Ceiling Cassette Air Conditioner SVC MANUAL(Exploded View)
Contents
1. MFL33061306 FEBRUARY 2007 LG P NO MFL33061306 AUGUST 20072. O Applied X Not applied No relation Option Model name amp price are different according to options and assembled in factory with main unit Accessory Installed at field ordered and purchased separately by the corresponding model name supplied with separate package Service Manual 5 3 Piping Diagrams a Indoor Unit Outdoor Unit Capillary Tube 1 Capillary Tube 000 Liquid Side Heat Exchanger Evaporator Exchanger Condenser Compressor Cooling lt Heating LOC Description PCB Connector Th1 Thermistor for indoor air temperature CN ROOM Th2 Thermistor for evaporating temperature CN PIPE1 Th3 Thermistor for condensing temperature Deice PCB 6 Ceiling Cassette Air Conditioner 4 Wiring Diagrams Indoor Unit INDOOR WIRING DIAGRAM evation RAL CONTROL Gril DRY CONTACT Fl T i eh 600000000 BK
3. CAC Dry Contact Network Network Soluation LGAP Function PDI Power Distribution Indicator P1485 ACCESSORY Special Zone Control Function CTIE Kit Electro Thermostat Air flow 2 Installation bh PQWRHSFO v x Ol x 2 PMNFP14A0 Others Thermistor Note Applied X Not applied No relation Option Model name amp price are different according to options and assembled in factory with main unit Accessory Installed at field ordered and purchased separately by the corresponding model name supplied with separate package Skip over evaporator sensing means that the function of knock off to prevent freezing is skipped when IDU start cooling mode 4 Ceiling Cassette Air Conditioner Outdoor Category Function LTNH488DLE1 Defrost Deicing High Pressure Switch Low Pressure Switch X EE Phase protection Restart Delay 3 minutes Self Diagnosis Soft Start X Test Function Convenienc Auto Changeover O Auto Restart Operation O Central control LGAP E PDI Power Distribution Indicator X P1485 X Special Function Kit Low Ambient Kit ACCESSORY Others Thermistor 2
4. ed 60 CN MOTOR2 CN GRILL Neo CN FLOAT CN POWER OH FUSE CN ROOM o Room sensor RY D PUMP BAL o 250V 3154 RY D PU 0 7 e amp MICOM 15 3 9 gt 5 CN PIPE1 o Sr QE RY comP 3 CN PN Or1o BKI LO 2 o IS RY AWAY ro BkO arano le m Wired T o Remocon CN DPUMP 9 CN VANE2 CN VANE1 CN DISP CN HVB j ra BL BL 09099999999 0000000000 0000000 i 1 H 5 0000000000 p DRAIN Moron 2299000009 0909000009 be PUMP VCAPACITO 0000090 i olo LU H DISPLAY PCB STEP STEP STEP AIR MO 55 MOTO CLEANER Hve AssY o 15 id 3854A20518G CN POWER CN DPUMP CN MOTOR2 CN FLOAT CN ROOM lt 4 CN PIPE1 4 CN REMO CN VANE2 CN VANE1 CN DISP Service Manual 7 Outdoor Unit Outdoor Unit Circuit Diagram HW BR POWER SUPPLY 380 415V 50Hz Da o BK To the indoor unit BK BLACK WH WHITE OR ORANGE YL YELLOW GN YL GREEN YELLOW HW HIGH PRESSURE SWITCH SOLENOID COIL RUN CAPACITOR FOR C TH THERMISTOR FOR PIPE TEMP MAGNECTIC CONTACTOR OUTDOOR FAN MOTOR 49FMo INTERNALT P FOR FMo MAIN TERMINAL BLOCK FUSE 250 5A 20SV REVERSING COIL RELAY FOR FAN T
5. CMM x 353 Heating Indoor Temperature 20 C 68 F DB 15 C 59 F WB Outdoor Temperature 7 C 44 6 F DB 6 C 42 8 F WB Piping Length Interconnecting Piping Length 7 5m Level Difference of Zero 2 Wiring cable size must comply with the applicable local and national code 3 The specification may be subject to change without notic for purpose of improvement Service Manual 3 2 List of Functions Indoor Category Function LTNH488DLE1 Air Supply Outlet 4 Airflow Direction Control left amp right Airflow Direction Control up amp down Auto Auto Swing left amp right X Auto Swing up amp down Airflow Steps Fan Cool Heat 4 5 4 CHAOS Swing CHAOS Wind Auto wind Jet Cool Power Wind Swirl Wind Deodorizing Filter Air Purifier Plasma Air Purifier OP Prefilter Washable Anti Fungus Drain Pump E S P Control Electric Heater Operation High Ceiling Operation Hot Start Reliability Self Diagnosis Soft Dry Operation Auto Changeover Auto Cleaning Auto Operation Artificial Intelligence Auto Restart Operation Child Lock Convenience Forced Operation Group Control Sleep Mode Timer On Off Timer weekly Two Thermistor Control Standard Wired Remote Controller Deluxe Wired Remote Controller Individual Simple Wired Remote Controller Control Wired Remote Controller for hotel use Wireless Remote Controller simple Wireless LCD Remote Controller ACCESSORY General Central Controller Non LGAP
