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58

ELECTRICAL WIRING

ENGLISH

U4

Power/
Ground cable

Communication
cable

Over 50mm gap

Front view

Right view

Main power

Terminal block

Insulation sleeves

attachments

Power/

Ground cable

Ground wire

ODU-IDU
Communication cable

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Содержание Multi V S

Страница 1: ... 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 MFL67798011 Rev 03_060320 www lg com Copyright 2013 2020 LG Electronics Inc All Rights Reserved ...

Страница 2: ...conditioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You ca...

Страница 3: ...adequate or electric work is performed improperly electric shock or fire may result Ask the dealer or an authorized technician to install the air conditioner Improper installation by the user may result in water leakage electric shock or fire Always ground the product There is risk of fire or electric shock Always intstall a dedicated circuit and breaker Improper wiring or installation may cause f...

Страница 4: ...ust be taken to prevent the refrigerant concentration from exceeding the safety limit when the refrigerant leaks Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded Should the refrigerant leak and cause the safety limit to be exceeded harzards due to lack of oxygen in the room could result Operation Do not damage or use an unspecified power cable T...

Страница 5: ...cient protection against noise The inverter equipment private power generator high frequency medical equipment or radio communication equipment may cause the air conditioner to operate erroneously or fail to operate On the other hand the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting Do not install the product where it is exposed t...

Страница 6: ...turning on the main power switch can result in severe damage to internal parts Keep the power switch turned on during the operational season Do not touch any of the refrigerant piping 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...

Страница 7: ...em 40 Refrigerant charging 41 Distribution Method 42 Branch pipe Fitting 46 Leak Test and Vacuum drying 48 Vacuum Mode 49 Heat insulation of refrigerant piping 50 ELECTRICAL WIRING 50 Caution 52 Control box and connecting position of wiring 53 Communication and Power Cables 54 Wiring of main power supply and equipment capacity 54 Electric Characteristics 55 Field Wiring 59 Installation of IO Modul...

Страница 8: ...r switch setting 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 ceiling Fit facing panels Run each indoor unit in tur...

Страница 9: ...Ø 9 52 3 8 Ø 9 52 3 8 Gas Pipes mm inch Ø 15 88 5 8 Ø 15 88 5 8 Ø 15 88 5 8 Ø 15 88 5 8 Series 0 Series Chasis U7 System HP 10 12 14 Refrigerant Precharged Amount kg 4 5 6 6 lbs 9 9 13 2 13 2 Piping Connections Liquid Pipes mm inch Ø 9 52 3 8 Ø 12 7 1 2 Ø 12 7 1 2 Gas Pipes mm inch Ø 22 2 7 8 Ø 28 58 11 8 Ø 28 58 11 8 Series 0 Series Chasis U4 U3 System HP 4 5 6 Refrigerant Precharged Amount kg 1 ...

Страница 10: ... pipe must not be used Do not heat pipes more than necessary to prevent them from softening Be careful not to install wrongly to minimize economic loss because it is expensive in comparison with R22 The refrigerant R410A has the property of higher operating pressure in comparison with R22 Therefore all materials have the characteristics of higher resisting pressure than R22 ones and this character...

Страница 11: ...ing a lot of sunshine in case of installing the product at a place with a high humidity in winter near beach coast lake etc Ex Rooftop where sunshine always shines Performance of heating will be reduced and preheat time of the indoor unit may be lengthened in case of installing the outdoor unit in winter at following location Shade position with a narrow space Location with much moisture in neighb...

Страница 12: ... of values is mm In case of obstacles on the suction side 1 Stand alone installation 2 Collective installation 500 or less more 1 000 or c a 100 or more 100 or more 500 or less more 1 000 or 150 or more 150 or more c b 100 or more 200 or more 1 000 or more c 500 or less more 1 000 or 100 or more 1 000 or more 200 or more c Unit mm U3 U4 U7 a 100 or more 200 or more b 100 or more 300 or more c 300 ...

