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Outdoor Unit

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Outdoor Unit

Electrical Wiring

Electrical Wiring

Areas of Caution

Remote

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Remote

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Indoor

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Outdoor Unit

Outdoor Unit

Outdoor Unit

Outdoor Unit

Indoor

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Remote

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Indoor

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Indoor

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Remote

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Indoor

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Indoor

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Indoor

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CAUTION

Be sure to correct the outdoor unit to earth. Do not connect earth line to any gas pipe, water pipe,
lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock.

WARNING

Be sure to have authorized electric engineers do electric work using special circuits in accordance
with regulations and this installation manual. If power supply circuit has a lack of capacity or electric
work deficiency, it may cause an electric shock or fire.

1. Follow ordinance of your governmental organization for technical standard related to electrical equipment,

wiring regulations and guidance of each electric power company.

2. Install the outdoor unit transmission line away from the power source wiring so that it may not affected by

electric noise from the power source. (Do not run it through the same conduit.)

3. Be sure to provide designated grounding work to outdoor unit.

4. Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is some-

times removed at the time of service work.

5. Never connect the main power source to terminal block of transmission line. If connected, electrical parts will

be burnt out.

6. Use 2-core shield cable for transmission line.(O mark in the figure below) If transmission lines of different

systems are wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause
erroneous operations. ( mark in the figure below)

7. Only the transmission line specified should be connected to the terminal block for outdoor unit transmission.

2-core shield cable

Multi-core cable

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Содержание MULTI V PLUS ARUN1608T1

Страница 1: ... this installation manual completely before installing the product Installation work must be performed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly R410A ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH PORTUGUESE ...

Страница 2: ... Process 10 Outdoor units Information 11 Environment friendly Alternative Refrigerant R410A 15 Select the Best Location 15 Installation Space 16 Lifting method 20 Installation 21 Refrigerant piping installation 26 Electrical Wiring 46 Test Run 68 Caution For Refrigerant Leak 76 Installation guide at the seaside 78 ...

Страница 3: ...ot to do Be sure to follow the instruction Installation Have all electric work done by a licensed electrician according to Electric Facility Engineering Standard and Interior Wire Regulations and the instructions given in this manual and always use a special circuit If the power source capacity is inadequate or electric work is performed improperly electric shock or fire may result Ask the dealer ...

Страница 4: ... at the specified place Improper installation may cause the unit to top ple and result in injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product When installing and moving the air condition er to another site do not charge it with a different refrigerant from the refrigerant specified on the unit If a different refrigerant or air i...

Страница 5: ...fety limit when the refrigerant leaks Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceed ed Should the refrigerant leak and cause the safety limit to be exceeded harzards due to lack of oxy gen in the room could result Operation Do not damage or use an unspecified power cord There is risk of fire electric shock explosion or injury Use a dedicated ou...

Страница 6: ...ouch the electro static filter if the unit is so equipped There is risk of physical injury electric shock or product failure Installation Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem...

Страница 7: ...n may result in degradation of capacity When installting the unit in a hospital com munication station or similar place provide sufficient protection against noise The inverter equipment private power generator high frequency medical equipment or radio com munication equipment may cause the air condition er to operate erroneously or fail to operate On the other hand the air conditioner may affect ...

Страница 8: ... base collapses the air conditioner could fall with it causing property damage product failure or personal injury Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual A bad connection may cause water leakage Be very careful about product transportation Only one person should not carry the product if it weighs more than 20 kg Some produc...

Страница 9: ...iping during and after operation It can cause a burn or frostbite Do not operate the air conditioner with the panels or guards removed Rotating hot or high voltage parts can cause injuries Do not directly turn off the main power switch after stopping operation Wait at least 5 minutes before turning off the main power switch Otherwise it may result in water leakage or other problems Auto addressing...

Страница 10: ...s Indicate clearly who is to be responsible for switch settings Determination of division work The vacuum pump used must have a capacity of reaching at least 5 torr more than 1 hour Vacuum drying Recharge correctly as calculated in this manual and record the amount of added refrigerant Additional charge of refrigerant Make sure there are no gaps left between the facing materials used on the ceilin...

Страница 11: ...ARUC808T1 ARUC1008T1 ARUC1008T1 ARUC1208T1 ARUC808T1 ARUC808T1 16 16 16 16 16 24 2 1 0 1 2 2 20 20 20 22 24 32 300x2 300x2 300x2 300x2 300x2 300x3 661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x3 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x3 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 ...

