Midea MDV-V105W/DVN1 Owner's Manual
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Midea MDV-V105W/DVN1 Owner's Manual

R410a all dc inverter mini vrf
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Contents

Part 1
General Information .................................................................. 1
Part 2
Outdoor Units ............................................................................ 9
Part 3
Installation ............................................................................... 49
Part 4
Troubleshooting............................................................61
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without
notices and without incurring obligations.

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Summary of Contents for Midea MDV-V105W/DVN1

  • Page 1 Contents Part 1 General Information ..............1 Part 2 Outdoor Units ................9 Part 3 Installation ................49 Part 4 Troubleshooting……………………………………………………61 Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without incurring obligations.

  • Page 3: Part 1 General Information

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF Part 1 General Information 1. Product Lineup ..................2 2. Nomenclature ..................3 3. Features....................4 4. Indoor Units Lineup ................8 General Information...

  • Page 4: Product Lineup

    1. Product Lineup Outdoor Units 10.5kW Model 12~16kW Model Dimension body Net/Gross weight Model name Power supply Inch (mm) lbs(kg) Width:42-21/64 (1075) MDV-V105W/DVN1 Height: 38-1/32(966) 171.8/187.4(78/85) 208-230V-1ph ~60Hz Depth: 15-19/32(396) MDV-V120W/DVN1 209.4/233.7(95/106) 208-230V-1ph ~60Hz Width:35-7/14 (900) MDV-V140W/DVN1 Height: 52-1/4(1327) 209.4/233.7(95/106)

  • Page 5: Nomenclature

    Refrigerant N1:R410A Power supply V: 208~230V-60Hz-1ph D: 208~230V, 60Hz, 3ph C: 380~415V, 60Hz, 3ph Inverter Type D: DC Inverter W: Outdoor unit Cooling Capacity (X100W)* Inverter Midea VRF *Note: the actual cooling capacity please refers to the nameplate. General Information...

  • Page 6: Features

    7 zones with one outdoor unit. Such as villa, restaurant, school etc. Midea offers a variety of indoor unit, more than 100 models of 15 types. Capacity ranges are from 1.8kW to 16kW. It is full compliance with residential and light commercial place. Our systems can operate up to 130% of capacity which allows any system to be designed to the customers’...
  • Page 7 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 3.2 High efficiency DC inverter compressor All DC inverter Mini VRF adopt highly intelligent inverter-driven compressor. This advanced technology enables the output of the outdoor unit to be modulated by the real heat load demands. This advanced system ensures precise temperature regulation and highly efficient energy usage, making a significant contribution to the limiting the impact on the environment.
  • Page 8 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 3.6 Wide operation temperature range No matter in extremely cold winter when outdoor temperature gets as low as -15° C or in hot summer when temperature is up to 43° C, the Mini VRF system will keep stable performance.
  • Page 9 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 3.10 Auto address setting function The addresses of indoor units can be set automatically by outdoor unit. Wired controller and wireless controller can enquire and modify the address of each indoor unit. Outdoor unit can distribute address for indoor unit automatically...

  • Page 10: Indoor Units Lineup

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 4. Indoor Units Lineup Cassette type Compact Four-way One-way cassette Two-way cassette four-way cassette Capacity Capacity cassette (×100W) (Btu/h) 6140 ● ● ● ● 7500 9600 ● ● ● ● ● 12300 ● ●...

  • Page 11: Table Of Contents

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF Part 2 Outdoor Units 1. Specifications ..................10 2. Dimensions ..................13 3. Service Space ..................14 4. Piping Diagrams ................. 15 5. Wiring Diagrams ................. 16 6. Capacity Tables .................. 19 7. Electric Characteristics ..............51 8.

