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Multi V Ducted Indoor Units

Due to our policy of continuous product innovation, some specifications may change without notification.

Unit

Model Numbers

High-Static Ducted BG/BR/B8

ARNU073BGA4

ARNU283BRA4

ARNU363B8A4

ARNU073BHA4

ARNU093BGA4

ARNU363BRA4

ARNU423B8A4

ARNU093BHA4

ARNU123BGA4

ARNU423BRA4

ARNU483B8A4

ARNU123BHA4

ARNU153BGA4

ARNU483BRA4

ARNU763B8A4

ARNU153BHA4

ARNU183BGA4

ARNU543BRA4

ARNU963B8A4

ARNU183BHA4

ARNU243BGA4

ARNU243BHA4

ARNU283BGA4
ARNU363BGA4
ARNU423BGA4

Built-In Ducted B3/B4

(shown with optional canvas boot and grill)

ARNU073B3G4

ARNU093B3G4

ARNU123B3G4

ARNU153B3G4

ARNU183B4G4

ARNU243B4G4

Low-Static Ducted L1/L2/L3

ARNU073L1G4
ARNU093L1G4
ARNU123L2G4
ARNU153L2G4
ARNU183L2G4
ARNU243L3G4

Vertical Air Handler

ARNU123NJA4

ARNU183NJA4

ARNU243NJA4

ARNU303NJA4

ARNU633NJA4

ARNU423NKA4

ARNU483NKA4

ARNU543NKA4

Table 1: Multi V Ducted Indoor Units

INTRODUCTION

Содержание ARNU073 B3G4

Страница 1: ...ARNU423B8A4 ARNU483B8A4 ARNU763B8A4 ARNU963B8A4 ARNU073BHA4 ARNU093BHA4 ARNU123BHA4 ARNU153BHA4 ARNU183BHA4 ARNU243BHA4 Built In Ducted Indoor Units ARNU073B3G4 ARNU093B3G4 ARNU123B3G4 ARNU153B3G4 ARNU183B4G4 ARNU243B4G4 Vertical Air Handler Indoor Units ARNU123NJA4 ARNU183NJA4 ARNU243NJA4 ARNU303NJA4 ARNU363NJA4 ARNU423NKA4 ARNU483NKA4 ARNU543NKA4 Low Static Ducted Indoor Units ARNU073L1G4 ARNU09...

Страница 2: ...tallation For more technical materials such as submittals engineering databooks and catalogs visit www lghvac com For continual product development LG Electronics U S A Inc reserves the right to change specifications without notice LG Electronics U S A Inc This document as well as all reports illustrations data information and other materials are the property of LG Electronics U S A Inc PROPRIETAR...

Страница 3: ...d BG Chassis 26 Dimensions High Static Ducted BR Chassis 27 Dimensions High Static Ducted B8 Chassis 28 Dimensions Built In Low Static Ducted B3 B4 Chassis 29 Dimensions Low Static Ducted L1 L2 L3 Chassis 30 Dimensions Vertical Air Handler NJ Chassis 31 Dimensions Vertical Air Handler NK Chassis 32 Refrigerant Piping Diagrams 33 General Installation Guidelines 34 Installation 35 Install Ducted IDU...

Страница 4: ... There is risk of physical injury or death Wear protective gloves when handling equipment Sharp edges may cause personal injury Dispose of the packing materials safely Packing materials such as nails and other metal or wooden parts may cause puncture wounds or other injuries Tear apart and throw away plastic packaging bags so that children may not play with them and risk suffocation and death Do n...

Страница 5: ... of art wine coolers or other precision air conditioning applications This equipment is designed to provide comfort cooling and heating There is risk of property damage Do not make refrigerant substitutions Use R410A only If a different refrigerant is used or air mixes with original refrigerant the unit will malfunction and become damaged Do not install the unit in a noise sensitive area When conn...

Страница 6: ...o carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury or death Ensure the unit is connected to a dedicated power source that provides adequate power If the power source capacity is inadequate or the electric work is not per formed properly it may result in fire electric shock physical injury or death Refer to local state and...

