LG Multi V PRHR022A Installation Manual Download

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Please call the installing contractor of your product, as warranty service will be provided

by them.

CANADA

Service call Number # : (888) LG Canada, (888) 542-2623

Numéro pour les appels de service : LG Canada, 1-888-542-2623

Summary of Contents for Multi V PRHR022A

Page 1: ...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 MFL68980308 Rev 03_051320 www lghvac com www lg com Copyright 2016 2020 LG Electronics Inc All Rights Reserved ENGLISH FRANÇAIS ESPAÑOL ...

Page 2: ... When installing and moving the air conditioner to another site do not charge it with a different refrigerant from the refrigerant specified on the unit If a different refrigerant or air is mixed with the original refrigerant the refrigerant cycle may malfunction and the unit may be damaged Do not reconstruct to change the settings of the protection devices If the pressure switch thermal switch or...

Page 3: ...may generate heat and cause a fire Be sure the installation area does not deteriorate with age If the 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...

Page 4: ... Connection of Outdoor units 15 Caution 16 PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 16 Preparation Work 17 Pipe Drawing Out during Single Series connection 17 Refrigerant piping system 19 Preparation Work 20 Pipe Drawing Out during Single Series connection 20 Refrigerant piping system 21 Series Outdoor Units 2 Units 3 Units 21 Pipe Connection Method between outdoor unit indoor unit 25 Refr...

Page 5: ...llation of outdoor unit Refer to automatic addressing flowchart Automatic addressing of indoor unit In the final check for 24 hours at 3 8 MPa 38 7 kgf cm2 551 1 psi there must be no drop in pressure Airtight test Multiple core cable must not be used suitable cable should be selected Electrical work connection circuits and drive circuits Make sure no gaps are left where the insulating materials ar...

Page 6: ...uid pipe connection port Ø 15 88 5 8 Brazing connection PRHR042A Ø 9 52 3 8 Brazing connection Ø 12 7 1 2 Brazing connection PRHR032A 4 Indoor unit Gas pipe connection port Ø 15 88 5 8 Brazing connection Ø 15 88 5 8 Brazing connection 5 Indoor unit Liquid pipe connection port Ø 9 52 3 8 Brazing connection Ø 9 52 3 8 Brazing connection 6 Control box 7 Hanger metal M10 or M8 M10 or M8 NOTE Be sure t...

Page 7: ... INSTALLATION SPACE Category Installation Space Case1 10mm 13 32inch Side Space 49mm 13 14inch Case 2 Side Space 49 mm 13 14 inch 4 sides are walls A 10 13 32 B 300 11 13 16 C 10 13 32 D 500 19 11 16 A 50 1 31 32 B 100 3 15 16 C 50 1 31 32 D 500 19 11 16 A 10 13 32 B 300 11 13 16 C 10 13 32 D 500 19 11 16 E 20 25 32 A 50 1 31 32 B 100 3 15 16 C 50 1 31 32 D 500 19 11 16 E 100 3 15 16 A 10 13 32 B ...

Page 8: ...ipes and wirings for bottom side Ⓔ H beam support Ⓕ Concrete support WARNING Install where it can sufficiently support the weight of the outdoor unit If the support strength is not enough the outdoor unit may drop and hurt people Install where the outdoor unit may not fall in strong wind or earthquake If there is a fault in the supporting conditions the outdoor unit may fall and hurt people Please...

Page 9: ...ed according to the ISO Conditions with Mist and confirmed that there is not any default However if it is operated for a long time in high humid atmosphere dew point temperature More than 23 C 73 4 F 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...

Page 10: ...nt of the oxide film is formed on the internal piping The oxide film is a caused by clogging EEV Capillary oil hole of accumulator and suction hole of oil pump in compressor It prevents normal operation of the compressor In order to avoid this problem Welding should be done after replacing air by nitrogen gas When welding plumbing pipe the work is required Regulator Nitrogen gas Pressure 0 02 MPa ...

