LG Multi V 5 ARUM080LTE5 Installation Manual Download Page 22

Page: 22 / 55

ENGLISH

Refrigerant pipe diameter from outdoor unit to ﬁrst
branch. (A)

Y branch, Header and HR unit connection pattern

* If available on site, select pipe size according to upper table.

Otherwise it doesn’t need to be increased

Pattern 1

HR1

48 k

HR2

48 k

• Impossible installation : Head branch pipe HR unit

Pattern 2

HR1

7 k

24 k

• Impossible installation : HR unit Head branch
pipe Y and Head branch pipe.

ODU.

Capacity

(hp)

Standard Pipe Diameter

Pipe diameter when pipe length is

≥

90 m (295 ft) or when height differential

(ODU

IDU) is > 50 m (164 ft)

Liquid Pipe

mm (inch)

Low pressure

gas pipe

mm (inch)

High pressure

gas pipe

mm (inch)

Liquid Pipe

mm (inch)

Low pressure

gas pipe

mm (inch)

High pressure

gas pipe

mm (inch)

Ø 9.52 (3/8)

Ø 19.05 (3/4) Ø 15.88 (5/8)

Ø 12.7 (1/2) Not increased Not increased

Ø 9.52 (3/8)

Ø 22.2 (7/8)

Ø 19.05 (3/4)

Ø 12.7 (1/2) Not increased Not increased

Ø 12.7 (1/2) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Ø 15.88 (5/8) Not increased Not increased

14~16

Ø 12.7 (1/2) Ø 28.58 (1-1/8) Ø 22.2 (7/8)

Ø 15.88 (5/8) Not increased Not increased

18~20

Ø 15.88 (5/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8)

Ø 19.05 (3/4) Not increased Not increased

Ø 15.88 (5/8) Ø 28.58 (1-1/8) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Not increased Not increased

Ø 15.88 (5/8) Ø 34.9 (1-3/8) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Not increased Not increased

26~34

Ø 19.05 (3/4) Ø 34.9 (1-3/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Not increased Not increased

Ø 19.05 (3/4) Ø 41.3 (1-5/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Not increased Not increased

38~60

Ø 19.05 (3/4) Ø 41.3 (1-5/8) Ø 34.9 (1-3/8)

Ø 22.2 (7/8) Not increased Not increased

62~64

Ø 22.2 (7/8)

Ø 44.5 (1-3/4) Ø 41.3 (1-5/8)

Ø 25.4 (1)

Not increased Not increased

66~96

Ø 22.2 (7/8) Ø 53.98 (2-1/8) Ø 44.5 (1-3/4)

Ø 25.4 (1)

Not increased Not increased

Pattern 3

HR1

48 k 48 k 48 k 48 k

• The maximum total capacity of indoor
units is 56.4kW(192 kBtu/h).

Pattern 4

12 k

• The maximum total capacity of a branch
pipe of HR unit is 14.1kW(48 kBtu/h).

HR1

Pattern 5

HR1

48 k

HR2

48 k

HR1

24 k

12 k

Pattern 6

Summary of Contents for Multi V 5 ARUM080LTE5

Page 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 For Heat Pump Heat Recovery system Original instruction Copyright 2018 LG Electronics Inc All Rights Reserved ENGLISH ESPAÑOL ...

Page 2: ... 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 fire or electric shock For re installation of the ...

Page 3: ...witch thermal switch or other protection device is shorted and operated forcibly or parts other than those specified by LGE are used fire or explosion may result Ventilate before operating air conditioner when gas leaked out It may cause explosion fire and burn Securely install the cover of control box and the panel If the cover and panel are not installed securely dust or water may enter the outd...

Page 4: ...rrying capacity and rating Cables that are too small may leak generate heat and cause a fire Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Keep the unit away from children The heat exchanger is very sharp It can cause the injury such as cutting t...

Page 5: ...Safely dispose of the packing materials Packing materials such as nails and other metal or wooden parts may cause stabs or other injuries Tear apart and throw away plastic packaging bags so that children may not play with them If children play with a plastic bag which was not torn apart they face the risk of suffocation Turn on the power at least 6 hours before starting operation Starting operatio...

