Page 1
Thru-the-Wall Series Service and Parts Manual Thru-the-Wall Series 115 Volts UE08A13A US08A10A US10A10A US12A10A 230 Volts US10A30A UE10A33A US12A30A UE12A33A US08/US10/US12/UE08/UE10/UE12 (2/03)
1.4 FEATURES • Designed for cooling only. • Side air-intake, side cooled-air discharge. • Powerful and quiet cooling. • Built in adjustable THERMOSTAT. • Top-down chassis for the simple installation and service. • Washable one-touch filter. • Compact size. 1.5 CONTROL LOCATIONS 1.5.1 COOLING ONLY MODEL •...
Page 7
1.5.2 COOLING AND HEATING MODEL • OPERATION - 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 low speed fan operation.
2. DISASSEMBLY INSTRUCTIONS — Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the inlet grille upward or downward. 2. Remove the screw which fastens the front grille. 3.
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.
2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the screw which fasten the shroud. 3. Remove the shroud. (See Fig. 9) 4. Re-install the component by referring to the removal procedure, above. 2.3 ELECTRICAL PARTS 2.3.1 MOTOR 1.
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.
2.4 REFRIGERATION CYCLE CAUTION Discharge the refrigerant system using Freon Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon . Leave the valve in place after servicing the system. 2.4.1 CONDENSER 1.
Page 13
NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to 6. Recharge as follows : 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 If there is no valve to attach the recovery system, in the High-side, the balance will be put in the install one (such as a WATCO A-1) before venting...
Page 14
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 —14—...
If you plan to use your existing wall sleeve, and it • Pick a location which will allow the conditioned air to is not FRIEDRICH, use procedure B or C below. blow into the area you want. Good installation with...
3.3 PROCEDURE A Install the new unit into the wall sleeve. If you are using the new LGE sleeve supplied with To assemble trim, snap the tab of each piece into your unit, skip to step 3. Otherwise, install the the slot of the other piece as shown below.
3.4 PROCEDURE B Remove the backing from the Horizontal Insulation strip 1 3 / 8 5 / 8 x 27 3 / 16 and attach that to the inside Redirect the louvers at the back of the wall sleeve bottom of the sleeve as shown below. Remove the to 60°...
Page 19
PROCEDURE B To assemble trim, snap the tab of each piece into the slot of the other piece as shown below. Slide trim over the front of the air conditioner until trim is flush with sleeve as shown below. Trim (2 ea) Wall FIG.
3.5 PROCEDURE C Remove the backing from the Horizontal Insulation strip 1 3 / 8 3 / 8 x 27 3 / 16 and attach that to the inside Redirect the louvers at the back of the wall sleeve bottom of the sleeve as shown below. Remove the to 60°...
Page 21
PROCEDURE C To assemble trim, snap the tab of each piece into the slot of the other piece as shown below. Slide Remove the backing from the 13" shim strips and trim over the front of the air conditioner until trim is attach them as shown below in Fig.
3.4 ELECTRICAL REQUIREMENTS 3.4.1 ELECTRICAL DATA (FOR 115V MODEL) Line Cord Plug Use Wall Receptacle Power Supply Do not under any circumstances cut Use 15 AMP time Parallel or remove the grounding prong delay fuse or 15 AMP type from the plug. circuit breaker.
4. TROUBLESHOOTING GUIDE 4.1 OUTSIDE DIMENSIONS " " (626mm) (499mm) 4.2 PIPING SYSTEM CONDENSER COILS 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. 41 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS...
4.3 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 of cold air circulation...
Page 25
Fails to Start Check of power source. Check of circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Only compressor fails to Only fan fails to start. start. Improper wiring. Drop of power voltage.
Page 26
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.
COMPLAINT CAUSE REMEDY Compressor will not run, Voltage Check voltage. See the limits on the preceding. 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.
Page 28
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.
7. REPLACEMENT PARTS LIST R: Service Parts • MODEL: US08A10A/US10A10A/US12A10A N: Non Service parts PART NO. LOCATION DESCRIPTION REMARK US08A10A US10A10A US12A10A 249950 CONTROL BOX ASSY, SINGLE 4995A20131U 4995A20131T 4995A20131S 264110 POWER CORD ASSY 2H00677R 2H00677S 266003 SWITCH, ROTARY 2H00598E 269310 THERMOSTAT ASSY 2H01109M...
Page 33
R: Service Parts • MODEL: US10A30A/US12A30A N: Non Service parts PART NO. LOCATION DESCRIPTION REMARK US10A30A US12A30A 249950 CONTROL BOX ASSY, SINGLE 4995A20131R 264110 POWER CORD ASSY 2H00677G 266003 SWITCH, ROTARY 2H00598E 269310 THERMOSTAT ASSY 2H01109M W0CZZ CAPACITOR, DRAWING 6120AR2194D 149410 KNOB ASSY 4941A30005B...
Page 34
R: Service Parts • MODEL: UE08A13A/UE10A33A/UE12A33A N: Non Service parts PART NO. LOCATION DESCRIPTION REMARK UE08A13A UE10A33A UE12A33A 249950 CONTROL BOX ASSY, SINGLE 4995A20131W 4995A20131V 264110 POWER CORD ASSY 2H00677S 2H00677U 266003 SWITCH, ROTARY 2H00598F 269310 THERMOSTAT ASSY 2H01127D W0CZZ...
Page 35
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.:3828A20294L Printed in the U.S.A US08/US10/US12/UE08/UE10/UE12 (2/03)