mundoclima CL23269 Service Manual
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mundoclima CL23269 Service Manual

Mini mvd+ dc inverter
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MVD
Mini MVD V4+ DC Inverter

Service manual

(20 to 45kW)
02/08/16
CL23269 to CL23273
English
www.mundoclima.com

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Summary of Contents for mundoclima CL23269

  • Page 1: Service Manual

    Mini MVD V4+ DC Inverter Service manual (20 to 45kW) 02/08/16 CL23269 to CL23273 English www.mundoclima.com...

  • Page 2: Part 1 General Information

    Service manual Mini MVD V4+ (20 to 45kW) Part 1 General Information 1. Product lineup ..................2 2. Features ....................2 3. Indoor units lineup .................. 6 General Information...

  • Page 3: Product Lineup

    Service manual Mini MVD V4+ (20 to 45kW) 1. Product lineup Model Capacity External appearance Power Supply MVD-V200W/DRN1 20kW (7HP) MVD-V224W/DRN1 22.4kW (8HP) MVD-V260W/DRN1 26kW (9HP) 380-415V-3N~50Hz MVD-V400W/DRN1 40kW (14HP) MVD-V450W/DRN1 45kW (16HP) 2. Features 2.1 Wide application range 2.1.1 Wide capacity range The Capacity range of side discharge type is from 20kW to 45kW, which is designed to optimize performance and better match varieties of application requirement.
  • Page 4 Service manual Mini MVD V4+ (20 to 45kW) 2.2 High efficiency 2.2.1 High efficiency DC inverter compressor High efficiency DC inverter twin rotary compressor Highly Efficient DC Motor: - Creative motor core design - High density neodymium magnet - Concentrated type stator -Wider operating frequency range Better balance and Extremely Low Vibration: - Twin eccentric cams...
  • Page 5 Service manual Mini MVD V4+ (20 to 45kW) 2.3 Enhanced comfort 2.3.1 Intelligent soft start technology DC inverter compressor soft start function reduces strike to the electric network. This kind of high-performance and low sound scroll compressor operates at a faster rate when starting, reducing start-up time.
  • Page 6 Service manual Mini MVD V4+ (20 to 45kW) 2.4 Easy installation and service 2.4.1 Compact design for effective use of space Compact size and light weight design minimizes the installation footprint, reduces the installation floor load, and easier for transportation. For some projects the units can even be transported through the elevator or forklift, lessen access problem at the jobsite.

  • Page 7: Indoor Units Lineup

    R410A DC Inverter VRF V4 Plus Individual Series Side Discharge Type 50Hz Service manual Mini MVD V4+ (20 to 45kW) 3. Indoor units lineup Cassette type Four-way cassette & Compact four-way One-way cassette Two-way cassette Four-way cassette Capacity cassette silent type (×100W) Duct type Low static...
  • Page 8 Service manual Mini MVD V4+ (20 to 45kW) Indoor units lineup Floor-standing/Ceiling & Floor/Console Cased floor-standing Uncased floor-standing Ceiling & floor console Capacity (×100W) Wall mounted/Fresh air processing unit Wall mounted Wall mounted Wall mounted Capacity Fresh air processing unit (R panel) (S panel) (C panel)

  • Page 9: Table Of Contents

    Service manual Mini MVD V4+ (20 to 45kW) Part 2 Specifications & Performance 1. Specifications ..................9 2. Dimensions .................... 13 3. Service space ..................14 4. Piping diagrams ..................16 5. Wiring diagram ..................18 6. Electric characteristics ................. 20 7.

