Midea MFA-76C(H)RN1 Technical Manual Download Page 108

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Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501

107

Timer lamp flashing at 5Hz, Operation lamp flashing at 5Hz

Defrosting lamp flashing at 5Hz

For these series products, if the condenser temperature sensor malfunction is displayed, it is

enough to check whether wiring has problem. If the wiring is correct, the PCB should be

replaced.

Operation lamp and timer lamp flashing at 5Hz

11.5 Floor-standing type indoor unit malfunction and protection codes

Display content

Fault or protection meaning

EEprom error

T1, room temperature sensor, fault of open circuit, short circuit.

T2, pipe temperature sensor, fault of open circuit, short circuit.

Under cooling mode, T2 is on low temperature protection.

Under heating mode, T2 is on high temperature protection.

Summary of Contents for MFA-76C(H)RN1

Page 1: ...change specification or designs at any time without notices and without incurring obligations MTA 76C H RN1 MTA 96C H RN1 MTA 120C H RN1 MTA 150CRN1 MHB 76C H RN1 MHB 96C H RN1 MFA 76C H RN1 MFA 96C H...

Page 2: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 1 Content Part 1 General information 2 Part 2 Indoor Unit 6 Part 3 Outdoor Unit 58 Part 4 Installation 66 Part 5 Controller 117...

Page 3: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 2 Part 1 General information 1 Model Names of Indoor Outdoor Units 3 2 External Appearance 4 3 Nomenclature 5...

Page 4: ...pressure duct type MHB 76HRN1 MOV 76HN1 C 380 415V 3Ph 50Hz 22 75 1 MHB 96HRN1 MOV 96HN1 C 28 95 6 1 2 Model names of units with cooling only Type Indoor unit Outdoor unit Cooling capacity Model Powe...

Page 5: ...p discharge Split Type Series 50Hz 4 2 External Appearance 2 1 Indoor units MTA 76C H RN1 MFA 96C H RN1 MTA 120C H RN1 MTA 150CRN1 MFA 76C H RN1 MFA 96C H RN1 MFAT 120CRN1 2 2 Outdoor unit MOV 76C H N...

Page 6: ...ling capacity 120 1 000Btu h Ambient type T or Omit Tropical type Series number Indoor unit type T Medium static pressure duct type H High static pressure duct type F Floor standing type Midea 3 2 Out...

Page 7: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 6 Part 2 Indoor Unit Duct Type 7 Floor standing Type 38...

Page 8: ...TSM 201501 7 Duct Type 1 Features 8 2 Specifications 9 3 Dimensions Unit mm 15 4 Service Space 16 5 Refrigerant circuit 17 6 Wiring Diagrams 18 7 Capacity Table 21 8 Static Pressure Curve 33 9 Electri...

Page 9: ...den in the ceiling unit installation is not hindered by the location of lighting fixtures or room structure Air inlet and outlet flanges are standard and easy for duct connection Multi diffusers from...

Page 10: ...put Hi med lo W 540 450 400 540 450 400 Capacitor 12 F 450V 12 F 450V Speed Hi med lo r min 860 790 720 860 790 720 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 3 3 Fin spa...

Page 11: ...ed lo W 690 580 500 690 580 500 Capacitor 12 F 450V 12 F 450V Speed Hi med lo r min 1 020 910 800 1 020 910 800 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 4 4 Fin spacing...

Page 12: ...put Hi med lo W 570 475 430 570 475 430 Capacitor 15 F 450V 15 F 450V Speed Hi med lo r min 930 850 770 930 850 770 Coil Type Copper tube and aluminum fin Tube size mm 7 7 No of rows 4 4 Fin spacing m...

Page 13: ...720 605 510 Capacitor 15 F 450V Speed Hi med lo r min 1 040 930 825 Coil Type Copper tube and aluminum fin Tube size mm 7 No of rows 4 Fin spacing mm 1 5 Tube pitch a row pitch b mm 21 13 37 Length he...

Page 14: ...lo W 690 580 500 690 580 500 Capacitor 12 F 450V 12 F 450V Speed Hi med lo r min 1 020 910 800 1 020 910 800 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 3 3 Fin spacing mm...

Page 15: ...d lo W 990 830 670 990 830 670 Capacitor 12 F 450V 12 F 450V Speed Hi med lo r min 1 130 990 840 1 130 990 840 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 4 4 Fin spacing...

Page 16: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 15 3 Dimensions Unit mm MTA 76C H RN1 MTA 96C H RN1 MHB 76C H RN1 MHB 96C H RN1 Pipe side view MTA 120C H RN1 MTA 150CRN1...

