Midea MDV-V80W/DN1 Technical Manual
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Midea MDV-V80W/DN1 Technical Manual

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Contents

Part 1
General Information ........................................................... 1
Part 2
Specifications & Performances ...................................... 10
Part 3
Installation ........................................................................ 57
Part 4 Troubleshooting ................................................................. 72
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-V80W/DN1

  • Page 1 Contents Part 1 General Information ............1 Part 2 Specifications & Performances ........10 Part 3 Installation ................ 57 Part 4 Troubleshooting ..............72 Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without incurring obligations.

  • Page 2: Table Of Contents

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF Part 1 General Information 1. Product Lineups ....................2 2. Nomenclature ....................3 3. Features ......................4 4. Indoor Units Lineups ..................8 General Information...

  • Page 3: Product Lineups

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 1. Product Lineups 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 75.5/85.5 220~240V-1ph 50Hz Depth:396 Width: 1075 MDV-V105W/DN1 Height:966 75.5/85.5 220~240V-1ph 50Hz Depth:396...

  • Page 4: 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 VRF *Note: the actual cooling capacity please refers to the nameplate. General Information...

  • Page 5: Features

    7 zones with one outdoor unit. Such as villa, restaurant, school etc. Midea offers a variety indoor unit, more than 100 models of 15 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 6 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 7 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 8 MCAC-VTSM-2014-10 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 9: Indoor Units Lineups

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4. Indoor Units Lineups Cassette type Compact four-way One-way cassette Two-way cassette Four-way cassette cassette Capacity (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
  • Page 10 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF Wall mounted Wall mounted Wall mounted Wall mounted Wall mounted Capacity (S panel) (C panel) (D panel) (R panel) (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ●...

  • Page 11: Table Of Contents

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 12: Specifications

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 1. Specifications MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 Sale Model Code 220095103431 220095103351 220095101631 Power supply V-Ph-Hz 220-240V~50Hz 220-240V~50Hz 220-240V~50Hz Capacity 7.2 (1.5~8) 9.0 (2~10) 12.3 Input 1.82 (0.71~1.86) 2.3 (0.89~2.59) 3.25 Cooling kW/ kW 3.95 3.91...
  • Page 13 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 Sale Model MDV-V80W/DN1 MDV-V105W/DN1 MDV-V120W/DN1 Outdoor air flow 5500 5500 6000 Outndoor sound level(sound pressure level ) dB(A) 54~67 54~68 Indoor unit connectable (Total Capacity) 45%~130% 45%~130% 45%~130% Max. quantity of indoor unit Dimension 1075×966×396...
  • Page 14 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF MDV-V160W/DN1(B) Sale Model MDV-V140W/DN1 Insulation class Safe class IP23 IP23 Input 2*100 2*100 Outdoor Fan Output 2*85 2*85 motor Rated current 2*0.9 2*0.9 Speed r/min Material ASG20 ASG20 Type Axial fan Axial fan Outdoor fan Diameter Height...

  • Page 15: Dimensions

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 2. Dimensions 80/105 model 120~160 model MODEL 80/105 1075 120/140 —— 1327 /160 Unit:mm Specifications & Performance...

  • Page 16: Service Space

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 3. Service Space 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 17: Piping Diagrams

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4. Piping Diagrams Electronic expansion valve Stop valve High pressure High pressure switch Condenser High pressure liquid receiver 4-way valve Oil seperator Oil return capillary Compressor Stop valve Low pressure Low pressure Low pressure switch liquid receiver Oil separator: used to separate oil from high pressure &...

  • Page 18: Wiring Diagrams

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 5. Wiring Diagrams 8/105 model Specifications & Performance...
  • Page 19 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 120~160 model Specifications & Performance...

  • Page 20: Field Wiring

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 6. Field Wiring Specifications & Performance...

