MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
Installing Outdoor Units Indoors LG Multi F / Multi F MAX outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors: •...
LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. To reduce the risk of designing an improper applied system or one that will not operate correctly, LG prefers that LATS software be used on all projects.
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LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
Always follow local codes when selecting and installing copper pipe and piping system components. Approved piping for use with LG HVAC products will be marked “R410 RATED” along the length of the pipe. Piping wall thickness must meet local code requirements and be approved for a maximum operating pressure of 551 psi. When bending piping, try to keep the number of bends to a minimum, and use the largest radii possible to reduce the equivalent length of installed piping;...
Failure to do so will cause significant performance degradation. Proper leak checks must be performed. Using isolation valves does not automatically void any LG product warranty, however, a limited warranty will be voided in whole or part must any field supplied accessory fail in any way that causes product failure.
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Pipe Sleeves at Penetrations LG recommends that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and promote free movement of the pipe within the sleeve.
MULTI Flaring and Brazing Procedures One of the main causes of refrigerant leaks is a defective connection. For LG HVAC systems, the installer needs to know how perform both flared and brazed connections successfully. • During installation, it is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust.
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Figure 92: PI-485 Board (Ap- pearance will differ depending on PI-485 V-net Control Integration Board for Outdoor Units adapt Multi F / Multi F MAX systems to a LG model). VRF system central protocol for integration with LG central controllers. The PI-485 is installed in the Multi F / Multi F MAX outdoor unit.
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ELECTRICAL From Indoor Units to Remote Controllers • Communication cable from indoor unit to remote controller(s) is to be LG supplied or field supplied 22 AWG, 3-conductor, twisted, stranded, unshielded. Wiring must comply with all applicable local and national codes.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. IM_MultiF_ODU_04_20 Air Conditioning Technologies Supersedes: IM_MultiF_ODU_03_17 4300 North Point Parkway IM_MultiF_ODU_11_16 Alpharetta, Georgia 30022 IM_MultiF_ODU_4_16 www.lghvac.com IM_MultiF_ODU_11_15...
MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
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Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
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3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
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PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
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LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
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Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.
TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
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IMPORTANT SAFETY INSTRUCTIONS • Make sure that a sekparate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire. •...
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TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION PARTS INSTALLATION Ceiling dimension and hanging bolt location Indoor Unit Installation Air Filter Checking the Drainage Indoor Unit Drain Piping Combination indoor units Flaring work Connection of piping - Indoor, Outdoor, BD Unit Plumbing materials and storage methods Indoor Unit Drain Piping Drain test...
INSTALLATION PARTS INSTALLATION PARTS Air inlet vents Air outlet vents Air outlet vents Air filters Air intake vents Remote Controller (Accessory) Control box Air outlet vents Air filters Air intake vents Washer for Clamp Insulation for Name Drain hose Clamp metal hanging bracket (Tie Wrap) fitting...
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INSTALLATION INSTALLATION Indoor unit Install the air conditioner in the location that satisfies the following conditions. - The place shall easily bear a load exceeding four times the indoor unit’s weight. - The place shall be able to inspect the unit as the figure. - The place where the unit shall be leveled.
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INSTALLATION Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. POSITION OF SUSPENSION BOLT - Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. - Apply a filter Accessory at air return hole. <TYPE A/D>...
INSTALLATION Indoor Unit Installation POSITION OF CONSOLE BOLT - A place where the unit will be leveled and - Select and mark the position for fixing bolts. that can support the weight of the unit. - Drill the hole for set anchor on the face of - A place where the unit can withstand its ceiling.
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INSTALLATION CAUTION Install declination of the indoor unit is very important for the drain of the duct type air conditioner. Minimum thickness of the insulation for the connecting pipe shall be 5 mm(3/16 inch). Front of view • The unit must be declined to the drain hose connected when finished installation. Ceiling CORRECT INCORRECT...
INSTALLATION Air Filter <TYPE A> Air Filter Panel Rear Air outlet Low static duct type in case of suction from back side. Panel Rear Air outlet Air Filter Low static duct type in case of suction from bottom side. Cabinet case Panel Rear In case of suction from bottom size, bend the Panel rear and screw with cabinet case.
INSTALLATION Insulate the joint and tubes completely. INSULATION, OTHERS THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Thermal insulator for refrigerant pipe Union for gas pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose clip for thermal insulator (Local supply)
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INSTALLATION CAUTION Drain test The air conditioner uses a drain pump to drain • Install declination of the indoor unit is water. very important for the drain of the duct Use the following procedure to test the drain type air conditioner. pump operation: - Connect the main drain pipe to the exterior •...
INSTALLATION Combination indoor units (AMNW**G**A0 / TYPE B / TYPE D) BD unit (PMBD3641) The indoor units connectable to the outdoor unit are shown below A8UW54GFA0 [LMU540HV] Outdoor Unit Indoor Unit (Btu/h class) Capacity Type (Btu/h 36 k 54 k class) Outdoor Unit Total capacity of connectable...
INSTALLATION Flaring work Flaring work - Carry out flaring work using flaring tool as Main cause of gas leakage is defect in flaring shown below. work. Carry out correct flaring work in the following procedure. A Inch (mm) Pipe diameter Thickness Inch (mm) Inch (mm)
INSTALLATION Connection of piping - Indoor, Outdoor, BD Unit (AMNW**G**A0 / AMNW18GL2A1 / TYPE B / TYPE D) Align the center of the piping and sufficiently tighten the flare nut by hand. Refrigerant Connections Capacity Indoor unit tubing Flare nut Pipes Pipe size (kBtu/h)
INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
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INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount 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.