Page 6: ... Installation of Zoning Control 17 Caution 18 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 18 Preparation Work 18 Pipe Drawing Out during Single Series connection 19 Refrigerant piping system 20 Preparation Work 20 Pipe Drawing Out during Single Series connection 21 Refrigerant piping system 22 Pipe Connection Method between outdoor unit indoor unit 26 Branch pipe Fitting 28 Distribution Metho...

Page 7: ...st be charged in its liquid state If the refrigerant is charged in its gaseous state its composition changes and the system will not work properly Do not place the refrigerant container under the direct rays of the sun to prevent it from exploding For high pressure refrigerant any unapproved pipe must not be used Do not heat pipes more than necessary to prevent them from softening Be careful not t...

Page 8: ...t lake etc Ex Rooftop where there is always sunshine 5 4 6 419 16 1 2 61 2 13 32 137 5 13 32 124 4 7 8 128 5 1 32 30 1 3 16 60 2 3 8 More than 300 11 13 16 Servicing space More than 450 17 23 32 Servicing space More than 100 3 15 16 More than 100 3 15 16 Servicing space Servicing space More than 100 3 15 16 Servicing space More than 100 3 15 16 More than 100 3 15 16 Servicing space Servicing space...

Page 9: ...nts so that impact is not applied to the unit Attach the ropes to the unit at an angle of 40 or less Locking points for transportation ropes Forklift Carrying Guide Forklift Carrying Hole LIFTING METHOD INSTALLATION SPACE Individual Installation During the installation of the unit consider service inlet and outlet acquire the minimum space as shown in the figures below Category Installation Space ...

Page 10: ...table 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 support strength is not enough...

Page 11: ...ombination to tighten the flare nut When connecting a flare nut coat the flare inner and outer faces with oil for R410A PVE and hand tighten the nut 3 to 4 turns as the initial tightening Union 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 securely F...

Page 12: ...e work is required Always use the nitrogen not use oxygen carbon dioxide and a Chevron gas Please use the following nitrogen pressure 0 02 MPa 2 9 psi Oxygen Promotes oxidative degradation 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 Always use a pressur...

Page 13: ...8 I D 22 2 O D 19 05 I D 19 05 O D 15 88 I D 19 05 O D 15 88 I D 12 7 I D 15 88 O D 19 05 C C C I D 28 58 O D 22 2 125 I D 41 3 O D 34 9 111 130 416 408 I D 28 58 I D 28 58 I D 34 9 I D 41 3 I D 38 1 O D 34 9 I D 31 8 I D 22 2 I D 28 58 341 111 298 I D 34 9 I D 41 3 I D 28 58 134 415 375 I D 44 48 I D 53 98 I D 41 3 I D 28 58 I D 34 9 O D 28 58 I D 22 2 I D 34 9 O D 28 58 I D 22 2 I D 34 9 O D 28 ...

Page 14: ... film can cause clogging or damage to the compressor unit and flux can harm the copper piping or refrigerant oil A B WARNING When installing and moving the air conditioner to another site be sure to make recharge refrigerant after perfect evacuation If a different refrigerant or air is mixed with the original refrigerant the refrigerant cycle may malfunction and the unit may be damaged After selec...

Page 15: ...O D 28 58 I D 34 9 O D 22 2 I D 28 58 I D 31 8 I D 22 2 O D 28 58 I D 34 9 I D 19 05 I D 22 2 O D 28 58 I D 19 05 O D 15 88 I D 19 05 O D 15 88 I D 22 2 O D 19 05 I D 19 05 O D 15 88 I D 19 05 O D 15 88 O D 34 9 I D 28 58 I D 12 7 I D 15 88 O D 19 05 I D 15 88 I D 19 05 O D 22 2 I D 28 58 I D 22 2 O D 190 05 A B C D Capability IDU side connection pipe ODU to ODU connection pipe 1st branch ODU to O...

