Friedrich CP05C10 User's Manual
Contents
1. 14 4 CIRCUIT DIAGRAM a 19 S EXPEODED VIEW ee ee ae alien 20 6 SERVICE PARTS LIST na in ea 21 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 DESIGNED FOR COOLING ONLY BUILT IN ADJUSTABLE THERMOSTAT WASHABLE ONE TOUCH FILTER COMPACT SIZE 1 2 SPECIFICATIONS MODELS ITEMS 5 10 COOLING CAPACITY BTU h 5 100 POWER SUPPLY Phase V Hz 10 115V 60HZ INPUT W 520 OPERATING CURRENT AMP 4 4 REFRIGERANT CONTROL CAPILLARY TUBE REFRIGERANT CHARGE R 22 330g 11 6 oz INSIDE FAN TURBO FAN OUTSIDE FAN PROPELLER FAN WITH SLINGER RING AIR DISCHARGE 2 WAY RIGHT AND LEFT CHASSIS TOP DOWN PROTECTOR OVERLOAD PROTECTOR FOR COMPRESSOR INTERNAL PROTECTOR FOR FAN MOTOR TEMPERATURE CONTROL THERMISTOR FAN MOTOR 6 POLES 21W 1 3 LOCATIONS OF CONTROLS On Off Dry Fan Only Oma Cool 4 Timer 1 On Off Timer 1 1 TEMPERATURE SETTING These buttons control the temperature of t2. PART NO LOCATION x a DESCRIPTION an 1 POWER CORD ASSY 67300020 1 2 FAN MOTOR 67303026 1 3 COMPRESSOR 67301616 1 4 CAPACITOR 67300718 1 5 OVERLOAD PROTECTOR 67301405 1 19 5 EXPLODED VIEW 6 SERVICE PARTS LIST CP05C10 N Non Service Parts 5 10 R en link 152302 6730430 Filter Mech R 238310 Escutcheon ee I PWB PCB Assy Display R 35230 6730306 Motor Assy Singe R 3525 67302021 Tube Assy Evaporator in Compressor mm Em RE Was 67050 I EET ru 749740 67304005 Upper Guide Cabinet NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE hittp biz LGservice com de 0900009999 9000000090 4 22 9999909090999 908009000 23 Use Factory Certified Parts rriedrich 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 CP05 Svc 05 06
3. Figure 8 Figure 9 2 2 3 Disconnect the unit from the power source Remove the front grille Refer to Section 2 1 1 Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 Remove the upper air guide Refer to Section 2 2 1 Remove the compressor turbo fan fan and shroud Refer to Section 2 2 2 Remove 2 screws that secure the motor to the motor mount See Figure 10 Remove the motor Re install by referring to the procedures above 2 2 4 AIR GUIDE Disconnect the unit from the power source Remove the front grille Refer to Section 2 1 1 Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 Remove the upper air guide Refer to Section 2 2 1 Remove the compressor turbo fan fan and shroud Refer to Section 2 2 2 Remove the motor Refer to Section 2 2 3 Remove 2 screws that secure the air guide to the base pan See Figure 11 Push the air guide backward and lift it upward See Figure 11 Re install by referring to the procedures above 2 3 ELECTRICAL PARTS 2 3 1 OVERLOAD PROTECTOR 1 0 0 Remove the front grille and cabinet Refer to Section 2 1 Remove the nut which fastens the terminal cover Remove the terminal cover Remove all the leads from the overload protector R
4. 3 Remove 2 lead wire terminals Re install the components by referring to the gt Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 Pull the control board forward and pull out it removal procedure above See Figure 17 Figure 14 Figure 15 Figure 16 Figure 17 2 3 6 POWER CORD Disconnect the unit from source of power Remove the front grille Refer to Section 2 1 1 Remove the cabinet Refer to Section 2 1 2 Remove a screw that secures control panel to base pan Refer to Section 2 1 3 Pulls the control board toward you Disconnect the 2 receptacles and remove the grounding screw Remove a screw securing the clip with cord to the control panel Pull the power cord Re install by referring to procedures above 2 4 REFRIGERANT CYCLE 2 4 1 CONDENSER 1 2 3 Remove 2 screws which fasten the condenser After discharging the refrigerant completely gt Remove the cabinet Refer to Section 2 1 2 Discharge the refrigerant by using a refrigerant recovery system Remove the air guide Refer to Section 2 2 1 unbraze the interconnecting tube at the condenser connections Remove the condenser Re install by referring to the procedures above Figure 18 Figure19 2 4 2 EVAPORATOR 1 Remove the cabinet 2 Discharge
