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Part 2 Functions & Controls

1. List of Controls & Functions ..........................................................................................9

2. Basic Mode Controls......................................................................................................10

3. Special Mode Controls...................................................................................................12

4. Utility Functions .............................................................................................................13

Содержание AS - W126BMS0

Страница 1: ...Room Air Conditioner SVC MANUAL General CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel 960 914 06...

Страница 2: ...2 Test Run Flow chart 18 3 Test Run Detail 19 Part 4 Trouble Shooting Guide 1 2 Way 3 Way Valve 21 2 Pumping Down 22 3 Evacuation All amount of refrigerant leaked 23 4 Gas Charging After Evacuation 24...

Страница 3: ...3 1 Safety Precautions 4 2 Nomenclature 7 Part 1 General Information...

Страница 4: ...y dangerous and may cause death or severe injury if come in contact with it Do not touch the discharging refrigerant gas during the repair work The discharging refrigerant gas The refrigerant gas can...

Страница 5: ...oxygen deficiency Be sure to turn off power switch before connecting or disconnecting connector or parts damage may be occur Do not use a defective or underrated circuit breaker Use the correctly rat...

Страница 6: ...e value is low a disaster such as a leak or electric shock is caused at user s side Check the drainage of the indoor unit after the repair If drainage is faulty the water may enter the room and wet fl...

Страница 7: ...V 50 60Hz 7 Chassis A Z Name of Chassis 8 Look A Z Look Color Artcool Model 9 Function A Z 10 Serial No 1 9 Model Development Serial No 1 2 3 4 5 6 7 8 9 10 Basic A Basic 4Way B Basic Deodorizing Filt...

Страница 8: ...8 Part 2 Functions Controls 1 List of Controls Functions 9 2 Basic Mode Controls 10 3 Special Mode Controls 12 4 Utility Functions 13...

Страница 9: ...nd vice versa Powerful cooling mode Powerful heating mode Air volume set temp are automatically selected for saving energy in cooling mode Operation without remote controller After cooling operation t...

Страница 10: ...time delay After compressor off the compressor can restart minimum 3 minute later 2 2 Heating Mode 2 C 3 6 F 4 C F Comp OFF INV Comp Frequency Low High Low High Comp OFF Setting Temp Thermo ON Thermo...

Страница 11: ...r conditioner changes the operation mode automatically to keep indoor temperature steady When room temperature vary over 2 C 4 F with respect to setting temperature air conditioner keeps the room tem...

Страница 12: ...d reach further 3 2 Jet Heat operation While in cooling mode or Auto Changeover operation the Jet Heat function does not work When it is input while in the Heating mode operation dehumidification the...

Страница 13: ...ou want to stop operation re press the button The ON OFF switch is on the display PCB or side of indoor unit 4 2 Auto cleaning operation Function used to perform Self Cleaning to prevent the Unit from...

Страница 14: ...e Auto control When the set sleep time is reached set time of 1 2 3 4 5 6 7hour input by the remote control during the operation the operation of the appliance stops When the appliance is on pause the...

Страница 15: ...fter a sudden power failure during operation the mode before the power failure is kept on the memory of the appliance and it automatically operates in the saved mode on the memory Operation mode that...

Страница 16: ...16 Part 3 Test Run 1 Check before Test Run 17 2 Test Run Flow chart 18 3 Test Run Detail 19...

Страница 17: ...between power supply terminal block and ground Do not operate in the case of 2 0 M or less NOTE Never carry out mega ohm check over terminal control board Otherwise the control board may break Immedia...

Страница 18: ...to part4 5 Cycle part No Is hot air discharged After Hot Start NOTE When outdoor temperature is low the unit is operated to Heating mode Yes No Is there any temperature difference between intake and...

Страница 19: ...discharge air 3 Ensure the difference between the intake temperature and the discharge is more than 8 C 46 F Cooling or Heating 4 For reference the gas side pressure of optimum condition is as below C...

Страница 20: ...2 Way 3 Way Valve 21 2 Pumping Down 22 3 Evacuation All amount of refrigerant leaked 23 4 Gas Charging After Evacuation 24 5 Cycle Troubleshooting Guide 25 6 Electronic Parts Troubleshooting Guide 26...

Страница 21: ...e Open Open Open with charging cylinder Open Open Open with charging cylinder Open Open Open Open Works Shipping Air purging Installation Operation Pumping down Transferring Evacuation Servicing Gas c...

Страница 22: ...hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the 2 way valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop...

Страница 23: ...harge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum p...

Страница 24: ...an not be charged with the spec ified amount of refrigerant it can be charged with a little at a time approximately 150g each time while operating the air conditioner in the cooling cycle however one...

