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Skyworth SMVH09B-2A2A3NG, Service Manual

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Skyworth SMVH09B-2A2A3NG Service Manual Download Page 86

83

Removal Procedure

4. Remove the filter

5. Remove electric box cove

6. Remove the front case

Loosen the screws of the electric box cover with 
screwdriver.

Electric box cover

remove it.

Filter

A: Open the screw cap on the front case.

B: Remove the front case to seperate it 
    with bottom assembly. 

Procedure

Note

Summary of Contents for SMVH09B-2A2A3NG

Page 1: ...MODEL SMVH09B 2A2A3NG SMVH12B 3A2A3NG SMVH18B 4A2A3NG SMVH24B 5A2A3NG Refrigerant R32 ...

Page 2: ...n of Each Control Operation 22 5 Installation Manual 24 5 1 Safety operation of flammable refrigerant 24 5 2 Notices for Installation 25 5 3 Installation Dimension Diagram 27 5 4 Installation Indoor Unit 28 5 5 Installation Outdoor Unit 31 5 6 Check after installation 34 5 7 Test operation 34 5 8 Configuration of connection pipe 35 5 9 Pipe expanding method 36 6 Construction Views 37 6 1 Indoor Un...

Page 3: ...9 Troubleshooting 62 9 1 Error Code List 62 9 2 Procedure of Troubleshooting 65 10 Removal Procedure 82 10 1 Removal Procedure of Indoor Unit 82 10 2 Removal Procedure of Outdoor Unit 86 ...

Page 4: ...MVH09B 2A2A3NG O 220 240V 50Hz 1Ph Outdoor Unit SMVH12B 3A2A3NG KEB001Z1540 SMVH12B 3A2A3NG I SMVH12B 3A2A3NG O SMVH18B 4A2A3NG KEB001Z1550 SMVH18B 4A2A3NG I SMVH18B 4A2A3NG O SMVH24B 5A2A3NG KEB001Z1560 SMVH24B 5A2A3NG I SMVH24B 5A2A3NG O SMVH09B 2A2A3NG I SMVH12B 3A2A3NG I SMVH18B 4A2A3NG I SMVH24B 5A2A3NG I Remote Controller RA1A1 Outdoor Unit SMVH09B 2A2A3NG O SMVH12B 3A2A3NG O ...

Page 5: ...2 Summary and Features Outdoor Unit SMVH18B 4A2A3NG O SMVH24B 5A2A3NG O ...

Page 6: ... the site after installation Make sure no foreign objects are left in the unit Always ensure effective grounding for the unit Incorrect handling could result inpersonal injury or death Incorrect handling may result inminor injury or damage to product or property Warning Caution Warning Caution All electric work must be performed by a licensed technician according to local regulations and the instr...

Page 7: ...ng refrigerant with no harm to the ozonosphere The influence upon the greenhouse effect is also lower R32 has got very good thermodynamic features which lead to a really high energy efficiency The units therefore need a less filling The Refrigerant WARNING Do not use means to accelerate the defrosting process or to clean other than those recommended by the manufacture Should repair be necessary co...

Page 8: ...g A Average A Cooling A Average Air Flow Volume cooling SH H L SL m3 h 520 440 230 150 580 500 300 230 Dehumidifying Volume L h 0 80 1 40 Application Area m2 12 18 16 24 Indoor Unit Indoor Unit Model SMVH09B 2A2A3NG I SMVH12B 3A2A3NG I Fan Type Cross flow Cross flow Fan Diameter Length D L mm Ф97 5 579 Ф97 5 633 5 Cooling Speed SH H L SL r min 1300 1150 750 600 1350 1200 800 650 Heating Speed SH H...

Page 9: ...Gap mm 1 1 4 2 1 4 Condenser Coil Length L D W mm 742 19 05 506 719 38 1 506 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Maximum Allowable Pressure MPa 4 3 4 3 Cooling Operation Ambient Temperature Range 18 52 18 52 Heating Operation Ambient Temperature Range 15 24 15 24 Throttling Method Capi...

Page 10: ...ing A Average A Cooling A Average Air Flow Volume cooling SH H L SL m3 h 850 760 570 480 1090 930 670 560 Dehumidifying Volume L h 1 80 2 40 Application Area m2 25 36 37 54 Indoor Unit Indoor Unit Model SMVH18B 4A2A3NG I SMVH24B 5A2A3NG I Fan Type Cross flow Cross flow Fan Diameter Length D L mm Ф106 706 Ф108 830 Cooling Speed SH H L SL r min 1230 1130 900 800 1250 1100 850 750 Heating Speed SH H ...