5. rriedrich Room Air Conditioner Service and Parts Manual 115Volts 5 10 CP05 Svc 05 06 CONTENTS ee een 3 1 FEATURE Sn sn en nes ee nie a 3 1 2 SPECIFICATIONS ae a nem 3 423 LOCATIONS OF CONTROLS ae nee ee 4 TAL SAFETY PRECAUTIONS nsii osrin taste Strasser 4 1 5 INSULATION RESISTANCE bue cse d 4 2 DISASSEMBLY INSTRUCTIONS 5 2 1 MECHANICADPARIS A duced luca oou ec d 5 DAA FRONT GRILLE ne ooa CON edic ee 5 24 2 SABINE Tr d enti nes dis autc E M o MEN E 5 213 CONTROL BOARD Susan es nee cba cat 5 22 AIRCHANDLING PARTS seen 6 22 TAIR GUIDE UPPER anal 6 22 2 ORIFICE TURBO FAN AND FAN ee 6 223 MOTOR 7 2245 scis P EN 7 PARTS a nr 7 231 OVERLOAD PROTECTOR va ee ul 7 23 2 COMPRESSOR ya a a DE 8 trei ers Em 8 234 THERMOSTAT ee ee 8 23 ROTARY SWITCH LAUD ee ud Ac 8 230 POWER CORD u een ee ee 9 24 REFRIGERANT CYCLE nina in Seesen 9 Z4 1 CONDENSER une Me ee 9 24 2 EVAPORATOR ee 10 24 3 CAPILLARY TUBE Auen nannte an 10 3 TROUBLESHOOTING GUIDE usa sine a ea 12 VOUT SIDE DIMENSIONS ee ne ea ee 12 13 SS TROUBLESHOOTING GUIDE oe ei orta atte
6. 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 condenser connections 5 Remove the evaporator 6 Re install by referring to the procedures above 2 4 3 CAPILLARY TUBE 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 of the capillary tube 5 Remove the capillary tube 6 Re install by referring to the procedures above NOTES Replacement of the refrigeration cycle When replacing the refrigerating cycle be sure to discharge the refrigerant by using a refrigerant recovery system After discharging the unit completely remove the desired components and unbraze the pinch off tubes Solder service valves into the pinch off tube ports leaving the valves open Solder the pinch off tubes with service valves After completing the above procedures the valve must be removed Evacuate as follows 6 1 Connect the vacuum pump as illustrated in figure 21A Start the vacuum pump Slowly open manifold valves A and B with two full turns counter clockwise and leave the valves closed The vacuum pump is now pulling through valves A and B up to valve C by means of
7. OILS SUCTION LINE VAPOR INLET edu GCL LOW PRESSURE varon COOLED AIR ROOM AIR HEAT LOAD gt OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH TE MOTOR DISCHARGE gt LINE NOT HIGH PRESSURE gt COMPRESSOR VAPOR 77 LIQUID PRESSURE DROP LIQUID OUTLET LIQUID REFRIGERANT 17771 PRESSURE VAPOR CAPILLARY TUBE Lau REFRIGERANT Low PRESSURE VAPOR Figure 32 13 3 3 TROUBLESHOOTING GUIDE In general possible trouble is classified in two kinds 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 improper application Unit is running but cooling is ineffective Ineffective Cooling Check cold air Check outdoor coil Check heat load circulation for smooth heat exchanger and increase flow fan operation Clean condenser Dirty indoor coil Check for gas leakage heat exchanger Not on dedicated circuit Repair gas leak Malfunction of fan Replacement of unit if Check inside gas pressure the unit is beyond repair Clogging air filter Adjust refrigerant Obstruction at air outlet T charge Remove obstruction Malfunction of compressor Check for restriction in refri Replacement of geration circuit compressor Satisfactory operation Re
8. ONT GRILLE Figure 1 1 Pull the inlet grille forward 2 Remove the screw securing the Front Grille Fig 3 3 Push the grille up from the bottom and pull the top of the grille away from the case to lift the top tabs out of their slots Fig 4 4 Carefully position the grille bottom first and snap back into place 5 Reposition the screw that secures the front grille Figure 2 2 1 2 CABINET 1 Disconnect the unit from the power source 2 Remove the front grille Refer to section 2 1 1 3 Remove 9 screws that secure the cabinet to the base pan and condenser See Figure 3 4 Lift the cabinet from the unit 5 Re install by referring to the procedures above 2 1 3 CONTROL PANEL Figure 3 2 Remove the front grille Refer to Section 2 1 1 3 Remove the cabinet Refer to Section 2 1 2 4 Remove 1 screws that secure the control board to base pan and air guide See Figure 4 5 Pull the control panel toward yourself 1 NOTE Controls wires and are now accessible for servicing Discharge the capacitor before servicing See step 2 3 3 on page 8 for procedures Figure 4 the fan motor and compressor See Figure 5 7 Re install components by referring to procedures above Refer to wiring diagram on page 23 in this manual or inside cont