Страница 13: ... of obstacles on the discharge side 1 Stand alone installation a 500 or less more 1 000 or a 2 Collective installation 1 000 or more 100 or more 500 or less 1 000 or more 1 000 or more 100 or more Unit mm U3 U4 U7 a 500 or more 700 or more ...

Страница 14: ...de is higher than the unit 1 Stand alone installation H L 350 or more a L 500 or less 1 000 or more H 350 or more 1 000 or more 2 Collective installation L H 350 or more 1 000 or more 100 or more L 500 or less 1 000 or more H 350 or more 1 250 or more 100 or more L H L H L H L H Unit mm U3 U4 U7 a 500 or more 700 or more ...

Страница 15: ...he unit 1 Stand alone installation 2 Collective installation H L 350 or more 1 500 or more 100 or more 500 or less more 1 000 or H L 350 or more 1 500 or more 100 or more H L 350 or more 1 000 or more 500 or less more 1 000 or H L 350 or more 1 000 or more L H L H L H L H Unit mm ...

Страница 16: ...When installing several units leave space between each block as shown below considering passage for air and people 1 One row of stand alone installation 350 or more 2 000 or more 600 or more 1 000 or more 2 Rows of collective installation 2 or more L should be smaller than H L 350 or more 3 000 or more H 600 or more 1 500 or more 100 or more L H Unit mm ...

Страница 17: ...y malfunction If it is installed at snowy area attach the hood to the system Install the outdoor unit at the higher installation console by 50 cm than the average snowfall annual average snowfall if it is installed at the area with much snowfall Where snow accumulated on the upper part of the Outdoor Unit by more than 10 cm always remove snow for operation The height of H frame must be more than 2...

Страница 18: ...nstable resulting in a fall Use 2 belts of at least 8 m long Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage Hoist the unit making sure it is being lifted at its center of gravity When carrying the suspended unit pass the ropes between legs of base panel under the unit Always lift the unit with ropes attached at four points so that im...

Страница 19: ...nit s legs before being fixed The outdoor unit supports should have minimum height of 200 mm Anchor bolts must be inserted at least 75 mm At least 100 mm At least 100 mm At least 100 mm At least 100 mm At least 100mm At least 100 mm Center of the Unit For outdoor units should not be supported only by the corner supports Center of the Unit a b e e c d U3 U4 U7 a 920 1 090 b 618 700 c 330 380 d 360 ...

Страница 20: ... the bolt It may cause the unstable state of the outdoor settlement and may cause freezing of the heat exchanger resulting in abnormal operations Be sure to remove the Pallet Wood Support of the bottom side of the outdoor unit before welding Not removing Pallet Wood Support causes hazard of fire during welding WARNING Install where it can sufficiently support the weight of the outdoor unit If the ...

Страница 21: ...he tubing Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper pipe in a bar with the dimension shown in the table below 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 Copper tube 90 Slanted Uneven Rough Pipe Reamer Point down Inclined Inside is shining without scratches Smoo...

Страница 22: ...ops Do not apply excessive force to the shutoff valve Doing so may break the valve body as the valve is not a backseat type Always use the special tool 3 Make sure to tighten the cap securely Pipe size Tightening torque N m A mm flare shape Ø 9 52 38 4 12 8 13 2 90 2 45 2 A R 0 4 0 8 Ø 12 7 55 6 16 2 16 6 Ø 15 88 75 7 19 3 19 7 CAUTION Always use a charge hose for service port connection After tig...

Страница 23: ...thylene over 120 C the heat resistance temperature Add the insulation over 10mm thickness at high humidity environment Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping Closing shutoff valve 1 Remove the cap and turn the valve clockwise with the hexagon wrench 2 Securely tighten the valve until the shaft contacts the main body seal 3 Make sure to tighten the cap s...

Страница 24: ...t cold and warm Clogging of EEV Capillary Gas shortages Degradation of refrigerant oil Poor insulation of the compressor Do not cold and warm Countermeasure No moisture in the pipe Until the connection is completed the plumbing pipe entrance should be strictly controlled Stop plumbing at rainy day Pipe entrance should be taken side or bottom When removal burr after cutting pipe pipe entrance shoul...