Page 11: ...m Ф7 Ф7 Condenser Rows fin Gap mm 2 1 4 2 1 4 Condenser Coil Length L D W mm 869 38 1 572 878 38 1 660 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Maximum Allowable Pressure MPa 4 3 4 3 Cooling Operation Ambient Temperature Range 18 52 18 52 Throttling Method Capillary Capillary Defrosting Met...

Page 12: ...oor DB20 C Indoor air flow Super High Pipe length 5m Outdoor temp C Condition Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Condition Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Condition Indoor DB20 C Indoor air flow High Pipe length 5m Heating operation ambient temperature range is 20ºC 24ºC Heating operation ambient temperature range is 15ºC 24ºC Compressor Speed rps Com...

Page 13: ...ition 5m Model Rated heating condition C DB WB Pressure of gas pipe connecting indoor and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Outdoor fan mode rpm Indoor Outdoor P MPa T1 C T2 C Super High 09K 12K 20 7 6 2 2 2 4 70 to 35 2 to 4 880 18K 850 24K 800 3 5 Noise Curve Indoor side noise when blowing Outdoor side noise when blowing Indoor fan motor ro...

Page 14: ...tton Clock button ECO button I feel button Quiet button button ON OFF button Mode button Quiet mode Clean mode ECO mode Temp display After connecting the power the air conditioner will make a sound Power indicator is ON After that you can operate the air conditioner by using remote controller Under on status pressing the button on the remote controller the display will show the corresponding set f...

Page 15: ...erature Set temperature range from remote controller 16 31 C Fan speed auto fan1 fan2 fan3 fan4 fan5 stepless speed Auto Cool Dry Fan Heat fan1 fan2 fan3 fan4 fan5 stepless speed AUTO Note When selecting with remote controller it s auto swing up down swing louver of air conditioner will swing up down automatically at the maximum angle When selecting with remote controller it s the fixed position s...

Page 16: ...is no this function for the units If press this button the main unit will sound but it also runs under original status HEALTH button Press this button to turn on or turn off the health function Note This function is not available for some models SLEEP button Press this button to turn on or turn off the SLEEP function under cool heat dry mode Note This function is off as defaulted after power on It...

Page 17: ...red time Press TIMER OFF to confirm it The word OFF will stop blinking icon resumes displaying Cancel TIMER OFF Under the condition that TIMER OFF is started up press TIMER OFF button to cancel it QUIET button Press this button to turn on or turn off the QUIET function in cool heat auto mode Note Press TURBO or FAN button the unit will quit this function This function is no use in fan mode or dry ...

Page 18: ... for 3s would start or cancel the Timing defrost Timing defrost The minimum cooling temperature setting In the off mode pressing TEMP and button at the same time the LCD will display the minimum cooling temperature The default temperature is 16 C and you can adjust the temperature with or from 16 C to 31 C 3 seconds later it will return to the standby mode In the off mode pressing TEMP and button ...

Page 19: ...pported 4 5 Cellphone data will be generated in the use of 3G 4G network of mobile phone model number Andriod version 4 4 4 KTU84P MIUI 7 0 Stable 7 0 5 0 KXDCNCI Quad core 2 3GHz MIUI version CPU about phone 21 09 Available 1 6GB version 8 4 1 12H321 20 0 MGA92ZP A Carrier Model General 21 09 4 2 5 Add Air Conditioner 1 Please find the operating steps and method about download APP in Chapter 1 fo...

Page 20: ... connect to the power T TIMER L C Distance 8m Enter Home Enter Home Enter Home Yes Does your air conditioning has been connected to the netword yet No Don t know 21 09 Yes No Don t know Next please long press the AC remote control about 2 seconds toward AC When hear a long and a short beep The AC enters configuration state 21 09 Next Complete the following steps to register for iOS system A Smart ...

Page 21: ...Home AMS APP K Waiting for the configuration to success After connect successful it will enter the main interface Connect ROUTERS Available Networks 21 09 Family ac04 ben Connect ROUTERS Available Networks 21 09 Family ac04 ben Connect ROUTERS 21 09 Family ac04 ben ABC space return X Ć Ĉ Available Networks Please Input the password of skyworth ac04 Cancel yes Switch Connecting Air Conditioner Netw...

Page 22: ... PM2 5Wiping Mode Sleep Swing Speed Light ON đ 5TROTK 17 16 16 16 19 19 19 20 20 21 21 21 4 2 7 Operation Notice 1 Main Control Interface A Power button Turn on off the air conditioner B Temperature zone Slide up and down to set temperature C Mode button Press to set the mode such as Auto Cool Dry Fan or Heat D Swing button Press to switch the swing status E Fan speed button Press to switch the fa...