  • Page 12: Specifications

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 1. Specifications Sale Model MDV-V105W/DVN1 MDV-V120W/DVN1 220095103400 220095101900 Code Power supply V-Ph-Hz 208-230V-1Ph~60Hz 208-230V-1Ph~60Hz 10.5 Capacity Cooling Btu/h 35800 40900 Input 2.68 3.25 11.5 13.2 Capacity Heating Btu/h 39200 45000 Input 3.47 Max. input consumption...
  • Page 13 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF Sale Model MDV-V105W/DVN1 MDV-V120W/DVN1 220095103400 220095101900 Code Outdoor sound level(sound pressure level ) dB(A) Dimension 42-21/64 x38-1/32 x15-19/32 35-7/14x52-1/4x15-3/4 (W x H x D) in.(mm) (1075x966x396) (900x1327x400) Packing 44-3/32 x43-5/16 x17-1/8 40-9/16x57-5/16x17-1/8 Outdoor unit (W x H x D) in.(mm)
  • Page 14 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V140W/DVN1 MDV-V160W/DVN1 Model 220095101890 220095102980 Code Capacitor Outdoor fan motor Speed r/min Material ASG20 ASG20 Type Axial fan Axial fan Outdoor fan Diameter in.(mm) 20(508) 20(508) Height in.(mm) 6-11/16(170) 6-11/16(170) Number of rows Tube pitch(a)x row pitch(b) in.(mm)

  • Page 15: Dimensions

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 2. Dimensions 38-31/32(990) 42-21/64(1075) 24-9/16(624) 10.5kW 12kW/14kW/16kW Unit:in.(mm) Specifications & Performance...

  • Page 16: Part 3 Installation

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 3. Service Space Single unit installation (Wall or obstacle) Air inlet >11-13/16 Maintain (300) channel Air inlet >23-5/8 (600) Air outlet Parallel connect the two units or above 11-13/16(300) > >23-5/8 (600) >78-3/4(2000) Parallel connect the front with rear sides >78-3/4 >118-1/18...

  • Page 17: Piping Diagrams

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 4. Piping Diagrams Electronic expansion Evaporator valve High pressure Electronic switch expansion valve Condensor High pressure liquid accumulator 4-way valve Oil seperator Oil return capilary Compressor Low pressure Low pressure switch liquid accumulator can Oil separator: used to separate oil from high pressure &...

  • Page 18: Wiring Diagrams

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 5. Wiring Diagrams (For 10.5kW) Specifications & Performance...
  • Page 19 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF For 12/14/16kW Specifications & Performance...

  • Page 20: Field Wiring

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 6. Field Wiring Specifications & Performance...

