Instruction/ maintenance manual of the product US12B10A Friedrich
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Unifit. Cool (03/07) Thru-the-Wall Series Thru-the-Wall Series Ser vice and P ar ts Manual 115 Volts US08B10A:Starting with serial number LFMK00001 US10B10A:Starting with serial number LGBK00003 US12B.
—2— 1. PREF A CE 1.1 SAFETY PRECAUTIONS ...............................2 1.2 INSULATION RESISTANCE TEST.................2 1.3 SPECIFICATIONS ..........................................3 1.4 FEATURES .................................................
US08B10A US10B10A US12B10A —3— 1.3 SPECIFIC A TIONS 1.3.1 FOR US08B10A/US10B10A/US12B10A POWER SUPPLY COOLING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) E.
—4— 1.3.2 FOR US10B30A/US12B30B/US14B30A REMAR POWER SUPPLY COOLING CAPACITY (Btu/h) INPUT (W) RUNNING CURRENT (A) E.E.R. (Btu/W.h) INDOOR (°C) OUTDOOR (°C) REFRIGERANT (R-22) CHARGE(g) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS (FAN/COOLING/HEATING) FAN MOTOR OPERATION CONTROL ROOM TEMP.
1.4 FEA TURES • Designed for cooling only. • Powerful and quiet. • Slide out chassis for the simple installation and service. 1.5 CONTR OL LOCA TIONS 1.5.1 COOLING ONL Y MODEL • OPERA TION • Built in adjustable THERMOSTAT. • Washable one-touch filter.
— 6 — 2.1 MECHANICAL P AR TS 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 7 — 7 — 2.2 AIR HANDLING P AR TS 2.2.1 ORIFICE, AND TURBO F AN 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.
— 8 — 2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the shroud. (See Fig. 9) 3. Re-install the components by referring to the removal procedures, above. 2.3 ELECTRICAL P AR TS 2.3.1 MO T OR 1. Remove the cabinet. (Refer to section 2.
— 9 — 2.3.4 PO WER 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 Base pan. 4. Disconnect 2 receptacles. 5. Remove a screw which fastens the clip cord.
— 10 — 2.4 REFRIGERA TION CYCLE 2.4.1 CONDENSER 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the brace. (Refer to section 2.2.1) 3. Remove the 7 screws which fasten the condenser. 4. After discharging the refrigerant completely into a Freon TM Recovery System, unbraze the interconnecting tube at the condenser connections.
— 11 — — Replacement of the refrigeration cycle. 1. When replacing refrigeration components, be sure to discharge the refrigerant system using a Freon TM recovery System. Install a valve for the recovery, before venting the Freon, remove the valve when finished.
— 12 — 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.
— 13 — 3. TR OUBLESHOO TING GUIDE 3.1 OUTSIDE DIMENSIONS 20- 3 / 32 " (499mm) 24" (610mm) 14- 13 / 32 " (366mm) CONDENSER COILS EV APORA T OR COILS FA N M OTO R : REFRIGERANT FLOW TURBO F AN CAPILLAR Y TUBE COMPRESSOR 3.
— 14 — 3.3 TR OUBLESHOO TING GUIDE In general, possible trouble is classified in two causes. 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/or improper application.
— 15 — Fails to Start Check circuit break er and fuse. Check control board Only f an fails to start. Improper wiring. Def ect of fan motor capacitor .
— 16 — — 16 — COMPLAINT CAUSE REMEDY Check voltage at outlet. Correct if none. Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Check switch continuity. Refer to wiring diagram for terminal identification.
— 17 — NAME PLATE RATING MINIMUM MAXIMUM 115V 103.5V 126.5V 208/230V 187V 253V COMPLAINT CAUSE REMEDY Check voltage. See the limits on the preceding. page. If not within limits, call an electrician. Check the wire connections, if loose, repair or replace the terminal.
— 18 — COMPLAINT CAUSE REMEDY Check the voltage. See the limits on the preced- ing page. If not within limits, call an electrician. Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.
— 19 — 4. SCHEMA TIC DIA GRAM 4.1 CIRCUIT DIA GRAM • MODEL : US08B10A, US10B10A, US12B10A, US10B30A, US12B30B,US14B30A.
—2 0 — 5 . EXPLODED VIEW • MODEL : US08B10A, US10B10A, US12B10A, US10B30A, US12B30B,US14B30A 567502 550140 349600 559010 W48602 359012 352380 346811 147900 149980 130410 435300 435301 435301 749.
— 21 — 6. REPL A CEMENT P A R TS LIST • MODEL: US08B10A LocNo FRD P/NO Description REMARK W0CZZ 67300726 CA PA CIT OR,DRA WING R 130410 67302925 BA SE A SSEMBLY,SINGLE R 130900 67303712 CA BINET R 731273 67306311 INSTA LL PART A SSEMBLY.
— 22 — • MODEL: US10B10A LocNo FRD P/NO Description REM A RK W0CZZ 67300724 CA PA CITOR,DRAWING R 130410 67302926 BA SE A SSEMBLY,SINGLE R 130900 67303712 CA BINET R 731273 67306311 INSTA LL PART A SSEMBLY.
— 23 — • MODEL: US12B10A LocNo FRD P/NO Description REM A RK W0CZZ 67300724 CA PA CITOR,DRAWING R 130410 67302926 BA SE A SSEMBLY,SINGLE R 130900 67303712 CABINET R 731273 67306311 INSTA LL PART A SSEMBLY.
— 24 — • MODEL: US10B30A LocNo FRD P/NO DESCRIPTION REM A RK W0CZZ 67300723 CA PA CITOR,DRAWING R 130410 67302924 BA SE A SSEMBLY,SINGLE R 130900 67303712 CA BINET R 731273 67306311 INSTA LL PART A SSEMBLY.
— 25 — • MODEL: US12B30B LocNo F RD P/NO DESCRIPTION REMARK W0CZZ 67300723 CA PA CITOR,DRAWING R 130410 67302926 BA SE A SSEMBLY,SINGLE R 130900 67303712 CA BINET R 731273 67306311 INSTALL PA RT A SSEMBLY .
• MODEL: US14B30A — 26 — LocNo FRD P/NO DESCRIPTION REMARK 130410 67302926 BA SE A SSEMBLY,SINGL E R 130900 67303712 CA BINET R 731273 67306311 INSTA LL PART A SSEMBLY.
UNi-fit. Cool (03/07) Printed in the U.S.A Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540 • (210) 357-4400 • FAX (210) 357-4480 FRIEDRICH AIR CONDITIONING CO.
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