Page 23: ...APP software upgrading method Press current version in menu enter the version update and description page and choose to upgrade the APP according to the content page 7 Air Conditioner Wi Fi indication light quick blinking Blink once every 1 second The Wi Fi module is being configured see point 5 for more details 8 Air Conditioner Wi Fi indication light slow blinking Blink once every 10 second When...

Page 24: ...nction Wi Fi indication light blinks 3s to 0 1s after succeed the Wi Fi indication light stop blinking Wi Fi indication lights will be all on When Wi Fi module and the Internet is disconnected Wi Fi indication lights will blink once every 10s bright 10s off 0 1s When the indication light is turned off Wi Fi light gets off the Wi Fi function can still be controlled 13 What is the applicable range f...

Page 25: ... i is equal or below 19 degree plus additional temperature it will run in heating mode and the setting temperature reach 20 degree at that time 3 When 1 9 degree additional temperature environment temperature 26 degree It will run in airfan mode if it is the first time entering auto mode It will run in original mode if it change from cooling and heating mode If original mode is dehumidifying it wi...

Page 26: ...aving mode 6 Low temperature heating Press MODE and button at the same time in heating mode it will show LA 7 Environment temperature push temperature button it will show environment temperature 5s and the setting temperature 8 Outdoor power Power on outdoor power is off 9 When unit is on except for fan mode outdoor power supply input high frequency 10 Entering off mode or fan mode outdoor power i...

Page 27: ...nt of the nameplate It s only allowed to be operated in the rooms that meet the requirement of the nameplate Check whether the maintenance area is well ventilated The continuous ventilation status should be kept during the operation process Check whether there is fire source or potential fire source in the maintenance area The naked flame is prohibited in the maintenance area and the no smoking wa...

Page 28: ...ormal operation wrong action mechanical malfunction or even series safety accident 3 When refrigerant needs to be recovered during relocating or repairing the unit be sure that the unit is running in cooling mode Then fully close the valve at high pressure side liquid valve About 30 40 seconds later fully close the valve at low pressure side gas valve immediately stop the unit and disconnect power...

Page 29: ...ch is out of reach for children and far away from animals or plants If it is unavoidable please add the fence for safety purpose 5 1 2 Installation Site of Indoor Unit 5 1 3 Installation Site of Outdoor Unit 5 1 4 Safety Precautions for Electric Appliances 1 A dedicated power supply circuit should be used in accordance with local electrical safety regulations 2 Don t drag the power cord with exces...

Page 30: ...bstruction Space to the ceiling Space to the obstruction At least 30cm At least 15cm At least 15cm Space to the wall Space to the wall Space to the wall At least 30cm Space to the obstruction At least 15cm At least 200cm Space to the obstruction A t l e a s t 3 0 0 c m S p a c e t o t h e o b s t r u c t i o n Space to the floor ...

Page 31: ...in smoothly slant the piping hole on the wall slightly downward to the outdoor side with the gradient of 5 10 indoor outdoor 5 10 Ф55 Ф70 Note Pay attention to dust prevention and take relevant safety measures when opening the hole The plastic expansion particles are not provided and should be bought locally Step 4 Outlet pipe 1 The pipe can be led out in the direction of right rear right or left ...

Page 32: ...ng pipe torque wrench open end wrench indoor pipe pipe union nut Hex nut diameter Tightening torque N m Ф 6 15 20 Ф 9 52 30 40 Ф 12 45 55 Ф 16 60 65 Ф 19 70 75 4 Wrap the indoor pipe and joint of connection pipe with insulating pipe and then wrap it with tape Step 6 Install drain hose 1 Connect the drain hose to the outlet pipe of indoor unit 2 Bind the joint with tape outlet pipe drain hose drain...

Page 33: ... should be more than 3mm panel screw wiring cover Step 8 Bind up pipe 1 Bind up the connection pipe power cord and drain hose with the band 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to a certain degree separate the indoor power and then separate the drain hose 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately ...

Page 34: ...acity of 10000W 16000W 10 expansion screws are needed Step 2 Install drain joint Only for cooling and heating unit 1 Connect the outdoor drain joint into the hole on the chassis as shown in the picture below 2 Connect the drain hose into the drain vent Step 3 Fix outdoor unit 1 Place the outdoor unit on the support 2 Fix the foot holes of outdoor unit with bolts at least 3cm above the the floor dr...

