Johnson Controls YORK YH9FXC18BAH-FX Service Manual Download | Manualshive

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Service Diagnosis

33

Domestic air conditioner

9.Dimensional drawings

10.Center of gravity

230mm

322mm

997mm

95.3mm

230mm

997mm

320.4mm

322mm

115.4mm

79mm

79mm

355mm

644mm

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Summary of Contents for YORK YH9FXC18BAH-FX

Page 1: ...SERVICE MANUAL High Wall Fixed R 410A 60Hz YH9FXC18BAH FX Read this manual before installation and operation Make sure that it is well kept for later reference ...

Page 2: ... Specifications 7 4 Sensors list 8 5 Pinping diagrams 9 6 Printed Circuit Board Connector Wiring Diagram 10 7 Functions and control 13 8 System configuration 26 9 Dimensional drawings 33 10 Center of gravity 33 11 Service Diagnosis 34 12 Circuit diagrams 38 Contents ...

Page 3: ... the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant gas The refrigeran...

Page 4: ...der in an enclosed room can cause oxygen deficiency 1 1 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipmen...

Page 5: ...or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equ...

Page 6: ...r can enter the room and wet the furniture and floor 1 1 3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and ...

Page 7: ...o check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 1 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 1 5 Using Icons List Icon Type of Information Description Note Note A note provides information that i...

Page 8: ...n design The panel is easy to wash and the airflow vents can be detached easily Child lock Avoid the child s wrong operation on the remote controller 3D air flow The 3D airflow is able to deliver the airflow horizontally and vertically Auto mode Adjust the last fixed operation mode automatically Power mode Quick cooling or heating Soft mode Lower noise operation condition Intelligent air With twin...

Page 9: ...K d e t a R n o i t p m u s n o C r e w o P 1 87 W W P O C S R E E S 0 1 0 2 h m l a v o m e R e r u t s i o M TECHNICAL SPECIFICATIONS m m D H W s n o i s n e m i D m m s n o i s n e m i D d e g a k c a P G K t h g i e W G K t h g i e w s s o r G e t i h W r o l o C Sound level Sound pressure high medium low dB 44 41 38 B d w o l m u i d e m h g i h r e w o p d n u o S D H W 2 81 60 230 1085 329 ...

Page 10: ... Downward Air filter Removable Washable Mildew Proof Temperature control Microcomputer Control A H L Y l e d o m r e l l o r t n o c e t o m e R Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i t a e h g n i l o o c Indoor 32 DB 23 WB Outdoor 43 DB 26 WB 5m 4 Sensors list type Description Qty 1 e r u t a r e p m e t m o o r g n i t c e t e d r o f d ...

Page 11: ...Piping diagrams Domestic air conditioner 5 Pinping diagrams 9 ...

Page 12: ... connector Connect with load 1 2 3 4 5 6 7 8 CN1 CN17 CN23 CN501 CN6 CN7 CN48 CN9 connector for power line N connector for power line L connector for compressor control connector for up and down step motor connector for ambient temp sensor and piping temp sensor connector for receiver display connector for Emergency switch connector for DC fan motor ...

Page 13: ...Connector Wiring Diagram 11 Domestic air conditioner Connector wring diagram CN17 CN7 CN48 CN6 CN501 CN23 CN9 CN1 ...

Page 14: ...RING DIAGRAM up down stepmotor K1 W R DC FAN MOTOR M CN23 FUSE1 CN501 left stepmotor CN31 SW1 CN6 PIPING TEMP SENSOR CN7 CN17 BR BL Y G CN1 T3 15A 250VAC CN9 AMBIENT TEMP SENSOR ION GENERATOR EMERGENCY SWITCH RECEIVER DISPLAY W or BR B or BL C0N1 C0N3 Y G 3 4 1 L 2 N W Y G R B BR ...

Page 15: ...cording to the determined mode Tr in the following selection conditions means room temperature Ts means setting temperature Tp means temperature of indoor coil pipe a Tr 23 running cooling mode b Tr 23 running heating mode After turning to the automation mode the running mode can be switched between cooling mode fan mode and heating mode according to the change of the indoor ambient temperature Bu...

Page 16: ...ne through the remote controller and the machine can be shut down immediately Avoiding electrical shock outlet air is available 2 seconds later after startup High temperature expiration protection 1 High temperature expiration prevention When the temp of coil pipe is above 72 compressor and outlet air stop running 10 seconds later and inlet air runs as the temp sensor is off When compressor stands...

Page 17: ...pressor must be started again 3 minutes later after shut down Avoiding electrical shock outlet air is available 2 seconds later after start up Timer on Timer off and sleep control are available Control of 4 way valve When the unit is started for the first time the 4 way valve starts running 10 seconds earlier than compressor does After compressor stops running the 4 way valve continues running for...

Page 18: ...entized defrosting and others with sensor defrosts according to sensor defrosting Intelligentized defrosting 7 1 5 3 1 1 Indoor unit enter overload protection and air outlet stops when air outlet has been restarted and runs over 10 minutes and compressor runs over 45 minutes in total and over 20 minutes continuously and the temp of indoor coil pipe is below 38 7 1 5 3 1 2 Compressor runs20minutes ...