Page 17: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 16 Pipe side view 4 Service Space Top view...

Page 18: ...Top discharge Split Type Series 50Hz MCAC UTSM 201501 17 5 Refrigerant circuit Heat pump MTA 76HRN1 MTA 96HRN1 MTA 120HRN1 MHB 76HRN1 MHB 96HRN1 Cooling only MTA 76CRN1 MTA 96CRN1 MTA 120CRN1 MHB 76C...

Page 19: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 18 Cooling only MTA 150CRN1 6 Wiring Diagrams MTA 76HRN1 MTA 96HRN1 MHB 76HRN1 MHB 96HRN1...

Page 20: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 19 MTA 120HRN1 MTA 76CRN1 MTA 96CRN1 MHB 76CRN1 MHB 96CRN1...

Page 21: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 20 MTA 120CRN1 MTA 150CRN1...

Page 22: ...6 80 23 5 19 7 7 00 24 9 15 2 7 13 20 5 20 1 7 23 22 2 18 7 7 46 23 6 14 4 7 60 32 2 22 8 21 7 6 81 23 9 22 2 7 01 25 4 18 9 7 15 20 9 20 9 7 25 22 7 21 0 7 47 24 0 17 9 7 62 2500 23 9 21 1 18 3 7 00...

Page 23: ...13 2 8 57 17 1 16 8 8 37 18 6 15 6 8 63 19 8 12 1 8 88 32 2 19 0 19 0 8 20 20 7 19 1 8 44 22 0 16 4 8 59 17 4 17 4 8 39 19 0 17 6 8 65 20 2 15 1 8 90 2500 23 9 18 4 16 9 7 84 20 0 12 5 8 23 21 2 5 5...

Page 24: ...8 12 6 9 09 18 9 8 3 9 34 29 4 16 8 16 5 8 75 18 1 15 2 9 11 19 2 11 7 9 36 32 2 17 1 17 1 8 77 18 5 17 1 9 14 19 6 14 6 9 39 2500 23 9 16 6 15 3 8 95 17 9 11 2 9 31 19 0 4 9 9 56 26 7 17 0 17 0 8 97...

Page 25: ...24 9 8 94 31 0 18 9 9 07 26 6 26 1 9 17 28 4 23 8 9 40 29 7 18 1 9 54 32 2 29 2 27 9 8 76 30 2 27 9 8 96 31 6 23 6 9 10 27 2 27 2 9 20 28 9 26 8 9 43 30 3 22 6 9 57 3000 23 9 26 9 23 4 8 94 28 9 18 1...

Page 26: ...28 22 0 21 6 11 08 23 5 19 8 11 34 24 7 15 1 11 59 32 2 24 0 24 0 10 91 25 6 23 7 11 16 27 0 20 1 11 31 22 4 22 4 11 11 24 0 22 2 11 37 25 2 18 8 11 62 3000 23 9 23 1 21 2 11 07 24 7 15 4 11 46 25 9...

Page 27: ...2 01 23 5 10 3 12 26 29 4 21 5 21 1 11 68 22 8 19 2 12 04 23 9 14 6 12 29 32 2 21 9 21 9 11 71 23 3 21 5 12 07 24 4 18 2 12 32 3000 23 9 21 1 19 4 11 86 22 4 14 0 12 22 23 5 6 1 12 47 26 7 21 6 21 6 1...

Page 28: ...38 0 23 2 11 58 33 7 33 0 11 68 35 4 29 7 11 91 36 7 22 4 12 05 32 2 36 6 34 9 11 28 37 4 34 6 11 48 38 8 29 0 11 61 34 3 34 3 11 71 36 1 33 4 11 94 37 5 28 0 12 08 3750 23 9 33 5 29 2 11 43 35 7 22...

Page 29: ...98 28 5 28 0 12 78 30 1 25 3 13 04 31 3 19 1 13 29 32 2 30 7 30 7 12 62 32 3 29 9 12 86 33 7 25 1 13 01 29 1 29 1 12 81 30 7 28 4 13 08 31 9 23 8 13 33 3750 23 9 29 4 27 0 12 23 31 0 19 4 12 62 32 2...

Page 30: ...4 61 30 1 13 2 14 86 29 4 28 3 27 7 14 29 29 6 24 9 14 65 30 7 18 7 14 90 32 2 28 8 28 8 14 32 30 2 27 9 14 68 31 3 23 4 14 93 3750 23 9 27 6 25 4 14 45 28 9 18 1 14 81 30 0 7 8 15 06 26 7 28 2 28 2 1...