Page 35: ...l bent reasonably and hidden possibly Min semidiameter of bending the pipe is 10cm 2 If the outdoor unit is higher than the wall hole you must set a U shaped curve in the pipe before pipe goes into the room in order to prevent rain from getting into the room Note The through wal height of drain hose shouldn t be higher than the outlet pipe hole of indoor unit The water outlet can t be placed in wa...

Page 36: ...here may be leakage 5 Remove the piezometer open the valve core of liquid valve and gas valve completely with inner hexagon spanner 6 Tighten the screw caps of valve and refrigerant charging vent 7 Reinstall the handle 1 With leakage detector Check if there is leakage with leakage detector 2 With soap water If leakage detector is not available please use soap water for leakage detection Apply soap...

Page 37: ... grounded securely It may cause electric leakage Does the power cord follow the specification It may cause malfunction or damaging the parts Is there any obstruction in the air inlet and outlet It may cause in sufficient cooling heating capacity The dust and sundries caused during installation are removed It may cause malfunction or damaging the parts The gas valve and liquid valve of connection p...

Page 38: ...pipe is prolonged for 10m at the basis of standard length you should add 5ml of refrigerant oil for each additional 5m of connection pipe The calculation method of additional refrigerant charging amount on the basis of liquid pipe Additional refrigerant charging amount prolonged length of liquid pipe additional refrigerant charging amount per meter Basing on the length of standard pipe add refrige...

Page 39: ... C Put on suitable insulating pipe D Put on the union nut Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe union pipe pipe E Expand the port Expand the port with expander expander hard mold pipe Note A is different according to the diameter please refer to the sheet below Outer diameter mm A mm Max Min Ф6 6 35 1 4 1 3 0 7 Ф9 52 3 8 1 6 1 0 Ф12 ...

Page 40: ...Construction Views 6 1 Indoor Unit Model W H D 09K 792 279 195 12K 850 291 203 18K 972 302 224 24K 1081 327 248 12K W H D 34 291 122 127 542 181 850 38 38 Φ55 Φ55 85 Unit mm 792 169 5 462 160 5 279 123 36 42 42 100 Φ55 Φ55 09K ...

Page 41: ...38 Construction Views 18K 35 302 148 96 5 687 188 5 972 37 37 Φ55 Φ70 Φ55 Φ70 184 24K Unit mm 208 186 129 178 46 327 153 687 Φ55 Φ55 1081 ...

Page 42: ...39 Construction Views Model SMVH18B 4A2A3NG O 890 820 372 310 598 550 338 6 2 Outdoor Unit 830 762 540 257 325 540 290 Model SMVH09B 2A2A3NG O SMVH12B 3A2A3NG O ...

Page 43: ...40 Construction Views Unit mm 960 890 396 358 700 560 368 Model SMVH24B 5A2A3NG O ...

Page 44: ...41 Exploded Views and Parts List 7 Exploded Views and Parts List 7 1 Indoor Unit Model SMVH09B 2A2A3NG I 2 3 1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 31 32 33 34 35 26 27 28 30 29 ...

Page 45: ...me K10450006 1 15 Fan Motor Clamp Board K22020003 1 16 Fan Motor K16800001 1 17 Fan Motor Clamp Board K22020001 1 18 Drain Pipe K1301000101 1 19 Step Motor K17000001 1 20 Crank K61200001 1 21 Swing Louver K15200005 1 22 Axile Bush K15210002 1 23 Electrical Box Cover 2 Subassembly K10553000 1 24 Screw Cap K21830002 1 25 Electrical Box Assembly K11800395 1 26 Display Board K21610033 1 27 Electrical ...

Page 46: ...43 Exploded Views and Parts List Model SMVH12B 3A2A3NG I 2 3 1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 31 32 33 34 35 26 27 28 30 29 ...

Page 47: ...Frame K10450001 1 15 Fan Motor Clamp Board K22020002 1 16 Fan Motor K16800002 1 17 Fan Motor Clamp Board K22020001 1 18 Drain Pipe K1301000102 1 19 Step Motor K17000002 1 20 Crank K61200001 1 21 Swing Louver K15200003 1 22 Axile Bush K15210002 1 23 Electrical Box Cover 2 Subassembly K10553000 1 24 Screw Cap K21830002 1 25 Electrical Box Assembly K11800396 1 26 Display Board K21610033 1 27 Electric...

Page 48: ...45 Exploded Views and Parts List Model SMVH18B 4A2A3NG I 35 36 37 34 33 32 31 30 29 28 27 26 23 22 21 20 19 18 17 16 15 14 13 12 11 10 3 4 5 6 7 8 9 24 25 1 2 ...