Page 11: ... 58 1 1 8 111 4 3 8 I D 38 1 1 1 2 O D 34 9 1 3 8 I D 34 9 1 3 8 I D 22 2 7 8 408 16 1 16 I D 34 9 1 3 8 Liquid Pipe I D 19 05 3 4 I D 15 88 5 8 I D 19 05 3 4 I D 12 7 1 2 I D 9 52 3 8 83 3 9 32 I D 22 2 7 8 70 2 3 4 O D 19 05 3 4 I D 12 7 1 2 I D 15 88 5 8 O D 12 7 1 2 I D 9 52 3 8 O D 15 88 5 8 I D 19 05 3 4 I D 15 88 5 8 O D 15 88 5 8 331 13 1 32 314 12 3 8 High Pressure Gas Pipe I D 15 88 5 8 ...

Page 12: ...as pipe depending on status of refrigerant passing through the pipe You must connect 3 pipes from outdoor unit to HR unit For connection between indoor unit and HR unit you must connect both liquid pipe and gas pipe from the HR unit to the indoor unit In this case connect them to the indoor unit starting from No 1 connection port of the HR unit the port number is displayed on ports of the HR unit ...

Page 13: ... 2 1 B8 72k 34k BH WARNING A branch pipe of HR unit allows up to 14 1 kW 48 kBtu h based on cooling capacity of the indoor unit up to 14 1 kW 48 kBtu h for max installation The maximum total capacity of indoor units connected to a PRHR042A HR unit is 56 4 kW 192 kBtu h The maximum number of indoor units connected to a PRHR042A unit are 32 indoor units The Maximum indoor units per a branch pipe of ...

Page 14: ...rigerant 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 selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after bran...

Page 15: ...70 2 3 4 I D 15 88 5 8 331 13 1 32 314 12 3 8 I D 19 05 3 4 Gas Pipe I D 22 2 7 8 I D 28 58 1 1 8 I D 31 8 1 1 4 I D 28 58 1 1 8 I D 34 9 1 3 8 I D 41 3 1 5 8 130 5 1 8 I D 38 1 1 1 2 I D 22 2 7 8 O D 28 58 1 1 8 I D 34 9 1 3 8 111 4 3 8 O D 34 9 1 3 8 I D 28 58 1 1 8 I D 22 2 7 8 O D 28 58 1 1 8 416 16 3 8 408 16 1 16 I D 34 9 1 3 8 3 Unit Ⓑ ARCNN31 Liquid Pipe O D 19 05 3 4 I D 15 88 5 8 I D 22 ...

Page 16: ...rfect 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 selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after branching use an appropriate branch pipe set according to the pipe diameter of the indoor unit and the installation pipe drawing Pipe con...

Page 17: ...y Master Slave1 Slave 2 D 5 D 6 D 7 D 8 D 10 D 9 D 11 D 12 Pipe Drawing Out during Single Series connection Method of drawing out pipes on the front side Proceed with the pipe work as shown in the below figure for front side pipe drawing out Refrigerant pipe diameter from branch to branch B C D WARNING Serial connection of HR units Capacity sum of indoor units 192 4 kBtu hr Refer to the HR unit PC...

Page 18: ...mpossible installation HR unit Head branch pipe Y and Head branch pipe B A ODU Capacity HP ton 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 Vapor Pipe mm inch High Pressure Vapor Pipe mm inch Liquid Pipe mm inch Low Pressure Vapor Pipe mm inch High Pressure Vapor Pipe mm inch 8 6 Ø 9 52 3 8 ...

Page 19: ...nits to indoor units 2 pipes Gas pipe Liquid pipe B A 1 HR1 Outdoor Unit Indoor Unit Y Branch pipe Low pressure Gas pipe High pressure Gas pipe Liquid pipe Gas pipe Liquid pipe Head Branch pipe Indoor Unit Keep the 40 m 131 ft distance from the first branch to the farthest indoor 5 m 16 ft 15 m 49 ft 1 under 40 m 131 ft Keep the sum of indoor capacity under 56 4 kW 192 kBtu h Indoor Unit Indoor Un...

Page 20: ...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 h In case of heat pump system installation please weld with the proper accessory pipe included with product Combination of Y branch header Method Header Method Ⓐ Outdoor Unit Ⓑ 1st branch Y branch Ⓒ Y branch Ⓓ Indoor Unit Ⓔ Header Ⓕ Sea...

Page 21: ...d Pipe Diameter table 2 When pipe length is 90 m 295 ft or more from ODU to 1st branch When level difference is 50 m 164 ft or more Y branch Method Combination of Y branch header Method Header Method Max pipe length Outdoor Unit Indoor Unit Longest pipe length L A B C D e 150 m 492 ft 200 m 656 ft Conditional application A B b 150 m 492 ft A C e 150 m 492 ft 200 m 656 ft Conditional application A ...