Страница 25: ...egradation of refrigerant oil Because it is flammable it is strictly prohibited to use Carbon dioxide Degrade the drying characteristics of gas Chevron Gas Toxic gas occurs when exposed to direct flame 2 Always use a pressure reducing valve 3 Please do not use commercially available antioxidant The residual material seems to be the oxide scale is observed In fact due to the organic acids generated...

Страница 26: ... Use hexagonal wrench to open close the valve Refrigerant Charging Port Liquid pipe Gas pipe CAUTION Please block the pipe knock outs of the front and side panels after installing the pipes Animals or foreign objects may be brought in to damage wires WARNING Always careful not to leak the refrigerant during welding The refrigerant generates poisonous gas harmful to human body if combusted Do not p...

Страница 27: ...Direction Nitrogen Direction Preparation Work Use Knock Outs of Base Pan of the outdoor unit for Left Right or Bottom pipe drawing outs Removal Area for Liquid Gas pipe bottom side connections Gas pipe Liquid pipe Wet towel CAUTION Do not give damage to the pipe base during the Knock Out work Proceed to pipe work after removing burr after Knock Out work Perform sleeve work to prevent damage to the...

Страница 28: ... the service port Remove the leakage prevention cap Gas pipe Service Port Liquid pipe Leakage Prevention Cap Liquid pipe Refrigerant Charging Port Gas pipe Pipe Drawing Out Method of drawing out pipes on the front side and right side Proceed with the pipe work as shown in the below figure for front side and right side pipe drawing out Pipe Knock Out for Liquid Gas pipes 28 PIPE CONNECTIONS BETWEEN...

Страница 29: ...rawing out common pipe through base panel Method of drawing out pipes on the rear side Proceed with the pipe work as shown in the below figure for rear side pie drawing out Liquid pipe Gas pipe Remove only liquid gas pipe Knock out Pipe Knock Out for Liquid Gas pipes Pictures may differ depending on the model ...

Страница 30: ...pipe size of indoor unit Outdoor unit capacity HP Liquid pipe mm inch Gas pipe mm inch 4 Ø 9 52 3 8 Ø 15 88 5 8 5 Ø 9 52 3 8 Ø 15 88 5 8 6 Ø 9 52 3 8 Ø 19 05 3 4 8 Ø 9 52 3 8 Ø 19 05 7 8 10 Ø 9 52 3 8 Ø 22 2 7 8 12 Ø 12 7 1 2 Ø 28 58 11 8 Indoor unit capacity kW Btu h Liquid pipe mm inch Gas pipe mm inch 5 6 19 100 Ø 6 35 1 4 Ø 12 7 1 2 16 0 54 600 Ø 9 52 3 8 Ø 15 88 5 8 22 4 76 400 Ø 9 52 3 8 Ø 1...

Страница 31: ...ipe length A B C D a b c d e 300 m L Longest pipe length Equivalent pipe length A B C D e 150 m A B C D e 175 m l Longest pipe length after 1st branch B C D e 40 m H Difference in height Outdoor Unit Indoor Unit H 50 m 40 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 15 m Assume equivalent pipe length of Y branch to be 0 5 m that of header to be 1 m cal...

Страница 32: ...ipe length of Y branch to be 0 5 m that of header to be 1 m calculation purpose Total pipe length A B C D a b c d e 300 m L Longest pipe length Equivalent pipe length A B C D e 80 m A B C D e 100 m l Longest pipe length after 1st branch B C D e 40 m H Difference in height Outdoor Unit Indoor Unit H 30 m 20 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 1...

Страница 33: ...ons are satisfied the diameter of main pipe A must be increased according to below table The equivalent length between outdoor unit and the farthest indoor unit is 90 m or more Liquid and Gas pipes are increased The level difference Outdoor unit Indoor unit is 50m or more Only liquid pipe is increased Refrigerant pipe diameter from outdoor unit to first branch A Outdoor unit total capacity HP Liqu...