  • Page 10: Specifications

    Service manual Mini MVD V4+ (20 to 45kW) 1. Specifications Model MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 Power supply V-Ph-Hz 380-415/3/50 Capacity 22.4 Cooling Power input 3.28 3.29 3.42 Capacity 24.5 28.5 Heating Power input 3.61 4.15 4.19 Model LNB42FSAMC LNB53FCAMC Type Rotary Brand MITSUBISHI Quantity...
  • Page 11 Service manual Mini MVD V4+ (20 to 45kW) Packing 1270×1720×565 (W×H×D) Net/Gross weight 137/153 146.5/162.5 147/163 Type R410A Refrigerant Factory charged Throttle type Electronic expansion valve Design pressure (Hi/Lo) 4.4/2.6 Ф9.53 Ф9.53 Ф9.53 Liquid pipe Refrigerant piping Ф19.1 Ф19.1 Ф22.2 Gas pipe Cooling -15~46...
  • Page 12 Service manual Mini MVD V4+ (20 to 45kW) Specifications Model MVD-V400W/DRN1 MVD-V450W/DRN1 Power supply V-Ph-Hz 380-415/3/50 Capacity 40.0 45.0 Cooling Power input 11.9 13.6 3.35 3.32 Capacity 45.0 50.0 Heating Power input 11.1 12.7 4.05 3.93 Model LNB42FSAMC LNB53FCAMC Type Rotary Brand MITSUBISHI...
  • Page 13 Service manual Mini MVD V4+ (20 to 45kW) Packing (W×H×D) 1450×1785×560 1550×1785×560 Net/Gross weight 240/260 275/290 Type R410A Refrigerant Factory charged Throttle type Electronic expansion valve Design pressure (Hi/Lo) 4.4/2.6 Ф12.7 Ф12.7 Refrigerant Liquid pipe Ф22.2 Ф25.4 piping Gas pipe Cooling -5~48 Ambient temp.

  • Page 14: Dimensions

    Service manual Mini MVD V4+ (20 to 45kW) 2. Dimensions MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 Unit: mm 1120 205.8 MVD-V400W/DRN1 MVD-V450W/DRN1 Unit: mm Model 40kW 1360 45kW 1460 Specifications & Performance...

  • Page 15: Service Space

    Service manual Mini MVD V4+ (20 to 45kW) 3. Service space MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1  Single unit installation Single unit installation (Wall or obstacle) Air inlet >300 Maintain the electric wire and pipeline Air inlet >600 Air outlet  Multiple unit installation Parallel connect the two units or above >300 >600...
  • Page 16 Service manual Mini MVD V4+ (20 to 45kW) MVD-V400W/DRN1 MVD-V450W/DRN1  Single unit installation (Wall or obstacle) Air inlet >400 Maintain channel >600 Air inlet Air outlet  Multiple unit installation >400 >600 >4000 >4000 >1000 >8000 >6000 >400 Specifications & Performance...

  • Page 17: Piping Diagrams

    Service manual Mini MVD V4+ (20 to 45kW) 4. Piping diagrams MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 Specifications & Performance...
  • Page 18 Service manual Mini MVD V4+ (20 to 45kW) MVD-V400W/DRN1 MVD-V450W/DRN1 High pressure valve EXVA EXVB Low pressure valve High pressure switch pressure switch SV41 SV42 Key components: Oil separator: It is used to separate oil from high pressure and high temperature gas refrigerant, which is pumped out from compressor.

  • Page 19: Wiring Diagram

    Service manual Mini MVD V4+ (20 to 45kW) 5. Wiring diagram MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 Specifications & Performance...
  • Page 20 Service manual Mini MVD V4+ (20 to 45kW) MVD-V400W/DRN1 MVD-V450W/DRN1 Specifications & Performance...

  • Page 21: Electric Characteristics

    Service manual Mini MVD V4+ (20 to 45kW) 6. Electric characteristics Units Power supply Compressor Model Voltage Min. Max. TOCA MVD-V200W/DRN1 380~415 0.37 MVD-V224W/DRN1 380~415 15.4 0.35 MVD-V260W/DRN1 380~415 15.4 0.35 0.56+ 2.65+ MVD-V400W/DRN1 380~415 12×2 0.32 3.84 0.56+ 2.65+ MVD-V450W/DRN1 380~415 15.4×2...

  • Page 22: Capacity Tables

    Service manual Mini MVD V4+ (20 to 45kW) 7. Capacity tables 7.1 Cooling capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp.

