LG ABNH186HLAC Service Manual Download Page 101

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Electronic Control Device

Service Manual

105

Electronic Parts Troubleshooting Guide

3. When cooling does not operate

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 1°C at least.

When in Air Circulation 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).

When the sensor circuit for indoor temperature and connector are in bad
connection or are not engaged, Compressor/Outdoor Fan is stopped.

• Check the indoor temperature sensor is disconnected or not(About 10k

Ω

/ at 25°C).

Check Relay(RY - COMP) for driving compressor.

• When the power(About AC220V/240V) is applied to the connecting wire

terminal support transferred to compressor, PWB Ass'y is normal.

• Check the circuit related to the relay.

Check point

COMP ON

COMP OFF

Below DC 1V

About DC12V

(app)

Between two pin of DC
part in relay for COMP

Summary of Contents for ABNH186HLAC

Page 1: ...ir Conditioner SERVICE MANUAL LG CAUTION website http www lgservice com e mail http www lgeservice com techsup html BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL ...

Page 2: ...de Self diagnosis Function 102 Electronic Parts Troubleshooting Guide 103 IV Electronic Control Device Ceiling Cassette Type 110 Ceiling Duct Type 111 Ceiling Floor 113 V Schematic Diagram Ceiling Cassette Type 116 Ceiling Duct Type 117 Ceiling Floor 118 VI Functional Description Ceiling Cassette Type 120 Ceiling Duct Type 122 Ceiling Floor 125 Outdoor Units 128 VII Explode View and Replacement Pa...

Page 3: ...I Indoor Units Introduction 8 Ceiling Cassette 4 way 10 Ceiling Floor 37 Ceiling Concealed Duct 54 Service Manual 7 ...

Page 4: ...AC AVNH 366KLAC AVNH 486LLAC AVNH 606LLAC BH ABNH 186HLAC ABNH 246HLAC BG 12 000 3 5 ATNH 126ELFC BR ABNH 306GLAC 48 000 14 1 ATNH 486DLFC ATNH 606DLFC 60 000 17 6 VE AVNH 126ELAC ABNH 486RLAC ABNH 606RLAC ABNH 366GLAC 1Ø 220 240V 50Hz Model name Nominal capacity Btu h kW Power Supply R410A Ceiling Cassette 4 Way Ceiling Concealed Duct Indoor unit R410A 8 Universal System Air Conditioner Introduct...

Page 5: ...V 240V 50Hz 8 3Ø 380V 415V 50Hz Nominal CoolingCapacity in Btu h Ex 18 18 000 Btu h 48 48 000 Btu h Model Type C Cooling Only H HeatPump Indicates that this is a indoor unit for R410A ATN Ceiling cassette type indoor unit ABN Ceiling concealed duct type indoor unit AVN Convertible type indoor unit P T H E C Functions A Basic C Plasma Air Purifier E Elevation Grille F Elevation Grille Plasma Air Pu...

Page 6: ...eatures Benefits 11 2 List of Functions 15 3 Specifications 16 4 Dimensional Drawings 18 5 Wiring Diagrams 22 6 Piping Diagrams 24 7 Operating Instructions 25 8 Installation 29 9 Accessories 36 Ceiling Cassette 4 way R410A Indoor Units ATNH EL FL DL Ceiling Cassette 4 way ...

Page 7: ... Main body Remote control Zero stanby power consumption Jet cool Swirl swing Space control Compact Design and Easy Installation Only about 269mm height in the ceiling is sufficient for installation space A smaller size than a Textile 600X600 is very conve nient for installation Low Noise with 3 dimensional turbo fan The most advanced low noise design The adoption of turbo fan and round type heat e...

Page 8: ... of up to 700 mm is possible creating the ideal solution for perfect water drainage High Ceiling Corresponding Operation According to the height of the installation it provides vari ability of indoor fan motor rpm If the height of installation is low then you can adjust low rpm of indoor fan motor On the other hand if the height of the installation is high you can adjust high rpm of indoor fan mot...

Page 9: ...al 2 4 4 8 100 Improved Comparison of Air Flow Types Comparison of Floor Temp Distribution 20 C Vane 1 Close Open Open Open Open Open Close Close Open Vane 3 Close Open Close Close Open Open Open Close Close Open Vane 2 Open Open Time Close Close Open Vane 4 Vane 1 Vane 3 Vane 2 Time Vane 4 Vane 3 Vane 4 Vane 1 Swirl Swing It is the function for comfort cooling heating operation The diagonal two l...

Page 10: ...res With the help of the slide switch at the back of the LCD wired remote controller selection of the desired thermistor for controlling the unit can be done One thermistor is in the Indoor unit the other one is in the LCD wired remote Group Control It enables to control as much as 16 units with the help of one wired remote controller All the units will follow same setting of temperature other sub...

Page 11: ...erant O O O Fire Alarm Function Forced Operation O O O Group Control O O O High Ceiling Operation O O O Hot Start O O O Jet Cool O O O Plasma Air Purifier O O O Prefilter Washable Anti fungus O O O Self Diagnosis O O O Sleep Mode O O O Soft Dry Operation O O O Swirl Swing O O O Space Control O O O Tele Control Accessory Accessory Accessory Temperature Control O O O Test Function O O O Time Delay S...

Page 12: ...e Net Capacities 3 Due to our policy of innovation some specifications may be changed without notification For outdoor units Single Split See chapter MPS Variable SINGLE A AUUH B Application Split Simultaneous operation See chapter MPS Variable SINGLE A AUUH B 3024 3517 4536 5275 6048 7033 7560 8793 12000 18000 24000 30000 3326 3869 4990 5803 6653 7738 8316 9672 13200 19800 26400 33000 9 5 8 7 336...

Page 13: ... 175 195 237 0 76 1 5 1 8 4 440 6 400 6 400 Turbo Fan Turbo Fan Turbo Fan 1 18 1 460 1 18 1 460 1 18 1 460 40 38 36 43 41 39 50 47 43 Thermistor Thermistor Thermistor 0 275 7 0 275 7 0 275 7 21 21 21 2R12C 2R12C 2R12C 4 0 5 5 6 5 33 1 11 3 33 1 840 288 840 33 1 11 3 33 1 840 288 840 33 1 11 3 33 1 840 288 840 37 4 1 2 37 4 950 30 950 37 4 1 2 37 4 950 30 950 37 4 1 2 37 4 950 30 950 32 70 4 32 70 ...

Page 14: ...570 Unit size 450 Hanging bolt 75 75 600 Ceiling opening 600 Ceiling opening 521 Hanging bolt 39 5 39 5 670 670 5 6 30 ATNH EL unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection 12k ø9 52 18k ø12 7 flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grille 6 Air suction grille 4 Dimensional Drawings ...

Page 15: ...744 Unit size 744 Unit size 658 Hanging bolt 66 66 790 Ceiling opening 790 Ceiling opening 572 Hanging bolt 109 109 30 ATNH FL unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection 24K ø12 7 30K ø15 88 flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grille 6 Air suction grille ...

Page 16: ...size 672 Hanging bolt 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 Unit mm 4 1 2 3 950 950 5 6 30 Number Name Descripition 1 Liquid pipe connection 36k ø6 35 48 60k ø9 52 flare 2 Gas pipe connection 36k ø15 88 48 60k ø19 05flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grille 6 Air suction grille unit mm ...

Page 17: ...Service Manual 21 Ceiling Cassette 4 way PT HEF HFF HDF W D H W mm 670 850 950 H mm 90 90 90 D mm 670 850 950 unit mm Model PT HEF PT HFF PT HDF DIM Unit ...

Page 18: ...N PUMP OUTPUT CN DISP DISPLAY CN FLOAT FLOAT SWITCH INPUT CN PTC PTC HEATER INUT CN REMO REMOTE CONTROL CN GRILL GRILL CONTROL CN CC CENTRAL CONTROL CN PIPE2 DISCHARGE PIPE SENSOR CN ROOM ROOM SENSOR CN PIPE1 PIPE SENSOR CN HVB AIR CLEANER CN UD1 STEP MOTOR CN UD2 STEP MOTOR CN LR1 STEP MOTOR CN LR2 STEP MOTOR 5 Wiring Diagrams 5 1 Wiring Diagrams Product ...

Page 19: ...Service Manual 23 Ceiling Cassette 4 way 5 2 Wiring Diagrams Elevation Grill PT HEF PT HFF HDF ...

Page 20: ... connection port diameter Model ATNH126ELFC ATNH186ELFC ATNH246FLFC ATNH306FLFC ATNH366DLFC ATNH486DLFC ATNH606DLFC Gas 9 52 3 8 12 7 1 2 15 88 5 8 19 05 3 4 Liquid 6 35 1 4 9 52 3 8 unit mm inch Heat Exchanger Turbo Fan lndoor unit Heating Cooling Thermistor 6 Piping Diagrams ...