Page 31: ...9 0 14 81 43 1 42 3 14 91 44 9 37 7 15 03 46 2 28 2 15 28 32 2 46 6 44 4 14 51 47 0 43 5 14 71 48 5 36 2 14 84 44 0 44 0 14 94 45 8 42 4 15 05 47 1 35 2 15 32 4500 23 9 42 5 37 0 14 64 44 8 28 0 14 97...

Page 32: ...4 36 9 36 2 17 54 38 5 32 3 17 80 39 7 24 2 18 06 32 2 39 2 39 2 17 40 40 9 37 9 17 64 42 2 31 5 17 79 37 7 37 7 17 59 39 2 36 3 17 85 40 5 30 2 18 10 4500 23 9 37 5 34 4 16 97 39 0 24 4 17 36 40 3 10...

Page 33: ...9 04 38 2 16 7 19 29 29 4 36 5 35 8 18 73 37 8 31 8 19 09 38 9 23 7 19 34 32 2 37 2 37 2 18 77 38 5 35 7 19 14 39 7 29 6 19 39 4500 23 9 35 5 32 6 18 87 36 8 23 0 19 23 37 9 9 8 19 48 26 7 36 3 36 3 1...

Page 34: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 33 8 Static Pressure Curve MTA 76C H RN1 MTA 96C H RN1...

Page 35: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 34 MTA 120C H RN1 MTA 150CRN1...

Page 36: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 35 MHB 76C H RN1 MHB 96C H RN1...

Page 37: ...RN1 50 220 240V 198V 254V 9 1 15 1 605 7 28 MTA 120HRN1 50 220 240V 198V 254V 11 19 20 2 03 8 95 MTA 120CRN1 50 220 240V 198V 254V 11 19 20 2 03 8 95 MTA 150CRN1 50 220 240V 198V 254V 16 5 20 2 7 13 2...

Page 38: ...120HRN1 63 dB A MTA 120CRN1 63 dB A MTA 150CRN1 79 dB A MHB 76HRN1 58 dB A MHB 76CRN1 58 dB A MHB 96HRN1 61 dB A MHB 96CRN1 61 dB A 11 Accessories Name Qty Purpose Owner manual 1 Installation manual...

Page 39: ...plit Type Series 50Hz 38 Floor standing Type 1 Features 39 2 Specifications 40 3 Dimensions 43 4 Service Space 43 5 Refrigerant Circuit 44 6 Wiring Diagrams 45 7 Capacity Tables 47 8 Electric Characte...

Page 40: ...enance High efficient scroll compressor with thermal protectors to prevent motor overheating High performance heat exchanger The heat exchanger fins are coated with anti corrosive and hydrophilic laye...

Page 41: ...Capacitor 25 F 450V 25 F 450V Motor speed hi med lo rpm 870 760 670 870 760 670 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 2 2 Tube pitch a row pitch b mm 25 4 44 25 4 4...

Page 42: ...tor 25 F 450V 25 F 450V Motor speed hi med lo rpm 870 760 670 870 760 670 Coil Type Copper tube and aluminum fin Tube size mm 9 52 9 52 No of rows 3 3 Tube pitch a row pitch b mm 25 4 44 25 4 44 Fin s...

Page 43: ...eed hi med lo rpm 890 790 700 Coil Type Copper tube and aluminum fin Tube size mm 9 52 No of rows 3 Tube pitch a row pitch b mm 25 4 22 Fin spacing mm 1 6 Coil W H mm 982 711 2 Number of circuits 14 C...

Page 44: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 43 3 Dimensions 4 Service Space...

Page 45: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 44 5 Refrigerant Circuit Heat pump MFA 76HRN1 MFA 96HRN1 Cooling only MFA 96CRN1 MFA 96CRN1 MFAT 120CRN1...

Page 46: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 45 6 Wiring Diagrams MFA 76HRN1 MFA 96HRN1...

Page 47: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 46 MFA 76CRN1 MFA 96CRN1 MFAT 120CRN1...

Page 48: ...8 22 7 13 1 6 88 24 1 5 7 7 01 19 9 16 7 7 11 21 6 12 5 7 34 22 8 5 4 7 48 26 7 21 4 19 8 6 70 23 2 16 5 6 90 24 6 10 8 7 03 20 3 18 8 7 13 22 0 15 6 7 36 23 3 10 2 7 50 29 4 22 1 21 7 6 72 23 7 19 9...

