DM en. Service manual MIV V5 HEAT PUMP DC INVERTER R410A MVUH252B-VA3 MVUH280B-VA3 MVUH335B-VA3 MVUH400B-VA3 MVUH450B-VA3 MVUH500B-VA3

Transcription

1 DM en Service manual MIV V5 HEAT PUMP DC INVERTER R410A MVUH252B-VA3 MVUH280B-VA3 MVUH335B-VA3 MVUH400B-VA3 MVUH450B-VA3 MVUH500B-VA3

2 Contents Part 1 General Information... 1 Part 2 Selection Procedure Part 3 Specification & Performance Part 4 Installation Part 5 Troubleshooting Part 6 Control System

3 DM en MIV V5 Heat Pump DC Inverter R410A Part 1 General Information 1. Midea Product Development History DC Inverter MIV V5 Introduction Model Line up Outdoor Unit Combinations Capacity Range of Indoor Units External Appearance and Model Names of Indoor Units Nomenclature General Information 1

4 MIV V5 Heat Pump DC Inverter R410A 1. Midea Product Development History In 1999, Midea cooperated with Toshiba, produced the No.1 AC Inverter VRF MDV. DM en In 2001, Midea produced the No1. MDV in Air-conditioning industry. In 2002, Midea developed the No.1 AC Inverter VRF MDV, and the No1. D series MDV in China. In 2003, Midea completed the 2nd D series and 2nd V series MDV. In 2005, Midea cooperated with Hitachi, produced the No.1 module s AC Inverter V3 and digital scroll D3. In 2008, Midea launched out the MDV4, which is the R410A DC Inverter VRF and Modular design also. In 2011, the new MIV V4+ was on sale, which owns the entirely DC Inverter technology and new low noise, technology (full systems line up: Heat Pump, mini, Heat Recovery, Individual). In 2013, Midea launched the DC Inverter MIV V5 Series outdoor unit. 2. DC Inverter MIV V5 Introduction 2.1. Free combination, the World s Largest Capacity 72HP MIV V5 Series achieves world s largest capacity of 72HP by combining maximum 4 outdoor units with 6 different capacities (8, 10, 12, 14, 16 and 18 HP), and 64 indoor units can be connected max. 2.2 High efficiency and Energy saving: MIV V5 Series achieves the industry's top class energy efficiency of cooling and heating by utilizing all DC inverter compressors, DC fan motors and high performance heat exchanger. All DC inverter compressors contribute to higher IPLV greatly. The highest IPLV is up to High efficiency DC inverter compressor, saving power 25% 8HP&10HP units adopt one DC inverter compressor only. 12, 14, 16, 18HP adopt two DC inverter compressors. With all DC inverter compressors, MIV V5 Series offers a wide operation range from 20Hz to 200Hz. The A/C load ratio of building is 30%-75%, the area use ratio is 55%, most of the A/C runs in the mid load, so the mid load operation ratio control the whole year AC running charge. Centralizing winding Distributing winding 2 General Information

5 DM en MIV V5 Heat Pump DC Inverter R410A All DC inverter compressors make the capacity output better distributed, and always work at 30-70Hz which is the most efficient range. It makes the efficiency more than 30% higher than the normal. Smooth Sine Wave DC Inverter Motor uses 180 sine wave vector drive technology to ensure transducer to output smooth curve, which shows motor rotor speed to run smooth. While, common frequency motor outputs sawtooth wave not precisely to show motor speed, so its efficiency is low. Common Sawtooth Wave Sine Wave DC Inverter High efficiency DC Fan motor, saving power 50% According to the running load and pressure, it controls the speed of DC fan to achieve the min. energy consumption, to reach the best effect. All DC fan motors saves much power consumption. Used across entire range of models (from 8 to 72 HP) Efficiency improved by up to 45% especially at low speed Pressure sensor DC Fan motor General Information 3

6 MIV V5 Heat Pump DC Inverter R410A DM en Motor rotor speed waves among ±5r, and can rapidly match DC Inverter Compressor to output, and enhance efficiency in part load Newly designed sub-cooling heat exchanger 12 C sub-cooling degree makes the cooling capacity increased efficiently. Thus, the total piping length becomes longer, reach up to 1000m. Meanwhile, the innovative designed high efficiency heat exchanger also simplified the pipeline of outdoor unit and realized compact design and low weight. By adoption of Pressure Sensor, EXV, all DC fan motors and all DC compressors, MIV V5 has an obvious improvement on efficiency than previous products. 2.3 More flexible design External static pressure enhanced up to 60Pa and air volume increases Applied high static pressure propeller fan and the optimum fan guard for high external static pressure, to respond to a range of various installation environments. Midea now offers up to 60Pa* (6.12 mm H 2 O) external static pressure for customized applications (60 Pa is available for the 12HP model; 40Pa is available for other models). A standard 0-20Pa function is equipped by default More options of indoor units and high capacity connection Lineup of heat pump types is 8 to 72 HP. Indoor units consist of 14 types with 115 models, capacity ranges from 1.8kW to 56kW. A maximum 130% indoor unit s connective ratio is allowed for all outdoor unit capacities. This wide selection of models makes it possible to build a system that suits the customer s requirements. 2.4 High Comfort Optional outdoor units Silent Mode control Night silent operation will be activated X (6, 8) hours after the peak temperature during daytime, and it will get back to normal operation after Y (8, 10, 12) hours. Super silent operation mode can reduce sound level further, minimum 45dB (A). This function can be activated by setting at site. Temperature (load) curve shown in the graph is just an example. 4 General Information

