Friedrich CP05A10 User's Manual
Contents
1. Figure 8 Figure 9 2 2 3 MOTOR 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 Remove the air guide upper 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 See Figure 10 Remove the motor Re install by referring to the procedures above 2 2 4 AIR GUIDE RON 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 Remove the air guide upper 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 W 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 th2. Figure 3 Figure 4 Figure 5 2 2 AIR 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 board Refer to Section 2 1 3 5 Remove 2 screws that secure the air guide upper to air guide lower See Figure 6 6 Lift air guide upper 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 boss 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
3. 6 SERVICE PARTS LIST e CP05A10 CPO6A10 R Service Parts N Non Service Parts CP05A10 Loc No 137215 147581 147582 1 147582 2 149980 67303100 SHROUD 298310 67500115 7 ESCUTCHEON 263230 67307806 THERMISTOR ASSEMBLY 264110 6730006 POWER CORD ASSEMBLY 352380 67302726 AIRGUIDE 952390 67302727 AIR GUIDE ASSEMBLY 354210 67302422 EVAPORATOR ASSEMBLY FIRST 959012 67302602 550140 67301900 ISOLATORCOMP 552111 67302120 TUBEASSYCAPILLARY 554030 67303320 CONDENSER ASSEMBLY FIRST 554160 673066 1 COMPRESSORSET 559011 _ 67302613 FANASSEMBLYAXIAL 21 CP06A10 Loc No 137215 147581 147582 1 147582 2 149980 67303100 SHROUD 238310 67500115 7 ESCUCHON 263230 67307806 THERMISTOR ASSEMBLY 264110 67300016 POWER CORD ASSEMBLY 352380 67302720 ARRGUDE 352390 67302727 AIR GUIDE ASSEMBLY 354210 _ 67302422 EVAPORATOR ASSEMBLYFIRST 359012 673020032 7 550140 67301900 ISOLATORCOMP 552111 67302117 TUBE ASSEMBLY CAPILLARY 554030 67303320 CONDENSER ASSEMBLY FIRST 554160 67301616 1 COMPRESSORSET 559011 67302613 FANASSEMBLYAXAL 22 MEMO 9999909090999 908009000 23 Use Factory Certified Parts rriedrich FRIEDRICH AIR CONDITIONING CO Visit ou
4. 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 and replace the knobs 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 BOARD 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 1 screws that secure the control board to base pan and air guide See Figure 4 5 Pull the control board toward yourself NOTE Controls wires and capacitor are now accessible for servicing Discharge the capacitor before servicing See step 2 3 3 on page 8 for procedures 6 Disconnect one housing terminal and 3 wires for 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 control board Figure 1 Figure 2
5. Remove the cabinet Discharge the refrigerant by using a refrigerant recovery system Remove the air guide upper Refer to Section 2 2 1 After discharging the refrigerant completely unbraze the interconnecting tube at the proper coil connections Remove the evaporator Re install by referring to the procedures above 2 4 3 CAPILLARY TUBE 1 3 4 5 6 Remove the cabinet 2 Discharge the refrigerant by using a refrigerant recovery system Remove the air guide upper Refer to Section 2 2 1 After discharging the refrigerant completely unbraze the interconnecting tube of the capillary tube Remove the capillary tube Re install by referring to the procedures above NOTES Replacement of the refrigeration cycle When replacing the refrigeration 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 closed and left in place on the system for any subsequent procedures 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
6. rriedrich Room Air Conditioner Service and Parts Manual 115Volts CPO5A10 6 10 5 06 05 CONTENTS IXPREPAGE ce etu Lu a 3 TETIEEATURBES 3 ict eto ae ete be tat at eoe e Lf e 3 1T 2 SPEGIEIGATIONS nl 3 1 3 LOCATIONS OF CONTROES tnc aee Re li 4 1 4 SAFETY PREGCAUTIONS icto El 4 1 5 INSULATION RESISTANCE TEST e n sette sensns s aste 4 2 DISASSEMBLY INSTRUCTIONS 5 2 MEGHANIGALPAPBUDS aes Aenea p augue 5 2121 FRONGRILKE dis 5 SABINE Tees a 5 24 9 CONTROL BOARD bes e fte tar e iei a eor 5 2 2 AIR HANDEINQ PARTS 6 22 WAIR GUIDE UPPER eit Cede t d ce tede iia 6 2 2 2 ORIFICE FAN ae eek sites ci oe ee eset leben kin 6 2 2 9 MOTOR p ete E eee ate 7 2 2 4 AIR GUIDE vs iiec pe ideo Eile 7 2 S EEEGTRIOCAL PARTS tice dai nd e it dete aet cet em ae 7 2 3 1 OVEREOAD PROTECTOR 7 2792 COMPRE SSOR n Lx M o cu 8 233 GAPAGITIOR seh A odere 8 2 34 THERMONSTAT
