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Midea 11DSNA-A-1301, Service Manual, Page: 14 / 66

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Midea 11DSNA-A-1301 Service Manual Download Page 14

 

 

12

4. Refrigerant Cycle Diagram 

For cooling only models: 

INDOOR

OUTDOOR

LIQUID SIDE

GAS SIDE

HEAT
EXCHANGE
(EVAPORATOR)

HEAT
EXCHANGE
(CONDENSER)

COMPRESSOR

CAPILIARY TUBE

 

 

 

 

Summary of Contents for 11DSNA-A-1301

Page 1: ...NEOLA INVERTER SERIES Service Manual 2013 11DSNA A 1301...

Page 2: ...6 3 Pipe length and the elevation 21 6 4 Installation for the first time 22 6 5 Adding the refrigerant after running the system for many years 25 6 6 Re installation while the indoor unit need to be r...

Page 3: ...le 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 risk...

Page 4: ...uring operation There is risk of fire or electric shock Do not place anything on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug during operation Th...

Page 5: ...ion that water could not enter the product There is risk of fire electric shock or product damage Ventilate the product from time to time when operating it together with a stove etc There is risk of f...

Page 6: ...preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may ca...

Page 7: ...es of the same type Do not mix old and mew batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fi...

Page 8: ...11D 09CRDN1 BN10W MOR 09CDN1 BN10W MS11D 09HRDN1 BN10W MOR 09HDN1 BN10W 12k MS11D 12CRDN1 MN10W MOB 12CDN1 MN10W MS11D 12HRDN1 MN10W MOB 12HDN1 MN10W MS11D 12CRDN1 BN10W MOR 12CDN1 BN10W MS11D 12HRDN1...

Page 9: ...lter O Killer Of Formaldehyde Compressor Crankcase Heater O Golden Fin O Self Clean O Louver Position Memory Function Refrigerant Leakage Detect Self diag Function Hydrophilic Aluminum Fin Anti rust C...

Page 10: ...680 178 255 MS11D 09CRDN1 BN10W MS11D 09HRDN1 BN10W MS11D 09CRDN1 MN5W MS11D 12CRDN1 MN10W 770 188 255 MS11D 12HRDN1 MN10W MS11D 12CRDN1 BN10W MS11D 12HRDN1 BN10W MS11D 18CRDN1 MN10W 905 198 275 MS11D...

Page 11: ...RDN1 BN10W MS11D 09HRDN1 BN10W MS11D 09CRDN1 MN5W MS11D 12CRDN1 MN10W 95 170 45 MS11D 12HRDN1 MN10W MS11D 12CRDN1 BN10W MS11D 12HRDN1 BN10W MS11D 18CRDN1 MN10W 80 100 45 MS11D 18HRDN1 MN10W Model R mm...

Page 12: ...1 MN5W 700 240 540 757 458 250 MOR 09CDN1 BN10W 660 265 540 732 458 276 MOR 09HDN1 BN10W 660 265 540 732 458 276 MOA 09CDN1 MN5W 700 240 540 757 458 250 MOR 12CDN1 BN10W 660 265 540 732 458 276 MOR 12...

Page 13: ...11 MOC 18HDN1 MN5W 760 285 590 823 530 290 MOF 22CDN1 MN5W 845 320 700 908 560 335 MOF 22HDN1 MN5W 845 320 700 908 560 335...

Page 14: ...12 4 Refrigerant Cycle Diagram For cooling only models INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR CAPILIARY TUBE...

Page 15: ...DOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE CHECK VALVE Heating Model only CAPILIARY TUBE REVERSING VALVE Heating Model only C...

Page 16: ...14 5 Wiring Diagram 5 1 Indoor Units MS11D 09CRDN1 MN5W MS11D 09HRDN1 MN5W MS11D 12CRDN1 MN10W MS11D 12HRDN1 MN10W...

Page 17: ...15 MS11D 09CRDN1 BN10W MS11D 09HRDN1 BN10W MS11D 12CRDN1 BN10W MS11D 12HRDN1 BN10W MS11D 18CRDN1 MN10W MS11D 18HRDN1 MN10W...

Page 18: ...16 MS11D 22CRDN1 MN10W MS11D 22HRDN1 MN10W...

Page 19: ...17 5 2 Outdoor Units MOA 09CDN1 MN5W MOB 12CDN1 MN10W MOB 12HDN1 MN10W MOR 09CDN1 BN10W MOR 09HDN1 BN10W MOR 12CDN1 BN10W MOR 12HDN1 BN10W...

Page 20: ...18 MOC 18CDN1 MN10W MOC 18HDN1 MN5W...

Page 21: ...19 MOF 22CDN1 MN5W MOF 22HDN1 MN5W...

Page 22: ...nnecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm 3 and 6 0 75 6 and 10 1 0 10...

Page 23: ...2 1 4 6 35 5 8 20 20 MS11D 12CRDN1 BN10W MOR 12CDN1 BN10W 1 2 12 7 1 4 6 35 5 8 20 20 MS11D 12HRDN1 BN10W MOR 12HDN1 BN10W 1 2 12 7 1 4 6 35 5 8 20 20 MS11D 12CRDN1 MN10W MOB 12CDN1 MN10W 3 8 9 52 1 4...

Page 24: ...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...

Page 25: ...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...

Page 26: ...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...

Page 27: ...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...

Page 28: ...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...

Page 29: ...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...

Page 30: ...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 system Procedure 1 Confirm th...

Page 31: ...le 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 with the specified amount of refrigerant or can be ch...

Page 32: ...30 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage...

