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Thru-the-Wall Series
Service and Parts
Manual
Thru-the-Wall Series
115 Volts UE08:Staring with serial number LGCK00001
230 Volts UE10:Staring with serial number LGDK00001
UE12:Staring with serial number LGDK00001
UE08/UE10/UE12 (04/07)
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CONTENTS 2.4 REFRIGERATION CYCLE..............................9 1. PREFACE 2.4.1 CONDENSER ........................................9 1.1 SAFETY PRECAUTIONS ...............................2 2.4.2 EVAPORATOR ......................................9 1.2 INSULATION RESISTANCE TEST.................2 2.4.3 CAPILLARY TUBE.................................9 1.3 SPECIFICATIONS ..........................................3 1.4 FEATURES .....................................................4 3. TROUBLESHOOTING
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1.3 SPECIFICATIONS 1.3.1 FOR UE08A13B/UE10A33B/UE12A33B MODELS UE08A13B UE10A33B UE12A33B REMARK ITEMS POWER SUPPLY 1Ø, 115V, 60Hz 1Ø, 208/ 230V, 60Hz CAPACITY (Btu/h) 8,000 9,800/10,000 11,200/11,500 INPUT (W) 830 1,040/1,060 1,270/1,310 COOLING RUNNING CURRENT (A) 7.5 5.2/4.7 6.2/5.8 E.E.R. (Btu/W.h) 9.6 9.4 8.8 CAPACITY (Btu/h) 3,850 9,200/11,200 HEATING 1,230 2,900/3,500 INPUT (W) 10.7 14.0/15.3 RUNNING CURRENT (A) 26.7 (DB) 19.4 (WB) INDOOR (°C) COOLING OPERATING OUTDOOR (°C) 35 (DB
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1.4 FEATURES • Designed for cooling only. • Built in adjustable THERMISTOR and THERMOSTAT. • Washable one-touch filter. • Powerful and quiet cooling. • Top-down chassis for the simple installation and service. • Compact size. 1.5 CONTROL LOCATIONS • OPERATION Off - Turns the air conditioner off. Fan Only - The low fan speed operation without cooling (heating). Low Cool - Cooling with the low speed fan operation. High Cool - Cooling with the high speed fan operation. Low Heat - Heating with the l
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2. DISASSEMBLY INSTRUCTIONS — Prior to disassembling the unit, make sure that the POWER switch is set to OFF and the power cord is unplugged from the wall receptacle. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the inlet grille downward. 2. Remove the screw which fastens the front grille. 3. Pull the front grille from the right side. 4. Remove the front grille. (See Fig. 1) 5. Re-install the component by referring to the removal procedure. Figure 1 2.1.2 CABINET 1. After disassembling the FR
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2.2 AIR HANDLING PARTS 2.2.1 ORIFICE, HEATER ASSY AND TURBO FAN 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove the 2 screws which fasten the evaporator at the left side and the right side. (See Fig. 4) 4. Move the evaporator sideward carefully. 5. Remove the 2 terminals carefully Figure 4 (See Fig. 5, Electric Heater Model only) 6. Remove the 4 screws which fasten the orifice. (See Fig. 5) 7. Remove the orifice. (See Fig. 5) Figur
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2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the screw which fastens the shroud. 3. Remove the shroud. (See Fig. 9) 4. Re-install the components by referring to the removal procedures, above. 2.3 ELECTRICAL PARTS 2.3.1 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2) Figure 9 2. Remove the clamp cord and disconnect the wire housing in control box. (Refer to section 2.1.3) 3. Remove the turbo fan. (Refer to section 2.2.2) 4. Remove the fan. (Refer to section 2.2.2) 5. R
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2.3.4 POWER CORD 1. Remove the control box. (Refer to section 2.1.3) 2. Unfold the control box. (Refer to section 2.3.3) 3. Disconnect the grounding screw from the control box. 4. Disconnect 2 receptacles. 5. Remove a screw which fastens the clip cord. 6. Pull the power cord. (See Fig. 13) 7. Re-install the components by referring to the removal procedure, above. (Use only one ground-marked hole, , for ground connection.) 8. If the supply cord of this appliance is damaged, it must be replace
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2.4 REFRIGERATION CYCLE CAUTION TM Discharge the refrigerant system using a Freon Recovery System. Install a valve for the recovery before venting the Freon. Remove the valve when finished. 2.4.1 CONDENSER 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the brace and the shroud cover. (Refer to section 2.2.1) 3. Remove the 5 screws which fasten the condenser. 4. After discharging the refrigerant completely into a TM Figure 16 Freon Recovery System, unbraze the interconnecting tube at t
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NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to 6. Recharge as follows : TM discharge the refrigerant system using a Freon 1) Refrigeration cycle systems are charged from the recovery System. High-side. If the total charge cannot be put Install a valve for the recovery before venting the in the High-side, the balance will be put in the Freon. Remove the valve when finished. suction line through the access valve which you 2. After dischargi