7 DM en MIV V5 Heat Pump DC Inverter R410A More options for outdoor units Night silent mode, silence mode, super silence mode Optimized fan design, strengthen heat exchanger By CFD software, the newly designed fan and grille enhance fan performance greatly and decrease the running noise as well. New designed fan outlet grille New designed fan impeller Conventional fan impeller 2.5 High Reliability Double Cycle Duty operation Cycle duty operation: both between the modules in one system and the compressors in one module, which extend the system lifespan significantly. The outdoor unit cycle duty operation happens once when running max. 125 minutes. General Information 5

8 MIV V5 Heat Pump DC Inverter R410A DM en Double Backup operation Outdoor unit adopts double backup function. If one module failed, other modules can be backup instead of the failed one, or if one of the compressors in one module failed, the other one can backup for continuing operation. Compressor backup in one module Compressor backup among modules Start backup operation Running state Stand by state Start backup operation Start backup operation Fault or stop state Dynamic gas balance technology Dynamic vector balance technology, no need to install gas balance pipe: High-precision pressure sensor monitors the system pressure on time and transfers the data to master unit Master unit sends the pressure data to every unit and make sure each outdoor unit in balance situation High efficiency oil balance technology Oil balance pipes set among the modules, and individual oil balance vector control ensures oil distribution among the modules to compressor smoothly and running reliably. When one compressor s oil is overfull, oil balance pipes and outlet pipes both send the oil to the system, and then the system distributes the oil to other compressors in average. Oil balance diagram: 6 General Information

9 DM en MIV V5 Heat Pump DC Inverter R410A Discharge pipe Refrigerant flow direction Oil separator Oil even pipe II Suction pipe Discharge pipe Oil even pipe Oil basin Enter condenser Oil balance pipe between modules Oil even pipe I Suction pipe From evaporator It adopts high efficient centrifugal type oil separator, which separates the oil from the discharged refrigerant with the efficiency up to 99% and makes all the lubricant discharged from the compressor can be returned in time. New designed low pressure liquid receiver with high efficiency of oil return effect. Oil balance ensures sufficient refrigerant lubricant supply. Elaborately designed oil return hole, which ensures reliable oil return for every compressor Oil return technology Centrifugal oil separator can be up to over 99% separating efficiency, which in time and efficiently send the oil to compressors to ensure compressor oil volume. System auto back oil design can complete through PC core to send oil back instruction by system running time and state. The accumulator is large volume design, which can save more refrigerant to avoid liquid strike. Multi back oil holes can ensure the oil back of the compressor smoothly Intelligent soft start technology, rapidly enhance refrigerant cycle volume Compressor soft start complete low frequency and low current start by DC Inverter compressor, and to reduce strike to electric network. When start DC Inverter Compressor, the system runs in large volume and offers more heating capacity. Compressor soft start Compressor soft start complete low frequency and low current start by DC Inverter compressor, and to induce strike to electric network. Lubrication system soft start 2.6 Convenient for installation and service Auto addressing General Information 7

10 MIV V5 Heat Pump DC Inverter R410A DM en Addressing outdoor units and indoor units are automatically done just by pressing the button of the controller. The outdoor unit can automatically distribute the address to indoor units without any manual settings. Wireless and wired controller can enquiry and modify every indoor units address. Up to 64 indoor units can be connected to one system and identified automatically Super Wiring It is possible to enable the shared use of the wiring between indoor & outdoor units, as well the centralized control. Hence make it easy for the user to retrofit the existing system with a centralized control, by simply connecting it to the outdoor units. PQE & XYE, just only one group of communication wire of PQE, achieved both of communication for indoor & outdoor unit and network. Reversible communication, central controller can connect from indoor side or outdoor side at will Convenient for maintenance Convenient electronic control check window. Can directly observe the operation status from the LED display, and directly press the FORCE COOLING / CHECK button. The high/low pressure valves adopt the Stop Valves, which have screwed thread nipple joint, can be connected to the meter connector directly in air tight test. And also make it more efficient and easy for installation. Self diagnosis function and four-digit Digital display, help service engineer to find out the fault fast and easily. 8 General Information

11 DM en 3. Model Line up Outdoor units (Combination Unit): 8, 10 HP 12,14,16 HP MIV V5 Heat Pump DC Inverter R410A 18 HP 18, 20, 22, 24, 26, 28, 30, 32 HP 34, 36, 38, 40, 42, 44, 46, 48 HP 50, 52, 54, 56, 58, 60, 62, 64 HP 66, 68, 70, 72 HP *The recommended combinations larger than 64HP adopt 5 basic models since 18HP model can be customized. General Information 9

12 MIV V5 Heat Pump DC Inverter R410A 4. Outdoor Unit Combinations Without 18HP model: DM en Capacity Recommend combination (HP) Model 8(HP) 10(HP) 12(HP) 14(HP) 16(HP) Max. indoor units nos. 8 MVUH252B-VA MVUH280B-VA MVUH335B-VA MVUH400B-VA MVUH450B-VA MVUH500B-VA MVUH560B-VA MVUH615B-VA MVUH680B-VA MVUH730B-VA MVUH780B-VA MVUH850B-VA MVUH900B-VA MVUH950B-VA MVUH1000B-VA MVUH1060B-VA MVUH1130B-VA MVUH1180B-VA MVUH1230B-VA MVUH1280B-VA MVUH1350B-VA MVUH1400B-VA MVUH1450B-VA MVUH1500B-VA MVUH1560B-VA MVUH1630B-VA MVUH1680B-VA MVUH1730B-VA MVUH1780B-VA General Information