Страница 25: ...Turn off the air conditioner when a power failure occurs When the power is restored wait 3 minutes and then turn on the air conditioner 23 The voltage is too high or too low Check if the circuit break...

Страница 26: ...he operation mode to the cooling operation Outside temperature is too high The cooling effect may not be sufficient 01 26 32 61 62 The air conditioner does not generate warm air When the heating mode...

Страница 27: ...dis charged from the air outlet of the indoor unit The cooled air from the air condi tioner makes mist When the room temperature is down this phenomenon will disappear 01 02 06 12 Water leaks from th...

Страница 28: ...ower The voltage applied to the unit The connecting method of Indoor Outdoor connecting cable each color The P W B Ass y Fuse Noise Filter Power Module SMPS IC01D IC04D Connection between housing and...

Страница 29: ...emote controller When operated in the Sleeping Mode the wind speed is set to the low speed as force Caused by the remote controller Caused by other parts except the remote controller When the mark is...

Страница 30: ...de refer to the trouble shooting guide Check the main power source AC 208V 230V Check the trouble shooting guide error code 21 26 Check that CN_FAN A B supplied voltage to outdoor PCB is about AC 208V...

Страница 31: ...38 of micom and the part for driving SSR Q01M Check the related pattern Check the SSR SSR Open Indoor Fan Motor never operate SSR short Indoor Fan Motor always operates in case of ON or OFF Check the...

Страница 32: ...nt from Model Indoor Unit Error 1 SW SB SC SH S4 S5 Chassis 1 SW SB SC Chassis 2 S4 S5 Chassis 4 LED Model 1 Digit 10 Digit LED1 1 Digit LED2 10 Digit Ex Error Code 5 Communication Failure LED1 1 Digi...

Страница 33: ...5 Communication Failure Indoor Unit Outdoor Unit 6 Indoor Sensor Exit Pipe open short 9 EEPROM ERROR Indoor Unit 10 Indoor Unit Fan Lock Operation Failure 12 Indoor Sensor Middle Pipe open short LED1...

Страница 34: ...es 7 Times 40 CT Sensor Open Short 4 Times 4 Times 41 INV D Pipe Th Error Open Short 4 Times 1 Time 4 Times 1 Time 44 Outdoor Air Th Error Open Short 4 Times 4 Times 4 Times 4 Times 45 Cond Middle Pip...

Страница 35: ...imes 3 Times 7 Times 40 CT Sensor Open Short 4 Times 4 Times 41 INV D Pipe Th Error Open Short 4 Times 1 Time 4 Times 1 Time 44 Outdoor Air Th Error Open Short 4 Times 4 Times 4 Times 4 Times 45 Cond...

Страница 36: ...it The communication is stopped for more than 2 minutes Stop 6 DC Peak Error DC Peak occurred Shutdown 7 CT Error CT detected Shutdown 8 Indoor Unit Fan Lock Error Fan Lock occurred BLDC Motor Stop 9...

Страница 37: ...Part 4 Trouble Shooting 37 Troubleshooting Guide Indoor Unit...

Страница 38: ...te 200 165 25 30 C Resistance Black 10 8 25 30 C Resistance Blue 5 4 25 30 C Yes No Replace Sensor Discharge Pipe Temp Sensor 200 Air Room Temp Sensor 10 Indoor Pipe Temp Sensor 5 Check Point 1 10k at...

Страница 39: ...9 16 95 585 66 5 41 26 09 13 05 465 17 10 50 20 27 10 14 372 49 15 59 15 89 7 94 300 58 20 68 12 55 6 28 244 33 25 77 10 5 200 30 86 8 03 4 01 164 79 35 95 6 49 3 24 136 64 40 104 5 28 2 64 113 98 45...

Страница 40: ...it normal Check the wire connection Open Soldered poorly Is the float switch clean Yes Yes No Check float switch No Clean float switch Is the resistance of f loat switch normal short Yes No Change th...

Страница 41: ...Part 4 Trouble Shooting 41 verify with hands verify with hands...

Страница 42: ...by hand to check connection status Repair or replace the harness Repair or replace the harness Connect certainly pulling by hand to check connection status Verify with hands certainly Verify with hand...

Страница 43: ...Shooting 43 Check that whether the housings and harness would be separated by pulling those with hands directly Remedy replace PCBAssembly caution Trouble Shooting Guide Outdoor Unit 2 LED Type 1 CH21...

Страница 44: ...Part 4 Trouble Shooting 44 Case of field defect IPM Over Current Limit Bending Folding SVC Valve close...