Page 33: ...s of this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 Optimum perfor...

Page 34: ...icator Flash at 0 5Hz when the unit is standby Illuminate when the unit is turned on Timer indicator This indicator illuminates when TIMER is set ON OFF Defrost Indicator This indicator illuminates wh...

Page 35: ...for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module Protection The Inverter module has a protection function about current voltage and temperature If these p...

Page 36: ...nd the LED will display the failure The correct zero crossing signal time interval should be between 6 13ms 8 4 Operation Modes and Functions 8 4 1 Fan mode 1 Outdoor fan and compressor stop 2 Tempera...

Page 37: ...requency for 7 minutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below 3 5 3...

Page 38: ...ease Decrease the running frequency to the lower level Hold Keep the current frequency Resume No limitation for frequency Note When AC is in hold zone for 3 minutes the compressor frequency will rise...

Page 39: ...equency T3 52 the compressor will not limit the frequency and resume to the former frequency T3 60 for 5 seconds the compressor will stop until T3 52 8 4 2 5 Evaporator temperature protection T2 0 the...

Page 40: ...Fmax F9 Fmax F10 Fmax F8 Fmax F6 Fmax F2 34 Off 33 28 27 25 24 22 21 19 18 16 17 15 14 Fmax F4 12 11 6 5 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7...

Page 41: ...r will run as the below rules A E Increase the frequency to the higher level until to F10 F Keep the current frequency G Decrease the frequency to the lower level until to F1 H Run at F1 for 1h if T1...

Page 42: ...7 15 Low High 8 4 3 3 Indoor fan running rules TEL8 TEL7 TEL6 TEL5 T2 TEL4 Setting Low Breeze Off TEL3 Medium TEL2 TEL0 Super Breeze TEL1 If the compressor stops caused by the room temperature rising...

Page 43: ...minutes T4 0 If the 1st condition and 2nd condition items are satisfied then the program judges if T2 has decreased more than 5 When T2 has decreased more than 5 enter the defrosting mode No matter w...

Page 44: ...42 Defrosting action For 9k 12k models Compressor on off on on on off off off 4 way valve Outdoor fan Indoor fan Indoor fan breeze 10s xx 10s no longer than 10m 30s FrequencyF8 10s Frequency F2 XX 60...

Page 45: ...k 22k models Compressor on off on on on off off off 4 way valve Outdoor fan Indoor fan Indoor fan breeze 10s xx no longer than 10m Frequency F8 30s 10s 10s Frequency F2 XX 60 for 18k model XX 90 for 2...

Page 46: ...be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode according to T T T1 Ts T T1 Ts Running mode T 1 Cooling 1 T 1 Fan only T 1 Heating Indoor fan will run a...

Page 47: ...machine to forced auto mode If pressing the button once again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch...

Page 48: ...low speed When heating the setting temperature decreases 1 be higher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind func...

Page 49: ...ting the unit again after shutting down its louver will restore to the angle originally set by the user but the precondition is that the angle must be within the allowable range if it exceeds it will...

Page 50: ...e sensor T2 open circuit or short circuit EC 7 X Refrigerant leak detection error F1 2 O Outdoor temperature sensor T4 open circuit or short circuit F2 3 O Condenser coil temperature sensor T3 open ci...

Page 51: ...49 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution E0 F4 EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage...

Page 52: ...50 9 2 2 Indoor outdoor unit s communication error diagnosis and solution E1...

Page 53: ...51 9 2 3 Zero crossing detection error diagnosis and solution E2 9 2 4 Indoor fan speed has been out of control diagnosis and solution E3...

Page 54: ...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...

Page 55: ...53 9 2 5 Open circuit or short circuit of temperature sensor diagnosis and solution E4 E5 F1 F2 F3...

Page 56: ...54 9 2 5 IPM malfunction or IGBT over strong current diagnosis and solution P0...

Page 57: ...55 9 2 6 Over voltage or too low voltage protection diagnosis and solution P1...

Page 58: ...56 9 2 7 High temperature protection of compressor top diagnosis and solution P2...

Page 59: ...57 9 2 8 Inverter compressor drive error diagnosis and solution P4...

Page 60: ...Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and turn it on 5 seconds later Is it still...

Page 61: ...TAGE CAUTION Connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Note The picture above is only f...

Page 62: ...meter Table1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temperature 5 10 15 20 25 30 40 50 60 Resistance Value K 26 9 20 7 16 1 12 6 10 8 5 2 3 5 2 4 Table 2 Some frequently used R T da...

Page 63: ...0W MS11D 12HRDN1 Q C2 Outdoor code 220037505560 220037306100 220037505570 220037401650 Outdoor MOR 12CDN1 BN10 W MOR 09HDN1 BN10 W MOR 12HDN1 BN10 W MOR3 12HDN1 QC2 Compressor DA108X1C 23EZ DA108X1C 2...

Page 64: ...62 Outdoor code 220037306370 Outdoor MOA 09CDN1 MN5W Compressor DA108X1C 23EZ Indoor fan motor RPG13B Outdoor fan motor YDK24 6KB...

Page 65: ...checking Measure the resistance value of each winding by using the tester Position Resistance Value DA108X1C 23EZ DA130M1C 31FZ DA130S1C 20FZ DA150S1C 20FZ Blue Red 1 1 20 0 95 20 0 95 20 0 95 20 Blue...

Page 66: ...tal tester Normal resistance value Red Black Several M P N U V W Digital tester Normal resistance value Red Black Several M U N V W 4 Indoor AC Fan Motor Measure the resistance value of each winding b...

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