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Friedrich US08B10A manual

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Table of contents for the manual

  • Page 1

    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 US12B10A:Starting with serial number LGBK00001 230 Volts US10B3 0 A Starting with serial number LGBK00001 US12B30B: US14B30A[...]

  • Page 2

    —2— 1. PREF A CE 1.1 SAFETY PRECAUTIONS ...............................2 1.2 INSULATION RESISTANCE TEST.................2 1.3 SPECIFICATIONS ..........................................3 1.4 FEATURES .....................................................5 1.5 CONTROL LOCATIONS .................................5 2. DISASSEMBL Y INSTR UCTIONS 2.1 ME[...]

  • Page 3

    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.E.R (Btu/w.h) REFRIGERANT (R-22) CHARGE(g) OPERATING INDOOR (°C) TEMPERATURE OUTDOOR (°C) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS, FAN/COOLING FAN MOTOR OPERATION CONTR[...]

  • Page 4

    —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. CONTROL CONSTRUCTION COMPRESSOR FAN MOTO[...]

  • Page 5

    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. • Compact size. • VENTILA TION Push the lever to the "CLOSE" position to[...]

  • Page 6

    — 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. 2.1.2 CABINET 1. After disassembling the FRONT GRILLE, re[...]

  • Page 7

    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. (See Fig. 4) 4. Move the evaporator to the side carefully. 5. Remove the orifice. (See [...]

  • Page 8

    — 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 2.1.2) 2. Remove the clamp cord and disconnect the wire housing in control box. (Refer to sect[...]

  • Page 9

    — 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. 6. Pull the power cord. (See Fig. 13) 7. Re-install the components by referring to the re[...]

  • Page 10

    — 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. 5. Remove[...]

  • Page 11

    — 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. 2. After discharging the unit completely, remove the desired component, and unbra[...]

  • Page 12

    — 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. A COMPOUND GAUGE EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR CAPILLARY TUBE CONDENSER (HIGH PRESSURE SIDE) SEE INSETS BELOW M[...]

  • Page 13

    — 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 3.2 PIPING SYSTEM Following is a brief description of the important components and their functions in the refrige[...]

  • Page 14

    — 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. Unit is running but cooling is ineffective Ineffective C[...]

  • Page 15

    — 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 . Irregular motor resistance ( ). Irregular motor insulation ( ). Replacement of f an motor Regular but f ails to star t Replacement of compressor (locking of rotor , metal) Improper ther mostat se[...]

  • Page 16

    — 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. Replace switch if defective. Connect wire. Refer to wiring diagram for terminal identi[...]

  • Page 17

    — 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. If wires are off, refer to wiring diagram for identification, and replace. Ch[...]

  • Page 18

    — 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.) If not running, determine the cause. Replace if required. Remove the cabinet. [...]

  • Page 19

    — 19 — 4. SCHEMA TIC DIA GRAM 4.1 CIRCUIT DIA GRAM • MODEL : US08B10A, US10B10A, US12B10A, US10B30A, US12B30B,US14B30A[...]

  • Page 20

    —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 749180 147582-1 147581 135303 152302 147582-2 135312 130900 W48602 731273 E B 263230 268712 268714 W6631 267110 W0CZZ 238310 237200 A C 264110 M O E D M [...]

  • Page 21

    — 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. SINGLE R 749180 67308102 FRA M E R 135303 67306106 GRILLE,INLET R 135312 67306012 GRILLE A SSEMBLY ,FRONT [...]

  • Page 22

    — 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. SINGLE R 749180 67308102 FRA ME R 135303 67306106 GRILL E,INLET R 135312 67306012 GRILLE A SSEMBLY ,FRONT (SINGLE) R 238310 67500114 ESCU[...]

  • Page 23

    — 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. SINGLE R 749180 67308102 FRA M E R 135303 67306106 GRILLE,INLET R 135312 67306012 GRIL LE A SSEMBLY,FRO NT(SING LE) R 238310 67500114 ESCU[...]

  • Page 24

    — 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. SINGLE R 749180 67308102 FRA M E R 135303 67306106 GRILLE,INLET R 135312 67306012 GRILLE A SSEMBLY ,FRONT (SINGLE) R 238310 67500114 ESCU[...]

  • Page 25

    — 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 . SINGLE R 749180 673008102 FRA M E R 135303 67306106 GRILL E,INLET R 135312 67306012 GRILLE AS SEM BLY,FRONT (SINGLE) R 238310 67500114 ES[...]

  • Page 26

    • 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. SINGLE R 749180 67308102 FRA M E R 135303 67306106 GRILLE,INLET R 135312 67306012 GRILLE A SSEMBL Y,FRONT (SINGLE) R 238310 67500114 ESCUTCHEON R W48602 67302500 CLA M P,SPRIN[...]

  • Page 27

    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. Visit our web site at www.friedrich.com P/NO.:3828A20294U[...]