Страница 7: ...he base collapses the unit could fall and cause property damage or product failure Do not allow water dirt or animals to enter the unit There is risk of unit failure WARNING Do not allow water dirt or animals to enter the unit There is risk of unit failure fire electric shock physical injury or death Avoid excessive cooling and periodically perform ventilation to the unit Inadequate ventilation is...

Страница 8: ...ndoor Units Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ...

Страница 9: ...red construction mechanical electrical and or other disciplines Applicable Codes Personnel must be familiar with and follow the applicable national state and or local codes Pipes vapor line and liquid line with insulation 3 8 or 1 2 nuts flat washers and lock split washers 3 8 or 1 2 threaded hanger rods Insulated drain hose Additional drain hose Connecting cable power and control Level Screwdrive...

Страница 10: ...4 ARNU423BRA4 ARNU483B8A4 ARNU123BHA4 ARNU153BGA4 ARNU483BRA4 ARNU763B8A4 ARNU153BHA4 ARNU183BGA4 ARNU543BRA4 ARNU963B8A4 ARNU183BHA4 ARNU243BGA4 ARNU243BHA4 ARNU283BGA4 ARNU363BGA4 ARNU423BGA4 Built In Ducted B3 B4 shown with optional canvas boot and grill ARNU073B3G4 ARNU093B3G4 ARNU123B3G4 ARNU153B3G4 ARNU183B4G4 ARNU243B4G4 Low Static Ducted L1 L2 L3 ARNU073L1G4 ARNU093L1G4 ARNU123L2G4 ARNU153...

Страница 11: ...3 Built In Ducted B4 Built In Ducted BH Built In Ducted L1 Low Static Ducted L2 Low Static Ducted L3 Low Static Ducted NJ Vertical Air Handler NK Vertical Air Handler Electrical Ratings 3 208 230V 60Hz 1Phase Nominal Capacity Nominal cooling capacity in Btu h Type U Inverter Heat Pump Heat Recovery Family ARN Multi V Indoor Unit Refrigerant R410A 4 Feature C Plasma Filter A No Plasma Filter G Low ...

Страница 12: ...epletion potential ODP is 0 WARNING Do not place the refrigerant cylinder in direct sunlight Refrigerant cylinder may explode causing severe injury or death Note Because R410A is a combination of R32 and R125 the required additional refrigerant must 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...

Страница 13: ... bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Table 2 High Static Ducted BH Chassis IDU Specifications Model No ARNU073BHA4 ARNU093BHA4 ARNU123BHA4 ARNU153BHA4 ARNU183BHA4 ARNU243BHA4 Cooling Mode Performance Capacity Btu h 7 500 9 600 12 300 15 400 19 100 24 200 Power Input1 W 150 150 150 150 150 150 Heating Mode Performance Capacity Btu h 8 500 10 900 13 600 17...

Страница 14: ... bulb WB and outdoor ambient conditions of 95ºF dry bulb DB Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Specifications High Static BG Chassis Model No ARNU073BGA4 ARNU093BGA4 ARNU123BGA4 ARNU153BGA4 ARNU183BGA4 Cooling Mode Performance Capacity Btu h 7 500 9 600 12 300 15 400 19 100 P...

Страница 15: ...r entering the indoor coil at 80ºF dry bulb DB and 67ºF wet bulb WB and outdoor ambient conditions of 95ºF dry bulb DB Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Specifications High Static BG Chassis Model No ARNU243BGA4 ARNU283BGA4 ARNU363BGA4 ARNU423BGA4 Cooling Mode Performance Ca...

Страница 16: ...ating obtained with air entering the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Specifications High Static BR B8 Chassis Table 4 High Static BR Chassis IDU Specifications Model No ARNU283BRA4 ARNU363BRA4 ARNU5423BRA4 ARNU483BRA4 ARNU543BRA4 Cooling Mode Performance Capacity Btu h 28 000 36 200 42 000 48 100 54 000 Power Input1 W 450 450 ...