  • Page 21: Capacity Tables

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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) 6.33 0.74 7.53 0.91 8.74 0.97 9.08 1.01 9.51 1.04...
  • Page 22 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 5.35 0.68 6.38 0.82 7.41 0.98 7.92 1.06 8.43 1.14 9.08 1.18 9.28 1.22 5.35 0.69 6.38 0.83 7.41 0.99 7.92 1.07 8.43 1.15 9.08 1.19 9.28 1.23 5.35 0.69 6.38 0.85 7.41 1.01 7.92 1.09...
  • Page 23 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4.37 0.80 5.22 1.01 6.07 1.24 6.48 1.37 6.89 1.50 7.53 1.70 7.69 1.71 4.37 0.85 5.22 1.07 6.07 1.32 6.48 1.46 6.89 1.60 7.43 1.77 7.59 1.78 4.37 0.90 5.22 1.14 6.07 1.41 6.48 1.56...
  • Page 24 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 2.91 0.37 3.47 0.44 4.04 0.51 4.32 0.54 4.60 0.58 5.17 0.66 5.73 0.74 2.91 0.38 3.47 0.45 4.04 0.52 4.32 0.55 4.60 0.59 5.17 0.67 5.73 0.75 2.91 0.39 3.47 0.45 4.04 0.53 4.32 0.56...
  • Page 25 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 Heating Indoor temperature(° C WB) Outdoor Combination temperature (° C (%) (Capacity index)) ° C DB ° C WB -13.7 5.12 1.39 5.10 1.47 5.07 1.55 5.07 1.59 5.05 1.63 5.05 1.71 -11.8 5.33 1.45 5.33...
  • Page 26 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 8.07 2.15 7.66 2.02 7.20 1.87 6.97 1.80 6.74 1.73 6.29 1.59 8.11 2.04 7.66 1.90 7.20 1.76 6.97 1.69 6.74 1.63 6.29 1.50 8.11 1.92 7.66 1.79 7.20 1.66 6.97 1.57 6.74 1.53 6.29 1.41...
  • Page 27 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4.87 1.26 4.59 1.18 4.32 1.11 4.18 1.07 4.05 1.03 3.77 0.96 4.87 1.19 4.59 1.12 4.32 1.05 4.18 1.01 4.05 0.98 3.77 0.91 4.87 1.13 4.59 1.06 4.32 0.99 4.18 0.96 4.05 0.93 3.77 0.86...
  • Page 28 MCAC-VTSM-2014-10 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) 7.91 0.94 9.42 1.15 10.93 1.23 11.35 1.28 11.89 1.32 12.18 1.43 12.49 1.44 7.91...
  • Page 29 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 6.69 0.88 7.97 1.07 9.26 1.27 9.90 1.37 10.54 1.48 11.35 1.52 11.60 1.57 6.69 0.90 7.97 1.09 9.26 1.30 9.90 1.40 10.54 1.51 11.22 1.54 11.44 1.59 6.69 0.91 7.97 1.11 9.26 1.32 9.90 1.43...
  • Page 30 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 5.46 1.14 6.53 1.44 7.59 1.78 8.10 1.97 8.61 2.16 9.13 2.31 9.32 2.33 5.46 1.21 6.53 1.53 7.59 1.90 8.10 2.09 8.61 2.30 8.97 2.39 9.19 2.41 5.46 1.28 6.53 1.63 7.59 2.02 8.10 2.23...
  • Page 31 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 3.63 0.49 4.34 0.57 5.05 0.67 5.40 0.71 5.75 0.76 6.46 0.86 7.17 0.96 3.63 0.50 4.34 0.58 5.05 0.68 5.40 0.73 5.75 0.77 6.46 0.88 7.17 0.98 3.63 0.50 4.34 0.59 5.05 0.69 5.40 0.74...