Page 22: ...000 Ø 12 7 1 2 Ø 28 58 1 1 8 67 2 229 400 Ø 15 88 5 8 Ø 28 58 1 1 8 72 8 248 500 Ø 15 88 5 8 Ø 34 9 1 3 8 100 8 344 000 Ø 19 05 3 4 Ø 34 9 1 3 8 173 6 592 500 Ø 19 05 3 4 Ø 41 3 1 5 8 Table 4 Conditional Application WARNING In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A B should be of the same size with A Ex In case indoor unit combination ratio 120...

Page 23: ...e Vapor Heat Recovery High Pressure Vapor Low Pressure Vapor Pipes between outdoor units are 2 m 6 6 ft or longer Oil Trap Oil Trap Oil Trap 2 m 6 6 ft or less 2m 6 6ft orless 2m 6 6ft orless 0 2 m 0 66 ft 2 m 6 6 ft or longer 2m 6 6ft orlonger 2m 6 6ft orlonger Level Level Oil Trap Level Level Oil Trap Toward indoor unit Toward indoor unit Pipe inclination 2 or more Toward indoor unit Toward indo...

Page 24: ... 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 h Toward indoor unit Example 2 Attach the additional refrigerant table of IDU The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF correct...

Page 25: ...y be installed in a horizontal or vertical UP configuration The vertical DOWN configuration is not permitted 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 eac...

Page 26: ... I D 22 2 7 8 I D 22 2 7 8 O D 19 05 3 4 I D 25 4 1 I D 28 58 1 1 8 I D 19 05 3 4 I D 22 2 7 8 I D 15 88 5 8 I D 19 05 3 4 I D 12 7 1 2 I D 12 7 1 2 I D 15 88 5 8 I D 19 05 3 4 I D 25 4 1 O D 19 05 3 4 Liquid pipe I D 9 52 3 8 I D 12 7 1 2 I D 9 52 3 8 I D 6 35 1 4 I D 12 7 1 2 I D 9 52 3 8 I D 12 7 1 2 I D 6 35 1 4 High Pressure Vapor Pipe I D 19 05 3 4 I D 19 05 3 4 O D 19 05 3 4 I D 9 52 3 8 I ...

Page 27: ...5 3 4 2 I D 6 35 1 4 I D 9 52 3 8 I D 9 52 3 8 ARBLN14521 Gas pipe I D 12 7 1 2 70 2 3 4 471 18 17 32 517 20 11 32 125 4 29 32 130 5 1 8 I D 15 88 5 8 I D 41 3 1 5 8 I D 41 3 1 5 8 I D 41 3 1 5 8 I D 38 1 1 1 2 I D 38 1 1 1 2 I D 38 1 1 1 2 O D 38 1 1 1 2 O D 15 88 5 8 2 3 3 2 2 3 3 120 4 23 32 120 4 23 32 90 3 17 32 I D 19 05 3 4 I D 19 05 3 4 I D 22 2 7 8 I D 22 2 7 8 O D 22 2 7 8 I D 34 9 1 3 8...

Page 28: ... 32 360 14 3 16 ID 9 52 3 8 ID 6 35 1 4 ID 9 52 3 8 ID 12 7 1 2 ID 9 52 3 8 ID 6 35 1 4 7 branch ARBL107 Gas pipe 120 4 23 32 150 5 29 32 160 580 22 27 32 ID 19 05 3 4 ID 15 88 5 8 ID 15 88 5 8 ID 12 7 1 2 ID 22 2 7 8 ID 28 58 1 1 8 ID 25 4 1 Liquid pipe 120 4 23 32 150 5 29 32 700 27 9 16 120 4 23 32 ID 6 35 1 4 ID 9 52 3 8 ID 9 52 3 8 ID 6 35 1 4 ID 9 52 3 8 ID 12 7 1 2 Models Pipe 10 branch ARB...