Страница 17: ... 0 35 0 35 0 35 0 59 0 59 External Static Pressure in wg High Mode Factory Set 0 70 0 70 0 70 0 87 0 87 Piping Liquid Line in O D 3 8 Flare 3 8 Flare 3 8 Flare 3 8 Flare 3 8 Flare Vapor Line in O D 3 4 Brazed 3 4 Brazed 3 4 Brazed 3 4 Flare 7 8 Flare Condensate Line in I D 1 1 1 1 1 1 Power Input is rated at high speed 2 Take appropriate actions at the end of HVAC equipment life to recover recycle...

Страница 18: ... the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Specifications Low Static B3 B4 Chassis Table 6 Low Static Built In B3 B4 Chassis IDU Specifications Model No ARNU073B3G4 ARNU093B3G4 ARNU123B3G4 ARNU153B3G4 ARNU183B4G4 ARNU243B4G4 Cooling Mode Performance Capacity Btu h 7 500 9 600 12 300 15 400 19 100 24 200 Power Input1 W 85 85 85 85 85...

Страница 19: ... 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Table 7 Low Static Ducted L1 L2 L3 Chassis IDU Specifications GENERAL DATA Specifications Low Static Ducted L1 L2 L3 Chassis Model No ARNU073L1G4 ARNU093L1G4 ARNU123L2G4 ARNU153L2G4 ARNU183L2G4 ARNU243L3G4 Cooling Mode Performance Capacity Btu h 7 500 9 600 12 300 15 400 19 100 24 000 Power Input1 W 40 40 85 ...

Страница 20: ...eating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Table 8 Vertical Air Handler NJ Chassis IDU Specifications Model No ARNU123NJA4 ARNU183NJA4 ARNU243NJA4 ARNU303NJA4 ARNU363NJA4 Cooling Mode Performance Capacity Btu h 12 000 18 000 24 000 30 000 36 000 Power Input1 W 80 80 120 178 228 Heatin...

Страница 21: ...95 105 Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb DB and 67ºF wet bulb WB and outdoor ambient conditions of 95ºF dry bulb DB Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb DB and outdoor ambient conditions of 47ºF dry bulb DB and 43ºF wet bulb WB Table 9 Vertical Air Handler NK Chassis IDU Specifications Model No ARNU423...

Страница 22: ...GA4 187 253 3 3 15 2 65 60 208 230 1 450 450 ARNU093BGA4 3 3 2 65 450 450 ARNU123BGA4 3 3 2 65 450 450 ARNU153BGA4 3 3 2 65 450 450 ARNU183BGA4 3 3 2 65 450 450 ARNU243BGA4 3 3 2 65 450 450 ARNU283BGA4 3 3 2 65 450 450 ARNU363BGA4 3 3 2 65 450 450 ARNU423BGA4 3 3 2 65 450 450 BR Units ARNU283BRA4 187 253 4 4 15 3 5 60 208 230 1 450 450 ARNU363BRA4 4 4 3 5 450 450 ARNU423BRA4 4 4 3 5 450 450 ARNU48...

Страница 23: ... Rated Amps A Power Supply Power Input W Hz Volts Phase Cooling Heating B3 Units ARNU073B3G4 187 253 1 0 15 0 76 60 208 230 1 85 85 ARNU093B3G4 1 0 0 76 85 85 ARNU123B3G4 1 0 0 76 85 85 ARNU153B3G4 1 0 0 76 85 85 B4 Units ARNU183B4G4 187 253 1 2 15 0 97 60 208 230 1 115 115 ARNU243B4G4 1 2 0 97 115 115 MCA Minimum Circuit Ampacity MOP Maximum Overcurrent Protection Units are suitable for use on an...

Страница 24: ... Overcurrent Protection Units are suitable for use on an electrical system where voltage supplied to unit terminals is within the listed range limits Select wire size based on the larger MCA value Instead of fuse use circuit breaker Table 13 Vertical Air Handler NJ NK Chassis Electrical Data Model Voltage Range MCA MOP Rated Amps A Power Supply Power Input W Hz Volts Phase Cooling Heating NJ Units...

