Midea Mini VRF MDV-V105W/DN1 Technical & Service Manual
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Midea Mini VRF MDV-V105W/DN1 Technical & Service Manual

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Technical Service Manual
Mini VRF
Model:
1 phase, 220-240V, 50Hz
MDV-V80W/DN1
MDV-V105W/DN1
MDV-V120W/DN1
MDV-V140W/DN1
MDV-V160W/DN1(B)

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Summary of Contents for Midea Mini VRF MDV-V105W/DN1

  • Page 1 Technical Service Manual Mini VRF Model: 1 phase, 220-240V, 50Hz MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 MDV-V140W/DN1 MDV-V160W/DN1(B)
  • Page 2 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Contents Part 1 General Information ................. 1 Part 2 Specifications & Performance ............... 10 Part 3 Installation ....................63 Part 4 Troubleshooting ..................77...
  • Page 3 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10...
  • Page 4 MCAC-VTSM-2016-10 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 5: Part 1 General Information

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 1. Product Lineup Outdoor Units 80/105 Model 120~160 Model Model name Dimension body(mm) Net/Gross weight (kg) Power supply Width:1075 MDV-V80W/DN1 Height:966 62/67 220~240V-1ph 50Hz Depth:336 Width:1075 MDV-V105W/DN1 Height: 966 74/81 220~240V-1ph 50Hz Depth:336 Width:900 MDV-V120W/DN1 Height:1327...

  • Page 6: Nomenclature

    2. Nomenclature M D V - V 105 W / D N1 Refrigerant type N1:R410A Inverter Type D: DC Inverter W: Outdoor unit Cooling Capacity (×100W)* Inverter System Midea *Note: the actual cooling capacity please refer to the nameplate. General Information...

  • Page 7: Features

    7 zones with one outdoor unit. Such as villa, restaurant, school etc. Midea offers a variety indoor unit, about 100 models of 10 types. Capacity ranges are from 1.5kW to 16 kW. 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 and applications needs.
  • Page 8 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 3.2 High efficient DC inverter compressor All DC inverter Mini VRF adopts 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 9 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 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 10 MCAC-VTSM-2016-10 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 11: Indoor Units Lineup

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 4. Indoor Units Lineup Cassette unit One-way cassette Two-way cassette Compact four-way cassette Four-way cassette Capacity (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
  • Page 12 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Indoor units lineup Floor-standing/Ceiling & Floor/Console Floor standing (exposed) Floor standing (concealed) Ceiling & floor console Capacity (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...

  • Page 13: Table Of Contents

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 Part 2 Specifications & Performance 1. Specifications ....................11 2. Dimensions ....................14 3. Service Space ....................15 4. Piping Diagrams ................... 16 5. Wiring Diagrams ..................17 6. Field Wiring ....................19 7.

  • Page 14: Specifications

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 1. Specifications MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 Sale Model Power supply V-Ph-Hz 220-240V~50Hz 220-240V~50Hz 220-240V~50Hz Capacity 10.5 12.3 Cooling Input 2.05 2.68 3.25 kW/ kW 3.90 3.92 3.78 Capacity 11.5 13.2 Heating Input 2.24 2.90 3.47 kW/ kW 4.02...
  • Page 15 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 Sale Model MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 Outdoor air flow 5500 5500 6000 Outdoor sound level(sound pressure level ) dB(A) Indoor unit connectable (Total Capacity) 45%~130% 45%~130% 45%~130% Max. quantity of indoor unit Dimension 1075×966×396 1075×966×396 900×1327×400 (W×H×D)
  • Page 16 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V140W/DN1 MDV-V160W/DN1(B) Sale Model Insulation class IP23 IP23 Safe class 2*100 2*100 Input Outdoor Fan 2*85 2*85 Output motor 2*0.9 2*0.9 Rated current Speed r/min ASG20 ASG20 Material Axial fan Axial fan Type Outdoor fan Diameter Height...

  • Page 17: Dimensions

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 2. Dimensions 80/105 model 120~160 model Unit:mm MODEL 80/105 990 624 354 336 366 1075 120/140/160 900 600 348 320 1327 Specifications & Performance...