Страница 34: ...sition than the header WARNING Pipe length after header branching a f It is recommended that difference in length of the pipes connected to the Indoor Units is minimized Performance difference between Indoor Units may occur Total pipe length A a b c d e f 300 m L Longest pipe length Equivalent pipe length A f 150 m A f 175 m l Longest pipe length after 1st branch f 40 m H Difference in height Outd...

Страница 35: ...pipes connected to the Indoor Units is minimized Performance difference between Indoor Units may occur Header Method Example 6 Indoor Units connected Ⓐ Outdoor Unit Ⓑ Header Ⓒ Indoor Units Ⓓ Sealed piping L 80 m H 30 m l 40 m Total pipe length A a b c d e f 300 m L Longest pipe length Equivalent pipe length A f 80 m A f 100 m l Longest pipe length after 1st branch f 40 m H Difference in height Out...

Страница 36: ... 50 m 40 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 15 m Assume equivalent pipe length of Y branch to be 0 5 m that of header to be 1 m calculation purpose Indoor Unit should be installed at lower position than the header WARNING It is recommended that difference of piping length for pipes connected to the Indoor Unit is minimized Performance differe...

Страница 37: ... m 20 m Outdoor Unit is lower than Indoor Units h Difference in height Indoor Unit Indoor Unit h 15 m Assume equivalent pipe length of Y branch to be 0 5 m that of header to be 1 m calculation purpose Indoor Unit should be installed at lower position than the header WARNING It is recommended that difference of piping length for pipes connected to the Indoor Unit is minimized Performance difference...

Страница 38: ...Ø 9 52 3 8 Ø 19 05 3 4 10 Ø 9 52 3 8 Ø 22 2 7 8 12 Ø 12 7 1 2 Ø 28 58 11 8 Outdoor unit Connection Indoor Unit Connection Indoor Unit connecting pipe from branch a b c d e f Indoor Unit capacity kW Btu h Liquid pipe mm inch Gas pipe mm inch 5 6 19 100 Ø 6 35 1 4 Ø 12 7 1 2 16 0 54 600 Ø 9 52 3 8 Ø 15 88 5 8 22 4 76 400 Ø 9 52 3 8 Ø 19 05 3 4 28 0 95 900 Ø 9 52 3 8 Ø 22 2 7 8 WARNING In case of pip...

Страница 39: ... Total liquid pipe Ø 12 7 mm x 0 118 kg m Total liquid pipe Ø 9 52 mm x 0 061 kg m Total liquid pipe Ø 6 35 mm x 0 022 kg m CF value of indoor unit Amount refrigerant of Indoor units Example 4Way Ceiling Cassette 14 5 kW 1 ea Ceiling concealed Duct w7 3 kW 2 ea Wall Mounted 2 3 kW 4 ea CF 0 64 1 0 26 2 0 24 4 2 12 kg Attach the additional refrigerant table of IDU CAUTION Do not connect 0 or 1 seri...

Страница 40: ...nit type installation position should be over 2 m from the floor Wall mounted type Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation system Limitation in piping work Prepare for earthquake and thermal stress Liquid pipe Gas pipe Ⓐ Manifold Gauge Ⓑ Low pressure side Handle Ⓒ High pressure side Handle Total amount of refrigerant in the system 0 4...

Страница 41: ...GLISH Ensure that the branch pipes are attached vertically Header 1st 1st 1st Main pipe Distribution 2nd 2nd 3rd 3nd Main pipe Distribution 1st 3rd 3rd main pipe distribution 2nd Horizontal Distribution Vertical Distribution The others Distribution Method ...

Страница 42: ...ration 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 Ⓐ To Outdoor Unit Ⓑ To Indoor Unit The indoor unit having larger capacity must be installed closer to Ⓐ than smaller one If the diameter of the refrigerant...