Page 49: ...21 0 4 9 8 66 16 6 14 0 8 46 18 1 10 5 8 72 19 3 4 6 8 97 26 7 18 5 17 1 8 29 20 1 14 2 8 53 21 4 9 4 8 68 17 0 15 7 8 48 18 5 13 1 8 74 19 7 8 6 8 99 29 4 18 8 18 5 8 31 20 5 17 2 8 55 21 8 13 3 8 7...

Page 50: ...15 8 9 26 18 6 13 6 9 51 2130 23 9 15 7 13 2 9 03 17 0 9 8 9 39 18 1 4 3 9 64 26 7 16 1 14 9 9 05 17 4 12 3 9 41 18 5 8 1 9 66 29 4 16 4 16 1 9 07 17 7 14 9 9 43 18 8 11 5 9 68 32 2 16 7 16 7 9 10 18...

Page 51: ...5 9 11 30 0 7 1 9 24 25 8 21 7 9 34 27 5 15 9 9 48 28 7 6 8 9 71 26 7 27 4 25 4 8 93 29 2 20 7 9 13 30 6 13 4 9 26 26 3 24 4 9 36 28 0 19 9 9 51 29 3 12 9 9 73 29 4 28 4 27 8 8 95 29 8 25 0 9 15 31 2...

Page 52: ...10 99 21 4 18 0 10 79 22 9 13 2 11 05 24 1 5 7 11 30 26 7 23 4 21 6 10 63 25 0 17 7 10 87 26 3 11 5 11 02 21 9 20 2 10 82 23 4 16 6 11 08 24 6 10 8 11 33 29 4 23 8 23 4 10 66 25 4 21 4 10 90 26 8 16 3...

Page 53: ...07 24 3 17 8 12 32 2600 23 9 21 1 17 8 11 82 22 4 12 9 12 18 23 5 5 5 12 43 26 7 21 6 20 0 11 85 22 9 16 2 12 21 24 0 10 5 12 46 29 4 22 0 21 6 11 88 23 3 19 6 12 24 24 4 14 9 12 49 32 2 22 4 22 4 11...

Page 54: ...9 11 94 33 85 22 56 12 54 35 54 23 69 13 16 26 70 34 53 26 56 10 73 36 26 27 89 11 26 38 07 29 28 11 82 33 52 25 79 12 42 35 20 27 08 13 04 36 96 28 43 13 69 29 40 35 57 29 64 11 05 37 34 31 12 11 60...

Page 55: ...4 18 27 75 18 50 14 88 29 14 19 43 15 63 26 70 28 31 21 78 12 74 29 73 22 87 13 37 31 22 24 01 14 04 27 49 21 15 14 74 28 86 22 20 15 48 30 31 23 31 16 25 29 40 29 16 24 30 13 12 30 62 25 52 13 77 32...

Page 56: ...7 90 3100 23 90 25 66 17 11 16 91 26 43 17 62 17 76 28 29 18 86 18 65 26 70 26 69 20 53 16 95 27 49 21 15 17 80 29 42 22 63 18 69 29 40 27 49 22 91 17 00 28 31 23 60 17 85 30 31 25 26 18 74 32 20 28 3...

Page 57: ...FA 76CRN1 50 220 240V 198V 254V 3 5 15 0 59 2 773 MFA 96HRN1 50 220 240V 198V 254V 3 5 15 0 59 2 773 MFA 96CRN1 50 220 240V 198V 254V 3 5 15 0 59 2 773 MFAT 120CRN1 50 220 240V 198V 254V 4 65 15 0 8 3...

Page 58: ...1501 57 10 Accessories Name Qty Shape Usage Owner s manual 1 Installation manual 1 Remote controller manual 1 Water connective pipe 1 Connect to water drainage pipe Remote controller 1 Remote controll...

Page 59: ...SM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 58 Part 3 Outdoor Unit 1 Specifications 59 2 Dimension 62 3 Service Space 62 4 Wiring Diagrams 63 5 Electric Characteristics 65 6 Sound Le...

Page 60: ...650 710 4 3 fan blades Coil Type Copper tube and aluminum fin Tube size mm 7 94 7 94 No of rows 2 2 Fin space mm 1 4 1 4 Tube pitch a row pitch b mm 22 19 05 22 19 05 Coil W H mm 2 177 880 2 177 880 N...

Page 61: ...180 1 230 Lo 790 870 4 3 fan blades Coil Type Copper tube and aluminum fin Tube size mm 7 7 No of rows 3 3 Fin space mm 1 3 1 3 Tube pitch a row pitch b mm 21 13 37 21 13 37 Coil W H mm 2 179 882 2 1...