Page 21: ...set the timer when the desired time is obtained 12 Week Button Used to set a day of the week 13 Program Button Used to set the weekly timer 14 Holiday Button Used to set a holiday of the week 15 Time Set Button Used to set the time of the day and change the time in the weekly timer Function 16 Set and Clear Button Used to set and clear the weekly timer 17 Swirl Button 4 way Used to select swirl mo...

Page 22: ... BUTTON Used to set Sleep Mode Auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature 13 PLASMA OPTIONAL Used to start or stop the plasma purification func tion 14 RESET BUTTON Initialize remote controller 15 2nd F Button Used prior to using modes printed in blue at the bottom of butt...

Page 23: ...down or into water Or else there is worry about trouble failure Do not press hard the Remote Controller button with nail ball point pen or other sharp substance Or else there is worry about trouble failure In case when obstacle such as curtain hides the signal reception part of receiver in between the space interval Remote Controller operation is infeasible Lift grill front panel assembly Bolts fo...

Page 24: ...Then suction grill goes up and enters into the front panel 1 Stop the Air Conditioner Operation 2 Descend the Suction Grill 3 Raise the Suction Grill Depress the stop button Make use of this when you want to stop it at your wished posi tion 4 Stop the Suction Grill during Rising Always stop the air conditioner operation for safety before operating lift grill Take heed _ there is worry about dust f...

Page 25: ...el Screw driver Electric drill Hole core drill ø70mm Flaring Tools set Torque Wrenches Hexagonal Wrench 4mm 5mm Gas leak detector Owner s Manual Thermometer 8 1 Selection of the best location There should not be any heat source or steam near the unit There should not be any obstacles to the air circula tion There should be provision of easy condensate drain Taking into accounting the noise prevent...

Page 26: ...09 Unit mm 840 Unit size 840 Unit size 672 Hanging bolt 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 The dimensions of the paper pattern for installation are the same as those of the ceiling opening dimensions Select and mark the position for fixing bolts and piping hole Decide the position for fixing bolts slightly tilted to the drain direction after considering the ...

Page 27: ...3 8 or M10 Spring washer M10 Air Conditioner body The following parts are local purchasing Hanging Bolt W 3 8 or M10 Nut W 3 8 or M10 Spring Washer M10 Plate Washer M10 Tighten the nut and bolt to prevent unit from falling off CAUTION Air inlet side view Control box cover Indoor power cord Remote controller cord Control box cover fitting screw 2 units Terminal Block in Indoor 1 L 2 N 3 4 Connected...

Page 28: ...nector 6 After tightening these screws install the air inlet grille including the air filter Decoration panel fixing screws hexagon M5 screws Temporally fitting at 2 places Tightening about 10mm Control box cover Piping side Inlet Grille Inlet Grille Inlet Grille Louver motor Decoration panel fixing screws Hexagon M5 screw Air conditioner unit Decoration panel Key holes Display Lead wire for louve...

Page 29: ...fixing screws hexagon M5 screw are included unit box 2 Remove the air inlet grille from the decoration panel Remove the hook for the air inlet grille cord 3 Hook the decoration panel key hole on the screws fixed in step above and slide the panel so that the screws reach the key hole edge 4 Retighten completely two temporarily fixed screws and other two screws Total 4 screws 5 Connect the louver mo...

Page 30: ...own Don t pull suction grill Don t draw out suction grill irrationally Or else there is worry that lift grill drive part is damaged and suction grill might drop down Don t place obstacle in lift passage of lift grill When suction grill descends it automatically stops at a certain distance If there is any obstacle in lift passage suction grill might drop down and there may be caused trouble failure...

Page 31: ...n hose CAUTION The supplied flexible drain hose should not be curved neither screwed The curved or screwed hose may cause a leakage of water 1 50 1 100 MAX 700mm Flexible drain hose Flexible drain hose After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power specialized for the air conditioner As for the method of wiring be guided by the...

Page 32: ...ories For Unit Standard Accessories Paper pattern for installation Owner s manual Installation manual No Item Type Model No Component Parts Wireless remote control 1EA Holder 1EA Battery 2EA Screw 2EA Central control Installation manual PCB 1EA Installation manual Wire assembly 1 2 3 Wireless remote control With air purifying function AHWRHD Central control Simple PQCSA101S0 PI485 Gateway For cent...

Page 33: ...s Benefits 38 2 List of Functions 39 3 Specifications 40 4 Dimensional Drawings 42 5 Wiring Diagrams 45 6 Piping Diagrams 47 7 Operating Instructions 48 8 Installation 49 9 Accessories 53 Ceiling Floor R410A Indoor Units AVNH EL BL KL LL Ceiling Floor ...

Page 34: ...le Installation It can be installed on the floor or ceiling according to your need Low Noise Advanced airflow system and cross flow fan give quiet and more comfortable environment Vertical Airflow Balanced Temperature Distribution The heat distribution graph shows an example of even tem perature distribution achieved by the auto swing airflow Noise Distribution dBA Upward Downward Ceiling Installa...

Page 35: ...zing Filter Drain Pump E S P Control Electric Heater Environment Friendly Refrigerant O O O O Fire Alarm Function Forced Operation O O O O Group Control High Ceiling Operation Hot Start O O O O Jet Cool Plasma Air Purifier Optional Prefilter Washable Anti fungus O O O O Self Diagnosis O O O O Sleep Mode O O O O Soft Dry Operation O O O O Swirl Swing Space Control Tele Control O O O O Temperature C...

Page 36: ...fference of Zero 2 Capacities are Net Capacities 3 Due to our policy of innovation some specifications may be changed without notification 3024 3517 4536 5274 6048 7032 7056 8207 12000 18000 24000 28000 3327 3869 4991 5803 6654 7737 7762 9027 13200 19800 26400 30800 10 0 8 3 6 5 353 293 230 13 5 12 11 477 424 388 15 13 5 12 530 477 424 18 16 14 636 564 494 18 30 16 30 18 30 16 30 18 30 16 30 18 30...

Page 37: ...oor Temperature 7 C 44 6 F DB 6 C 42 8 F WB Interconnecting Piping Length 7 5 m Level Difference of Zero 2 Capacities are Net Capacities 3 Due to our policy of innovation some specifications may be changed without notification 8568 9965 11718 13629 13608 15827 34000 46500 54000 9072 10552 13306 15476 14969 17410 36000 52800 59400 29 27 24 1023 953 847 36 34 32 1271 1207 1136 40 38 36 1412 1341 127...

Page 38: ...n 5Cm More than 20Cm More than 20Cm More than 5Cm More than 20Cm Suspension bolt piping hole Ø45 235 50 100 820 40 Washer Nut Suspension bolts Ceiling Anchor nut Drain piping hole Ø25 Suspension bolts Spring washer Max 12mm Hangen Washer Nut Installation plate Ø70mm Left rear piping Right rear piping Floor 70 120 70 more than 200 Ø70mm Ceiling Installation Floor Installation Air suction grille Air...

Page 39: ...re than 20cm More than eye level More than 20cm R Ceiling installation R More than 20cm More than 20cm Floor Wall installation Rear Side Unit mm 1076 Suspension bolt W3 8 or M10 Center line for the piping hole 265 1236 265 1076 more than 260 265 1236 392 265 468 63 Ø10 Stud Bolt hole 38 175 Installation Plate 250 128 36 36 1076 AVNH BL ...

Page 40: ...uspension bolts Spring washer Max 12mm Hangen Washer Nut 160 320 50 50 A B C 650 320 160 Model 36k 48k 60k Liquid Ø6 35 Ø9 52 Gas Ø15 88 Ø19 05 Note 1 Pipe Specification mm Ceiling Floor 44 Universal System Air Conditioner Dimension Chassis VL Chassis 1750 1655 220 VK Chassis 1350 1255 220 A B C unit mm AVNH KL LL ...

Page 41: ... DOOR STEP MOTOR CN DISPLAY DISPLAY CN U D1 STEP MOTOR CN FLOAT FLOAT SWITCH INUT CN CC CENTRAL CONTROL CN CC CN TH1 IN PIPE THERMISTOR ROOM THERMISTOR CN FLOAT FLOAT S W CN MOTOR CN DPUMP DRAIN PUMP INDOOR MOTOR CAPACITOR FUSE BR BL GN YL RD 3 4 1 L 2 N OPTION 3854A20419D TO OUTDOOR UNIT CN TH2 OUT PIPE THERMISTOR CN ACDC CN UD1 STEP MOTOR CN HVB A CL UNIT HVB CN DISP DISPLAY PCB ASSY GN YL CENTR...