Страница 25: ...ifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions High Static Ducted BH Chassis Center of Gravity Note All dimensions have a tolerance of 0 25 in Center of gravity ...

Страница 26: ...icy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions High Static Ducted BG Chassis ...

Страница 27: ...of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions High Static Ducted BR Chassis ...

Страница 28: ...icy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Dimensions High Static Ducted B8 Chassis ...

Страница 29: ... 24 5 16 15 1 4 7 1 2 19 11 16 Max 22 5 8 15 1 8 7 1 2 2 1 2 2 3 8 10 7 8 8 1 2 Supply Air Return Air Power Connection Liquid Drain Vapor With Suction Grill Suction Canvas With Suction Grill 1 Unit inches Note All measurements have a tolerance of 1 4 in Accessory PBSGB30 35 13 16 PBSGB40 46 13 16 14 1 8 A2 B2 C2 2 3 16 14 1 8 2 3 16 PBSC30 32 5 16 PBSC40 Accessory A3 B3 C3 1 9 16 to 9 13 16 10 11 ...

Страница 30: ...073L1G4 ARNU093L1G4 ARNU123L2G4 ARNU153L2G4 ARNU183L2G4 ARNU243L3G4 27 9 16 28 7 8 26 38 3 8 35 7 16 36 3 4 33 7 8 46 1 4 43 5 16 44 5 8 41 3 4 Liquid Pipe Connection Air Outlet Air Inlet 11 1 2 2 5 8 4 1 16 7 1 2 L1 14 7 16 L2 22 1 16 L3 29 3 4 3 15 16 3 1 16 27 9 16 7 1 2 13 16 6 1 16 24 3 4 8 11 16 B A C L1 2 15 16 L2 3 1 16 L3 3 3 16 Drain Pipe Connection Vapor Pipe Connection Power Supply Con...

Страница 31: ...NJ Chassis 48 11 16 18 21 1 4 48 11 16 49 5 16 2 9 16 1 15 16 21 1 4 12 1 8 1 1 2 9 15 16 2 1 16 18 17 2 1 8 13 4 11 16 1 9 16 1 9 16 1 9 16 1 15 16 1 5 8 14 5 16 Unit inches Note All measurements have a tolerance of 1 4 in Drain connection for upflow application Drain connection for horizontal application Liquid pipe Vapor pipe 7 8 Wiring knockouts 7 8 Wiring knockouts 1 11 16 Wiring knockouts Su...

Страница 32: ...rtical Air Handler NK Chassis 55 3 16 25 21 1 4 55 3 16 55 13 16 2 9 16 21 1 4 12 1 8 1 1 2 16 15 16 2 1 16 25 24 2 3 16 20 4 11 16 1 9 16 1 9 16 1 9 16 1 15 16 1 5 8 14 1 4 Unit inches Note All measurements have a tolerance of 1 4 in Supply Air opening 7 8 Wiring knockouts SIDE VIEW 7 8 Wiring knockouts 1 11 16 Wiring knockouts Return Air opening FRONT VIEW Liquid pipe Vapor pipe Drain connection...

Страница 33: ... High Static Ducted B8 Refrigerant Piping Diagram Cooling Heating Th1 Thermistor Return Air Th2 Thermistor Pipe In Th3 Thermistor Pipe Out EEV Electronic Expansion Valve Heat Exchanger Sirocco Fan Th3 Th2 EEV Filter Filter Th1 lndoor Unit Refrigerant Pipes to Outdoor Unit Flare Nut Liquid Line Vapor Line Flare Nut Heat Exchanger Sirocco Fan TH3 TH1 TH2 lndoor unit EEV Filter Check Valve Solenoid V...

Страница 34: ...t disturb occupants Include enough space for service access Include space for drainage to ensure condensate flows properly out of the unit when it is in cooling mode Use a level indicator to ensure the unit is installed on a level plane Include space for drainage to ensure condensate flows properly out of the unit when it is in cooling mode Note The unit may be damaged may malfunctioin and or will...