Page 62: ...870 4 3 fan blades Coil Type Copper tube and aluminum fin Tube size mm 7 7 No of rows 3 3 Fin space mm 1 3 1 3 Tube pitch a row pitch b mm 21 13 37 21 13 37 Coil W H mm 1 380 882 1 380 882 1 380 882 1...

Page 63: ...mm MOV 120C H N1 C Unit mm 3 Service Space MOVA 76H D MOVA 76C D MOVA 96H MOVA 96C Note 1 In case any obstacles exist above the outdoor unit such obstacles must be 2000mm above the outdoor unit 2 If...

Page 64: ...k RT3A Pipe temp sensor T1 Transformer FAN1 2 Outdoor fan CT1 Current detector RT4 Room temp sensor SW1 3 Switch CAP1 2 Fan capacitance XT1 2 4 way terminal XS1 5 XP1 5 Connectors C1 Filter capacitor...

Page 65: ...e temp sensor T1 Transformer FAN1 2 Outdoor fan CT1 Current detector RT4 Room temp sensor SW1 3 Switch CAP1 2 Fan capacitance XT1 2 4 way terminal XS1 5 XP1 5 Connectors C1 3 Filter capacitor S V 4 wa...

Page 66: ...26 MOV 96CN1 C 50 380 415V 342V 438V 20 21 23 8 110 20 1 373 6 26 MOV 120HN1 C 50 380 400V 342V 440V 25 28 6 30 147 21 4 1 373 6 26 MOV 120CN1 C 50 380 400V 342V 440V 25 28 6 30 147 21 4 1 373 6 26 Re...

Page 67: ...or Units 68 3 Installation of Floor standing Type Indoor Units 73 4 Installation of Outdoor Units 75 5 Connection of Refrigerant Pipe 77 6 Heat Insulation of Refrigerant Pipe 85 7 Electric Connection...

Page 68: ...ide where the air contains much salt Hot ring area where corrosive gases exist e g sulfide gas Factories where the supply voltage fluctuates seriously Inside a car or cabin Place like kitchen where oi...

Page 69: ...tallation and maintance The inspection orifice should be enough larger to repair and maintenance the unit Use 10 or bigger screws The screw material is high quality carbon steel whose surface is zinc...

Page 70: ...across the beams and set pendant bolts When in the new concrete roughcast environment please use embedded bolts embedded pulling plugs and stick harness On steel bar have some holes to hang pipe and e...

Page 71: ...ilter at an easy to maintain place such as intake pipe If without the filter the duct will gether on the air heat exchanger and lead to fault and water leak of the air conditioner In order to suppress...

Page 72: ...de Unit mm MHA1 150C H R MHA1 192C H R View of air outlet side Unit mm View of air inlet side Unit mm All pipelines must be connected closely and soundly without leak of air The pipelines must be adia...

Page 73: ...t pipe and the drain pipe in addition to apply the general heat insulation materials Enough heat insulation materials should also be applied to the refrigerant joint and the pipe joint The drain of wa...

Page 74: ...oper place for installation since the height of the unit casing is very high The right and left sides as weel as rear can be fixed it is necessary to select the unit fixed measure as per to the actual...

Page 75: ...ds of the drain pipe should not exceed 2 Try to avoid bends to prevent trash accumulation Charge water into water collection tray after the drain water pipe is installed check whether the water can be...

Page 76: ...gure Install the power supply at the side of the outdoor unit MOV 76C H N1 C MOV 96C H N1 C MOV 120C H N1 C Use 4 steel ropes to hoist the unit and move it into the site In order to prevent scratch an...

Page 77: ...H N1 C MOV 120C H N1 C As the following shown picture leave an interval between the multi outdoor unit Snow protection facilities must be installed in the snowfall areas In order to prevent influence...

Page 78: ...0Hz MCAC UTSM 201501 77 5 Connection of Refrigerant Pipe Schematic diagram of connection between indoor unit and outdoor unit MTA 76C H RN1 MOV 76C H N1 C MTA 96C H RN1 MOV 96C H N1 C MTA 120C H RN1 M...

Page 79: ...stem Trash and foreign matters may come into the pipe in the process of installing the refrigerant pipe Be sure to blow them off with nitrogen before connecting the pipe to the outdoor units Use high...

Page 80: ...an inert atmosphere is provided The flow of dry nitrogen should continue until the joint has cooled Always use a pressure regulator and safety valve to insure that only low pressure dry nitrogen is in...