13 DM en With 18HP model: MIV V5 Heat Pump DC Inverter R410A Recommend combination Max. Capacity (HP) Model 8(HP) 10(HP) 12(HP) 14(HP) 16(HP) 18(HP) indoor units nos. 8 MVUH252B-VA MVUH280B-VA MVUH335B-VA MVUH400B-VA MVUH450B-VA MVUH500B-VA MVUH560B-VA MVUH615B-VA MVUH680B-VA MVUH730B-VA MVUH780B-VA MVUH850B-VA MVUH900B-VA MVUH950B-VA MVUH1000B-VA MVUH1060B-VA MVUH1130B-VA MVUH1180B-VA MVUH1230B-VA MVUH1280B-VA MVUH1350B-VA MVUH1400B-VA MVUH1450B-VA MVUH1500B-VA MVUH1560B-VA MVUH1630B-VA MVUH1680B-VA MVUH1730B-VA MVUH1780B-VA MVUH1850B-VA3) MVUH1900B-VA MVUH1950B-VA MVUH2000B-VA3 64 General Information 11

14 MIV V5 Heat Pump DC Inverter R410A 5. Capacity Range of Indoor Units DM en Capacity (kw) HP INDEX One-way Cassette Two- way Cassette Compact Four- way Cassette Four-way Cassette Type Low Static Pressure Duct Middle Static Pressure Duct High Static Pressure Duct Ceiling & Floor Wall-mounted Type Console Exposed Floor-standing 12 General Information

15 DM en MIV V5 Heat Pump DC Inverter R410A 6. External Appearance and Model Names of Indoor Units External Appearance Model Name External Appearance Model Name One-way cassette MVN28A-VA1 MVN36A-VA1 MVN45A-VA1 MVN56A-VA1 MVN71A-VA1 Two-way cassette MVT22A-VA1 MVT28A-VA1 MVT36A-VA1 MVT45A-VA1 MVT56A-VA1 MVT71A-VA1 MVC28A-VA1 MVC36A-VA1 Compact four-way cassette MVS22A-VA1 MVS28A-VA1 MVS36A-VA1 MVS45A-VA1 MVS56A-VA1 Four-way Cassette Type MVC45A-VA1 MVC56A-VA1 MVC71A-VA1 MVC80A-VA1 MVC90A-VA1 MVC100A-VA1 MVC112A-VA1 MVC140A-VA1 MVM22A-VA1 MVM28A-VA1 Low Static Pressure Duct MVL18A-VA1 MVL22A-VA1 MVL28A-VA1 MVL36A-VA1 MVL45A-VA1 MVL56A-VA1 Middle Static Pressure Duct MVM36A-VA1 MVM45A-VA1 MVM56A-VA1 MVM71A-VA1 MVM80A-VA1 MVM90A-VA1 MVM112A-VA1 MVM140A-VA1 MVH71A-VA1 71~112 Model 140~160 Model MVH80A-VA1 MVH90A-VA1 MVH112A-VA1 MVH140A-VA1 MVH160A-VA1 High Static Pressure Duct MVH200A-VA1 MVH250A-VA1 MVH280A-VA1 High Static Pressure Duct MVX36A-VA1 MVX45A-VA1 High Static Pressure Duct MVH400A-VA1 MVH450A-VA1 MVH560A-VA1 Ceiling & Floor MVX56A-VA1 MVX71A-VA1 MVX80A-VA1 MVX90A-VA1 MVX112A-VA1 MVX140A-VA1 General Information 13

16 MIV V5 Heat Pump DC Inverter R410A DM en Wall-mounted S Type MVW22A-VA1 MVW28A-VA1 MVW36A-VA1 MVW45A-VA1 MVW56A-VA1 MVW71A-VA1 Exposed floor standing Type MVE22A-VA1 MVE28A-VA1 MVE36A-VA1 MVE45A-VA1 MVE56A-VA1 MVE71A-VA1 MVE80A-VA1 MVD22A-VA1 MVD28A-VA1 MVD36A-VA1 MVD45A-VA1 Console The specifications, designs, and information in this book are subject to change without notice for product improvement. 14 General Information

17 DM en 7. Nomenclature 7.1 Outdoor unit: MVUH252B - VA3 MIV V5 Heat Pump DC Inverter R410A Power 1-1 phase, 50 Hz 3-3 phases, 50 Hz Refrigerant A - R410A B - R22 Inverter (in)v(erter) - inverter S(tandard) on/off Model, Modification A Z, AA ZZ Capacity index kw*10 The main feature of the system air cooled: C(ooling) cooling only H(eat pump) cooling and heating R(ecovery) heat recovery, 3-pipe water cooled: Q(ooling) cooling only W(ater) cooling and heating (reco)v(ery) heat recovery, 3-pipe Identifier of the outdoor unit (o)u(tdoor) Manufacturer s brand and class of the system M(idea) V(RF) General Information 15

18 MIV V5 Heat Pump DC Inverter R410A 7.2 Indoor unit: MVC28A VA1 DM en Design features (may be absent) For example: G(rey), W (hite) - color Power 1-1 phase, 50 Hz 3-3 phases, 50 Hz Refrigerant A - R410A B - R22 Inverter (in)v(erter) - inverter S(tandard) - on/off Model, Modification A Z, AA ZZ Capacity index kw*10 Type of the indoor unit W(all) - wall (ca)s(sette) cassette 600x600 C(assette) - cassette (o)n(e way) 1-way cassette T(wo way) 2-way cassette L(ow) low static pressure duct M(edium) medium static pressure duct H(igh) - high static pressure duct (fle)x ceiling & floor F(loor standing) floor standing (колонный) E(floor-standing exposed) floor standing exposed D console Manufacturer s brand and class of the system M(idea) V(RF) 16 General Information

19 DM en MIV V4+ Heat Pump DC Inverter R410A Part 2 Selection Procedure 1 Introduction Unit selection (Based on cooling load) Selection Procedure 17