Page 16: ... PRHR042A HR unit are 32 indoor units The Maximum indoor units per a branch pipe of HR unit are 8 indoor units There is not operate Auto changeover Mode override function in the zoning group When there are operating indoor units on cooling heating mode another indoor units aren t changed on heating cooling mode in the zoning group Joint Method of HR Unit Big Duct ARNU76GB8 ARNU763B8 ARNU96GB8 ARNU...

Page 17: ...tes concerning both the piping length and the amount of additional refrigerant 10 Never perform a pump down This will not only damage the compressor but also deteriorate the performance 11 Never use refrigerant to perform an air purge Always evacuate air by using a vacuum pump 12 Always insulate the piping properly Insufficient insulation will result in a decline in heating cooling performance dri...

Page 18: ...Pump System Installation Liquid pipe Gas pipe Gas pipe Liquid pipe Remove leakage prevention cap Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work Proceed the leakage prevention cap removal as follows Verify whether all the pipes are locked Extract remaining refrigerant or air inside using the service port Remove the leakage prevention cap Service Port L...

Page 19: ...0 m 492 ft 200 m 656 ft h 40 m 131 ft 10m or less ODU Capacity Master Slave 1 Slave 2 Slave 3 h See Table 4 Combination of Y branch header Method Ⓐ Outdoor Unit Ⓑ 1st branch Y branch Ⓒ Y branch Ⓓ Indoor Unit Ⓔ Connection branch pipe between Outdoor units ARCNN41 Ⓕ Connection branch pipe between Outdoor units ARCNN31 Ⓖ Connection branch pipe between Outdoor units ARCNN21 Ⓗ Header Ⓘ Sealed piping Sl...

Page 20: ...es are locked Extract remaining refrigerant or air inside using the service port Remove the leakage prevention cap Service Port Liquid pipe Low Pressure Gas pipe High Pressure Gas pipe Leakage Prevention Cap Method of drawing out pipes on the bottom side Drawing out common pipe through side panel Liquid pipe Low Pressure Gas pipe High Pressure Gas pipe Remove Knock Out for the bottom side of Liqui...

Page 21: ...4 Ø 15 88 5 8 33 6 114 700 Ø 9 52 3 8 Ø 22 2 7 8 Ø 19 05 3 4 50 4 229 000 Ø 12 7 1 2 Ø 28 58 1 1 8 Ø 22 2 7 8 61 6 210 600 Ø 15 88 5 8 Ø 28 58 1 1 8 Ø 22 2 7 8 72 8 210 600 Ø 15 88 5 8 Ø 34 9 1 3 8 Ø 28 58 1 1 8 100 8 344 000 Ø 19 05 3 4 Ø 34 9 1 3 8 Ø 28 58 1 1 8 173 6 592 500 Ø 19 05 3 4 Ø 41 3 1 5 8 Ø 34 9 1 3 8 184 8 630 700 Ø 22 2 7 8 Ø 44 5 1 3 4 Ø 41 3 1 5 8 224 0 764 400 Ø 22 2 7 8 Ø 53 98...

Page 22: ... 1 1 8 Ø 19 05 3 4 Ø 15 88 5 8 Not increased Not increased 14 16 Ø 12 7 1 2 Ø 28 58 1 1 8 Ø 22 2 7 8 Ø 15 88 5 8 Not increased Not increased 18 20 Ø 15 88 5 8 Ø 28 58 1 1 8 Ø 22 2 7 8 Ø 19 05 3 4 Not increased Not increased 22 Ø 15 88 5 8 Ø 28 58 1 1 8 Ø 28 58 1 1 8 Ø 19 05 3 4 Not increased Not increased 24 Ø 15 88 5 8 Ø 34 9 1 3 8 Ø 28 58 1 1 8 Ø 19 05 3 4 Not increased Not increased 26 34 Ø 19 ...

Page 23: ... capacity Slave 2 Slave 3 G Refrigerant pipe diameter for outdoor unit capacity Slave 3 L1 L2 L3 H1 E G F Slave3 Slave2 Slave1 Master l 40 m 131 ft h 40 m 131 ft Indoor Unit 1st branch Refrigerant pipe diameter from outdoor unit to ﬁrst branch Level Difference Outdoor unit Outdoor unit 5 m 16 4 ft Max length from first branch to each outdoor unit L1 L2 L3 Less than 10 m 32 8 ft equivalent length o...