Page 42: ... POWER AC POWER SUPPLY CN TH2 DISCHARGE PIPE SENSOR CN MOTOR BLDC FAN MOTOR OUTPUT CN TH1 PIPE AND ROOM SENSOR CN D PUMP DRAIN PUMP OUTPUT CN HVB AIR CLEANER CN AC DC AC DC CONNECTION CN DOOR STEP MOTOR CN DISPLAY DISPLAY CN U D1 STEP MOTOR CN FLOAT FLOAT SWITCH INUT CN CC CENTRAL CONTROL AVNH KL AVNH LL ...

Page 43: ...t pipe connection port diameter Model Gas Liquid AVNH126ELAC 9 52 3 8 AVNH186BLAC 12 7 1 2 AVNH246BLAC 6 35 1 4 AVNH306BLAC 15 88 5 8 AVNH366KLAC AVNH486LLAC 19 05 3 4 9 52 3 8 AVNH606LLAC unit mm inch Heat Exchanger C F F lndoor unit Heating Cooling Thermistor ...

Page 44: ...ime 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 the Timer operation 10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 12 ROOM TEMPERATURE CHECKING BUTTON Used to check ...

Page 45: ...ipes Gas side Ø9 52 Ø12 7 Ø15 88mm Liquid side Ø6 35mm Insulated drain hose Insulation materials Flaring Tools set Specified Torque Wrenches 1 8kg m Liquid side piping 5 5kg m Gas side piping Spanner Half union Specified Torque Wrenches 1 8kg m Liquid side piping 5 5kg m Gas side piping Hexagonal Wrench 4mm Gas leak Detector Two type B screws Owner s Manual Thermometer Installation Plate VB 2pcs 1...

Page 46: ...loosening 2 screws after removing the Inlet grille from the Indoor unit 2 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 are the same as those of indoor unit respectively R AIR GUIDE L INDOOR UNIT Control Panel 1 2 Clamp Terminal Block in Indoor 1 L 2 N 3 4 Connecte...

Page 47: ...pe air conditioner 2 Minimum thickness of the insulation for the connecting pipe shall be 7mm 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined to the bottomside The unit must be horizontal or declined to the drain hose connected when finished installation The unit must be declined to the bottomside of the unit when finished installation ...

Page 48: ...es 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker wher...

Page 49: ...ain hose 1 EA Clamp 8 EA Washer for hanging backet 6 EA Other Owner s manual Installation manual Optional Accessories For Unit Standard Accessories No Item Type Model No Component Parts Central control Installation manual PCB 1EA Installation manual Wire assembly 1 2 Central control Simple PQCSA101S0 PI485 Gateway For central control PHNFP14A0 ...

Page 50: ...fits 55 2 List of Functions 57 3 Specifications 58 4 Dimensional Drawings 60 5 Wiring Diagrams 61 6 Piping Diagrams 62 7 E S P Setting for 63 8 Operating Instructions 67 9 Installation 69 10 Accessories 74 Ceiling Concealed Duct R410A Indoor Units ABNH HL GL RL Ceiling Concealed Duct ...

Page 51: ...system Accessory Hygienic and easy to clean filter Easy Installation Flexible Duct is easy to install regardless of room size or heater position It can be installed even in a limited space and saves construction cost with slim thickness Innovative Design of Fan and Housing System Low Noise Easy Serviceability Plastic Fan and Housing Assembly Designed for low noise Designed to reduce weight Designe...

Page 52: ...ne is lower than set temperature then the damper is closed On the other hand if the temperature of a particular zone is higher than the set temperature damper is opened to pro vide cooling to the zone and vice versa in the heating mode Polluted Air Purified fresh Air 4 8KV discharge Ionizer Photo Catalyst Coated Mesh Dust particles Odour Dust electrode discharge Odour molecule Generating plasma LG...

Page 53: ...mp Accessory Accessory Accessory E S P Control O O O Electric Heater Accessory Accessory Accessory Environment Friendly Refrigerant O O O Fire Alarm Function Forced Operation O O O Group Control O O O High Ceiling Operation Hot Start O O O Jet Cool Plasma Air Purifier Accessory Accessory Accessory Prefilter Washable Anti fungus O O O Self Diagnosis O O O Sleep Mode O O O Soft Dry Operation O O O S...

Page 54: ... 20 C 68 F DB 15 C 59 F WB Outdoor Temperature 7 C 44 6 F DB 6 C 42 8 F WB Interconnecting Piping Length 7 5 m Level Difference of Zero 2 Capacities are Net Capacities 3 Due to our policy of innovation some specifications may be changed without notification 4536 5276 6048 7034 8064 9379 18000 24000 32000 4990 5803 6653 7738 8870 10317 19800 26400 35200 16 5 14 5 13 583 512 459 18 16 5 14 636 583 4...

Page 55: ...C 68 F DB 15 C 59 F WB Outdoor Temperature 7 C 44 6 F DB 6 C 42 8 F WB Interconnecting Piping Length 7 5 m Level Difference of Zero 2 Capacities are Net Capacities 3 Due to our policy of innovation some specifications may be changed without notification 9072 10552 12096 14069 14112 16414 36000 48000 56000 9979 11607 13306 15476 15523 18055 39600 52800 61600 32 29 26 1130 1024 918 40 35 30 1413 123...

Page 56: ...f e Ø 12 7 Ø 15 88 Ø 6 35 Ø 9 52 18 24k 30 36 Ø 19 05 48 60k k Gas Liquid Model 1 Pipe Specification mm Note C D E F G H J K a b c d e f h i j k l 355 45 5 450 30 87 750 163 260 61 5 243 212 3 243 110 130 52 66 81 30 158 5 355 45 5 450 30 87 830 186 298 229 5 243 232 243 116 160 53 59 81 19 158 5 477 56 590 30 120 1006 294 380 215 279 241 279 185 168 51 98 83 17 172 Capacity A B 932 882 1232 1182 ...

Page 57: ...2 N 3 4 5 CN OUT CN PTC PTC HEATER VENTILATION E HEATER CN ZONE ZONE CONTROL CN FLOAT FLOAT S W CONNECTOR NUMBER LOCATION CN POWER AC POWER SUPPLY CN MOTOR BLDC FAN MOTOR OUTPUT CN D PUMP DRAIN PUMP OUTPUT CN DISP RF REMOTE CONTROL CN FLOAT FLOAT SWITCH INUT CN ZONE ZONE CONTROL OUTPUT CN CC CENTRAL CONTROL OUTPUT CONNECTOR NUMBER LOCATION CN PIPE1 PIPE SENSOR CN PIPE2 DISCHAGE PIPE SENSOR CN REMO...

Page 58: ...g Diagrams Refrigerant pipe connection port diameter Model ABNH186HLAC ABNH246HLAC ABNH306GLAC ABNH366GLAC ABNH486RLAC ABNH606RLAC Gas 12 7 1 2 15 88 5 8 19 05 3 4 9 52 3 8 Liquid 6 35 1 4 unit mm inch Heat Exchanger Sirocco Fan lndoor unit Heating Cooling Thermistor ...

Page 59: ...ording to the state of dampers by micom 2 Position F H Maximum E S P setting Fan speed doesn t vary according to the opening Closing of dampers 3 Position V L Minimum E S P setting Fan speed is varied according to the state of dampers by micom Maximum 18 24k 8mmAq 30 36k 10mmAq 48 60k 15mmAq Minimum All 0mmAq 3 Move the slide switch to set position 4 Close the rear cover and check if it works norm...

Page 60: ... is two Digit only If the range selection is above 100 then the third digit will appear in the screen as shown Preheat ZONE Operation unit Program set Room Temp MED LO AUTO JET Heater Defrost Filter Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP HI AUTO SWING Time Preheat ZONE Operation unit Program set Room Temp MED...

Page 61: ...1 ABNH366GLAC Med 29 1024 240 238 237 235 230 220 Low 26 5 936 245 245 243 243 240 240 High 40 1412 230 225 220 215 205 200 190 180 160 ABNH486RLAC Med 35 1235 250 245 240 235 230 220 215 210 200 Low 30 1059 255 255 255 250 245 240 235 230 225 High 50 1766 185 180 174 162 154 140 90 5 1 ABNH606RLAC Med 45 1589 210 205 199 191 189 180 155 138 110 Low 40 1423 230 225 219 215 210 205 193 180 171 Note...

