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MIV V4+ Mini DC Inverter R410A (220V, 8 kW)

DM12-01.01.05en

36

Outdoor

units

5) E5 malfunction

LED indicates E5

Outdoor unit voltage protection

Check the voltage of outdoor unit power supply, whether the
voltage between L1 and N is about 198--252V

No

Replace the filter board, then check whether the system can
run normally

Check the power supply

Yes

Replace outdoor main board

Yes

Trouble is solved

No

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Содержание MIV V4+ Mini

Страница 1: ...DM12 01 01 05en Service manual MIV V4 Mini DC INVERTER R410A 220V 50Hz 1Ph MVUH80A VA1 ...

Страница 2: ...Contents Part 1 General Information 1 Part 2 Outdoor Units 6 Part 3 Installation 44 ...

Страница 3: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW General Information 1 Part 1 General Information 1 Product Lineup 2 2 Nomenclature 3 3 Features 5 ...

Страница 4: ...C Inverter R410A 220V 8 kW DM12 01 01 05en 2 General Information 1 Product Lineup Outdoor Units Model name Dimension mm Width Height Depth Net Gross weight kg Power supply MVUH80A VA1 975 862 355 66 70 220 240V 50Hz ...

Страница 5: ...erter in V erter inverter S tandard on off Model A Z 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 ...

Страница 6: ...rter S tandard on off Model A Z 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 ...

Страница 7: ...uilding are also full of outdoor unit Now Midea can provide an effective solution Midea DC inverter mini system Since now the beauty of the building will be back 4 Indoor unit is over 70 models in 11 type variations can be choose including 4 way cassette 4 way cassette Compact duct ceiling and floor wall mounted floor standing give you the most fashionable and comfortable living space 5 The outdoo...

Страница 8: ...Outdoor units Part 2 Outdoor Units 1 Specifications 7 2 Dimensions 8 3 Service Space 9 4 Piping Diagrams 10 5 Wiring Diagrams 11 6 Field Wiring 12 7 Capacity Tables 13 8 Electric Characteristics 19 9 Sound Levels 20 10 Operation Limits 21 11 Troubleshooting 22 ...

Страница 9: ...a x row pitch b mm 22 19 05 Fin spacing mm 1 7 Fin type code Hydrophilic Aluminum Tube outside dia and type mm Ф7 94 Inner groove tube Coil length x height x width mm 766 792 38 1 Number of circuits 8 Outdoor air flow m 3 h 5966 4775 Sound level sound pressure dB A 57 54 Outdoor unit Dimension WxDxH mm 975 355 862 Packing WxDxH mm 1043 395 915 Net Gross weight kg 66 70 Refrigerant Type R410A Charg...

Страница 10: ...MIV V4 Mini DC Inverter R410A 220V 8 kW DM12 01 01 05en 8 Outdoor units 2 Dimensions MVUH80A VA1 Unit mm MODEL A B C D E F H MVUH80A VA1 895 590 313 355 333 975 862 ...

Страница 11: ...1 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Outdoor units 9 3 Service Space 300 600 300 2000 Wall or obstacle Maintain cha nnel Air outlet Air inlet M P Air inlet N Single unit installation 60cm Fix withbolt ...

Страница 12: ...ing Diagrams MVUH80A VA1 REMARK for reference Electronic expansion valve Condenser Oil separator Compressor Low pressure switch Oil return Capillary High pressure switch Low pressure liquid accumulator can High pressure liquid accumulator can Electronic expansion valve Evaporator ...

Страница 13: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Outdoor units 11 5 Wiring Diagrams MVUH80A VA1 ...

Страница 14: ...MIV V4 Mini DC Inverter R410A 220V 8 kW DM12 01 01 05en 12 Outdoor units 6 Field Wiring MVUH80A VA1 ...

Страница 15: ...9 16 00 6 49 1 14 7 71 1 39 8 97 1 66 9 54 1 77 9 66 1 75 9 89 1 76 10 11 1 78 18 00 6 49 1 16 7 71 1 42 8 97 1 71 9 40 1 83 9 51 1 84 9 74 1 85 10 00 1 87 19 00 6 49 1 18 7 71 1 48 8 97 1 84 9 29 1 92 9 40 1 93 9 63 1 94 9 86 1 96 21 00 6 49 1 19 7 71 1 53 8 97 1 91 9 20 1 96 9 31 1 97 9 57 1 99 9 80 2 01 23 00 6 49 1 28 7 71 1 64 8 97 2 04 9 09 2 05 9 20 2 06 9 43 2 08 9 66 2 10 25 00 6 49 1 36 ...