Page 24: ...ity with Downward indoor units Since the main pipe diameter of 22HP outdoor unit is Ø 28 58 1 1 8 Low pressure gas pipe Ø 15 88 5 8 Liquid pipe Ø 22 2 7 8 High pressure gas pipe is used as the main pipe and the connection pipe between 1st and 2nd branch 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 ...

Page 25: ...ger 2m 6 6ft orlonger 2m 6 6ft orlonger CAUTION Bending radius should be at least twice the diameter of the pipe Bend pipe after 500 mm 19 7 inch or more from branch or header Do not bend U type It may affect performance or result in noise If U type bending is required the R should be more than 200 mm 7 9 inch 500mm 19 7 inch or more 500mm 19 7 inch or more R Toward indoor unit Toward indoor unit ...

Page 26: ...e 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 Branch pipe Fitting When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitte...

Page 27: ... 44 48 ID34 9 I D41 3 I D 53 98 134 1 2 3 3 2 3 3 3 3 2 460 530 0 1 9 2 7 0 4 5 R J A O D 19 05 I D 12 7 I D 15 88 O D12 7 I D6 35 I D9 52 X2 110 110 I D25 4 I D22 2 I D 19 05 I D 19 05 I D 22 2 I D 25 4 I D 25 4 I D 22 2 346 379 96 2 3 3 2 3 Unit mm inch Unit mm inch Header Models Gas pipe Liquid pipe 4 branch ARBL054 120 150 360 120 ID15 88 ID12 7 ID12 7 ID15 88 ID15 88 ID19 05 120 4 23 32 360 1...

Page 28: ...tribution The others Vacuum mode off method CAUTION ODU operation stops during vacuum 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 Valve open ODU EEV open IDU EEV open HR unit valve open SC EEV open DIP switch off and push the reset button on Mast...

Page 29: ...ipe and high low pressure common pipe Make Vacuum from liquid pipe gas pipe and high low pressure common pipe with the service valve closed Never perform air purging using refrigerant Vacuum drying Use a vacuum pump that can evacuate to 100 7 kPa 14 6 psi 5 Torr 755 mmHg Evacuate the system from the liquid and gas pipes with a vacuum pump for over 2 hrs and bring the system to 100 7 kPa 14 6 psi A...

Page 30: ... 0 22 lbs If you are unable to prepare such a high precision gravimeter you may use a charge cylinder Vacuum pump Vacuum pump Indoor unit Slave 1 outdoor unit Master outdoor unit Liquid pipe High Pressure Gas pipe High Pressure Gas pipe Liquid pipe Low Pressure Gas pipe Low Pressure Gas pipe Liquid side Gas side Close Close Close Close Close Close HR unit Liquid Pipe Low Pressure Gas Pipe High Pre...

Page 31: ...ype Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation system Limitation in piping work Prepare for earthquake and thermal stress Volume of the room at which Indoor Unit of the least capacity is installed Total amount of refrigerant in the system 0 44 kg m3 0 028 lbs ft3 Attach the additional refrigerant table of IDU Bad example Do not insulate ...

Page 32: ...r Unit Remote control Remote control Indoor Unit Indoor Unit 32 ENGLISH A B E B I A B D C 1 m 3 28 ft 1 m 3 28 ft D F F G B G D B H I J A Penetrations Ⓐ Sleeve Ⓑ Heat insulating material Ⓒ Lagging Ⓓ Caulking material Ⓔ Band Ⓕ Waterproofing layer Ⓖ Sleeve with edge Ⓗ Lagging material Ⓘ Mortar or other incombustible caulking Ⓙ Incombustible heat insulation material When filling a gap with mortar cov...

Page 33: ...ill be reduced Caution Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring regulations and guidance of each electric power company Install the Outdoor Unit communication cable away from the power source wiring so that it is not affected by electric noise from the power source Do not run it through the same conduit Be sure to provide desi...