Страница 35: ...ommunications problems between the zone con troller and the indoor unit DO NOT cut the quick connect plugs off or adjust the length of the cable Keep the communications cable away from high voltage wires and electromagnetic field EMF producing equipment Do not route power wiring and communications cables in the same conduit Maintain the minimum distance required between the communications cable an...

Страница 36: ... Major Dimensions in 1 Mounting Dimensions in W D H L6 M1 M2 M3 M4 High Static Ducted Indoor Units BH 59 34 3 4 17 3 4 10 1 4 4 1 4 36 11 16 14 1 1 7 8 BG 84 46 1 2 17 3 4 11 3 4 4 1 4 48 1 2 14 1 1 BR 112 48 1 2 23 5 16 15 4 7 16 50 1 2 18 3 4 1 1 B8 192 61 5 8 27 1 8 18 1 8 4 11 16 63 7 8 22 7 8 1 3 16 1 3 16 Low Static Ducted Indoor Units L1 39 30 1 2 27 9 16 7 1 2 3 28 7 8 24 3 4 5 8 1 3 8 L2 ...

Страница 37: ...16 55 2 1 1 8 Low Static Ducted Indoor Units L1 Flange 5 7 8 26 13 16 5 8 Rear 6 1 8 26 3 4 No Flange Bottom 6 1 16 26 3 4 No Flange L2 Flange 5 7 8 33 13 16 13 16 5 8 Rear 6 1 8 33 11 16 3 4 No Flange Bottom 6 1 16 33 13 16 3 4 No Flange L3 Flange 5 7 8 41 3 4 13 16 5 8 Rear 6 1 8 41 11 16 3 4 No Flange Bottom 6 1 16 41 11 16 3 4 No Flange Low Static Built In Ducted Indoor Units B3 Flange 6 7 16 ...

Страница 38: ... Bottom 46 25 8 Low Static Built In Ducted Indoor Units B3 Left End 10 12 8 Bottom 34 23 8 B4 Left End 10 12 8 Bottom 44 23 8 Table 16 Minimum Maintenance Clearances in C2 C1 C3 A3 A1 A2 C3 C1 C2 A1 A3 A2 Figure 15 High Static Ducted BG BR B8 BH Indoor Unit Maintenance Clearances Figure 16 Low Static Ducted L1 L2 L3 Indoor Unit Maintenance Clearances Figure 17 Low Static Built In Ducted B3 B4 Indo...

Страница 39: ... 3 15 16 1 2 45 Flare 3 15 16 3 1 4 1 0 Plain 6 9 16 6 3 4 1 0 14 MPT 1 1 8 6 9 16 24 BH 1 4 45 Flare 1 7 8 3 15 16 5 8 45 Flare 3 15 16 3 1 4 1 0 Plain 6 9 16 6 3 4 1 0 14 MPT 1 1 8 6 9 16 07 42 BG 3 8 45 Flare 1 7 8 3 15 16 5 8 45 Flare 3 15 16 3 5 16 1 0 Plain 6 9 16 6 3 4 1 0 14 MPT 6 9 16 1 1 8 28 54 BR 3 8 45 Flare 2 13 16 3 15 16 5 8 45 Flare 4 13 16 3 1 4 1 0 Plain 8 3 4 6 3 4 1 0 14 MPT 8...

Страница 40: ...ow necessary duct connections and maintenance access Measure the distance between the indoor unit and the outdoor unit Cut the pipes a little longer than measured distance 2A Remove the burrs Completely remove all burrs from pipe ends When removing burrs point the end of the copper pipe down to avoid introducing foreign materials into the pipe 2B Slide the flare nut onto the copper tube 3 Flare th...

Страница 41: ...occur Possible Problems Significant hydrolysis of refrigerant oil Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs capillary tubes are clogged Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs and capillary tubes become clogged Refrigerant gas leaks shortages Refrigerant oil degradation Poor insula...