  • Page 23: Cooling Capacity Tables

    Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 14.9 2.10 17.7 2.62...
  • Page 24 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 12.1 1.69 14.5 2.03...
  • Page 25 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 1.33 11.3 1.56 13.1...
  • Page 26 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 0.99 1.14 1.31 10.0...
  • Page 27 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 19.7 2.78 23.4 3.39...
  • Page 28 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 16.6 2.34 19.8 2.92...
  • Page 29 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 13.6 1.89 16.2 2.27...
  • Page 30 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 10.6 1.49 12.6 1.74...
  • Page 31 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 1.10 1.27 10.5 1.46...
  • Page 32 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 22.8 3.11 27.2 3.79...
  • Page 33 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 19.3 2.62 23.0 3.26...
  • Page 34 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 15.8 2.11 18.9 2.53...
  • Page 35 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 12.3 1.66 14.7 1.95...
  • Page 36 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 1.23 10.5 1.42 12.2...
  • Page 37 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 35.1 4.86 41.9 5.94...
  • Page 38 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 29.7 4.10 35.4 5.11...
  • Page 39 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 24.3 3.30 29.0 3.97...
  • Page 40 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 18.9 2.60 22.6 3.05...
  • Page 41 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 13.5 1.93 16.1 2.23...
  • Page 42 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 39.5 5.56 47.1 6.79...
  • Page 43 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 33.4 4.69 39.9 5.84...
  • Page 44 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 27.3 3.78 32.6 4.53...
  • Page 45 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 21.2 2.97 25.4 3.48...
  • Page 46 Service manual Mini MVD V4+ (20 to 45kW) Cooling capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature( C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 Combination temp. 15.2 2.20 18.2 2.55...

  • Page 47: Heating Capacity Tables

    Service manual Mini MVD V4+ (20 to 45kW) 7.2 Heating capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 15.6 4.82...
  • Page 48 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 15.4 5.94 15.4...
  • Page 49 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V200W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 15.2 7.07 15.1...
  • Page 50 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 17.4 4.67 17.3...
  • Page 51 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 17.2 5.75 17.1...
  • Page 52 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V224W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 16.9 6.83 16.8...
  • Page 53 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 20.3 5.38 20.2...
  • Page 54 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 20.0 6.62 19.9...
  • Page 55 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V260W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 19.7 7.88 19.6...
  • Page 56 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 32.0 8.78 31.9...
  • Page 57 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 31.6 10.81 31.4...
  • Page 58 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V400W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 31.1 12.86 30.9...
  • Page 59 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 35.6 10.04 35.4...
  • Page 60 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 35.1 12.37 34.9...
  • Page 61 Service manual Mini MVD V4+ (20 to 45kW) Heating capacity tables MVD-V450W/DRN1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(° C WB) Outdoor Air Combination temperature ° C DB ° C WB -13.7 34.5 14.71 34.4...

  • Page 62: Sound Levels

    Service manual Mini MVD V4+ (20 to 45kW) 8. Sound levels Side air discharge type Front 1.3m Notes: • Data is valid at free field condition • Data is valid at nominal operating condition • Sound level will vary depending on a range of factors such as the construction (acoustic absorption coefficient) of particular room in which the equipment is installed •...

  • Page 63: Sound Pressure Level

    Service manual Mini MVD V4+ (20 to 45kW) Sound pressure level Sound pressure level Model d(B)A MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 MVD-V400W/DRN1 MVD-V450W/DRN1 Sound pressure spectrum 20/22.4kW 26kW Audibility limits of Audibility limits of continuous white sound continuous white sound 125 250 500 1000 2000 4000 8000...

  • Page 64: Accessories

    Service manual Mini MVD V4+ (20 to 45kW) 9. Accessories 9.1 Standard accessories MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1 Name Shape Quantity Installation manual of outdoor unit Operation manual of outdoor unit Operation manual of indoor unit Installation manual of branch pipes Water outlet connection pipe Straight screwdriver Sealing ring Waterproof chassis cover...
  • Page 65 Service manual Mini MVD V4+ (20 to 45kW) 9.2 Optional accessories Branch joint of outdoor & indoor unit Gross/net Optional accessories Model name Packing Size (mm) Function Weight (kg) FQZHW-02N1D 255×150×185 1.5/1.2 Branch Joint of outdoor FQZHW-03N1D 345×160×285 3.4/2.4 unit FQZHW-04N1D 475×165×300 4.8/3.6...
  • Page 66 Service manual Mini MVD V4+ (20 to 45kW) Part 3 Installation 1. Select installation position ..............66 2. Foundation for installation ..............66 3. Installation space .................. 67 4. Lifting method ..................69 5. Refrigerant piping installation ............. 69 6. Branch pipe installation ................ 73 7.
  • Page 67 Service manual Mini MVD V4+ (20 to 45kW) 1. Select installation position  Ensure that the outdoor unit is installed in a dry, well-ventilated place.  Ensure that the noise and exhaust ventilation of the outdoor unit do not affect the neighbors of the property owner or the surrounding ventilation.

