Related Manuals for Midea Blanc ON-OFF Series
Summary of Contents for Midea Blanc ON-OFF Series
- Page 1 Библиотека СОК DM16-01.01.07en Blanc ON-OFF Series Service Manual 2016 MSMA1A-07HRN1 / MOAB02-07HN1 MSMA1A-09HRN1 / MOAB02-09HN1 MSMA1B-12HRN1 / MOBA01-12HN1 MSMA1C-18HRN1 / MOBA03-18HN1 MSMA1D-24HRN1 / MOCA02-24HN1...
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Page 2: Table Of Contents
Blanc On-off DM16-01.01.07en CONTENTS 1. Precaution ..............................3 1.1 Safety Precaution ........................3 1.2 Warning ............................3 2. Function ................................ 6 3. Specification ..............................7 4. Dimension ..............................11 4.1 Indoor Unit ..........................11 4.2 Outdoor Unit .......................... -
Page 3: Precaution
DM16-01.01.07en Blanc On-off 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 the unit, be sure to read this service manual at first. - Page 4 Blanc On-off DM16-01.01.07en 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 and electric shock. ...
- Page 5 DM16-01.01.07en Blanc On-off Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. ...
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Page 6: Function
Blanc On-off DM16-01.01.07en 2. Function Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units MSMA1A-07HRN1 MOAB02-07HN1 MSMA1A-09HRN1 MOAB02-09HN1 On-Off MSMA1B-12HRN1 MOBA01-12HN1 MSMA1C-18HRN1 MOBA03-18HN1 MSMA1D-24HRN1 MOCA02-24HN1 Service manual... -
Page 7: Specification
DM16-01.01.07en Blanc On-off 3. Specification Indoor model name MSMA1A-07HRN1 MSMA1A-09HRN1 MSMA1B-12HRN1 Outdoor model name MOAB02-07HN1 MOAB02-09HN1 MOBA01-12HN1 Ph-V-H Power supply 220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph Btu/h 7000 9000 12000 Capacity 2,05 2,64 3,52 Cooling Input 1096 Rated current 3,21 3,21... - Page 8 Blanc On-off DM16-01.01.07en f.Coil length x height x 595x78x23.2+595x117x2 510x253x23.2 510x253x23.2 width 3.2+595x78x23.2 g.Number of circuits Indoor air flow (Hi/Mi/Lo) m3/h 436/381/300 456/380/306 564/436/342 Indoor noise level (Hi/Mi/Lo) dB(A) 36.0/34/30 39/34/29 42/38/36 Dimension(W*D*H) 805x205x285 715*285*194 715*285*194 Indoor unit Packing (W*D*H) 765*270*345 765*270*345 870*285*360...
- Page 9 DM16-01.01.07en Blanc On-off Indoor model name MSMA1C-18HRN1 MSMA1D-24HRN1 Outdoor model name MOBA03-18HN1 MOCA02-24HN1 Power supply Ph-V-Hz 220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph Btu/h 18000 24000 Capacity 5,28 7,03 Cooling Input 1643 2503 Rated current 10.9 3,21 2,81 Btu/h 19000 26000 Capacity 5,57 7,62...
- Page 10 Blanc On-off DM16-01.01.07en YKT-48-6-206 Model YKT-75-6-200L Input Outdoor fan motor Capacitor Speed r/min a.Number of rows b.Tube pitch(a)x row pitch(b) 21x13.37 21x13.37 c.Fin spacing Outdoor coil d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium e.Tube outside dia.and type Φ7,innergroove tube Φ7,innergroove tube f.Coil length x height x width 755x504x26.74 740x630x13.37+760*630*13.37...
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Page 11: Dimension
DM16-01.01.07en Blanc On-off 4. Dimension 4.1 Indoor Unit Model 715 194 285 MSMA1A-07HRN1 715 194 285 MSMA1A-09HRN1 805 205 285 MSMA1B-12HRN1 957 233 302 MSMA1C-18HRN1 1040 235 327 MSMA1D-24HRN1 Service manual... - Page 12 Blanc On-off DM16-01.01.07en For MSMA1A-07HRN1, MSMA1A-09HRN1, Service manual...
