User manual LG AS-W1825DH0

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[. . . ] website http://www. lgservice. com LG LG Room Air Conditioner SERVICE MANUAL MODELS: AS-W0964DH0 AS-W1264DH0 AS-W1865DH0 AS-W0964GH0 AS-W1264GH0 AS-W1224DH0 AS-W1424DH0 AS-W1825DH0 CAUTION · BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. · ONLY FOR AUTHORIZED SERVICE PERSONNEL. Air Conditioner Service Manual TABLE OF CONTENTS LG Model Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Flaring work and connection of piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Connecting the cable between indoor unit and outdoor unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Checking the drainage and forming the pipings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Air purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Test running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 2 Room Air Conditioner LG Model Name LG Model Name 2003 1 Code 1 2 Type - 3 4 5 6 7 8 9 10 Code of Model A~Z Meaning L: Chang-won R22 A: Chang-won R410A C: Chang-won R407C T: China K: Turkey R22 E: Turkey R410A H: Thailand N: India Z: Brazil D: Indonesia M: Mexico V: Vietnam S: Out Sourcing Producing Center, Refrigerant 2 3 Product Type Cooling/Heating/Inverter A~Z A~Z S: Split Type Air Conditioner C: Cooling only H: Heat pump X: C/O + E/Heater Z: H/P + E/Heater Cooling/Heating Capacity Ex. "09" ¡ 9, 000 Btu/h 1: 115V/60Hz, 2: 220V/60Hz 3: 208-230V/60Hz 5: 200-220V/50Hz 6: 220-240V/50Hz 7: 110V, 50/60Hz 8: 380-415V/50Hz 9: 380-415V/60Hz Name of Chassis of Unit Ex. LSP ¡ SP Chassis Look, Color (Artcool Model) Basic Basic+4Way Plasma Filter Plasma Filter+4 Way Tele+LCD Tele+LCD+Nano plasma+4Way Nano Plasma F+(A/changeove)+A/clean+Low A Nano Plasma F+(A/changeove)+A/clean+4way+Low A Tele+LED+4way Internet Plasma F+4Way+Oxy generator Nano Plasma F+(A/changeove)+A/clean Nano Plasma F+(A/changeove)+A/clean+4way Nano Plasma F+(A/changeove)+A/clean+PTC Nano Plasma F+(A/changeove)+Autoclean+4way+PTC Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Negative ION+A/Clean (Nano)Plasma+Negative ION+A/Clean 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean Nano Plasma F+4Way+(A/changeove)+A/clean+ LG Model Development Serial No. [. . . ] · In the Jet Heat mode, the room temperature is controlled to the setting temperature, 30°C. · When the sleep timer mode input while the Jet Heat mode operation, the Jet Heat mode has the priority. · When the Jet Heat key is input, the upper/lower vane is reset to those of the initial Jet heating mode and then operated in order that the air outflow could reach under flow. Swing mode 1. New Chaos swing mode · By the Chaos swing key input, the upper/lower vane automatically operates with the Chaos swing or it is fixed to the desired direction. (S4) 7, 9, 12, 14k Model Cooling Operation CLOSED CLOSED Heating Operation 110° Mode8 Mode7 Mode6 Mode5 Mode4 Start Mode3 Mode2 Mode1 OPEN 110° Mode8 Mode7 Start Mode6 Mode5 Mode4 Mode3 Mode2 Mode1 OPEN 8° 8° (S5) 18, 24k Model Cooling Operation CLOSED CLOSED Heating Operation 120° Mode9 Mode8 Start Mode7 Mode6 Mode5 Mode4 Mode3 Mode2 Mode1 OPEN Start Mode9 Mode8 Mode7 Mode6 Mode5 Mode4 Mode3 Mode2 OPEN 120° 8° 8° Service Manual 33 Operation Sleep timer operation · When the sleep time is reached after [1, 2, 3, 4, 5, 6, 7hr] is input by the remote control during the operation, the operation of the appliance stops. · When the appliance is on pause, the sleep timer mode cannot be input. 1. Sleep timer operation for cooling cycle · While in cooling mode operation, 30 min. later since the start of the sleep timer, the setting temperature increase by 1°C. elapse, it increases by 1°C again. Setting temp. (°C) 1. 0°C up 1. 0°C up Cooling ON temp. Sleep timer operation for heating cycle · While in heating mode operation, 60 min. later since the start of the sleep timer, the setting temperature decrease by 1°C. elapse, it decreases by 1°C again. Setting temp. +3. 0°C) 1. 0°C down 1. 0°C down 1 2 Sleep time (hr) 34 Room Air Conditioner Operation Auto restarting operation · When the power is restarted after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. · Operation mode that is kept on the memory - State of operation ON/OFF - Operation mode/setting temp. /selected airflow speed - Sleep timer mode/remaining time of sleep timer - Chaos Swing Forced operation · To operate the appliance by force in case that the remote control is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions. · The operation condition is set according to the outdoor temp. and intake air temperature as follows. Indoor temp. over 24°C 21~24°C below 21°C Operating Mode Cooling Healthy Dehumidification Heating Setting temp. 22°C 23°C 24°C Setting speed of indoor fan High speed The unit select before operating mode in 3 hours. Test Operation · Press the Tact Switch for compulsory operation of the main body for 3 seconds in order to operate in the trial operation mode. - Operation mode: Cold - Indoor pan: Strong wind - COMP frequency: Step 5 - COMP compulsorily operates for about 18 minutes irrespective of indoor temperature. Service Manual 35 Operation Power relay control · Power relay turns on 1 second later after the power is input to the outdoor unit. · Control sequence : power on PTC operating power relay on Protection from total current control s CT1 control · If the operating current reaches I1, the operating frequency of the compressor decrease. · After decreasing the operating frequency by 1step, if operating current is below I1 for 60 seconds continuously, the operating frequency of compressor increase by 1step. s CT2 control · If the operating current of the appliance reaches I2, the compressor stop instantly and 2 minutes later the compressor restart again. · If CT2 occurs 5 times within 1hour, the appliance turn off and display ERROR CODE 7. Control table Model 1 2 3 AS-0964DH0 AS-1264DH0 AS-1865DH0 I1:Current of operating frequency down I2: Current of compressor cut off Outdoor temp 38°C Cooling Heating 5. 5 6. 5 9. 0 6. 5 7. 5 10. 5 I1 Outdoor temp < 38°C Cooling Heating 6 7 9. 5 7 8 11. 0 I2 9 10 13 cf. [. . . ] is short or open Cause of error · D_pipe TH. is not connected to the outdoor pcb assembly · Damage or defect on the sensing circuit of outdoor pcb assembly 10 Check flow YES D_PIPE TH. No YES Sensing circuit of outdoor pcb is right ?No Connect to CN-D_PIPE in outdoor pcb assembly Check D_PIPE TH. [. . . ]

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