20 MIV V4+ Heat Pump DC Inverter R410A 1 Introduction 1.1 Model Selection Procedure DM en 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. Selection of an air conditioning system Select the ideal air conditioning system for air conditioning of each room or zone Design of the control system Design a suitable control system for the selected air conditioning system Preliminary selection of indoor and outdoor units Make preliminary selections that are within the allowable range for the system Check of the tubing length and elevation difference Check that the length of refrigerant tubing and the elevation difference are within the allowable ranges Calculation of the corrected outdoor unit capacity Capacity correction coefficient for model, outdoor temperature conditions, tubing length and elevation difference Calculation of the actual capacity for each indoor unit Calculate the corrected indoor/outdoor capacity ratio, based on the corrected outdoor unit capacity and the total corrected capacity of all indoor units in the same system Recheck of the actual capacity for each indoor unit If the capacity is inadequate, reexamine the unit combinations. 1.2 Indoor Unit Selection Enter INDOOR UNIT CAPACITY TABLES at given indoor and outdoor temperature. Select the unit that the capacity is the nearest to and greater than given load. Note: Individual indoor unit capacity is subject to change by the combination. Actual capacity has to be calculated according to the combination by using outdoor unit capacity table Calculation of Actual Capacity of Indoor Unit Because the capacity of a multi air-conditioner changes according to the temperature conditions, tubing length, elevation difference and other factors, select the correct model after taking into account the various correction values. When selecting the model, calculate the corrected capacities of the outdoor unit and each indoor unit. Use the corrected outdoor unit capacity and the total corrected capacity of all the indoor units to calculate the actual final capacity of each indoor unit. Find the indoor unit capacity correction coefficient for the following items Capacity correction for the indoor unit temperature conditions From the graph of capacity characteristics, use the indoor temperature to find the capacity correction coefficient. Capacity distribution ratio based on the indoor unit tubing length and elevation difference. First, in the same way as for the outdoor unit, use the tubing length and elevation difference for each indoor unit to find the correction coefficient from the graph of capacity change characteristics Capacity distribution ratio for each indoor unit = Correction coefficient for that indoor unit / Correction coefficient for the outdoor unit 1.3 Outdoor Unit Selection Allowable combinations are indicated in INDOOR UNIT COMBINATION TOTAL CAPACITY INDEX TABLE. In general, outdoor unit can be selected as follows though the location of the unit, zoning and usage of the 18 Selection Procedure

21 DM en MIV V4+ Heat Pump DC Inverter R410A rooms may be considered. 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. It is recommended to choose a larger outdoor unit if the installation space is large enough. If the combination ratio is greater than 100%, the indoor unit selection shall be reviewed by using actual capacity of each indoor unit. INDOOR UNIT COMBINATION TOTAL CAPACITY INDEX TABLE Outdoor Unit Indoor Unit Combination Ratio (kw) 130% 120% 110% 100% 90% 80% 70% 60% 50% 8HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP INDOOR UNIT CAPACITY INDEX Unit Size Model 18 Model 22 Model 28 Model 36 Model 45 Model 56 Model 71 Model 80 Model 90 Model 112 Model 140 Capacity Index (kw) Unit Size Model 160 Model 200 Model 250 Model 280 Capacity Index (kw) Selection Procedure 19

22 MIV V4+ Heat Pump DC Inverter R410A 1.3 Actual Performance Date DM en 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. IUC=OUC INX/TNX Where, IUC: Each indoor unit capacity OUC: Outdoors unit capacity INX: Each indoor unit capacity index TNX: Total capacity index Then, correct the indoor unit capacity according to the piping length. If the corrected capacity is smaller than the load, the size of indoor unit has to be increased and repeat the same selection procedure. 1.4 Variation in capacity in accordance with the length of refrigerant pipe Cooling capacity modification Modification coefficient of the length and high difference of refrigerant pipe: H (m) % L: Refrigerant pipe equivalent length H: Height difference between outdoor and indoor L (m) 20 Selection Procedure

23 DM en Heating capacity modification Modification coefficient of the length and high difference of refrigerant pipe: H (m) % L(m) L: Refrigerant pipe equivalent length H: Height difference between outdoor and indoor 96 MIV V4+ Heat Pump DC Inverter R410A Selection Procedure 21

24 MIV V4+ Heat Pump DC Inverter R410A 2 Unit selection (Based on cooling load) 2.1 Given condition DM en Design condition (Cooling: Indoor 20 C (WB), Outdoor 35 C (DB)) Cooling load Location Room A Room B Room C Room D Room E Room F Load (kw) Power supply unit: Outdoor 380~415V-3Ph-50Hz, Indoor 220~240V-1Ph-50Hz Pipe length: 50m Height difference: 30m 2.2 Indoor unit selection Select the suitable capacity for condition of Indoor 20 C (WB), Outdoor 35 C (DB) using indoor unit capacity table. The selected result is as follows. (Assuming the indoor unit type is duct) Location Room A Room B Room C Room D Room E Room F Load (kw) Unit size Capacity (kw) Outdoor unit selection Assume the indoor unit and outdoor unit combination as follows Calculate the total nominal capacity of indoor units in the combination according to the above table: = 25.8kW Select outdoor unit: MVUH280A-VA3 which has nominal cooling capacity: 28kW. Calculate the proportion between 1 and 2: 258/280= 92% Result: Because the proportion is within 50~130%, it is a «Right» selection Real function data with indoor unit combination For the 92% combination, calculate the cooling capacity of outdoor unit (MVUH280A-VA3) KW 90% (Indoor temperature: WB 20 C, Outdoor temperature: DB 35 C) 29.61KW 100% (Indoor temperature: WB 20 C, Outdoor temperature: DB 35 C) Then calculated the outdoor capacity in 92% combination index: Therefore: {( )/ 10} 2= 27.24; Outdoor unit (MVUH280A-VA3) cooling temperature: DB 35 C Capacity modification coefficient with pipe length (50m) and height difference (30m): Each indoor unit cooling capacity MVM22A-VA1: / = 2.22 (kw) MVM28A-VA1: / = 2.83 (kw) MVM36A-VA1: / = 3.64 (kw) MVM45A-VA1: / = 4.55 (kw) MVM56A-VA1: / = 5.66 (kw) MVM71A-VA1: / = 7.18 (kw) Location Room A Room B Room C Room D Room E Room F Load (kw) Unit size Capacity (kw) Selection Procedure