9. ch the low side gauge allow pressure to rise to 30 106 c Turn off valve B and allow the pressure to drop d Repeat steps B and C until the balance of the charge is in the system When the unit is operating correctly use the pinch off tool with the unit still running and the clamp on the pinch off tube Using a tube cut ter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos solder and solder the pinch off tube closed Turn off the unit allow setting for a while and then test the leak age of the pinch off connection 7 3 7 4 7 5 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 00 MANIFOLD GAUGE CONDENSER HIGH PRESSURE SIDE SEE INSETS BELOW COMPRESSOR EVAPORATOR LOW PRESSURE SIDE CAPILLARY TUBE LO CHARGING CYLINDER 2 Q B EXTERNAL VACUUM PUMP Figure 21A Pulling Vacuum Figure 21B Charging 11 2 4 4 ELECTRICAL DATA Line Cord Plug Use Wall Receptacle Power Supply Do not under any circumstances cut Use 15 AMP time or remove the grounding prong delay fuse circuit from the plug breaker Power supply cord with Standard 125V 3 wire grounding 3 prong grounding pl
10. emove the overload protector Re install the components by referring to the removal procedure above See Figure 12 and 13 Figure 10 Figure 11 Figure 12 Figure 13 2 3 2 COMPRESSOR 1 2 Remove the front grille and cabinet Refer to Section 2 1 Discharge the refrigerant by using a refrigerant recovery system Remove the overload protector Refer to Section 2 3 1 After discharging the unit completely unbrace the suction and discharge pipes at the compressor connections Remove 3 nuts which fasten the compressor Remove the compressor Re install by referring to the removal procedure above See Figure 14 2 3 3 CAPACITOR 1 2 3 Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 Discharge the capacitor by placing a 20 resistor across the capacitor terminals Remove the screw which fastens the capacitor clamp Remove all the leads of capacitor terminals Re install the components by referring to the removal procedure above See Figure 15 2 3 4 THERMISTOR 1 2 3 Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 Disconnect the thermistor terminals from main assembly Remove the thermistor Re install the components by referring to the removal procedure above See Figure 16 2 3 5 CONTROL BOARD 1 2
11. he room The temperature can be set within a range of 60 F to 86 F in increments of 1 F 2 SAVER The fan stops when the compressor stops cooling Approximately every 3 minutes the fan will turn on and sample the room air to determine if more cooling is needed 3 OPERATION MODE SELECTOR Everytime you push this button it will rotate between the COOL FAN and DRY modes 4 ON OFF TIMER ON When the air conditioner is off it can be to automatically come on in 1 to 12 hours from its previous setting Each touch will increase the timer by 1 hour OFF When the air conditioner is on it can be set to automatically turn off in 1 to 12 hours Each touch will increase the timer by 1 hour After the timer has been on for 30 minutes the temperature will automatically rise 2 F and after another 30 minutes it will automatically rise 2 F again The temperature will then stay the same until the timer goes OFF To cancel the timer press the TIMER pad until the display time disappears 5 POWER To turn the unit ON push the button To turn the unit OFF push the button again This button takes priority over any other buttons When you first turn it on the unit is on the High cool mode and the temp at 72 F 6 FAN SPEED Everytime you push this button it will rotate between the following fan speeds High F3 Low F1 Medium F2 High F3 2 DISASSEMBLY INSTRUCTIONS 2 1 MECHANICAL PARTS 2 1 1 FR
