Midea MOA01-09HFN1 Service Manual Download Page 17 | Manualshive

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DM16-01.01.23en

Kids Star Inverter

Service manual

17

6. Refrigerant Cycle Diagram

CHECK VALVE
(Heating Model only)

CAPILIARY TUBE

LIQUID SIDE

GAS SIDE

HEAT
EXCHANGE
(EVAPORATOR)

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

T5 Discharge temp. sensor

T4 Ambient
temp. sensor

INDOOR

OUTDOOR

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Summary of Contents for MOA01-09HFN1

Page 1: ...KIDS STAR Inverter Series Service Manual 2016 DM16 01 01 23en MSEAAU 09HRFN1 SB MOA01 09HFN1 MSEABU 12HRFN1 SB MOB01 12HFN1 MSEAAU 09HRFN1 SP MOA01 09HFN1 MSEABU 12HRFN1 SP MOB01 12HFN1...

Page 2: ...nd the elevation 19 7 4 Installation for the first time 20 7 5 Adding the refrigerant after running the system for many years 21 7 6 Re installation while the indoor unit need to be repaired 22 7 7 Re...

Page 3: ...Use the correctly rated breaker of fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or reinstall the u...

Page 4: ...e is risk of physical injury electric shock or product failure When the product is soaked contact an authorized service center There is risk of fire or electric shock Be caution that water could not e...

Page 5: ...of the product when removing the air filter They are very sharp Do not step on or put anything on the product outdoor units Always insert the filter securely Clean the filter every two weeks or more...

Page 6: ...01 01 23en 6 Service manual 2 Function Model Names of Indoor Outdoor Units Inverter Capacity Indoor units Outdoor units 9K MSEAAU 09HRFN1 SB MSEAAU 09HRFN1 SP MOA01 09HFN1 12K MSEABU 12HRFN1 SB MSEABU...

Page 7: ...sonal Cooling Pdesignc kW 2 6 3 5 SEER W W 7 1 6 8 Energy Efficiency Class A A Heating Average Pdesignh kW 2 6 3 5 SCOP W W 4 0 4 0 Energy Efficiency Class A A Tbiv 7 7 Heating Warmer Pdesignh kW SCOP...

Page 8: ...5 4x22 c Fin spacing mm 1 3 1 3 d Fin type code Hydrophilic aluminium Hydrophilic aluminium e Tube outside dia and type mm 7 innergroove tube 9 52 innergroove tube f Coil length x height x width mm 74...

Page 9: ...DM16 01 01 23en Kids Star Inverter Service manual 9 4 Dimension 4 1 Indoor Unit Model W D H MSEAAU 09HRFN1 SB SP 900 190 310 MSEABU 12HRFN1 SB SP...

Page 10: ...Kids Star Inverter DM16 01 01 23en 10 Service manual For MSEAAU 09HRFN1 SB MSEABU 12HRFN1 SB...

Page 11: ...radius is determined by the air conditioner installation position It is recommended to install the unit at 220mm 250mm from the floor The lower the unit installs the smaller distance the Intelligent...

Page 12: ...Kids Star Inverter DM16 01 01 23en 12 Service manual 4 2 Outdoor Unit...

Page 13: ...DM16 01 01 23en Kids Star Inverter Service manual 13 For MOA01 09HFN1 728 W 452 W1 555 60 85 5 301 12 0 286 741 W3 326 300 D 70 W2 H H1 H2 D1 D2 D3 20 A1 R20 R6 61 6 A2...

Page 14: ...Kids Star Inverter DM16 01 01 23en 14 Service manual For MOB01 12HFN1 800 W 514 W1 554 60 85 5 340 12 0 311 815 W3 365 333 D 70 W2 H H1 H2 D1 D2 D3 62 B1 106 B2 20 A1 R20 R6 61 6 A2...

Page 15: ...1 3 18 2 69 2 51 2 35 32 C D 23 C W Total capacity kW 2 73 2 76 2 79 2 82 2 84 2 87 2 90 2 93 3 13 3 15 3 04 2 61 2 47 2 41 Sensitive capacity kW 2 19 2 21 2 23 2 25 2 28 2 30 2 32 2 35 2 50 2 52 2 43...

Page 16: ...66 2 48 2 32 32 C D 23 C W Total capacity kW 3 64 3 68 3 72 3 75 3 79 3 83 3 87 3 91 4 17 4 21 4 05 3 47 3 29 3 21 Sensitive capacity kW 2 91 2 94 2 97 3 00 3 03 3 06 3 10 3 13 3 33 3 36 3 24 2 78 2 6...

Page 17: ...del only CAPILIARY TUBE LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sens...

Page 18: ...gf cm 4700 479kgf cm 19 3 4 6500 663kgf cm 6700 683kgf cm 7 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of applia...

Page 19: ...t Model Pipe size Standard length m Max Elevation B m Max Length A m Additional refrigerant g m Gas Liquid MSEAAU 09HRFN1 SB MOA01 09HFN1 3 8 9 52 1 4 6 35 5 10 25 15 MSEABU 12HRFN1 SB MOB01 12HFN1 Ca...