25 DM en MIV V4+ Heat Pump DC Inverter R410A 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, we don t consider the other capacity modification index and assume them are 1.0. For more details about the effect factor such as outside ambient/inside ambient DB/WD, please refer to the performance table of indoor and outdoor units. Selection Procedure 23

26 MIV V5 Heat Pump DC Inverter R410A DM en Part 3 Specification & Performance 1. Specifications Dimensions Piping Diagrams Electric Characteristics Wiring Diagrams and Field Wiring Operation Limits Capacity Tables Sound Levels Outdoor Fan performance Accessories Functional parts and safety devices Specification & performance

27 DM en MIV V5 Heat Pump DC Inverter R410A 1. Specifications Model MVUH252B-VA3 MVUH280B-VA3 MVUH335B-VA3 Power supply V-Ph-Hz 380~415V 3Ph ~ 50Hz 380~415V 3Ph ~ 50Hz 380~415V 3Ph ~ 50Hz Capacity W Cooling (*1) Input W EER W/W Capacity W Heating (*2) Input W COP W/W Max. input consumption W Max. current A Model E655DHD-65D2YG E655DHD-65D2YG E655DHD-65D2YG+ E405DHD-36D2YG Quantities Type DC Inverter DC Inverter DC Inverter Brand Hitachi Hitachi Hitachi DC Inverter compressor Capacity W 31590(90Hz) 31590(90Hz) 31590(90Hz)+11800(60Hz) Input W 10340(90Hz) 10340(90Hz) 10340(90Hz)+3665(60Hz) Power supply V-Ph-Hz V~3Ph, 50Hz V~3Ph, 50Hz V~3Ph, 50Hz Operating frequency Hz 40~200 40~200 40~200 Crankcase W *2 Refrigerant oil ml FVC68D / 500 FVC68D / 500 FVC68D / 500+ FVC68D / 500 Model WZDK750-38G-4 WZDK750-38G-4 WZDK750-38G-4 Type DC Inverter DC Inverter DC Inverter Brand Panasonic&Nidec Panasonic&Nidec Panasonic&Nidec Quantities Outdoor fan motor Insulation class E E E Safe class IPX4 IPX4 IPX4 Input W 534(RATED) 534(RATED) 272 2(RATED) Output W Rated current A Speed r/min 850(RATED) 850(RATED) 930(RATED) Material Plastic Plastic Plastic Type Axial Axial Axial Outdoor fan Fan Quantities Dimension(Dia. H) mm Vane Quantities Number of rows Tube pitch(a)x row pitch(b) mm Fin spacing mm Outdoor coil Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum Tube outside dia. mm Ф7.94 Ф7.94 Ф7.94 Tube type Inner-grooved Inner-grooved Inner-grooved Coil length x height mm Number of circuits Outdoor air flow m 3 /h External static pressure Pa 0~20 (default) 20~40 (optional) 0~20 (default) 20~40(optional) 0~20 (default) 20~60 (optional) Outdoor sound level(*3) db(a) Specification & performance 25

28 MIV V5 Heat Pump DC Inverter R410A DM en Dimension(W H D) mm Outdoor unit Packing (W H D) mm Net/Gross weight Kg 212/ / /300 Charged refrigerant type and volume kg R410A 10kg R410A 10kg R410A 12kg Throttle type EXV EXV EXV Excessive operating pressure MPa 4.4/ / /2.6 Liquid side/ Gas side(*4) mm Ф12.7/Ф25.4 Ф12.7/Ф25.4 Ф15.9/Ф31.8 Oil balance pipe mm Ф6.4 Ф6.4 Ф6.4 Total pipe length m Refrigerant piping Connection wiring The farthest pipe length(actual) The farthest pipe length (equivalent) The farthest equivalent pipe length from the first distributor (*5) Max. Vertical pipe length (When outdoor units is above) Max. Vertical pipe length (When outdoor units is below) Max. drop between indoor units Power wiring mm (L 20m); (L 50m) m m m 40(90) 40(90) 40(90) m m m core shielded wiring; Signal wiring mm wiring dia (L 20m); (L 50m) 3 core shielded wiring; wiring dia (L 20m); (L 50m) 3 core shielded wiring; wiring dia Ambient temp. range - Cooling Ambient temp. range - Heating Notes: 1. The cooling conditions: indoor temp.: 27 DB(80.6 ), 19 WB(60 ), outdoor temp.: 35 DB(95 ), equivalent pipe length: 5m, drop length: 0m. 2. The heating conditions: indoor temp.: 20 DB(68 ), 15 WB(44.6 ) outdoor temp.: 7 DB(42.8 ) equivalent pipe length: 5m drop length: 0m. 3. Sound level: Anechoic chamber conversion value, measured at a point 1 m in front of the unit at a height of 1.5 m. During actual operation, these values are normally somewhat higher as a result of ambient conditions. 4. It s the dimension of connecting pipes between outdoor and first branch joint when the Max. Equivalent length of tubing is less than 90m. 5. The farthest equivalent pipe length should be equal to or shorter than 40m, but it can be up to 90m if meet the required conditions following part 4 installation sections. 6. The above data may be changed without notice for future improvement on quality and performance. 26 Specification & performance