Страница 16: ... 85 5 80 1 02 6 74 1 21 7 20 1 31 7 66 1 41 8 60 1 61 9 40 1 83 19 00 4 86 0 86 5 80 1 05 6 74 1 24 7 20 1 34 7 66 1 46 8 60 1 73 9 26 1 91 21 00 4 86 0 87 5 80 1 06 6 74 1 26 7 20 1 38 7 66 1 51 8 60 1 79 9 20 1 96 23 00 4 86 0 89 5 80 1 10 6 74 1 35 7 20 1 48 7 66 1 62 8 60 1 92 9 06 2 05 25 00 4 86 0 93 5 80 1 17 6 74 1 44 7 20 1 58 7 66 1 73 8 60 2 06 8 94 2 14 27 00 4 86 0 99 5 80 1 25 6 74 1...

Страница 17: ...59 3 86 0 70 4 49 0 81 4 80 0 88 5 11 0 93 5 74 1 08 6 37 1 25 25 00 3 23 0 60 3 86 0 71 4 49 0 85 4 80 0 92 5 11 0 99 5 74 1 16 6 37 1 33 27 00 3 23 0 62 3 86 0 76 4 49 0 90 4 80 0 98 5 11 1 06 5 74 1 23 6 37 1 42 29 00 3 23 0 66 3 86 0 80 4 49 0 96 4 80 1 04 5 11 1 13 5 74 1 31 6 37 1 51 31 00 3 23 0 70 3 86 0 85 4 49 1 02 4 80 1 11 5 11 1 20 5 74 1 40 6 37 1 61 33 00 3 23 0 74 3 86 0 90 4 49 1 ...

Страница 18: ...91 2 72 7 89 2 82 7 86 2 91 7 86 2 95 7 86 3 00 7 83 3 09 3 3 7 8 29 2 81 8 29 2 89 8 26 2 98 8 26 3 02 8 23 3 07 8 23 3 15 0 0 7 8 94 2 92 8 94 3 01 8 91 3 08 8 91 3 13 8 89 3 16 8 89 3 25 3 2 2 9 66 3 03 9 63 3 11 9 63 3 18 9 60 3 22 9 60 3 26 9 40 3 24 5 4 1 10 14 3 10 10 11 3 17 10 11 3 24 10 09 3 28 10 09 3 31 9 40 3 04 7 6 10 66 3 16 10 66 3 23 10 63 3 30 10 46 3 25 10 11 3 12 9 40 2 86 9 7 ...

Страница 19: ...83 13 11 8 9 13 2 31 8 61 2 16 8 10 2 01 7 81 1 94 7 56 1 87 7 04 1 73 15 13 7 9 13 2 18 8 61 2 04 8 10 1 90 7 81 1 84 7 56 1 77 7 04 1 64 80 13 7 15 6 26 2 97 6 23 3 05 6 23 3 13 6 23 3 16 6 20 3 20 6 20 3 28 11 8 13 6 51 3 03 6 51 3 11 6 49 3 18 6 49 3 21 6 49 3 25 6 29 3 16 9 8 11 6 83 3 09 6 83 3 16 6 80 3 23 6 80 3 27 6 74 3 26 6 29 2 99 9 5 10 7 00 3 13 6 97 3 19 6 97 3 26 6 97 3 29 6 74 3 1...

Страница 20: ... 1 45 5 23 1 40 5 06 1 35 4 71 1 26 11 9 8 6 09 1 56 5 74 1 47 5 40 1 38 5 23 1 33 5 06 1 29 4 71 1 20 13 11 8 6 09 1 48 5 74 1 39 5 40 1 31 5 23 1 27 5 06 1 22 4 71 1 14 15 13 7 6 09 1 41 5 74 1 32 5 40 1 25 5 23 1 21 5 06 1 17 4 71 1 09 50 13 7 15 5 07 2 58 4 78 2 41 4 50 2 24 4 33 2 16 4 19 2 08 3 90 1 92 11 8 13 5 07 2 45 4 78 2 29 4 50 2 13 4 33 2 06 4 19 1 98 3 90 1 83 9 8 11 5 07 2 32 4 78 ...