7. 1 3 32 346 13 5 8 312 12 1 4 az 22 5 0 8 3 32 155 6 3 32 370 14 9 16 312 12 1 4 42 3 2 PIPING SYSTEM CONDENSER COILS n FAN CAPILLARY MOTOR TUBE TURBO FAN EVAPORATOR cs 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 22 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS 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 VZ HIGH PRESSURE VAPOR CAPILLARY TUBE Lau REFRIGERANT Low PRESSURE VAPOR
8. capacitor before Check the capacitor Replace if not within 10 of manufacturers 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 carefully 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 C
9. and leave the valves closed The vacuum pump is now pulling through valves A and B up to valve C by means of 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 21B 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 ope
10. 5 CONTROL PANEL 1 2 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 board Refer to Section 2 1 3 Pull the control panel forward and pull out it removal procedure above See Figure 17 Figure 14 Figure 15 Figure 16 Figure 17 2 3 6 POWER CORD RON 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 board 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 board 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 CONDENSER 1 2 3
11. Figure 22 13 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 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 gas leakage heat exchanger Not on separate circuit Repair gas leak Malfunction of fan Replacement of unit if Check inside gas pressure the unit is beyond repair Clogging of air filter Adjust refrigerant Obstruction at air outlet T charge Remove obstruction Malfunction of compressor Check clogging in refrigera Replacement of tion circuit compressor Satisfactory operation Repair clogging in with temperature refrigeration circuit difference of inlet amp outlet air 55 59 F 13 15 C 14 Fails to Start Check circuit breaker and fuse Check power source Check control switch setting Gas leakage of capillary bulb on thermostat Check control switch Compressor fails to start Improper thermostat Drop of power voltage lt setting Defect of compressor Loose terminal c
12. V Hz V 60HZ INPUT W OPERATING CURRENT REFRIGERANT CONTROL CAPILLARY TUBE REFRIGERANT CHARGE R 22 330g 11 6 oz 840g 12 9 oz INSIDE FAN TURBO FAN OUTSIDE FAN PROPELLER FAN WITH SLINGER RING AIR DISCHARGE 2 WAY RIGHT AND LEFT CHASSIS TOP DOWN OVERLOAD PROTECTOR FOR COMPRESSOR PROTECTOR INTERNAL PROTECTOR FOR FAN MOTOR TEMPERATURE CONTROL THERMISTOR FAN MOTOR 6 POLES 21W 6 POLES 27W 1 3 LOCATIONS OF CONTROLS 1 TEMPERATURE SETTING These buttons control the temperature of the room The temperature can be set within a range of 60 F to 86 F in increments of 1 F 2 MONEY SAVER The fan stops when the compressor stops cooling Approximately every 3 minutes the fan will tum on and sample the room air to determine if more cooling is needed 8 OPERATION MODE SELECTOR aver Off Dry Fan Only Os Cool Everytime you push this button it will rotate between the COOL FAN and DRY modes 4 Timer imer e a ON OFF TIMER ON When the air conditioner is off it be set to automatically come on in 1 to 12 hours from its previous setting Each touch will increase the timer by 1 O 3 hour Speed 1 5 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
13. apacitor connection Irregular motor Capacitor check gt Improper wiring resistance Q Irregular motor insulation Q Replacement Replacement of fan motor Regular but fails to start Replacement of compressor Fan only fails to start Improper wiring Defect of fan motor capacitor Irregular motor resistance Q Irregular motor insulation Q Locking of piston metal Replacement of compressor Motor damaged 15 ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 115V 1095 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 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 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 or blower wheel hitting scroll Re align assembly Units using slinger ring condenser fans must have 0 22 0 25 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 ro
