Friedrich CP10F10 User's Manual
Contents
1. EHHH a a ee a a ee aN 0 NY Figure 3 Service Manual 9 Disassembly 1 Remove the front grille Remove the cabinet Remove the control box Remove the 3 screws which fasten the brace Remove the brace Remove the 2 screws which fasten the evaporator Move the evaporator forward and pulling it upward OQ WD 10 11 12 13 14 gt AIR GUIDE AND BLOWER slightly See Figure 4 Move the evaporator to the left carefully Pull out the hook of orifice by pushing the tabs and remove it See Figure 5 Remove the clamp with a hand plier which secures the blower Remove the blower Remove the 4 screws which fasten the air guide from the barrier Move the air guide backward pulling out from the base pan Re install the components by referring to the removal procedure above FAN AND SHROUD Remove the cabinet Remove the brace Remove the 3 screws which fasten the condenser Move the condenser to the left carefully Remove the clamp which secures the fan Remove the fan and then pull out the shroud See Figure 6 Re install by referring to the removal procedure 10 Room Air Conditioner nC x Figure 5 Figure 6 3 MOTOR 72. saad 17 TOUBISSHOOUIMG conet edt Dude sd npe de 18 idees e IT 26 Replacement Parts Elster eter ea 27 2 Room Air Conditioner Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instructions will cause harm or damage The seriousness is classified by the following indications A WARNING This symbol indicates the possibility of death or serious injury CAUTION This symbol indicates the possibility of injury or damage to property only Meanings of symbols used in this manual are as shown below 9 Be sure not to do uL Be sure to follow the instruction A WARNING Always install the expansion panel s Do not place the power cord near a heater Improper assembly or installation may cause It may cause fire and electric shock incorrect operation including injury fire and electric shock hazards Do not use the power cord near flammable Do not disassemble or modify products gas or combustibles such as gasoline benzene thinner etc It may cause explosion or fire e It may cause failure and electric shock Service Manual 3 Safety Precautions Plug in
3. 8 Re install the components by referring to the 1 Remove the cabinet 2 Remove the evaporator 3 Remove the orifice 4 5 6 Remove the blower Remove the fan Remove the control box cover and housing of the motor in the control box Remove the 2 screws which fasten the motor from the mount motor See Figure 7 Remove the motor removal procedure above See Figure 7 1 WN OVERLOAD PROTECTOR Remove the cabinet Remove the nut which fastens the terminal cover Remove the terminal cover See Figure 8 Remove all the leads from the overload protector Remove the overload protector Re install the component by referring to the removal procedure above 2 COMPRESSOR 1 Remove the cabinet 2 Discharge the refrigerant system using a Freon Recovery System If there is no valve to attach the recovery system install one such as a WATCO 1 before venting the Freon Leave the valve in place after servicing the system 3 Remove the overload protector 4 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections 5 Remove the 3 nuts and the 3 washers which fasten the compressor 6 Remove the compressor See Figure 9 7 Re install the components by referring to the removal procedure above Disassembly VV 2222
4. 7 FRIEDRICH Room Air Conditioner Service and Parts Manual 115Volts e CP10F10 12 10 CP10 CP12 Svc Parts 2010 05 10 Air Conditioner Service Manual TABLE OF CONTENTS Safety acera 3 DIMENSIONS debates Se Viera r Q kasta aysaq 6 Outside Dimensions 6 Pr d ct MET I 7 How to operate your Friedrich CP nennen 4 8 Controls and Remote Control Operations sss nnne nnne 8 Disassem ND BY ete 9 Mechanical Parts den p aaa e eee eet de aa T e 9 PariS es nonae adt sett idet Qaway MU m DU pM 10 Electrical Parts eodd ete Sera ce ed ttu lut teste ek mete aes 11 Refrigerating CyCl e 12 Schematic Diagram Nast lestis feet eti OPERI M M LI ILI I ID ELLA IPIE 15 Wiring RP p Im 19 Electronic Control Devica ee a tede emp tene 16 Troubleshooting Guide 17 PIPING