Page 62: ... 978 26 5 936 ABNH306GLAC Med 155 27 954 26 3 929 26 1 922 25 8 911 24 8 876 23 812 Low 190 21 742 20 8 735 20 6 727 20 4 720 20 4 720 20 706 High 1 42 1483 40 1413 38 1342 35 5 1254 33 5 1183 32 1130 ABNH366GLAC Med 220 39 1377 37 1307 35 1236 33 1165 31 1095 29 1024 Low 240 34 1201 32 5 1148 31 1095 29 5 1042 27 954 26 5 936 High 200 49 1730 47 4 1675 44 9 1584 43 3 1529 41 7 1472 40 1412 38 6 1...

Page 63: ...the Electric Heater 6 Fan Speed Button Used to set desired fan speed 7 Operation Mode Selection Button Used to select the operation mode Auto Operation Mode Cooling Operation Mode Soft Dry Operation Mode Heating Operation Mode except cooling model 8 Timer Cancel Button Used to cancel the timer 9 Timer Set Button Used to set the timer when the desired time is obtained 10 Week Button Used to set a d...

Page 64: ...ormal operation ex elec tronic quick start ELBA inverter type fluorescent lamp Signal transmitter Transmits the signals to the signal receptor 1 FAN Operation Button Used to circulate room air without cooling or heat ing 2 Cooling Operation Button 3 Soft Dry Operation Button Used to dehumidify without overcooling 4 Heating Operation Button Heat pump model only 5 Timer Set Button Used to set the ti...

Page 65: ...Flaring Tools set Torque Wrenches Hexagonal Wrench 4mm 5mm Gas leak detector Owner s Manual Thermometer 9 1 Selection of the best location Install the air conditioner in the location that satisfies the fol lowing conditions The place shall easily bear a load exceeding four times the indoor unit s weight The place should have enough area for inspection as shown in figure The place where the unit sh...

Page 66: ...y X 4 A B C 1 3 mm D G H I E F NOTE Throughly study the following installation locations 1 In such places as restaurants and kitchens considerable amount of oil steam and flour adhere to the fan the fin of the heat exchanger resulting in heat exchange reduction spraying dispersing of water drops etc In these cases take the following actions Make sure that the ventilation fan for smoke collecting h...

Page 67: ...rd individually according to the outdoor unit connection Ensure that the color of the wires of outdoor unit and the terminal No are the same as those of indoor unit respectively Clamping of cables 1 Arrange 2 power cables on the control panel 2 First fasten the steel clamp with a screw to the inner boss of control panel 3 For the cooling model fix the other side of the clamp with a screw strongly ...

Page 68: ...ermal insulator for piping Local supply Hose crip for thermal insulator Local supply Union for liquid pipe Refrigerant pipe and thermal insulator Local supply Union for gas pipe Thermal insulator for refrigerant pipe Local supply Hose crip for thermal insulator Local supply 9 5 Checking the Drainage 1 Remove the Air Filter 2 Check the drainage Spray one or two glasses of water on the evapo rator E...

Page 69: ... Pump 1 50 1 100 1 50 1 100 Front of view Alway lay the drain with downward inclination 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe CORRECT Install the P Trap or U Trap to prevent a water leakage caused by the blocking of intake air filter Applied U Trap Dimension 1 Decline Installation of ind...

Page 70: ...l No Component Parts Wireless remote control 1EA Holder 1EA Battery 2EA Screw 2EA Plasm Air Purifier Kit 1EA Wired Remote Control 1EA Factory sypplied Zone control PCB Durchased Locally Damper Damper Moter thermostat Drain Pump Assembly 1EA Central control Installation manual PCB 1EA Installation manual Wire assembly 1 2 3 4 5 6 Wireless remote control With air purifying function AHWRHS AHWRHD LCD...

Page 71: ...Service Manual 75 MPS Variable SINGLE A II Outdoor Units Introduction 76 MPS Variable SINGLE A 78 ...

Page 72: ...essor AUUH608C Outdoor unit Indoor unit Type Model name AUUH126C Ceiling Cassette ATNH126ELFC Ceiling Floor AVNH126ELAC Ceiling Cassette ATNH186ELFC AUUH186C Ceiling Floor AVNH186BLAC Ceiling Concealed Duct ABNH186HLAC Ceiling Cassette ATNH246FLFC AUUH246C Ceiling Floor AVNH246BLAC Ceiling Concealed Duct ABNH246HLAC Ceiling Cassette ATNH306FLFC AUUH306C Ceiling Floor AVNH306BLAC Ceiling Concealed ...

Page 73: ...ic Standard Phase Volts Freq 6 1Ø 220V 240V 50Hz 8 3Ø 380V 415V 50Hz Indicates that this is a R410A outdoor unit Model Type H MPS Variable Single A W MPS inverter Single A Nominal Cooling Capacity in Btu h 18 18 000 Btu h 12 12 000 Btu h 24 24 000 Btu h 30 30 000 Btu h 36 36 000 Btu h 48 48 000 Btu h 60 60 000 Btu h ...

Page 74: ...e SINGLE A Contents 1 Features Benefits 79 2 Specifications 81 3 Dimensional Drawings 85 4 Wiring Diagrams 89 5 Piping Diagrams 93 6 Electric Characteristics 96 7 Operation Range 97 8 Installation 98 R410A Outdoor Units AUUH C MPS Variable SINGLE A ...

Page 75: ...he only compressor is working with ON OFF cycles Comfort Control Conventional Operation The compressor must turn on and off to reach desired temperature setting A large portion of power is used during restarting This causes unnecessary power consumption MPS Multi Power System Control This is a power saving system with two rotary compressors of different capacity 60 40 operating an A C at high powe...

Page 76: ...or is prevented by reducing out door fan speed It can prevent frosting of evaporator and keep cooling operation on Heating Capacity Improved Using MPS technology LG s air conditioning sys tem achieved world s best wide range of opera tion which is from 12 120 in cooling mode and from 12 138 in heating mode to give quicker cooling and heating Compared cooling capacity Standard heating capacity 120 ...

Page 77: ...Units Nominal Capacity Cooling Btu h W Heating Btu h W Nominal Input Cooling W Heating W EER Btu h W W W COP Btu h W W W ABNH186HLAC ABNH246HLAC ABNH306GLAC AUUH186C AUUH246C AUUH306C 18 000 24 000 32 000 5 275 7 033 9 379 19 800 26 400 35 200 5 803 7 738 10 317 1 880 2 500 4 250 2 060 2 750 3 670 9 57 2 81 9 60 2 81 7 53 2 21 9 61 2 82 9 60 2 81 9 59 2 81 Nominal Capacity and Nominal Input For co...

Page 78: ...nits Nominal Capacity Cooling Btu h W Heating Btu h W Nominal Input Cooling W Heating W EER Btu h W W W COP Btu h W W W ABNH366GLAC ABNH486RLAC ABNH606RLAC AUUH368C AUUH488C AUUH608C 36 000 48 000 56 000 10 552 14 069 16 414 39 600 52 800 61 600 11 607 15 476 18 055 4 050 5 840 6 800 4 130 5 630 6 440 8 89 2 61 8 22 2 41 8 23 2 41 9 59 2 81 9 38 2 75 9 57 2 80 For combination indoor units outdoor ...

Page 79: ... E V 0 276 7 0 0 276 7 0 0 276 7 0 0 276 7 0 18 18 18 18 2R 24C 2R 28C 2R 36C 2R 36C OBM 2012P2 IC28640LG28P IC28640LG28P IC28640LG28J 25 5 67 2 67 2 67 2 1 5 370 6 370 6 370 6 370 Propeller Propeller Propeller Propeller 1 15 7 400 1 18 1 460 1 18 1 460 1 18 1 460 Side Discharge Side Discharge Side Discharge Side Discharge 26 918 58 2048 58 2048 53 1872 47 52 52 53 Inversion cycle Inversion cycle ...

Page 80: ...10A R410A R410A L E V L E V L E V 0 276 7 0 0 276 7 0 0 276 7 0 18 17 17 2R 36C 2R 52C 2R 52C 5BM 3018P2 2 AMR071B9 2 AMR071B9 2 47 2 2 70 2 70 2 2 0 400 6 370 6 370 Propeller Propeller Propeller 2 15 7 400 2 18 1 460 2 18 1 460 Side Discharge Side Discharge Side Discharge 32 1130 2 53 1872 2 53 1872 2 52 57 57 Invertion cycle Invertion cycle Invertion cycle 1 4 6 35 3 8 9 52 3 8 9 52 5 8 15 88 3 ...

Page 81: ... MPS Variable SINGLE A 3 Dimensional Drawings AUUH126C W L2 L3 L1 D H L4 L5 Gas side 3 way valve Liquid side 2 way valve MODEL AUUH126C DIM unit W mm 770 H mm 540 D mm 245 L1 mm 287 L2 mm 64 L3 mm 518 L4 mm 10 L5 mm 100 ...