Page 81: ...por connections at the indoor unit Braze the liquid line to the indoor liquid connection Nitrogen should be flowing through the evaporator coil Slide the plastic cap away from the vapor connection at...

Page 82: ...y brazed connections while the system is under pressure Personal injury could result After the pipes between the indoor unit and the outdoor unit are connected replenish compressed nitrogen to perform...

Page 83: ...uare head cover of valves A and B completely Use refrigerant tank to expel air Screw up the pipe nuts at A B C and D completely Loosen and remove the square head cover and maintenance orifice nut of v...

Page 84: ...pletion of vacuuming tighten the low pressure handle of the manifold valve completely and stop the vacuum pump Keep extracting air for over 15 minutes Check whether the multi meter points at 1 0 10Pa...

Page 85: ...for 1m pipe length 9 52mm 0 060kg 12 7mm 0 115kg Note Please check and record the replenished quantity of the air conditioner Refrigerant leak precautions This air conditioner uses refrigerant R410A...

Page 86: ...entilation device Perform ventilation often In case frequent ventilation is impossible please install the leakage detection alarm device linked with the mechanical ventilation device 6 Heat Insulation...

Page 87: ...terials use vinyl resin tape to seal refrigerant pipe and drainage pipe to prevent water leak 7 Electric Connection 7 1 Caution Use special power supply for the air conditioner Design power supplies s...

Page 88: ...wer 220 240V 1Ph 50Hz 380 415V 3Ph 50Hz Switch capacity of the main power supply Fuse 20A 8A 20A 12A 60A 40A Indoor unit power cable 3 2 5mm 2 Includes grounded wire Outdoor unit power cable Single un...

Page 89: ...V 76C H N1 C Power 220 240V 1Ph 50Hz 380 415V 3Ph 50Hz Switch capacity of the main power supply Fuse 20A 8A 60A 40A Indoor unit power cable 3 2 5mm 2 Includes grounded wire Outdoor unit power cable 5...

Page 90: ...mm 2 Connective wire of indoor and outdoor unit 4 1 0mm 2 Cooling heating 2 1 0mm 2 Cooling only Wired controller connective wire 5 0 5mm 2 Shield wire Floor standing type Type Indoor unit Outdoor uni...

Page 91: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 90 7 3 Schematic diagram Single outdoor unit Double outdoor units...

Page 92: ...the phase sequence is reversed the compressor will not start Meanwhile the fault indicator of the outdoor electric control board will light up After shifting the phase sequence power on the unit until...

Page 93: ...the dial on PCB board of outdoor unit as follows otherwise incorrect adjustment may cause malfunction Signal wire of indoor unit connects to outdoor main unit only and the control command to outdoor...

Page 94: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 93 MFA 76HRN1 MFA 96HRN1 MFA 76CRN1 MFA 96CRN1 MFAT 120CRN1...

Page 95: ...Midea R410A T3 Top discharge Split Type Series 50Hz 94 8 Duct Design Scheme Examples of construction and ventilation pipeline design scheme Flowering hidden series Construction and ventilation pipeli...

Page 96: ...fire resistant materials Those materials other materials Those materials other shall not be applied 3 The heat insulation material must be glass wool 4 1 Install the unit at the air inlet so that the...

Page 97: ...ng only model 9 1 The lengthwise adjustable model which diffuses air at a 360 angle 2 With the change of the cooling heating air flow the horizontal and vertical distance of the fan can be adjusted ap...

Page 98: ...3 Use ventilation pipe specific tapes instead of ordinary adhesive tapes In order to ensure the installation quality and durability it is necessary to use the auxiliary materials of standard specific...

Page 99: ...le of indoor unit to check whether any penetration or leak of water occurs especially at the drain stopper 10 Operation of Floor standing Type Indoor Unit 10 1 Operation panel and display 10 2 Buttons...

Page 100: ...the temperature will decrease by 1 C per second until which fall to the minimum 17 C The buzzer will not buzz at this time FAN SPEED For select air flow speed Low speed medium speed high speed and au...

Page 101: ...speed wind the last one stand for high speed wind SWIND Swing icon Press the key of SWING which icon is light up while close off this mode the icon will light off For temperature display the shows te...

Page 102: ...e indoor relative humidity is too high and the unit runs in the cooling mode The indoor unit is installed in a place where there is much oil mist or dust If the internal stain of the indoor unit is he...

Page 103: ...to the set temperature the air conditioner will shut down the compressor automatically and shifts to the air supply status After the room temperature rises the compressor will restart The action of th...

