Room Air Conditioner Service and Parts Manual ZStar TM ZQ08 (4-04)
CONTENTS 1. PREFACE 3. INSTALLATION 1.1 SAFETY PRECAUTIONS................................2 1.2 INSULATION RESISTANCE TEST .................2 1.3 SPECIFICATIONS...........................................3 1.4 FEATURES......................................................4 1.5 CONTROL LOCATIONS .................................4 3.1 INSTALLATION HARDWARE ................................12 3.2 SELECT THE BEST LOCATION ...........................12 3.3 WINDOW REQUIREMENTS .................................
1.3 SPECIFICATIONS MODELS ZQ08A10C ITEMS 1ø, 115V, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 8,000 INPUT (W) 820 RUNNING CURRENT (A) 7.6 (Btu/W.h) 9.8 E.E.R OPERATING INDOOR TEMPERATURE OUTDOOR (°C) 26.7(DB)* 19.4(WB)** (°C) 35(DB) 23.9(WB) REFRIGERANT (R-22) CHARGE 261g (9.
1.4 FEATURES • Designed for cooling only. • Powerful and whisper cooling. • Slide-in and slide-out chassis for the simple installation and service. • Side air-intake, side cooled-air discharge. • Built in adjustable THERMOSTAT. • Washable one-touch filter. • Compact size. • Reliable and efficient rotary compressor equipped. 1.5 CONTROL LOCATIONS 1.5.1 CONTROL ONLY MODEL • VENTILATION The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions.
2. DISASSEMBLY INSTRUCTIONS — Before disassembling, turn the POWER SWITCH to OFF and disconnect the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the INLET GRILLE downward and remove the air filter. 2. Remove the screw which fastens the FRONT GRILLE. 3. Pull the FRONT GRILLE from the right side. 4. Remove the FRONT GRILLE. 5. Re-install the component by referring to the above removal procedure. (See figure 1) Figure 1 Shipping screws 2.1.2 CABINET 1.
2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE AND BLOWER 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove the control box. (Refer to section 2.1.3) 4. Remove the 3 screws which fasten the brace. 5. Remove the brace. 6. Remove the 2 screws which fasten the evaporator. 7. Move the evaporator forward and pulling it upward slightly. (See Figure 4) 8. Move the evaporator to the left carefully. 9.
2.3 ELECTRICAL PARTS 2.3.1 OVERLOAD PROTECTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the nut which fastens the terminal cover. 3. Remove the terminal cover. (See Figure 7) 4. Remove all the leads from the overload protector. 5. Remove the overload protector. 6. Re-install the component by referring to the removal procedure, above. Figure 7 2.3.2 COMPRESSOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Discharge the refrigerant system using a FreonTM Recovery System.
2.3.4 POWER CORD 1. Remove the control box. (Refer to section 2.1.3) 2. Open the control box. (Refer to section 2.3.3) 3. Disconnect the grounding screw from the control box. 4. Disconnect the 2 receptacles. 5. Remove a screw which fastens the clip cord. (See Figure 10) 6. Remove the power cord. 7. Re-install the component by referring to the above removal procedure, above. (Use only one ground-marked hole for ground connection.) 8.
2.4 REFRIGERATING CYCLE CAUTION Discharge the refrigerant system using a FreonTM Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system. 2.4.1 CONDENSER 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the 3 screws which fasten the brace.(Refer to section 2.2.1) 3. Remove the 3 screws which fasten the condenser and shroud. 4.
NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a FreonTM recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system. 2. After discharging the unit completely, remove the desired component, and unbraze the pinch-off tubes. 3.
Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.
3. INSTALLATION 3.1 INSTALLATION HARDWARE Window sash seal Left frame curtain Foam top window gasket Type A (13) Type B (3) Type C (5) Frame guide(2) Window locking bracket Sill support(2) Right frame curtain Nut (2) Bolt (2) 3.2 SELECT THE BEST LOCATION AWNING FENCE HEAT RADIATION COOLED AIR 30"~60" Step 1. To prevent vibration and noise, make sure the unit is installed securely and firmly Step 2. If possible, install the unit where sunlight does not shine directly on the unit. Step 3.
3.3 WINDOW REQUIREMENTS Step 1. These instructions are for a standard double hung window. You will need to modify them for other types of windows. 25" to 36" (With accordion panels) 15" min (With frame curtain) Stool Step 2. The air conditioner can be installed without the frame curtain if needed to fit in a narrow window. See the window opening dimensions to the right. Offset Step 3. All supporting parts must be secured to firm wood, masonry, or metal. 1 /2 " Step 4.