12. lace the terminal If the wires are discon nected refer to wiring diagram for identification and replace the wires Check the wire connections If not according to the wiring diagram correct the connections Thermistor Check the TEMP control If not at the lowest number set TEMP control to this setting Check the continuity of the thermistor Replace the control board if the circuit is open Capacitor discharge capacitor before Check the capacitor Replace if not within x 1096 of manufacturer s servicing rating replace if shorted open or damaged Compressor Check the compressor for open circuit or ground If open or grounded replace the compressor Overload Check the compressor overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest Compressor cycles on Voltage Check the voltage See the limits on the overload preceding page If voltage is not within these limits call an electrician Overload Check overload if externally mounted Replace if open If the compressor temperature is high remove the overload cool and retest 17 COMPLAINT CAUSE REMEDY Compressor cycles on overload 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 ca
13. manifold and the entire system 6 2 CAUTION If high vacuum equipment is used just crack valves A and B for a few minutes then open slowly with the two full turns counter clock 10 wise This will keep oil from foaming and being drawn into the vacuum pump 6 3 Operate the vacuum pump for 20 to 30 min utes until 600 micron vacuum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pressure would indicate a possible leak or moisture remaining in the system With valves A and B closed stop the vacuum pump Remove the hose from the vacuum pump and place it on the charging cylinder See figure 23B Open valve C Discharge the line at the manifold connection 6 5 The system is now ready for final charging Recharge as follows 7 1 Rotary compressor 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 through the access valve which is installed as the system is opened Connect the charging cylinder as shown in fig ure 21B With valve C open discharge the hose at the manifold connection Open valve A and allow the proper charge to enter the system Valve B is still closed If more charge is required the high side will not take it Close valve A With the unit running open valve B and add the balance of the charge a Do not add the liquid refrigerant to the low side b Wat
14. move restriction in with temperature refrigeration circuit difference of inlet amp outlet air 18 26 F 14 Fails to Start Check of circuit breaker and fuse Check voltage power source Check control switch setting Gas leakage of feeler bulb of thermostat Check control switch Fan fails to start Compressor fails to start Improper thermostat Drop of power voltage p setting Defect of compressor or Loose terminal capacitor connection Irregular motor Capacitor check amp Improper wiring resistance Q Irregular motor insulation Q Replacement Replacement of fan motor Regular but fails to start Replacement of compressor Improper wiring Defect of fan motor or capacitor Irregular motor resistance Irregular motor insulation Replacement of compressor Motor damaged 15 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 electronic control board If none check power supply cord Replace cord if circuit is open Wire disconnected or Connect wire Refer to wiring diagram for connection loose terminal identification Repair or replace loose terminal Capacitor Discharge Tes