Страница 45: ...Part 4 Trouble Shooting 45 caution Check that whether the housings and harness would be separated by pulling those with hands directly 2 CH22 CT2 Error Input Over current...

Страница 46: ...Part 4 Trouble Shooting 46 3 CH23 DC Link Low Voltage Error...

Страница 47: ...Part 4 Trouble Shooting 47 4 CH26 DC Comp Location Sensing Error caution Check that whether the housings and harness would be separated by pulling those with hands directly...

Страница 48: ...Part 4 Trouble Shooting 48 5 CH27 PSC Fault Over current Error Check that whether the housings and harness would be separated by pulling those with hands directly caution...

Страница 49: ...ble Shooting 49 6 CH29 Compressor phase Over current Error only verifiable at Outdoor unit PCB Assembly Check that whether the housings and harness would be separated by pulling those with hands direc...

Страница 50: ...Part 4 Trouble Shooting 50 7 CH32 Inverter Compressor D Pipe Overheat Error Check that whether the housings and harness would be separated by pulling those with hands directly caution...

Страница 51: ...Part 4 Trouble Shooting 51 8 CH40 CT Sensor Error Open Short Tester Tester...

Страница 52: ...Part 4 Trouble Shooting 52 9 CH41 44 45 65 Inv D Pipe Outdoor Inlet Cond Pipe Heat sink Sensor Error...

Страница 53: ...Part 4 Trouble Shooting 53 10 CH53 Outdoor Unit Indoor Unit Communication Error...

Страница 54: ...Part 4 Trouble Shooting 54 11 CH60 Outdoor Unit PCB EEPROM Error Remedy reassemble EEPROM Replace PCB Assembly Check Method...

Страница 55: ...4 Trouble Shooting 55 12 CH61 Cond Pipe Overheat Error Check that whether the housings and harness would be separated by pulling those with hands directly caution Fan constraint Heat exchanger contami...

Страница 56: ...Part 4 Trouble Shooting 56 13 CH62 Heat Sink Overheat Error...

Страница 57: ...Part 4 Trouble Shooting 57 14 CH67 Outdoor BLDC Fan Lock Error Case of field defect BLDC Fan Motor short...

Страница 58: ...art 4 Trouble Shooting 58 Trouble Shooting Guide Outdoor Unit 1 LED Type 1 CH21 DC Peak Error Check that whether the housings and harness would be separated by pulling those with hands directly cautio...

Страница 59: ...Part 4 Trouble Shooting 59 Resistance between the lines of each 1 5 2 1 5 2 1 5 2 U V V W W U...

Страница 60: ...Part 4 Trouble Shooting 60 Check that whether the housings and harness would be separated by pulling those with hands directly caution 2 CH22 CT2 Error Input Over current...

Страница 61: ...Part 4 Trouble Shooting 61 3 CH23 DC Link Low Voltage Error...

Страница 62: ...Part 4 Trouble Shooting 62 4 CH26 DC Comp Location Sensing Error Check that whether the housings and harness would be separated by pulling those with hands directly caution...

Страница 63: ...ble Shooting 63 5 CH29 Compressor phase Over current Error only verifiable at Outdoor unit PCB Assembly Check that whether the housings and harness would be separated by pulling those with hands direc...

Страница 64: ...Part 4 Trouble Shooting 64 6 CH32 Inverter Compressor D Pipe Overheat Error Check that whether the housings and harness would be separated by pulling those with hands directly caution...

Страница 65: ...t sensing part normal Check voltage measurement on the input current Fig 1 at the power on standby state DC 0V 0 2V DC voltage measurement at the measurement point in figure 2 at power on standby stat...

Страница 66: ...Part 4 Trouble Shooting 66 8 CH41 44 45 65 Inv D Pipe Outdoor Inlet Cond Pipe Heat sink Sensor Error...

Страница 67: ...Part 4 Trouble Shooting 67 9 CH53 Outdoor Unit Indoor Unit Communication Error...

Страница 68: ...Part 4 Trouble Shooting 68 10 CH60 Outdoor Unit PCB EEPROM Error...

Страница 69: ...Part 4 Trouble Shooting 69 11 CH61 Cond Pipe Overheat Error Check that whether the housings and harness would be separated by pulling those with hands directly caution Fan Heat exchanger contaminated...

Страница 70: ...Trouble Shooting 70 12 CH62 Heat Sink Overheat Error Are the PCB temperature sensing parts normal Check that whether the housings and harness would be separated by pulling those with hands directly c...

Страница 71: ...Part 4 Trouble Shooting 71 13 CH67 Outdoor BLDC Fan Lock Error...

Страница 72: ...P No MFL41161608...

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