Midea MVUR252B-VA3 Service Manual
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Midea MVUR252B-VA3 Service Manual

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Библиотека СОК 
 
 
 
 
Service manual
MIV V5 Heat Recovery
DC INVERTER R410A
MVUR252B-VA3
MVUR280B-VA3
MVUR335B-VA3
MVUR400B-VA3
MVUR450B-VA3
 DM14-01.01.18en

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  • Page 1 Библиотека СОК   DM14-01.01.18en         Service manual MIV V5 Heat Recovery DC INVERTER R410A MVUR252B-VA3 MVUR280B-VA3 MVUR335B-VA3 MVUR400B-VA3 MVUR450B-VA3...

  • Page 2: Table Of Contents

    Contents Part 1 General Information ............... 1 Part 2 Selection Procedure .............. 16 Part 3 Part 3 Outdoor Unit Specifications & Performance ... 24 Part 4 Outdoor Unit Installation ............ 100 Part 5 MS Unit Installation ............. 132 Part 6 Troubleshooting ..............147  ...

  • Page 3: Part 1 General Information

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 1 General Information Features ....................2     Outdoor units line-up ................8     3. MS units lineup .................. 10   4. Indoor units lineup ................11   5. Nomenclature ..................13  ...

  • Page 4: Features

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1. Features 1.1 Energy saving 1.1.1 All DC inverter compressors All DC inverter compressors make the capacity output better distributed, and always work at 60-140Hz which is the most efficient range. It makes the efficiency more than 30% higher than the normal. New structure-enhanced mid-frequency performance Specially designed scroll profile for R410A More compact, weight reduced by 50%...
  • Page 5 1.2.4 High external static pressure High static pressure propeller and optimized fan guard can adapt to various installation environments. Midea now offers up to 60Pa*(0.24in.WG) external static pressure for customized applications (60Pa(0.24in.WG) is available customized for the 8-12HP model; 40Pa(0.16in.WG) is available customized for 14-16HP).
  • Page 6 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1.3 High reliability 1.3.1 Cycle duty operation In one combination, any of the outdoor unit can run as the master unit and master unit can cycle in a period, to realize the equal lifespan among the outdoor units. As a result extend the system lifespan significantly. Priority Priority Priority...
  • Page 7 1.4.2 Night silent operation mode Midea's Night Silent Mode feature which is easily set on the PCB board allows the unit to be set to vary time options during Non-Peak and Peak operation time optimizing the units noise output.
  • Page 8 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1.4.3 Continuous heating during defrost operation Each heat exchanger is defrosted by using heat transferred from one heat exchanger to the other in the outdoor unit. Outdoor Unit Outdoor Unit Outdoor Unit Heat Exchanger 1 Heat Exchanger 1 Heat Exchanger 1...
  • Page 9 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 1.5.4 Professional structure design Compressor is near the outside, and there is simple pipe system for convenient maintenance. The newly designed rotating control box is so excellent that it can rotate in a wide angle. It is convenient for the inspection and maintenance of the pipeline system and greatly reduced the time of dismount the electric control box.

  • Page 10: Outdoor Units Lineup

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 2. Outdoor units lineup  Outdoor units lineup The capacity range of outdoor units is from 8HP up to 64HP in 2HP increment. Maximum 64 indoor units with capacity up to 130% of total outdoor units can be connected as one refrigeration system. 18-32HP 8, 10 , 12, 14, 16HP 34-48HP...
  • Page 11 MIV V5 Heat Recovery DC Inverter R410A  Combination table Max. N Standard combination High efficiency combination Capacity connectable (HP) Model Combination type Model Combination type indoor units MVUR252B-VA3 8HP×1 MVUR252B-VA3 8HP×1 MVUR280B-VA3 10HP×1 MVUR280B-VA3 10HP×1 MVUR335B-VA3 12HP×1 MVUR335B-VA3 12HP×1 MVUR400B-VA3 14HP×1...

  • Page 12: Ms Units Lineup

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 3. MS units lineup 3.1 MS units which can be connected multiple indoor units Model name External appearance MS02/N1-C MS04/N1-C MS06/N1-C Specifications MS Model Max. number of all downstream indoor units MS02/N1-C MS04/N1-C MS06/N1-C 3.2 MS units which can be connected only one indoor unit...

  • Page 13: Indoor Units Lineup

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4. Indoor units lineup Cassette type Compact four-way One-way cassette Two-way cassette Four-way cassette cassette Capacity (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
  • Page 14 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Indoor units lineup Floor-standing/Ceiling & Floor/Console Cased floor-standing Ceiling & floor console Capacity (×100W) ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...

  • Page 15: Nomenclature

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 5. Nomenclature 5.1 Outdoor unit MVUH252B - VA3 Power - 1 phase, 50 Hz - 3 phases, 50 Hz Refrigerant - R410A - R22 Inverter (in)V(erter) - inverter S(tandard) – on/off Model, Modification A…Z, AA…ZZ Capacity index kW*10...
  • Page 16 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 5.2 MS unit MS 02 E / N1 - C Series code Refrigerant type N1: R410A E: The MS can connect only one indoor unit Omit: The MS can connect multiple indoor units MS type 02: Two groups refrigerant pipe 04: Four groups refrigerant pipe...
  • Page 17 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 5.3 Indoor unit MVC28A – VA1 Design features (may be absent) For example: G(rey), (hite) - color Power - 1 phase, 50 Hz - 3 phases, 50 Hz Refrigerant - R410A - R22 Inverter (in)V(erter) - inverter S(tandard) - on/off...