Страница 21: ...stics Model Outdoor Unit Power Supply Compressor OFM Hz Voltage Min Max TOCA MFA RLA kW FLA MVUH80A VA1 50 220 240 198 253 20 5 50 9 7 0 168 0 78 Remark TOCA Total Over current Amps A MFA Max Fuse Amps A RLA Rated Locked Amps A OFM Outdoor Fan Motor FLA Full Load Amps A KW Rated Motor Output KW ...

Страница 22: ...MIV V4 Mini DC Inverter R410A 220V 8 kW DM12 01 01 05en 20 Outdoor units 9 Sound Levels Model Noise level dB A High speed Low speed MVUH80A VA1 57 54 ...

Страница 23: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Outdoor units 21 10 Operation Limits ...

Страница 24: ...rmally but completely can it cooling Temperature is not set correctly Be in 3 minutes protection of compressor Set the temperature properly Wait Units start or stop frequently Refrigerant is too little or too much Air or no concreting gas in the refrigerating circuit Compressor is malfunction Voltage is too high or too low System circuit is blocked Check leakage and rightly recharge refrigerant Va...

Страница 25: ... on Check whether the MODE indicated on the display is FAN ONLY The temperature cannot be set during FAN mode The indication on the display disappears after a lapse of time Check whether the timer operation has come to an end when the TIMER OFF is indicated on the display The air conditioner operation will stop up to the set time The TIMER ON indicator goes off after a lapse of certain time Check ...

Страница 26: ...ion LED1 Quick flash E4 5 Water level checking malfunction LED4 Quick flash EE 6 EEPROM malfunction LED1 Slow flash E7 7 Mode conflicts malfunction LED3 Quick flash E0 8 Outdoor malfunction LED4 Slow flash Ed 2 For the Wall mounted No Malfunction Code 1 Communication malfunction between in outdoor unit E1 2 T1 Temp sensor malfunction E2 3 T2A Temp sensor malfunction E3 4 T2B Temp sensor malfunctio...

Страница 27: ...n ON 3 PRE DEF lamp is on Anti cooling or Defrosting 4 Timer lamp is on Timer function is on 5 Timer lamp flashes Indoor outdoor communication malfunction 6 Operation lamp flashes Indoor unit s temp Sensor malfunction 7 PRE DEF Lamp flashes Mode confliction malfunction 8 Alarm lamp flashes quickly Water level checking malfunction 9 Alarm lamp flashes slowly Outdoor malfunction or protection ...

Страница 28: ...s Communication wires does not be separated from Power wires causing interference Communication wire is not in serial connection such as star connection or parallel connection There are other electronic magnetic interference sources nearby such as transformer strong solar light and so on Rule out interference source or add shielding and filters OK Exceed Make proper regulation or strengthen signal...

Страница 29: ...the indicator is constant on calculate according to the above mentioned formula If the indicator is flashing add 16 to the original calculated code for example After pressing and holding for 5 seconds Operation light and Alarm light is flashing which indicates that the address code is 16 8 1 25 After pressing and holding for 10 seconds Operation light and Alarm light is constant on which indicates...

Страница 30: ...lfunction Exist T1 T2 or T2B Connecting wire between sensor and mainboard gets loose Reconnect and ensure that the connection is reliable Temperature sensor is short circuited or punctured Exist Replace sensor Chip fault or chip foot sheds off or chip is inverted correct mode is semicircular bent alignment Error Reinstall chip or install other chip with same model on the faulty unit to check wheth...

Страница 31: ...flict fault In process of heating mode operation Ignore cooling and air supply mode operation instruction outdoor unit keeps on operating according to heating mode Indoor unit with cooling and air supply mode operation displays mode conflict fault If heating mode operation stops except that indoor unit reaches setting temperature because of heating cooling and air supply mode restarts up and condu...

Страница 32: ...on or protection Examine outdoor unit and analyze according to actual condition Congealing Dew or Water Leakage in Indoor Units Yes No Yes No EEPROM malfunction EPROM chip is broken Check whether the main control chip 9177 is broken Check PCB board or replace the main control board Replace EPROM Replace EPROM ...

