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Summary of Contents for Friedrich ZStar ZQ05B10
- Page 1 Room Air Conditioner Service and Parts Manual ZStar ® ZQ05B10 ZQ07B10 ZQ05/ZQ07 (06/05)
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Page 2: Table Of Contents
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 ....................5 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... -
Page 3: Preface
1. 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. 1.1 FEATURES •... -
Page 4: Locations Of Controls
1.3 LOCATIONS OF CONTROLS : Turns air conditioner off. Operation Hi Fan : High speed fan operation without cooling. Cool Lo Fan : Low speed fan operation without cooling. Cool Hi Cool : Cooling with high speed fan operation. Mode Lo Cool : Cooling with low speed fan operation. -
Page 5: Disassembly Instructions
2. DISASSEMBLY INSTRUCTIONS 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE Figure 1 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 Figure 6 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 Figure 10 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 air guide upper. (Refer to Section 2.2.1) 6. -
Page 8: Compressor
2.3.2 COMPRESSOR Figure 14 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 Figure 18 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/CONDENSER wise. This will keep oil from foaming and being drawn into the vacuum pump. 1. Remove the cabinet. 2. Discharge the refrigerant by using a refrigerant 6-3. Operate the vacuum pump for 20 to 30 min- recovery system. utes, until 600 micron vacuum is obtained. - 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. COMPOUND GAUGE MANIFOLD GAUGE CONDENSER SEE INSETS (HIGH PRESSURE SIDE) BELOW COMPRESSOR EVAPORATOR...
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Page 12: Troubleshooting Guide
3. TROUBLESHOOTING GUIDE 3.1 OUTSIDE DIMENSIONS (unit: mm [in]) 42 (1 ") 370 (14 ") 472 (18 ") 42 (1 ") 9/16 120 (4 ") 27.5 (1 ") 22.5(0.8 ") 3/32 155(6 ") 3/32 370 (14 ") 472 (18 ") —12—... -
Page 13: Piping System
3.2 PIPING SYSTEM CONDENSER COILS MOTOR CAPILLARY TUBE TURBO FAN EVAPORATOR COILS Figure 22 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS... -
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 Fails to Start Check circuit breaker Check power source. and fuse. Check control switch Gas leakage of capillary setting. bulb on thermostat. Check control switch. Compressor fails to Fan only fails to start. start. Improper wiring. Improper thermostat Drop of power voltage. setting Defect of fan motor capacitor.
- Page 16 ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V ± 10% 103.5V 126.5V 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.
- Page 17 COMPLAINT CAUSE REMEDY Fan motor noise. If cracked, out of balance, or partially missing, replace it. Blower If cracked, out of balance, or partially missing, replace it. Loose set screw Tighten it. Worn bearings If knocking sounds continue when running or loose, replace the motor.
- Page 18 COMPLAINT CAUSE REMEDY Compressor cycles on Fan motor If not running, determine the cause. Replace if overload. required. Condenser air flow Remove the cabinet, inspect the interior surface restriction of the condenser. If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush.
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Page 19: Circuit Diagram
4. CIRCUIT DIAGRAM MODEL: ZQ05B10,ZQ07B10 POWER INPUT BK(BR) WH(BL) (Plain) (Ribbed) ROTARY SWITCH GN(GN/YL) MOTOR OR(BR) CAPACITOR OR(BR) COMP. THERMOSTAT SYNC. M. 3854AR2330A WIRING DIAGRAM ROCKER SWITCH S: Service Parts N: Non Service Parts LOCATION Q'TY DESCRIPTION MARKS PER SET POWER CORD ASSY FAN MOTOR COMPRESSOR... -
Page 20: Exploded View
5. EXPLODED VIEW 130910 559011 W48602 554030 149980 349480 352380 135312 147581 149410 359012 346811 147582-1 W48602 352390 147582-2 354210 130410 152302 135313 249950 266003 135500 264110 352111 352115 567502 352113 269310 554160 35211A W0CZZ 550140 —20—... -
Page 21: Service Parts List
6. SERVICE PARTS LIST • ZQ05B10 . ZQ07B10 ZQ05B10 Loc No FRIEDRICH Description 130410 67302921 BASE ASSEMBLY,WELD[SINGLE] 130910 67303709 CABINET ASSEMBLY,SINGLE 135312 67306003 GRILLE ASSEMBLY,FRONT(SINGLE) 135313 67306103 GRILLE,INLET 135500 67300309 COVER 147581 67304600 LINK 147582-1 67304500 VANE,VERTICAL 147582-2 67304501 VANE,VERTICAL... - Page 22 ZQ07B10 Loc No FRIEDRICH Description 130410 67302921 BASE ASSEMBLY,WELD[SINGLE] 130910 67303709 CABINET ASSEMBLY,SINGLE 135312 67306003 GRILLE ASSEMBLY,FRONT(SINGLE) 135313 67306103 GRILLE,INLET 135500 67300309 COVER 147581 67304600 LINK 147582-1 67304500 VANE,VERTICAL 147582-2 67304501 VANE,VERTICAL 149980 67303100 SHROUD 152302 67304300 FILTER(MECH),A/C 264110 67300017...
- 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...
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