  • Page 18: Part 2 Selection Procedure

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 2 Selection Procedure Introduction ....................17     Unit selection (based on cooling load) ............22     Selection Procedure...
  • Page 19 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1. Introduction 1.1 Model selection procedure Select the model and calculate the capacity for each refrigerant system according to the procedure shown below.  Calculation of the indoor air-conditioning load, Calculate the maximum air-conditioning load for each room or zone.
  • Page 20 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A The indoor and outdoor unit combination is determined that the sum of indoor unit capacity index is nearest to and smaller than the capacity index at 100% combination ratio of each outdoor unit. Up to 8~16 indoor units can be connected to one outdoor unit.
  • Page 21 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en INDOOR UNIT COMBINATION TOTAL CAPACITY INDEX TABLE Indoor Unit Combination Ratio kW(Btu/h) Outdoor Unit 130% 120% 110% 100% 146.9 135.6 124.3 113.0 101.7 90.4 79.1 67.8 56.5 40(385600) (501200) (462700) (424100) (385600) (347000) (308400) (269900)
  • Page 22 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 1.4 Actual performance date Use OUTDOOR UNIT CAPACITY TABLES. Determine correct table according to the outdoor unit model and combination ratio. Enter the table at given indoor and outdoor temperature and find the outdoor unit capacity and power input. The individual indoor unit capacity (power input) can by calculated as follows.
  • Page 23 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1.5.2 Heating capacity modification H ( m ) - 1 0 - 2 0 - 3 0 - 4 0 - 5 0 - 6 0 - 7 0 - 8 0 - 9 0 - 1 0 0 - 1 1 0...
  • Page 24 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2. Unit selection (based on cooling load) 2.1 Given condition Condition: Cooling: indoor temperature 20 CWB, outdoor temperature 35 CDB; Cooling load Location Room A Room B Room C Room D Room E Room F Load kW(Btu/h) 2.1(7170)
  • Page 25 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 2.4 Conclusion Generally, we think this result is acceptable, so we can think we have accomplished the calculation. But if you think this result is not acceptable, you can repeat the above process. Remark: In this sample, the other capacity modification indexes don’t be considered and are assumed as 1.0.

  • Page 26: Part 3 Part 3 Outdoor Unit Specifications & Performance

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 3 Specifications & Performances 1. Specifications ..................25   2. Dimensions ....................46   3. Service space ..................49   4. Piping diagrams ..................51   5. Wiring diagram and field wiring ............. 53  ...

