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DM13-01.01.12en
NEOLA Inverter SERIES
Service Manual 2013
MS11D-09HRDN1 / MO11D-09HRDN1
MS11D-12HRDN1 / MO11D-12HRDN1
MS11D-18HRDN1 / MO11D-18HRDN1
MS11D-24HRDN1 / MO11D-24HRDN1
https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html
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Summary of Contents for Midea NEOLA MS11D-09HRDN1

  • Page 1 DM13-01.01.12en NEOLA Inverter SERIES Service Manual 2013 MS11D-09HRDN1 / MO11D-09HRDN1 MS11D-12HRDN1 / MO11D-12HRDN1 MS11D-18HRDN1 / MO11D-18HRDN1 MS11D-24HRDN1 / MO11D-24HRDN1 https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 2: Table Of Contents

    Neola Inverter DM13-01.01.12 en CONTENTS 1. Precaution ..............................3 1.1 Safety Precaution ........................3 1.2 Warning ............................3 2. Function ................................ 8 3. Specification ............................... 11 4. Dimension ..............................11 4.2 Outdoor Units ..........................17 5. Capacity tables ............................18 6.
  • Page 3: Precaution

    DM13-01.01.12en Neola Inverter 1. Precaution 1.1 Safety Precaution  To prevent injury to the user or other people and property damage, the following instructions must be followed.  Incorrect operation due to ignoring instruction will cause harm or damage.  Before service unit, be sure to read this service manual at first.
  • Page 4 Neola Inverter DM13-01.01.12 en  For installation, always contact the dealer or an Authorized service center. There is risk of fire, electric shock, explosion, or injury.  Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product. ...
  • Page 5 DM13-01.01.12en Neola Inverter  If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.  Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
  • Page 6 Neola Inverter DM13-01.01.12 en  Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors.  Use two or more people to lift and transport the product. Avoid personal injury.
  • Page 7 DM13-01.01.12en Neola Inverter There are sharp and moving parts that could cause personal injury.  Do not drink the water drained from the product. It is not sanitary could cause serious health issues.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.
  • Page 8: Function

    Neola Inverter DM13-01.01.12 en 2. Function Model Names of Indoor/Outdoor Units Series Capacity Indoor units Outdoor units MO11D-09HRDN1 MS11D-09HRDN1 MO11D-12HRDN1 MS11D-12HRDN1 Inverter MO11D-18HRDN1 MS11D-18HRDN1 MO11D-24HRDN1 MS11D-24HRDN1 The designs and information in this book are subject to change without notice for product improvement. Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 9 DM13-01.01.12en Neola Inverter Indoor units Operation by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Anti-freezing control in cooling Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooling mode Time Delay Safety control Indoor fan speed control...
  • Page 10 Neola Inverter DM13-01.01.12 en Outdoor units Power relay control Low noise air flow system Anti-rust cabinet Made from electrolytic zinc steel sheet and anti-rust coated components. Valve protection cover It protects the valves and prevents water from dripping. Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 11: Specification