Page 49: ...10450017 1 16 Fan Motor Clamp Board K22020004 1 17 Fan Motor K16800003 1 18 Fan Motor Clamp Board K61000009 1 19 Connction Pipe Pressed Plate K22020005 1 20 Motor Stand K61000008 1 21 Drain Pipe K1301000103 1 22 Step Motor K17000003 1 23 Crank K61200001 1 24 Axile Bush K15210002 1 25 Electrical Box Cover 2 Subassembly K20400022 1 26 Electrical Box Assembly K11800397 1 27 Display Board K21610033 1 ...

Page 50: ...47 Exploded Views and Parts List Model SMVH24B 5A2A3NG I 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 25 26 27 28 29 14 30 31 32 33 34 1 2 5 4 3 24 23 ...

Page 51: ...r Assembly K10200024 1 15 Wall Frame K10450024 1 16 Fan Motor Clamp Board K22020007 1 17 Fan Motor K16800014 1 18 Connction Pipe Pressed Plate K22020005 1 19 Drain Pipe K1301000104 1 20 Step Motor K17000003 1 21 Crank K61200001 1 22 Axile Bush K15210002 2 23 Display Board K21610033 1 24 Electrical Box Cover 2 Subassembly K20400022 1 25 Electrical Box Assembly K11800398 1 26 Electrical Box Cover 1 ...

Page 52: ...49 Exploded Views and Parts List 7 2 Outdoor Unit Model SMVH09B 2A2A3NG O SMVH12B 3A2A3NG O 1 2 3 4 10 19 20 35 7 9 21 8 36 37 22 27 28 29 30 31 32 33 6 34 11 23 16 18 17 38 39 5 12 13 14 15 25 24 26 ...

Page 53: ...0002 K22210002 1 17 Right Side Panel K1060000101P K1060000101P 1 18 Big Handle Guard Board K10620001 K10620001 1 19 Stop Valve K1420000203 K1420000203 1 20 Stop Valve K1420000103 K1420000103 1 21 Valve Support K1120000201P K1120000201P 1 22 Compressor And Accessory K10001002 K10001005 1 23 Wiring K33200009 K33200009 1 24 Electric Box Assembly K39901106 K39901105 1 25 Wire Fix Clamp K61000003 K6100...

Page 54: ...51 Exploded Views and Parts List Model SMVH18B 4A2A3NG O 11 1 2 3 4 5 6 7 8 9 12 10 13 16 17 18 19 20 21 22 23 24 14 15 27 32 33 34 35 28 30 31 29 25 26 ...

Page 55: ... 4 way valve Assembly K20305038 1 15 4 way valve Coil K3380000501 1 16 Right Side Panel K1060003201P 1 17 Big Handle K22210001 1 18 Valve Support Subassembly K11200007P 1 19 Valve Cover K21420017 1 20 Stop Valve K1420000603 1 21 Stop Valve K1420000307 1 22 Noise absorption Sponge K61410054 1 23 Compressor And Accessory K10001003 1 24 Noise absorption Sponge K61410053 1 25 Electric Heating Belt K30...

Page 56: ...53 Exploded Views and Parts List Model SMVH24B 5A2A3NG O 2 3 5 4 6 7 8 9 10 11 12 13 15 20 21 22 24 26 27 28 29 31 33 34 35 36 37 38 39 43 14 23 25 16 1 17 30 32 18 19 40 41 42 ...

Page 57: ...8 Big Handle Guard Board K10620003 1 19 Valve Cover K21420010 1 20 Valve Support Subassembly K1120000701P 1 21 Noise absorption Sponge K61410028 1 22 Noise absorption Sponge K61410027 1 23 Wiring K3320000901 1 24 Compressor And Accessory K10001004 1 25 Stop Valve K1420000103 1 26 Stop Valve K1420004403 1 27 Electric Box Assembly K39901110 1 28 Wire Fix Clamp K61000004 1 29 Insulation Gasket K60600...