- Page 13 DM16-01.01.07en Blanc On-off For MSMA1B-12HRN1, For MSMA1C-18HRN1, Service manual...
- Page 14 Blanc On-off DM16-01.01.07en For MSMA1D-24HRN1, Service manual...
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Page 15: Outdoor Unit
DM16-01.01.07en Blanc On-off 4.2 Outdoor Unit More than 30cm More than 60cm (Service space More than 30cm More than 60cm More than 200cm Service manual... - Page 16 Blanc On-off DM16-01.01.07en For MOAB02-07HN1, MOAB02-09HN1, Service manual...
- Page 17 DM16-01.01.07en Blanc On-off For MOBA01-12HN1, MOBA03-18HN1, 779 W3 487 W1 300 D 770 W 70 W2 25 B1 61.5 A2 12 A1 Service manual...
- Page 18 Blanc On-off DM16-01.01.07en For MOCA02-24HN1, Service manual...
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Page 19: Capacity Tables
DM16-01.01.07en Blanc On-off 5. Capacity tables MSMA1A-07HRN1 / MOAB02-07HN1 Cooling COOLING OUTDOOR TEMPERATURE DRY 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Indoor Conditions Total capacity kW 1,90 1,88 1,86 1,82 1,46 1,37 21ºC D Sensitive capacity kW 1,52 1,50 1,49 1,46 ... - Page 20 Blanc On-off DM16-01.01.07en MSMA1A-09HRN1 / MOAB02-09HN1 Cooling COOLING OUTDOOR TEMPERATURE DRY 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Indoor Conditions Total capacity kW 2,43 2,41 2,39 2,34 1,87 1,76 21ºC D Sensitive capacity kW 1,95 1,93 1,91 1,87 1,50 1,40 ...
- Page 21 DM16-01.01.07en Blanc On-off MSMA1B-12HRN1 / MOBA01-12HN1 Cooling 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Indoor Conditions Total capacity kW 3,25 3,22 3,19 3,12 2,50 2,34 21ºC D Sensitive capacity kW 2,60 2,57 2,55 2,50 2,00 1,87 15ºC W ...
- Page 22 Blanc On-off DM16-01.01.07en MSMA1C-18HRN1 / MOBA03-18HN1 Cooling COOLING OUTDOOR TEMPERATURE DRY 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Indoor Conditions Total capacity kW 4,88 4,83 4,78 4,69 3,75 3,52 21ºC D Sensitive capacity kW 3,90 3,86 3,83 3,75 3,00 2,81 ...
- Page 23 DM16-01.01.07en Blanc On-off MSMA1D-24HRN1 / MOCA02-24HN1 Cooling COOLING OUTDOOR TEMPERATURE DRY 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC Indoor Conditions Total capacity kW 6,51 6,44 6,38 6,26 5,01 4,69 21ºC D Sensitive capacity kW 5,21 5,16 5,11 5,01 4,00 3,75 ...
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Page 24: Refrigerant Cycle Diagram
Blanc On-off DM16-01.01.07en 6. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR... -
Page 25: Installation Details
DM16-01.01.07en Blanc On-off 7. Installation Details 7.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 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. -
Page 26: Pipe Length And The Elevation
Blanc On-off DM16-01.01.07en 7.3 Pipe length and the elevation The pipe length and refrigerant amount: Standard Max. Max. Additional Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) 3/8’’ 1/4’’ MSMAA-07HRN1-QC2+ MOAB02-07HN1-QC2 (Ф9.52) (Ф6.35) 3/8’’ 1/4’’ MSMAA-09HRN1-QC2+ MOAB02-09HN1-QC2 (Ф9.52) (Ф6.35) -
Page 27: Installation For The First Time
DM16-01.01.07en Blanc On-off 7.4 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 Blanc On-off DM16-01.01.07en 2. Air purging by 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. 3).