Page 104: ...y Symptom Possible causes Way of handing The air conditioner sends air out but cannot provide cool air at all The setting temperature is improper The setting temperature is lower than the room s durin...

Page 105: ...be shifted Check whether the mode marked the screen of controller is AUTO When the auto mode is selected the indoor fan speed will be in automatically running and cannot be adjusted Check whether the...

Page 106: ...appear No sound of receiving signal Symptom Check item Cause Pressing the ON OFF button the air conditioner does not raise the receiving tone When the ON OFF button is pressed check whether the signal...

Page 107: ...utral line Timer lamp flashing at 5Hz T1 room temperature sensor fault of open circuit short circuit Operation lamp flashing at 5Hz T2 pipe temperature sensor fault of open circuit short circuit Defro...

Page 108: ...as problem If the wiring is correct the PCB should be replaced Operation lamp and timer lamp flashing at 5Hz 11 5 Floor standing type indoor unit malfunction and protection codes Display content Fault...

Page 109: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 108 E0 E1 E2 P1...

Page 110: ...ion Communication failure Outdoor condenser temp sensor error Outdoor ambient temp sensor error Protection of low pressure Protection of high pressure Protection of over current Protection of condense...

Page 111: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 110 Phase sequence or lack of phase Communication error...

Page 112: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 111 Condenser temperature sensor error Ambient temperature sensor error Hi temperature protection of compressor discharger...

Page 113: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 112 System low pressure protection...

Page 114: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 113 System high pressure protection Current overload protection...

Page 115: ...in remote controller and then cut off the power supply When the main power switch is turned on a certain extent of electric power is consumed even if the air conditioner does not run Turning off the...

Page 116: ...door unit The edge of some sheet metal assemblies and the fin of the condenser are very sharp Incorrect operation may cause harm Be cautious when cleaning them up Check the air inlet and outlet of the...

Page 117: ...or panel Check and maintain the ventilating slot once every half years wash and maintain with corresponding disinfection shall process once Every two year are recommended The filter can expel dust and...

Page 118: ...T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 117 Part 5 Controller 1 Wireless Remote Controller Standard 118 2 Wired Controller KJR 29B Optional 124 3 Centralized Controller MD CCM03 A Op...

Page 119: ...erating Mode Cooling Heating Dry Fan and Auto 2 Timer Setting Function in 24 hours 3 Indoor Setting Temperature Range 17 C 30 C 4 LCD Liquid Crystal Display of all functions 5 Night Light Function Opt...

Page 120: ...e current settings To release settings push again 7 CANCEL Button Push this button to cancel the TIMER settings 8 TIMER Button This button is used to preset the time ON start to operate and the time O...

Page 121: ...set it will display the TIMER ON If only the turning off time of operation is set it will display the TIMER OFF If both operations are set it will show TIMER ON and TIMER OFF which indicates you have...

Page 122: ...DE select button to select AUTO In the multi system to avoid mode conflict auto mode is taken as cool mode Push the TEMP button to set the desired room temperature The most comfortable temperature set...

Page 123: ...stop this unit operation Notes Due to the difference of the set temperature of the unit and the actual indoor temperature the Air Conditioner when in DRY mode will automatically operate many times wi...

Page 124: ...to cancel any former settings Push the TIMER button and the remote controller will show the last set time for START operation and the signal h will be shown on the display panel You are now ready to...

Page 125: ...rom EMI Electro Magnetic Interference supplied by other household appliances 2 Wired Controller KJR 29B Optional KJR 29B BK E 2 1 Wired controller specifications Model KJR 29B BK E Power Supply Voltag...

Page 126: ...ive the swing controlling instruction For the indoor unit with swinging function you can directly use the wireless remote controller to control swinging through the display panel of the indoor unit or...

Page 127: ...Temperature setting Under AUTO COOL DRY HEAT modes press the temperature setting buttons and to set the temperature the adjusting range is 17 C 30 C or 62 F 88 F Notes The setting temperature cannot b...

Page 128: ...into the clock setting status The hour position of the clock will flash and can press and to adjust the hour value After finishing the hour setting press left button or right button to switch to minut...

Page 129: ...fault setting value of the reminding function is 2 500 hours and it can change to be 5 000 hours or 10 000 hours The setting methods refer to the part of wired controller initial parameter setting 11...

Page 130: ...in fire The specified cables shall be applied in the wiring No external force may be applied to the terminal Otherwise wire cut and heating may occur and result in fire Don t place the wired controlle...