Страница 12: ...661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x3 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x3 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x3 Ø12 7 1 2 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø19 05 3 4 Ø28 58 1 1 8 Ø28 58 1 1 8 Ø28 58 1 1 8 Ø28 58 1 1 8 Ø34 9 1 3 8 Ø34 9 1...

Страница 13: ...2 300x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 661 4x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 50 4 63 3 28 74 31 7 63 3 28 74 50 4 63 3 28 74 31 7 63 3 28 74 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 Ø12 7 1 2 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø19 05 3 4 Ø28 58 11 8 Ø28 58 11 8 Ø28 58 11 8 Ø...

Страница 14: ...0 661 4 x2 661 4 x2 661 4 x2 661 4 x2 661 4 x2 661 4 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 1280 1607 730 x2 661 4 x2 661 4 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 50 4 63 3 28 74 x2 Ø12 7 1 2 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø15 88 5 8 Ø19 05 3 4 Ø28 58 11 8 Ø28 58 11 8 Ø28 58 11 8 Ø28 58 11 8 Ø34 9 13 8 Ø34 9 13 8 Unit Syst...

Страница 15: ... indoor unit may be lengthened in case of installing the outdoor unit in winter at following location 1 Shade position with a narrow space 2 Location with much moisture in neighboring floor 3 Location with much humidity around 4 Location where ventilation is good It is recommended to install the outdoor unit at a place with a lot of sunshine as possible as 5 Location where water gathers since the ...

Страница 16: ...ront Side Rear Side A B C 900 mm or more Control box is of a open close type 250 mm or more 150 mm from the wall C A B C A B h H Front Side Rear Side C A B C Front Side Rear Side C A B C Front Side Rear Side C A B C A B Control Box Front Side Rear Side Front Side Rear Side Side view Top view Side view Top view C E D A B 250 mm or more 350mm or more at the coastal area 150 mm from the wall B A B A ...

Страница 17: ...utlet guide Procured at the site 250 mm or more D E F A B C Front view Side view When there is an obstruction above the unit When unit is surrounded by walls 900 mm or more Control box is of a open close type 250 mm or more A B A B B B Front Side Rear Side A B B B Front Side Rear Side A B B B Front Side Rear Side Front Side Rear Side A B B B ...

Страница 18: ... Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front...

Страница 19: ...umulated on the upper part of the outdoor unit by more than 10cm always remove snow for operation 1 The height of H frame must be more than 2 times the snowfall and its width shall not exceed the width of the product If width of the frame is wider than that of the product snow may accumulate 2 Don t install the suction hole and discharge hole of the outdoor unit facing to the seasonal wind Install...

Страница 20: ...e person carry product if it is more than 20 kg PP bands are used to pack some products Do not use them as a mean for transportation because they are dangerous Do not touch heat exchanger fins with your bare hands Otherwise you may get a cut in your hands Tear plastic packaging bag and scrap it so that children cannot play with it Otherwise plastic packaging bag may suffocate children to death Whe...

Страница 21: ...nchor bolt Installation Individual installation Example of collective installation Installation foot Location of anchor bolt 700 10 900 383 900 700 900 700 900 700 900 10 383 900 10 383 900 900 10 383 900 383 900 10 383 900 10 383 900 10 383 900 10 Half size ...

Страница 22: ...hat anti vibration may be done in a wide area Pipe and wiring space in case of piping and wiring on the floor surface H Beam support Concrete base support G WARNING Be sure to install unit in a place strong enough to withstand its weight Any lack of strength may cause unit to fall down resulting in a personal injury Have installation work in order to protect against a strong wind and earthquake An...

Страница 23: ...laring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 4 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again Main cause of gas leakage is defect in flaring work Carry out correct flaring work in the following procedure Pipe A Gas Liquid Gas Liquid 5 6 19 100 1 2 ...

Страница 24: ...l the piping has been connected use nitrogen to perform a gas leak check Tightening torque Union CAUTION Always use a charge hose for service port connection After tightening the cap check that no refrigerant leaks are present When loosening a flare nut always use two wrenches in combination When connecting the piping always use a spanner and torque wrench in combination to tighten the flare nut W...