Page 29: ...set button on Master unit PCB SW01C Ɨ Confirm Automatic Addressing SW02C ȭ backward SW04C X cancel DIP SW01 7 Segment SW01D reset SW03C ȯ forward SW01C Ɨ Confirm Automatic Addressing SW02C ȭ backward SW04C X cancel DIP SW01 7 Segment SW01D reset SW03C ȯ forward Ensure that the branch pipes are attached vertically Slave Master Header Slave Master Slave Master Slave Master Vertical Distribution The ...

Page 30: ...um break and its drying Finally check if the vacuum gauge does not rise or not after maintaining the system in vacuum for 1 hr When inserting nitrogen gas of high pressure it must be used with regulator WARNING Use a vacuum pump or Inert nitrogen gas when doing leakage test or air purge Do not compress air or Oxygen and do not use Flammable gases Otherwise it may cause fire or explosion There is t...

Page 31: ...g Indoor Vinyl tape Floor exposed Water proof hemp cloth Bronze asphalt Outdoor Water proof hemp cloth Zinc plate Oily paint NOTE When using polyethylene cover as covering material asphalt roofing shall not be required Thermal insulation of refrigerant piping Bad example Do not insulate gas or low pressure pipe and liquid or highpressure pipe together Be sure to fully insulate connecting portion Ⓐ...

Page 32: ...re shielded cables or 2 core unshielded wires Multi Core Cable Master Slave1 Slave2 Master Slave1 Slave2 Remote control Indoor Unit Remote control Indoor Unit Remote control Indoor Unit Remote control Indoor Unit Master Slave Master Slave Remote control Indoor Unit Remote control Indoor Unit Remote control Indoor Unit Remote control Indoor Unit Precautions when laying power wiring Use round pressu...

Page 33: ...nication and Power Cables Communication cable Types shielded wires or unshielded wires Cross section 1 0 1 5 mm2 1 55 10 3 2 32 10 3 in2 Maximum allowable temperature 60 C 140 F Maximum allowable cable length under 1 000 m 3 281 ft Remote control cable Types 3 core cables Central control cable Product type Cable type Diameter ACP AC Manager 2 core cable Shielding cable 1 0 1 5 mm2 1 55 10 3 2 32 1...

Page 34: ...CB ELCB Pull box Installer option Pull box Installer option Pull box Installer option Power Line 2 Wires Cable HR unit ELCB L L1 N L2 R L1 S L2 T L3 R L1 S L2 T L3 HR unit 3 A 4 B 3 A 4 B 3 A 4 B 3 A 4 B A B Master Outdoor Unit SODU B SODU A IDU B IDU A CEN B CEN A DRY1 DRY2 GND 12 V Between Indoor and Master Outdoor unit WARNING Indoor unit ground lines are required for preventing electrical shoc...

Page 35: ...nce with the applicable local and national codes ELCB and fuse breaker must install to the power line Switch Communication Line 2 Wires Cable Power Line 3 Wires Cable Communication Line 3 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Master Indoor Units Power supply 3 Phase 3 Wires 60 Hz 208 230 V Power supply 1 Phase 60 Hz 208 230 ...

Page 36: ...Line 2 Wires Cable HR unit ELCB L L1 N L2 R L1 S L2 T L3 R L1 S L2 T L3 Communication Line 2 Wires Cable Power Line 3 Wires Cable Communication Line 3 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Master Indoor Units Main Switch Slave Pull Box Installer option Pull Box Installer option Pull Box Installer opt...

Page 37: ... Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Power Line 2 Wires Cable Master Indoor Units Power supply 3 Phase 3 Wires 60 Hz 460 V 575 V Power supply 1 Phase 60 Hz 208 230 V Main Switch Slave1 Slave2 Switch Switch ELCB ELCB ELCB Pull box Installer option Pull box Installer option Pull box Installer option Power Line 2 Wires Cable HR unit ELCB L L1 N L2 R ...

Page 38: ...ing to DIP switch setting You can check the setting values of the Master outdoor unit from the 7 segment LED The DIP switch setting should 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 Main Board ARUM B D TE5 DIP switch 7 segment SW01C Automatic Ad...

Page 39: ...on and then push confirm button Turn off the DIP s w No 4 and Push reset button to restart the system If you turn on the DIP s w No 4 you can make sure HR or HP display later Slave Unit DIP switch setting ODU Setting Slave 1 Slave 2 DIP switch setting ODU Setting Heat Recovery System Factory Setting DIP switch setting ODU Setting Setting Heat pump system or Heat Recovery system Installer Setting A...