29 DM en MIV V5 Heat Pump DC Inverter R410A Model MVUH400B-VA3 MVUH450B-VA3 MVUH500B-VA3 Power supply V-Ph-Hz 380~415V 3Ph ~ 50Hz 380~415V 3Ph ~ 50Hz 380~415V 3Ph ~ 50Hz Capacity W Cooling Input W EER W/W Capacity W Heating Input W COP W/W Max. input consumption W Max. current A Model E655DHD-65D2YG+E405D HD-36D2YG E655DHD-65D2YG+E405D HD-36D2YG E655DHD-65D2YG Quantities Type DC Inverter DC Inverter DC Inverter DC Inverter compressor Brand Hitachi Hitachi Hitachi Capacity W 31590(90Hz) (60Hz) 31590(90Hz) (60Hz) Input W 10340(90Hz)+3665(60Hz) 10340(90Hz)+3665(60Hz) 31590(90Hz) (90Hz) 10340(90Hz) (90Hz) Power supply V-Ph-Hz V~3Ph, 50Hz V~3Ph, 50Hz V~3Ph, 50Hz Operating frequency Crankcase Refrigerant oil Hz 40~200/48~230 40~200/48~230 40~200 W ml FVC68D / 500+ FVC68D / 500 FVC68D / 500+ FVC68D / 500 FVC68D / 500+ FVC68D / 500 Model WZDK750-38G-4 WZDK750-38G-4 WZDK560-38G(A) Type DC MOTOR DC MOTOR DC MOTOR Brand Panasonic&Nidec Panasonic&Nidec Panasonic Quantities Outdoor fan motor Insulation class E E E Safe class IPX4 IPX4 IPX4 Input W 450 2(RATED) 450 2(RATED) Output W Rated current A Speed r/min material Plastic Plastic Plastic Type Axial Axial Axial Outdoor fan Fan Quantities Dimension(Dia. H) mm Vane Quantities Number of rows Tube pitch(a)x row pitch(b) mm Fin spacing mm Outdoor coil Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum Tube outside dia. mm Ф7.94 Ф7.94 Ф7.94 Tube type Inner-grooved Inner-grooved Inner-grooved Coil length height mm Number of circuits Outdoor air flow m 3 /h External static pressure Pa 0~20 (default) 20~40 (optional) 0~20 (default) 20~40 (optional) 0~20 (default) 20~40 (optional) Outdoor sound level(*4) db(a) Outdoor unit Dimension(W H D) mm Specification & performance 27

30 MIV V5 Heat Pump DC Inverter R410A DM en Packing (W H D) mm Net/Gross weight Kg 288/ / /330 Charged refrigerant type kg R410A 15kg R410A 15kg R410A 16kg Throttle type EXV EXV EXV Excessive operating pressure MPa 4.4/ / /2.6 Refrigerant piping Connection wiring Liquid side/ Gas side mm Ф15.9/Ф31.8 Ф15.9/Ф31.8 Ф19.1/Ф31.8 Oil balance pipe mm Ф6.4 Ф6.4 Ф6.4 Total pipe length m The farthest pipe length(actual) The farthest pipe length (equivalent) The farthest equivalent pipe length from the 1st distributor tube(*5) Max. Vertical pipe length (When outdoor units is above) Max. Vertical pipe length (When outdoor units is below) Max. drop between indoor units m m m 40(90) 40(90) 40(90) m m m Power wiring mm (L 20m); (L 50m) 2 3 core shielded wiring; Signal wiring mm wiring dia (L 20m); (L 50m) 3 core shielded wiring; wiring dia (L 20m); (L 50m) 3 core shielded wiring; wiring dia Ambient temp. range - Cooling Ambient temp. range - Heating Notes: 1. The cooling conditions: indoor temp.: 27 DB(80.6 ), 19 WB(60 ), outdoor temp.: 35 DB(95 ), equivalent pipe length: 5m, drop length: 0m. 2. The heating conditions: indoor temp.: 20 DB(68 ), 15 WB(44.6 ), outdoor temp.: 7 DB(42.8 ), equivalent pipe length: 5m, drop length: 0m. 3. Sound level: Anechoic chamber conversion value, measured at a point 1 m in front of the unit at a height of 1.5 m. During actual operation, these values are normally somewhat higher as a result of ambient conditions. 4. It s the dimension of connecting pipes between outdoor and first branch joint when the Max. Equivalent length of tubing is less than 90m. 5. The farthest equivalent pipe length should be equal to or shorter than 40m, but it can be up to 90m if meet the required conditions following part 4 installation sections. 6. The above data may be changed without notice for future improvement on quality and performance. 28 Specification & performance

31 DM en 2. Dimensions 2.1 Units Dimension 8HP/10HP Dimensions (Combinable): MIV V5 Heat Pump DC Inverter R410A Specification & performance 29

32 MIV V5 Heat Pump DC Inverter R410A DM en Liquid side (The connected pipe diameter Φ12.7) Gauge point Detect the pressure/ Refrigerant replenishment Oil balancer For parallel connect the modular units Gas side (The connected pipe diameter Φ25.4) Position of Foot screw bolt (Unit: mm) B A Enlarged view for 8HP/10HP C D long u-shape hole For 8,10HP For 12,14,16,18HP A B C D Specification & performance

33 DM en 12HP/14HP/16HP/18HP (Combinable)Dimensions: MIV V5 Heat Pump DC Inverter R410A Specification & performance 31

34 MIV V5 Heat Pump DC Inverter R410A DM en Liquid side (The connected pipe diameter Φ15.9) Gauge point Detect the pressure/ Refrigerant replenishment Oil balancer For parallel connect the modular units Gas side (The connected pipe diameter Φ31.8) Enlarged view for 12HP/14/16HP 239 Gauge point (Cooling only type without) Detect the pressure/ Refrigerant replenishment Gas side (The connected pipe diameter Φ31.8) Oil balance pipe For parallel connect the modular units Liquid side (The connected pipe diameter Φ19.1) Enlarged view for 18HP 32 Specification & performance

35 DM en 2.2 Valve explanation MIV V5 Heat Pump DC Inverter R410A HP, 14HP, 16HP Connect the liquid pipe (accessory, field installation) Connect the gas pipe Low pressure float valve Oil balance pipe (only for combination) Gauge point(cooling only type without) HP Connect the liquid pipe (accessory, field installation) Connect the gas pipe Oil balance pipe (only for combination) Gauge point(cooling only type without) Stop valve Specification & performance 33