5. Figure 7 lt gt D D 45 D Figure 8 D D D D D D 45 53 Figure 9 Service Manual 11 Disassembly 3 CAPACITOR MODEL TOUCH amp REMOTE CONTROL MODEL 1 Remove the control box 2 Remove the screw which fasten control panel from control box 3 Remove the screw which located in the front Open the bottom side of control box 5 Remove the screw and the clamp which fastens the capacitor 6 Disconnect all the leads of capacitor terminals 7 Re install the components by referring to the removal procedure above See Figure 10 Figure 10 4 POWER CORD 1 Remove the control box 2 Open 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 11 6 Remove the power cord 7 Re install the component by referring to the above removal procedure above Use only one ground marked hole gt for ground connection 8 If the supply cord of this appliance is damaged it Figure 11 must be replaced by the special cord The special cord means the cord which has the same specification marked on the supply cord attached at the unit Refrigerating Cycle CAUTION Discharge the refrigerant system using a Freon Recovery System If there is no valve gt to attach the recovery system install one such as WATCO 1 before venting the Freon Leave the valve in place after servicing
6. Guide ROOM 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 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 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 23 Room Air Conditioner Troubleshooting Guide 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
7. in the cooling cycle LIQUID PRESSURE DROP CAPILLARY TUBE Figure 15 CYCLE OF REFRIGERATION EVAPORATOR COILS CONDENSER COILS VAPOR INLET COMPLETE LIQUID SOOL TOW PRESS RE VAPOR HOT BOIL OFF POINT DISCHARGED COOLED Se gt AIR AIR aaa I TAILLE LT lt ROOM AIR HEAT LOAD LA lt 222222 OUTSIDE COOLING gt AIR FOR REFRIGERANT PASS THROUGH 4 COMPRESSOR oa E LIQUID OUTLET 222 HIGH PRESSURE VAPOR REFRIGERANT PSS LOW PRESSURE VAPOR 54 17 Room Air Conditioner Troubleshooting Guide In general possible trouble is classified in two kinds The one is called Starting Failure which is caused from an electrical defect and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application Ineffective Cooling Y Unit runs but poor cooling Check cold air Check heat load increase Clean condenser Check outdoor coil circulation for smooth flow heat exchanger and fan operation Dirty indoor coil Check gas leakage heat exchanger Not on separate circuit Repair gas leak Malfunction of fan Check inside gas Rep
8. the power plug Do not operate or stop the Do not damage or use an properly unit by inserting or pulling unspecified power cord out the power plug Otherwise it will cause e It will cause electric shock or It will cause electric shock or electric shock or fire fire fire Nest CA umb ADS N LY 4 x wb Do not modify power cord Use the air conditioner on a Always plug into a length single outlet circuit see page 7 grounded outlet Do not share the outlet with other appliances e It will cause electric shock or It will cause electric shock or No grounding may cause fire fire electric shock Ventilate before operating air not use the socket if itis not operate with wet conditionerwhen gas goes loose or damaged hands or in damp out environment lt may cause explosion fire e t may cause fire and electric It will cause electric shock and burn shock 4 Room Air Conditioner Safety Precautions If water enters the product turn off the the Do not clean the air conditioner with water power switch of the main body of appliance Contact service center after taking the power plug out from the socket It will cause electric shock or failure of Water may enter the unit and degrade the machine insulation It may cause an electric shock CAUTION Never touch the metal parts of the unit Do not block the inlet or outlet when removing the filter They are sharp and