Page 58: ... Name COMPRESSOR 4 WAY VALVE ELECTRONIC EXPANSION VALVE PROTECTIVE EARTH Meaning of marks Indoor Unit 1 287 225 81 7 20 0 3 1 3 1 8 0 7 50 1 2 211 7 1 8 1 7 03 63 78 7 03 6 1625 5220 7 03 6 1625 63 2 1 02725 67 33 1 02725 3 3 1 9 325 725 57 3 7 0 1 2 5 7 1 8 1 1 60 57 02 8 7 7 1 2 3 60 5 8 These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Page 59: ...than 30 minutes to prevent the risk of electric shock ZDUQLQJ 7 50 1 2 COMP Model SMVH24B 5A2A3NG O 0 287 1 7 03 6 1625 1 28778 1 7 9 1 1 3 32 5 1 8 1 3 1 8 1 1 8 5 203 9 6 8 5 8 5 3 1 3 3 3 5 725 5 5 27720 7 5 203 7 5 7 03 6 1625 2875220 7 03 6 1625 867 8 8 9 5 7 03 3 1 8 1 8 1 1 20 7 7 RSWLRQDO 1 225 81 7 0 1 2 5 3 1 3 2 5 Please don t touch any electronic component or terminal when the machine ...

Page 60: ...ld plasma zero wire connector 3 Power supply zero wire connector 4 AC motor connector 5 wire connector 6 AC motor feedback connector 7 8 Up and down louver motor connector 9 Left and right louver motor connector 10 WIFI 11 Sensor connector 12 Display connector 13 wire connector 14 Communication connector 15 wire connector 16 wire connector ...

Page 61: ...he outer ring temperature 15 k 25 đ exhaust 50 k 25 đ 5 OFAN OFAN1 Fan interface Used to connect to external fan 6 HEAT C Compression mechanical and electrical heated interface Used to compress the mechanical and electrical heating zone 7 HEAT B Chassis electrical heating zone interface Used for chassis electrical heating zone 8 F WAY 4 way valve interface 4 way valve 9 COM Communication line Used...

Page 62: ...ase current sampling circuit PFC current sampling circuit 3 Power factor correction PFC control circuit 4 Master control chip circuit 5 DC fan electric circuit sampling circuit 6 Switch power supply circuit 7 8 Wire communication circuit 9 Fan and load control circuit 1 2 3 4 5 9 6 8 7 ...

Page 63: ...alve interface Used to connect five core electronic expansion valve 5 OFAN OFAN1 Fan interface Used to connect to external fan 6 HEAT C Compression mechanical and electrical heated interface Used to compress the mechanical and electrical heating zone 7 HEAT B Chassis electrical heating zone interface Used for chassis electrical heating zone 8 F WAY 4 way valve interface 4 way valve 9 COM Communica...

Page 64: ...ase current sampling circuit PFC current sampling circuit 3 Power factor correction PFC control circuit 4 Master control chip circuit 5 DC fan electric circuit sampling circuit 6 Switch power supply circuit 7 EMI filter circuit 8 Wire communication circuit 9 Fan and load control circuit ...

Page 65: ...ompressor need to limit the frequency or frequency reduction operation The normal limit frequency reduction function d5 IPM temp limit down Outdoor The compressor module temperature is too high compressor need to limit the frequency or frequency reduction operation The normal limit frequency reduction function E0 High discharge temp protection Outdoor See Diagram 1 See Diagram 1 E1 Overload protec...

Page 66: ...agram 11 See Diagram 11 L4 Select the port level abnormal error Indoor The mainboard is broken Change the mainboard L5 Indoor EEPREM error Indoor See Diagram See Diagram L6 Outdoor display communication between Indoor and Outdoor failure Outdoor See Diagram 12 See Diagram 12 LL Trial running Indoor Normal Function Normal Function P0 Outdoor EEPREM error Outdoor 1 EEPROM chip U8 loose 2 The mainboa...

Page 67: ...mainboard loosened or poorly contacted 2 The sensor is broken 3 The mainboard is broken 1 Check the wiring terminal 2 Change the sensor 3 Change the mainboard U3 Outdoor mid coil temp sensor short open Outdoor 1 The wiring terminal between the temperature sensor and the mainboard loosened or poorly contacted 2 The sensor is broken 3 The mainboard is broken 1 Check the wiring terminal 2 Change the ...

Page 68: ...oblem solved Problem solved N N Y Y Y Y Y Y End Outdoor motor abnormal speed Under Cooling mode Resolve rotate speed problem Outdoor abnormal intake Under Cooling mode Resolve air inlet problem Change a temp sensor The system is normal but the compressor exhaust room temperature sensor resistance value is abnormal N N N N N N Change Mainboard Diagram 1 ...

Page 69: ...ion environment of unit Indoor and outdoor unit heat radiating is poor Indoor and outdoor motor work well 1 Checking the fan terminals connect well or not 2 Checking the motor of Indoor and Outdoor Unit is well or not Change the motor capacity C1 Checking the pipe temperature sensor is normal or not comparing pipe temperature sensor resistance table Checking the temperature of out pip while coolin...