  • Page 21: Capacity Tables

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7. Capacity Tables MDV-V105W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 9.22 10.99 1.34 12.75 1.43 13.24 1.49 13.87 1.53 14.21 1.67...
  • Page 22 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V105W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 0.92 1.15 10.8 1.37 11.55 1.47 12.3 1.59 13.24 1.65 13.54 28.4 0.94 1.17...
  • Page 23 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V105W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 6.37 0.74 7.61 0.89 8.85 1.05 9.45 1.15 10.05 1.22 11.29 1.41 12.53 1.61...
  • Page 24 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V105W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 4.95 0.59 5.92 0.69 6.86 0.78 7.35 0.83 7.84 0.89 8.78 1.02 9.75 1.17...
  • Page 25 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V105W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 3.54 0.43 4.24 4.91 0.58 5.25 5.59 0.64 6.26 0.72 6.98 0.78 28.4 3.54...
  • Page 26 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V105W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 8.18 2.29 8.14 2.43 2.56 2.62 8.07 2.69 8.07...
  • Page 27 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V105W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 8.07 2.82 8.03 2.93 7.99 3.03 7.99 3.08 7.99...
  • Page 28 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V105W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 7.94 3.36 3.43 7.76 3.45 3.31 6.99 3.04 10.76...
  • Page 29 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V120W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 10.54 1.33 12.56 1.62 14.57 1.74 15.13 1.81 15.86 1.86 16.24 2.02 16.65 2.04 28.4 10.54...
  • Page 30 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V120W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 8.91 1.12 10.63 1.39 12.34 1.66 13.2 1.79 14.06 1.92 15.13 15.47 2.06 28.4 8.91 1.14...
  • Page 31 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V120W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 7.29 1.08 10.11 1.28 10.8 1.39 11.49 1.48 12.9 14.31 1.95 28.4 7.29 0.91 1.09 10.11...
  • Page 32 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V120W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 6.47 1.74 7.71 2.04 10.08 2.57 2.86 10.24 3.08 11.49 3.65 12.78 28.4 5.66 0.71 6.77...
  • Page 33 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V120W/DVN1 Cooling Indoor temperature(° FDB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 4.05 0.53 4.84 0.61 5.61 0.73 6.39 0.77 7.16 0.88 7.97 0.95 28.4 4.05 0.53 4.84...
  • Page 34 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V120W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 9.39 3.14 9.35 3.32 3.59 9.26 3.68 9.26 3.86 10.76 9.76...
  • Page 35 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V120W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 9.26 3.87 9.22 4.01 9.18 4.15 9.18 4.22 9.18 4.28 9.14...
  • Page 36 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V120W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 9.11 9.07 9.07 4.79 8.91 4.72 8.61 4.53 8.03 4.16 10.76...
  • Page 37 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V140W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 12.3 1.94 14.65 2.36 2.54 17.65 2.64 18.5 2.71 18.95 2.95 19.43 2.97 28.4 12.3...
  • Page 38 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V140W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 10.4 1.63 12.4 2.03 14.4 2.43 15.4 2.61 16.4 17.65 2.91 18.05 28.4 10.4 1.67...
  • Page 39 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V140W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 1.32 10.15 1.58 11.8 1.86 12.6 2.03 13.4 2.16 15.05 2.49 16.7 2.85 28.4 1.33...
  • Page 40 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V140W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 1.04 1.21 9.15 1.38 1.47 10.45 1.57 11.7 2.07 28.4 1.04 1.22 9.15 1.38 10.45...
  • Page 41 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V140W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:87.3,WB:71.6 DB:89.6,WB:75.2 DB:82.7,WB:68 temperature (Capacity (° F DB) index) 4.73 0.77 5.65 0.89 6.55 1.02 1.07 7.45 1.13 8.35 1.28 1.38 28.4 4.73 0.77...
  • Page 42 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V140W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 10.95 3.92 10.9 4.15 10.85 4.37 10.85 4.48 10.8 10.8 4.82...
  • Page 43 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V140W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 10.8 4.83 10.76 5.01 10.71 5.18 10.71 5.27 10.71 5.35 10.66...
  • Page 44 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V140W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 10.63 5.75 10.58 5.87 10.58 5.99 10.39 10.05 5.66 9.37 5.19...
  • Page 45 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V160W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 13.62 1.85 16.22 2.26 18.82 2.42 19.54 2.52 20.48 2.59 20.98 2.81 21.51 2.83 28.4...
  • Page 46 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V160W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 11.51 1.56 13.73 1.94 15.94 2.31 17.05 2.48 18.16 2.67 19.54 2.78 19.99 2.86 28.4...
  • Page 47 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V160W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 9.41 1.26 11.24 1.51 13.06 1.78 13.95 1.94 14.84 2.06 16.66 2.37 18.49 2.72 28.4...
  • Page 48 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V160W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 7.31 0.99 8.75 1.16 10.13 1.31 10.85 1.41 11.57 12.95 1.72 14.39 1.97 28.4 7.31...
  • Page 49 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V160W/DVN1 Cooling Indoor temperature(° F DB/WB) Combination Outdoor DB:69.4,WB:57.2 DB:73.9,WB:60.8 DB:78.4,WB:64.4 DB:80.6,WB:66.2 DB:82.7,WB:68 DB:87.3,WB:71.6 DB:89.6,WB:75.2 temperature (Capacity (° F DB) index) 5.23 0.73 6.26 0.85 7.25 0.97 7.75 1.02 8.25 1.07 9.24 1.22 10.3 1.32 28.4...
  • Page 50 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V160W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 12.09 3.77 12.04 3.99 11.98 4.21 11.98 4.31 11.93 4.42 11.93...
  • Page 51 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF MDV-V160W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 11.93 4.65 11.87 4.81 11.82 4.98 11.82 5.07 11.82 5.15 11.77...
  • Page 52 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 MDV-V160W/DVN1 Heating Indoor temperature(° F WB) Combination Outdoor Air 60.8 64.4 69.8 71.6 75.2 temperature(° F) (Capacity index) ° F DB ° F WB 7.34 11.74 5.53 11.68 5.64 11.68 5.76 11.47 5.67 11.09 5.44 10.34...