36 MIV V5 Heat Pump DC Inverter R410A 3. Piping Diagrams DC Fan SV6 DM en Heat Exchanger EXV A SV5 Stop Valve (High Pressure) ST 1 Stop Valve (Low Pressure) High PressureHPS Switch Compressor INVERTER High Pressure Sensor SENP Oil Separator SV 4 unloading valve Low Pressure Low Receiver Pressure Switch LPS SV 2 Oil Balance 8~10HP DC Fan SV6 EXV A Stop Valve (High Pressure) Heat Exchanger ST 1 SV5 Stop Valve (Low Pressure) Compressor INVERTER High Pressure HPS Switch High Pressure Sensor Compressor INVERTER SENP Oil Separator SV4 unloading valve Low Pressure Switch LPS Low Pressure Receiver SV2 Oil Balance 12HP DC Fan SV6 EXV A Stop Valve (High Pressure) Heat Exchanger ST 1 EXV B SV5 Stop Valve (Low Pressure) Compressor INVERTER High Pressure HPS Switch High Pressure Sensor Compressor INVERTER SENP Oil Separator SV4 unloading valve Low Pressure Switch LPS Low Pressure Receiver SV2 Oil Balance 14~16HP 34 Specification & performance

37 U Inverter U SV5 U Inverter U SV4 U Fix U DM en MIV V5 Heat Pump DC Inverter R410A SV6 SV1 ST1 EXVA EXVB SV5 Ф2.5x1.5x1500 SV4 SV2 Ф3.2x1.9x1000 Ф2.2x1.1x2500 Ф2.0 18HP Remark: 1.8~10 HP models only have one inverter compressor. 2.12~18HP have two DC inverter compressors. 3.14~18HP models have two EXV parts at the high-pressure pipe side, different with 12HP model. Key Components: Oil Separator: used to separate oil from high pressure & 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. Low pressure receiver: It is used to store the liquid refrigerant and oil, it can protect the compressor from liquid hammer. Four-way valve control (ST1): Closed in cooling mode and open in heating mode EXV (electromagnetic expansion valve) control: 1) Max. Open degree is 480 pulses. 2) Generally, when system is plug in the EXV closes 700pulse first, then opens to 350 pulse and stand by. When then the unit started, it opens to the right pulse. 3) When the running outdoor unit receives OFF signal, the EXV of slave unit will stop, while master unit is running and slave unit stopped at the same time. If all outdoor units stopped, the EXV will close first, and then open to the pulse of stand-by. 4) 8HP~12HP models have one EXV; 14~18HP models have double EXVs. SV2: spray a little liquid refrigerant to cooling compressor. Open when any compressor discharge temperature is higher than 100. SV4: oil returning valve. Opens after the DC inverter compressor has been run for 5 minutes and then closes 15 minutes later. (For the system has only one outdoor unit). Every 20 minutes, SV4 of each outdoor unit opens for 3 minutes. (For the system has more than one outdoor unit) SV5: for defrosting. In defrosting mode, the opening of SV5 can cut the refrigerant flowing circle, so the defrosting process will takes less time. In cooling mode, it is always off. SV6: for by-pass. Closed when the unit stands by and system is running at heating mode. Open when the discharge temperature is over-high in cooling mode, and close when the unit is standby or system is in heating mode. High pressure sensor: to supervisor the discharge pressure of the compressor and to control the DC fan speed. For example: Cooling mode launch sequence (The unit has accomplish commissioning): 60s later 60s later 40s later Plug in and unit start sv4, SV5 openu closed U closed U 50s later 20s later Inverter compressor start at 40 Hz U compressor start at 30hz U scroll 40s later compressor start (This step is omitted for 8HP&10HP models)u compressor running frequency will adjust according the capacity requirement. Specification & performance 35

38 MIV V5 Heat Pump DC Inverter R410A 4. Electric Characteristics Model DM en Outdoor Unit Power Supply Compressor OFM Hz Voltage Min. Max. MCA TOCA MFA MSC RLA KW FLA MVUH252B-VA ~ MVUH280B-VA ~ MVUH335B-VA ~ MVUH400B-VA ~ MVUH450B-VA ~ MVUH500B-VA ~ Remark: MCA: Min. Current Amps. (A) TOCA: Total Over-current Amps. (A) MFA: Max. Fuse Amps. (A) MSC: Max. Starting Amps. (A) RLA: Rated Locked Amps. (A) OFM: Outdoor Fan Motor. FLA: Full Load Amps. (A) KW: Rated Motor Output (KW) Notes: 1. RLA is based on the following conditions, Indoor temp. 27 DB/19 WB,Outdoor temp. 35 DB 2. TOCA means the total value of each OC set. 3. MSC means the Max. current during the starting of compressor. 4. Voltage range. Units are suitable for use on electrical systems where voltage supplied to unit terminals is not below or above listed range limits. 5. Maximum allowable voltage variation between phases is 2%. 6. Selection wire size based on the larger value of MCA or TOCA. 7. MFA is used to select the circuit breaker and the ground fault circuit interrupter (earth circuit breaker). 36 Specification & performance

39 DM en 5. Wiring Diagrams and Field Wiring 5.1 Wiring Diagram For 8~10HP MIV V5 Heat Pump DC Inverter R410A Specification & performance 37