14. e overload protector Remove 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 unbraze 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 board 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 board Refer to Section 2 1 3 Disconnect the thermistor terminals from main P W B assembly Remove the thermistor Re install the components by referring to the removal procedure above See Figure 16 2 3
15. heck 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 MODEL CP05A10 CP06A10 POWER INPUT WH BL BK BR Ribbed Plain GN YL GN is THERMISTOR te BL MAIN PW B ASM Q OMP ru 2 E OP X 4 ZNR er TRANS FORMER FUSE 250V T2A 115V T2A ON SYNC CN DISP RvSYNC DISPLAY P W B ASM 3854A20022K WIRING DIAGRAM S Service Parts N Non Service Parts i DESCRIPTION MUN re 1 MOTOR ASSY 1 S 2 CAPACITOR 1 S 3 COMPRESSOR 1 S 4 OVERLOAD PROTECTOR 1 S 5 DC PCB ASSEMBLY 1 S 6 AC PCB ASSEMBLY 1 S 7 THERMISTOR 1 S 19 5 EXPLODED VIEW
16. iced tet aae erstarrt ede da 8 2 3 5 SWIG Alix 5 iicet Up olan uei n Me eve ep ut eae 8 2 3 6 POWER CORD ur Haare e neu a s sai 9 2 4 REFRIGERANT GY CLE arte Hear HERR ete 9 2 4 1 CONDENSER cioe End 9 2 4 2 EVAPORATOR ia e d etu E e Cd Bo P idv etu i dees 10 24 3 GAPIEEARY TUBE Di Ike 10 3 TROUBLESHOOTING GUIDE 12 3 1 OUTSIDE DIMENSIONS wee oe eine He nee 12 3 2 PIPINGSMSTEM S eeu teet d den 13 3 3 TROUBLESHOOTING GUIDE onia nennen enne 14 1 CIRCUIT DIAGRAM cene uten es aep 19 5 EXPLODED VIEW occi nee 20 6 SERVICE PARIS UST au eec mace emn 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 POWERFUL AND INCREDIBLE COOLING TOP DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE e BUILT IN ADJUSTABLE THERMOSTAT WASHABLE ONE TOUCH FILTER COMPACT SIZE 1 2 SPECIFICATIONS MODELS CP05A10 CP06A10 ITEMS COOLING CAPACITY BTU h 5 100 5 600 POWER SUPPLY Phase
17. n valve B and add the balance of the charge a Do not add the liquid refrigerant to the low side b Watch the low side gauge allow pressure to rise to 30 Ibs 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 Use sil fos solder and solder the pinch off tube closed Turn off the unit allow unit to sit 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 R BELOW COMPRESSOR EVAPORATOR LOW PRESSURE SIDE CAPILLARY TUBE Figure 20 LO CHARGING CYLINDER 940 EXTERNAL VACUUM PUMP Figure 21A Pulling Vacuum Figure 21B Charging 11 3 TROUBLESHOOTING GUIDE 3 1 OUTSIDE DIMENSIONS unit mm in 42 1 21 32 472 18 9 16 370 14 9 16 42 1 21 82 120 4 3 4 27 5
18. r 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
19. tate 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 Fan motor noise 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 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 replace 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 and restart the unit Check the continuity of the thermistor Replace the thermistor if the circuit is open Capacitor discharge
20. 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 FAN SPEED Everytime you push this button it will rotate between the following fan speeds High F3 Low F1 Medium F2 High F3 Friedrich 1 4 SAFETY PRECAUTIONS 1 5 INSULATION RESISTANCE TEST 1 When servicing turn the unit Off and unplug the 1 Unplug the power cord and connect a jumper between 2 pins power cord black and white 2 Observe the original lead dress 2 The grounding conductor green or green and yellow is to be If a short circuit is found replace all parts which have open been overheated or damaged by the short circuit 3 Measure the resistance value with an ohm meter between the 3 After servicing make an insulation resistance test to jumpered lead and each exposed metallic part on the equip prevent the customer from being exposed to shock ment at each working status hazards 4 The value should be over 1 MO 2 DISASSEMBLY INSTRUCTIONS 2 1 MECHANICAL PARTS 2 1 1 FRONT GRILLE 1 Pull the inlet grille forward
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