Страница 33: ...tion between indoor outdoor units E3 Communication malfunction between DSP Outdoor units E4 T4 temperature sensors malfunction E5 Outdoor unit voltage protection E6 PFC module protection single phase P1 High pressure protection P2 Low pressure protection P3 Compressor current protection P4 Compressor discharge temperature protection P5 Condenser high temperature protection P6 IPM protection ...

Страница 34: ...verter R410A 220V 8 kW DM12 01 01 05en 32 Outdoor units 1 E0 malfunction LED indicates E0 EEPROM malfunction Judge 1 Check whether the EEPROM is inserted well Yes No Insert the EEPROM well Replace the outdoor main board ...

Страница 35: ... wiring correctly Yes No Judge 4 Check whether the signal wiring between the indoor and outdoor units is broken Yes Replace the broken wiring No Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is grounded Yes Adopt the shield cable shield cable grounded No Indoor or outdoor main board is broken replace the main board until the malfunction is disappear Judge 1 Ch...

Страница 36: ...outdoor PCB Check whether the indicator lights LED1 or LED2 on the main control board are flashing Replace PCB Yes Install the IC U3 chip of the PCB over again check whether the system can run normally Trouble is solved Yes No Check whether the output of the transformer to CN4 socket is well No Replace PCB Yes No Replace the transformer ...

Страница 37: ...hether the wiring of the condenser s middle temp sensor is break off Connect the wiring well Yes No Check whether the resistance of condenser s middle temp sensor is wrong refer to the Annex 1 Yes Replace condenser s middle temp sensor No Judge 2 Outdoor ambient temp sensor T4 is malfunction Connect the wiring well Yes No Check whether the resistance of outdoor ambient temperature sensor T4 is wro...

Страница 38: ...dicates E5 Outdoor unit voltage protection Check the voltage of outdoor unit power supply whether the voltage between L1 and N is about 198 252V No Replace the filter board then check whether the system can run normally Check the power supply Yes Replace outdoor main board Yes Trouble is solved No ...

Страница 39: ...D indicates E6 PFC module protection Check whether the connecting line between main board and the PFC module is connected tightly No Connect it tightly check normal or not Check whether the voltage between P and N of IPM module is 270 380V Replace the outdoor main board Replace the PFC module ...

Страница 40: ...r the system can run normally Yes Replace high pressure switch No Check whether the refrigerant system is ok Replace outdoor main board No Yes Stop the unit No Yes Make the outdoor unit ventilate well No Yes Clean the heat exchanger No Yes Drop refrigerant then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and add the refrigerant again Judge 6 Check whether the refrigerant p...

Страница 41: ...ture is too low Yes Stop the unit No Judge 4 The refrigerant of the system is leakage Yes Validate Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower than 0 15MPa Leak hunting charge nitrogen or refrigerant to the system if the leakage is serious there will be distinct gas leakage cici sound if the leakage is little use the suds mixture of water and abl...

Страница 42: ...can run normally Judge 2 Check whether the outdoor ambient temperature is too high Yes Stop the unit Replace outdoor main board No No Judge 3 Check whether the outdoor unit is bad ventilation Yes Make the outdoor unit ventilate well No Judge 4 Check whether the heat exchanger is dirty Yes Clean the heat exchanger No Judge 5 The refrigerant pipe is blocked Yes Drop refrigerant then use the high pre...

Страница 43: ...r the compressor discharge temp more than 115 C No Check whether the wiring connection is right between compressor discharge temp sensor and PCB according to wiring diagrams Yes Validate Check whether the resistance of compressor discharge temp sensor is right refer to the Annex 2 No Correct the wiring connection Yes Replace outdoor main board Judge The discharge temp sensor is broken No Replace t...

Страница 44: ...is more than 65 C No Check whether the resistance of condenser temp sensor is correct refer to the Annex 1 Yes Replace outdoor PCB No Replace the temperature sensor Yes Judge1 The outdoor temp is too high more than 43 Replace outdoor PCB No Judge 2 Check whether the heat exchanger is dirty No Judge 3 The refrigerant pipe is blocked Clean the heat exchanger Yes Yes Drop refrigerant then use the hig...