9. the system 1 CONDENSER 1 Remove the cabinet 2 Remove the 3 screws which fasten the brace gt 3 Remove the 3 screws which fasten the condenser A and shroud lt 4 After discharging the refrigerant completely unbraze the interconnecting tube at the condenser L connections r 5 Remove the condenser carefully 6 Re install the component by referring to notes See Figure 12 Figure 12 12 Room Air Conditioner Disassembly 2 EVAPORATOR Remove the cabinet Remove the 2 screws which fasten the evaporator Move the evaporator sideways carefully After discharging the refrigerant completely unbraze the interconnecting tube at the evaporator connections 5 Remove the evaporator carefully 6 Re install the component by referring to notes See Figure 1 3 CAPILLARY TUBE 1 Remove the cabinet 2 After discharging the refrigerant completely unbraze the interconnecting tube at the capillary tube 3 Remove the capillary tube 4 Re install the component by referring to notes WD Replacement of the refrigeration cycle 1 When replacing the refrigeration cycle be sure to Discharge the refrigerant system using a Freon recovery System If there is no valve to attach the recovery system install one such as a WATCO A 1 before venting the Leave the valve in place after servicing the system 2 After di
10. 6313 67306313 749740 Guide 67304009 67304009 268711 1 PCB Assembly Display 67307623 67307623 268711 2 PCB Assembly Main 67307622 67307625 WOCZZ Capacitor Film Box 67300709 67300728 W48602 Clamp Spring 67302500 67302500 27 Room Air Conditioner Use Factory Certified Parts 2 FRIEDRICH FRIEDRICH AIR CONDITIONING CO Visit our web site at www friedrich com Post Office Box 1540 4200 Pan Am Expressway San Antonio Texas 78295 1540 210 357 4400 FAX 210 357 4490 CP10 CP12 Svc Parts 2010 05 10
11. 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 Rotary Check for continuity refer to the wiring diagram for terminal identification Replace the switch if the circuit is open Capacitor discharge capacitor before Check the capacitor Replace if not within 10 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 Service Manua
12. STACKS FAN INDOOR TURBO FAN FAN OUTDOOR PROPELLER TYPE FAN WITH SLINGER RING FAN SPEEDS FAN COOLING 3 3 FAN MOTOR 6 POLES OPERATION CONTROL REMOTE CONTROLLER ROOM TEMP CONTROL THERMISTOR AIR DIRECTION CONTROL HORIZONTAL LOUVER UP amp DOWN VERTICAL LOUVER RIGHT amp LEFT CONSTRUCTION SLIDE IN OUT CHASSIS COMPRESSOR OVERLOAD PROTECTOR PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUNDING POWER CORD ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER OUTSIDE DIMENSION inch 235 8 1431 32 225 16 W x D mm 380 x 600 x 555 DB Dry Bulb WB Wet Bulb a oso DESIGNED FOR COOLING ONLY POWERFUL AND INCREDIBLE COOLING TOP DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE BUILT IN ADJUSTABLE THERMOSTAT WASHABLE ONE TOUCH FILTER COMPACT SIZE Service Manual 7 How to operate your Friedrich CP Timer Mode On Off Fan Sai Cook E Dy Money Saver m sf Y 4 as 5 lt 4 otis Control and Remote Control Operations 1 POWER 5 ON OFF TIMER Operation begins when this button is pressed the unit is off use Timer to set number of and stops when you press the button again hours before unit starts 2 TEMPERATURE CON TROL Push Timer button to advance setting from 1hr The thermostat monitors room temperature SIRE 2hrs max
13. alve AUGE CONDENSER COMPOUND G NS HIGH PRESSURE SIDE MANIFOLD GAUGE B CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR LOW PRESSURE SIDE COMPRESSOR EXTERNAL VACUUM PUMP CHARGING CYLINDER Figure 14A Pulling Vacuum Figure 14B Charging Service Manual 14 Circuit Diagram MODEL TOUCH amp REMOTE CONTROL TYPE MODEL POWER INPUT WH BL N BK BR Ribbed Y Plain GN YL GN THERMISTOR MEZ62420717 MAINP W BASM BK TRANS BK SMPS USE 250V T3 15A RY SYNC DISPLAYP W BASM SYNC WH 8 MOTOR WIRING DIAGRAM LOCATION NO DESCRIPTION QTY PER SET Schematic Diagram POWER CORD ASSEMBLY 1 FAN MOTOR 1 COMPRESSOR DISPLAY P W B ASSEMBLY MAIN P W B ASSEMBLY THERMISTOR CAPACITOR CO NI O Oa OO N gt OWERLOAD PROTECTOR Service Manual 15 Schematic Diagram C ron Elect tBABD38 os at os ASE 001 elbe m 44 2 oroo ao azoo 2 aio 9510