Page 82: ...ischarge grille W W mm 870 870 H mm 655 800 D mm 320 320 L1 mm 370 370 L2 mm 25 25 L3 mm 340 340 L4 mm 775 775 L5 mm 25 25 L6 mm 546 546 L7 mm 162 162 L8 mm 162 162 L9 mm 54 54 L10 mm 74 5 74 5 L11 mm 79 79 mm Ø6 35 Ø6 35 mm Ø12 7 24k Ø12 7 30k Ø15 88 AUUH186C AUUH246C 306C Model Dimensions ...

Page 83: ...E A AUUH368C 76 5 4 holes for anchor bolts 320 Unit mm 64 160 160 550 1060 360 340 320 1030 870 4 2 3 1 Number Name Descripition 1 Liquid side service valve mm Ø6 35 2 Gas side service valve mm Ø15 88 3 Air discharge grill 4 Control Cover ...

Page 84: ... L10 L5 W D L1 L2 L3 Gas side 3 way valve Control cover Liquid side 3 way valve 4 hole for anchor bolts W mm 900 H mm 1 165 D mm 370 L1 mm 460 L2 mm 45 L3 mm 410 L4 mm 1 135 L5 mm 30 L6 mm 550 L7 mm 175 L8 mm 175 L9 mm 112 L10 mm 120 L11 mm 83 mm Ø9 52 mm Ø19 05 AUUH488C AUUF608C Model Dimensions ...

Page 85: ...Service Manual 89 MPS Variable SINGLE A 4 Wiring Diagrams AUUH126C AUUH186C ...

Page 86: ...Electronic Control Device 90 Universal System Air Conditioner MPS Inverter SINGLE A AUUH246C AUUH306C ...

Page 87: ...Electronic Control Device Service Manual 91 MPS Inverter SINGLE A AUUH368C AUUH488C ...

Page 88: ...92 Universal System Air Conditioner MPS Variable SINGLE A AUUH608C ...

Page 89: ...ield Piping Reversing Valve Refrigerant Flow Cooling Heating Capillary AUUH126C AUUH186C 246C Thermistor Thermistor Accumulator Constant Compressor Heat Exchanger Gas Ø 12 7mm Liquid Ø 6 35mm OUTDOOR UNIT Field Piping Reversing Valve Refrigerant Flow Cooling Heating Thermistor Thermistor High Pressure S W Thermistor Thermistor LAK Thermistor L E V ...

Page 90: ...t Flow Cooling Heating Gas Ø15 88mm Liquid Ø6 35mm Field Piping Thermistor LAK Thermistor Thermistor High Pressure S W Thermistor AUUH368C OUTDOOR UNIT Thermistor L E V Accumulator Constant Compressor 2 Heat Exchanger Check Valve Check Valve Reversing Valve Refrigerant Flow Cooling Heating Gas Ø15 88mm Liquid Ø6 35mm Field Piping Thermistor LAK Thermistor Thermistor Thermistor High Pressure S W ...

Page 91: ... Gas Ø19 05mm Liquid Ø9 52mm Field Piping Thermistor Receiver L E V Thermistor LAK Thermistor Thermistor Thermistor High Pressure S W AUUH608C OUTDOOR UNIT Constant Compressor Accumulator Heat Exchanger Reversing Valve Refrigerant Flow Cooling Heating Gas Ø19 05mm Liquid Ø9 52mm Field Piping Thermistor Thermistor LAK Thermistor Thermistor Thermistor Receiver L E V High Pressure S W ...

Page 92: ...ing current RLA MSC Models Power Supply Compressor OFM IFM Indoor Unit Outdoor Unit Hz Volts MCA MFA LRA RLA kW FLA kW FLA ATNH126ELFC AUUH126C 8 0 15 24 5 7 0 026 0 51 0 018 0 35 AVNH126ELAC 7 9 15 5 7 0 51 0 018 0 23 ATNH186ELFC 12 3 15 8 9 0 7 0 022 0 43 ABNH186HLAC AUUH186C 12 8 15 33 8 8 9 0 067 0 7 0 118 0 92 AVNH186BLAC 12 1 15 8 9 0 7 0 030 0 23 ATNH246FLFC 15 4 20 11 3 0 7 0 040 0 53 ABNH...

Page 93: ...mperature Heating Power source voltage Voltage at starting Rating 10 Min 85 of rating 46 114 8 10 14 14 57 2 24 75 2 Indoor air temperature C W B F Outdoor air temperature C D B F Standard operation Indoor air temperature C D B F Standard operation Outdoor air temperature C W B F 15 5 59 9 14 57 2 28 82 4 10 14 ...

Page 94: ...onsult local codes regarding rooftop mounting More than 30cm Fence or obstacles More than 70cm More than 50cm More than More than 30cm 30cm More than 30cm Sunroof More than 50cm Service space More than 30cm Fence or obstacles More than 70cm More than 50cm More than More than 30cm 30cm More than 30cm Sunroof Ensure that the space around the back is more than 30cm and sides is more than 30cm The fro...

Page 95: ... 4 6 35mm 7 5 50 5 30 35 24k Btu h 1 2 12 7mm 1 4 6 35mm 7 5 50 5 30 35 36k Btu h 5 8 15 88mm 1 4 6 35mm 7 5 50 5 30 40 48k Btu h 3 4 19 05mm 3 8 9 52mm 7 5 50 5 30 75 Chargeless 30m 60k Btu h 3 4 19 05mm 3 8 9 52mm 7 5 50 5 30 80 Chargeless 30m 30k Btu h Extra refrigerant Extended length Rated length x Additional refrigerant 5 8 15 88mm 1 4 6 35mm 7 5 50 5 30 35 Pipe Size Length m Elevation m Add...

Page 96: ...TU h 60k BTU h 1 Phase 1 0mm 2 5mm 2 5mm 2 5mm 3 Phase 2 5mm2 3 0mm2 3 0mm2 NORMAL CROSS SECTIONAL AREA POWER INPUT Terminals on the indoor unit Terminals on the outdoor unit 1 L 2 N 2 N 3 1 L 2 N 3 4 5 1 L 4 5 WARNING Make sure that the screws of the terminal are free from looseness Terminal Block Outdoor Unit Terminal Block Indoor Unit Power Input R S T N 1 L 2 N 3 1 L 2 N 3 4 5 1 All wiring mus...

Page 97: ...Troubleshooting Guide Service Manual 101 III Troubleshooting Guide Self diagnosis Function 102 Electronic Parts Troubleshooting Guide 103 ...

Page 98: ...or terminates after powering off Excess of capacity Where capacity of the outdoor unit differs from capacity of the indoor unit Error display 3 Error of the discharge temperature sensor is processed in following method For sensor open process check 4 minutes after COMP operation and 10 minutes after power application For short process check and process from the time when power is applied Outdoor u...

Page 99: ...PCB Ass y about AC220V 240V Check the main power NO YES Check the Fuse of outdoor PCB Ass y Chek the connecting state of wires Replace the PCB Ass y NO Is the connection of cable between indoor and outdoor unit ringht Indoor Outdoor 1 L 1 L 2 N 2 N 3 3 NO YES MPS units start at three minutes after main power turning on 00 No Error ON 01 Indoor Room themistor error 1time OFF 02 Indoor in piping sen...

Page 100: ... LCD screen replace battery Check the contact of CN DISP1 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 DISP1 DC 5V When the detect switch double key inside the remote controlle...

Page 101: ... close as to be effected by the temperature of Heat Exchanger EVA When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped Check the indoor temperature sensor is disconnected or not About 10kΩ at 25 C Check Relay RY COMP for driving compressor When the power About AC220V 240V is applied to the connecting wire terminal s...

Page 102: ...an 28 C Check Outdoor Unit Check the connector of intake and pipe sensor thermistors Check the indoor room temperature is disconnected or not about 10KΩ at 25 C Check the indoor pipe temperature is disconnected or not about 5KΩ at 25 C Turn ON Main Power Check the DC voltage on the PWB ASS Y The details of check are as followings Check point Between two pin of DC part in relay for COMP Comp ON Bel...

Page 103: ...n of CN FAN or CN MOTOR Check the Fan Motor Check the Fuse AC250V T2A Turn ON Main Power Check the related circuit of indoor Fan Motor The pin of Micom and the part for driving SSR Check the pattern Check the SSR SSR Open Indoor Fan Motor never operate SSR short Indoor Fan Motor always operates in case of ON or OFF The voltage of PIN NO 1 blue and 3 yellow of CN FAN or CN MOTOR About AC 160V over ...

Page 104: ...e is detected when rotating the Vertical Louver with hands Normal Check the connecting condition of CN U D Connector Check the soldering condition on PWB of CN U D Connector If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver Check the operating circuit of the Vertical Louver Confirm that ...

