LG REG-123A Service Manual

LG REG-123A Manual

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  • LG REG-123A | Service Manual - Page 1
    +($7&21752//(5,1& 5RRP$LU&RQGLWLRQHU 02'(/6 5EG-71A 5EG-123A 6HUYLFH$QG3DUWV0DQXDO CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
  • LG REG-123A | Service Manual - Page 2
    Service Manual TABLE OF CONTENTS Safety Precautions...3 Dimensions ...5 Symbils Used in this Manual Parts...15 Air Handling Parts ...16 Electrical Parts ...17 Refrigerating Cycle...19 Schematic Diagram...22 Wiring Diagram...22 Troubleshooting Guide ...23 Piping System ...23 Troubleshooting Guide
  • LG REG-123A | Service Manual - Page 3
    . Be sure not to do. Be sure to follow the instruction. s Installation WARNING Do not use damaged power cord plugs, or a loose socket. Always use the power plug and socket with the ground terminal. • There is risk of fire or electric shock. • There is risk of electric shock. Service Manual 3
  • LG REG-123A | Service Manual - Page 4
    Safety Precautions Do not modify or extend the power cord. • There is risk or fire or electric shock. Do not install, remove, or re-install the unit by yourself(customer). • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing the product. Do not
  • LG REG-123A | Service Manual - Page 5
    that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Outside Dimensions Dimensions D W H Dimension W H D Model mm(inch) mm(inch) mm(inch) REG-71A 471(18 9/16) 352(13 7/8) 525(20 11/16) Heat REG-123A 600(23 5/8) 380(14 31/22) 576(22 1/16) Service Manual 5
  • LG REG-123A | Service Manual - Page 6
    HEATER PROTECTOR COMPRESSOR FAN MOTOR ELECTRIC HEATER POWER CORD DRAIN SYSTEM NET WEIGHT OUTSIDE DIMENSION (W x H x D) (lbs/kg) (inch) (mm) REG-71A REG-123A 1Ø,115V, 60Hz 1Ø, 208/230V, 60Hz 6,900 11,500/12,000 710 1,170/1,220 6.6 5.5/5.8 9.7 9.8/9.8 3850 9,200/11,200 1,260 2,900
  • LG REG-123A | Service Manual - Page 7
    most appropriate connection from among the following figures (by considering the hole of the unit) to fit drain pan to your own unit. Fig. 3 Fig. 4 Service Manual 7
  • LG REG-123A | Service Manual - Page 8
    Installation How to Install(Models without Installation Kit) 1. Remove the screws that fasten the cabinet at both sides and at the back. On/Off 2. Slide the unit from the cabinet by gripping TIMER On/Off ESNAEVREGRY Fan Cool Heat MODE the base pan handle and pulling forward while bracing the
  • LG REG-123A | Service Manual - Page 9
    Kit) When Using Gasket REG-123A A 1 A 2 2 NAME OF PARTS Q'TY 1 FRAME CURTAIN 2 2 SILL SUPPORT 2 3 BOLT GUIDE 1 11 FOAM-PE (600mm x 25mm x 2mm) 1 12 FRAME GUIDE 2 13 WINDOW LOCKING BRACKET 1 14 DRAIN PIPE 1 s Top retainer bar is in the product package. 10 Service Manual
  • LG REG-123A | Service Manual - Page 10
    Installation REG-71A A 2 On/Off On/ 1/2" to 11/4" Sill Exterior NO. NAME OF PARTS Q'TY 1 FRAME CURTAIN 2 2 SILL SUPPORT 2 3 BOLT 2 4 NUT 2 5 SCREW (920mm x 30mm x 2mm) 1 10 UPPER GUIDE 1 11 FOAM-PE (600mm x 25mm x 2mm) 1 12 FRAME GUIDE 2 13 WINDOW LOCKING BRACKET 1 14 DRAIN PIPE
  • LG REG-123A | Service Manual - Page 11
    the window stool. 2. Pull the bottom window sash down behind the upper guide until it meets. Shipping screws On/Off TIMER On/Off ESNAEVREGRY Fan Cool is restricted. Upper Guide Window Sash Window stool Front Angle Figure 2 Upper guide 10 Cabinet Frame Curtain 1 Figure 3 Service Manual 11
  • LG REG-123A | Service Manual - Page 12
    3. Loosely assemble the sill support using the parts in Figure 4. 4. Select the position that will place the sill support near the outer most point on sill (See Figure 4) NOTICE Be careful when you install the cabinet (Frame Guides are broken easily). 5. Attach the sill support to the cabinet track
  • LG REG-123A | Service Manual - Page 13
    On/Off TIMER On/Off Fan Cool Heat ESNAEVREGRY MODE Figure 12 On/Off On/Off Fan Cool Heat TIMER ENERGY SAVER MODE Figure 13 Service Manual 13
  • LG REG-123A | Service Manual - Page 14
    Slide-in and slide-out chassis for the simple instal- lation and service. • Side air-intake, side cooled-air discharge. • Built-in , will disappear quickly. CLOSE 2 VENT OPEN REG-123A 33 6 44 5 4 REG-71A 7 Heat 3 62 51 REMOTE CONTROLLER REG-123A REG-71A Power 1 Power 1 Temp 5 Temp
  • LG REG-123A | Service Manual - Page 15
    following disassembly, CONTROL BOX set to OFF and disconnect the power cord. Mechanical Parts 1. Front Grille 1. Open the lnlet grille upward . 2. Remove the the circuit diagram found on page 23 in this manual and on the control box.) Figure 15 On/Off TIMER On/Off Fan Cool ESNAEVREGRY Heat
  • LG REG-123A | Service Manual - Page 16
    Disassembly Air Handling Parts 4. Air Guide and Turbo Fan 1. Remove the front grille. (Refer to section 1) 2. 14. Remove the blower. 15. Remove the 4 screws that fasten the air guide from the barrier. 16. Move the air guide backward, pulling out from the base pan. 17. Re-install the components
  • LG REG-123A | Service Manual - Page 17
    (See Figure 21) 4. Re-install the component by referring to the removal procedure, above. Electrical Parts 7. Overload Protector 1. Remove the cabinet. (Refer to section 2) 2. Remove the nut that fastens to the removal procedure, above. Disassembly Figure 21 Figure 22 Figure 23 Service Manual 17
  • LG REG-123A | Service Manual - Page 18
    Disassembly 9. Capacitor 1. Remove the control box. (Refer to section 3) 2. Remove the knobs and the screw that fasten control panel from control box. 3. Remove the screw that located in the front. 4. Open the bottom side of control box. 5. Remove the screw and the clamp that fastens the capacitor.