Страница 45: ...ightly Connect it tightly check ok or not No Yes Check whether the three phase bridge is normal Replace the three phase bridge No Yes Check whether the 3300µF 450V electrolytic capacitor is normal No Replace this electrolytic capacitor Yes Check whether the connecting line between main board and the IPM module is connected tightly Yes Check whether the connecting line of the compressor is connecte...

Страница 46: ...on 1 Summarize of Installation 45 2 Installation of Indoor Unit 48 3 Installation of Outdoor Unit 50 4 Installation of Refrigerant Pipe 52 5 Processing Installation of Drainage Pipe 56 6 Insulation Work 59 7 Electric Installation 61 8 Test Running 65 9 Precautions on Refrigerant Leakage 66 ...

Страница 47: ...DM12 01 01 05en MIV V4 Mini DC Inverter R410A 220V 8 kW Installation 45 1 Summarize of Installation 1 1 Installation Procedure ...

Страница 48: ...d with relevant National Electric Standard 5 The power supply leakage protector and manual of all the indoor units connecting to the same outdoor unit should be universal Please set all the indoor unit power supply of one system into the same circuit 6 It is suggested to use 3 core shielded wire as signal wire between indoor and outdoor units multi core wire is unavailable Pay attention to the con...

Страница 49: ...ring Includes the power wiring and communication wiring Recheck the connection according to our corresponding wire diagrams Especially please remember our communication wire is polar it means you must connect the communication wire correspondingly to the terminal block 3 Additional charge of refrigerant Recheck the calculation formula and recalculate the total recharge volume according to our supp...

Страница 50: ...allation of Indoor Unit 2 1 Hanging and Transportation Please refer to Indoor unit Installation Manual 2 2 Required Installation Place 2 2 1 Cassette Type Type A B C One way Cassette 1000mm above Four way Cassette 1000mm above 2300mm above 2 2 2 Duct Type 2 2 3 Wall Mounted Type ...

Страница 51: ...Connecting point of refrigerant pipe E Liquid side Drain point Hook Ceiling installation Hanging arm D Connecting point of refrigerant pipe D gas side Drain point E Connecting point of refrigerant pipe E Liquid side Capacity W A B C D E F G H 3600 7100 990 660 206 505 506 907 200 203 8000 10500 1280 660 206 795 506 1195 200 203 14000 16000 1670 680 244 1070 450 1542 200 240 ...

Страница 52: ... radio to prevent noise or The insulation of the metal parts of the building and the air conditioner should comply with the regulation of National Electric Standard CAUTION Keep indoor unit outdoor unit power supply wiring and transmission wiring at least 1 meter away from televisions and radios This is to prevent image interference and noise in those electrical appliances Noise may be generated d...

Страница 53: ...DC Inverter R410A 220V 8 kW Installation 51 NOTE All the pictures in this manual are for explanation purpose only They may be slightly different from the air conditioner you purchased depend on model The actual shape shall Prevail ...

Страница 54: ...igerant piping Permitted value Piping Pipe Length Total Pipe Length Actual 100m L1 L2 L3 L4 L5 L6 A B C D E Maximum Piping L Actual Length 45m L1 L2 L3 L4 L5 L6 E Equivalent Length 50m L3 L4 L5 L6 E Pipe length from the first line branch to farthest indoor unit 20m Drop Height Indoor Unit outdoor unit Drop Height Outdoor Unit Up 20m Outdoor Unit Down 20m Indoor Unit to Indoor Unit Drop Height 8m N...

Страница 55: ... outdoor unit kW Gas side Liquid side R410A 80 15 9 9 5 Remarks A converter pipe is needed for the connection between first branch joint and outdoor unit Notes Branch header must be connected with indoor units directly the further branch connection is not allowed 4 2 3 The maximum connection of indoor units Capacity of outdoor unit kW Maximum Quantity of Indoor unit Sum capacity of indoor unit kW ...

Страница 56: ...e mm 45 6 4 12 7 56 9 5 15 9 4 2 6 Modification main pipe 1 According to the 4 2 2 and step 4 2 4 of calculation result If the main pipe dimension according to outdoor capacity selection result are different from indoor capacity selection result so the main pipe dimension you should selection bigger pipe 4 2 7 Connecting method Gas side Liquid side 3 4 5 HP Outdoor unit Flaring nut Flaring nut 4 2...

