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)
CONTENTS 2.4 REFRIGERATION CYCLE..............................9 2.4.1 CONDENSER ........................................9 2.4.2 EVAPORATOR ......................................9 2.4.3 CAPILLARY TUBE.................................9 1. PREFACE 1.1 SAFETY PRECAUTIONS ...............................2 1.2 INSULATION RESISTANCE TEST.................2 1.3 SPECIFICATIONS ..........................................3 1.4 FEATURES .....................................................4 1.5 CONTROL LOCATIONS ........
1.3 SPECIFICATIONS 1.3.1 FOR UE08A13B/UE10A33B/UE12A33B MODELS ITEMS UE12A33B 9,800/10,000 11,200/11,500 (W) 830 1,040/1,060 1,270/1,310 RUNNING CURRENT (A) 7.5 5.2/4.7 6.2/5.8 E.E.R. 9.6 9.4 8.8 (Btu/h) INPUT (Btu/W.h) (Btu/h) 3,850 9,200/11,200 (W) 1,230 2,900/3,500 RUNNING CURRENT (A) 10.7 14.0/15.3 CAPACITY INPUT INDOOR (°C) OPERATING COOLING OUTDOOR (°C) TEMPERAINDOOR (°C) TURE HEATING OUTDOOR (°C) REFRIGERANT (R-22) CHARGE(g) 405(14.3 OZ) 26.7 (DB) 19.
1.4 FEATURES • Designed for cooling only. • Built in adjustable THERMISTOR and THERMOSTAT. • Powerful and quiet cooling. • Top-down chassis for the simple installation and service. • Washable one-touch filter. • Compact size. 1.5 CONTROL LOCATIONS • OPERATION Off Fan Only Low Cool High Cool Low Heat High Heat - Turns the air conditioner off. - The low fan speed operation without cooling (heating). - Cooling with the low speed fan operation. - Cooling with the high speed fan operation.
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.
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 (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) Figure 4 Figure 5 8.
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) 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.
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.
2.4 REFRIGERATION CYCLE CAUTION Discharge the refrigerant system using a FreonTM 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.
NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to discharge the refrigerant system using a FreonTM recovery System. Install a valve for the recovery before venting the Freon. Remove the valve when finished. 2. After discharging the unit completely, remove the desired component, and unbrace the pinch-off tubes. 3. Solder service valves into the pinch-off tube ports, leaving the valves open. 4. Solder the pinch-off tubes with Service valves. 5.
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.
3. TROUBLESHOOTING GUIDE 3.1 OUTSIDE DIMENSIONS 24-21/32" (626mm) 14-13/32" (366mm) 19-21/32" (499mm) 3.2 PIPING SYSTEM CONDENSER COILS FAN CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COILS : REFRIGERANT FLOW 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.
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 for smooth flow. Check outdoor coil (heat exchanger) & the fan operation. Dirty indoor coil (Heat exchanger) Check gas leakage.
Fails to Start Check power source. Check circuit breaker and fuse. Check control switch setting. Gas leakage at feeler bulb of thermostat Check control switch. Only compressor fails to start. Only fan fails to start. Improper wiring. Drop in power voltage. Improper thermostat setting Defect of fan motor capacitor. Defective compressor capacitor. Loose terminal connection. Check capacitor. Irregular motor resistance ( ). Irregular motor insulation ( ). Improper wiring Replacement.
COMPLAINT Fan motor will not run. CAUSE REMEDY 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 connection loose Connect wire. Refer to wiring diagram for terminal identification. Repair or replace loose terminal.
COMPLAINT Compressor will not run, but fan motor runs. CAUSE REMEDY Voltage Check voltage. See the limits at the bottom of this 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.
COMPLAINT Compressor cycles on overload. Insufficient cooling or heating Excessive noise. REMEDY CAUSE Voltage Check the voltage. See the limits on the preceding 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 restriction Remove the cabinet.
4. SCHEMATIC DIAGRAM 4.1 CIRCUIT DIAGRAM • MODEL : UE08A13B/UE10A33B/UE12A33B 1 3 2 4 5 6 7 ＥＢＹ３６７２０３０１ NO. DESCRIPTION 1 POWER CORD 2 ROTARY SWITCH 3 FAN MOTOR 4 CAPACITOR 5 THERMOSTAT 7 OVERLOAD PROTECTOR 8 ELECTRIC HEATER PART NO.
5.
6. REPLACEMENT PARTS LIST R: Service Parts N: Non Service parts UE08A13B(TXX081APAA0.
UE10A33B(TXX103APAA0.
UE12A33B(TXX123APAA0.
FRIEDRICH AIR CONDITIONING CO. Visit our web site at www.friedrich.com Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540 • (210) 357-4400 • FAX (210) 357-4480 P/NO.