40 MIV V5 Heat Pump DC Inverter R410A Wiring Diagram For 12~18HP DM en 38 Specification & performance

41 DM en 5.2 Field Wiring Terminal of Outdoor unit MIV V5 Heat Pump DC Inverter R410A A B C N To V 3 N~ 5 0/60Hz Wiring between Indoor and Outdoor unit Power( V 3N ~ 50Hz/60Hz) L1L2 L3N Outdoor units centralized monitoring Network accounting Indoor units centralized controller Indoor units communication Outdoor units communication A B C N Branch Box Outdoor unit(master unit) Outdoor unit(slave unit) Outdoor unit(slave unit) A B C N H1 H2 E P Q E A B C N H1 H2 E P Q E A B C N H1 H2 E P Q E Signal wire between indoor/outdoor unith Indoor unit Indoor unit Indoor unit Signal wire between outdoor units L N P Q E A B C D E L N P Q E A B C D E L N P Q E A B C D E Branch Box Signal wire between indoor units Branch Box Branch Box Signal wire between indoor unit and wire controller A B C D E A B C D E A B C D E Wired controller Wired controller Wired controller Note: 1. The signal connecting line between outdoor units, indoor and outdoor units and indoor units has polarity. When connecting, be careful to prevent error connection. 2. Signal line shall adopt three-core shielded wire with an area above 0.75 mm Do not bind signal line and copper pipe together with belting. 4. Make sure that the shield metal layer should be grounded well indoor control box in order to prevent interference. 5. It s forbidden to connect 200V or above high-volt live wire to the communication terminal. Specification & performance 39

42 MIV V5 Heat Pump DC Inverter R410A 5.3 Outdoor unit power wiring Separate Power Supply (without power facility) Model Item Power supply Minimum Power wire diameter (mm 2 ) Wiring of mental and synthetic resin DM en manual switch(a) Creepage breaker Size Ground wire Capacity Fuse MVUH252B-VA mm 2 (<20 m) 4 16 mm 2 (<50 m) 1 10 mm MVUH280B-VA3 MVUH335B-VA3 MVUH400B-VA3 380V~415V, 3N, 50Hz 4 10 mm 2 (<20 m) 4 16 mm 2 (<50 m) 4 10 mm 2 (<20 m) 4 16 mm 2 (<50 m) 4 16 mm 2 (<20 m) 4 25 mm 2 (<50 m) 1 10 mm mm mm ma 0.1sec or less MVUH450B-VA mm 2 (<20 m) 1 16 mm MVUH500B-VA mm 2 (<50 m) 1 16 mm With power facilities: Out door u nit Leakage po w er supply pr o tec t or V3 N ~ 50/60 Hz Leaka ge pr otec tor M anual s wit ch M a nual swit ch Ou td o o r u nit GND Ou td o o r u nit GND ( a ) Ou td o o r u nit GND B ra n c h b o x Ou td o o r u nit GND Power facilities 1 (with leakage protector) Outdoor unit GND (a) Leakage protector Manual switch (b) Outdoor unit Outdoor unit GND GND Branch box Outdoor unit GND Power facilities 2 (with leakage protector) Outdoor unit Outdoor unit GND GND 40 Specification & performance

43 DM en Note: MIV V5 Heat Pump DC Inverter R410A 1. Select power cord for these five models separately according to relevant standard. 2. The wiring diameter and the length in the table indicate the condition that the voltage dropping range is within 2%. If the length exceeds the above figure, please select the wire diameter according to relevant standard. 3. Select the wire diameter Power wiring refer to the main wire (a) connecting to branch box and the wiring (b) between branch box and power facilities. Please select the wire diameter according to the following requirement. 4. Diameter of main wire (a) Depends on the total horsepower of outdoor unit and following table. E.g. In system:(8hp 1unit+8Hp 1unit+10Hp 1unit) Total Hp=26Hp (Table.6-4) size of wire=35mm2(within 50m) 5. Wiring(b):between branch box and power equipment. Depends on the number of combined outdoor unit. If fewer than 5, the diameter is the same as that of main wire (a); if more than 6, there will be 2 electric control boxes, and the diameter of wiring depends on the total horsepower of outdoor units connecting to each electric control box and following table. Specification & performance 41

44 MIV V5 Heat Pump DC Inverter R410A DM en Reference table of the cable size for each capacity Min. Diameter of wiring (mm 2 ) Total capacity (HP) from weather proof isolator to ODU Below 20 m 20 to 50 m Remark: The above selection is just for reference, it should be considered that the cable layout, space between cable and surroundings, etc. for an actual electrical project 42 Specification & performance

45 DM en 6. Operation Limits Outdoor temperature ( DB) Cooling Range for continuous operation Range for intermittent operation Outdoor temperature ( WB) Heating Range for intermittent operation MIV V5 Heat Pump DC Inverter R410A Range for continuous operation Indoor temperature ( WB) Indoor temperature ( DB) Outdoor temp. Indoor temp. Room relative humidity Cooling mode -5 C ~ 48 C 17 C ~ 32 C below 80% Heating mode -20 C ~ 27 C 15 C ~ 30 C Notes: 1. If the unit is running outside the above condition, protective device will start, and even then the units take place abnormality running. 2. These figures base on the operation conditions between indoor units and outdoor units: Equivalent pipe length is 5m, and height difference is 0m. Precaution: The indoor relative humidity should be lower than 80%. If the air conditioner works in an environment with a relative humidity higher than mentioned above, the surface of the air conditioner may condensate. In this case, it is recommended to set the air speed of the indoor unit to high. Specification & performance 43

46 MIV V5 Heat Pump DC Inverter R410A 7. Capacity Tables 8HP cooling mode Combination (%) (Capacity index) 130% 120% 110% Outdoor temperatur e ( C DB) Indoor temperature( C DB/WD) DM en DB:20.8,WB:14 DB:23.3,WB:16 DB:25.8,WB:18 DB:27,WB:19 DB:28.2,WB:20 DB:30.7,WB:22 DB:32,WB:24 TC PI TC PI TC PI TC PI TC PI TC PI TC PI kw kw kw kw kw kw kw kw kw kw kw kw kw kw Specification & performance