  • Page 27: Specifications

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1. Specifications 1.1 Outdoor unit specifications Independent unit specifications Model MVUR252B-VA3 MVUR280B-VA3 MVUR335B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 25.2 28.0 33.5 Capacity Btu/h 86,000 95,500 114,300 Cooling Power input 5.73...
  • Page 28 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Number of circuits 12,000 12,000 13,000 Outdoor air flow 7,060 7,060 7,650 Sound pressure level dB(A) Connectable Total capacity 50-130 50-130 50-130 indoor unit Max. quantity Net dimension (W×H×D) 1250×1615×765 Packing (W×H×D) 1305×1790×820 Outdoor unit Net weight...
  • Page 29 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Independent unit specifications Model MVUR400B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 40.0 45.0 Capacity Btu/h 136,500 153,500 Cooling Power input 11.30 13.24 kW/kW 3.54 3.40 45.0 50.0 Capacity Btu/h 153,500 170,600 Heating Power input...
  • Page 30 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 8,830 8,830 Sound pressure level dB(A) Connectable Total capacity 50-130 50-130 indoor unit Max. quantity Net dimension (W×H×D) 1250×1615×765 1250×1615×765 Packing (W×H×D) 1305×1790×820 1305×1790×820 Outdoor unit Net weight Gross weight Type R410A R410A Refrigerant Factory charged...
  • Page 31 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR532B-VA3 MVUR560B-VA3 MVUR615B-VA3 MVUR252B-VA3 MVUR280B-VA3 MVUR280B-VA3 Model Independent unit MVUR280B-VA3 MVUR280B-VA3 MVUR335B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 53.2 56.0 61.5 Capacity Btu/h 181,500...
  • Page 32 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Net dimension (W×H×D) (1250×1615×765)×2 Packing (W×H×D) (1305×1790×820)×2 Outdoor unit Net weight 255×2 255×2 255×2 Gross weight 273×2 273×2 273×2 Type R410A R410A R410A Refrigerant Factory charged 10×2 10×2 10×2 Additional Oil type FVC68D FVC68D FVC68D...
  • Page 33 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR680B-VA3 MVUR730B-VA3 MVUR800B-VA3 MVUR280B-VA3 MVUR280B-VA3 MVUR400B-VA3 Model Independent unit MVUR400B-VA3 MVUR450B-VA3 MVUR400B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 68.0 73.0 80.0 Capacity Btu/h 232,000 249,000 273,000 Cooling...
  • Page 34 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×2 Packing (W×H×D) (1305×1790×820)×2 Outdoor unit Net weight 255+303 255+303 303×2 Gross weight 273+322 273+322 322×2 Type R410A R410A R410A Refrigerant Factory charged 10+13 10+13 13×2 Additional Oil type...
  • Page 35 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR 850B-VA3 MVUR900B-VA3 MVUR960B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR280B-VA3 Model Independent unit MVUR450B-VA3 MVUR450B-VA3 MVUR280B-VA3 MVUR400B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 85.0 90.0 96.0 Capacity Btu/h 290,000 307,000...
  • Page 36 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Sound pressure level dB(A) Total capacity 50-130 50-130 50-130 Connectable indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×2 (1250×1615×765)×3 Packing (W×H×D) (1305×1790×820)×2 (1305×1790×820)×3 Outdoor unit Net weight 303×2 303×2 255×2+303 Gross weight 322×2 322×2 273×2+322...
  • Page 37 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR1010B-VA3 MVUR1065B-VA3 MVUR1130B-VA3 MVUR280B-VA3 MVUR280B-VA3 MVUR280B-VA3 Model Independent unit MVUR280B-VA3 MVUR335B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 101.0 106.5 113.0 Capacity Btu/h 344,500...
  • Page 38 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 22,950 23,540 24,720 Sound pressure level dB(A) Connectable Total capacity 50-130 50-130 50-130 indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×3 Packing (W×H×D) (1305×1790×820)×3 Outdoor unit Net weight 255×2+303 255+303×2 Gross weight 273×2+322 273+322×2 Type...
  • Page 39 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR1200B-VA3 MVUR1250B-VA3 MVUR1300B-VA3 MVUR400B-VA3 MVUR400B-VA3 MVUR400B-VA3 Model Independent unit MVUR400B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 120.0 125.0 130.0 Capacity Btu/h 409,500...
  • Page 40 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Connectable Total capacity 50-130 50-130 50-130 indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×3 Packing (W×H×D) (1305×1790×820)×3 Outdoor unit Net weight 303×3 303×3 303×3 Gross weight 322×3 322×3 322×3 Type R410A R410A R410A Refrigerant Factory charged...
  • Page 41 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR1350B-VA3 MVUR1432B-VA3 MVUR1460B-VA3 MVUR450B-VA3 MVUR252B-VA3 MVUR280B-VA3 MVUR450B-VA3 MVUR280B-VA3 MVUR280B-VA3 Model Independent unit MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 135.0 143.2...
  • Page 42 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 26,490 31,780 31,780 Sound pressure level dB(A) Connectable Total capacity 50-130 50-130 50-130 indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×3 (1250×1615×765)×4 Packing (W×H×D) (1305×1790×820)×3 (1305×1790×820)×4 Outdoor unit Net weight 303×3 255×2+303×2 Gross weight 322×3 273×2+322×2...
  • Page 43 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR1515B-VA3 MVUR1580B-VA3 MVUR1650B-VA3 MVUR280B-VA3 MVUR280B-VA3 MVUR400B-VA3 MVUR335B-VA3 MVUR400B-VA3 MVUR400B-VA3 Model Independent unit MVUR450B-VA3 MVUR450B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 151.5 158.0 165.0...
  • Page 44 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 55,000 57,000 60,000 Outdoor air flow 32,370 33,550 35,320 Sound pressure level dB(A) Total capacity 50-130 50-130 50-130 Connectable indoor unit Max. quantity inch (49-7/32×63-9/16×30-1/8)×4 Net dimension (W×H×D) (1250×1615×765)×4 inch (51-9/16×70-1/2×32-1/2)×4 Packing (W×H×D) (1305×1790×820)×4 Outdoor unit Net weight...
  • Page 45 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Combination unit specifications Combination unit MVUR1700B-VA3 MVUR1750B-VA3 MVUR1800B-VA3 MVUR400B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR400B-VA3 MVUR450B-VA3 MVUR450B-VA3 Model Independent unit MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 MVUR450B-VA3 380-415/3/50 380-415/3/50 380-415/3/50 Power supply V/Ph/Hz 380-415/3/60 380-415/3/60 380-415/3/60 170.0 175.0 180.0...
  • Page 46 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Sound pressure level dB(A) Total capacity 50-130 50-130 50-130 Connectable indoor unit Max. quantity Net dimension (W×H×D) (1250×1615×765)×4 Packing (W×H×D) (1305×1790×820)×4 Outdoor unit Net weight 303×4 303×4 303×4 Gross weight 322×4 322×4 322×4 Type R410A...
  • Page 47 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1.2 MS units specifications MS units which can be connected multiple indoor units Mode MS02/N1-C MS04/N1-C MS06/N1-C Max. indoor unit groups Max. number of each group indoor units Max. number of all downstream indoor units 4×2=8 4×4=16 4×6=24...

  • Page 48: Dimensions

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2. Dimensions 2.1 Overall dimensions MVUR252B-VA3, MVUR280B-VA3, MVUR335B-VA3, MVUR400B-VA3, MVUR450B-VA3 Unit: in.(mm) 49-7/32(1250) 2.2 Section dimensions MVUR252B-VA3, MVUR280B-VA3 Specifications & Performances...
  • Page 49 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en MVUR335B-VA3 MVUR400B-VA3, MVUR450B-VA3 Specifications & Performances...
  • Page 50 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2.3 MS dimensions 2.3.1 MS body dimensions Unit mm Model MS02/N1-C 7/8"14UNF-2A 5/8"18UNF-3A MS04/N1-C 7/8"14UNF-2A 5/8"18UNF-3A MS06/N1-C 7/8"14UNF-2A 5/8"18UNF-3A MS02E/N1-C 7/8"14UNF-2A 5/8"18UNF-3A MS04E/N1-C 7/8"14UNF-2A 5/8"18UNF-3A 2.3.2 MS pipe dimensions Low pressure gas pipe High pressure gas pipe Liquid pipe Pipe connec to intdoor unit...

  • Page 51: Service Space

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 3. Service space 3.1 Service space for outdoor unit  Ensure enough space for maintenance. The modules in the same system must be on the same height. When installing the unit, leave enough space for maintenance. Unit: in.(mm) (Air outlet) >39-3/8(1000)
  • Page 52 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A air from affecting the heat exchange effect, please add an air director onto the exhaust hood of the outdoor unit to facilitate heat dissipation. See the figure below. The height of the air director is HD (namely H-h). Please make the air director on site.