  • Page 68: Installation Space

    Service manual Mini MVD V4+ (20 to 45kW) 3. Installation space MVD-V200W/DRN1 MVD-V224W/DRN1 MVD-V260W/DRN1  Single unit installation Single unit installation (Wall or obstacle) Air inlet >300 Maintain the electric wire and pipeline Air inlet >600 Air outlet  Multiple unit installation Parallel connect the two units or above >300 >600...
  • Page 69 Service manual Mini MVD V4+ (20 to 45kW)  Single unit installation (Wall or obstacle) Air inlet >400 Maintain channel >600 Air inlet Air outlet  Multiple unit installation >400 >600 >4000 >4000 >1000 >8000 >6000 >400 Installation...
  • Page 70 Service manual Mini MVD V4+ (20 to 45kW) 4. Lifting method  Do not remove any package before the hoisting. Use two ropes to hoist the machine, keep the machine in balance, and then raise it safely and steadily. In case of no package or if the package is damaged, use plates or packing material to protect it.
  • Page 71 Service manual Mini MVD V4+ (20 to 45kW) 40/45kW Unit (mm) Model Liquid pipe Gas pipe Ф12.7 Ф22.2 40kW Ф12.7 Ф25.4 45kW 5.2 Refrigerant piping length permitted value  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...
  • Page 72 Service manual Mini MVD V4+ (20 to 45kW) Outdoor unit Pipe Length(from the nearest branch pipe equivalent length Maximum pipe equivalent length (from the first line branch pipe) Maximum pipe equivalent length The first line Branch Pipe Indoor unit Permitted value Piping length Piping 20-26kW...
  • Page 73 Service manual Mini MVD V4+ (20 to 45kW)  Pipe name Main pipe Indoor unit main pipe L2, L3, L4, L5 Indoor unit branch pipe a, b, c, d, e, f Indoor unit branch pipe assembly A, B, C, D, E ...
  • Page 74 Service manual Mini MVD V4+ (20 to 45kW) 6. Branch pipe installation The branching pipe must be installed horizontally and error angle of it should not be larger than 10° . Otherwise, refrigerant assignment will be uneven and malfunction will be caused. U-shaped branching pipe A direction view Wrong...