Страница 25: ...y default However if it is operated for a long time in high humid atmosphere dew point tempera ture more than 23 C water drops are liable to fall In this case add heat insulation material according to the following procedure Heat insulation material to be prepared EPDM Ethylene Propylene Diene Methylene over 120 C the heat resistance temperature Add the insulation over 10mm thickness at high humid...

Страница 26: ...f the refrig erant piping has been completed Pipe joint auxiliary parts Securely perform brazing with a nitrogen blow into the service valve port Releasing pressure 0 02 MPa or less Flare nut Loose or tighten flare nut by using the wrench with both ends Coat the flare connection part with oil for the compressor Cap Remove caps and operate valve etc After opera tion always reattach caps tightening ...

Страница 27: ...therwise the product may not operate due to sludge within the pipe When connecting the pipes from the front of the outdoor unit remove part When connecting the pipes from the side of the outdoor unit remove part the whole Knock out part Sub Outdoor Unit Main Outdoor Unit Sub1 Outdoor Unit Sub2 Outdoor Unit Main Outdoor Unit Knock out Transmission Line Hole Power Cable Hole Pipe Hole Side Front 2 o...

Страница 28: ... Don t cut the pipe less than 70mm Blow nitrogen while brazing Main outdoor gas pipe Ø 38 1 Ø 34 9 Ø 34 9 Ø 28 58 Ø 28 58 Ø 41 3 Don t cut the pipe less than 70mm Blow nitrogen while brazing OD28 58 Ø19 05 Ø22 2 Ø38 1 OD34 9 Ø15 88 OD19 05 OD12 7 Ø9 52 Ø22 2 OD19 05 OD28 58 Ø19 05 Ø22 2 Ø22 2 OD19 05 Ø9 52 OD12 7 Ø9 52 OD12 7 Connection of gas pipe Connection of liquid pipe Connection of gas pipe ...

Страница 29: ...h are sold separately 6 If the diameters of the branch piping of the designated refrigerant piping differs use a pipe cutter to cut the connecting section and then use an adapter for connecting different diameters to connect the piping 7 Always observe the restrictions on the refrigerant piping such as rated length difference in height and piping diameter Failure to do so can result in equipment f...

Страница 30: ...stance between outdoor units Pipe length between Outdoor Units Gas pipe Liquid pipe High Low Pressure Common pipe Refrigerant piping installation 12 Always insulate the piping properly Insufficient insulation will result in a decline in heating cooling perfor mance drip of condensate and other such problems 13 When connecting the refrigerant piping make sure the service valves of the outdoor unit ...

Страница 31: ...its Refrigerant piping system L150m l 40m Example 5 indoor units connected Outdoor unit 1st branch Y branch indoor units Connection branch pipe between outdoor units ARCNN30 Connection branch pipe between outdoor units ARCNN20 10m or less L150m l 40m CAUTION Piping length from outdoor branch to outdoor unit 10m equivalent length max 13m for 16HP or more ...

Страница 32: ...nt pipe diameter from branch to branch B C D Total pipe length A B C D a b c d e 300m Downward indoor unit total capacity kW Btu h 5 6 19 100 Ø6 35 1 4 Ø12 7 1 2 16 54 600 Ø9 52 3 8 Ø15 88 5 8 22 4 76 400 Ø9 52 3 8 Ø19 05 3 4 33 112 600 Ø9 52 3 8 Ø22 2 7 8 47 160 400 Ø12 7 1 2 Ø28 58 11 8 71 242 300 Ø15 88 5 8 Ø28 58 11 8 104 354 900 Ø19 05 3 4 Ø34 9 13 8 104 354 900 Ø19 05 3 4 Ø41 3 15 8 Liquid p...

Страница 33: ... 175m Longest pipe length after 1st branch f 40m Difference in height outdoor unit indoor unit H 50m 40m outdoor unit is lower Difference in height indoor unit indoor unit h 15m L l H h Total pipe length A a b c d e f 300m WARNING Pipe lengths after header branch ing a f It is recommended that difference in lengths of the pipes connected to the indoor units is minimized Performance difference betw...

Страница 34: ...ranch Indoor unit Header Sealed piping L150m 40m Branch pipe can not be used after header Branch pipe can not be used after header Example 5 indoor units connected Outdoor unit 1st branch Y branch Indoor unit Connection branch pipe between outdoor units ARCNN30 Connection branch pipe between outdoor units ARCNN20 Header Sealed piping L150m 40m 10m or less ...