  • Page 53: Piping Diagrams

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4. Piping diagrams MVUR252B-VA3, MVUR280B-VA3, MVUR335B-VA3 EXV-A Liquid valve EXV-B Heat exchanger 1 Heat exchanger 2 Low pressure gas valve High pressure gas valve Oil balance valve Pressure Pressure switch release Pressure...
  • Page 54 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Oil separator: It is used to separate oil from high pressure and high temperature gas refrigerant, which is pumped out from compressor. The separation efficiency is up to 99%, it makes the oil return back to each compressor very soon.

  • Page 55: Wiring Diagram And Field Wiring

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 5. Wiring diagram and field wiring 5.1 Wiring diagram MVUR252B-VA3, MVUR280B-VA3, MVUR335B-VA3 Specifications & Performances...
  • Page 56 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A MVUR400B-VA3, MVUR450B-VA3 Specifications & Performances...
  • Page 57 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 5.2 Field wiring 5.2.1 Signal wire between outdoor unit and indoor unit Signal wire of indoor/outdoor unit adopts 3-core shielded wire (0.75mm ) which has polarity, please connect it correctly. outdoor unit outdoor unit outdoor unit outdoor unit...

  • Page 58: Electric Characteristics

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 6. Electric characteristics Units Power supply Compressor Model Voltage Min. Max. TOCA MVUR252B-VA3 380~415 18.4 20.8 17.4 0.42 MVUR280B-VA3 380~415 20.6 22.1 17.4 0.42 MVUR335B-VA3 380~415 21.8 22.8 17.4 0.42 17.4+ MVUR400B-VA3 380~415 27.9...

  • Page 59: Capacity Tables

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 7. Capacity tables 7.1 Cooling capacity tables MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination...
  • Page 60 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) Outdoor DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Combination WB:14 WB:16 WB:18 WB:19...
  • Page 61 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19...
  • Page 62 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19...
  • Page 63 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19...
  • Page 64 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 65 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 66 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 67 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 68 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 69 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 70 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 71 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 72 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 73 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 74 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 75 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 76 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 77 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 78 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 79 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 80 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 81 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 82 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Cooling capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 83 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Cooling capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C) DB:20.8 DB:23.3 DB:25.8 DB:27 DB:28.2 DB:30.7 DB:32 Outdoor Combination WB:14 WB:16 WB:18 WB:19 WB:20 WB:22 WB:24...
  • Page 84 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 7.2 Heating capacity tables MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination °C DB °CWB -19.8 17.48 4.24 17.40 4.54 17.32...
  • Page 85 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 17.23 5.45 17.14 5.68 17.14...
  • Page 86 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR252B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 16.93 6.67 16.85 6.83 16.85...
  • Page 87 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 20.40 5.18 20.30 5.54 20.20 5.91 20.20...
  • Page 88 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 20.10 6.66 20.00 6.94 20.00 7.23 19.90...
  • Page 89 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR280B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 19.75 8.15 19.66 8.34 19.66 8.54 19.66...
  • Page 90 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 24.28 6.16 24.16 6.59 24.05 7.03 24.05...
  • Page 91 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 23.93 7.93 23.81 8.26 23.81 8.60 23.69...
  • Page 92 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR335B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 23.52 9.69 23.40 9.92 23.40 10.16 23.40...
  • Page 93 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 29.14 7.91 29.00 8.46 28.86 9.02 28.86...
  • Page 94 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 28.71 10.17 28.57 10.59 28.57 11.03 28.43...
  • Page 95 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR400B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 28.22 12.44 28.08 12.73 28.08 13.04 28.08...
  • Page 96 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 32.38 9.04 32.22 9.67 32.07 10.32 32.07...
  • Page 97 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Heating capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °CWB -19.8 31.91 11.63 31.75 12.11 31.75 12.61 31.59...
  • Page 98 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Heating capacity table MVUR450B-VA3 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature(°C DB) Outdoor temperature Combination (%)) °C DB °C WB -19.8 31.36 14.22 31.20 14.55 31.20 14.90...

  • Page 99: Operation Limits

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 8. Operation limits Cooling Heating Indoor temperature (DB) Indoor temperature (DB) Note: 1. These figures assume the following operating conditions: Equivalent piping length: 7.5m Level difference: 0 2. If the system is running in cooling mode, when the ambient temperature is lower than -5 C or higher than C, the unit will stop for protection control.

  • Page 100: Sound Levels

    Model Sound pressure level d(B)A MVUR252B-VA3 MVUR280B-VA3 MVUR335B-VA3 MVUR400B-VA3 MVUR450B-VA3 Sound pressure spectrum MVUR252B-VA3, MVUR280B-VA3 MVUR335B-VA3 Audibility limits of Audibility limits of continuous white sound continuous white sound 125 250 500 1000 2000 4000 8000 125 250 500 1000...

  • Page 101: Accessories

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 10. Accessories Branch joint of outdoor & indoor unit Packing Size Net/gross Optional accessories Model name Function (mm) Weight (kg) FQZHW-02SB 272×167×232 1.6/2.2 Branch Joint FQZHW-03SB 472×157×312 3.9/5.0 outdoor unit Distribute the FQZHW-04SB 745×160×335 6.2/7.5...

  • Page 102: Part 4 Outdoor Unit Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 4 Outdoor Unit Installation Select installation position ..............101     Foundation for installation ..............102     Master and slave unit setting ..............104     Installation space ..................105  ...