  • LG REG-123A | Service Manual - Page 19
    system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system. 14. Condenser 1. Remove the cabinet. (Refer to section 2) 2. Remove the 4 screws that to notes. (See Figure 30) Disassembly Figure 28 Figure 29 Figure 30 Service Manual 19
  • LG REG-123A | Service Manual - Page 20
    before venting the FreonTM. Leave the valve in place after servicing the system. 2. After discharging the unit completely, remove the desired the manifold connection. 5) The system is now ready for final charging. 6. Recharge as follows : 1) Refrigeration cycle systems are charged from the High-side.
  • LG REG-123A | Service Manual - Page 21
    , Brazing equipment. Pin-off tool capable of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. CONDENSER (HIGH PRESSURE SIDE) COMPOUND GAUGE MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR
  • LG REG-123A | Service Manual - Page 22
    Schematic Diagram Schematic Diagram Wiring Diagram s ELECTRIC HEATING MODEL 22 Room Air Conditioner
  • LG REG-123A | Service Manual - Page 23
    Piping System CONDENSER COIL FAN MOTOR Troubleshooting Guide CAPILLARY TUBE COMPRESSOR BLOWER EVAPORATOR COIL Figure 32 is a brief description of the important components ) CAPILLARY TUBE Figure 32 LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID REFRIGERANT LOW PRESSURE VAPOR Service Manual 23
  • LG REG-123A | Service Manual - Page 24
    Troubleshooting Guide Troubleshooting Guide In general, possible trouble is classified in two kinds. The Heat exchanger) Malfunction of fan Clogged of air filter. Obstruction at air outlet Correct above trouble Check outdoor coil (heat exchanger) & the fan operation. Check gas leakage. Repair gas
  • LG REG-123A | Service Manual - Page 25
    Fails to Start Troubleshooting Guide Check of power source. Check of control switch setting. Compressor only fails to start. Drop of power insulation ( ) Replacement of compressor (Motor damaged) Regular but fails to start. Replacement of compressor (locking of rotor, metal). Service Manual 25
  • LG REG-123A | Service Manual - Page 26
    Troubleshooting Guide Room Air Conditioner Voltage Limits NAME PLATE RATING 208~230±10% 115±10% MINIMUM 187V 104V MAXIMUM 253V 126V COMPLAINT Fan motor will not run.
  • LG REG-123A | Service Manual - Page 27
    Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor will not run, but fan motor runs. Compressor cycles on overload. Compressor cycles on overload. Compressor cycles on overload. Insufficient cooling or heating Excessive noise Thermostat Capacitor (Discharge capacitor before servicing.)
  • LG REG-123A | Service Manual - Page 28
    349001 130410 567502 554160 135303 152302 147582 147581 249950 135312 567480 268711-1 238310 264100 237200 268711-2 550140 W0CZZ W5210E-2 W5210E-1 552102 552113 352113 135500 35211A Service Manual 35
  • LG REG-123A | Service Manual - Page 29
    W48602 352115-1 352115-2 359012 137215 352115 Replacement Parts List DESCRIPTION 3041A30005V REG-71A DESCRIPTION BASE ASSY,SINGLE REMARK R 3091A10069F 5211A20130F TUBE ASSEMBLY, SUCTION SINGLE R 5239A30002N AIR GUIDE ASSEMBLY R 5421A20036J EVAPORATOR ASSEMBLY, FIRST R 5040AR4195A
  • LG REG-123A | Service Manual - Page 30
    W48602 352115-1 352115-2 137215 753000 Replacement Parts List DESCRIPTION AAN32956302 REG-123A DESCRIPTION BASE ASSY,SINGLE REMARK R 3091A10032V 5211AR6081L TUBE ASSEMBLY, SUCTION SINGLE R 5239AR1523U AIR GUIDE ASSEMBLY R 5421AR2912H EVAPORATOR ASSEMBLY, FIRST R 4830AR4335A
  • LG REG-123A | Service Manual - Page 31
    6SHFLILFDWLRQVDQGSHUIRUPDQFHGDWDVXEMHFWWRFKDQJHZLWKRXWQRWLFH +($7&21752//(5,1& :(//:257+$9(18(‡-$&.6210,&+,*$1 7+(48$/,7
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EG-71A
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL
.
EG-123A