Страница 35: ...d that difference of piping length connected to the indoor unit is minimized Performance difference between indoor units may occur CAUTION Assume equivalent pipe length of Y branch to be 0 5m that of header to be 1m calculation purpose Indoor unit should be installed at lower position than the header Downward Indoor Unit total capacity kW Btu h 5 6 19 100 Ø6 35 1 4 Ø12 7 1 2 16 54 600 Ø9 52 3 8 Ø1...

Страница 36: ...HP outdoor unit Ø28 58 gas pipe Ø15 88 liquid pipe Pipe diameter between 1st and 2nd branch 71 7kW indoor units Ø34 9 gas pipe Ø19 05 liquid pipe in conformity with downward indoor units Since the main pipe diameter of 22HP outdoor unit is Ø28 58 gas pipe and Ø15 88 liquid pipe it should be used as the main pipe and the connection pipe between 1st and 2nd indoor branches Refrigerant pipe diameter ...

Страница 37: ...ntilation system Limitation in piping work Prepare for earthquake and thermal stress WARNING Refer to model information since the CF value of correction factor differs depending on model Total amount of refrigerant in the system 0 3 kg m3 Volume of the room at which indoor unit of the least capacity is installed Additional charge kg Product charge kg Total liquid pipe m Ø22 2mm x 0 354 kg m x 0 26...

Страница 38: ...he third branch Do not make the third main pipe distribution Do not make the main pipe distribution at or after fourth branch 2 Vertical Distribution Ensure that the branch pipes are attached vertically 3 The others Header Sub Main Sub Main 1st 1st 1st Main pipe Distribution 2nd 2nd 3rd Sub Main Sub Main Sub Main Sub Main 2nd Main pipe Distribution Sub Main 1st 3rd 3rd main pipe distribution 2nd ...

Страница 39: ... below There is no limitation on the joint mounting configuration If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint the connecting section should be cut with a pipe cutter Branch pipe should be insulated with the insulator in each kit When the number of pipes to be connected is smaller than the number of header branches install a...

Страница 40: ...e insulated with the insulator in each kit Joints between branch and pipe should be sealed with the tape included in each kit Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above B Pinched pipe Horizontal plane View from point B in the direction of the arrow Insulate the header using the insulation material attached to the branch pipe kit as...

Страница 41: ...19 05 Ø15 88 Ø12 7 OD22 2 Ø15 88 Ø34 9 Ø31 8 OD28 58 Ø28 58 Ø28 58 Ø22 2 Ø19 05 Ø22 2 Ø22 2 Ø28 58 Ø25 4 Ø9 52 OD12 7 Ø15 88 Ø12 7 Ø12 7 Ø9 52 Ø6 35 Ø9 52 Ø12 7 Ø19 05 Ø15 88 OD19 05 Ø15 88 Ø12 7 OD28 58 Ø22 2 Ø19 05 OD34 9 X 2 Ø31 8 Ø28 58 OD 9 52 Ø6 35 Ø19 05 Ø15 88 Ø15 88 Ø12 7 Ø9 52 Ø12 7 Ø15 88 Ø22 2 Ø19 05 Ø41 3 Ø28 58 Ø34 9 Ø34 9 Ø41 3 Ø38 1 Ø15 88 Ø15 88 Ø15 88 Ø12 7 Ø12 7 Ø19 05 Ø9 52 Ø9 ...

Страница 42: ...5 Ø12 7 Ø15 88 Ø12 7 Ø28 58 Ø19 05 Ø15 88 Ø9 52 Ø6 35 Ø9 52 Ø12 7 Ø6 35 Ø15 88 Ø12 7 Ø28 58 Ø19 05 Ø15 88 Ø9 52 Ø6 35 Ø9 52 Ø12 7 Ø6 35 Ø15 88 Ø12 7 Ø28 58 Ø19 05 Ø15 88 Ø9 52 Ø6 35 Ø9 52 Ø12 7 Ø6 35 Ø15 88 Ø15 88 Ø19 05 Ø6 35 Ø9 52 Ø9 52 Ø6 35 Ø15 88 Ø19 05 Ø31 8 Ø38 1 Ø12 7 Models Gas pipe Liquid pipe OD19 05 Ø15 88 Ø12 7 OD12 7 Ø9 52 OD19 05 Ø15 88 Ø12 7 OD12 7 Ø9 52 OD38 1 Ø34 9 Ø28 58 OD19 05...