Страница 57: ...diameter and the length of the liquid side pipe of the outdoor unit indoor unit connection Table 6 8 Liquid Side Piping Diameter Refrigerant to be added Per meter Piping 6 4 0 022kg 9 5 0 060kg 12 7 0 110kg 15 9 0 190kg 19 1 0 290kg 22 2 0 380kg NOTE Additional refrigerant volume of branch pipe is 0 1kg per item Consider the liquid side of branch pipe only ...

Страница 58: ...ement at least The drainpipe should be heat insulated to prevent atomization Drainpipe should be installed before installing indoor unit After powering on there is some water in water receiver plate Please check if the drain pump can act correctly All connection should be firm Wipe color on PVC pipe to note connection Climbing horizontal and bending conditions are prohibited The dimension of drain...

Страница 59: ...the traverse main pipe overlong 5 4 2 Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system Selection the diameter Number of connecting indoor units Calculate drainage volume Select the diameter Calculate allowed volume Total cooling capacity of indoor units HP 2 l hr Allowed volume lean 1 100 l hr I D mm Thick Hard PVC 14 25 3 0 Hard PVC 14 88 30 3 ...

Страница 60: ...arge normally 5 5 2 3 Stop the air conditioner running turn off the power and put back the cover Stop the air conditioner After 3 minutes check if it has abnormity If the collocation of drainpipes is illogical the water will flow back overfull which will cause the alarm lamp flashes even circumfluence from the water plate Keep on pouring water until it gives an alarm signal for high water level ch...

Страница 61: ...erial thickness Refrigerant pipe 6 4 25 4 10mm 28 6 38 0 15mm 38 0 67 0 20mm Drainage pipe Inner diameter 20 32 6mm 6 2 Refrigerant pipe insulation 6 2 1 Work Procedure Before laying the pipes the non jointing parts and non connection parts should be heat insulated After the gas proof test is eligible the jointing area expanding area and the flange area should be heat insulated Insulation for non ...

Страница 62: ...sposal After insulation of the pipes do the enswathe disposal with binding belt make sure it s tight 6 3 Drainage pipe insulation The connection part should be insulated or else water will be condensing at the non insulation part Note 6 3 1 The jointing area expanding area and the flange area should be heat insulated after passing the pressure test 6 3 2 The gas and liquid pipe should be heat insu...

Страница 63: ...d outdoor unit with the refrigerant system together Use 3 core screened wire as indoor and outdoor control wire The installation should comply with relevant national electric standard Power wiring should be engaged by specialized electrician 7 1 Outdoor Unit Wiring The Specification of Power Table 7 1 Capacity Kw 80 Outdoor Unit power Phase 1 phase Frequency and Voltage 220 240V 50Hz Power Wiring ...

Страница 64: ...t the wire according to their numbers Wrong connection may cause malfunction Wiring Connection Seal the wiring connection with the insulation material or the condensing dew will be caused NOTE The air conditioners can connect with Central Control Monitor CCM Before operation please wiring correctly and set system the air conditioners can connect with Central Control Monitor CCM Before operation pl...

Страница 65: ...en outdoor unit and indoor unit is BUS type An address is set on field during the installation CAUTION The wire diameter and continuous length is under the condition that the voltage vibration is within 2 If the continuous length is exceed showing value choose the wire diameter follow relevant regulation Indoor unit power supply wiring Fig 7 3 CAUTION 1 Refrigerant piping system indoor unit indoor...

Страница 66: ...MIV V4 Mini DC Inverter R410A 220V 8 kW DM12 01 01 05en 64 Installation Indoor Outdoor unit signal wire wiring Fig 7 4 ...

Страница 67: ...ing to gist for test running on the electric control box cover CAUTION Test running can not start until the outdoor unit has been connected to the power for 12hr Test running can not start until all the valves are affirmed open Never make the forced running Or the protector sits back danger will occur ...

Страница 68: ...and take necessary actions 1 Calculate the sum of the charge volume A kg Total Refrigerant volume of 10HP factory refrigerant volume superaddition 2 Calculate the indoor cubage B m as the minimum cubage 3 Calculate the refrigerant thickness Counter measure against over high thickness 1 Install mechanical ventilator to reduce the refrigerant thickness under critical level ventilate regularly 2 Inst...

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