  • Page 103: Select Installation Position

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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 104: Foundation For Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2. Foundation for installation  A solid, correct base can: Avoid the outdoor unit from sinking and avoid the abnormal noise generated due to base. Base types: Steel structure base or concrete base (See the figure below for the general making method) ...
  • Page 105 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en  Position illustration of screw bolt (Unit: mm) 5/8×7/8(15×23)long U-shape hole Size (mm) 8-16HP 1120 1250 Installation Procedure...

  • Page 106: Master And Slave Unit Setting

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 3. Master and slave unit setting When the quantity of outdoor unit is more than two in one system, the outdoor unit should be placed form large capacity unit to small capacity unit. The largest capacity unit must be placed at the first branch site, and be set as master unit, while the other are set as slave units.

  • Page 107: Installation Space

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4. Installation space  Ensure enough space for maintenance. The modules in the same system must be on the same height.  When installing the unit, leave enough space for maintenance. Unit: in.(mm) (Air outlet) >39-3/8(1000) 4(100)＜...
  • Page 108 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A unit to facilitate heat dissipation. See the figure below. The height of the air director is HD (namely H-h). Please make the air director on site. Unit: in.(mm)  If miscellaneous articles are piled around the outdoor unit, such articles must be 800mm below the top of the outdoor unit.

  • Page 109: Air Ventilation Assembly Installation

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 5. Air ventilation assembly installation The ventilation assembly is provided at the field installation. When installing, please take off the mesh cover firstly, and then install the unit as the following method. Example A Unit: in.(mm) Support...
  • Page 110 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 28-9/16(725) 12 ST3.9 self-threading screws 12-Φ1/8(3.2) Remove the two iron filters firstly 8-3/8 16-3/16 16-3/16 (213) (411) (411) 3/8(10) 8-3/8 16-3/16 16-3/16 (213) (411) (411) 49-7/32(1250) Unit: mm Example B Example A A≥300 A≥...

  • Page 111: Refrigerant Piping Installation

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 6. Refrigerant piping installation 6.1 Refrigerant piping length permitted value Outdoor unit (one or more outdoor units) (71) Indoor unit Ⅰ (71) The first line branch pipe (140) (28) Max. equivalent single piping length: 656ft(200m) Max.
  • Page 112 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2. The equivalent length of each branch pipe is 0.5m. 3. The allowable piping length from the first branch joint to the farthest indoor unit should be equal to or less than 40m, but when the following conditions are all met, the allowable length can be extended to 90m.
  • Page 113 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Indoor unit main pipe L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12, L13 Indoor unit auxiliary pipe between MS and downstream branch joint a, g, j, k Indoor unit auxiliary pipe from indoor unit to the nearest branch joint or b, c, d, e, f, h, i, l, m, n, p, q, r direct connected MS Branch pipe assembly between main pipe and MS...
  • Page 114 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A  Outdoor unit branch pipe assembly Outdoor Illustration unit Qty. 2 units Main pipe 3 units Main pipe 4 units Main pipe  Table 3: Outdoor unit connection pipe selection (g1, g2, g3, g4, G1, G2) Unit: mm Pipe Low pressure gas pipe High pressure gas pipe...
  • Page 115 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 6.3 Example The example is as blow: Provided that the capacity of outdoor unit is (16+12+10) HP, the equivalent length of all pipes in this system is larger than 90m, the pipe length from the 1 branch joint to the farthest indoor unit is less than 40m, and the pipe from indoor unit to the nearest branch joint or direct connected MS is less than 10m.
  • Page 116 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A  The downstream indoor units of L11 are N8, N9 and N10, which capacity is 2.8+5.6×2=14 kW. Refer to table 1, the indoor unit main pipe L11 is Φ19.1/ Φ15.9 /Φ9.53, select MS02/N1-C for MS6. ...
  • Page 117 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 6.4 Piping connection between outdoor units All connection pipes between outdoor units should be horizontally, it is not allowed the concave at junction site. The height of each connection pipe between outdoor units is not allowed to over the height of refrigerant outlet pipe.
  • Page 118 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Installation Procedure...

  • Page 119: Caution For Brazing

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 7. Caution for brazing  Make sure to blow through with nitrogen when brazing. Blowing through with nitrogen prevents the creation of large quantities of oxidized film on the side of the pipe. An oxidized film adversely affects valves and compressors in the refrigerating system and prevents proper operation.

  • Page 120: Remove Dirt Or Water In The Piping

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 8. Remove dirt or water in the piping  Make sure there is no any dirt or water in the pipe before connecting the piping to the outdoor units.  Wash the piping with high pressure nitrogen, never use refrigerant of the outdoor unit to do that. Installation Procedure...

  • Page 121: Gas Tightness Test

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 9. Gas tightness test Charge 40kgf/cm nitrogen gas from the high-pressure gas valve from the meter connector. Pressure inside should be maintained no less than 24 hrs. Indoor unit Nitrogen Liquid pipe Nitrogen High-pressure gas pipe Nitrogen...

  • Page 122: Vacuum

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 10. Vacuum  Use the vacuum pump which vacuum level lower than -0.1MPa and the air discharge capacity above 40L/min.  The outdoor unit is not necessary to vacuum, don’t open the outdoor unit gas and liquid pipe shut-off valves. ...
  • Page 123 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Respectively connect the vacuum pump in the gas balance valve and oil balance valve Perform the pump (last for 10 minutes or above) Close the pressure gauge and vacuum pump in turn Open the gas balance valve and oil balance valve of the outdoor unit Remove the pressure gauge and vacuum pump After the system power outages, switch the code S5...