3.5 PREPARING THE UNIT FOR INSTALLATION Shipping screws ✓ Remove the 2 shipping screws from the back of the case. ✓ Remove the 2 screws on each side of the case. Keep these for later use. ✓ Slide the air conditioner from the case by gripping the base pan handle and pulling forward while bracing the case. 3.6 BEFORE INSTALLATION... ✓ Cut the window sash seal to the proper length. Peel off the backing and attach the seal to the underside of the window sash.
3.7 INSTALL THE CASE IN THE WINDOW Window Sash Top mountaing rail Sash seal Step 1. Open the window and mark the centerline of the window stool (or desired air conditioner location). Step 2. Carefully place the case on the window stool and align the center mark on the bottom front with the centerline of the stool Cabinet Top mounting rail Step 3.
3.9 INSTALL THE AIR CONDITIONER IN THE CASE Step 1. Slide the air conditioner into the case. Reinstall the 2 screws removed earlier on each side of the case. Power Cord Screw Screw Step 2. Before installing the front grille, pull out the vent control lever located above the unit control knobs, as shown. Step 3. Attach the front grille to the case by inserting the tabs on the grille into the slots on the front of the case. Push the grille in until it snaps into place.
4. TROUBLESHOOTING GUIDE 4.
4.2 PIPING SYSTEM CONDENSER COIL FAN CAPILLARY TUBE MOTOR COMPRESSOR BLOWER EVAPORATOR COIL Discharge the refrigerant system using a Freon TM Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system. Do not vent FreonTM into the atmosphere.
4.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect. The other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling is ineffective. Ineffective Cooling Check of cold air circulation for smooth flow. Dirty indoor coil (Heat exchanger) Check of outdoor coil (heat exchanger) & fan operation. Check heat load increase.
Fails to Start Check of power source. Check of circuit breaker and fuse. Check of control switch setting. Gas leakage of feeler bulb of thermostat Check of control switch. Only compressor fails to start. Only fan fails to start. Improper wiring Drop of power voltage Improper thermostat setting Defect of fan motor capacitor Defect of compressor capacitor Loose terminal connection Check capacitor. Resistance irregular motor ( ). Insulation irregular motor ( ).
ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V 103.5V 126.5V COMPLAINT Fan motor will not run. CAUSE REMEDY 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. Replace switch if none defective. Wire disconnected or connection loose Connect wire.
COMPLAINT Fan motor noise. Compressor will not run, fan motor runs. CAUSE REMEDY Fan 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. If the motor hums or noise appears to be internal while running, replace motor. Voltage Check voltage. See the limits on the preceding page.
COMPLAINT Compressor cycles on overload Insufficient cooling Excessive noise CAUSE REMEDY Fan motor If not running, determine the cause. Replace if required. Condenser air flow restriction Remove the cabinet, inspect the interior surface of the condenser. If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the interior base before re-assembling.
5. SCHEMATIC DIAGRAM • CIRCUIT DIAGRAM • MODEL : ZQ08A10C POWER INPUT BK(BR) WH(BL) (Plain) (Ribbed) 8 GN(GN/YL) ROTARY SWITCH 7 4 8 L RD RD 6 H BK BK 4 M BL BL 1 MOTOR OR(BR) 2 1 2 GN(GN/YL) YL CAPACITOR YL F OR(BR) C 3 BK BL R COMP. C S BR(YL) RD RD BL BL OLP THERMOSTAT 9 H BK RD P.T.C 5 WIRING DIAGRAM LOCATION NO. 1 2 3 4 5 6 7 8 9 6 BK 3854AR3563A PART NO.
—25— 37 43 41 C A E 36 2 55 44 1 35 3 4 60 59 57 42 58 54 40 39 47 38 56 46 45 5 6 32 30 29 27 18 21 20 23 31 24 34 22 25 62 19 26 61 17 28 D 7 9 10 B 29 48 50 33 49 52 53 51 8 11 14 13 12 16 15 6.
7. REPLACEMENT PARTS LIST • MODEL: ZQ08A10C LOCATION NO. FRIEDRICH PART NO. A PART NO.
LOCATION NO. FRIEDRICH PART NO. PART NO.
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) 357-4480 P/NO.: 3828A20038U Printed in the U.S.
