Midea Outdoor Units - Technical Data and Dimensions
Technical Specifications
| Model | M2O-14N8 | M2O-18N8 | M3O-18N8 | M3O-21N8 |
| Code | 13911063 | 13911064 | 13902177 | 13911065 |
| Nominal cooling capacity | 4.10 kW | 5.28 kW | 5.28 kW | 6.15 kW |
| Nominal heating capacity | 4.39 kW | 5.57 kW | 5.57 kW | 6.59 kW |
| Nominal heating capacity at -7°C | 3.5 kW | 3.62 kW | 3.7 kW | 4.13 kW |
| Nominal cooling power consumption | 1.270 kW | 1.630 kW | 1.450 kW | 1.770 kW |
| Nominal heating power consumption | 1.200 kW | 1.500 kW | 1.380 kW | 1.750 kW |
| Nominal heating power consumption at -7°C | 1.620 kW | 1.490 kW | 1.455 kW | 1.900 kW |
| COP at -7°C | 3.19 | 3.2 | 2.6 | 3.1 |
| SEER - Energy rating | 6.8 - A++ | 6.6 - A++ | 6.8 - A++ | 6.5 - A++ |
| Interconnection cable | (3+T)x1.5 mm² | (3+T)x1.5 mm² | (3+T)x2.5 mm² | (3+T)x2.5 mm² |
| Number of connectable indoor units | 2 | 2 | 3 | 3 |
| Compressor type | Rotary | Rotary | Rotary | Rotary |
| Power supply | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz |
| Power cable | (2+T)x2.5 mm² | (2+T)x2.5 mm² | (2+T)x4 mm² | (2+T)x4 mm² |
| Width/height/depth | 805/554/330 mm | 805/554/330 mm | 805/554/330 mm | 890/673/342 mm |
| Net weight | 31.6 kg | 35.5 kg | 36.2 kg | 46.8 kg |
| Air flow rate | 2200 m³/h | 2200 m³/h | 2100 m³/h | 3000 m³/h |
| Sound pressure level | 57 dB(A) | 56 dB(A) | 57 dB(A) | 57.5 dB(A) |
| Sound power level | 66 dB(A) | 63 dB(A) | 64 dB(A) | 66 dB(A) |
| Refrigerant type | R-32 | R-32 | R-32 | R-32 |
| GWP | 675 | 675 | 675 | 675 |
| Factory charge | 0.9 kg | 1.25 kg | 1.5 kg | 1.4 kg |
| CO₂ equivalent tons | 0.61 t | 0.84 t | 1.01 t | 0.95 t |
| Gas pipe diameters | 2x 3/8" | 2x 3/8" | 3x 3/8" | 3x 3/8" |
| Liquid pipe diameters | 2x 1/4" | 2x 1/4" | 3x 1/4" | 3x 1/4" |
| Max. total/vertical pipe length | 40/15 m | 40/15 m | 60/15 m | 60/15 m |
| Outdoor temp. heating min./max. | -15/24 °C | -15/24 °C | -15/24 °C | -15/24 °C |
| Outdoor temp. cooling min./max. | -15/50 °C | -15/50 °C | -15/50 °C | -15/50 °C |
| Model | M3O-27N8 | M40-28N8 | M40-36N8 | M50-42N8 |
| Code | 13911066 | 13911067 | 13911068 | 13911069 |
| Nominal cooling capacity | 7.91 kW | 8.20 kW | 10.55 kW | 12.31 kW |
| Nominal heating capacity | 8.21 kW | 8.79 kW | 11.14 kW | 12.6 kW |
| Nominal heating capacity at -7°C | 6.52 kW | 5.81 kW | 7.33 kW | 8.54 kW |
| Nominal cooling power consumption | 2.450 kW | 2.500 kW | 3.265 kW | 3.800 kW |
| Nominal heating power consumption | 2.200 kW | 2.400 kW | 2.840 kW | 3.300 kW |
| Nominal heating power consumption at -7°C | 3.080 kW | 1.875 kW | 4.010 kW | 4.077 kW |
| COP at -7°C | 3.13 | 3.1 | 3.11 | 2.1 |
| SEER - Energy rating | 6.7 - A++ | 6.5 - A++ | 6.5 - A++ | 6.5 - A++ |
| Interconnection cable | (3+T)x2.5 mm² | (3+T)x2.5 mm² | (3+T)x2.5 mm² | (3+T)x2.5 mm² |
| Number of connectable indoor units | 4 | 3 | 4 | 5 |
| Compressor type | Rotary | Rotary | Rotary | Rotary |
| Power supply | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz | 220-240/1/50 V/ph/Hz |
| Power cable | (2+T)x4 mm² | (2+T)x4 mm² | (2+T)x6 mm² | (2+T)x6 mm² |
| Width/height/depth | 890/673/342 mm | 946/810/410 mm | 946/810/410 mm | 946/810/410 mm |