Страница 43: ...nd high low pressure common pipe The test result can be judged good if the pressure has not be reduced after leaving for about one day after com pletion of nitrogen gas pressurization Note If the ambient temperature differs between the time when pressure is applied and when the pressure drop is checked apply the following correction factor There is a pressure change of approximately 0 1 kg cm2 0 0...

Страница 44: ...vacuum break with nitro gen gas and then evacuate it again with the vacuum pump for 1hr to 100 7kPa vacuum drying If the system cannot be evacuated to 100 7kPa within 2 hrs repeat the steps of vacuum break and its drying Finally check if the vacuum gauge does not rise or not after maintaining the system in vacuum for 1 hr WARNING When installing and moving the air conditioner to another site recha...

Страница 45: ...part of heat insulation material with a finishing tape Power lines E D D B A C Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat resistant polyethylene so that no gap is observed in the joint between indoor unit and insulating material and insulating materials themselves When insulation work is insufficient there is a p...

Страница 46: ...ganization for technical standard related to electrical equipment wiring regulations and guidance of each electric power company 2 Install the outdoor unit transmission line away from the power source wiring so that it may not affected by electric noise from the power source Do not run it through the same conduit 3 Be sure to provide designated grounding work to outdoor unit 4 Give some allowance ...

Страница 47: ...nit Outdoor Unit Outdoor Unit Indoor Unit Remote control Remote control Indoor Unit Indoor Unit Remote control Remote control Indoor Unit Indoor Unit Indoor Unit Indoor Unit 2 Core Shield Cable Multi Core Cable 2 Core Shield Cable Multi Core Cable 2 Core Shield Cable Multi Core Cable WARNING Use the 2 core shield cables for transmission lines Never use them together with power cables The conductiv...

Страница 48: ...nsmission line between out door unit and indoor units with shielded wire con nect the shield ground to the earth screw WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight Provide an appropriate cover to intercept direct sunlight Noise Filter Magnetic contactor Main PCB Magnetic contactor Sub PCB Fuse Reactor Inverter Comp Interter Board Capacitor Cover Heatsink ...

Страница 49: ...o 100m For length in excess of 100m the figures will have to be recalculated in direct proportion to the additional length of line involved 2 If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased If the lines are laid inside conduits then the following point must also be taken into account when grouping various lines together for...

Страница 50: ...cal outlet to disconnect each of indoor unit separately from the power supply WARNING Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring reg ulations and guidance of each electric power company Make sure to use specified wires for connections so that no external force is imparted to terminal connections If con nections are not fixed fir...

Страница 51: ...d outdoor unit The GND terminal is a terminal for the central controller not ground line Power supply switch switch fuse Between indoor and main outdoor unit Indoor unit Outdoor unit Central controller Main outdoor unit WARNING Indoor unit ground lines are required for preventing electrical shock accident in current leakage transmission disorder by noise effect and motor current leakage without co...

Страница 52: ... GND terminal is a terminal for the central controller not ground line Between indoor and main outdoor unit Indoor unit Outdoor unit Central controller Main outdoor unit Example Connection of Transmission Cable 1 Outdoor unit WARNING Indoor unit ground lines are required for preventing electrical shock accident in current leakage transmission disorder by noise effect and motor current leakage with...

Страница 53: ...door and main outdoor unit Between main outdoor and sub outdoor unit Indoor unit Outdoor unit Central controller Indoor unit Outdoor unit Central controller Main outdoor unit Main outdoor unit Sub outdoor unit The GND terminal is a terminal for the central controller not ground line Sub Main Example Connection of Transmission Cable 2 Outdoor units WARNING Indoor unit ground lines are required for ...

Страница 54: ...or unit Between main outdoor and sub outdoor unit Indoor unit Outdoor unit Central controller Indoor unit Outdoor unit Outdoor unit Central controller Main outdoor unit Main outdoor unit Sub 1 outdoor unit Outdoor unit Sub 2 outdoor unit The GND terminal is a terminal for the central controller not ground line Example Connection of Transmission Cable 3 outdoor units WARNING Indoor unit ground line...