    DM13-01.01.12en Neola Inverter 3. Specification Indoor MS11D-09HRDN1 MS11D-12HRDN1 Outdoor MO11D-09HDN1 MO11D-12HDN1 Power supply Ph-V-Hz 220-240V~ 50Hz, 1Ph 220-240V~ 50Hz, 1Ph Btu/h 9000(2250~10500) 12000(2450~14500) Capacity 2,64 (0,66~3,08) 3,52 (0,72~4,25) Cooling Input 815(180~1100) 1090(210~1380) Rated current 3.6(0.9~4.8) 4.8(1.0~6.2) 3.21 3.22 Btu/h 10000(2300~11500) 13500(2800~17000) Capacity 2,93 (0,67~3,37)
  • Page 12 Neola Inverter DM13-01.01.12 en f.Coil length x height x 510x80x11.28 600x84x13.37 width +510x180x22.56 +600x189x26.74 g.Number of circuits Indoor air flow (Hi/Mi/Lo) m3/h 530/430/390 630/550/420 Indoor noise level (Hi/Mi/Lo) dB(A) 36/30/28 38/35/28 Dimension 680x178x255 770x188x255 (W*D*H) Indoor unit Packing (W*D*H) 745x255x330 835x265x330 Net/Gross weight 7 / 8...
  • Page 13 DM13-01.01.12en Neola Inverter Indoor MS11D-18HRDN1 MS11D-24HRDN1 Outdoor MO11D-18HDN1 MO11D-24HRDN1 Power supply Ph-V-Hz 220-240V~ 50Hz, 1Ph 220-240V~ 50Hz, 1Ph Btu/h 18000(5100~23000) 24000(12000~25000) Capacity 5,28 (1,49~6,74) 7,03 (3,52~7,33) Cooling Input 1640(380~2000) 2190(820~2500) Rated current 7.3(1.8~10.2) 9.8(3.6~11.2) 3.21 3.21 Btu/h 18000(5300~24000) 25000(11000~27000) Capacity 5,28 (1,55~7,04) 7,33 (3,22~7,91) Heating...
  • Page 14 Neola Inverter DM13-01.01.12 en f.Coil length x height x 720x84x13.37 780x315x26.74 width +720x210x26.74 g.Number of circuits Indoor air flow (Hi/Mi/Lo) m3/h 850/750/550 1200/1100/900 Indoor noise level (Hi/Mi/Lo) dB(A) 43/39/33 47/45/39 Dimension 905x198x275 1030x218x315 (W*D*H) Indoor unit Packing (W*D*H) 970x270x345 1115x395x300 Net/Gross weight 9.0 / 11.5 12 / 15...
  • Page 15 DM13-01.01.12en Neola Inverter 4. Dimension 4.1 Indoor Units Model MS11D-09HRDN1 MS11D-12HRDN1 MS11D-18HRDN1 MS11D-24HRDN1 1030 Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) MS11D-09HRDN1 MS11D-12HRDN1 ¢65 MS11D-18HRDN1 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 16 Neola Inverter DM13-01.01.12 en Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) MS11D-24HRDN1 ¢65 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 17: Outdoor Units

    DM13-01.01.12en Neola Inverter 4.2 Outdoor Units More than 30cm More than 60cm (Service space More than 30cm More than 60cm More than 70cm Model MO11D-09HRDN1 MO11D-12HRDN1 MO11D-18HRDN1 MO11D-24HRDN1 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 18: Capacity Tables

    Neola Inverter DM13-01.01.12 en 5. Capacity tables MS11D-09HRDN1 / MO11D-09HRDN1 Cooling Cooling Outdoor conditions (DB) Indoor 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC (kW) Conditions 2,33 2,48 2,50 2,41 2,07 1,96 1,91 21/15ºC 1,86 1,99 2,00 1,93 1,65 1,57 1,53 DB/WB 0,61 0,66...
  • Page 19 DM13-01.01.12en Neola Inverter MS11D-12HRDN1 / MO11D-12HRDN1 Cooling Cooling Outdoor conditions (DB) Indoor 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC (kW) Conditions 3,10 3,31 3,34 3,21 2,76 2,61 2,55 21/15ºC 2,48 2,65 2,67 2,57 2,21 2,09 2,04 DB/WB 0,82 0,88 0,96 1,05 1,06 1,08...
  • Page 20 Neola Inverter DM13-01.01.12 en MS11D-18HRDN1 / MO11D-18HRDN1 Cooling Cooling Outdoor conditions (DB) Indoor 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC (kW) Conditions 4,66 4,96 5,01 4,82 4,14 3,92 3,82 21/15ºC 3,72 3,97 4,01 3,86 3,31 3,14 3,06 DB/WB 1,23 1,32 1,44 1,58 1,60...
  • Page 21: Refrigerant Cycle Diagram

    DM13-01.01.12en Neola Inverter 6. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING VALVE 3-WAY VALVE (Heating Model only) ACCUMULATOR COOLING COMPRESSOR HEATING Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 22: Wiring Diagram

    Neola Inverter DM13-01.01.12 en 7. Wiring Diagram 7.1 Indoor Units MS11D-09HRDN1 MS11D-12HRDN1 MS11D-18HRDN1 MS11D-24HRDN1 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 23: Outdoor Units

    DM13-01.01.12en Neola Inverter 7.2 Outdoor Units MO11D-09HRDN1 MO11D-12HRDN1 MO11D-18HRDN1 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 24 Neola Inverter DM13-01.01.12 en MO11D-24HRDN1 Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 25: Installation Details

    DM13-01.01.12en Neola Inverter 8. Installation details 8.1 Wrench torque sheet for installation Additional Outside diameter Torque tightening torque inch N.cm N.cm 1500 1600 Ф6.35 (153kgf.cm) (163kgf.cm) 2500 2600 Ф9.52 (255kgf.cm) (265kgf.cm) 3500 3600 Ф12.7 (357kgf.cm) (367kgf.cm) 8.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet.
  • Page 26 Neola Inverter DM13-01.01.12 en Caution: Capacity test is based on standard length and maximum allowance length is based on system reliability. Oil trap should be installed per 5-7 meters. Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 27: Installation For The First Time