  • Page 18: Service Space

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 3. Service Space Unit: mm Single unit installation (Wall or obstacle) Air inlet >300 Maintain channel Air inlet >600 Air outlet Parallel connect the two units or above >300 >600 >2000 Parallel connect the front with rear sides >2000 >500 >3000...

  • Page 19: Piping Diagrams

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 4. Piping Diagrams Electronic expansion Evaporator valve High pressure Electronic switch expansion valve Condensor High pressure liquid accumulator Oil seperator Oil return capilary Compressor Low pressure Low pressure switch liquid accumulator can Oil separator: used to separate oil from high pressure & temperature gas refrigerant, which is pumped out from compressor.

  • Page 20: Wiring Diagrams

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 5. Wiring Diagrams 80/105 model Specifications & Performance...
  • Page 21 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 120~160 model Specifications & Performance...

  • Page 22: Field Wiring

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 6. Field Wiring Specifications & Performance...

  • Page 23: Capacity Tables

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7. Capacity Tables MDV-V80W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 7.03 0.84 8.37 1.02 9.71 10.09 1.14 10.57 1.17 10.83 1.28 11.1...
  • Page 24 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V80W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 5.94 0.71 7.09 0.88 8.23 1.05 1.13 9.37 1.21 10.09 1.26 10.31 5.94 0.72 7.09...
  • Page 25 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V80W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 4.86 0.57 0.68 6.74 0.81 0.88 7.66 0.94 1.08 9.54 1.23 4.86 0.57 0.69 6.74...
  • Page 26 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V80W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 3.77 0.45 4.51 0.53 5.23 0.59 0.64 5.97 0.68 6.69 0.78 7.43 3.77 0.45 4.51...
  • Page 27 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V80W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 0.33 3.23 0.38 3.74 0.44 0.46 4.26 0.49 4.77 0.55 5.31 0.33 3.23 0.39 3.74...
  • Page 28 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V80W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 1.77 6.37 1.87 6.34 1.98 6.34 2.02 6.31 2.08 6.31 2.18 -11.8 6.66 1.85 6.66 1.95...
  • Page 29 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V80W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 6.31 2.18 6.29 2.26 6.26 2.34 6.26 2.38 6.26 2.42 6.23 -11.8 6.57 2.25 6.57 2.32...
  • Page 30 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V80W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 6.21 2.59 6.19 2.65 6.19 2.71 6.07 2.66 5.87 2.56 5.47 2.34 -11.8 6.47 2.64 6.47...
  • Page 31 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V105W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 9.22 10.99 1.34 12.75 1.43 13.24 1.49 13.87 1.53 14.21 1.67 14.57 1.68 9.22 10.99...
  • Page 32 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V105W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 0.92 1.15 10.8 1.37 11.55 1.47 12.3 1.59 13.24 1.65 13.54 0.94 1.17 10.8 1.38...
  • Page 33 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V105W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 6.37...
  • Page 34 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V105W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 4.95...
  • Page 35 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V105W/DN1 Cooling Indoor temperature(° C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 3.54 0.44 4.24...
  • Page 36 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V105W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 8.18 2.29 8.14 2.43 2.56 2.62 8.07 2.69 8.07 2.82 -11.8 8.51 8.51 2.52 8.47 2.65...
  • Page 37 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V105W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 8.07 2.82 8.03 2.93 7.99 3.03 7.99 3.08 7.99 3.13 7.96 3.23 -11.8 2.91 8.36 8.36...
  • Page 38 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V105W/DN1 Heating Indoor temperature(° C WB) Outdoor Combination temperature(° C DB） (Capacity index) ° C DB ° C WB -13.7 7.94 3.36 3.43 7.76 3.45 3.31 6.99 3.04 -11.8 8.27 3.42 8.27 3.48 8.05 7.76 3.27...
  • Page 39 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V120W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 10.81 1.33 12.87 1.62 14.93 1.74 15.51 1.81 16.25 1.86 16.65 2.02 17.07 2.04 10.81 1.33...
  • Page 40 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V120W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 9.14 1.12 10.9 1.39 12.65 1.66 13.53 1.79 14.41 1.92 15.51 15.86 2.06 9.14 1.14 10.9...