Page 131: ...oller Please refer to indoor unit installation manual for connecting between wired controller and indoor unit Circuit of wired controller is low voltage circuit Never connect it with a standard 220V o...

Page 132: ...signal receiving board Make sure the sequence of 4 terminals A B C and D should correspond to the wire sequence of signal switching wires A B C and D If the embedded 4 core shielding wire cannot go t...

Page 133: ...ction otherwise will damage the back cover Use three M4 20 screws to directly install the back cover on the wall Use two M4 25 screws to install the back cover on the 86 electrician box and use one M4...

Page 134: ...wired controller back to the bottom cover Over fasten the screw will lead to deformation of back cover Neaten the wires of the wired controller There are three positions of signal wire outlet around t...

Page 135: ...ront cover Avoid clamping the communication switching wire during installation Correct install the back cover and firmly buckle the front cover and back over otherwise will make the front cover drop o...

Page 136: ...to exit the parameters setting The parameter setting table First code Function Second code 0 1 2 3 4 0 Cooling only Heat pump selection Heat pump Default Coolin g only 1 Indoor unit communication addr...

Page 137: ...erformance Features 1 System composition centralized control 2 Keywords and general function description 3 Technical indices and requirements 4 Indoor unit working status display 5 Locking remote cont...

Page 138: ...ll be locked If the keys are locked pressing any key will be ineffective except unlock operation In the unified setting page press the key and the LOCK key concurrently to lock all air conditioner mod...

Page 139: ...In the setting mode every time when press the key if it is in the single operation mode the air conditioner corresponding to the last row will be selected If it is in the global operation mode no effe...

Page 140: ...every time when pressing the key if it is in single operation mode the air conditioner of previous in service address number will be selected If it is in the global operation mode no effect will resu...

Page 141: ...tion In other display mode press this key to enter the setting mode By default it is single machine setting and the first in service air conditioner is displayed 12 FAN In setting operation mode press...

Page 142: ...f no mode is selected currently and the air conditioner is powered off or it is in other display page currently and the default startup mode is cooling high speed fan air set temperature 24 C swing fu...

Page 143: ...centralized controller can communicate with a maximum of 64 air conditioners to make up an air conditioner LAN and implement centralized monitoring for the air conditioners in the network The central...

Page 144: ...centralized controller is in the main page display status and displays the first page and searches the in service air conditioners in the network Once the search is finished the centralized controlle...

Page 145: ...lized controller is memorized after power failure of the centralized controller and will not vanish after the power supply is restored unless the command of unlocking is received Mode locking function...

Page 146: ...yed in graphics Otherwise no data is displayed In normal operation of the centralized controller the periodical cycle module communicates with the network interface module and the data is displayed dy...

Page 147: ...quid crystal matrix display description The liquid crystal matrix is composed of 4 16 grids and each grid is composed of two blocks of different sizes The matrix includes horizontal coordinates 00 15...

Page 148: ...r big and small dots in the matrix are luminous It indicates all other air conditioners are in the network and powered on The address of the air conditioner is sum of the coordinates For example the a...

Page 149: ...oling high speed air supply swing on indoor temperature 28 C setting temperature 22 C and cooling In the matrix only the big black dots from 08 00 to 15 00 are luminous It indicates the air conditione...

Page 150: ...ror E6 Zero crossing detection error E5 T3 or T4 temperature sensor fault E4 T2B sensor fault E3 T2A sensor fault E2 T1 sensor fault E1 Communication fault E0 Phase order error or phase loss Protectio...

Page 151: ...h is named as MD NIM01 1 The installation of network interface module Outlook of MD NIM01 The first green lighter Ready indicator When the module and controller is connected rightly the lighter will b...

Page 152: ...e main PCB board of indoor unit through the signal wire which is as the attachment of the module Fix the network interface module on the wall near the indoor unit And set the different address of the...

Page 153: ...MCAC UTSM 201501 Midea R410A T3 Top discharge Split Type Series 50Hz 152 According to size of the hole in controller body fix the controller on the place as needed Unit mm...

Page 154: ...Midea R410A T3 Top discharge Split Type Series 50Hz MCAC UTSM 201501 153 3 The wire connection...

Page 155: ...e Series 50Hz 154 4 System wiring instruction Wiring diagram of building network air conditioning system Wiring diagram with good communication effect Wiring diagram with poor communication effect not...

Page 156: ...155 System wiring diagram of centralized monitoring and indoor unit of air conditioner Both of the following wiring modes of centralized monitor and indoor unit are applicable Quantity of indoor units...

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Midea MFA-76C(H)RN1, Technical Manual

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