    DM13-01.01.12en Neola Inverter 8.4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below: ● Pressure in the system rises. ● Operating current rises. ● Cooling or heating efficiency drops. ● Moisture in the refrigerant circuit may freeze and block capillary tubing. ●...
  • Page 28 Neola Inverter DM13-01.01.12 en meter 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 close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).
  • Page 29 DM13-01.01.12en Neola Inverter Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position.
  • Page 30: Adding The Refrigerant After Running The System For Many Years

    Neola Inverter DM13-01.01.12 en 6).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose. 7). Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N.m.
  • Page 31: Re-Installation While The Indoor Unit Need To Be Repaired

    DM13-01.01.12en Neola Inverter side), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose. 7). Mount 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.
  • Page 32 Neola Inverter DM13-01.01.12 en 6). Set the 3-way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. Disconnect the charge set, and tighten the 2-way and 3-way valve’s stem nuts. Use a torque wrench to tighten the 3-way valves service port cap to a torque of 1.8 kgf.m.
  • Page 33: Re-Installation While The Outdoor Unit Need To Be Repaired

    DM13-01.01.12en Neola Inverter 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems. 7).
  • Page 34 Neola Inverter DM13-01.01.12 en 2. Refrigerant charging Electronic scale 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 the valve at the bottom of the cylinder.
  • Page 35 DM13-01.01.12en Neola Inverter Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 36: Operation Characteristics

    Neola Inverter DM13-01.01.12 en 9. Operation characteristics Temperature   Coolingoperation Heatingoperation Dryingoperation Mode Roomtemperature ≥17℃ ≤30℃ >10℃ Outdoortemperature 0℃~50℃ -15℃~30℃ 0℃~50℃ CAUTION: 1. If air conditioner is used outside of the above conditions, certain safety protection features may come into operation and cause the unit to function abnormally. 2.
  • Page 37: Electronic Function

    DM13-01.01.12en Neola Inverter 10. Electronic function 10.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger 10.2 Display function 10.2.1 Icon explanation on indoor display board. One of the following figures matches its display board. Run indicator Flash at 0.5Hz when the unit is standby.
  • Page 38: Main Protection

    Neola Inverter DM13-01.01.12 en 10.3 Main Protection 10.3.1 Three Minutes Delay at restart for compressor 1 minute delay for the 1 time start-up and 3 minutes delay for others. 10.3.2 Temperature protection of compressor top The unit will stop working when the compressor top temp. protector cut off, and will restart after the compressor top temp.
  • Page 39: Operation Modes And Functions