Страница 42: ...tion Auxiliary Valve Tape no air bubbles Do not block outlet side When pressure inside pipe is above atmospheric pressure pinhole leaks can occur Refrigerant Pipe Welding Point Regulator Nitrogen gas 3 0 psi or less Nitrogen Gas Tank Brazing Note It is imperative to keep the piping system free of contaminants and debris such as copper burrs slag or carbon dust during installation 1 All joints are ...

Страница 43: ...ng traditional POE refrig eration oil as a lubricant Failure to follow this procedure may lead to restrictions in the refrigeration components Do not over tighten flare nuts Excessive tightening will cause fittings to crack Insulate Refrigerant Pipes Sufficiently insulate all cold surfaces to prevent moisture forming All pipes must be insulated and each pipe must be separately wrapped Refer to Fig...

Страница 44: ...densate drain connection just below the condensate pump pipe connection on the control panel end of the unit This connection may be used instead of using the condensate pump Verify the unit is installed with a slight cant toward the gravity drain connection Remove the rubber plug before connecting the condensate line to the indoor unit The gravity condensate line must be equipped with a conden sat...

Страница 45: ... sufficient Refer to the U Trap Specifications figure for the recommended condensate trap Supplementary drain with proper trap Field supplied kit can be used Drain for Horizontal Left Installations Figure 29 Vertical Horizontal Air Handler Unit U Trap Specifications U Trap B C A 2 9 16 inch B 2C C 2 x SP SP External Pressure in WG Ex External Pressure 0 4 in WG A 2 9 16 inches B 1 7 12 inches C 13...

Страница 46: ...acity and rating Wires that are too small may generate heat and cause a fire resulting in physical injury or death Secure all field wiring connections with appropriate wire strain relief Improperly securing wires will create undue stress on equipment power lugs Inadequate connections may generate heat cause a fire and physical injury or death Properly tighten all power connections Loose wiring may...

Страница 47: ...efer to the wiring connection diagrams for the appropriate unit Figure 34 through Figure 40 Connect the communications cables to the A 3 A and B 4 B terminals at indoor units and or heat recovery units Maintain polarity throughout the communications bus Be sure A 3 A terminals are connected to A 3 A terminals and B 4 B terminals are connected to B 4 B terminals Ground the shield of the communicati...

Страница 48: ...onnel Figure 34 Location of Power Wiring and Communications Cable Terminals in the High Static and Low Static Ducted Indoor Units Lock nut Conduit mounting plate Conduit L L1 N L2 A B Power Supply High Voltage 208 230V Communications BG BR B8 Frame Terminals Indoor Unit Terminal Block L L1 N L2 A A B B GND 12V DRY2 DRY1 INTERNET IDU SODU Outdoor Unit Terminal Block Power Input 208 230V 60 Hz 1 Pha...

Страница 49: ...igure 40 Terminal Block in the Vertical Horizontal Air Handler Units 3 A 4 B Indoor Unit Terminal Block Power Input 208 230V 60 Hz 1 Phase Ground L L1 N L2 A A B B GND 12V DRY2 DRY1 INTERNET IDU SODU Outdoor Unit Terminal Block Figure 37 Location of Power Wiring and Communications Cable Terminals in the Built In Ducted Indoor Unit Lock nut Conduit Power Supply High Voltage 208 230V Communications ...

Страница 50: ...er If the power source capacity is inadequate or the electric work is not performed properly it may result in fire electric shock physical injury or death Refer to local state and federal codes and use power wires of sufficient current capacity and rating Wires that are too small may generate heat and cause a fire Secure all field wiring connections with appropriate wire strain relief Improperly s...

Страница 51: ...conduit if used and into the control box Be sure to keep a minimum of two 2 inches of spacing between the power wiring and the communications wiring 9 Secure power wiring to the inside surface of the control box using a field provided nylon wire clamp 10 If needed secure the power wiring in appropriate locations outside the indoor unit to prevent damage to the wire or injury to maintenance personn...