14. arge 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 through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in figure 33B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow the proper charge to enter the system Valve B is still closed 4 If more charge is required the high side will not take it Close valve A 5 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 Watch the Low side gauge allow pressure to rise to 39 Ibs c Turn off valve B and allow pressure to drop d Repeat steps b and c until the balance of the charge is in the system 6 When satisfied the unit is operating correctly use the pinch off tool with the unit still running and clamp on to the pinch off tube Using a tube cutter cut the pinch off tube about 2 inches from the pinch off tool Use sil fos braze and braze pinch off tube closed Turn off the unit allow it to set for a while and then test the leakage of the pinch off connection Disassembly 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 v
15. dSIG NO ES Sr s vi vio 908 dNCO AH 22 2187 on 2 quor asoa H3MOdNIVW TED wroozNT bod p 9 8 51001 wea LOO Ee cs mm 100 8 6 1 JuVv Lsau 01 150 SNIMS V 1090 201 mo oLbvdvo 7009 O16iq Or a800 ams B s B Te Jer r e es ze ss se e MT NV OLNY 4900 ONAS AH 3 038 4 53 155 osre 10255 00095 ep pueos pusi OS Vos X Sinon 7 ong vms T sus T ins WOO MT MT dn dna z 5 E 1 g or n lo aTe Te Te Te Ta Te Te v 2 o xL 5 OS po 4204 HL 3dld not E veo 79 seus vioo Z0 052MNS AL ND HL NOOH 75 16 Room Air Conditioner Troubleshooting Guide E Troubleshooting Guide CONDENSER COIL FAN MOTOR CAPILLARY TUBE COMPRESSOR BLOWER EVAPORATOR COIL Figure 15 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
16. ection of NO RY COMP all right pes Check the RY COMP Connect LEAD Wire to RY COMP again Possible Trouble 4 Fan does not operate Is the voltage NO 1 or 4 of ICO1M DC 5V NO gt Exchange ICO1M Is the voltage NO 13 or 16 of ICO1M OV NO gt Exchange ICO1M Check the RY Hi or RY Lo Check the wiring diagram 21 Hoom Air Conditioner Troubleshooting Guide Possible Trouble 5 Romote controller does not operate Is the voltage of Battery about over 2 3V ves Is the voltage No 16 of CN DISP1 on Main P W B Assy DC 5V Is the connection of CN DISP1 all right Exchange Receiver Ass y NO Exchange the battery NO Check the P W B pattern NO Connect connector to CN DISP1 exactly Possible Trouble 6 It displays abnormally on Display P W B Ass y Is the IC01G all right NO Is the connection of CN DISP1 all right yes Does the Q01G Q02G Q03G Q04G operate normally on main P W B Ass y Exchange the display P W B Ass NO Exchange 016 NO Connect connector to CN DISP1 exactly NO Y Exchange Q01G Q02G Q03G Q04G Service Manual 22 Troubleshooting
17. im m to maintain the desired temperature The thermostat can be set between OFF You will usually use shut off time while you sleep 60 F 86 F 16 C 30 C If unit is running use Timer to set number of hours until The unit takes an average of 30 minutes to shut off adjust the room temperature by 1 F For your sleeping comfort once Time is set the 3 OPERATION MODE SELECTOR temperature setting will rise 2 F after 30min and once Select cooling mode to cool the room agaain after 30min Select Money Saver mode for energy Push Timer button to advance setting from 1hr saving operation 2hrs 12hrs maximum 2 mode for basic ventilating fan 6 AUTO SWING Select dry mode for dry operation This button can automatically control the air flow 4 FAN SPEED SELECTOR direction For increased power while cooling select a 7 REMOTE CONTROL SENSOR higher fan speed 3 speeds High Low Med Inserting the Remote Control Batteries 1 Push out the cover on the back NOTE Do not use rechargeable batteries Make sure that of the remote control with your both batteries are new thumb 227 order to prevent discharge remove the batteries from 2 Pay attention to polarity and the remote control if the air conditioner is not going to be insert two new AAA 1 5V used for an extended period of time batteries Keep the remote control away from extremely hot or 3 Reattach the cover humid places To mainta
