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26 Room Air Conditioner

Troubleshooting Guide

Troubleshooting Guide

Piping System

Figure 38 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.

MOTOR

COMPRESSOR

OIL

(LIQUID REFRIGERANT)

CAPILLARY TUBE

OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH

SUCTION LINE
COOL LOW PRESSURE VAPOR

COOLED
AIR

COMPLETE LIQUID
BOIL OFF POINT

LIQUID
PRESSURE
DROP

ROOM AIR HEAT LOAD

VAPOR INLET

HOT
DISCHARGED
AIR

LIQUID OUTLET

HIGH PRESSURE VAPOR

LIQUID REFRIGERANT

LOW PRESSURE VAPOR

ROOM AIR CONITIONER

EVAPORATOR COILS

CONDENSER COILS

CYCLE OF REFRIGERATION

Figure 34

CAPILLARY TUBE

COMPRESSOR

BLOWER

EVAPORATOR COIL

CONDENSER COIL

FAN

MOTOR

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Содержание CP06E10

Страница 1: ...Room Air Conditioner Service and Parts Manual ZQ08 CP12 05 06 CP08E10 CP06E10 0F Power Mode Timer 0n 0ff Fan Speed Temp Cool Money Saver Fan Only Dry hr Auto Swing...

Страница 2: ...e Drain Pipe 8 How to Install 9 Operation 13 Location and Function of Controls 13 Remote Control Operations 14 Disassembly 15 Mechanical Parts 15 Air Handling Parts 16 Electrical Parts 17 Refrigeratin...

Страница 3: ...bility of death or serious injury This symbol indicates the possibility of injury or damage to property only WARNING Always install the expansion panel s Improper assembly or installation may cause in...

Страница 4: ...It may cause fire and electric shock Do not operate with wet hands or in damp environment It will cause electric shock Use the air conditioner on a single outlet circuit see page 7 Do not share the o...

Страница 5: ...r the unit and degrade the insulation It may cause an electric shock Never touch the metal parts of the unit when removing the filter Do not block the inlet or outlet They are sharp and may cause inju...

Страница 6: ...e Dimensions This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used...

Страница 7: ...AN SLINGER OUTSIDE DIMENSION inch 18 1 2 x 13 7 8 x 20 11 16 W x H x D mm 469 x 353 x 526 OPERATING POWER SUPPLY MODLES ITEMS COOLING CAPACITY Btu h INPUT W RUNNING CURRENT A E E R BTU W h REFRIGERANT...

Страница 8: ...ower than the front about 1 4 This will force condensed water to the outside 5 Install the unit with the bottom about 30 60 above the floor level The setting conditions must be checked prior to initia...

Страница 9: ...OUT DOORS to help condensation to drain properly to the outside 3 Install a second wood strip approximately 6 long by 11 2 wide and same thickness as first strip in the center of the outer sill flush...

Страница 10: ...e cabinet 7 Insert the Frame Curtain into the Upper Guide and Frame Guides 8 Fasten the curtains to the unit with 4 Type A screws CABINET INSTALLATION 1 Open the window Mark a line on center of the wi...

Страница 11: ...gure 8 6 The cabinet should be installed with a very slight tilt about 1 2 downward toward the outside See Figure 9 Adjust the bolt and the nut of Sill Support for balancing the cabinet 7 Attach the c...

Страница 12: ...the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Figure 14 14 Lift the inlet grille and secure it with a Type...

Страница 13: ...urn the operation switch to the Low Cool setting 2 Set the thermostat control as needed DESIGNED FOR COOLING ONLY POWERFUL AND INCREDIBLE COOLING TOP DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVI...

Страница 14: ...F Power Mode Timer 0n 0ff Fan Speed Temp Cool Money Saver Fan Only Dry hr Auto Swing 1 3 2 4 6 5 7 6 AUTO SWING This button can automatically control the air flow direction 7 To receive the signal fro...

Страница 15: ...et at back 3 Pull the base pan forward See Figure 18 4 Remove the cabinet 5 Re install the component by referring to the removal procedure above 3 CONTROL BOX 1 Disconnect the unit from the power sour...