Страница 55: ...the central controller not ground line Power supply switch switch fuse Between indoor and main outdoor unit Indoor unit Outdoor unit Central controller Main outdoor unit Example Connection of Transmission Cable 1 Outdoor unit Half size WARNING Indoor unit ground lines are required for preventing electrical shock accident in current leakage transmission disorder by noise effect and motor current le...

Страница 56: ...unit Central controller Main outdoor unit Main outdoor unit Sub outdoor unit 3 phase 4 wires power supply 60Hz 380V Power supply 1 phase 60Hz 220V Pull box Main power supply line Branch line The GND terminal is a terminal for the central controller not ground line Sub Main Example Connection of Transmission Cable 2 Outdoor units WARNING Indoor unit ground lines are required for preventing electric...

Страница 57: ... for the central controller not ground line Main Sub1 Sub2 3 phase 4 wires power line R S T N Transmission line 3 line wired remote control Single phase of power supply line L N Transmission line 2 shield line between outdoor unit and outdoor unit Transmission line 2 shield line between indoor unit and outdoor unit Example Connection of Transmission Cable 3 Outdoor units WARNING Indoor unit ground...

Страница 58: ...e central controller not ground line Main Sub1 Sub2 3 phase 4 wires power line R S T N Transmission line 3 line wired remote control Single phase of power supply line L N Transmission line 2 shield line between outdoor unit and outdoor unit Transmission line 2 shield line between indoor unit and outdoor unit Example Connection of Transmission Cable 3 Outdoor units WARNING Indoor unit ground lines ...

Страница 59: ...Installation Manual 59 ENGLISH Electrical Wiring Location of setting Switch Main PCB 7 Segments Shows setting status SW03M DIP switch Sub Unit PCB SW03M DIP switch LED Shows setting status ...

Страница 60: ...y 2 25 41 1 255 Main model code 1 255 Sub1 model code 1 255 Sub2 model code 5 40 HP number sum of main capacity and sub capacity 2 heat pump No display cooling only 25 normal 41 R410A model 22 R22 model Checking the setting of the sub unit It is displayed by 8 LED of the sub unit A set of two LED s represents 0 1 2 and 3 in binary LED1 LED3 LED5 and LED7 are least significant bit of each digit LED...

Страница 61: ... 7 8 6 5 4 2 1 3 ON OFF 2 Save mode Setting before applying the power When the installation condition is normal almost all cases use standard mode 7 8 6 5 4 2 1 3 ON OFF 1 Standard mode default data address 7 8 6 5 4 2 1 3 ON OFF 4 Instant indoor unit checking Cooling mode With dip switch setting as left side push address red button 3 times in 3 sec With data button select the indoor unit that you...

Страница 62: ... 1 failure 7 8 6 5 4 2 1 3 ON OFF 10 Backup operation unit backup Setting before applying the power Set at the disabled unit All compressors are broken In case of all compressors of 1 unit failure backup operation is possible when 110k Series or more indoor units capacity is ON 1unit 70k or more 7 8 6 5 4 2 1 3 ON OFF 11 Backup operation Inverter comprssor backup Setting before applying the power ...

Страница 63: ... the power 7 8 6 5 4 2 1 3 ON OFF 2 The sequence of sub unit 2nd sub unit 7 8 6 5 4 2 1 3 ON OFF 4 Backup operation constant speed comp 1 backup Setting before applying the power Set at the unit of the constant speed comp 1 failure 7 8 6 5 4 2 1 3 ON OFF 5 Backup operation constant speed comp 2 backup Setting before applying the power Set at the unit of the constant speed comp 2 failure 7 8 6 5 4 ...

Страница 64: ...he 7segment When you turn both No 7 and 8 off at this time the test operation will start 3 Turn on to operation mode with all indoor devices selected Strong wind mode set temperature to 30 C for heating and 18 C for air conditioning 4 When the compressor is normally operated with the operating logic the target frequency will be 30Hz and when operated for more than 7 minutes after step 3 the unit w...

Страница 65: ...ot an error message will be disappeared when on off button is pressed on remote control ex Display of 01 02 15 means connection of 15 indoor units and auto addressing is completed normally Auto addressing start Waiting 3 minutes Power On LED 01K blinking Check outdoor PCB Press SW02M for 5 sec Check the connections of transmission line OK 7segment LED OFF Waiting about 15 minutes 7segment LED 88 C...