6. ERMINAL BLOCK COMP COMPRESSOR DEICER RELAY FOR LW P NO 3854A20522V Anti phase PCB Magnetic Contactor _ Deice PCB Connecting wire Terminal block Fan Cu Capacitor yS oS Terminal Block 8 Ceiling Cassette Air Conditioner 5 Exploded View Indoor Unit Note Please ensure GCSC since the replacement parts may be changed depending upon the buyer s request Please check the correct parts in View RPL Replacement Part List on GCSC GCSC Website http biz Lgservice com Service Manual 9 Please check the service part of front panel by model 1 Please check the correct parts in View RPL Replacement Part List on GCSC Note Please ensure GCSC since the replacement parts may be changed depending upon the buyer s request GCSC Website http biz Lgservice com 10 Ceiling Cassette Air Conditioner Outdoor Unit f Yip Note Please ensure GCSC since the replacement parts may be changed depending upon the buyer s request Please check the correct parts in View RPL Replacement Part List on GCSC GCSC Website http biz Lgservice com Service Manual 11
7. http biz Igservice com LG Ceiling Cassette Air Conditioner MODEL LT H488DLE1 CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel 1 Specification Indoor Indoor Unit Type Ceiling Cassette Models LTNH488DLE1 Decorative Panel Model PT HDA1 Power Supply V Hz 3 380 415 50 Cooling Capacity kW 14 Btu h 47 770 Heating Capacity kW 15 2 Btu h 51 865 Current Nominal Running Current A 0 4 Fan Motor Type BLDC Fan Type Turbo Motor Output W x No of Unit 124 1 Air Flow Rate CMM 31 29 27 H M L cfm 1094 1024 953 External Static Pressure mmAq Capacitor Vac 680 400 Drive Direct Coil Row x Column x FPI 2R 12C 19FPI Dimensions W x H x D Body inch 840 840 288 33 1 33 1 11 3 Decorative Panel inch 950 950 30 37 4 37 4 1 2 Net Weight Body bs 31 68 3 Decorative Panel bs 5 11 Air Filter Long Life Filter Sound Level M L SL 3 45 44 42 41 Piping Liquid mm inch 9 52 3 8 Connections Gas mm inch 19 05 3 4 Drain OD ID mm 32 25 Dehumidification Rate l h 2 4 Safety Devices Fuse Thermal Protector Temperature Sensor Thermistor Referigerant R22 Referigerant Control Capillary T
8. oor or Outdoor to BD Power and Transmission Cable BD to Indoor No x mm Dimensions WxHxD mm inch 1130 900 370 44 5 35 4 14 5 Net Weight kg Ibs 105 231 Max Number of Connectable Indoor Units 1 Compressor 1 Type SCROLL Qty x Model 1 SB061YAA Motor type Induction Oil charge volume 1 650 Oil Type SUNISO 4GSI Compressor 2 Type Qty x Model otor type il charge volume il type Compressor 3 otor type il charge volume il type Refrigerant Cycle A Charge at 7 5m 3 700 130 5 Cycle B Charge at 7 5m Type R22 Control Capillary Tube Additional Refrigerant Charge g m oz ft 45 0 48 Heat Exchanger Rows x Column x x No 2R 22C 18FPI 2 Defrosting Method Reversing Cycle Fan Capacitor yF Vac 6 370 400 Drive Direct Discharge Direction Side Top Side Air Flow RatexNo of Fan CMM cfm 110 3885 Sound Level H L Sound Pressure 3 59 Piping Connections Liquid Cycle 9 52 3 8 Gas Cycle A i 19 05 3 4 Liquid Cycle B i Gas Cycle B i High Pressure Gas i Interunit Total Piping 50 Piping Length Main Piping Total Branch Piping Each Branch Piping Max Elevation Outdoor Unit Indoor Unit 30 Difference Indoor Unit Indoor Unit Operation Range Cooling Outdoor Heating Note 1 Capacities are based on the following conditions Conversion Formula Cooling Indoor Temperature 27 C 80 6 F DB 19 C 66 2 F WB kW Btu h x 0 0002931 Outdoor Temperature 35 C 95 F DB 24 C 75 2 F WB cfm
9. ube Connectable Outdoor Unit LTUH488DLE1 Power and Transmission Interunit Cable Note 1 Capacities are based on the following conditions Cooling Indoor Temperature 27 C 80 6 F DB 19 C 66 2 F WB Outdoor Temperature 35 C 95 F DB 24 C 75 2 F WB Heating Indoor Temperature 20 C 68 F DB 15 C 59 F WB Outdoor Temperature 7 C 44 6 F DB 6 C 42 8 F WB Piping Length Interconnecting Piping Length 7 5m Level Difference of Zero 2 Wiring cable size must comply with the applicable local and national code 5 3 5 5 0 75 Conversion Formula kW Btu h x 0 0002931 CMM x 35 3 3 The specification may be subject to change without prior notice for purpose of improvement 2 Ceiling Cassette Air Conditioner Outdoor Outdoor Unit LTUH488DLE1 Nominal Capacity Cooling 14 Min Rating Max 47 770 Heating 15 2 51 865 Nominal Input Cooling 4 9 Min Rating Max Heating 4 9 Testing Combination Running Current Rating Cooling 8 5 Heating 8 7 Starting Current Cooling Heating Power Supply 0 V Hz 3 380 415 50 Power Supply Cable Outdoor No x mm 5 3 5 Including Earth Power and Transmission Cable No x mm 5 0 75 Including Earth Outdoor to Ind
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