  • Page 53: Electric Characteristics

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 8. Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA MDV-V105W/DVN1 208~230V 187V 253V 0.17 MDV-V120W/DVN1 208~230V 187V 253V 13.5 MDV-V140W/DVN1 208~230V 187V 253V 13.5 MDV-V160W/DVN1 208~230V 187V 253V 16.1 2*0.085...

  • Page 54: Operation Limits

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 10. Operation Limits Cooling Heating Indoor temperature ( ℃ WB) Indoor temperature ( ℃ DB) Note: 1. These figures assume the following operating conditions: Equivalent piping length: 7.5m Level difference: 0m 2. If the system is running in cooling mode, when the ambient temperature is lower than -15 C (5 F) or higher than 43 C(109.4...
  • Page 55 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF Part 3 Installation 1. Precautions ..................54 2. Accessories ..................55 3. Outdoor unit installation ..............55 4. Piping installation ................57 5. Electric Wiring Installations ............... 61 6. Outdoor Unit Wiring ................63 7.
  • Page 56 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 1. Precautions  Ensure that all Local, National and International regulations are satisfied.  Read this “PRECAUTIONS” carefully before Installation.  The precautions describe below including the important Items regarding safety.  Observe them without fail. ...

  • Page 57: Outdoor Unit Installation

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 2. Accessories Please check whether the following fittings are of full scope. If there are some spare fittings, please restore them carefully. NAME SHAPE QUANTITY 1. Outdoor unit installation manual 2. Outdoor unit owner’s manual INSTALLATION FITTINGS 3.
  • Page 58 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09  Make concrete foundation according to the specifications of the outdoor units.  Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind.

  • Page 59: Piping Installation

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 3.3 Water Outlet Four condensed water outlets on the chassis for selection display as the follow figure: Outlet for power and connecting pipes Reserve water outlet (Need to knock open) Reserve water outlet Water Outlet (With rubber stopper) While installing the outdoor unit, pay attention to the installation place and the drainage pattern;...

  • Page 60: Refrigerant Pipe Selection

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 The first connecting method Outdoor unit Pipe Length (IDU to the nearest branch) Maximum pipe equivalent length The first line Branch Pipe Pipe Length (from the first branch to the furthest IDU) Indoor Unit The second connecting method Outdoor unit Pipe Length (IDU to the nearest branch)
  • Page 61 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF The second connecting method Outdoor Unit(Take Model 14kW for example) (28) intdoor Units (28) (28) The first line pipe branch (28) (28) (22) Pipe definition Pipe connecting position Code The pipe between outdoor units to the Main pipe first branch of indoor unit.
  • Page 62 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 Table4: Outdoor unit pipe connection Piping side Outdoor unit pipe connection (mm) MODEL Gas Side Liquid Side Φ5/8(Φ15.9) Φ3/8(Φ9.53) 10.5kW Φ5/8(Φ15.9) Φ3/8(Φ9.53) 12kW Φ5/8(Φ15.9) Φ3/8(Φ9.53) 14kW Φ3/4(Φ19.1) Φ3/8(Φ9.53) 16kW Outdoor Unit Maximum Quantity of Total Capacity of Indoor unit (kW) Indoor unit...
  • Page 63 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 4.8 Leak detection Use soap water or leak detector to check every joint whether leaks or not. Note: A is low pressure side stop valve. B is high pressure side stop valve. C and D are connecting pipes interface of indoor and outdoor units. Check point of outdoor unit Check point of indoor unit 4.9 Heat Insulation...
  • Page 64 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 5. 2 Selection of wiring 1. The selection of wiring area shall in accordance with the requirements below: 1) Voltage loss of wire shall meet the requirement of terminal voltage for normal operation and startup. 2) The wiring current-carrying capacity determined by installed method and environment is not less than the largest current of unit.

  • Page 65: Outdoor Unit Wiring

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 5.4.2 Indoor/Outdoor unit signal wire wiring Note: 1) Set refrigerant piping system, signal wires between indoor-indoor unit, and that between outdoor-outdoor units into one system. 2) Please do not put the signal wire and power wire in the same wire tube; keep distance between the two tubes. (Current capacity of power supply: less than 10A--300mm, less than 50A--500mm.) 6.