Page 20: ...that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charge hose of handle h...

Page 21: ...e the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the...

Page 22: ...e 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 caps and confirm that the valve stems are in the opene...

Page 23: ...does not indicate 0 1Mpa after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 0 1Mpa after pumping 50 minutes please check if there are some leakage points Fully...

Page 24: ...valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 P...

Page 25: ...stem has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 6 Mounted the valve stem caps and the service port Use torq...

Page 26: ...Kids Star Inverter DM16 01 01 23en 26 Service manual 8 Wiring Diagram 8 1 Indoor Unit 8 2 Outdoor Unit...

Page 27: ...conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80...

Page 28: ...display board Digital display Displays the temperature settings when the air conditioner is operational Displays the room temperature in FAN mode Displays the self diagnostic codes Dispalys under Coo...

Page 29: ...voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 10 3 6 Indoor fan delayed open function When the unit starts up t...

Page 30: ...ame as in cooling mode 5 Auto fan T 1 T s 10 4 2 Cooling Mode 10 4 2 1 Compressor running rules When T1 Ts T 2 the compressor will stop when T1 Ts T 0 5 the compressor will be activated T is the progr...

Page 31: ...enser temperature protection T3 Resume Off Decrease Hold Increase When condenser temperature temp is more than setting value the compressor will stop 10 4 2 5 Evaporator temperature protection When Ev...

Page 32: ...ill stop When the indoor temp reaches the setting temp the compressor will stop the indoor fan motor will run at setting speed The anti cold air function is valid Auto fan action in heating mode T 1 T...

Page 33: ...in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for certain time and then choose mode according to T1 TS and T4 If the setting temperature i...

Page 34: ...en the room light turns on again the display screen gets brighter 10 4 8 ECO function The ECO function can only be activated via WIFI control under cooling operation The indoor display screen displays...

Page 35: ...t forget to discharge the electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100 40W or soldering iron plug between...

Page 36: ...ient temperature sensor T4 open circuit or short circuit E52 Condenser coil temperature sensor T3 open circuit or short circuit E54 Compressor discharge temperature sensor TP open circuit or short cir...

Page 37: ...PCB main chip does not receive feedback from EEPROM chip Supposed causes Installation mistake PCB faulty Trouble shooting EEPROM a read only memory whose contents can be erased and reprogrammed using...

Page 38: ...ication diagnosis and solution E1 Error Code E1 Malfunction decision conditions Indoor unit does not receive the feedback from outdoor unit during 120 seconds and this condition happens three times co...

Page 39: ...er Service manual 39 Remark Use a multi meter to test the resistance of the reactor which does not connect with capacitor The normal value should be around zero ohm Otherwise the reactor must have mal...

Page 40: ...osis and solution E3 Error Code E3 E7 Malfunction decision conditions When indoor fan speed keeps too low 300RPM or too high 1500RPM for certain time the unit will stop and the LED will display the fa...

Page 41: ...2 Outdoor DC Fan Motor control chip is in outdoor PCB Power on and check if the fan can run normally if the fan can run normally the PCB must has problems and need to be replaced If the fan can t run...

Page 42: ...decision conditions If the sampling voltage is lower than 0 06V or higher than 4 94V the LED will display the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting Check the...

Page 43: ...erage_heat T1_Average heatantT0 ucT2AveCompOpen T2Average heatantT2 ucT1AveCompOpen T1_Average 3 Supposed causes T2 T4 T1 sensor faulty Indoor PCB faulty System problems such as leakage or blocking Tr...

Page 44: ...anual 11 2 6 Indoor PCB Display board communication error Eb Error Code Eb Malfunction decision conditions Indoor PCB does not receive feedback from Display board Supposed causes Wiring mistake PCB fa...

Page 45: ...7 Intelligent eye malfunction error EF Error Code EF Malfunction decision conditions The communication between Display board and Intelligent eye has malfunction Supposed causes Wiring mistake Intellig...

Page 46: ...sis and solution P0 Error Code P0 Malfunction decision conditions When the voltage signal that IPM send to compressor drive chip is abnormal the display LED will show P0 and AC will turn off Supposed...

Page 47: ...e large capacity electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Di...

Page 48: ...or too low voltage protection diagnosis and solution P1 Error Code P1 Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit...

Page 49: ...otection of IPM or compress top diagnosis and solution P2 Error Code P2 Malfunction decision conditions If the sampling voltage is not 5V the LED will display the failure Supposed causes Power supply...

Page 50: ...Kids Star Inverter DM16 01 01 23en 50 Service manual High temperature protection of compressor top Radiator and refrigerant copper pipe...

Page 51: ...decision conditions An abnormal inverter compressor drive is detected by a special detection circuit including communication signal detection voltage detection compressor rotation speed signal detect...

Page 52: ...t the temperature sensor from PCB measure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sens...

Page 53: ...8 37 99 5 87359 77 171 1 29078 117 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1...

Page 54: ...78 75 167 8 084 115 239 2 422 4 25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 3...

Page 55: ...1 23en Kids Star Inverter Service manual 55 2 Compressor checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN98D22UFZ Blue Red 1 57 20 68 Blue Black...

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