Page 19: ...ep are set synchronously the one which time is short run first Executing shutdown instruction clear timer and sleep function 7 1 6 3 Timer on and timer off can be set synchronously 7 1 7 Sleep function the timer indicator lights up 7 1 7 1 In cooling defrosting mode the temp setting increases 1 one hour later after start up After another hour the temp setting increase by more 1 and then run contin...

Page 20: ...g status press the sleeping button 10 times within 5 seconds and the auto recovery function of power on can be set on off If the buzzer rings 4 times the the auto recovery function of power on is available If the buzzer rings 2 times the the auto recovery function of power on is unavailable If there is no EEPROM the unit is taken off the off function of the memory function of power down But the me...

Page 21: ...365 84 1185 1 40 1 32 1 92 5551 85 9574 79 7322 1 38 1 30 0 87 4712 81 3697 75 6011 1 36 1 29 1 82 6970 77 0544 71 7088 1 34 1 27 2 78 2118 72 9937 68 0402 1 31 1 25 3 73 9966 69 1712 64 5813 1 29 1 23 4 70 0335 65 5716 61 3188 1 27 1 21 5 66 3062 62 1807 58 2405 1 24 1 19 6 62 7992 58 9853 55 3351 1 22 1 17 7 59 4984 55 9729 52 5917 1 20 1 15 8 56 3905 53 1320 50 0006 1 17 1 13 9 53 4631 50 4521 ...

Page 22: ...8921 11 2459 10 6218 1 35 1 31 42 11 4113 10 7775 10 1665 1 39 1 34 43 10 9526 10 3311 9 7330 1 43 1 38 44 10 5147 9 9056 9 3204 1 48 1 42 45 10 0967 9 4999 8 9275 1 52 1 45 46 9 6976 9 1130 8 5532 1 56 1 49 47 9 3163 8 7439 8 1965 1 60 1 53 48 8 9521 8 3916 7 8566 1 64 1 57 49 8 6040 8 0554 7 5327 1 68 1 60 50 8 2713 7 7345 7 2237 1 73 1 64 51 7 9531 7 4280 6 9291 1 77 1 68 52 7 6489 7 1353 6 648...

Page 23: ...3 85 2 3602 2 1231 1 9075 3 38 3 07 86 2 2846 2 0530 1 8426 3 43 3 12 87 2 2118 1 9856 1 7803 3 48 3 16 88 2 1416 1 9207 1 7204 3 54 3 20 89 2 0740 1 8582 1 6628 3 59 3 25 90 2 0089 1 7981 1 6074 3 64 3 29 91 1 9461 1 7402 1 5541 3 70 3 34 92 1 8856 1 6844 1 5028 3 75 3 38 93 1 8272 1 6307 1 4535 3 80 3 43 94 1 7709 1 5789 1 4060 3 86 3 47 95 1 7166 1 5291 1 3603 3 91 3 52 96 1 6643 1 4810 1 3163 ...

Page 24: ...4 3392 111 8256 1 89 1 71 26 130 2371 117 4366 105 7989 1 87 1 70 25 122 8484 110 9627 100 1367 1 85 1 69 24 115 9272 104 8882 94 8149 1 83 1 67 23 109 4410 99 1858 89 8106 1 81 1 66 22 103 3598 93 8305 85 1031 1 80 1 64 21 97 6556 88 7989 80 6728 1 78 1 63 20 92 3028 84 0695 76 5017 1 76 1 62 19 87 2775 79 6222 72 5729 1 74 1 60 18 82 5577 75 4384 68 8710 1 72 1 59 17 78 1230 71 5010 65 3815 1 70...

Page 25: ...1 03 1 01 14 16 6711 15 9601 15 2657 1 01 0 99 15 15 9366 15 2770 14 6315 0 98 0 96 16 15 2385 14 6268 14 0271 0 96 0 94 17 14 5748 14 0079 13 4510 0 93 0 92 18 13 9436 13 4185 12 9017 0 91 0 90 19 13 3431 12 8572 12 3778 0 88 0 87 20 12 7718 12 3223 11 8780 0 86 0 85 21 12 2280 11 8126 11 4011 0 83 0 83 22 11 7102 11 3267 10 9459 0 81 0 80 23 11 2172 10 8634 10 5114 0 78 0 78 24 10 7475 10 4216 1...

Page 26: ...5 1 85 57 3 1969 2 9935 2 8005 2 00 1 89 58 3 0919 2 8922 2 7029 2 04 1 93 59 2 9909 2 7948 2 6092 2 08 1 97 60 2 8936 2 7012 2 5193 2 13 2 01 61 2 8000 2 6112 2 4328 2 17 2 05 62 2 7099 2 5246 2 3498 2 22 2 09 63 2 6232 2 4413 2 2700 2 26 2 13 64 2 5396 2 3611 2 1932 2 31 2 17 65 2 4591 2 2840 2 1195 2 36 2 21 66 2 3815 2 2098 2 0486 2 40 2 25 67 2 3068 2 1383 1 9803 2 45 2 29 68 2 2347 2 0695 1 ...