  • Page 66: Test Running

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 NOTE The air-conditioners can connect with Central Control Monitor (CCM). Before operation, please wiring correctly and set system. 7. Test Running Operate according to “key points for test running” on the electric control box cover. CAUTION ...
  • Page 67 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF Part 4 Troubleshooting 1. PCB ports instructions ............... 66 2. PCB parts instructions ............... 68 3. Function setting dials witches instructions ........70 4. LED on PCB instructions ..............71 5. PCB Introduction ................. 72 6.
  • Page 68 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 PCB ports instructions 10.5 kW 5 6 7 8 9 10 PCB ports instruction Content Port voltage 208-230V 1 CN27 PCB power supply output port 2 CN33 EXV download output port The first pin on the left: DC12V The other four pins: in dynamic change 3 CN32 Online Programmable Port...
  • Page 69 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 12~16 kW PCB ports instruction Content Port voltage 208-230V 1 CN48 AC Power Input 208-230V 2 CN24 Load output port 208-230V 3 CN42 Load output port(single way valve) 208-230V 4 CN26 Load output port 208-230V 5 CN25 Load output port(4-way valve)
  • Page 70 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 2. PCB parts instructions 10.5 kW SW1: Forced LED digital cooling tube display button SW2: Query button Function setting dial switch SW2 query instructions Content Note Frequency will display when running, quantities of indoor unit Normal display will display when standby.
  • Page 71 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF If there is no malfunction or protection code, it will display The last malfunction or protection code “nn”. Display “--” ---- 12~16 kW SW1: Forced cooling button SW2: Query button LED digital Function setting tube display dial switch SW-1 query instructions...
  • Page 72 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 Voltage AD value Actual value T2 average temperature Actual value Total quantities of the indoor units Actual value The quantities of the operating indoor units Actual value If there is no fault or protection code it will be display “nn The last fault or protection code Display “--”...
  • Page 73 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 4. LED on PCB instructions The lamps on the 10.5kW, refers to the following picture: LED 1 (Red) LED 2(Green) IR341 chip The lamps on the 12~16kW, refers to the following picture: LED 1 (Red) LED 2(Green) LED1: Malfunction indicator lamp of inverter module.
  • Page 74 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 5. PCB Introduction 10.5 kW PFC Module Filter Board Main PCB Drive Board IPM Module 12~16kW IPM Module Drive Board Main PCB Filter Board PFC Module Troubleshooting...

  • Page 75: Error Code Table

    MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 6. Error code table Error code Content Note Communication malfunction between IR341 and main control 10.5 kW board 12~16 kW All models Communication malfunctions between the indoor chip and outdoor chip. All models Pipe temperature T3&...

