810 359012 352380 147581 146811A 135080 567480C INLET AIR EVA MIDDLE Indoor Unit NOTE Please ensure GCSC since the replacement parts may be changed demending upon the buyer s request Please check the correct parts in View RPL Replacement Part List on GCSC GCSC Website http biz Lgservice co...

Страница 74: ... W6640A 559010 546810 549610 554031 430410 152503 552203A W49810 552203B 437212 435511 649950 W0CZZ 263230A 263230B SUCTION 135500A W6920 268711 552201 W6631 135500B 2 Outdoor Unit C O Series NOTE Please ensure GCSC since the replacement parts may be changed demending upon the buyer s request Please check the correct parts in View RPL Replacement Part List on GCSC GCSC Website http biz Lgservice c...

Страница 75: ...910 W6640B 559010 546810 549610 554031 430410 552203A W49810 152503 552203B 437212 435511 649950 W0CZZ 263230A 268711 263230B SUCTION 135500A W6920 552112 237202 W6631 135500B W6640A 2 Outdoor Unit H P Series NOTE Please ensure GCSC since the replacement parts may be changed demending upon the buyer s request Please check the correct parts in View RPL Replacement Part List on GCSC GCSC Website htt...

Страница 76: ...umber 888 LG Canada 888 542 2623 1 Please call the installing contractor of your product as warranty service will be provided by them 2 If you have service issues that have not been addressed by the contractor please call 1 888 865 3026 US CANADA ...

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