  • Page 124: Additional Refrigerant Charge

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 11. Additional refrigerant charge  Calculate the additional refrigerant charge according to the diameter and the length of the liquid side pipe of the outdoor/indoor unit connection. The refrigerant is R410A. Note: Assume equivalent pipe length of the branch joint is 0.5m, and MS is 1m (for calculation purposes). The refrigerant charge of MS02 is 0.3kg/per, MS04/MS06 is 0.5kg/per.

  • Page 125: Electric Wiring Installation

    Three-phase power supply monitoring contros 12.2 Electric characteristics Units Power supply Compressor Model Voltage Min. Max. TOCA MVUR252B-VA3 380~415 18.4 20.8 17.4 0.42 MVUR280B-VA3 380~415 20.6 22.1 17.4 0.42 MVUR335B-VA3 380~415 21.8 22.8 17.4 0.42 17.4+...
  • Page 126 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A FLA: Full Load Amps. (A) KW: Rated Motor Output (KW) 12.3 Electric wiring installation Note:  Please select power supply for indoor unit and outdoor unit separately.  The power supply should have specified branch circuit with leakage protector and manual switch. ...
  • Page 127 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Power facilities 1 Outdoor unit (with leakage protector) Outdoor unit Leakage protector Manual switch Outdoor unit Outdoor unit Branch box Outdoor unit Power facilities 2 (with leakage protector) Outdoor unit 12.3.2 Indoor unit powering supply wiring Leakage protector Manual switch Branch box...
  • Page 128 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A The shield net should be grounded at the wiring terminal of outdoor unit. The inlet and outlet wire net of indoor communication wire should be connected directly and could not be grounded, and form open circuit at the shield net of final indoor unit.
  • Page 129 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Outdoor Unit Outdoor Unit Outdoor Unit Outdoor Unit (Master) (Slave) (Slave) (Slave) CCM03 To RS485/RS232 (F1,F2,E) (X,Y,E) (H1,H2,E) (H1,H2,E) (H1,H2,E) Converter (K1,K2,E) (K1,K2,E) (K1,K2,E) CCM02 (P,Q,E) To RS485/RS232 (P,Q,E) (P,Q,E) (F1,F2,E) (K1,K2,E) query Previous Page up...
  • Page 130 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 12.5 Dial switch setting S1: Starting time setting Starting time is 10 minutes Starting time is 12 minutes (default) S2: Night silent time setting Night silent time is 6h/10h (default) Night silent time is 6h/12h Night silent time is 8h/10h Night silent time is 8h/12h S3: Silent mode selection...
  • Page 131 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Only 0, 1, 2, 3, 4 are available. 0: 8HP; 1: 10HP; 2: 12HP; 3: 14HP; 4: 16HP ENC4: Network address setting Only 0, 1, 2, 3, 4, 5, 6, 7 are available. Installation Procedure...

  • Page 132: Running Test

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 13. Running test 13.1 Inspection and confirmation before commissioning  Check and confirm that refrigeration pipe line and communication wire of indoor and outdoor units have been connected to the same refrigeration system. Otherwise, operation troubles shall happen. ...
  • Page 133 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en  Calculate the critical thickness through following steps, and take necessary actions. 1. Calculate the refrigerant charge A 2. Total refrigerant charge = delivered refrigerant charge (nameplate) + supplemental refrigerant charge Leakage detector alarming device 3.

  • Page 134: Part 5 Ms Unit Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 5 MS Unit Installation Select installation position ............. 133     Installation space ................133     Body installation ................134     Drain pipe installation ..............135     Refrigerant piping installation ............136  ...

  • Page 135: Select Installation Position

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1. Select installation position A place can provide enough installation and maintenance space. Horizontal ceiling and its building construction is able to withstand the set’s weight. A place where the connecting pipes and drain pipes can be connected easily. The installation location should consider the length of the refrigerant pipe connected with the outdoor and indoor units;...

  • Page 136: Body Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 3. Body installation 3.1 Install the Φ10mm hoisting screw Please useΦ10mm hoisting screw. Remove the ceiling: For different architectural structure, details please contact with indoor decoration personnel.  Ceiling: For make sure the ceiling level and for avoiding to the ceiling vibration, it must be strengthened the ceilingplate base frame.

  • Page 137: Drain Pipe Installation

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 3.4 Hanging the MS Adjust the nut’s site, the interval between gasket (Down Side) and the ceiling should according to actual construction. Hanging Bolt Nut(Up Side) Gasket(Up Side) Installing lug Gasket(Down Side) Nut(Down Side) Down Side of the ceiling Hang the nut of hanging screw bolt into the slotted hole of the installing ear.

  • Page 138: Refrigerant Piping Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Unit: in.(mm) 6. Central install the drain pipes please follow below diagram to match pipes. As long as possible （about 4(100)) Downside gradient VP30 over 1/100 Unit: in.(mm) 7. The end of the drain pipe should leave the ground or the bottom of the drain tank more than 50mm, and should not put into the water.
  • Page 139 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) indoor unit max:4 units, max capacity:16kW(54.6kBtu/h) Max.
  • Page 140 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Apply refrigerant oil When connecting or disconnecting the pipe, be sure to use two spanners concurrently. Do not rest the weight of the connective pipe on the adapter of the indoor unit. Too heavy load on the adapter of the indoor unit may deform the pipe and thus affect the cooling/heating effect.
  • Page 141 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 5.4 Pipe connection 1. Flare  Use a pipe cutter to cut off the pipe. Burr Coarse Slant  Pull the pipe into the rear flare of the connective nut. A mm Outer diameter 90 °...