18. in optimal operation of the remote control the remote sensor should not be exposed to direct sunlight Service Manual 8 Disassembly m Disassembly Before the following disassembly POWER SWITCH set to OFF and disconnect the power cord 1 FRONT GRILLE 1 Open the Inlet grille upward or downward 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 removal procedure above See Figure 1 Figure 1 2 CABINET 1 After disassembling the FRONT GRILLE remove the 2 screws which fasten the cabinet at both sides 2 Remove the 2 screws which fasten the cabinet at back 3 Pull the base pan forward See Figure 2 4 Remove the cabinet 5 Re install the component by referring to the removal procedure above Figure 2 3 CONTROL BOX 1 Disconnect the unit from the power source 2 Remove the front grille 3 Remove the cabinet 4 Remove the screw which fastens the control box cover 5 Remove the housing which connects motor wire in the control box 6 Remove the 3 leads from the compressor 7 Discharge the capacitor by placing a 20 000 ohmresistor across the capacitor terminals 8 Remove the 2 screws which fasten the control box See Figure 19 9 Pull the control box forward completely 10 Re install the components by referring to the removal procedure above See Figure 3
19. l 24 Troubleshooting Guide COMPLAINT CAUSE REMEDY 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 Compressor cycles on Fan motor If not running determine the cause Replace if overload required Condenser air flow Remove the cabinet inspect the interior surface restriction 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 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 Rem
20. lacement of unit if pressure Clogging of air filter the unit is beyond repair Adjust refrigerant Obstruction at air outlet charge Remove obstruction Malfunction of compressor Check clogging in refrigera Replacement of tion circuit compressor Satisfactory operation with temperature difference of inlet amp outlet air 44 50 F 7 10 C Repair clogging in refrigeration circuit Service Manual 18 Troubleshooting Guide Y Y Check of power source Check of circuit breaker and fuse Check of control panel Check control panel setting Y Fan only fails to start Improper wiring Defect of fan motor capacitor Compressor fails only to start Improper thermistor Drop of power voltage lt setting Defect of compressor Loose terminal capacitor connection Irregular motor Capacitor check 4 Improper wiring resistance Q Irregular motor insulation Q Replacement of fan motor Regular but fails to start Replacement of compressor Replacement Irregular motor resistance Q Irregular motor insulation Q Locking of piston metal Replacement of compressor Motor damaged 19 Room Air Conditioner MODEL BG8000ER WG8000RY4 WG1000RY4 ELECTRIC PARTS TROUBLESHOOTING GUIDE Possible Trouble 1 unit does not operate NO T
21. may cause injury It may cause failure of appliance or performance deteriorate Ensure that the outer caseis not damaged Be cautious not to touch the sharp edges by age orwear when installing Leaving it damaged couldresult in the air e It may cause injury conditioner falling out of the window creating a safety hazard Service Manual 5 Dimensions Dimensions A This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the A air conditioner This symbol indicates special notes 525 20 he 470 18 7 2 _ 353 13 7 8 6 Room Air Conditioner Il Product Specifications Specfications MODELS ITEMS CP10F10 CP12F10 POWER SUPPLY 10 115 60Hz COOLING CAPACITY Btu h 10 000 12 000 INPUT W 920 1 110 RUNNING CURRENT A 8 5 10 2 BTU W h E E R 10 8 OPERATING INDOOR F 80 DB 67 WB CONDITION OUTDOOR F 95 DB 75 WB REFRIGERANT R410 CHARGE 5309 18 707 5409 19 007 EVAPORATOR 19 52 2ROW 13STACKS CONDENSER 05 0 ROW 18