Страница 16: ...remove it See Figure 21 10 Remove the clamp with a hand plier which secures the blower 11 Remove the blower 12 Remove the 4 screws which fasten the air guide from the barrier 13 Move the air guide bac...

Страница 17: ...ve 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 24 Disassembly 2 COMPRESSOR 1 Remove the cabi...

Страница 18: ...ee Figure 27 Figure 27 Figure 26 1 Remove the control box 2 Remove the knobs and the screw which fasten control panel from control box 3 Remove the screw which is located in the front 4 Open the botto...

Страница 19: ...en the control box 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 30 6 Remove the power cord 7 Re install...

Страница 20: ...final charging 6 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line throug...

Страница 21: ...aking 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...

Страница 22: ...1 1 S S S S S S S LOCATION NO DESCRIPTION REMARKS Q TY PER SET S Service Parts N Non Service Parts MODEL 8 P T C 1 S COMP MOTOR WH BL POWE R INPUT Plain GN GN YL BK BR R ibbed WIR ING DIAGR AM 3854AR...

Страница 23: ...it Diagram MODEL WG8005R WG1005R LOCATION NO 1 2 3 4 5 6 7 8 Q TY PER SET 1 1 1 1 1 1 1 1 DESCRIPTION POWER CORD ASSEMBLY FAN MOTOR COMPRESSOR DISPLAY P W B ASSEMBLY MAIN P W B ASSEMBLY THERMISTOR CAP...

Страница 24: ...24 Room Air Conditioner Electronic Control Device Schematic Diagram...

Страница 25: ...Service Manual 25 Components Location For Main P W B ASM Schematic Diagram...

Страница 26: ...cooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LINE COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LI...

Страница 27: ...re difference of inlet outlet air 44 50 F 7 10 C Replacement of unit if the unit is beyond repair Check outdoor coil heat exchanger and fan operation Check heat load increase Check cold air circulatio...

Страница 28: ...ompressor fails only to start Defect of compressor capacitor Replacement of compressor Motor damaged Irregular motor insulation Irregular motor resistance Check of circuit breaker and fuse Check contr...

Страница 29: ...f IC01D DC 12V Is output Voltage of IC02D DC 5V Is the voltage No 18 of Micom DC 5V Exchange Main P W B Ass y Is the connection between Main and Display all right Is the reset circuit all right The No...

Страница 30: ...eck the RY COMP Check the wiring Diagram NO NO NO NO YES YES YES YES Possible Trouble 2 The compressor does not operate Is the wire connection of RY COMP all right Check the RY COMP Connect LEAD Wire...

Страница 31: ...n Connect connector to CN DISP1 exactly NO NO NO YES YES YES Possible Trouble 5 Romote controller does not operate NO NO NO NO YES YES YES Is the IC01G all right Is the connection of CN DISP1 all righ...

Страница 32: ...ose terminal Capacitor Discharge Test capacitor capacitor before testing Replace if not within 10 of manufacturer s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud o...

Страница 33: ...am correct the connections Thermistor Check the TEMP control If not at the lowest number set TEMP control to this setting and restart the unit Check the continuity of the thermistor Replace the thermi...

Страница 34: ...base before re assembling Condenser fins If the condenser fins are closed over a large damaged area on the coil surface head pressures will increase causing the compressor to cycle Straighten the fin...

Страница 35: ...264110 238310 237200 268711 2 135510 146812 W0CZZ 554030 559010 552113 35211A 352113 352115 1 352115 2 731273 267110 552102 135314 749740 352380 159830 148000 130910 346811 349600 W48602 149980 359012...

Страница 36: ...22 PWB PCB Assy Main R 146811 67300902 67300902 Swing Louver Motor R 349600 67303604 67303604 Bracket Motor R 346811 67303013 67303005 Motor Assy Single R 349480 67303412 67303412 Orifice R 354210 674...

Страница 37: ...ost Office Box 1540 4200 N Pan Am Expressway San Antonio Texas 78295 1540 210 357 4400 FAX 210 357 4490 FRIEDRICH AIR CONDITIONING CO Visit our web site at www friedrich com Use Factory Certified Part...

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