Страница 66: ...and GND Turn the whole system on Set the group and Indoor Unit number with a wired remote control To control several sets of Indoor Units into a group set the group ID from 0 to F for this purpose B E F C D Vcc GND A Vcc GND C D Indoor unit Outdoor unit Central controller Simple central Control Terminal block of outdoor unit Outdoor Units Group recognizing the simple central controller No 0 group ...

Страница 67: ...me Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 2ndF Using the wired remote controller 1 Press Program button and Set Clr button at the same time for 3 seconds 2 The current group and the indoor unit numbers are indicated on the 88 of the wired remote control 3 Set numbers by using the temperature adjust key 4 Press Program button and Set Clr button at the same time for 3 seconds 5...

Страница 68: ...n pipe liquid pipe and gas pipe valves are fully opened NOTE Be sure to tighten caps Check if there are any problems in automatic addressing or not Check and confirm that there are no error messages in the display of indoor units or remote controls and LED in outdoor units Checks Before Test Run CAUTION when cutting main power of the Multi V Always apply main power of the outdoor unit during use o...

Страница 69: ...ure bad ventilation around outdoor heat exchanger Bad connector contact Coil failure LEV clogged LEV clogged Check resistance between terminals and chassis Check resistance between terminals and chassis Check wiring R S T sequence or inter change last two phase connection Check the outdoor fan operation after being turned the outdoor units off for some time Remove obstacles around the outdoor unit...

Страница 70: ...ure of main outdoor unit constant speed com pressor High pressure of main outdoor unit Low pressure of main outdoor unit Air temperature sensor of indoor unit is open or short Inlet pipe temperature sensor of indoor unit is open or short Failing to receive wired remote controller signal at indoor unit PCB Malfunction of drain pump Failing to receive outdoor unit signal at indoor unit PCB Outlet pi...

Страница 71: ...ature sensor of rear side heat exchanger is open or short Current sensor of inverter compressor Discharge temperature sensor of inverter compressor Low pressure sensor of main outdoor unit High pressure sensor of main outdoor unit Air temperature sensor of main out door unit Temperature sensor of front side heat exchanger Suction temperature sensor of main outdoor unit Discharge temperature sensor...

Страница 72: ...short Discharge temperature sensor of the constant speed com pressor 2 of sub1 outdoor unit is open or short Temperature sensor of front side heat exchanger of sub1 unit is open or short Discharge temperature of constant speed compressor 1 of sub1 outdoor unit Discharge temperature of constant speed compressor 2 of sub1 outdoor unit Discharge temperature of constant speed compressor 1 of sub2 outd...

Страница 73: ...r of rear side heat exchanger of sub1 unit is open or short Liquid pipe temperature sensor of sub1 outdoor unit is open or short Subcooling inlet temperature sensor of sub1 outdoor unit is open or short Subcooling outlet temperature sensor of sub1 outdoor unit is open or short High pressure sensor of sub2 outdoor unit is open or short Low pressure sensor of sub2 outdoor unit is open or short Air t...

Страница 74: ...down Failure of Sub1 constant speed compressor2 operation Comp locking Check Valve leakage comp dielectric breakdown Comp locking Check Valve leakage comp dielectric breakdown Comp locking Check Valve leakage comp dielectric breakdown Comp locking Check Valve leakage comp dielectric breakdown Comp locking Check Valve leakage comp dielectric breakdown Failure of Sub2 constant speed compressor1 oper...

Страница 75: ...Installation Manual 75 ENGLISH Test Run Position of the LED01Y in inverter board ...

Страница 76: ...re of limiting concentration Limiting concentration is the limit of Freon gas concentration where immediate measures can be taken with out hurting human body when refrigerant leaks in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation Limiting concentration 0 3kg m3 R410A Outdoor unit No 1 system Flow of refr...

Страница 77: ... with mechanical ventilator Reducing the outdoor refrigerant qty Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air Outdoor unit Indoor unit Smallest room R410A Refrigerant concentration kg m3 Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 In cas...

Страница 78: ...e in the seaside installation please contact LG Electronics for the additional anticorrosion treatment 2 Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the oppo...

Страница 79: ...P No 3828A24002G Printed in Korea After reading this manual keep it in a place easily accessible to the user for future reference ...

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