Friedrich Z-Star ZQ05C10 Service And Parts Manual
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Friedrich Z-Star ZQ05C10 Service And Parts Manual

Friedrich Z-Star ZQ05C10 Service And Parts Manual

115 volts
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Summary of Contents for Friedrich Z-Star ZQ05C10

  • Page 2: Table Of Contents

    1. PREFACE ...3 1.1 FEATURES...3 1.2 SPECIFICATIONS ...3 1.3 LOCATIONS OF CONTROLS ...4 1.4 SAFETY PRECAUTIONS ...4 1.5 INSULATION RESISTANCE TEST ...4 2. DISASSEMBLY INSTRUCTIONS 2.1 MECHANICAL PARTS ...5 2.1.1 FRONT GRILLE ...5 2.1.2 CABINET...5 2.1.3 CONTROL BOARD ...5 2.2 AIR HANDLING PARTS ...6 2.2.1 AIR GUIDE UPPER ...6 2.2.2 ORIFICE, TURBO FAN AND FAN ...6 2.2.3 MOTOR ...7...

  • Page 3: Preface

    This service manual provides various service information, including the mechanical and electrical parts, etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

  • Page 4: Locations Of Controls

    Thermostat Warmer Cooler Temperature CAUTION : After switching the air conditioner from Cool to Off or Fan, wait at least 3 minutes before switching it back to Cool. 1.4 SAFETY PRECAUTIONS 1. When servicing, set the ROTARY SWITCH to Off and unplug the power cord.

  • Page 5: Disassembly Instructions

    2. DISASSEMBLY INSTRUCTIONS 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Disconnect the unit from source of power. 2. Remove the two knobs by pulling them off. Using a screwdriver, remove the screw that secures the front grille to control board. (See Figure 1) 3.

  • Page 6: Air Handling Parts

    2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE UPPER 1. Disconnect the unit from the power source. 2. Remove the front grille. (Refer to Section 2.1.1) 3. Remove the cabinet. (Refer to Section 2.1.2) 4. Remove the control panel. (Refer to Section 2.1.3) 5.

  • Page 7: Motor

    2.2.3 MOTOR 1. Disconnect the unit from the power source. 2. Remove the front grille. (Refer to Section 2.1.1) 3. Remove the cabinet. (Refer to Section 2.1.2) 4. Remove the control panel. (Refer to Section 2.1.3) 5. Remove the upper air guide . (Refer to Section 2.2.1) 6.

  • Page 8: Compressor

    2.3.2 COMPRESSOR 1. Remove the front grille and cabinet. (Refer to Section 2.1) 2. Discharge the refrigerant by using a refrigerant recovery system. 3. Remove the overload protector. (Refer to Section 2.3.1) 4. After discharging the unit completely, unbraze the suction and discharge pipes at the compressor connections.

  • Page 9: Power Cord

    2.3.6 POWER CORD 1. Disconnect the unit from source of power. 2. Remove the front grille. (Refer to Section 2.1.1) 3. Remove the cabinet. (Refer to Section 2.1.2) 4. Remove a screw that secures control panel to base pan. (Refer to Section 2.1.3) 5.

  • Page 10: Evaporator

    2.4.2 EVAPORATOR 1. Remove the cabinet. 2. Discharge the refrigerant by using a refrigerant recovery system. 3. Remove the upper air guide .(Refer to Section 2.2.1) 4. After discharging the refrigerant completely, unbraze the interconnecting tube at the evaporator connections. 5.
  • Page 11 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 and service valve. CONDENSER (HIGH PRESSURE SIDE) COMPRESSOR EXTERNAL VACUUM PUMP Figure 21A-Pulling Vacuum COMPOUND GAUGE MANIFOLD GAUGE...

  • Page 12: Troubleshooting Guide

    3. TROUBLESHOOTING GUIDE 3.1 OUTSIDE DIMENSIONS (unit: inches) ") ") ") ") 9/16 ") ") (0.8 ") 3/32 ") 3/32 ") ") —12—...

  • Page 13: Piping System

    This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. EVAPORATOR COILS COMPLETE LIQUID BOIL OFF POINT COOLED ROOM AIR HEAT LOAD LIQUID PRESSURE DROP ROOM AIR CONDITIONER CYCLE OF REFRIGERATION VAPOR INLET SUCTION LINE COOL LOW PRESSURE VAPOR OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH MOTOR...

  • Page 14: Troubleshooting Guide

    3.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two categories. The one is called Starting Failure which is caused by an electrical defect. The other is Ineffective Air Con- ditioning caused by a defect in the refrigeration circuit and/or improper application. Unit is running but cooling is ineffective.
  • Page 15 Check power source. Check control switch setting. Compressor fails only to start. Drop of power voltage. Defect of compressor or capacitor. Capacitor check. Replacement. Irregular motor resistance ( ) Irregular motor insulation ( ) Replacement of compressor . Fails to Start Improper thermostat setting Loose terminal...
  • Page 16 ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING 115V ± 10% COMPLAINT Fan motor will not run. No power Power supply cord Rotary switch Wire disconnected or connection loose Capacitor (Discharge capacitor before testing.) Will not rotate Fan motor runs.
  • Page 17 COMPLAINT Fan motor noise. Blower Loose set screw Worn bearings Compressor will not run, Voltage fan motor runs. Wiring Rotary Thermostat Capacitor (discharge capacitor before servicing.) Compressor Overload Compressor cycles on Voltage overload. Overload CAUSE If cracked, out of balance, or partially missing, replace it.
  • Page 18 COMPLAINT Compressor cycles on Fan motor overload. Condenser air flow restriction Condenser fins (damaged) Capacitor Wiring Refrigeration system Insufficient cooling Air filter Unit undersized Excessive noise Blower or fan Copper tubing CAUSE If not running, determine the cause. Replace if required.

  • Page 19: Circuit Diagram

    4. CIRCUIT DIAGRAM LOCATION POWER CORD ASSY FAN MOTOR COMPRESSOR ROTARY SWITCH THERMOSTAT CAPACITOR OVERLOAD PROTECTOR MODEL: ZQ05C10 POWER INPUT BK(BR) (Plain) ROTARY SWITCH MOTOR OR(BR) OR(BR) COMP. THERMOSTAT 3854AR2330A WIRING DIAGRAM ROCKER SWITCH DESCRIPTION —19— WH(BL) (Ribbed) GN(GN/YL) CAPACITOR SYNC.

  • Page 20: Exploded View

    5. EXPLODED VIEW 749740 130910 132111-1 132111-2 135312 149410 147582-1 249950 266003 264110 269310 W0CZZ 349480 147581 359012 W48602 147582-2 354210 152302 135313 135500 550140 —20— 559011 554030 149980 352390 130410 352111 352115 567502 554160 35211A W48602 346811 352390-1 352113...

  • Page 21: Service Parts List

    LocNo FRIEDRICH 130410 67302921 130910 67303709 135312 67306003 135313 67304200 135500 67300309 147581 67304600 147582-1 67304501 149410 67304100 149980 67303115 152302 67304300 269310 67300400 264110 67300020 346811 67300500 352390 67303027 354210 67303410 35211A 67302222 352113 67302311 352115 67302020 352390-1 67302727...
  • Page 22 MEMO —22—...
  • Page 23 MEMO —23—...
  • Page 24 Use Factory Certified Parts... 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) 357-4490 P/NO.:3828A21017A...

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