  • Page 41 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V120W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 7.47 8.92 1.08 10.37 1.28 11.07 1.39 11.77 1.48 13.22 14.67 1.95 7.47 0.91 8.92 1.09...
  • Page 42 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V120W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 0.71 6.94 0.83 8.04 0.94 8.61 1.01 9.18 1.08 10.28 1.23 11.42 1.42 0.72 6.94 0.84...
  • Page 43 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V120W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 4.15 0.53 4.96 0.61 5.75 6.15 0.73 6.55 0.77 7.34 0.88 8.17 0.95 4.15 0.53 4.96...
  • Page 44 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V120W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 9.39 2.74 9.35 3.06 3.14 9.26 3.22 9.26 3.38 -11.8 9.76 2.87 9.76 3.02 9.72 3.17...
  • Page 45 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V120W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 9.26 3.38 9.22 9.18 3.62 9.18 3.69 9.18 3.74 9.14 3.87 -11.8 9.64 3.48 9.64 3.59...
  • Page 46 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V120W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 9.11 4.02 9.07 4.11 9.07 4.19 8.91 4.13 8.61 3.96 8.03 3.63 -11.8 9.49 4.09 9.49...
  • Page 47 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V140W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 12.3 1.61 14.65 1.97 2.11 17.65 18.5 2.26 18.95 2.46 19.43 2.47 12.3 1.61 14.65 2.01...
  • Page 48 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V140W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 10.4 1.36 12.4 14.4 2.02 15.4 2.17 16.4 2.34 17.65 2.43 18.05 10.4 1.39 12.4 1.72...
  • Page 49 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V140W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 10.15 1.32 11.8 1.55 12.6 1.69 13.4 15.05 2.07 16.7 2.37 1.11 10.15 1.33 11.8 1.57...
  • Page 50 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V140W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 0.86 1.01 9.15 1.15 1.23 10.45 1.31 11.7 1.73 0.87 1.02 9.15 1.15 1.25 10.45 1.34...
  • Page 51 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V140W/DN1 Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C DB) index) 4.73 0.64 5.65 0.74 6.55 0.85 0.89 7.45 0.94 8.35 1.07 1.15 4.73 0.64 5.65 0.75...
  • Page 52 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V140W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 10.95 3.29 10.9 3.48 10.85 3.67 10.85 3.76 10.8 3.86 10.8 4.05 -11.8 11.39 3.44 11.39...
  • Page 53 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V140W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 10.8 4.05 10.76 10.71 4.34 10.71 4.42 10.71 4.49 10.66 4.64 -11.8 11.25 4.17 11.25 4.31...
  • Page 54 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V140W/DN1 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature(° C (Capacity index) ° C DB ° C WB -13.7 10.63 4.82 10.58 4.92 10.58 5.02 10.39 4.95 10.05 4.75 9.37 4.35 -11.8 11.07 11.07 10.78...
  • Page 55 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V160W/DN1 (B) Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 13.62...
  • Page 56 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V160W/DN1 (B) Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 11.51...
  • Page 57 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V160W/DN1 (B) Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 9.41...
  • Page 58 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V160W/DN1 (B) Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 7.31 8.75...
  • Page 59 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V160W/DN1 (B) Cooling Indoor temperature(°C DB/WB) Combination Outdoor DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 temperature (Capacity (° C 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 5.23...
  • Page 60 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V160W/DN1 (B) Heating Indoor temperature(° C WB) Outdoor Air Combination temperature (° C (Capacity index) ° C DB ° C WB -13.7 12.09 3.77 12.04 3.99 11.98 4.21 11.98 4.31 11.93 4.42 11.93 4.64 -11.8 12.58...
  • Page 61 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 MDV-V160W/DN1 (B) Heating Indoor temperature(° C WB) Outdoor Air Combination temperature (° C (Capacity index) ° C DB ° C WB -13.7 11.93 4.65 11.87 4.81 11.82 4.98 11.82 5.07 11.82 5.15 11.77 5.31 -11.8 12.41...
  • Page 62 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF MDV-V160W/DN1 (B) Heating Indoor temperature(° C WB) Outdoor Air Combination temperature (° C (Capacity index) ° C DB ° C WB -13.7 11.74 5.53 11.68 5.64 11.68 5.76 11.47 5.67 11.09 5.44 10.34 4.99 -11.8 12.22...