Page 27: ...0 9232 0 8319 0 7489 4 01 3 64 99 0 8983 0 8088 0 7275 4 07 3 69 100 0 8741 0 7863 0 7067 4 12 3 74 101 0 8507 0 7646 0 6867 4 18 3 78 102 0 8281 0 7436 0 6672 4 23 3 83 103 0 8061 0 7233 0 6484 4 29 3 88 104 0 7848 0 7036 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 ...

Page 28: ...know a clever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and h...

Page 29: ...icator White light for COOL DRY mode Green light for health function 1 2 3 5 8 5 6 4 7 front panel Front panel Horizontal louver Air Filter inside 7 Adjust up and down air flow Don t adjust it manually Vertical blade Adjust left and right air flow 1 Parts and Functions System configuration 8 2 Instruction Domestic air conditioner 27 ...

Page 30: ...witch in the test operation when the room normal operation your finger from the switch the cooling Continue to press the test operation switch for more than 5 seconds After you hear the Pi sound twice release Test operation switch is the same as emergency switch operation starts with the air flow speed Hi Emergency operation and test operation Use this operation only when the remote controller is ...

Page 31: ...can use this function In COOL mode fan speed automatically takes high speed of AUTO fan mode In HEAT mode fan speed automatically takes medial speed of AUTO fan mode You can use this function when silence is needed for rest or reading In SOFT operation mode fan speed automatically takes low speed of AUTO fan mode During POWER operation in rapid HEAT or COOL mode the room will show inhomogeneous te...

Page 32: ...opper If the right and left filters are not attached correctly that may cause defects Remote Controller Do not use the following for cleaning Do not use water wipe the controller with a dry cloth Do not use glass cleaner or chemical cloth Gasoline benzine thinner or cleanser may damage the coating of the unit Hot water over 40 O C 104 O F may cause discoloring or deformation Wipe the air condition...

Page 33: ...struct by yourself Do not use for the purpose of storage of food art work precise equipment breeding or cultivation CAUTION Take fresh air occasionally especially when gas appliance is running at the same time PROHIBITION STRICT ENFORCEMENT Do not operate the switch with wet hand PROHIBITION PROHIBITION PROHIBITION PROHIBITION PROHIBITION Do not install the unit near a fireplace or other heating a...

Page 34: ... immediately until 3 minutes have Cautions 3 If the fuse of indoor unit on PC board is it with the type of T 3 15A 250V outdoor broken change it with the type of T 25A 250V Do not obstruct or cover the ventilation Do not put fingers inlet outlet and swing louver Do not allow children to play with the air conditioner case should children be allowed to sit on the outdoor unit The refrigerating circu...

Page 35: ...Service Diagnosis 33 Domestic air conditioner 9 Dimensional drawings 10 Center of gravity 230mm 322mm 997mm 95 3mm 230mm 997mm 320 4mm 322mm 115 4mm 79mm 79mm 355mm 644mm ...

Page 36: ...re None of the units operates Check the power supply Check to make sure that the rated voltage is supplied Check the indoor PCB Check to make sure that the indoor PCB is broken Equipment operates but does not cool or does not heat only for heat pump Diagnosis by service port pressure and operating current Check for insufficient gas Large operating noise and vibrations Check the installation condit...

Page 37: ... t a r e p o n o i s i c e D Conditions Note The values vary slightly in some models Supposed Faulty connector connection Causes Faulty thermistor Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector of the thermistor on the PCB and measure the resistan...

Page 38: ...d to determine MCU Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Faulty EEPROM data Causes Faulty EEPROM Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard ...

Page 39: ...faulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Electrify the machine again and turn it on in the cooling operation Measure voltage between the positions 1and 3 of Terminal CN5 on the indoor PCB the voltage is about 90 220vac check whether motor ...

Page 40: ...8 04 立式 1 2 3 4 JP3 TJC8 04 立式 SW1 TSVC 1 E11 100uF 25V R74 1K 1 2 3 4 5 CN12 B5B PH K 红色立式 5V C21 100nF C31 100nF C34 100nF C35 1nF 1 13 BUZZ 1 14 POW 2 POWER_ON 12V 1 16 VSP 1 26 PG BACK 1 26 PG BACK 1 17 RSTEP_B 1 18 RSTEP_C R40 1K1 19 RSTEP_D 1 20 LSTEP_A 1 20 LSTEP_A 1 21 LSTEP_B 1 21 LSTEP_B 1 22 LSTEP_C 1 22 LSTEP_C 1 23 LSTEP_D 1 23 LSTEP_D 1 24 USTEP_A 1 24 USTEP_A 1 25 USTEP_B 1 25 USTE...

Page 41: ...2015 Johnson Controls Inc www johnsoncontrols com Doc No MH9FXCAH 151103 18 ...

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