  • Page 75: Additional Refrigerant Charge

    Service manual Mini MVD V4+ (20 to 45kW) Connect with vacuum pump Perform the pump (last for 2 hours or above) 1. Close-off the valve of vacuum meter. When get the vacuum level 2. Cut off the connection -0.1MPa, the pump should between pressure meter keep running for 20-60 mins and vacuum pump.
  • Page 76 Service manual Mini MVD V4+ (20 to 45kW) same time, otherwise, the service life would affect seriously, even the unit may not turn on.) Please put the connective wiring system between indoor unit and outdoor unit with refrigerant piping system together. It is suggested to use 3-core shielded wire as signal wire between indoor and outdoor units, multi-core wire is unavailable.
  • Page 77 Service manual Mini MVD V4+ (20 to 45kW) 12. Running test 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 78 Service manual Mini MVD V4+ (20 to 45kW) Outdoor unit Indoor unit Room full of leak refrigerant (All refrigerant has run up) b. Leak alarm related to mechanical ventilator Indoor unit A. Ventilation peristome (Leak hunting siren should be installed in places easily keep refrigerant) NOTE Please press “Force Cool”...
  • Page 79 Service manual Mini MVD V4+ (20 to 45kW) Part 4 Troubleshooting 1. Main PCB ports instructions ..............79 2. Main PCB parts instructions ..............82 3. Error code table ..................87 4. Troubleshooting ..................88 Troubleshooting...
  • Page 80 Service manual Mini MVD V4+ (20 to 45kW) 1. Main PCB ports instructions 1.1 20/22.4/26kW models Ports instructions: Content Port voltage Power input port of the main PCB 220V Load output port (crankcase heater HAET 1&HEAT 2) 220V Load output port 220V Load output port 220V...
  • Page 81 Service manual Mini MVD V4+ (20 to 45kW) 1.2 40/45kW models Troubleshooting...
  • Page 82 Service manual Mini MVD V4+ (20 to 45kW) Ports instructions: Content Port voltage Discharge temp detection port of inverter compressor A DC 0~5V (in dynamic change) Discharge temp detection port of inverter compressor B DC 0~5V (in dynamic change) Temp detection port of inverter module radiator DC 0~5V (in dynamic change) Reserved Reserved...
  • Page 83 Service manual Mini MVD V4+ (20 to 45kW) 2. Main PCB parts instructions 2.1 20/22.4/26kW models Inverter compressor drive chip Main control chip Function setting dial switch SW1: forced cooling button SW2: check button LED digital tube display Communication chip 2.1.1 Check content instructions (SW2) Display content Display content...
  • Page 84 Service manual Mini MVD V4+ (20 to 45kW) *1: Display compressor frequency when system is running and display the quantity of indoor unit which communicate with outdoor unit when system is standby. *2: Operating mode: 0 – standby mode; 2 – cooling mode; 3 – heating mode; 4 – forced cooling. *3: Fan speed: 0 –...
  • Page 85 Service manual Mini MVD V4+ (20 to 45kW) 2.2 40/45kW models Dial switch Main control chip Dial switch Inverter compressor drive chip Communication chip SW2: check button SW1: forced cooling button LED digital tube display 2.2.1 Query content instructions Normal display Content (present frequency) Note 0.- -...
  • Page 86 Service manual Mini MVD V4+ (20 to 45kW) 22.- - 23.- - Indoor units quantity Actual value=display value 24.- - Running indoor units quantity Actual value=display value 25.- - Mode priority Refer to note 4 26.- - Silent mode Refer to note 5 27.- - Static pressure mode Refer to note 6...
  • Page 87 Service manual Mini MVD V4+ (20 to 45kW) Super silent mode No silent mode S1: Starting time setting Starting time is 5 minutes Starting time is 12 minutes (factor default) S2: Night silent time selection Nighttime silent time 6h/10h (factory default) 1 2 3 Nighttime silent time 6h/12h 1 2 3...

  • Page 88: Error Code Table

    Service manual Mini MVD V4+ (20 to 45kW) S7: ON/OFF for indoor unit quantity setting function Indoor unit quantity setting function is open (factory default) Indoor unit quantity setting function is closed ENC4: Outdoor unit network address setting ENC4 Outdoor unit network address setting (0-7 is effective) 3.