  • Page 63: Electric Characteristics

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 8. Electric Characteristics Outdoor Unit Power Supply Compressor Model Min. Max. Voltage TOCA MDV-V80W/DN1 220-240 26.25 0.17 MDV-V105W/DN1 220-240 27.5 0.17 MDV-V120W/DN1 220-240 31.25 13.5 2×0.1 2×0.9 MDV-V140W/DN1 220-240 36.25 13.5 2×0.1 2×0.9 MDV-V160W/DN1(B) 220-240 36.25...

  • Page 64: Sound Levels

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 9. Sound Levels Model Noise level dB(A) Height (m) MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 MDV-V140W/DN1 MDV-V160W/DN1(B) Specifications & Performance...

  • Page 65: Operation Limits

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 10. Operation Limits Cooling Heating Indoor temperature ( ℃ WB) Indoor temperature ( ℃ DB) Mode Outdoor temp. Indoor temp. Room relative humidity Cooling mode -15° C ~ 43° C 17° C ~ 32° C below 80% ───...

  • Page 66: Part 3 Installation

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Part 3 Installation 1. Precautions ....................64 2. Accessories ....................65 3. Outdoor Unit Installation ................66 4. Piping Installation ..................68 5. Electric Wiring Installations ................. 73 6. Outdoor Unit Wiring ..................75 7.

  • Page 67: Precautions

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 1. Precautions  Ensure that all Local, National and International regulations are satisfied.  Read this “PRECAUTIONS” carefully before Installation.  The precautions described below include the important Items regarding safety.  Observe them without fail. ...

  • Page 68: Accessories

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF If the air conditioner is not installed appropriately, accidents may occur due to the falling unit. Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive power supply. An insufficient power supply capacity or inappropriate installation may cause fire.

  • Page 69: Outdoor Unit Installation

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 3. Outdoor Unit Installation 3.1 Installation space selection Install the outdoor unit at a place where discharge air is not blocked. When an outdoor unit is installed in a place that is always exposed ...
  • Page 70 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Fix with bolt Single unit installation (Wall or obstacle) Air inlet >300 Maintain channel Air inlet >600 Air outlet Parallel connect two units or above >300 >600 >2000 Parallel connect the front with rear sides >2000 >500 >3000...

  • Page 71: Piping Installation

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 3.3 Water Outlet Four condensed water outlets on the chassis for selection display as the follow figure: While installing the outdoor unit, pay attention to the installation place and the drainage pattern; if it’s installed at the alpine zone, the frozen condensed water will block up the water outlet, please pull out the rubber stopper of the reserve water outlet.
  • Page 72 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Note: When the total equivalent piping length of liquid + gas side is ≥90m, it must increase the size of air side main pipe. Besides, according to the distance of refrigerant pipe and the over matched state of indoor unit, when the capacity is decreasing it still can increase the gas side main pipe size.
  • Page 73 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 4.3 Refrigerant pipe selection The first connecting method Outdoor Unit The first Line Branch Pipe The second connecting method Outdoor Unit(Take Model 160 for example) (28) intdoor Units (28) Pipe connecting position Code (28) The first Line Branch Pipe (28)
  • Page 74 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF One way cassette type 5.6 15.9(Flaring nut) 9.5(Flaring nut) Low static pressure 1.8~4.5 12.7(Flaring nut) 6.4(Flaring nut) Low static pressure 5.6 15.9(Flaring nut) 9.53(Flaring nut) Thin duct type 7.1 12.7(Flaring nut) 6.4(Flaring nut) A5 duct type 2.2~4.5 12.7(Flaring nut) 6.4(Flaring nut)
  • Page 75 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 4.4 Remove Dirt or Water in the Piping Make sure there is no any dirt or water before connecting the piping to the outdoor units. Wash the piping with high pressure nitrogen, never use refrigerant of outdoor unit 4.5 Airtight Test Charge pressured nitrogen after connecting indoor/outdoor unit piping to do airtight test.