Page 70: ...nnected Use ohmmeter measuring the overload protector resistance at ambient temp 1000 Ω resistance Check the electronic expansion valve coil is installed on the valve body correctly Change overload protector SAT Check the electronic expansion valve body is block or not The fault is clear Check the refrigerant situation please add refrigerant according to the technical specification when leakage ha...

Page 71: ...d Connected wires End Change Compressor Errors declared Change control board AP1 Over fill refrigerant The input voltage setting is normal The unit heat dissipation is bad Step out during the operation Check the outside fan motor is normal Check the fan terminals OFAN is connected Change fan motor capacity C1 Change outside fan motor Improve heat dissipation for unit such as heat exchanger clearan...

Page 72: ...p after 3 minutes Are the wires for the connection sequence right Replace the control panel AP1 If the fault is eliminated Replace the compressor 3 minutes End compressor connected correctly Is If the fault is eliminated If the fault is eliminated Refer to the Electrical Wiring Diagram and check if the connection between AP1 and COMP is loose and if the connection order is correct Whether refriger...

Page 73: ...stem pressure becomes too high The connection of capacitor C2 is loose Reconnect the capacitor C2 according to Electrical Wiring Diagram Then Restart the unit Stop the unit and disconnect the power supply Wait 20 minutes or use DC voltmeter to measure the voltage between the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Repla...

Page 74: ...alfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model Assemble the jumper cap with the same model Insert the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainboard with the same model End Y Y Y Y Y N N N N N ...

Page 75: ...he connection of PG Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened Tighten the screw reassemble the blade motor and shaft bearing rubber base sub assy to make sure there is no foreign object between them Y Y Y Y Y Y Y Y Y Y N N N N N N N N N Is malfunction eliminated Is malfunction eliminated Is ...

Page 76: ...ical box is normal Check the connecting cables connected to the indoor and outdoor unit properly by the wiring diagram Check the outdoor unit communication circuit See the Troubleshooting Method Fault declared Fault declared Fault declared Problem with the communication circuit Change the indoor unit main board Change the outdoor unit main board AP1 End Start Main check points Test the indoor and ...

Page 77: ...Numerical change Numerical change Use the Tesr 15 position to test voltage values by voltmeter Numerical change Use the Tesr 10 position to test voltage values by voltmeter Numerical change Outdoor unit communication circuit detection is normal Outdoor unit error End Outdoor unit communication circuit detection process as follows outdoor unit key test points ...

Page 78: ...is clear The fan motor and wind speed are operating normally or the fan speed is low or stop The compressor is operating normally check the noise oil leakage body temperature etc Solved the compressor abnormal operation problem Check the motor and re install motor in order to make fan motor operating normal Solved system internal blockage problem Check the system Error declared Error declared Erro...

Page 79: ...e or short circuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated Remove the PFC capacitor and measure resistance between the two terminals Is the resistance around zero The capacitor is short circuited and the capacitor should be repla ced Restart the unit If the fault is eliminated Disconnect the terminals for the reactor and measure the resistance betwee...

Page 80: ... indoor unit and outdoor unit is improper Check whether the installation postion is proper according to installation requirement for air conditioner Adjust the installation position and install the rainproof and sunproof for outdoor unit Refrigerant is leaking Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is lo...

Page 81: ...r Cylinder of compressor is blocked Compressor can t operate Repair or replace compressor 6 Air Conditioner is Leaking Possible Causes Discriminating Method Air conditioner Status Troubleshooting Drain pipe is blocked Water leaking from indoor unit Eliminate the foreign objects inside the drain pipe Drain pipe is broken Water leaking from drain pipe Replace drain pipe Wrapping is not tight Water l...

Page 82: ...5 29 12 6 65 3 105 101 0 9801 6 66 88 30 12 07 66 2 998 102 0 9519 5 63 46 31 11 57 67 2 898 103 0 9247 4 60 23 32 11 09 68 2 797 104 0 8984 3 57 18 33 10 63 69 2 702 105 0 873 2 54 31 34 10 2 70 2 611 106 0 8484 1 51 59 35 9 779 71 2 523 107 0 8246 0 49 02 36 9 382 72 2 439 108 0 8016 1 46 8 37 9 003 73 2 358 109 0 7793 2 44 31 38 8 642 74 2 28 110 0 7577 3 42 14 39 8 297 75 2 205 111 0 7369 4 40...

