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Midea MOA-11HN1-QB8, Руководство по обслуживанию

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CONTENTS 

 

1. Precaution .................................................................................................................................................... 1

 

1.1 Safety Precaution .......................................................................................................................... 1

 

1.2 Warning ......................................................................................................................................... 1

 

2. Function ........................................................................................................................................................ 5

 

3. Dimension .................................................................................................................................................... 7

 

3.1 Indoor Units ................................................................................................................................... 7

 

3.2 Outdoor Units .............................................................................................................................. 10

 

4. Refrigerant Cycle Diagram ....................................................................................................................... 12

 

5. Wiring Diagram .......................................................................................................................................... 13

 

5.1 Indoor Units ................................................................................................................................. 13

 

5.2 Outdoor Units .............................................................................................................................. 17

 

6. Installation details ...................................................................................................................................... 22

 

6.1 Wrench torque sheet for installation ........................................................................................... 22

 

6.2 Connecting the cables ................................................................................................................ 22

 

6.3 Pipe length and the elevation ..................................................................................................... 23

 

6.4 Installation for the first time ......................................................................................................... 24

 

6.5 Adding the refrigerant after running the system for many years ................................................ 27

 

6.6 Re-installation while the indoor unit need to be repaired ........................................................... 28

 

6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 30

 

7. Operation characteristics ......................................................................................................................... 33

 

8. Electronic function .................................................................................................................................... 34

 

8.1 Abbreviation ................................................................................................................................ 34

 

8.2 Display function ........................................................................................................................... 34

 

8.3 Main Protection ........................................................................................................................... 35

 

8.4 Operation Modes and Functions ................................................................................................. 36

 

9. Troubleshooting ......................................................................................................................................... 47

 

9.1 Indoor unit error display .............................................................................................................. 47

 

9.2 Diagnosis and Solution ............................................................................................................... 48

 

Содержание MOA-11HN1-QB8

Страница 1: ...LUNA ON OFF SERIES Service Manual 2014 9ASEU B1 1401...

Страница 2: ...6 3 Pipe length and the elevation 23 6 4 Installation for the first time 24 6 5 Adding the refrigerant after running the system for many years 27 6 6 Re installation while the indoor unit need to be r...

Страница 3: ...mble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is ri...

Страница 4: ...y plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands Do not place a heater or other appliance near the power cable There is risk of fire an...

Страница 5: ...er supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result...

Страница 6: ...door units Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunctio...

Страница 7: ...OA1 09HN1 QC2 MS9A 09HRN1 QC2 MOA3 09HN1 QC2 MS9A 09HRN1 QC7G MOB1 09HN1 QC7 11k MS9A 11HRN1 QB8 MOA 11HN1 QB8 12k MS9A 12HRN1 QC2 MOB1 12HN1 QC2 MS9A 12HRN1 QC2 MOB3 12HN1 QC2 MS9A 12HRN1 QC7G MOB 12...

Страница 8: ...Filter O Bio Filter O Golden Fin O Cold catalyst filter Compressor Crankcase Heater O Self Clean O Follow me O 8 degree heating O Heat compensation O Self diag function Hydrophilic aluminum fin Anti...

Страница 9: ...9A 07HRN1 QC2 MS9A 09HRN1 QC2 MS9A 09HRN1 QB8 MS9A 09HRN1 QB6 MS9A 09HRN1 QC7G 790 198 265 MS9A 11HRN1 QB8 MS9A 12HRN1 QC2 MS9A 16HRN1 QB8 A MS9A 12HRN1 QC7G 920 223 292 MS9A 16HRN1 QB6 MS9A 17HRN1 QC...

Страница 10: ...m L mm H mm Dimension of installation hole mm MS9A 07HRN1 QB6 110 100 45 65 MS9A 07HRN1 QC2 MS9A 09HRN1 QB6 MS9A 09HRN1 QB8 MS9A 09HRN1 QC2 MS9A 09HRN1 QC7G 150 100 45 MS9A 11HRN1 QB8 MS9A 12HRN1 QC2...

Страница 11: ...on of installation hole mm MS9A 18HRN1 QC5 120 100 45 65 MS9A 24HRN1 QB8W Model R mm L mm H mm Dimension of installation hole mm MS9A 12HRN1 QC7G 185 150 45 65 MS9A 16HRN1 QB6 MS9A 17HRN1 QC0 MS9A 18H...

Страница 12: ...10 3 2 Outdoor Units More than 30cm More than 60cm More than 200cm More than 30cm More than 60cm Service space Fence or obstacles...

Страница 13: ...09HN1 QC2 700 240 540 757 458 250 MOA3 09HN1 QC2 MOA 11HN1 QB8 MOB1 09HN1 QC7 780 250 540 843 549 276 MOB 12HN1 QC7 MOB3 16HN1 QB6 MOB1 12HN1 QC2 MOB3 12HN1 QC2 MOB1 18HN1 QB6 MOC 17HN1 QC0 760 285 5...

Страница 14: ...R HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor T3 Condenser temp sensor ACCUMULATOR INDOOR OUTDOOR CHECK VALVE H...

Страница 15: ...Indoor Units MS9A 07HRN1 QB6 MS9A 07HRN1 QC2 MS9A 09HRN1 QB6 MS9A 09HRN1 QB8 MS9A 09HRN1 QC2 MS9A 09HRN1 QC7G MS9A 11HRN1 QB8 MS9A 12HRN1 QC2 MS9A 16HRN1 QB6 MS9A 16HRN1 QB8 A MS9A 17HRN1 QC0 MS9A 18H...

Страница 16: ...14 MS9A 12HRN1 QC7G...

Страница 17: ...15 MS9A 18HRN1 QC5...

Страница 18: ...16 MS9A 24HRN1 QB8W...