  • Page 76: Electric Wiring Installations

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 5. Electric Wiring Installations 5. 1 Highlights of electrical installation 1) Please separately design the special power of indoor units and outdoor units. 2) The power adopts special circuit, and installs creepage protector and manual switch. 3) The indoor units’...
  • Page 77 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 2) Plastic wire tube is generally used in indoor and place with corrosion, but it is not suitable to situation with mechanical damage. 3) The wiring through pipe shall not be in the form with ends jointing. If there must be joint, connection box should be installed at the corresponding place.

  • Page 78: Outdoor Unit Wiring

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Indoor unit connect with power supply which is 220-240V~50Hz. Outdoor unit connect with power supply which is 220-240V~ 50Hz (Please set all the indoor unit power supply of one system into the same circuit. It should turn on or shut down the unit at the same time, otherwise, the service life would affect seriously, even the unit may not turn on.) ...

  • Page 79: Test Running

    R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7. Test Running Operate according to “key points for test running” on the electric control box cover. CAUTION  Test running cannot start until the outdoor unit has been connected to the power for 12hours. ...

  • Page 80: Part 4 Troubleshooting

    MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Part 4 Troubleshooting 1. PCB Ports Instructions ................78 2. PCB Parts Instructions ................80 3. Function Setting Dial Switches Instructions ..........82 4. LED on PCB Instructions ................83 5. PCB Introduction ..................84 6.
  • Page 81 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 1. PCB Ports Instructions 80/105 model 5 6 7 8 9 10 PCB ports instruction Content Port voltage 1 CN27 PCB power supply output port 220V 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 82 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 120~160 model PCB ports instruction Content Port voltage 1 CN48 AC Power Input AC 220V 2 CN24 Load output port AC 220V 3 CN42 Load output port(single way valve) AC 220V Load output port 4 CN26 AC 220V 5 CN25...
  • Page 83 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 2. PCB Parts Instructions 80/105 model LED digital SW1: Forced tube display cooling 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 84 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 120~160 model SW1: Forced cooling button SW2: Query button LED digital Function setting tube display dial switch SW-1 query instructions Content Note Frequency will display when running, quantities of indoor unit Normal display will display when standby.
  • Page 85 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 3. Function Setting Dial Switches Instructions 80/105 model 120~160 model SW3 definition: Auto Addressing Dial SW-1 definition: Auto Addressing Dial SW-1 Obtain network address automatically Obtain network address automatically Obtain network address manually Obtain network address manually Revocation indoor unit network address Revocation indoor unit network address...
  • Page 86 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 4. LED on PCB Instructions The lamp on the 80/105 model, refers to the following picture LED 2 (Red) LED 1 (Green) IR341 chip The lamp on the 120~160 model, refers to the following picture LED 2 (Red) LED 1 (Green) LED1: Malfunction indicator lamp of inverter module.
  • Page 87 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 5. PCB Introduction 80/105 model PFC Module Filter Board Main PCB Drive Board IPM Module 120~160 model IPM Module Drive Board Main PCB Filter Board PFC Module Troubleshooting...
  • Page 88 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 6. Error Code Table Error code Content Note 80/105 model Communication malfunction between IR341 and main control board 120~160 model All models Communication malfunction between the indoor chip and outdoor chip. All models Pipe temperature T3&...
  • Page 89 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7. Troubleshooting 7.1 H0/E3: Communication malfunction between IR341 and main chip on the main PCB. (H0 is for 80/105 model,E3 is for 120~160 model.) 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 90 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 7.2 E2: Communication malfunction between indoor chip and outdoor chip.(for all models) LED displays E2 Communication malfunction between indoor unit chip and outdoor unit chip. Check whether the indoor unit is power on. Plug the indoor unit in.
  • Page 91 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 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 92 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 7.3 E4: Pipe temperature T3& ambient temperature T4 sensor malfunction (for all models) displays Pipe temperature T3& ambient temperature T4 sensor malfunction Whether the wire body is broken. Connect the wire again. Judge whether temperature sensor pin connects Connect again.