    DM13-01.01.12en Neola Inverter If T4>5℃ or the compressor starts running, the preheating function will stop. 8.3.8 Zero crossing detection error protection If AC detects time interval is not correct for continuous 240s, the unit will stop and the LED will display the failure.
  • Page 40 Neola Inverter DM13-01.01.12 en If users switch on AC by remote controller, the compressor will run at the Fmax frequency 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: -0.5 -1.0 While...
  • Page 41 DM13-01.01.12en Neola Inverter Resume: No limitation for frequency. Note: When AC is in “hold” zone for 3 minutes, the compressor frequency will rise to the higher level. (frequency will increase twice at most) 10.4.2.2 Outdoor fan running rules High 10.4.2.3 Indoor fan running rules In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
  • Page 42 Neola Inverter DM13-01.01.12 en ---T2>7℃, the compressor frequency will not be limited. 10.4.3 Heating Mode 10.4.3.1 Compressor running rules The maximum operation frequency of the compressor after starting submits to the following rule. Fmax=F2 Fmax=F3 Fmax=F4 Fmax=F5 Fmax=F6 Fmax=F7 Fmax=F8 Fmax=F9 Fmax=F10 If users switch on AC by remote controller, the compressor will run at the Fmax frequency for 7...
  • Page 43 DM13-01.01.12en Neola Inverter +5.0 +4.5 +3.5 +3.0 +2.5 +2.0 +1.5 +1.0 +0.5 While Temp. zone Frequency ∆T=0℃ as default. Note: When T1-Ts keeps in the same temp. zone for 3 minutes, the compressor will run as the below rules: A~E: Increase the frequency to the higher level until to F10. F: Keep the current frequency.
  • Page 44 Neola Inverter DM13-01.01.12 en Off: Compressor stops. Decrease: 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 to the higher level. (The frequency will increase twice at most) 10.4.3.2 Outdoor fan running rules High...
  • Page 45 DM13-01.01.12en Neola Inverter preferential. Auto fan action in heating mode: Medium High 10.4.3.4 Defrosting mode Condition of defrosting: ----T4>0℃, When the units are running, if the following two items are satisfied, the units start defrosting: The units run with T3<3℃ for 40 minutes and T3 keeps lower than TCDI℃ for more than 3 minutes. The units run with T3<3℃...
  • Page 46 Neola Inverter DM13-01.01.12 en Defrosting action: For 9K, 12K models: Frequency F8 Compressor 4-way valve Outdoor fan Indoor fan Indoor fan breeze(10s) no longer than 10m For 18K, 24K models: XX = 60 s for 18K models XX = 90 s for 24K models Service manual https://splitsystema48.ru/instrukcii-po-ekspluatacii-kondicionerov.html...
  • Page 47 DM13-01.01.12en Neola Inverter 10.4.3.5 Evaporator coil temperature protection ----T2> TEH2℃, the compressor running frequency decreases to the lower level and runs for 20s. When the frequency decreases to F2 and the T2 is still over TEH2℃ for 3 minutes, the compressor will stop.
  • Page 48 Neola Inverter DM13-01.01.12 en 10.4.5.3 Low indoor room temperature protection In drying mode, if room temperature is lower than 10℃, the compressor will stop and not resume until room temperature exceeds 12℃. 10.4.5.4 Evaporator anti-freezing protection, condenser high temperature protection and outdoor unit frequency limit are active and the same as that in cooling mode.
  • Page 49 DM13-01.01.12en Neola Inverter 10.4.7.3 Timer off. The machine will turn off automatically when reaching the setting time. 10.4.7.4 Timer on/off. The machine will turn on automatically when reaching the setting “on” time, and then turn off automatically when reaching the setting “off” time. 10.4.7.5 Timer off/on.
  • Page 50 Neola Inverter DM13-01.01.12 en delay when power on. Other conditions, the compressor will have 3 minutes delay when restarts. 10.4.10 Louver Position Memory Function When starting 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 memorize the maximum angle of the louver.
  • Page 51: Troubleshooting

    DM13-01.01.12en Neola Inverter 11. Troubleshooting 11.1 Indoor Unit Error Display Display Operation lamp flash times Timer lamp Failure EEPROM error Indoor and outdoor communication error Zero crossing detection error Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short circuit Evaporator coil temperature sensor T2 open circuit or short circuit...
  • Page 52: Diagnosis And Solution

    Neola Inverter DM13-01.01.12 en 11.2 Diagnosis and Solution 11.2.1 EEPROM parameter error diagnosis and solution Shut off the power supply and turn on it 5s later The problem comes out again Is the EEPROM chip plugged in indoor PCB well? Correct the connection Replace the main PCB of indoor unit Service manual...
  • Page 53 DM13-01.01.12en Neola Inverter 11.2.2 Indoor / outdoor unit’s communication error Return to normal Maybe the AC has Turn off the power supply, after 1 minute, electromagnetic connect the power supply, and turn on interference. the unit. E1 after 8 munities Check the wiring between indoor and outdoor unit.
  • Page 54 Neola Inverter DM13-01.01.12 en 11.2.3 Fan speed has been out of control diagnosis Shut off the power supply and turn on it 5s later The unit does not work normally Turn off the unit, rotate the cross Disassemble the connection between fan.
  • Page 55 DM13-01.01.12en Neola Inverter 11.2.5 IGBT over-strong current protection diagnosis and solution Check whether the connections between outdoor PCB and IPM are good? Check whether the IPM is fixed to radiator Fastening the IPM to the radiator tightly The unit does not work normally Replace the compressor Replace the IPM 11.2.6 Over voltage or too low voltage protection diagnosis and solution...
  • Page 56 Neola Inverter DM13-01.01.12 en 11.2.8 Inverter compressor drive error diagnosis and solution Is the connection of compressor good? Is the wiring sequence right? The Reconnect and retry voltage range proper? Replace the outdoor PCB Replace inverter compressor. 11.2.9 Zero crossing detection error This is alarm signal when the main chip can’t detect over-zero signal.

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