  • Page 89: Troubleshooting

    Service manual Mini MVD V4+ (20 to 45kW) Zero speed protection Reserved Phase sequence error Frequency difference in one second more than 15Hz protection Frequency difference between the real and the setting frequency more than 15Hz protection Note: P6, L0~L9 error codes can’t display on digital tube automatically, these error codes will display on digital tube only through SW3 button (press SW3 ten times, every one second for a time) The large capacity V4+ individual system (56-90kW) have the function of refrigerant volume automatic judgment.
  • Page 90 Service manual Mini MVD V4+ (20 to 45kW) If the wiring connection of each outdoor unit is according to A, B, C phase sequence, when the quantity of outdoor units is large, the current difference between C phase and A, B phase will be very large for the power supply load of each outdoor unit is on C phase, it is very easy to lead to air switch break and wiring terminal burnout.
  • Page 91 Service manual Mini MVD V4+ (20 to 45kW) 4.3 E4: Pipe temp T3/ambient temp T4 sensor error; E7: Discharge temp sensor T7 error E4: T3/T4/T7 sensor error T3/T4/T7 port on main Fasten the T3/T4 port control board is loose T3/T4/T7 sensor is short circuit or disabled (Using multimeter...
  • Page 92 Service manual Mini MVD V4+ (20 to 45kW) 4.4 E5: Voltage error E5: Voltage error Voltage of power supply is too high or too low (the normal voltage between A Provide normal power supply and N (B and N, C and N) should be 163V~268V) Check the high voltage circuit.
  • Page 93 Service manual Mini MVD V4+ (20 to 45kW) 4.5 E6: DC fan motor error; EB: E6 protection appears twice in 10 minutes E6: DC fan motor error There has strong airflow against fan It belongs to normal protection wheel when the fan is running DC fan wiring connection is not Wiring connection consists with wiring consistent with wiring nameplate...
  • Page 94 Service manual Mini MVD V4+ (20 to 45kW) 4.6 EA: T3 pipe temperature protection in heating mode When T3 pipe temperature exceeds 27 C lasting for five minutes in heating mode, the unit will display EA error. EA: T3 pipe temperature protection in heating mode The outdoor ambient temperature is higher than the unit operating limitation...
  • Page 95 Service manual Mini MVD V4+ (20 to 45kW) 4.7 H0: Communication error between main control chip and module chip; H1: Communication error between main control chip and communication chip H0/H1 Power supply main PCB, Provide normal power supply transformer transformer terminals are abnormal①...
  • Page 96 Service manual Mini MVD V4+ (20 to 45kW) 4.8 H7: Quantity of indoor units decrease error H7 error will display when the quantity of indoor units decrease above 3 minutes. H7: Quantity of indoor units decrease error Fasten the communication Communication terminals P Q E terminals are loose...
  • Page 97 Service manual Mini MVD V4+ (20 to 45kW) 4.9 H8: High pressure sensor error When the discharge pressure is lower than 0.3MPa, the system will display H8 error, the ODU in standby. When the discharge pressure is back to normal, H8 disappears and normal operation resumes. H8: High pressure sensor error High pressure sensor connection Fasten the connection port...
  • Page 98 Service manual Mini MVD V4+ (20 to 45kW) 4.10 P1: High pressure protection When the pressure is over 4.4MPa, the system will display P1 protection, the ODU in standby. When the pressure is lower than 3.2MPa, P1 disappears and normal operation resumes. P1: High pressure protection The heat exchange of condenser is not good.
  • Page 99 Service manual Mini MVD V4+ (20 to 45kW) P2/H5: Low pressure protection System is lack of refrigerant①. (Refrigerant recharging is not Add refrigerant or check up according to the requirement, the leakage of the system or there has refrigerant leakage) Make sure all valves are open, clean The low pressure side is blocked②...
  • Page 100 Service manual Mini MVD V4+ (20 to 45kW) 4.12 P3: Current protection of inverter compressor P3: When the current of inverter compressor is over12A, the system will display P3 protection, the ODU in standby. When the current goes back to normal range, P3 disappears and normal operation resumes. P3: Compressor current protection Make sure the ratio of connectable The indoor load is too large①...
  • Page 101 Service manual Mini MVD V4+ (20 to 45kW) 4.13 P4: Discharge temperature protection; H6: P4 protection appears three times in 100 minutes P4/H6 T7C2/T7C3/T7C4 sensor is Replace the sensor short circuit or disabled①. System is lack of refrigerant②. (Refrigerant recharging is not Add refrigerant or check up according to the requirement, the leakage of the system...
  • Page 102 Service manual Mini MVD V4+ (20 to 45kW) P5: Condenser temperature protection T3 port on main control board is loose Fasten the T3 port Replace the sensor T3 sensor is short circuit or disabled① Make sure the ratio of connectable The indoor load is too large②...