  • Page 93 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.4 E5: Voltage protection malfunction (for all models) displays Voltage protection malfunction Whether the input voltage is 180-260V. Check the power supply. Replace the filter board and check whether the unit can operate normally. Replace the main PCB Troubleshooting...
  • Page 94 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 7.5 E6/E8/Eb: DC Fan Malfunction (E6 is for all models, Eb is for 80/105 model, E8 is for 120~160 model) If the system display 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 95 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.6 E7: Discharge Temperature Sensor Malfunction (only for 80/105 models.) 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.
  • Page 96 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 7.7 E9/E0: EEPROM malfunction (E9 is for 80/105 model, E0 is for 120~160 model) 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 97 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.8 EA/E7: Fan error in A region last for more than 5 minutes in heating mode. (EA is for 8/105 model, E7 is for 120~160 model) LED displays EA/E7 System faulty that T3 pipe temperature exceeds 27 degrees for more than 5 minutes when heating mode.
  • Page 98 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 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 99 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 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 100 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 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 101 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 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 102 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF 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 103 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.14 P6 indicates inverter module protection; H4 indicates P6 protection has occurred 3 times in 60 minutes. When an H4 error occurs, a manual system restart is required before the system can resume operation. The cause of an xH4 error should be addressed promptly in order to avoid system damage.
  • Page 104 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF ③The capacitor output steady power supply for inverter module P N terminals. In standby the voltage between P and N terminal on inverter module is 310V DC. When the fan motor is running, the voltage between P and N terminal on inverter module is 380V DC.
  • Page 105 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 Condition 2: L0 / L4 error appears immediately when the compressor starts up. L0 / L4 U V W wires between inverter module Ensure U V W wire is connected and compressor is not connected properly properly Inverter module is failed...
  • Page 106 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Condition 3: L0 / L4 error appears after the compressor running a period time (running frequency is over 60Hz). L0 / L4 Discharge part of the refrigerant. Add Excess refrigerant oil if it leaks during discharge Fasten the fixing screws for the Inverter module is too hot inverter module and recoat heat...
  • Page 107 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.14.4 L1 / L2 troubleshooting The normal DC voltage between terminal P and N on inverter module is 310V in standby and 380V under fan motor running. If the voltage is lower or higher than the normal voltage, the unit will display L1 or L2 error.
  • Page 108 MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF Condition 2: L1 or L2 error appears when the compressor operates more than 20Hz. L1 /L2 Relay on main PCB is open Replace the main PCB or transformer PFC on inverter module is failed Replace the inverter module Notes: If the fan motor is running and the DC voltage between terminal P and N on inverter module is not 380V indicates the PFC is failed.
  • Page 109 R410A All DC Inverter Mini VRF MCAC-VTSM-2016-10 7.15 PE/P7 malfunction: Evaporator T2 high temperature protection (PE is for 8/105 model, P7 is for 120~160 model) When the middle average temperature of the evaporator is higher than 63 degrees for 50 seconds, the unit will stop operating.
  • Page 110 MCAC-VTSM-2016-10 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.
  • Page 111 Commercial Air Conditioner Division Midea Group Add.: Midea Headquarters Building, 6 Midea Avenue, Shunde, Foshan, Guangdong, China Postal code: 528311 Midea CAC After-service Application Midea CAC News Application Tel: +86-757-26338346 Fax: +86-757-22390205 cac.midea.com global.midea.com Note: Product speci cations change from time to time as product improvements and developments are released and may vary from those in this document.

This manual is also suitable for:

Mini vrf mdv-v80w/dn1Mini vrf mdv-v120w/dn1Mini vrf mdv-v140w/dn1Mini vrf mdv-v160w/dn1

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