  • Page 32 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF Heating Indoor temperature(° C WB) Outdoor Combination temperature (° C (Capacity index)) ° C DB ° C WB -13.7 6.40 1.80 6.37 1.90 6.34 2.00 6.34 2.05 6.31 2.10 6.31 2.21 -11.8 6.66 1.87 6.66 1.98...
  • Page 33 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 10.09 2.77 9.57 2.60 9.00 2.41 8.71 2.32 8.43 2.23 7.86 2.05 10.14 2.63 9.57 2.45 9.00 2.27 8.71 2.18 8.43 2.10 7.86 1.93 10.14 2.47 9.57 2.30 9.00 2.14 8.71 2.03 8.43 1.98 7.86 1.82...
  • Page 34 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 6.09 1.63 5.74 1.53 5.40 1.43 5.23 1.38 5.06 1.33 4.71 1.23 6.09 1.54 5.74 1.44 5.40 1.35 5.23 1.31 5.06 1.26 4.71 1.17 6.09 1.46 5.74 1.37 5.40 1.28 5.23 1.24 5.06 1.20 4.71 1.11...
  • Page 35 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 36 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 9.14 1.24 10.9 1.51 12.65 13.53 1.94 14.41 2.09 15.51 2.15 15.86 2.21 9.14 1.27 10.9 1.54 12.65 1.83 13.53 1.98 14.41 2.13 15.33 2.18 15.64 2.24 9.14 1.29 10.9 1.57 12.65 1.87 13.53 2.01 14.41...
  • Page 37 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 7.47 1.61 8.92 2.04 10.37 2.52 11.07 2.78 11.77 3.05 12.48 3.27 12.74 3.29 7.47 1.71 8.92 2.16 10.37 2.68 11.07 2.96 11.77 3.25 12.26 3.38 12.56 3.41 7.47 1.81 8.92 10.37 2.85 11.07 3.15 11.77...
  • Page 38 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 4.96 0.69 5.93 0.81 0.94 7.38 1.01 7.86 1.07 8.83 1.22 1.36 4.96 5.93 0.82 0.95 7.38 1.02 7.86 1.09 8.83 1.24 1.39 4.96 0.71 5.93 0.84 0.97 7.38 1.04 7.86 1.11 8.83 1.26 1.41 4.96...
  • Page 39 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 9.68...
  • Page 40 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 14.79 4.24 14.04 3.98 13.2 3.69 12.78 3.55 12.36 3.41 11.52 3.13 14.88 4.02 14.04 3.74 13.2 3.47 12.78 3.34 12.36 3.21 11.52 2.95 14.88 3.78 14.04 3.52 13.2 3.27 12.78 12.36 3.02 11.52 2.79 14.88...
  • Page 41 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 8.93 2.49 8.42 2.33 7.92 2.18 7.67 7.42 2.03 6.91 1.88 8.93 2.35 8.42 2.21 7.92 2.06 7.67 7.42 1.92 6.91 1.79 8.93 2.23 8.42 2.09 7.92 1.96 7.67 1.89 7.42 1.83 6.91 8.93 2.11 8.42...
  • Page 42 MCAC-VTSM-2014-10 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) 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 43 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 10.4 1.51 12.4 1.84 14.4 2.18 15.4 2.36 16.4 2.54 17.65 2.61 18.05 2.69 10.4 1.54 12.4 1.87 14.4 2.23 15.4 2.41 16.4 2.59 17.45 2.65 17.8 2.73 10.4 1.57 12.4 1.91 14.4 2.27 15.4 2.45...