Страница 52: ...els 1A 2A Must be OFF factory default Does NOT include Gen 4 features System will not operate if DIP Switch No 3 is ON and an error code will be generated Gen 4 Any combination of Gen 2 and Gen 4 Model 2A ONLY Must be OFF factory default Gen 4 Any combination of Gen 2 and Gen 4 Any combination of Models 1A 2A Must be OFF factory default Gen 2 Any combination of Gen 2 and Gen 4 Any combination of M...

Страница 53: ...ct innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING High Static Ducted BH Chassis Figure 42 High Static Ducted BH Chassis Wiring Diagram ...

Страница 54: ... Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units For Gen 4 Multi V ducted indoor units DIP Switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features outdoor unit DIP Switch No 3 must be set to ON Please refer to the Multi V IV Multi V Wa ter IV Multi V S Engineering Manual for...

Страница 55: ...S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING High Static Ducted BG Chassis Figure 43 High Static Ducted BG Chassis Wiring Diagram Optional Connections Figure 43 shows the control board for the BG chassis Connect optional equipment to the control board as required for your system BG MEZ61897818 ...

Страница 56: ...n pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 23 High Static Ducted BG Chassis Wiring Diagram High Static Ducted BG Chassis WIRING Table 24 BG Chassis DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP Switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features ou...

Страница 57: ...S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING High Static Ducted BR Chassis Figure 44 High Static Ducted BR Chassis Wiring Diagram Optional Connections Figure 44 shows the control board for the BR chassis Connect optional equipment to the control board as required for your system BR MEZ66590610 ...

Страница 58: ...ROOM Room sensor Room air thermistor CN REMO Wired remote controller Wired remote control connection CN D PUMP Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 26 BR Chassis DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP Switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable ...

Страница 59: ...S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING High Static Ducted B8 Chassis Figure 45 High Static Ducted B8 Chassis Wiring Diagram Optional Connections Figure 45 shows the control board for the B8 chassis Connect optional equipment to the control board as required for your system B8 MEZ66590612 ...

Страница 60: ... ROOM Room sensor Room air thermistor CN REMO Wired remote controller Wired remote control connection CN D PUMP Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 28 B8 Unit DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP Switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Ge...

Страница 61: ... S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING Low Static Ducted L1 Chassis Figure 46 Low Static Ducted L1 Chassis Wiring Diagram Optional Connections Figure 46 shows the control board for the L1 chassis Connect optional equipment to the control board as required for your system L1 MEZ66590602 ...

Страница 62: ...te controller Wired remote control connection CN D PUMP Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 30 L1 Unit DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features outdoor unit DIP Switch No 3 must be...

Страница 63: ...Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING Low Static Ducted L2 L3 Chassis Figure 47 Low Static Ducted L2 L3 Chassis Wiring Diagram Optional Connections Figure 47 shows the control board for the L2 L3 chassis Connect optional equipment to the control board as required for your system L2L3 MEZ66590604 ...

Страница 64: ...mistor CN REMO Wired remote controller Wired remote control connection CN D PUMP Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 32 L2 L3 Unit DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features outdoor ...

Страница 65: ...nc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING Low Static Built In B3 B4 Chassis Figure 48 Low Static Built In B3 B4 Chassis Wiring Diagram Optional Connections Figure 48 shows the control board for the L1 chassis Connect optional equipment to the control board as required for your system B3B4 MEZ51186311 ...

Страница 66: ...oller Wired remote control connection CN ROOM Room sensor Room air thermistor CN D PUMP Drain pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units Table 34 B3 B4 Unit DIP Switch Settings For Gen 4 Multi V ducted indoor units DIP switches 1 2 6 through 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features o...

Страница 67: ...A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING Vertical Air Handler NJ Chassis Figure 49 Vertical Air Handler NJ Chassis Wiring Diagram Optional Connections Figure 49 shows the control board for the NJ chassis Connect optional equipment to the control board as required for your system NJ MEZ62689314 ...

Страница 68: ...pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units For Gen 4 Multi V vertical air handler indoor units DIP switches 1 2 7 and 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features outdoor unit DIP Switch No 3 must be set to ON Please refer to the Multi V IV Multi V Wa ter IV Multi V S Engineering Manual ...