Страница 43: ...ould be 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 Pinched pipe B Horizontal plane View from point B in the direction of the arrow Insulate the header using the insulation material attached to the branch pipe ...

Страница 44: ...I D19 05 I D15 88 I D12 7 I D19 05 O D12 7 I D6 35 I D15 88 371 394 83 110 70 2 3 3 2 ARBLN14521 471 517 125 120 130 I D19 05 I D15 88 I D12 7 I D19 05 I D22 2 I D41 3 I D38 1 I D41 3 O D34 9 I D34 9 I D34 9 I D22 2 I D28 58 I D28 58 I D38 1 I D41 3 I D34 9 I D38 1 O D22 2 O D38 1 O D15 88 O D28 58 90 2 3 3 3 2 2 3 416 444 96 O D15 88 I D9 52 I D12 7 O D12 7 I D6 35 I D9 52 I D15 88 I D19 05 I D22...

Страница 45: ...8 ID25 4 ID15 88 ID15 88 ID15 88 120 120 150 360 ID9 52 ID9 52 ID6 35 ID6 35 ID9 52 ID12 7 ID15 88 7 branch ARBL107 120 150 160 580 ID19 05 ID15 88 ID15 88 ID12 7 ID22 2 ID28 58 ID25 4 ID15 88 120 150 700 120 ID6 35 ID9 52 ID9 52 ID6 35 ID9 52 ID12 7 ID15 88 10 branch ARBL1010 120 150 160 760 ID19 05 ID15 88 ID15 88 ID12 7 ID22 2 ID28 58 ID25 4 ID15 88 120 150 120 720 ID6 35 ID9 52 ID9 52 ID6 35 I...

Страница 46: ...me 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 01 MPa for each 1 C of temperature difference Correction Temp at the time of pressurization Temp at the time of check X 0 1 For example Temperature at the time of pressurization 3 8 MPa is 27 C 24 hour later 3 73 MPa 20 C In this case the ...

Страница 47: ...to 100 7 kPa vacuum drying If the system cannot be evacuated to 100 7 kPa 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 Scale Use a graviometer One that can measure down to 0 1 kg If you are unable to prepare such a high precision gravimeter you may use a charge cylinder Indoor uni...

Страница 48: ...cuum mode Compressor can t operate Master unit PCB DIP switch on No 5 Select the mode using Button SVC Push the button Select the Function using Button Se3 Push the button Start the vacuum mode VACC ODU V V open ODU EEV open IDU EEV open DIP switch off and push the reset button on PCB Vacuum Mode DIP SWITCH 7 Segment SW01C confirm SW02C backward SW03C forward SW04C cancel SW01D reset SW01C confirm...

Страница 49: ... asphalt roofing shall not be required Bad example Do not insulate gas or low pressure pipe and liquid or high pressurepipe together Liquid pipe Gas pipe Power cables Finishing tape Insulating material Communication cables Be sure to fully insulate connecting portion These parts are not insulated Good example Liquid pipe Communication cables Communication cables Separ ation Gas pipe Power cables I...

Страница 50: ...ired with the same multiplecore cable the resultant poor transmitting and receiving will cause erroneous operations mark in the figure below Only the communication cable specified should be connected to the terminal block for Outdoor Unit communication CAUTION Be sure to correct the outdoor unit to earth Do not connect ground wire to any gas pipe liquid pipe lightening rod or telephone earth line ...

Страница 51: ...y is applied to N phase by mistake check damaged parts in control box and replace them Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block Round pressure terminal Power cable When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause ab...

Страница 52: ...be connected between them When connecting communication cable between outdoor unit and indoor units with shielded cable connect the shield ground to the earth screw Side panel WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight Provide an appropriate cover to intercept direct sunlight Indoor communication PCB Main PCB Terminal block Take care of the phase sequen...

Страница 53: ...ated in direct proportion to the additional length of cable involved If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased If the cable are laid inside conduits then the following point must also be taken into account when grouping various cable together for introduction into the conduits Power cable including power supply to air...