  • Page 44 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 1.96 10.15 2.48 11.8 3.06 12.6 3.37 13.4 14.2 3.97 14.5 2.08 10.15 2.63 11.8 3.26 12.6 3.59 13.4 3.95 13.95 4.11 14.3 4.14 10.15 11.8 3.47 12.6 3.83 13.4 4.21 13.75 4.25 14.05 4.29 2.28...
  • Page 45 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 5.65 0.84 6.75 0.98 7.85 1.14 1.22 8.95 10.05 1.48 11.15 1.66 5.65 0.85 6.75 7.85 1.16 1.25 8.95 1.33 10.05 1.51 11.15 1.69 5.65 0.86 6.75 1.02 7.85 1.18 1.27 8.95 1.35 10.05 1.53 11.15...
  • Page 46 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 3.62...
  • Page 47 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 17.26 5.08 16.38 4.77 15.4 4.42 14.91 4.25 14.42 4.08 13.44 3.75 17.36 4.82 16.38 4.48 15.4 4.16 14.91 14.42 3.85 13.44 3.54 17.36 4.53 16.38 4.22 15.4 3.92 14.91 3.72 14.42 3.63 13.44 3.34 17.36...
  • Page 48 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 10.41 2.98 9.83 9.24 2.61 8.95 2.52 8.65 2.44 8.07 2.26 10.41 2.82 9.83 2.65 9.24 2.47 8.95 2.39 8.65 2.31 8.07 2.14 10.41 2.67 9.83 2.51 9.24 2.34 8.95 2.27 8.65 2.19 8.07 2.04 10.41...
  • Page 49 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 50 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 11.51 1.72 13.73 15.94 17.05 18.16 2.91 19.54 2.98 19.99 3.08 11.51 1.76 13.73 2.14 15.94 2.55 17.05 2.75 18.16 2.96 19.32 3.03 19.71 3.12 11.51 1.79 13.73 2.18 15.94 17.05 18.16 3.02 19.04 3.05 19.49...
  • Page 51 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 9.41 2.24 11.24 2.83 13.06 13.95 3.86 14.84 4.24 15.72 4.54 16.05 4.58 9.41 2.38 11.24 3.01 13.06 3.73 13.95 4.11 14.84 4.52 15.44 15.83 4.74 9.41 2.52 11.24 13.06 3.97 13.95 4.38 14.84 4.81 15.22...
  • Page 52 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 6.26 0.96 7.47 1.13 8.69 1.31 9.91 1.49 11.13 1.69 12.34 1.89 6.26 0.97 7.47 1.14 8.69 1.33 1.43 9.91 1.52 11.13 1.72 12.34 1.93 6.26 0.99 7.47 1.16 8.69 1.35 1.45 9.91 1.55 11.13 1.75...
  • Page 53 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 3.94 12.58...
  • Page 54 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 19.05 5.82 18.08 5.47 5.07 16.46 4.87 15.92 4.68 14.84 4.31 19.16 5.53 18.08 5.14 4.77 16.46 4.59 15.92 4.41 14.84 4.06 19.16 5.19 18.08 4.84 4.49 16.46 4.27 15.92 4.16 14.84 3.83 19.16 4.89 18.08...
  • Page 55 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 11.5 3.42 10.85 3.21 10.2 9.88 2.89 9.55 2.79 2.59 11.5 3.23 10.85 3.04 10.2 2.84 9.88 2.74 9.55 2.65 2.46 11.5 3.06 10.85 2.87 10.2 2.69 9.88 9.55 2.51 2.34 11.5 10.85 2.73 10.2 2.55...