22. ove the cabinet and carefully rearrange the tubing not to contact the cabinet compressor shroud and barrier 25 Hoom Air Conditioner Exploded View Exploded View Replacement Parts st LocNo DESCRIPTION CP10F10 CP12F10 130410 Base Assembly Single 67305518 67305518 130910 Cabinet Assembly Single 67303716 67303716 135303 Grille Inlet 67306112 67306112 135312 Grille Assembly Front Indoor 67306019 67306019 135500 Cover 67304701 67304701 146812 Motor AC 67300902 67300902 147581 Louver Horizontal 67306209 67306209 147582 Louver Vertical 67306265 67306265 148000 Supporter 67303910 67303910 149980 Shroud 67305519 67305519 152302 Filter Air 67304308 67304308 237200 Panel Control 67305514 67305514 238310 Escutcheon 67500143 67500143 249950 Case Assembly Control 67500146 67500147 264110 Power Cord Assembly 67300022 67300028 267110 Remote Controller Assembly 67302232 67302232 346811 AC Motor Assembly 67303039 67303040 349001 Damper Vent 67303508 67303508 349480 Orifice 67303413 67303413 349600 Bracket Motor 67303607 67303607 352380 Guide Assembly Air 67302737 67302737 359011 Fan Axial 67302614 67302614 359012 Fan Turbo 67302616 67302616 550140 Damper Compressor 67305000 67305000 567480 Thermistor NTC 67307806 67307806 567502 Overload Protect 67301904 67301905 731273 Install Part Assembly Single 6730
23. roubleshooting Guide Is the Trans input power AC 115V YES Is the Trans output power Is shorted the Trans output about AC 14V Check the Fuse Check the wiring diagram NO Check the Main P W B pattern Is output Voltage of ICO1D NO gt Exchange the Trans Exchange 0020 0050 12 Is output Voltage of ICO2D Ne Exchange IC01D Exchange ICO2D 5 Is the reset circuit all right NO The No 14 of Micom is 5V NO connection between e Exchange Main and Display all right YES NO Connect connector a exactly Check the P W B Is the voltage No 18 of Micom DC 5V Ses Exchange Main P W B Ass y Y pattern Service Manual 20 Troubleshooting Guide Possible Trouble 2 compressor does not operate Is Temp setting set lower than Roo Temp 0 5 C Set the Temp setting to lower Temp Is the voltage No 10 of ICO1M OV Is the voltage NO 7 of Is the Unit for 3 minutes NO ICO1M DC 5V Check the RY COMP Exchange 01 Wait 3 Minutes Check the wiring Diagram Exchange MAIN P W B Ass Possible Trouble 3 The compressor always operate Is the wire conn
24. scharging the unit completely remove the desired component and unbraze the pinch off tubes 3 Solder service valves into the pinch off tube ports leaving the valves open 4 Solder the pinch off tubes with Service valves 5 Evacuate as follows 1 Connect the vacuum pump as illustrated figure 14A 2 Start the vacuum pump slowly open manifold valves A and B with two full turns counterclock wise and leave the valves open The vacuum pump is now pulling through valves A and up to valve by means of the manifold and entire system CAUTION If high vacuum equip ment is used just crack valves A and B for a few minutes then open slowly with the two full turns counter clockwise This will keep oil from foaming and being drawn into the vacuum pump 3 Operate the vacuum pump vaccum for 20 to 30 minutes until 600 microns of vaccum is obtained Close valves A and B and observe vacuum gauge for a few minutes A rise in pres sure would indicate a possible leak or moisture 13 Hoom Air Conditioner Figure 13 remaining in the system With valves A and B closed stop the vacuum pump 4 Remove the hose from the vacuum pump and place it on the charging cylinder See figure 14B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging Rech
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