  • Page 142: Electric Wiring Installation

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Protect with wet towel when brazing Pipe connection from outdoor unit Low pressure gas pipe connection(Brazing) High pressure gas pipe connection(Brazing) Liquid pipe connection(Brazing) Pipe connection to intdoor unit Gas pipe(Flare) Liquid pipe(Flare) 5.6 Airtight test The refrigerant pipe after installation and before connect to the outdoor unit, it must undergo the airtight test with 3.92 MPa nitrogen for 24 hours from the low pressure gas pipe, high pressure gas pipe and liquid pipe.
  • Page 143 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 6.1 Power supply specifications The power supply cable specifications are as follows. In case power capacity is too low may result in over-heating of piping that would be burned out the unit. Item Power switch Power supply cable...
  • Page 144 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A MS02/N1-C, MS02/N1-C TRANS1 TRANS2 M-I(5,6) M-I(1~4) BLUE T4C T4C1 P Q E P Q E P Q E P Q E P Q E P Q E P Q E POWER IN TO INDOOR6 TO INDOOR5 TO INDOOR4 TO INDOOR3...
  • Page 145 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en MS04E/N1-C TRANS1 TRANS2 M-I(1~4) BLUE T4C T4C1 P Q E P Q E POWER IN TO INDOOR TO OUTDOOR System wiring diagrams MS02/N1-C, MS04/N1-C, MS06/N1-C MS Unit Installation...
  • Page 146 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A MS02E/N1-C, MS04E/N1-C Note: 1. The signal wire must use shielding wire. User other wires might cause signal interference and lead to malfunction. 2. All the shielding wires network should be interconnected, and finally connected together to the metal plate grounding. 3.

  • Page 147: Running Test

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 6.4 Spot check instruction MS Spot check keys SW1-SW6 are separately corresponded to No.1-6 system Content The quantity of downstream indoor units of this MS The operation mode of this MS Subcooling inlet temperature (T1C2) Subcooling outlet temperature (T1C1) Total T2(B) average value back from outdoor unit Indoor unit T2(B) value under this MS...

  • Page 148: Trial Running

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 8. Trial running Use the wired controller to control the operation of the unit, check the following items according to the instruction. If there is error, check the error according to the instruction and solve them. 8.1 Indoor unit 1) Check whether the switch of the wired/remote controller is normal;...

  • Page 149: Part 6 Troubleshooting

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Part 6 Troubleshooting Outdoor electric control box assembly instructions ....148     Outdoor main control board instructions ........150     Error code table ................157     Troubleshooting ................159  ...

  • Page 150: Outdoor Electric Control Box Assembly Instructions

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 1. Outdoor electric control box assembly instructions 8/10/12HP Bottom layer of electric control box Top layer of electric control box Content Electric control box assembly Three phase bridge Inverter module Outdoor current detection board Outdoor power supply board DC fan module Intermediate adapter board...
  • Page 151 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 14/16HP Bottom layer of electric control box Top layer of electric control box Content Electric control box assembly Inverter module Three phase bridge Temperature sensor Outdoor power supply board Outdoor current detection board Outdoor power supply board DC fan module Intermediate adapter board...

  • Page 152: Outdoor Main Control Board Instructions

    MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 2. Outdoor main control board instructions 2.1 Main PCB ports instructions Troubleshooting...
  • Page 153 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Outdoor main PCB ports instructions Port code Content Port voltage CN10 Discharge temperature detection port of inverter compressor A DC 0~5V (in dynamic change) CN11 Discharge temperature detection port of inverter compressor B DC 0~5V (in dynamic change) Inverter module temperature detection port DC 0~5V (in dynamic change)
  • Page 154 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 2.2 Main PCB parts instructions Troubleshooting...
  • Page 155 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 2.2.1 Spot check content instructions Normal Content (present frequency) Note display 0 - - Outdoor unit address 0, 1, 2, 3 1 - - Outdoor unit capacity setting Refer to note 1 2 - - Outdoor unit quantity Available for main outdoor unit...
  • Page 156 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en When the outdoor unit is in standby, the first two numbers on LED digital tube will display the address of the outdoor unit, and the last two numbers display the indoor unit’s quantity which can communicate with outdoor unit. When the outdoor unit is operating, it will display the rotation frequency of the compressor.
  • Page 157 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Dial switch setting ENC3+S12: Indoor unit quantity setting ENC3 The quantity of indoor unit is 0-15 ENC3 The quantity of indoor unit is 16-31 ENC3 The quantity of indoor unit is 32-47 ENC3 The quantity of indoor unit is 48-63 ENC1: Outdoor unit address setting...
  • Page 158 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 2.3 LED on main control board instructions LED3 LED2 LED1 LED5 LED7 LED4 LED6 LED1: Power supply indicator lamp. The lamp will be on if the power supply is normal. LED2: Running indicator lamp. The lamp will be on if the system running is normal. LED3: Malfunction indicator lamp of network centralized control chip.

  • Page 159: Error Code Table

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 3. Error code table Error code Content Note Only display on the faulty slave unit, all the ODUs are in Communication error between outdoor units standby. Phase sequence error Display on the faulty unit, all the ODUs are in standby.
  • Page 160 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en DC generatrix low voltage error Display after P6 displaying for one minute DC generatrix high voltage error Display after P6 displaying for one minute Reserved MCE error/ synchronization/ closed loop Display after P6 displaying for one minute Zero speed protection Display after P6 displaying for one minute Reserved...