Страница 19: ...r Units MOK 07HN1 QB6 MOK1 07HN1 QB6 MOK1 07HN1 QC2 MOK1 09HN1 QB6 MOK 09HN1 QB8 MOA1 09HN1 QC2 MOA3 09HN1 QC2 MOB1 09HN1 QC7 MOA 11HN1 QB8 MOB 12HN1 QC7 MOB3 12HN1 QC2 MOB1 12HN1 QC2 MOB3 16HN1 QB6 M...

Страница 20: ...18 MOC 17HN1 QC0...

Страница 21: ...19 MOC 18HN1 QC0 MOF3 18HN1 QC5...

Страница 22: ...20 MOP 24HN1 QB8W...

Страница 23: ...21 MOF1 24HN1 QB8W...

Страница 24: ...4 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross section...

Страница 25: ...09HN1 QC7 MS9A 12HRN1 QC2 MOB1 12HN1 QC2 MS9A 11HRN1 QB8 MOA 11HN1 QB8 1 2 12 7 1 4 6 35 5 8 20 20 MS9A 12HRN1 QC2 MOB3 12HN1 QC2 MS9A 12HRN1 QC7G MOB 12HN1 QC7 MS9A 18HRN1 QB6 MOB1 18HN1 QB6 MS9A 16H...

Страница 26: ...t brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump 1 Completely tighten the flare nuts of the indoor and outd...

Страница 27: ...indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve...

Страница 28: ...rant if the pipe length 5m Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to...

Страница 29: ...nnect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinde...

Страница 30: ...e the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem c...

Страница 31: ...y the refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave...

Страница 32: ...to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole syst...

Страница 33: ...Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge wit...

Страница 34: ...32 6 Mounted the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage...

Страница 35: ...t to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set th...

Страница 36: ...amp This lamp illuminates when the air conditioner is in operation Auto indication lamp Lights up during the Auto operation Timer indication lamp Lights up during Timer operation Defrost indication la...

Страница 37: ...d outdoor fan will shut off B zone The current exceeds I5min for 5 minutes the compressor and outdoor fan will shut off C zone The current exceeds IFAN the outdoor fan will shut off if AC is in heatin...

Страница 38: ...Medium 8 4 2 Cooling Mode 8 4 2 1 Compressor running rules Once the compressor starts up it will follow the below rules When indoor room temp T1 is lower than Tn the compressor and outdoor fan will sh...

Страница 39: ...wer than TE5 for 5 minutes the compressor and outdoor fan will shut off When T2 is higher than TE6 the compressor and outdoor fan will restart up 8 4 2 5 Condenser high temperature T3 protection For M...

Страница 40: ...s Indoor fan can be set to high med low auto when the compressor is on And when the compressor is off the indoor fan will run at low speed and the louver will locate at the anti cold wind angle Anti c...

Страница 41: ...if any of the following items is satisfied 1 Both A and B are satisfied A The compressor keeps running for 40 minutes B The evaporator coil temp T2 Indoor room temp T1 meets the below table T2 T1 High...

Страница 42: ...d IDEFROST for 7 seconds Defrosting action About the setting defrosting time 1 Condition 1 of defrosting If case B happens before case A and lasts till case A happens the setting defrosting time is 10...

Страница 43: ...ST start defrosting Low TLDEFROST If indoor fan is in low speed and T2 T1 TLDEFROST start defrosting Breeze or stop If indoor fan is breezing or stopped start defrosting Capacity T2 T1 THDEFROST TMDEF...

Страница 44: ...ied 1 If T3 TC1 and the compressor keeps running over 45 minutes Meanwhile T3 TC3 for 3minutes 2 After the last defrosting the time that the outdoor fan is off but the compressor is on in high T2 prot...

Страница 45: ...ly mode AC will run in auto mode in the below cases 1 Pressing the forced auto button 2 If AC is off it will run in auto mode when the timer on function is active 3 After setting the mode AC will run...

Страница 46: ...as below sequence Forced auto Forced cooling Off Forced cooling mode The compressor and outdoor fan keep running and the indoor fan runs at low speed After running for 30 minutes AC will turn to dryi...

Страница 47: ...heat pump models when they are in heating the setting temperature decreases 1 be higher than 17 every one hour 2 hours later the the indoor fan is fixed as low speed Anti cold wind function has the p...

Страница 48: ...er malfunctions being eliminated and anti cold wind being released Ionizer will be available again 8 4 10 8 Heating optional In heating operation the preset temperature of the air conditioner can be a...

Страница 49: ...1 EEPROM error E4 Over current protection of the compressor occurs 4 times E5 Indoor room temperature sensor T1 open circuit or short circuit E6 Evaporator coil temperature sensor T2 open circuit or s...

Страница 50: ...perates normally Find out the cause and have it solved For example check whether the fan is blocked or the bearing is broken Check the wires of fan motor Are all the connections good No Yes No Correct...

Страница 51: ...dex2 1 Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 10...

Страница 52: ...e connections between temperature sensor and PCB Are the connections good Correct the connections No Yes Yes Replace indoor or outdoor PCB Replace the sensor and c h e c k i f t h e p r o b l e m happ...

Страница 53: ...re too high Does the outdoor unit has bad air circulation Yes No Check if the outdoor fan can run properly No Correct the connection of fan motor or replace the fan motor Yes Yes Check if the compress...

Страница 54: ...indoor PCB Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code 9 2 5 Zero crossing detection error diagnosis and solution Check if the connections and power...

Страница 55: ...er reconnect the power wire Is the error still displaying after several minutes No Yes Change the outdoor main PCB Power on Is the error extinguished Check all the wirings between indoor and outdoor i...

Страница 56: ...r Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter Table1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30...

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