Page 34: ...od of operational faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic coupling The tables below indicates our recommendation as to appropriate spacing of communication and power cables where these are to be run side by side Communication and Power Cables Communication cable Types shielded wires Cross section 1 0 1 5 mm2 1 55 10 3 2 32 10 3 in2 Max...

Page 35: ...140LTE5 6339 ARUM160LTE5 6339 ARUM180LTE5 6339 ARUM200LTE5 6339 ARUM220LTE5 6339 ARUM240LTE5 8144 ARUM260LTE5 8144 Outdoor unit Current max Minimum cross sectional area of power supply mm 2 ARUM080LTE5 18 2 2 5 ARUM100LTE5 25 1 4 ARUM120LTE5 25 5 4 ARUM140LTE5 26 9 4 ARUM160LTE5 27 3 4 ARUM180LTE5 45 5 10 ARUM200LTE5 47 3 10 ARUM220LTE5 48 10 ARUM240LTE5 23 6 10 ARUM260LTE5 54 5 10 Field Wiring Si...

Page 36: ... Box Installer option Pull Box Installer option Pull Box Installer option HR unit Outdoor Power supply 3 Ø 4wires Indoor Power supply 1 Ø 2wires Main Switch Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable In case of Heat Recovery System Frequency Voltage range V Outdoor Indoor 60 Hz 380 V 220 V 50 Hz 380 415 V 220 240 V HR unit Slave1 Outdoor Uni...

Page 37: ...ecting Main power lines Ground wire from left side When connecting Communication wires Ground wire from left side Bottom Side CAUTION It should be wiring power cables or communication cables to avoid interference with the oil level sensor Otherwise That oil level sensor would be operated abnormally Checking the setting of outdoor units Checking according to DIP switch setting You can check the set...

Page 38: ...ave Unit DIP switch setting ODU Setting Slave 1 Slave 2 Slave 3 DIP switch setting ODU Setting Heat Pump System Factory Setting DIP switch setting ODU Setting Setting Heat pump system or Heat Recovery system Installer Setting SW02M DIP switch for setup of The function of HR unit SW03M SW04M SW01M SW03M SW04M Switch for manual valve addressing SW01M SW05M 1 valve housing 4 valve housing 7 segment S...

Page 39: ...6 321 12 5 8 83 3 9 32 1 2 3 3 I D19 05 3 4 I D19 05 3 4 O D19 05 3 4 O D19 05 3 4 2 3 2 3 1 2 O D15 88 5 8 444 17 15 32 421 16 9 16 96 3 25 32 I D15 88 5 8 I D22 2 7 8 I D22 2 7 8 I D22 2 7 8 I D22 2 7 8 I D22 2 7 8 I D22 2 7 8 O D15 88 5 8 I D6 35 1 4 I D6 35 1 4 I D28 58 1 1 8 I D19 05 3 4 I D9 52 3 8 I D9 52 3 8 I D9 52 3 8 I D9 52 3 8 Y branch pipe Unit mm inch SW05M Rotary S W for addressing...

Page 40: ...eck the connections of communication cable 88 CAUTION In replacement of the indoor unit PCB always perform Automatic addressing setting again At that time please check about using Independent power module to any indoor unit If power supply is not applied to the indoor unit operation error occur Automatic Addressing has to be performed after more than 3 minutes to improve indoor unit communition wh...

Page 41: ...power of outdoor unit PCB HR unit 8 Manual pipe detection is completed WARNING In case that central controller is not installed firstly set up central controller s setting to make address setting of indoor units In case that central controller is installed please set central control address in wired remote control of indoor unit Do not set central control address of indoor unit to 0xFF If the addr...

Page 42: ...Turn DIP switch No 1 on to address valve 1 Display Existing value saved in EEPROM is displayed in 7 segment 3 Operation Set the digit of 10 1 to the number in Group High data of the wired remote control connected to the corresponding indoor unit to the valve 1 by pressing left tack S W Display Digit increasing with the times of pressing tack S W is displayed in left 7 segment 4 Operation SW05M 1 D...