| Net weight | 53 kg | 62.1 kg | 68.8 kg | 74.10 kg |
| Air flow rate | 2700 m³/h | 3800 m³/h | 4000 m³/h | 3850 m³/h |
| Sound pressure level | 54 dB(A) | 61 dB(A) | 63 dB(A) | 61.5 dB(A) |
| Sound power level | 67 dB(A) | 69 dB(A) | 68 dB(A) | 70 dB(A) |
| Refrigerant type | R-32 | R-32 | R-32 | R-32 |
| GWP | 675 | 675 | 675 | 675 |
| Factory charge | 1.72 kg | 2.1 kg | 2.1 kg | 2.9 kg |
| CO₂ equivalent tons | 1.16 t | 1.42 t | 1.42 t | 1.96 t |
| Gas pipe diameters | 3x 3/8" | 3x 3/8" + 1x 1/2" | 3x 3/8" + 1x 1/2" | 4x 3/8" + 1x 1/2" |
| Liquid pipe diameters | 3x 1/4" | 4x 1/4" | 4x 1/4" | 5x 1/4" |
| Max. total/vertical pipe length | 60/15 m | 80/15 m | 80/15 m | 80/15 m |
| Outdoor temp. heating min./max. | -15/24 °C | -15/24 °C | -15/24 °C | -15/24 °C |
| Outdoor temp. cooling min./max. | -15/50 °C | -15/50 °C | -15/50 °C | -15/50 °C |
Note on Performance: Cooling and heating capacities and power consumption are rated under standard conditions. Actual operating conditions may vary based on installation location and usage.
Sound Pressure Level: Measured in an anechoic chamber at a distance of 1 meter from the unit.
Power Cable: The power cable is supplied for installations up to 10 meters. It must be sized specifically for each installation.
Additional Charge: The initial pre-charge for multi-system outdoor units is valid for the first 7.5 meters of liquid line. For longer distances, an additional charge of 0.012 kg/m is required for 1/4" liquid lines, and 0.024 kg/m for larger diameters.
Note: Please verify current refrigerant gas regulations before installing these units.
Dimensions
Diagram showing the dimensions of Midea outdoor units. The diagram includes labels for Width (W), Width 1 (W1), Width 2 (W2), Depth (D), Height (H), and various other measurements (A, B, C, H1, H2, A1, A2, R1, B2, B3).
A table provides specific dimensional data for different platforms (X1, X2, X3, X4, X6, D) corresponding to various outdoor unit models.
| Platform | W | W1 | W2 | D | H | A | B | C | H1 | H2 | A1 | A2 | R1 | B2 | B3 |
| X1 | 720 | 790 | 727 | 270 | 495 | 452 | 255 | 281 | 60 | 87 | 11.7 | 49 | 6 | 76.5 | 33 |
| X2 | 765 | 835 | 784 | 303 | 555 | 452 | 286 | 314 | 60 | 93 | 10 | 62 | 5 | 76 | 18 |
| X3 | 805 | 874 | 815 | 330 | 554 | 511 | 317 | 346 | 60 | 95 | 10 | 58 | 6.5 | 105 | 49 |
| X4 | 890 | 955 | 895 | 342 | 673 | 663 | 354 | 380 | 60 | 108 | 12 | 74 | 6 | 52 | 61 |
| X6 | 980 | 1073 | 980 | 415 | 975 | 616 | 397 | 440 | 60 | 114 | 12 | 76 | 6 | 111 | 95 |
| D | 946 | 1030 | 946 | 410 | 810 | 673 | 403 | 455 | 60 | 108 | 24 | 73 | 6 | 95 | 10 |
Outdoor Unit (ODU) Compatibility:
- M2O-14N8 and M2O-18N8 are compatible with Platform X3.
- M3O-18N8 and M3O-21N8 are compatible with Platform X4.
- M3O-27N8, M40-28N8, and M40-36N8 are compatible with Platform D.
- M50-42N8 is compatible with Platform B (note: Platform B is not detailed in the dimensions table above).
Documentation Links
- User Manual: [PDF link]
- Declaration of Conformity: [PDF link]
- Control Manual: [PDF link]
- ErP Information: [PDF link]
- Dimensions (DWG): [DWG link]
- Combination Table: [PDF link]