Страница 54: ...are not fixed firmly it may cause heating or fire Make sure to use the appropriate type of overcurrent protection switch Note that generated overcurrent may include some amount of direct current Rated Current A Sectional Area mm2 0 2 Tinsel cord 0 2 and 3 0 5 3 and 6 0 75 6 and 10 1 10 and 16 1 5 16 and 25 2 5 25 and 32 4 32 and 40 6 40 and 63 10 Wiring of main power supply and equipment capacity ...

Страница 55: ...o make ground connection WARNING Indoor Unit ground wires are required for preventing electrical shock accident during current leakage Communication disorder by noise effect and motor current leakage without connection to pipe Don t install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply Install the main switch that can interrupt all the...

Страница 56: ...wire BUS type STAR type Abnormal operation can be caused by communication defect when connection of communication cable is installed like below figure STAR type Connection of communication cable must be installed like below figure between indoor unit to outdoor unit ...

Страница 57: ...mmunication cable Insulation sleeves attachment Power Ground cable Power Ground cable View A A Communication cable Over 50mm gap Fix firmly not to be displaced ODU IDU Communication cable Hold power cable Communication cable Main power Terminal block Hold Communication cable Ground wire Fix firmly not to be displaced Over 50mm gap Power Ground cable Communication cable Over 50mm gap Power Ground c...

Страница 58: ...CAL WIRING ENGLISH U4 Power Ground cable Communication cable Over 50mm gap Front view Right view Main power Terminal block Insulation sleeves attachments Power Ground cable Ground wire ODU IDU Communication cable ...

Страница 59: ...nated location with two clamp cords 105 mm Connect the connection wires according to the instructions Please refer to Setting and Using Method About more information of IO Module please refer to IO Module manual CAUTION Be sure to turn off outdoor unit power before installation Pictures may differ depending on the model ...

Страница 60: ...d be changed when the power is OFF Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds after applying the power This number represents the setting condition For example represents R410A 10 HP Initial display order Example ARUN100LSS0 Order No Note 4 14 Model capacity 1 Cooling only 2 Heat pump 38 380 V 46 460 V 22 220 V 1 Standard 5 Cold temperature area ...

Страница 61: ...oor unit PCB After completing addressing address of each indoor unit is indicated on the wired remote control display window CH01 CH02 CH03 CH06 Indicated as numbers of connected indoor units Heat Pump MAIN PCB DIP SWITCH 7 Segment SW01C confirm SW02C backward SW03C forward SW04C cancel SW04C cancel SW01D reset DIP SWITCH 7 Segment SW01C confirm SW02C backward SW01D reset SW03C forward CAUTION In ...

Страница 62: ...wired remote control or indoor unit display window It is not an error message will disappeared when on off button is pressed on remote control ex Display of 01 02 15 means connection of 15 indoor units and Automatic addressing is completed normally Automatic addressing start Waiting 3 minutes Power On Press RED Button for 5 s SW01C 7 segment LED 88 Don t press RED Button SW01C Waiting about 2 7 mi...

Страница 63: ... save in EEPROM Snow removal rapid defrost oFF op1 op3 selected the option change the set value blank save in EEPROM Target pressure adjusting oFF op1 op6 selected the option change the set value blank save in EEPROM Functions save in EEPROM will be kept continuously though the system power was reset DIP switch 3 can be OFF except when installing the only 4 series indoor units named ARNU 4 Setting...

Страница 64: ...everal sets of Indoor Units into a group set the group ID from 0 to F for this purpose Outdoor Units Main PCB U3 U7 U4 Example Group number setting 1st number indicate the group number 2nd number point out indoor unit number SODU B SODU A IDU B IDU A CEN B CEN A DRY1 DRY2 GND 12V B D A C B D A C 1 F Group Indoor unit Group recognizing the central controller No 0 group 00 0F No 1 group 10 1F No 2 g...