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Page 29: Adding The Refrigerant After Running The System For Many Years
DM16-01.01.07en Blanc On-off Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant). 3) Put the charging cylinder onto the electronic scale and record the weight. 4) Operate the air conditioner at the cooling mode. -
Page 30: Re-Installation While The Indoor Unit Need To Be Repaired
Blanc On-off DM16-01.01.07en 7.6 Re-installation while 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 caps and confirm that the valve stems are in the opened position. Be sure to use a hexagonal wrench to operate the valve stems. -
Page 31: Re-Installation While The Outdoor Unit Need To Be Repaired
DM16-01.01.07en Blanc On-off the 2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3 times. After purging the air, use a torque wrench to tighten the flare nut on the 2-way valve. 4). Check the gas leakage Check the flare connections for gas leakage. - Page 32 Blanc On-off DM16-01.01.07en 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. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. 2).
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Page 33: Wiring Diagram
DM16-01.01.07en Blanc On-off 8. Wiring Diagram 8.1 Indoor Unit MSMA1A-07HRN1, MSMA1A-09HRN1, MSMA1B-12HRN1, MSMA1C-18HRN1 Service manual... - Page 34 Blanc On-off DM16-01.01.07en MSMA1D-24HRN1, Service manual...
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Page 35: Outdoor Unit
DM16-01.01.07en Blanc On-off 8.2 Outdoor Unit MOAB02-07HN1, MOAB02-09HN1, MOBA01-12HN1, MOBA03-18HN1, Service manual... - Page 36 Blanc On-off DM16-01.01.07en MOCA02-24HN1 Service manual...
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Page 37: Operation Characteristics
DM16-01.01.07en Blanc On-off 9. Operation Characteristics Mode Cooling operation Heating operation Drying operation Temperature 17℃~32℃ 0℃~30℃ 10℃~32℃ Room temperature 18℃~43℃ -7℃~24℃ 11℃~43℃ Outdoor temperature CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally. -
Page 38: Electronic Function
Blanc On-off DM16-01.01.07en 10. Electronic function 10.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser T4: Outdoor ambient temperature T5: Compressor discharge temperature 10.2 Display function 10.2.1 Icon explanation on indoor display board. Digital display: Displays the temperature settings when the air conditioner is operational. - Page 39 DM16-01.01.07en Blanc On-off Dispalys ‘ ’ under 8℃ heating operation. WIFI control display (optional) Displays when the WIFI control feature is activated. (Not available when the unit does not have this function) NOTE: A guide on using the infrared remote is not included in this literature package. Service manual...
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Page 40: Main Protection
Blanc On-off DM16-01.01.07en 10.3 Main Protection 10.3.1 Time Delay at restart for compressor. Less than 1 minute delay for the 1 time start-up and 3 minutes delay for others. 10.3.2 Sensor protection at open circuit and breaking disconnection. 10.3.3 Zero crossing detection error protection If AC can not detect zero crossing signal for 4 minutes or the zero crossing signal time interval is not correct, the unit will stop and the LED will display the failure. - Page 41 DM16-01.01.07en Blanc On-off (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates the same as in cooling mode. (5) Auto fan: High Medium 10.4.2 Cooling Mode 10.4.2.1 Compressor running rules When indoor room temp.T1 is lower than setting value, the compressor and outdoor fan will shut off. 10.4.2.2 Outdoor fan running rules The On-off outdoor units have single fan speed.
- Page 42 Blanc On-off DM16-01.01.07en T1-Ts High Medium 10.4.2.4 Low evaporator coil temperature T2 protection When the evaporator coil temp.T2 keeps lower than setting value, the compressor and outdoor fan will shut off. 10.4.2.5 High condenser temperature T3 protection (only for MSMAD-24HRN1-QB8W) Compressor Off Compressor On When high condenser temp.
