SERVICE MANUAL This 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 SAFETY PRECAUTIONS 1.
1.3 SPECIFICATIONS ZQ08C 10,ZQ10C 10,C P 08C 10,C P 10C 10,C P 12C 10 1.3.1 F OR MODE L S IT E MS P OWE R S UP P LY C OOLING C AP AC IT Y (B tu/h) INP UT R UNNING C UR R E NT E .E .R (B T U/W.h)
For a cooler setting, turn clockwise, For a warmmer setting, turn counter clockwise. CONTROLS -”ZQ”MODELS CONTROLS -”ZQ”MODELS • OPERATION (Fig A) : Turns the air conditioner off. MED FAN : Medium fan speed without cooling. LOW FAN : Low fan speed without cooling.
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(Hi ➔ Low ➔ Med ➔ Hi ➔ Low ➔...) ON/OFF TIMER BUTTON ON - When the air conditioner is off, it can be set to automatically turn on. OFF - When the airconditioner is on, it can be set to automatically turn off.
2. DISASSEMBLY INSTRUCTIONS — Before servicing the unit,turn the unit OFF and disconnet the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the lnlet grille downward and remove the air filter. 2. Remove the screw which fastens the front grille.(See Figure 1) 3.
2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE AND TURBO FAN 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 4 screws which fasten the brace. 5.
2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the shroud. (See Figure 8) 3. Re-install the components by referring to the removal procedure, above. 2.3 ELECTRICAL PARTS 2.3.1 OVERLOAD PROTECTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2.
2.3.3 CAPACITOR 1. Remove the control box. (Refer to section 2.1.3) 2. Open the top cover from the control box. (See Figure 11) 3. Pull out the capacitor from the control box. 4. Disconnect all the leads of capacitor terminals. 5.
2.3.5 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the turbo fan. (Refer to section 2.2.1) 3. Remove the fan. (Refer to section 2.2.2) 4. Remove the 4 screws which fasten the motor to the air guide. (See Figure 13) 5.
2.4.3 CAPILLARY TUBE 1. Remove the cabinet. (Refer to section 2.1.2) 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution on previous page) NOTES — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a Freon recovery System.
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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 valves. Figure 16B-Charging Figure 16A-Pulling Vacuum —12—...
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3.2 PIPING SYSTEM CONDENSER COIL MOTOR EVAPORATOR COIL Figure 17 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. EVAPORATOR COILS COMPLETE LIQUID BOIL OFF POINT...
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Check power source. Check control switch setting. Compressor only fails to start. Drop of voltage. Bad capacitor. Capacitor check. Replacement Irregular motor resistance ( Irregular motor insulation ( Replacement of compressor (Motor damaged) Fails to Start Improper thermostat setting. Loose terminal connection. Improper wiring.
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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 Revolves on overload. intermittently Fan motor noise. Blower Loose clamp Worn bearings Voltage Compressor will not run, but fan motor runs.
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COMPLAINT Compressor will not run, Thermostat but fan motor runs. Capacitor (Discharge capacitor before servicing.) Compressor Overload Compressor cycles on Voltage overload. Overload Fan motor Compressor cycles on overload. Condenser air flow restriction Condenser fins (damaged) Capacitor Compressor cycles on overload.
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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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