Страница 69: ...A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp WIRING Vertical Air Handler NK Chassis Figure 50 Vertical Air Handler NK Chassis Wiring Diagram Optional Connections Figure 49 shows the control board for the NK chassis Connect optional equipment to the control board as required for your system NK MEZ62689315 ...

Страница 70: ...pump output AC output for drain pump CN 485 Communication Connection between indoor and outdoor units For Gen 4 Multi V vertical air handler indoor units DIP switches 1 2 7 and 8 must be set to OFF These DIP switches are used for other models To enable Generation 4 features outdoor unit DIP Switch No 3 must be set to ON Please refer to the Multi V IV Multi V Wa ter IV Multi V S Engineering Manual ...

Страница 71: ...all Mounted Controller Installation Since the room temperature sensor is inside the remote controller the remote controller should be installed in a place away from direct sun light high humidity and direct supply of hot or cold air to maintain proper space temperature Install the remote controller about 5 ft above the floor in an area with good air circulation and an average temperature Do not in...

Страница 72: ...On Switch Function name Off On Remarks 3 Group Control Master Slave Group control setting using 7 Day Programmable Controller selects Master Slave on each indoor unit 4 Dry Contact Mode Variable Auto Sets operation mode for optional Dry Contact accessory 1 Variable Auto or Manual Mode can be set through 7 Day Programmable Controller or Wireless Remote Controller factory default setting is Auto if ...

Страница 73: ...between slave indoor units Do not connect 12V line between slave indoor units Master Master GND Signal 12V AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System Dry Contact Optional Figure 54 Group Control Method 2 Group Control Figure 53 Figure 54 and Figure 55 show examples of typical control configurations Figure 53 shows one wired remote controller c...

Страница 74: ...ge Display Error Message AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System Connect Signal and GND lines to slave indoor units Do not connect 12V line to slave indoor units GND Signal 12V Dry Contact Optional Figure 55 Group Control Method 3 FAU FAU Standard Standard FAU Fresh Air Intake Unit Standard Standard Indoor Unit ZC Zone Controller Standard S...

Страница 75: ...ffs NJ All rights reserved LG is a registered trademark of LG Corp CONTROLS SETUP Remote Sensor Display Error Message Master Master AC Smart ACP Bacnet ACP LON Optional Other Building Mgmt System Optional LGMV LGAP Network System GND Signal 12V Dry Contact Optional Figure 57 Remote Control Remote Control Figure 57 shows an example of a remote control configuration ...

Страница 76: ...tened Refrigerant pipe is properly supported to keep lateral pressure off unit connections Refrigerant shutoff valves are full port design with integral Schrader port rated for R410A option Shutoff valves have the same internal pipe diameter as the connected pipe option Two shutoff valves were installed one 1 high pressure liquid one 1 low pressure vapor option Shutoff valves installed with Schrad...

Страница 77: ...ting equipment Outdoor unit Indoor unit communications cable terminals 3 A and 4 B Field provided communications cable is 18 2 stranded and shielded All terminations are made at the terminal block No inline splices or wire caps are present Communications cable is plenum rated Communications cable shield is tied back and is grounded at only ONE end Wall Mounted Zone Controller Communications N A No...

Страница 78: ...Indoor Units Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ...

Страница 79: ...f LG Corp Who to call for assistance Freight Damage and Unit Replacements Your LG Manufacturer Representative Missing Parts Your LG Manufacturer Representative Freight Damage and Unit Replacements Your LG Manufacturer Representative Received Wrong Indoor Unit Model Your LG Manufacturer Representative Installation Startup and Commissioning Technical Assistance 1 888 865 3026 For warranty informatio...

Страница 80: ...onics Commercial Air Conditioning Division 11405 Old Roswell Road Alpharetta Georgia 30009 www lghvac com LG Customer Information Center Commercial Products 1 888 865 3026 USA Follow the prompts for commercial A C products and parts 20001747 ISO 9001 2008 LG ELECTRONICS INC ...

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