Page 105: ...Electronic Control Device Service Manual 109 IV Electronic Control Device Ceiling Cacsette Type 110 Ceiling Duct Type 111 Celing Floor 113 ...

Page 106: ...Electronic Control Device 110 Universal System Air Conditioner Main P C B ASM Ceiling Cassette Type ...

Page 107: ...Electronic Control Device Service Manual 111 Ceiling Duct Type BH Series ...

Page 108: ...Electronic Control Device 112 Universal System Air Conditioner BG BR Series ...

Page 109: ...Electronic Control Device Service Manual 113 VE Series AC DC Ceiling Floor C ...

Page 110: ...Electronic Control Device 114 Universal System Air Conditioner VB VK VL Series ...

Page 111: ...Electronic Control Device Service Manual 115 V Schematic Diagram Ceiling Cacsette Type 116 Ceiling Duct Type 117 Celing Floor 118 ...

Page 112: ...Electronic Control Device 116 Universal System Air Conditioner Schematic Diagram Ceiling Cassette Type ...

Page 113: ...Electronic Control Device Service Manual 117 Schematic Diagram Ceiling Duct Type ...

Page 114: ...Electronic Control Device 118 Universal System Air Conditioner Schematic Diagram Ceiling Floor ...

Page 115: ...Functional Description Service Manual 119 VI Functional Description Ceiling Cacsette Type 120 Ceiling Duct Type 122 Celing Floor 125 Outdoor Unit 128 ...

Page 116: ...ontroller control Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the remote con troller and the operation diagram is as following Swirl Swing Control Vane 2 4 is almost vane closed while vane1 3 is opened Vane 1 3 and vane 2 4 turn over minutely Intake Air Temperature Thermo On SET TEMPERATURE 0 5 C Thermo Off SET TEMPERATURE 0 5 ...

Page 117: ...owing 21 C 23 C 32 C 29 C 17 C Pipe temperature OFF Indoor fan speed LO LOW LOW SELECTED FAN LOW LOLOW COMP ON COMP Outdoor fan Indoor fan 4way valve Setting Temperature 2 C Unit Sensing 0 C Remo Sensing Thermo ON Setting Temperature 4 C Unit Sensing 2 C Remo Sensing Thermo OFF Indoor unit Heat Exchanger temperature 1min Minimum 3min 1min 3min Setting fan spped Setting fan spped Setting fan spped ...

Page 118: ...speed fan speed fan speed COMPRESSOR ON OFF ON OFF ON INDOOR FAN Low Low Soft Dry Operation The indoor fan speed is automatically set to the low so the shift of the indoor fan speed is impossible because of already being set to the best speed for Dry Operation by microcontroller control Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting ...

Page 119: ...C Remo Sensing Thermo OFF Indoor unit Heat Exchanger temperature 1min Minimum 3min 1min 3min Setting fan spped Setting fan spped Setting fan spped ON ON ON ON Low Low Low Low Low Lo Off Off Off ON OFF OFF Low fan during 10sec A A B B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 40 C fan operates at low speed when it becomes lower than 40...

Page 120: ...an does not rotate until the indoor unit Hex Exchanger temperature reaches 27 C The operation diagram is as following ON ON Off Off Low Low 1min 1min 20 C 27 C 33 C Indoor unit Heat Exchanger temperature Setting fan spped Setting fan spped Compressor Outdoor fan Indoor fan 4way Valve ON ...

Page 121: ...ry Operation by microcontroller control Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the remote controller and the operation diagram is as following Intake Air Temperature SET TEMPERATURE 0 5 C Thermo ON SET TEMPERATURE 0 5 C Thermo OFF More than More than 3 minutes 3 minutes Selecting Selecting Selecting fan speed fan speed fan...

Page 122: ...sing 2 C Remo Sensing 1 C Flore Install Thermo OFF Indoor unit Heat Exchanger temperature 1min Minimum 3min 1min 3min Setting fan spped Setting fan spped Setting fan spped ON ON ON ON Low Low Low Low Lo Low Off Off Off ON OFF OFF Low fan during 10sec A A B B Intake Air Temperature Compressor off interval While the indoor Heat Exchanger temperature is higher than 35 C fan operates at low speed when...

Page 123: ... not rotate until the indoor unit Hex Exchanger temperature reaches 21 C The operation diagram is as following ON ON Off Low Low 1min 21 C 17 C 32 C Indoor unit Heat Exchanger temperature Setting fan spped Setting fan spped Compressor Outdoor fan Indoor fan 4way Valve ON ...

Page 124: ...mode Heating mode Stop state Compressor Fan Phase control Phase control After 30sec Off EEV 4 way valve Off On After 30sec Off Heating_ On Off 1 Comp Step Control 2 Comp On Off 1 Comp Step Control 2 Comp Stop Target Suction super heat and Discharge Temp Control Target Suction super heat and Discharge Temp Control After 60sec Full Opne Capacity Btu h MODE STEP1 STEP2 STEP3 B COMP A COMP B A COMP 12...

Page 125: ... Step Down Cooling Heating Standard Step Indoor Temp Outdoor Temp 2 Operation field for Temp The standard field Operating COMP standard step Hysterisis field When 1_comp_operating_field move the standard field owing to the change of temperature or the oppo site situation The comp will be operated in the previous step 1STEP DOWN field Operating step is lower one step than standard step ...

Page 126: ...ting indoor unit 2 Heating mode In heating mode It is used the degree of superheat control that be regular the difference with Compressor Suction pipe Temp ACCUM and pipe Temp of outdoor_unit The degree of superheat Compressor Suction pipe_Temp ACCUM The pipe Temp of outdoor_unit 3 EEV control a Superheating control Cooling Mode Superheating T superheating Tout Tin 2 C LEV pulse up T superheating ...

Page 127: ...rge pipe is decided for indoor_unit outdoor_unit and Comp operation Step the difference indoor and outdoor 1 4 Fan control 1 STANDARD STEP Stop Operation 2 Step 2 Phase control The low Temp of outdoor Cooling The high Temp of outdoor heating Control fan On Off or Decrease the volume of fan s wind 1 COOLING 2 HEATING Air circulation FULL SPEED SPEED SLOPE OPTION 40 OFF SET POINT Outdoor Temp or Out...

Page 128: ... 3 When the defrosting is started unit follows the defrost algorithm 4 In case the mode is changed from heating to cooling the outdoor unit resets OFF 3 minutes ON The Reversing valve is changed after that the comp of outdoor_unit will be Off for 30 seconds 5 If the indoor units switched OFF by the REMOCON in the heating mode The Reversing valve will be stopped after that the comp of outdoor unit ...

Page 129: ...OCESS 1 The previous situation of outdoor unit maintains for 20 second just before changing defrost control 2 The LEV phase of indoor unit open to the 500 phase full open 4 Changing the cooling mode of 4WAY VALVE Direct the fan of indoor unit to stop 4WAY VALVE is operated to convert the process to cooling irrespective of the cycle s start stop 5 Stand by for 5 second 6 The FAN of outdoor unit is ...

Page 130: ... The particular contents of Low ambient control process The fan of outdoor_unit operates at Full speed when the COMP is On for 3 seconds OPTION The fan of outdoor_unit control is controlled according to the Temp of outdoor_unit and the pipe temp of outdoor_unit OPTION If the established base Temp is more than PRESET TEMPERATURE The fan of outdoor_unit will be operated at HIGH Speed If the establis...

Page 131: ...time of the COMP ON OFF 2 The COMP OIL Equalizing Logic is not working in the Defrost mode 3 When the COMP OIL Equalizing Control of the outdoor unit is started 1 The outdoor unit transmits a message of COMP OIL Equalizing Control to the indoor_unit in 2 minutes 2 After the maximum 5 seconds the indoor unit ignores the message for 2 minutes as per the LOW Temp sensing function The LOW Temp sensing...

Page 132: ...OR 80 C LEV OPEN 10PULSE MIN 2 The Discharge Temp of the outdoor_unit_COMP COMP TOTAL DISCHARGE SENSOR 90 C LEV OPEN 20PULSE MIN 3 The Discharge Temp of the outdoor_unit_COMP COMP TOTAL DISCHARGE SENSOR 80 C LEV control according to regular control logic 4 The Discharge Temp of the outdoor_unit_COMP COMP TOTAL DISCHARGE SENSOR 105 C Stop the COMP at once and remains stopped for 3 minutes sign the ...

Page 133: ...ion according to abnormal sensing Temp 3 3 2 The particular contents of Abnormal temperature sensing function 1 System will stop and display the error code if this situation occurs irrespective of system ON OFF 3 4 High Low Pressure Switch Function 1 If the outdoor_unit has the continuous incoming signal of power Cycle according to the operation of High Low Pressure Switch System will stop at once...