Страница 65: ...n Cool Heat Selection mode is set Function setting Switch control Function Switch up Switch down oFF op1 mode op2 mode Right side on Left side off Not operate Cooling Cooling Right side on Right side on Not operate Heating Heating Left side off Not operate Fan mode Off CAUTION Ask an authorized technician to setting a function If do not use a function set an off mode If use a function first instal...

Страница 66: ...re compensation mode setting method FAN Maximum RPM of each step Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn2 Push the button Select the Option using Button op1 op3 Push the button Start the Static pressure compensation mode Save the selected option value in EEPROM Capacity 8HP 10HP Max RPM Standard 800 650 op1 850 700 op...

Страница 67: ... Function using Button Fn3 Push the button Select the Option using Button op1 op15 Push the button Start the Night low noise function Save the selected option value in EEPROM Step Judgement Time Hr Operation Time Hr op1 8 9 op2 6 5 10 5 op3 5 12 op4 8 9 op5 6 5 10 5 op6 5 12 op7 8 9 op8 6 5 10 5 op9 5 12 op10 continuous operation op11 continuous operation op12 continuous operation op13 6 5 10 5 op...

Страница 68: ...tch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn5 Push the button Select the Option using Button 0 254 Push the button ODU address is set CAUTION Ask an authorized technician to setting a function If use a function first install a Central controller ...

Страница 69: ...utton Select the Function using Button Fn6 Push the button Select the Option using Button oFF op1 op3 Push the button Mode is set CAUTION Ask an authorized technician to setting a function If do not use a function set an off mode Mode setting Setting Mode OFF Not setting op1 Snow removal mode op2 Rapid defrost mode op3 Snow removal mode Rapid defrost mode ...

Страница 70: ... op1 op6 Push the button Select the Function using Button Fn8 Push the button Target pressure is set Select the Option using Button HEAT COOL Push the button CAUTION Ask an authorized technician to setting a function If do not use a function set an off mode Change a power consumption or capacity Setting Mode low pressure kPa high pressure kPa off 778 2 990 op1 699 3 121 op2 739 2 827 op3 843 2 696...

Страница 71: ...signal in indoor unit PCB 0 4 Drain pump Malfunction of drain pump 0 5 Communication error outdoor unit indoor unit Failing to receive outdoor unit signal in indoor unit PCB 0 6 Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short 0 9 Indoor EEPROM Error In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF 1 0 Poor fa...

Страница 72: ...essure Sensor open or short 4 4 1 Outdoor Unit Air Temperature Sensor Fault Outdoor Unit Air Temperature Sensor open or short 4 5 1 Outdoor Unit Heat Exchanger Temperature Sensor Front side Fault Outdoor Unit Heat Exchanger Temperature Sensor Front side open or short 4 6 1 Outdoor Unit Suction Temperature Sensor Fault Outdoor Unit Suction Temperature Sensor open or short 5 0 1 Omitting connection ...

Страница 73: ... Error 1 5 1 1 Failure of operation mode conversion at Outdoor Unit Outdoor Unit Failure of operation mode conversion at Outdoor Unit Display Title Cause of Error 6 7 1 Outdoor Unit Fan Lock Restriction of Outdoor Unit 7 1 1 Converter CT Sensor Error of Outdoor Unit Converter CT Sensor open or short of Outdoor Unit 8 6 1 Outdoor Unit Main PCB EEPROM Error Communication Fail Between Outdoor Unit Ma...

Страница 74: ...vided into 2 or more refrigerant systems and each system is independent amount of replenished refrigerant of each system shall be adopted Amount of replenished refrigerant per one outdoor unit system Amount of replenished refrigerant at factory shipment Amount of additionally replenished refrigerant depending on piping length or piping diameter at customer Outdoor unit Indoor unit Outdoor unit Ind...

Страница 75: ...nical ventilator Reducing the outdoor refrigerant qty 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 case the result of calculation exceeds the limiting concentration perform the same calculations by shifting to the second smallest and the third smallest rooms until at last the ...

Страница 76: ...the windbreak for easy air flow Select a well drained place CAUTION Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be exposed to sea wind salty wind directly It can result corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or...

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