Page 40: ...03M SW04M SW01M SW03M SW04M Switch for manual valve addressing SW01M SW05M 1 valve housing 4 valve housing 7 SEG Setting For Heat Recovery Unit Refer Only Heat Recovery Installation Heat Recovery HR Unit Board 2 Series Branch 1 4 Bypass from left SC EEV ڸ ڹ ں ڻ ڼ ڽ ھ ڿ Branch 3 4 High Low from top Branch 1 2 High Low from top Branch 5 8 Bypass from left Branch 7 8 High Low from top Branch 5 6 High...

Page 41: ...h Connected 6 branch Connected 7 branch Connected 8 branch Connected PRHR063A 1 2 3 4 5 6 PRHR083A 1 2 3 4 5 6 7 8 1 branch Connected 2 branch Connected 3 branch Connected 4 branch Connected 5 branch Connected 6 branch Connected 7 branch Connected 8 branch Connected WARNING If you want to use a PRHR032A for 2 branches HR unit after closing the 3rd pipes set the DIP switch for 2 branches HR unit If...

Page 42: ...f 10 of valve address SW04M Increase in the last digit of valve address SW05M Manual addressing of zoning indoor units SW01M SW03M SW04M SW05M SW01M SW03M SW04M DIP S W and tact S W for manual valve addressing 1 Normal setting Non Zoning setting Set the address of the valve of the HR unit to the central control address of the connected indoor unit SW01M selection of the valve to address SW03M incr...

Page 43: ...5 88 5 8 I D 12 7 1 2 I D 12 7 1 2 70 2 3 4 I D 25 4 1 110 4 11 32 I D 19 05 3 4 I D 19 05 3 4 2 3 2 3 O D 15 88 5 8 444 17 15 32 421 16 9 16 96 3 25 32 I D 15 88 5 8 I D 22 2 7 8 I D 22 2 7 8 I D 22 2 7 8 O D 15 88 5 8 I D 19 05 3 4 I D 9 52 3 8 h Y branch pipe Unit mm inch SW01C Rotary S W for addressing HR unit Must be set to 0 when installing only one HR unit When installing multiple HR units ...

Page 44: ...B Slave 1 SW01C Slave 0 SW02B SW01C SW01B Slave 2 ex Manual pipe detection of Valve 5 with three zoning indoor units 6 without zoning unit NOTE Use the Zoning Control when install two or more indoor units at 1 branch of HR Unit The indoor units controlled by Zoning Control can be selected collectively as the cooling heating mode DIP switch 7 segment SW01C Automatic Addressing Setting Automatic Add...

Page 45: ...ndoor units are different If auto pipe detection process fails complete it with manual pipe detection see Manual pipe detection part If auto pipe detection process is completed normally manual pipe detection is not required If you want to do auto pipe detection again after auto pipe detection fails do after reset of outdoor unit by all means During 5 minutes after pipe detection is completed do no...

Page 46: ...utton Select the Id 6 function using ȯ ȭ Button StA Push the Ɨ button Select the Id 5 function using ȯ ȭ Button Ath or Atc Push the Ɨ button Outdoor temperature is over 15 C 59 F Select Ath if fails use Atc Outdoor temperature is below 15 C 59 F Select Atc if fails use Ath It is possible to be generated mode changing noise of heating and cooling which is normal There is no mode changing noise at n...

Page 47: ... Setup and Contents 1 Operation None Display None 2 Operation Turn DIP S W No 1 on to address valve 1 Display Existing value saved in EEPROM is displayed in 7 SEG 3 Operation Set the digit of 10 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...

Page 48: ...play the Master IDU No of the HR unit on 7segment Default display is 00 on 7segment 5 Press the black button The IDU No increase every 1 second in the zoning 6 Set the Master IDU Press the red button during 1 5 seconds stop twinkling Method of checking the pipe detection result at outdoor unit 1 Wait for 5 minutes after Pipe detection is completed 2 Turn on the No 10 14 16 DIP S W of SUB PCB at ma...

Page 49: ...SW04C X cancel DIP SW01 7 Segment SW01D reset SW03C ȯ forward SW01C Ɨ Confirm Automatic Addressing SW02C ȭ backward SW04C X cancel DIP SW01 7 Segment SW04D reset SW03C ȯ forward Optional Mode Selection Function Selection Option Selection Remarks Content Display Content Display Default Optional FDD Automatic Refrigerant Charging Cooling Refer FDD guidance Automatic Refrigerant Charging Heating Refr...