Page 134: ...Outdoor Units 138 Universal System Air Conditioner ...

Page 135: ...Service Manual 139 VI Exploded View Replacement Parts List Indoor Unit 140 Outdoor Unit 159 Panel Assembly Front 173 ...

Page 136: ...View Replacement Parts List 140 Universal System Air Conditioner 354211 249951 266090 268714 266012 35211A 352118 330870 158591 159830 263230 1 263230 2 263230 3 354211 ATNH EL Ceiling Cassette Type Indoor Unit ...

Page 137: ...Exploded View Replacement Parts List Service Manual 141 346811 130411 359011 W0CZZ 267110 2 267110 1 130911 1 130911 2 W48300 152510 2 152510 1 ...

Page 138: ...loded View Replacement Parts List 142 Universal System Air Conditioner 249951 266090 268714 330870 159830 354211 1 158591 352118 1 266012 552111 352118 2 354211 2 349490 263230 2 263230 1 263230 3 ATNH FL ...

Page 139: ...Exploded View Replacement Parts List Service Manual 143 346810 130411 359012 W0CZZ 267110 2 267110 1 130911 1 130911 2 WH8300 152150 2 152150 1 ...

Page 140: ...ed View Replacement Parts List 144 Universal System Air Conditioner 266090 130411 354211 1 158591 330870 352118 1 266012 552111 159830 354211 2 249951 268714 263230 1 249941 263230 2 263230 3 352118 2 ATNH DL ...

Page 141: ...Exploded View Replacement Parts List Service Manual 145 130411 346810 359012 130911 1 352150 2 W0CZZ 130911 2 267110 1 267110 2 352150 ...

Page 142: ...BLY 6711A90076J 6711A90076J R 330870 PAN ASSEMBLY DRAIN 3087A10002A 3087A10002A R 346811 MOTOR ASSEMBLY AC 4681AC2026E 4681AC2026C R 35211A TUBE ASSEMBLY SUCTION INDOOR 5211A20243M 5211A20243N R 354211 EVAPORATOR ASSEMBLY BENDING 5421A10006A 5421A10006A R 359011 FAN TURBO 5900A10004A 5900A10004A R 352118 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20241S 5211A20241R R W0CZZ CAPACITOR FILM BOX 3H00660N 3H00...

Page 143: ...7A10010B 3087A10010B R 346810 MOTOR AC 4681A20051Z 4681A20051W R 349490 ORIFICE ASSEMBLY 4949A10007B 4949A10007B R 352118 1 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20251Q 5211A20251U R 352118 2 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20251K 5211A20251K R 354211 1 EVAPORATOR ASSEMBLY BENDING 5421A10016G 5421A10016G R 354211 2 EVAPORATOR ASSEMBLY BENDING 5421A10016H 5421A10016H R 359012 FAN TURBO 5901A10036A ...

Page 144: ...6Z 4681A20006H 4681A20006M R 354211 1 EVAPORATOR ASSEMBLY BENDING 5421A10016A 5421A10016A 5421A10016A R 354211 2 EVAPORATOR ASSEMBLY BENDING 5421A10016B 5421A10016B 5421A10016B R 552111 TUBE ASSEMBLY CAPILLARY 5211A20316S 5211A20316R 5211A20316R R 352118 1 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20251R 5211A20251A 5211A20251A R 352118 2 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20251B 5211A20251B 5211A20251B ...

Page 145: ...ement Parts List Service Manual 149 346810 359012 2 354210 552111 152302 352118 330870 W0CZZ 268714 249951 336610 2 267110 1 336610 1 359012 1 336610 1 263230 1 263230 2 263230 3 ABNH HL ABNH GL Ceiling Concealed Duct Type ...

Page 146: ...d View Replacement Parts List 150 Universal System Air Conditioner 152302 268714 346810 336610 1 336610 2 359012 2 359012 1 354210 249951 330870 W0CZZ 263230 1 263230 3 552111 352118 263230 2 267110 1 ABNH RL ...

Page 147: ...BE ASSEMBLY MENIFOLD INDOOR 5211A20465G 5211A20465G R 552111 TUBE ASSEMBLY CAPILLARY 5211A20466M 5211A20466N R 330870 DRAIN PAN ASSEMBLY 3087A10008B 3087A10008B R 249951 CASE ASSEMBLY CONTROL 4995A14002S 4995A14002V R 268714 PWB PCB ASSEMBLY MAIN 6871A00089C 6871A00089D R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A10008D 6711A10008D R 152302 FILTER MECH A C 5230A30001M 5230A30001M R 263230 1 THERMIS...

Page 148: ...7A R 552111 TUBE ASSEMBLY DISTRIBUTOR 5211A20693E 5211A20693E R 352118 TUBE ASSEMBLY MENIFOLD INDOOR 5211A20416J 5211A20416J R 330870 DRAIN PAN ASSEMBLY 3087A10008A 3087A10008A R 249951 CASE ASSEMBLY CONTROL 4995A14002T 4995A14002U R 268714 PWB PCB ASSEMBLY MAIN 6871A00090B 6871A00090C R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A10008D 6711A10008D R 152302 FILTER MECH A C 5230A30001L 5230A30001L R ...

Page 149: ...52111 TUBE ASSEMBLY DISTRIBUTOR 5211A21416A 5211A21417A R 352118 TUBE ASSEMBLY MENIFOLD INDOOR 5211A21333B 5211A21334B R 330870 DRAIN PAN ASSEMBLY 3087A20025A 3087A20025A R 249951 CASE ASSEMBLY CONTROL 4995A14002W 4995A14002X R 268714 PWB PCB ASSEMBLY MAIN 6871A00090D 6871A00090E R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A10008D 6711A10008D R 152302 FILTER MECH A C 5230A30017A 5230A30017A R 263230...

Page 150: ...ir Conditioner Ceiling Floor Type 152302 135313 137211 135310 267110 W4810 352150 147581 147582 145200 131410 W0CZZ 266000 330870 268715 268716 266000 733010 268712 146811 354212 35211B 346810 359011 330780 342800 135500 131410 263230 2 263230 1 249951 AVNH EL ...

Page 151: ...cement Parts List Service Manual 155 130911 35211A 263230 1 263230 3 263230 2 342800 359011 152302 330870 354210 352115 249951 268714 W0CZZ 266000 1 346810 268712 235450 146811 266000 2 352150 267110 137211 135314 AVNH BL ...

Page 152: ...280A20004A R 346810 MOTOR ASSEMBLY AC 4681A20131A R 35211B TUBE ASSEMBLY TUBING 5211A21217B R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A25012B R 352116 TUBE ASSEMBLY EVAPORATOR OUT 5211A22007B R 352150 HOSE ASSEMBLY DRAIN 5251AR2575Q R 354212 EVAPORATOR ASSEMBLY FINAL 5421A10044B R 359011 FAN ASSEMBLY CROSS FLOW 5901A20008E R 733010 PLATE ASSEMBLY INSTALL 3301A10002A R W0CZZ CAPACITOR FILM BOX 3H006...

Page 153: ...Y 3087AP7233A 3087AP7233A 3087AP7233A R 342800 BEARING 3H02821B 3H02821B 3H02821B R 346810 MOTOR ASSEMBLY AC 4681AP2306M 4681AP2306N 4681AP2306P R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211AP2810Q 5211AP2810R 5211AP2810R R 35211A TUBE ASSEMBLY SUCTION INDOOR 5211AP2813G 5211AP2813H 5211AP2813J R 354210 EVAPORATOR ASSEMBLY FIRST 5421AP2812B 5421AP2812A 5421AP2812A R 359011 FAN ASSEMBLY CROSS FLOW 5901...

Page 154: ...95A10159U 4995A10159S 4995A10159T R 263230 1 THERMISTOR ASSEMBLY 6323A30004A 6323A30004A 6323A30004A R 263230 2 THERMISTOR ASSEMBLY 6323AQ3226G 6323AQ3226G 6323AQ3226G R 263230 3 THERMISTOR ASSEMBLY 6323AQ3226W 6323AQ3226W 6323AQ3226W R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20096K 6711A20096K 6711A20096K R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096B 6871A20096B 6871A20096B R 268714 PWB PCB ASSEMB...

Page 155: ...ts List Service Manual 159 268711 6 437212 552113 554160 W0CZZ 437211 559010 546810 552203 2 552203 1 554031 649950 349600 435511 648600 550140 552112 435301 430410 349480 567480 561410 552202 552116 Model No AUUH126C Outdoor Unit ...