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Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 18A-Pulling Vacuum Figure 18B-Charging —11— COMPOUND GAUGE CONDENSER (HIGH PRESSURE SIDE) MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR LOW HI A B B A EXTERNAL VACUUM PUMP CHARGING CYLINDER C
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3. TROUBLESHOOTING GUIDE 3.1 OUTSIDE DIMENSIONS 21 21 24- /32" 19- /32" (499mm) (626mm) 3.2 PIPING SYSTEM CONDENSER COILS FAN CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COILS Following is a brief description of the important components and their functions in the refrigeration system. Refer to Fig. 20 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET SUCTION
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3.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two causes. The one is called Starting Failure which is caused from an electrical defect, and the other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit is running but cooling is ineffective Ineffective Cooling Check cold air circulation Check outdoor coil Check heat load increase. for smooth flow. (heat exchanger) & the fan operation. Unexpected residue Dirty i
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Fails to Start Check power source. Check circuit breaker and fuse. Check control switch Gas leakage at feeler bulb setting. of thermostat Check control switch. Only compressor fails to Only fan fails to start. start. Improper wiring. Drop in power voltage. Improper thermostat setting Defect of fan motor capacitor. Defective compressor capacitor. Loose terminal connection. Irregular motor resistance ( ). Check capacitor. Irregular motor insulation ( ). Improper wiring Replacement. Replacem
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COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Rotary switch Check switch continuity. Refer to wiring diagram for terminal identification. Replace switch if defective. Wire disconnected or Connect wire. Refer to wiring diagram for terminal connection loose identification. Repair or replace loose terminal. Capacitor (Discharge Test
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COMPLAINT CAUSE REMEDY Compressor will not run, Voltage Check voltage. See the limits at the bottom of this but fan motor runs. page. If not within limits, call an electrician. Wiring Check the wire connections, if loose, repair or replace the terminal. If wires are off, refer to wiring diagram for identification, and replace. Check wire locations. If not per wiring diagram, correct. Rotary Check for continuity, refer to the wiring diagram for terminal identification. Replace the switch if circu
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REMEDY COMPLAINT CAUSE Compressor cycles Voltage Check the voltage. See the limits on the preced- on overload. ing page. If not within limits, call an electrician. Overload Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.) Fan motor If not running, determine the cause. Replace if required. Condenser air flow Remove the cabinet. Inspect the interior surface restriction of the condenser; if restricted, clean care
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4. SCHEMATIC DIAGRAM 4.1 CIRCUIT DIAGRAM • MODEL : UE08A13B/UE10A33B/UE12A33B 1 3 2 4 5 6 7 PART NO. Q'TY RE- NO. DESCRIPTION PER SET MARKS UE08A13B UE10A33B UE12A33B 1 6411A20056L 6411A20056Q 1 POWER CORD 2 2H00598F 1 ROTARY SWITCH 3 4681A20044H 4681A20041C 4681A20041M 1 FAN MOTOR 4 0CZZA20012A 6120AR2359E 1 CAPACITOR 5 2H01127D 1 THERMOSTAT 7 1 OVERLOAD PROTECTOR 6750A30001N
6750U-L028A 6750U-L058A 8 1 ELECTRIC HEATER 5300A20003B
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' FF 12 L M OE WD F F3 HIGH Cool Energy Saver Fan Timer TEMP MODE TIMER FAN POWER SPEED 5. EXPLODED VIEW • MODEL: UE08A13B/UE10A33B/UE12A33B 130900 749180 E G 147582-1 147582-2 147581 152302 435301 135312 135313 352390 D 559010 349001 148000 F W48602 753011 149980 346811 130410 349600 359012 W48602 A C B 269310 266003 567502 137215 264110 W0CZZ 550140 149410 —19—
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6. REPLACEMENT PARTS LIST R: Service Parts N: Non Service parts UE08A13B(TXX081APAA0.AWYBFRD) LocNo FRD P/NO DESCRIPTION REMARK W0CZZ 67300725 CAPACITOR, DRAWING R 266003 67300502 SWITCH, ROTARY R 269310 67300404 THERMOSTAT ASSEMBLY R 130410 67302923 BASE ASSEMBLY, SINGLE R 130900 67303705 CABINET R 135313 67306104 GRILLE, INLET R 135312 67306006 GRILLE ASSEMBLY, FRONT(SINGLE) R 137215 67305504 PANEL ASSEMBLY, CONTROL R W48602 67302500 CLAMP, SPRING R 346811 67303019 MOTOR ASSEMBLY, SINGLE R 147