Page 50: ...cooling load Night low noise function setting method High Static Pressure Compensation mode Fn 2 This function secures the air flow rate of ODU in case static pressure has been applied like using duct at fan discharge of ODU Static pressure compensation mode setting method Function setting Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function usin...

Page 51: ...efrost Fn 6 Mode setting method Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn6 Push the button Select the Option using Button oFF op1 op3 Push the button Mode is set Setting the ODU address Fn 5 Mode setting method Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using...

Page 52: ...emoval Mode is set Mode Setting Setting Operation time Operating time Repeat cycle Detail of function op1 Stop 2 hours 5 minutes 2 hours After product stopped 2 hours fan operating 5 minutes Repeated every 2 hours op2 stop 5 minutes 3 minutes Twice in 2 hours After product stopped 5 minutes fan operating 3 minutes Limited to two times within 2 hours op3 stop 5 minutes 3 minutes 1 time After produc...

Page 53: ... set Setting Mode Detail of function oFF Not Setting oP1 Smooth Mode Slowly control a target pressure value oP2 Normal Mode Normal control a target pressure value oP3 Peak Mode Fast control a target pressure value Mode setting on using humidity sensor oFF not setting Using of humidity sensor When used cooling operation of SLC function it will improve energy effcience because evaporation temperatur...

Page 54: ...sh the button Select the Function using Button Fn23 Push the button Select the Option using Button oFF on Push the button Base pan Heater operation mode is set Base pan Heater operation Fn 23 Master unit PCB DIP switch on No 5 Select the mode using Button Func Push the button Select the Function using Button Fn21 Push the button Select the Function using Button Fn22 Push the button Overall Defrost...

Page 55: ...ing and Push the button Select the Function using Button Mode setting and Push the button Mode can be set 0 3 0 is no setting Setting of comfort cooling operation Mode setting Effect 0 No setting 1 Cooling capacity low Power consumption low 2 Cooling capacity mid Power consumption mid 3 Cooling capacity high Power consumption high Comfort Cooling operation Id 10 It is function to reduce the ODU en...

Page 56: ...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 number marked on EEPROM of Indoor unit is 0 or FFFFFF 1 0 Poor fan motor operation Disconnecting the fan motor connector Failure of indoor fan motor lock 1 1 Communication error Hydro Kit Indoor unit Inv PCB Failing to receive Inv PCB signal in indoor unit 1 ...

Page 57: ...ster Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor open or short 4 9 Master Outdoor Unit Faulty IPM Temperature Sensor Master Outdoor Unit IPM Temperature Sensor short open 5 0 Omitting connection of R S T power of Master Outdoor Unit Omitting connection of Master outdoor unit 5 1 Excessive capacity of indoor units Excessive connection of indoor units compared to capacity of Outdo...

Page 58: ...perature Sensor Error Outdoor Unit Subcooling Outlet Temperature Sensor Error 1 1 6 Outdoor Unit Oil Level Sensor Error Oil Level Sensor of Outdoor Unit is open or short 1 4 5 Outdoor unit Main Board External Board communication Error Outdoor unit Main Board External Board communication Error 1 5 0 Outdoor Unit Discharge Superheat not satisfied Outdoor Unit Compressor Discharge Superheat not satis...

Page 59: ...or unit Smallest room Countermeasure 2 Gas leak alarm Mechanical ventilator Countermeasure 1 Opening effective to ventilation Indoor unit Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air INSTALLATION GUIDE AT THE SEASIDE Periodic 1 times per 6 months cleaning of the dust or salt particles stuck on the heat exchanger Is nec...

Page 60: ...formation Serial number is refer to the bar code on the product Product Sales Name Model Factory Name ARUx yTE5 series x N Heat Pump V Cooling Only M Heat Recovery Heat Pump y B 208 230 V D 460 V C 575 V Numeric Cooling capacity Product information Model Designation ...

Page 61: ...ase call the installing contractor of your product as warranty service will be provided by them CANADA Service call Number 888 LG Canada 888 542 2623 Numéro pour les appels de service LG Canada 1 888 542 2623 ...

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