Page 83: ...4 6 167 90 1 818 17 162 1 19 26 17 55 5 942 91 1 763 16 153 3 20 25 01 56 5 726 92 1 71 15 145 21 23 9 57 5 519 93 1 658 14 137 2 22 22 85 58 5 32 94 1 609 13 129 9 23 21 85 59 5 13 95 1 561 12 123 24 20 9 60 4 948 96 1 515 11 116 5 25 20 61 4 773 97 1 47 10 110 3 26 19 14 62 4 605 98 1 427 9 104 6 27 18 32 63 4 443 99 1 386 8 99 13 28 17 55 64 4 289 100 1 346 7 94 29 16 8 65 4 14 101 1 307 6 89 1...

Page 84: ...04 54 616 52 250 50 000 47 859 45 822 43 882 42 034 40 275 38 598 37 000 35 476 34 032 32 637 31 315 30 052 28 847 27 697 26 597 25 547 841 108 791 159 659 701 621 342 585 412 551 747 520 197 490 621 462 888 436 875 412 468 389 563 368 059 347 865 328 895 311 070 294 315 278 561 263 743 249 801 236 679 224 325 212 690 201 728 191 397 181 657 172 472 163 807 155 630 147 910 140 620 133 733 127 225 ...

Page 85: ...ng NOTE Take SMVH12B 3A2A1NE I for example 1 Before disassembly 2 Remove panel and Display Board A Open the front panel B Loosen the screws of the display board with screwdriver C Push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel Display board 3 Remove guide louver Remove axial sleeve of guide louver Guide louver Sleeve Procedure Note ...

Page 86: ...electric box cove 6 Remove the front case Loosen the screws of the electric box cover with screwdriver Electric box cover remove it Filter A Open the screw cap on the front case B Remove the front case to seperate it with bottom assembly Procedure Note ...

Page 87: ...porator C Loosen the clasp at the joint of the electric box A Remove the screws at the joint of the evaporator and rear case B Adjust slightly the pipe on the evaporator to separate the pipe with the evaporator C Remove the evaporator to separate the evaporator with rear case assy Motor press plate Remove the screw of the motor press plateand then remove the press plate Electric box Procedure Note...

Page 88: ...rocedure 10 Remove motor and cross flow blade A Remove the cross flow blade and motor B Remove the screws at the joint of the cross flowblade and the motor Take down the motor Cross flow blade Motor Procedure Note ...

Page 89: ...arning 1 Before disassembly 2 Remove top cover Remove connection screws connecting the top cover plate with the front panel and the right side plate and then remove the top panel Top cover Screw Screw 3 Remove protective grille Remove the screws fixing protective grille and then remove the protective grille Note Procedure NOTE Take SMVH09B 3A2A1NE O for example ...

Page 90: ...onnection screw fixing the big handle and then remove the handle Big handle 4 Remove grille and panel A Remove connection screws between the front grille and the front panel Then remove the front grille B Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel Screw Grille Front panel Note Procedure ...

Page 91: ...e plate Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate 8 Remove electric box assy Remove screws fixing the electric box assy loosen the wire bundle and unplug the wiring terminals Then lift the electric box to remove it Right side plate Electric box assy Screw Left side plate Note Procedure ...

Page 92: ...ove tapping screws fixing the motor and lift the motor support to remove it Motor support Motor 11 Remove acoustic cotton Split the acoustic cotton lock and take out 3 pcs slowly NOTE Do not damage the pipe Acoustic cotton 1 9 Remove Reactor Reactor Take off the fixed screw and you could take off the reactor Screw Screw Note Procedure Acoustic cotton 2 Acoustic cotton 3 ...

Page 93: ...dering when unsoldering wrap the gas valve with awet cloth completely to avoid damage to the valve caused by high temperature Unsolder the spot weld of 4 way valve assy compressor and condenser and then remove the 4 way valve assy When unsoldering the spot weld wrap the 4 way valve with wet cloth completely to avoid damaging the valve due to high temperature 4 way valve assy Isolation sheet Screw ...

Page 94: ...e the 2 screws fixing the gas valve and unsolder the welding joint between the gas valve and the air return pipe to remove the gas valve 14 Remove Expansion valve Assy Unsolder the spot weld of expansion valve assy liquid valve and condenser and then remove the expansion valve assy Expansion valve Assy Gas valve Compressor Note Procedure ...

Page 95: ...SHENZHEN SKYWORTH AIR CONDITIONING TECHNOLOGY CO LTD NO 12 GAOKE AVENUE BAOLONG INDUSTRIAL CITY LONGGANG DISTRICT SHENZHEN GUANGDONG CHINA Web www skyworth ac com Tel 86 755 26743958 ...

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