15. refully with a vacuum cleaner do not damage fins or brush Clean the interior 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 fins or replace the coil Capacitor Test the capacitor Wiring Check the terminals If loose repair or replace Refrigeration system Check the system for a restriction Insufficient cooling Air filter If restricted clean or replace Unit undersized Determine if the unit is properly sized for the area to be cooled Excessive noise Blower or fan Check the set screw or clamp If loose or miss ing correct If the blower or fan is hitting scroll or barrier rearrange the air handling parts Copper tubing Remove the cabinet and carefully rearrange the tubing not to contact the cabinet compressor shroud and barrier 18 4 CIRCUIT DIAGRAM POWER INPUT WH BL _BK BR Ribbed U Plain GN YL GN THERMISTOR in BL GN CAPACITOR a DISPLAY P W B ASM 5 MAIN PW B ASM Q OMP 2 ZNR _ ON SYNC CN DISP TRANS FORMER 3854A20022K WIRING DIAGRAM v FUSE 250V T2A 115V T2A
16. rol board Figure 5 2 2 HANDLING PARTS 2 2 1 AIR GUIDE UPPER Disconnect the unit from the power source Remove the front grille Refer to Section 2 1 1 Remove the cabinet Refer to Section 2 1 2 Remove the control panel Refer to Section 2 1 3 5 Remove 2 screws that secure the upper air guide to air guide lower See Figure 6 6 Lift upper air guide upward 7 Re install by referring to the procedures above RON 2 2 2 ORIFICE TURBO FAN AND FAN 1 Disconnect the unit from the power source Remove the front grille Refer to Section 2 1 1 Remove the cabinet Refer to Section 2 1 2 Remove the control board Refer to Section 2 1 3 5 Remove the air guide upper Refer to Section 2 2 1 6 Remove 2 screws that secure the base pan to condenser See Figure 7 7 Remove screw that secures the shroud to channel of condenser 8 Press the snap area of shroud with your thumbs This allows you to remove it from the condenser 9 Lift the compressor upward with the evaporator and condenser See Figure 7 Remove the orfice by pushing the snap area of the air guide blower See Figure 8 Remove the clamp springs which are clamped to the shaft of fan and turbo fan by hand plier See Figure 9 Pull the fan and turbo fan outward Remove the shroud Re install by referring to the procedures above 2 3 4 12 13 14 Figure 6 Figure 7
17. t 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 or blower wheel hitting scroll Re align assembly Units using slinger ring condenser fans must have 1 4 inch clearance to the base If necessary shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Fan motor runs Revolves on overload Check voltage See limits on this page If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor 16 COMPLAINT CAUSE REMEDY Fan motor noise Fan blade If cracked out of balance or partially missing replace it Blower wheel If cracked out of balance or partially missing replace it Loose set screw Tighten it Worn bearings If knocking sounds continue when running replace the motor Ifthe motor hums or noise appears to be internal while running replace motor Compressor will not run fan motor runs Voltage Check voltage See the limits on the preceding page If not within limits call an electrician Wiring Check the wire connections if loose repair or rep
18. ug receptacle rated 15A 125V AC USE OF EXTENSION CORDS Because of potential safety hazards we strongly discourage the use of an extension cord However if you wish to use an extension cord use CSA certified UL listed 3 wire grounding extension rated 15A 125V 3 TROUBLESHOOTING GUIDE 3 1 OUTSIDE DIMENSIONS unit mm in 370 14 9 16 42 1 21 32 472 18 9 16 42 1 21 32 120 4 3 4 27 5 1 3 32 346 13 5 8 312 12 1 4 2 1225 0 8 3 32 Ux n 55 6 3 32 __ 370 14 9 16 m 312 12 1 4 42 3 2 PIPING SYSTEM CONDENSER COILS n FAN CAPILLARY MOTOR TUBE TURBO FAN EVAPORATOR COILS Following is a brief description of the important components and their function in what is called the refrigeration system Reference should be made to Figure 32 to follow the refrigerating cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER C
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