  • Page 103 Service manual Mini MVD V4+ (20 to 45kW) 4.15 P6/H4: Module protection P6, L0~L9 error codes can’t display on digital tube automatically, these error codes will display on digital tube only through SW3 button (pressure SW3 ten times, every one second for a time) If the system display three times P6 protection in 60 minutes, the system will stop and display H4 error code.
  • Page 104 Service manual Mini MVD V4+ (20 to 45kW) 1) L0 troubleshooting Step 1: Compressor check Measure the resistance between each two of U, V, W terminals of the compressor, all the resistance should be the same and equal to 0.9~5 Ohms. (Fig. A and Fig. B) Measure the resistance between each of U, V, W terminals of the compressor to ground (Fig.
  • Page 105 Service manual Mini MVD V4+ (20 to 45kW) 2) L1/L4 troubleshooting Step 1: Check the DC voltage between 1 and 2 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 main PCB.
  • Page 106 Service manual Mini MVD V4+ (20 to 45kW) is higher than 580V, go to step 2. Step 2: Check the voltage between the two electrolytic capacitors, the normal value should be 510V~580V. Turn the measure range of the meter to 1kV, measure the voltage between two electrolytic capacitors...
  • Page 107 Service manual Mini MVD V4+ (20 to 45kW) If compressor A can start normally, that means compressor is OK, the control box of system A is malfunction, then raplace the main PCB of system A with correct wire connection. If compressor A can not start normally, that means compressor A is demaged, needs to be replaced. If there is no normal system nearby: Replace the main PCB of system A with correct connection, if compressor A can start normally, it means the main PCB which is replaced is damaged.
  • Page 108 Service manual Mini MVD V4+ (20 to 45kW) The oil is still transparent, The oil is still transparent, but but there is impunity in the there is impunity in the oil, the oil, the impunity may clog impunity may clog the filter the filter The oil becomes cloudy and gray...
  • Page 109 Service manual Mini MVD V4+ (20 to 45kW) The crankshaft is worn. The crankshaft is The scroll plate of the The scroll plate is worn. worn. compressor is worn. A normal bearing The bearing is worn seriously, The bearing is worn seriously, of the compressor it is damaged completely it is damaged completely...
  • Page 110 Service manual Mini MVD V4+ (20 to 45kW) Step 3: Replace the compressor Pour out some oil from each compressor; The oil is clean check the quality of the oil The oil is dirty Pour out all of the oil from the compressor, oil separator and gas-liquid separator Check the filter between the ball The filter is clean...
  • Page 111 Service manual Mini MVD V4+ (20 to 45kW) 3. Add oil to the compressor from the discharge pipe. The discharge pipe is connected to the oil pool of the compressor by the inner oil balance pipe, add oil from the discharge pipe with a funnel 4.
  • Page 112 Service manual Mini MVD V4+ (20 to 45kW) 4.16 P9/H9: DC fan module protection If the system display three times P9 protection in 60 minutes, the system will stop and display H9 error code. When the system displays H9 error code, the system can resume only by restarting the machine. At this time, malfunction should be disposed promptly to avoid further damage.
  • Page 113 Service manual Mini MVD V4+ (20 to 45kW) P9 protection analysis Fault indicator Power supply Digital Conditions lamp of fan indicator lamp tube Malfunction analysis module of fan module display Check the power supply circuit for fan module. Quantity Check whether there has power supply for lightning Power on of IDU or protection plate, whether the protective tube is broken,...
  • Page 114 Service manual Mini MVD V4+ (20 to 45kW) 4.17 PL/C7: Temperature protection of main inverter module When the temperature of inverter module is over 80 C, it will display PL protection. If the system display three times PL protection in 100 minutes, the system will stop and display C7 error code. When the system displays C7 error code, the system can resume only by restarting the machine.
  • Page 115 Service manual Mini MVD V4+ (20 to 45kW) Attached table 1: Resistance value of ambient temperature and pipe temperature sensor Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance value (kΩ) value (kΩ) value (kΩ) value (kΩ) (℃) (℃) (℃) (℃) 115.266 12.6431 2.35774...
  • Page 116 Service manual Mini MVD V4+ (20 to 45kW) Attached table 2: Resistance value of compressor discharge temperature sensor Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance value value (kΩ) value (kΩ) value (kΩ) (kΩ) (℃) (℃) (℃) (℃) 542.7 68.66 13.59 3.702 511.9...
  • Page 117 Service manual Mini MVD V4+ (20 to 45kW) Attached table 3: Commissioning and operating parameters of refrigerant system Conditions 1: Make sure outdoor unit can detect all the indoor units, the quantity of indoor units display steadily and be equal to actual quantity of installed indoor units.
  • Page 118 ASK FOR MORE INFORMATION Phone: (+34) 93 446 27 81 eMail: info@mundoclima.com TECHNICAL ASSISTANCE Phone: (+34) 93 652 53 57 www.mundoclima.com...

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