- Page 43 DM16-01.01.07en Blanc On-off 10.4.3 Heating Mode 10.4.3.1 Compressor running rules: When indoor room temp.T1 is higher than setting value the compressor and outdoor fan will shut off. 10.4.3.2 Outdoor fan running rules: The outdoor units have single fan speed. The outdoor fan will run following the compressor except when AC is in evaporator high temp.
- Page 44 Blanc On-off DM16-01.01.07en Condition of ending defrosting: If any one of the following items is satisfied, the defrosting will terminate and the machine will turn to normal heating mode. (1) The defrosting time is reached to the setting value. (2) The defrosting has been running for 3 minutes and T2≥TCDE1℃. (3) The defrosting has been running for 2 minutes, check the value of T2.
- Page 45 DM16-01.01.07en Blanc On-off If AC is off, it will run in auto mode when the timer on function is active. （2） After setting the mode, AC will run in auto mode if the compressor keeps not running for （3） certain time. 10.4.5 Drying mode 8.4.5.1 The compressor is cycled running with 10 minutes on and then 5 minutes off.
- Page 46 Blanc On-off DM16-01.01.07en 10.4.11 Follow me (optional) If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote controller, the buzzer will emit a sound and this indicates the follow me function is initiated. But when the indoor PCB receives signal which sent from remote controller every 3 minutes, the buzzer will not respond.
- Page 47 DM16-01.01.07en Blanc On-off will display the maximum value or minimum value. Service manual...
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Page 48: Troubleshooting
Blanc On-off DM16-01.01.07en 11. Troubleshooting 11.1 Indoor Unit Error Display Operation lamp Timer lamp Display LED STATUS ☆ 1 time EEPROM parameter error Indoor / outdoor units communication error(only for ☆ 2 times MSMAD-24HRN1-QB8W) ☆ 3 times Zero-crossing signal detection error ☆... -
Page 49: Trouble Shooting
DM16-01.01.07en Blanc On-off 11.2 Trouble shooting 11.2.1 EEPROM parameter error diagnosis and solution (E0) Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. - Page 50 Blanc On-off DM16-01.01.07en 11.2.2 Indoor / outdoor unit’s communication diagnosis and solution (E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions seconds. Supposed causes Wiring mistake ● Indoor or outdoor PCB faulty ●...
- Page 51 DM16-01.01.07en Blanc On-off 11.2.3 Zero crossing detection error diagnosis and solution (E2) Error Code Malfunction decision When PCB does not receive zero crossing signal feedback for 4 conditions minutes or the zero crossing signal time interval is abnormal. Supposed causes Connection mistake ●...
- Page 52 Blanc On-off DM16-01.01.07en 11.2.4 Fan speed has been out of control diagnosis and solution (E3) Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
- Page 53 DM16-01.01.07en Blanc On-off Index1: 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 100V(208~240V power supply)or 50V(115V power supply), the PCB must has problems and need to be replaced.
- Page 54 Blanc On-off DM16-01.01.07en 11.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E4) E4/E5/F2 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
- Page 55 DM16-01.01.07en Blanc On-off 11.2.6 Indoor PCB /Display board communication error (E7) Error Code Malfunction decision Indoor PCB does not receive feedback from Display board. conditions Supposed causes Wiring mistake ● PCB faulty ● Display board malfunction ● Trouble shooting: Service manual...
- Page 56 Blanc On-off DM16-01.01.07en 11.2.7 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ＜Tcool－2℃...
- Page 57 DM16-01.01.07en Blanc On-off Main parts check 1.Temperature sensor checking Disconnect 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) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
- Page 58 Blanc On-off DM16-01.01.07en Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (°C--K) °C °F °C °F °C °F °C °F K Ohm K Ohm K Ohm K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731...
- Page 59 DM16-01.01.07en Blanc On-off Appendix 2 Temperature Sensor Resistance Value Table for T5 (°C --K) °C °F °C °F °C °F °C °F K Ohm K Ohm K Ohm K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98...