Page 156: ...558B R 552116 TUBE ASSEMBLY REVERSING 5211A21234B R 552202 VALVE REVERSE 5220AR3228D R 552203 1 VALVE SERVICE 2H02479H R 552203 2 VALVE SERVICE 5220A20001B R 554031 CONDENSER ASSEMBLY BENT 5403A20019V R 554160 COMPRESSOR 2520UGEP2AA R 559010 FAN ASSEMBLY PROPELLER 5901A10004A R 561410 COIL ASSEMBLY REVERSING VALVE 6141AR3733R R 268711 6 PWB PCB ASSEMBLY MAIN OUTDOOR 6871A20917A R W0CZZ CAPACITOR F...

Page 157: ...t Service Manual 161 Model No AUUH186C 554031 559010 349600 435512 435301 349480 437211 430411 546810 552113 552203 1 552203 2 552112 649950 567480 1 567480 2 552200 435511 437212 W0CZZ 648600 268711 6 554160 550140 661400 561410 552116 ...

Page 158: ...F R 552116 TUBE ASSEMBLY REVERSING 5211A24005C R 552200 VALVE EXPANSION BODY 6140A90001K R 552202 VALVE REVERSE 5220AR3228E R 552203 1 VALVE SERVICE 5220A20006A R 552203 2 VALVE SERVICE 5220A20007A R 554031 CONDENSER ASSEMBLY BENT 5403A20022R R 554160 COMPRESSOR 5416A90023A R 559010 FAN ASSEMBLY PROPELLER 5901A10032A R 561410 COIL ASSEMBLY REVERSING VALVE 6141AR3733R R 661400 COIL ASSEMBLY EXPANSI...

Page 159: ...nual 163 435301 349480 554031 546810 559010 552112 W0CZZ 552113 268711 6 649950 552203 1 552203 2 437210 435512 349600 435511 552116 552202 661400 447910 548490 554160 550140 430411 137213 1 435300 137213 2 552200 567480 1 567480 2 Model No AUUH246C ...

Page 160: ...20007A R 554031 CONDENSER ASSEMBLY BENT 5403A10030A R 554160 COMPRESSOR 2520UXDP2BA R 559010 FAN ASSEMBLY PROPELLER 5901A10032A R 561410 COIL ASSEMBLY REVERSING VALVE 6141AR3733R R 649950 CASE ASSEMBLY CONTROL 4995A10225C R 268711 6 PWB PCB ASSEMBLY MAIN OUTDOOR 6871A21318C R W0CZZ CAPACITOR FILM BOX 2A00986Y R 552200 VALVE EXPANSION BODY 5220A90003B R 648600 CLAMP CAPACITOR 4H00442F R 546810 MOTO...

Page 161: ...435301 349480 554031 546810 559010 552115 W0CZZ 1 552111 268711 6 552202 649950 561410 552203 1 552203 2 437210 430411 435512 349600 554160 554160 W0CZZ 2 648600 435511 552116 137213 1 435300 137213 2 552200 567480 1 567480 2 661400 552114 Model No AUUH306C ...

Page 162: ...VE EXPANSION BODY 6140A90001H R 552203 1 VALVE SERVICE 5220A20013A R 552203 2 VALVE SERVICE 5220A20007A R 554031 CONDENSER ASSEMBLY BENT 5403A20070B R 554160 COMPRESSOR 5416A90022E R 554161 COMPRESSOR 5416A90022E R 559010 FAN ASSEMBLY PROPELLER 5901A10032A R 661400 COIL ASSEMBLY EXPANSION 6877A20050L R 649950 CASE ASSEMBLY CONTROL 4995A10178L R W0CZZ 1 CAPACITOR FILM BOX 6120AR2194F R W0CZZ 2 CAPA...

Page 163: ...odel No AUUH368C 546810 559010 554031 435512 435301 349480 437211 349600 137213 2 137213 1 435300 548490 552202 552116 561410 W0CZZ W0CZZ 552115 552114 552203 2 552203 1 649950 435511 430411 268711 6 566001 567480 1 567480 2 552200 661400 554160 554160 561410 ...

Page 164: ... R 552116 TUBE ASSEMBLY REVERSING 5211A11079C R 552117 TUBE ASSEMBLY SUCTION OUTDOOR 5211A11077A R 552200 VALVE EXPANSION BODY 5220A90003B R 552203 1 VALVE SERVICE 5220A20013A R 552203 2 VALVE SERVICE 5220A20007A R 554031 CONDENSER ASSEMBLY BENT 5403A20168B R 554160 COMPRESSOR 5416A90043A R 554160 COMPRESSOR 5416A90043A R 559010 FAN ASSEMBLY PROPELLER 5901A10033A R 561410 COIL ASSEMBLY REVERSING V...

Page 165: ...ice Manual 169 Model No AUUH488C 435512 546810 430410 437212 552203 1 649950 668711 552203 2 435301 559010 137213 554031 1 554031 2 435511 437210 W0CZZ 2 566001 W0CZZ 1 349600 554160 263230 1 263230 2 561410 552200 561411 552202 552116 561410 ...

Page 166: ...XPANSION BODY 5220A90013A R 552203 1 VALVE SERVICE 2A00499L R 552203 2 VALVE SERVICE 5220A20001E R 554031 1 CONDENSER ASSEMBLY BENT 5403A20215A R 554031 2 CONDENSER ASSEMBLY BENT 5403A20215A R 554160 COMPRESSOR 2520UXGY2BA R 559010 FAN ASSEMBLY PROPELLER 5901A10032A R 561410 COIL ASSEMBLY REVERSING 6141AR3733R R 561411 COIL ASSEMBLY EXPANSION 6141A20011W R 566001 SWITCH MAGNET 6600B000039 R 649950...

Page 167: ...0 649950 552203 1 548490 552203 2 435512 559010 561410 W6640 554031 1 554031 2 566001 W0CZZ 1 W0CZZ 2 554160 668711 437212 648600 669200 263230 349600 437210 435511 137213 430410 552116 352115 352111 552201 263230 1 561410 263230 2 552200 561411 Model No AUUH608C ...

Page 168: ...R ASSEMBLY OUTODDR 4681A20028J R 552200 VALVE EXPANSION BODY 5220A90013A R 552203 1 VALVE SERVICE 2A00499L R 552203 2 VALVE SERVICE 5220A20001E R 554031 1 CONDENSER ASSEMBLY BENT 5403A20215A R 554031 2 CONDENSER ASSEMBLY BENT 5403A20215A R 554160 COMPRESSOR 2520UBDY2AA R 559010 FAN ASSEMBLY PROPELLER 5901A10032A R 561410 COIL ASSEMBLY REVERSING 6141AR3733R R 561411 COIL ASSEMBLY EXPANSION 6141A200...

Page 169: ...Exploded View Replacement Parts List Service Manual 173 152312 435310 137211 268712 146811 146811 135802 PT HEA C Panel Assembly Front ...

Page 170: ...Exploded View Replacement Parts List 174 Universal System Air Conditioner 152312 435310 137211 268712 146811 146811 PT HFA C ...

Page 171: ...Exploded View Replacement Parts List Service Manual 175 152312 435310 146811 137211 268712 135802 PT HDA C ...

Page 172: ...acement Parts List 176 Universal System Air Conditioner 137211 W4811 2 146812 2 146812 1 W4811 1 435310 152312 268712 668713 249951 146811 146811 267110 750830 266011 2 266011 2 PT HEF HFF FDF Elevation Grille_Accessory ...

Page 173: ...OOR 3721A10106A 3721A10106B R 435310 GRILLE ASSEMBLY INLET 3531A10066A 3531A10066A R 152312 FILTER ASSY AIR CLEANER 5231A10004A 5231A10004A R 146811 MOTOR ASSEMBLY STEP 4681A20055A 4681A20055A R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096J 6871A20096J R 135802 DOOR 3580A20005A 3580A20005A R PT HDA PT HDC LOCATION No DESCRIPTION Part No SVC CODE 137211 PANEL ASSEMBLY FRONT INDOOR 3721A10072A 3721A10...

Page 174: ...LY MICRO 6601A20002D 6601A20002D 6601A20002C 266011 2 SWITCH ASSEMBLY MICRO 6601A20002E 6601A20002E 146812 1 MOTOR ASSEMBLY SYNC 4681AP2596J 4681AP2596J 4681AP2596H 146812 2 MOTOR ASSEMBLY SYNC 4681AP2596M 4681AP2596M 750830 ROPE ASSEMBLY 5083A20002A 5083A20002A 5083A20002A 249951 CASE ASSEMBLY CONTROL 4995A20450B 4995A20450A 4995A20450A 668713 PWB PCB ASSEMBLY SUB 6871A20362A 6871A20362A 6871A203...

Page 175: ...P No 3828A22009P Printed in Korea ...

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