  • Page 56: Electric Characteristics

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 8. Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA MDV-V80W/DN1 220-240 V 198V 253V 0.17 MDV-V105W/DN1 220-240 V 198V 253V 0.17 MDV-V120W/DN1 220-240 V 198V 253V 13.5 220-240 V...

  • Page 57: Operation Limits

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 58: Part 3 Installation

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF Part 3 Installation 1. Precautions ....................58 2. Accessories ....................59 3. Outdoor unit installation ................59 4. Piping installation ..................62 5. Electric Wiring Installations ................. 67 6. Outdoor Unit Wiring ..................69 7.
  • Page 59 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 60 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might generate. Install the air conditioner securely in a location where the base can sustain the weight adequately. Perform the specified installation work to guard against an earthquake.
  • Page 61 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 2000 Strong Strong wind wind  Do not install the unit in a place full of machine oil.  Do not install the unit in a place full of sulphuric gas.  Do not install the unit in a place where high frequency radio waves are likely to be generated as from audio equipment, welders, and medical equipment.
  • Page 62 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 >3000...

  • Page 63: Piping Installation

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4. Piping installation 4.1 Piping connection Various piping and wiring patterns can be selected, such as out from the front, the back, the side, and undersurface, etc.（The follow display the locations of several piping and wiring knock-off interfaces） Fat pipe Front out pipe Side out pipe...
  • Page 64 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF The first connecting method Outdoor unit Pipe Length(from the nearest branch pipe equivalent length Maximum pipe equivalent length The first line Branch Pipe (from the first line branch pipe) Maximum pipe equivalent length Indoor Unit The second connecting method The second cennect methond...
  • Page 65 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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) (28) The first Line Branch Pipe (28) (28) (22)
  • Page 66 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF Table 1: Indoor unit branch pipes selection (a~f) A: Capacity of indoor units (kW) Gas Side(Φ) Liquid Side(Φ) A (kW) Wall mounted 1.5~4.5 12.7(Flaring nut) 6.4(Flaring nut) Wall mounted 5.6 15.9(Flaring nut) 9.5(Flaring nut) Four way cassette type 2.2~4.5 12.7(Flaring nut) 6.4(Flaring nut)
  • Page 67 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 If ODU connect more than one IDU, the capacity of each IDU should be not more than 8kW for refrigerant uniform distribution. When capacity of indoor unit greater than the sum of 100%, capacity of indoor unit will be attenuated. When capacity of indoor unit greater than or equal to the sum of 120%, in order to ensure the effectiveness of machine, and then try to open the indoor units at different time.
  • Page 68 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF  When the external diameter of copper pipe≤Φ12.7mm, the thickness of the insulating layer at least more than 15mm; when the external diameter of copper pipe≥Φ15.9mm, the thickness of the insulating layer at least more than 20mm.
  • Page 69 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 When earth protection line (shortly called PE line) is made of material the same as phase line, the smallest sectional area of PE line should be in accordance with the regulation below: Sectional area of core to phase lines(mm) Smallest sectional area of PE line(mm) S≤16 16＜S≤35...
  • Page 70 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 5.5 Indoor/Outdoor unit signal wire wiring Note: Refrigerant piping system, indoor unit-indoor unit connection signal wires and indoor unit-outdoor unit connection signal wire are in the same system. When power cord is parallel with signal wire, please put them into separate wire distribution pipes, and leave a proper distance.
  • Page 71 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 CAUTION A disconnection device having an air gap contact separation in all active conductors should be incorporated in the fixed wiring according to the National Wiring Regulation. Caution:  Employ an electrical engineer for wiring. ...
  • Page 72 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 8. Precautions on Refrigerant Leakage This air conditioner (A/C) adopts innocuous and nonflammable refrigerant. The locating room of the A/C should big enough that any refrigerant leakage is unable to reach critical thickness. So certain essential action can be taken on time.

  • Page 73: Part 4 Troubleshooting

    R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 Part 4 Troubleshooting 1. PCB ports instructions ................. 73 2. PCB parts instructions ................. 75 3. Function setting dial switches instructions ..........77 4. LED on PCB instructions ................78 5. PCB Introduction ..................79 6.

  • Page 74: Mcac-Vtsm

    MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 3 CN32 Online Programmable Port The other four pins: in dynamic change...
  • Page 75 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 120~160 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 76 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 2. PCB parts instructions 80/105 model 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 77 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 120~160 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 78 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 3. Function setting dial switches instructions 80/105 model SW3 definition: Auto Addressing Dial Obtain network address automatically Obtain network address manually Revocation indoor unit network address 120~160 model SW-1 definition: Auto Addressing Dial SW-1 Obtain network address automatically Obtain network address manually...
  • Page 79 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 4. LED on PCB instructions The lamp on the 80/105 model, refers to the following picture LED 1 (Red) LED 2(Green) IR341 chip The lamp on the 120~160 model, refers to the following picture LED 1 (Red) LED 2(Green) LED1: Malfunction indicator lamp of inverter module.
  • Page 80 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 81 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 6. Error code table Error code Content Note Communication malfunction between IR341 and main control 80/105 model board 120~160 model All models Communication malfunctions between the indoor chip and outdoor chip. All models Pipe temperature T3&...
  • Page 82 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 7. Troubleshooting 7.1 H0/E3: Communication malfunctions 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 83 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 7.2 E2: Communication malfunctions 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 84 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF For example: 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 85 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 Case: There is no display on PCB of one system, and the problem still exists after replacing PCB. Voltage values on measuring plate (such as 220V, 5V, 12V, etc.) are normal; after measuring resistance value of 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...
  • Page 86 MCAC-VTSM-2014-10 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 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 87 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 88 MCAC-VTSM-2014-10 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 89 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 90 MCAC-VTSM-2014-10 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 91 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 92 MCAC-VTSM-2014-10 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 93 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 94 MCAC-VTSM-2014-10 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 95 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 7.14 P6: IPM Module protection The following explanation is for 80/105 model. 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 96 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 80/105 model but not on 120~160 model. Check module and L0: module protection compressor...
  • Page 97 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 98 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 99 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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 100 MCAC-VTSM-2014-10 R410A All DC Inverter Mini VRF 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 101 R410A All DC Inverter Mini VRF MCAC-VTSM-2014-10 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-v105w/dn1Mdv-v120w/dn1Mdv-v140w/dn1Mdv-v160w/dn1(b)

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