  • Page 161: Troubleshooting

    DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4. Troubleshooting 4.1 E0: Communication error between outdoor units The error only display on faulty slave unit, all the ODU will be standby. E0: Communication error between outdoor units ODU addresses (ENC1) are set incorrectly (the master unit address should be set as 0, slave Reset the ODU addresses units addresses should be set from 1 to 3, and...
  • Page 162 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.2 E1: Phase sequence error The error only display on faulty unit, all the ODU will be standby. E1: Phase sequence error The 3-phase sequence of power supply is wrong. (The A, B, C terminal of three-phase Exchange any two of the power supply should meet compressor phase 3-sequence...
  • Page 163 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.3 E2: Communication error between indoors and the master unit The error only display on faulty slave unit, all the ODU will be standby. E2: Indoor units and outdoor unit communication error Communication wires P, Q, E are Reconnect the communication short circuit or disconnected (Measure...
  • Page 164 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en Note: 1. Press the manual button on display board of indoor unit for 5 seconds, the communication address code of indoor unit will display; Codes are as follows: Indicator light Running Timer Fan/defend cold fan Warning Code...
  • Page 165 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Pressing continued the manual button for 10 seconds:  If all the LED lights turn off, that means the capacity code is 0 and the capacity of indoor units is 22×100W(7510Btu/h);  If the “Timer” and “Alarm” lights are normally on, that means the capacity code is 5=(4＋1) and the capacity of indoor unit is 71×100W(24230Btu/h);...
  • Page 166 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.4 E4: Temperature senor (ambient temperature sensor T4, pipe temperature sensor T3/T5) E7: Discharge temperature sensor error The error only display on faulty unit, all the ODU will be standby. E4/H7: Temperature sensor error Fasten the temperature Temperature sensor port sensor port...
  • Page 167 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.5 E5: Voltage error The error only display on faulty unit, all the ODU will be standby. 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 198V~242V)
  • Page 168 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.6 E8: Outdoor unit address is wrong The error only display on faulty slave unit, all the ODU will be standby. E8: Outdoor unit address is wrong The addresses should be set less The ODU's address is more than 3 or be set repeatedly than 3 and differently...
  • Page 169 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.8 H0: Communication error between main control chip and inverter driver chip H1: Communication error between main control chip and communication chip The error only display on faulty unit, all the ODU will be standby. H0/H1 Power supply...
  • Page 170 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.9 H2: Quantity of outdoor unit decreased; H3: Quantity of outdoor unit increased The error only display on master unit, all the ODU will be standby. H2/H3 Communication wire between Fasten the communication wire outdoor units is loosen Some outdoor units’...
  • Page 171 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.10 H7: Quantity of indoor units decrease error The error only display on master unit, all the ODU will be standby. It will display when the quantity of indoor units decrease above 3 minutes. H7: Quantity of indoor units decrease error Fasten the communication...
  • Page 172 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.11 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 173 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.12 XHd: Slave units malfunction (X stands for corresponding slave unit) XHD is only displayed on master unit. X stands for corresponding slave unit. If X is 1, it means no.1 slave unit has problem, then you should check no.1 slave unit.
  • Page 174 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.14 P2/H5: Low pressure protection 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. H5 error will display when system appear 3 times P2 protection in 60 minutes, it cannot resume automatically, and it can resume only by restarting the machine.
  • Page 175 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.15 XP3: Current protection of inverter compressor (When X is 1, it means A compressor; 2 means B compressor) P3: When the current of inverter compressor is over 12A, the system will display P3 protection, the ODU in standby.
  • Page 176 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.16 P4: Discharge temperature protection; H6: P4 protection appears three times in 100 minutes The error only display on faulty unit, all the ODU will be standby. H6 error cannot resume automatically, and it can resume only by restarting the machine.
  • Page 177 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.17 P5: Condenser temperature protection When condenser temperature is over 65 C, the system will display P5 protection, the ODU in standby. When the temperature goes back to normal range, P5 disappear and normal operation resumes. P5: Condenser temperature protection T3/T5 port on main control board is loose Fasten the T3/T5 port...
  • Page 178 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 4.18 XP6: Inverter module protection (When X is 1, it means A inverter module; 2 means B inverter module) H4: P6 protection appears three times in 60 minutes When the system displays H4 error code, the system can resume only by restarting the machine. At this time, malfunction should be disposed promptly to avoid further damage.
  • Page 179 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 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 180 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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 181 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 3) L2 troubleshooting Step 1: Check the DC voltage between 1 and 2 terminal, the normal value should be 510V~580V, if the voltage 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...
  • Page 182 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en system B, make sure that the U, V, W terminals are connected in right order, then start system B. 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.
  • Page 183 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A bad, the oil need to be replaced. The oil is black, it has been carbonized The oil is a little yellowing, but it is clear and transparent, the quality is OK The oil is still transparent, The oil is still transparent, but but there is impunity in the there is impunity in the oil, the...
  • Page 184 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en The crankshaft is worn. The crankshaft is The scroll plate of the The scroll plate 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 A clean filter (on the suction...
  • Page 185 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A Step 3: Replace the compressor Pour out some oil from each compressor The oil is clean (Inv & Fix); 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 186 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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 187 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.19 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 188 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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 189 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 4.20 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 190 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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) -20(-4) 115.266 20(68) 12.6431 60(140) 2.35774 100(212)
  • Page 191 DM14-01.01.18en MIV V5 Heat Recovery DC Inverter R410A 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) -20(-4) 542.7 20(68) 68.66 60(140) 13.59 100(212) 3.702 511.9...
  • Page 192 MIV V5 Heat Recovery DC Inverter R410A DM14-01.01.18en 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.

This manual is also suitable for:

Mvur280b-va3Mvur335b-va3Mvur400b-va3Mvur450b-va3R410a

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