  • Page 76: Troubleshooting

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7. Troubleshooting 7.1 H0/E3: Communication malfunctions between IR341 and main chip on the main PCB. (H0 is for 10.5kW, E3 is for 12~16kW.) IR341 chip: it is used for inverter compressor drive. 0537 chip: it is used for control the communication between indoor unit and outdoor unit, and the communication between outdoors.
  • Page 77 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.2 E2: Communication malfunction between indoor chip and outdoor chip.(for all models) LED displays E2 Communication malfunctions between indoor unit chip and outdoor unit chip. Check whether the indoor unit is power on. Plug the indoor unit in.
  • Page 78 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 Press the button for 5 seconds: If the “running” and “warning” lights are normally on, that means the address code is 9=(8＋1) If the lights are blink, the address code should plus 16, so the address code is 25=16＋(8＋1) Press the button for 10 seconds: If the “timer”...
  • Page 79 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF sensor, find that T4 thermo-bulb is earth-continuity, and further discover that the thermal cable of T4 sensor is punched by bolt, as follows: After being reconnected, the T4 sensor is worn out and system becomes normal connected with sheet metal 7.4 E5: Voltage protection malfunction (for all models)
  • Page 80 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.5 E6//E8/Eb: DC Fan Malfunction (E6 is for all models, Eb is for 10.5kW, E8 is for 12~16kW) If the system displays twice E6 in 10 minutes, the system will stop and display E8/Eb. When the system displays E8/Eb, the system can resume only by restarting the machine.
  • Page 81 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.6 E7: Discharge Temperature Sensor Malfunction (only for 10.5kW). displays Discharge sensor malfunction. Check whether discharge temperature sensor’s head is inside the sleeve or its wiring is connected to the main PCB Connect again. properly.
  • Page 82 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.7 E9/E0: EEPROM malfunction (E9 is for 10.5kW, E0 is for 12~16kW) The malfunction may be caused by two reasons: 1) The EEPROM is not inserted well; 2) Outdoor main board is broken. LED display E9/E0 EEPROM malfunction Check whether the EEPROM is inserted well.
  • Page 83 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.8 EA/E7: Fan error in A region last for more than 5 minutes in heating mode. (EA is for 10.5kW, E7 is for 12~16kW) LED displays EA/E7 System faulty that T3 pipe temperature exceeds 27 degrees for more than 5 minutes when heating mode.
  • Page 84 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.9 P1: High pressure protection (for all models) displays High pressure protection Whether the wiring is correct. Connect again. Whether the wire body is broken. Short-circuit high pressure switch. Check whether the Replace the high pressure system can operate normally.
  • Page 85 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.10 P2: Low pressure protection (for all models) When the pressure is lower than 0.05MPa, the system will display P2 protection, the ODU in standby. When the pressure is higher than 0.15MPa, P2 disappears and resumes normal operation. displays Low pressure protection Whether wiring connection between low pressure switch and...
  • Page 86 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.11 P3: Compressor current protection (for all models) It will protect when input current is more than 30A. It will recover when input current is less than 30A. It will recover automatically. LED displays P3 Input current protection Check whether the input current of the power wire is more than 30A.
  • Page 87 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.12 P4: Compressor discharged temperature protection (for all models) When the discharged temperature of the compressor is higher than 115° C, the unit will stop running. When the discharged temperature of the compressor is lower than 90° C , the unit resumes normal operation automatically.
  • Page 88 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.13 P5: Condenser high temperature protection (for all models) When condenser temperature is higher than 62 degrees for 3 seconds, the unit will stop operating. When pipe temperature outside is lower than 52 degrees, the unit will resume operate. LED displays P5 Condenser T3 high temperature protection Check whether condenser temperature is higher than...
  • Page 89 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.14 P6: IPM Module protection The following explanation is for 10.5kW LED displays P6 IPM module protection Adjust to the right range. Then check Check whether the input power is whether the system Check whether P-N voltage on the IPM module correct.
  • Page 90 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 P6: Module protection P6 code can display on digital tube automatically. L0~L9 these error codes will display on digital tube only through check button. L0~L9 is only display on the 10.5kW but not on 12~16kW Check module and L0: module protection compressor...
  • Page 91 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF DC generatrix check Direction of the current in DC supply wire is running through the inductor should be the same as the direction of arrow marked on the inductor Check the voltage of DC generatrix, the normal value should be 296 to 324V. If the value is less than 296V, go to next step.
  • Page 92 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.14.1 L0/L8/L9 troubleshooting Step 1: Replace the modular with correctly wire connection and start the system, if system is still malfunction, then go to step2 to check the compressor. Step 2: Take out the compressor from the malfunction system, short-circuit the suction and the discharge, vacuum dry and charge 0.3kg~0.4kg R410A, and then connect the U,V,W terminals to control box B which is took apart from normal system.
  • Page 93 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.14.2 L1/L4 troubleshooting Step 1: Check the DC voltage between P and N terminal, the normal value should be 510V~580V, if the voltage is lower than 510V, go to step 2. Step 2: Check whether the wires of rectifier circuit are loose or not. If wires are loosen, fasten the wires. If wires are OK, replace the PCB.
  • Page 94 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-09 7.15 PE/P7 malfunction: Evaporator T2 high temperature protection (PE is for 10.5kW, P7 is for 12~16kW) When the middle average temperature of the evaporator is higher than 63 degrees for 50 seconds, the unit will stop operating.
  • Page 95 MCAC-VTSM-2014-09 R410A All DC Inverter Mini VRF 7.16 P8: Typhoon protection (for all models) displays Typhoon protection When air conditioner is standby or in malfunction Belongs to normal protection stopping status, check if there is strong air blows the fan phenomenon.

This manual is also suitable for:

Mdv-v120w/dvn1Mdv-v140w/dvn1Mdv-v160w/dvn1

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