Page 43: ... 1 F Group Indoor unit Group recognizing the central controller No 0 group 00 0F No 1 group 10 1F No 2 group 20 2F No 3 group 30 3F No 4 group 40 4F No 5 group 50 5F No 6 group 60 6F No 7 group 70 7F No 8 group 80 8F No 9 group 90 9F No A group A0 AF No B group B0 BF No C group C0 CF No D group D0 DF No E group E0 EF No F group F0 FF WARNING Valve address and central control address of its corresp...

Page 44: ...ting Fn 16 on on oFF Central Control Connection at Indoor Unit side Fn 19 oFF oFF on Compressor Input Current Limit mode Fn 20 oFF oFF oP1 oP10 Power Consumption Display on wired remote controller Fn 21 SPL0 SPL0 SPL1 Pd10 Pd11 Overall Defrost Operating in Low temperature Heating Fn 22 oFF on oFF Optional Base panel Heater Fn 23 oFF on oFF User Idu Comfort Cooling Mode setting Id 10 EAch Refer Com...

Page 45: ...60 op4 op6 op11 52 56 57 op7 op9 op12 49 53 55 CAUTION Request installer to set the function during installation If ODU RPM changes cooling capacity may go down Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn4 Push the button Select the Option using Button on oFF Push the button Overall defrost mode is set Mode setting on Ope...

Page 46: ...h the button Select the Option using Button op1 op4 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 Target pressure adjusting Mode setting method 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 re...

Page 47: ... 105 Hz op7 98 Hz op8 90 Hz op9 83 Hz CAUTION Ask an authorized technician to setting a function If use a function first install a Central controller Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn13 Push the button Select the Option using Button oFF op1 op7 Push the button ODU Fan Max RPM Limit Mode is set Master unit PCB DI...

Page 48: ... the button Select the Function using Button Fn16 Push the button Select the Option using Button oFF on Push the button Humidity Reference Control mode is set Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn16 Push the button Select the Option using Button Fn19 Push the button Select the Option using Button on oFF Push the but...

Page 49: ...nsumption low 2 Cooling capacity mid Power consumption mid 3 Cooling capacity high Power consumption high Master unit PCB DIP switch on No 5 Select the mode using Button Idu Push the button Select the Function using Button Id10 Push the button EEV pulse appearing seg1 seg2 Idu No seg3 seg4 Mode Select the Function using Button Idu No setting and Push the button Select the Function using Button Mod...

Page 50: ...ump 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 8 Hydro Kit Hot water storage tank Temperature sensor Pipe temperature sensor is open or short 0 9 Indoor EEPROM Error In case when the serial numbe...

Page 51: ...ting connection of R S T power of Outdoor Unit Omitting connection of outdoor unit 5 1 Excessive capacity of indoor units Excessive connection of indoor units compared to capacity of Outdoor Unit 5 2 Communication error inverter PCB Main PCB Failing to receive inverter signal at main PCB of Outdoor Unit 5 3 Communication error indoor unit Main PCB of Outdoor Unit Failing to receive indoor unit sig...

Page 52: ...eat Exchanger Temperature Sensor upper part Fault 1 5 4 Outdoor Unit Heat Exchanger Temperature Sensor lower part Fault Outdoor Unit Heat Exchanger Temperature Sensor lower part open or short 1 8 2 Outdoor unit External Board Main Sub Micom communication Error Outdoor Unit Main Board Main Sub Micom communication failed 1 8 7 Hydro Kit P HEX bursting error Inlet water temperature is below 5 degree ...

Page 53: ...ows out CAUTION FOR REFRIGERANT LEAK The installer and system specialist shall secure safety against leakage according to local regulations or standards The following standards may be applicable if local regulations are not available Introduction Though the R410A refrigerant is harmless and incombustible itself the room to equip the air conditioner should be large to such an extent that the refrig...

Page 54: ...to make a better evaluation of the hazard and risk Model Designation 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 malfu...

Page 55: ......

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