INSTALLATION Indoor Unit Drain Piping - Connect the main drain pipe to the exterior and leave it provisionally until the test comes (TYPE B / C ) to an end. - Feed water to the flexible drain hose and Upward check the piping for leakage.
INSTALLATION Heat insulation <TYPE A> <TYPE B/C> (TYPE B / C / D) Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C). Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions Control box cover with Mist"...
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INSTALLATION <TYPE D> Case 2. Separate only side panel(when access from side of the product). - Open the control box cover and connect the Remove screws which are connecting remote controller cables, transmission two panel and pull down the side cables and indoor power cables.
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INSTALLATION Insulation, others After remove the control box cover, insert cables onto the bush and conduit and then Insulate the joint and tubes completely. connect at terminal block. THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Liquid pipe Refrigerant pipe and thermal insulation(Local supply)
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INSTALLATION CAUTION The power connecting cable between the outdoor and indoor units must comply with the following specifications: NRTL Recognized (for example, UL or ETL recognized and CSA certified). - For wiring, use the designated power wire and AWG 18-4 is the minimum recommended connect firmly, then secure to prevent outside wire size, however, the selected conductors pressure being exerted on the terminal block.
REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION ※Remote controller is provided as an accessory. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
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REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote controller using connection cable. Indoor Unit Side Connecting Cable 12 V Signal Yellow Remote Black Controller SPEED TEMP OPER MODE Please check if connector is normally connected. Indoor SPEED TEMP Unit side OPER MODE Please use extension cable if the distance between wired remote controller...
REMOTE CONTROLLER INSTALLATION <TYPE C> When connecting Terminal Blocks of the indoor C/BOX and the wired remote controller with the extension cable, refer to the steps below. ① Remove the screw on the cable which is fastened to the wired remote controller’s Terminal Block by loosening with a screw driver.
HOW TO SET E.S.P? HOW TO SET E.S.P? Installer Setting - E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. • If you set ESP incorrectly, the air conditioner may malfunction. •...
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HOW TO SET E.S.P? <TYPE B> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k HIGH 1 130 36 k <TYPE C> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 15(0.6) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k...
SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G (GREEN) Indoor Error Code Description LED 1(Red) LED 2(Green) status 1 time ◑ Indoor Room sensor error 2 times ◑ Indoor in-pipe sensor error 3 times ◑...
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Please call the installing contractor of your product, as warranty service will be provided by them. Service call Number # : (888) LG Canada, (888) 542-2623 CANADA Numéro pour les appels de service : LG Canada, 1-888-542-2623...
MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
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Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
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3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
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PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
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LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
Page 326
Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.
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TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
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IMPORTANT SAFETY INSTRUCTIONS • Make sure that a sekparate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire. •...
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TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INSTALLATION PARTS INSTALLATION Ceiling dimension and hanging bolt location Indoor Unit Installation Air Filter Checking the Drainage Indoor Unit Drain Piping Combination indoor units Flaring work Connection of piping - Indoor, Outdoor, BD Unit Plumbing materials and storage methods Indoor Unit Drain Piping Drain test...
INSTALLATION PARTS INSTALLATION PARTS Air inlet vents Air outlet vents Air outlet vents Air filters Air intake vents Remote Controller (Accessory) Control box Air outlet vents Air filters Air intake vents Washer for Clamp Insulation for Name Drain hose Clamp metal hanging bracket (Tie Wrap) fitting...
INSTALLATION INSTALLATION Indoor unit Install the air conditioner in the location that satisfies the following conditions. - The place shall easily bear a load exceeding four times the indoor unit’s weight. - The place shall be able to inspect the unit as the figure. - The place where the unit shall be leveled.
INSTALLATION Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. POSITION OF SUSPENSION BOLT - Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. - Apply a filter Accessory at air return hole. <TYPE A/D>...
INSTALLATION Indoor Unit Installation POSITION OF CONSOLE BOLT - A place where the unit will be leveled and - Select and mark the position for fixing bolts. that can support the weight of the unit. - Drill the hole for set anchor on the face of - A place where the unit can withstand its ceiling.
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INSTALLATION CAUTION Install declination of the indoor unit is very important for the drain of the duct type air conditioner. Minimum thickness of the insulation for the connecting pipe shall be 5 mm(3/16 inch). Front of view • The unit must be declined to the drain hose connected when finished installation. Ceiling CORRECT INCORRECT...
INSTALLATION Air Filter <TYPE A> Air Filter Panel Rear Air outlet Low static duct type in case of suction from back side. Panel Rear Air outlet Air Filter Low static duct type in case of suction from bottom side. Cabinet case Panel Rear In case of suction from bottom size, bend the Panel rear and screw with cabinet case.
INSTALLATION Insulate the joint and tubes completely. INSULATION, OTHERS THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Thermal insulator for refrigerant pipe Union for gas pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose clip for thermal insulator (Local supply)
INSTALLATION CAUTION Drain test The air conditioner uses a drain pump to drain • Install declination of the indoor unit is water. very important for the drain of the duct Use the following procedure to test the drain type air conditioner. pump operation: - Connect the main drain pipe to the exterior •...
INSTALLATION Combination indoor units (AMNW**G**A0 / TYPE B / TYPE D) BD unit (PMBD3641) The indoor units connectable to the outdoor unit are shown below A8UW54GFA0 [LMU540HV] Outdoor Unit Indoor Unit (Btu/h class) Capacity Type (Btu/h 36 k 54 k class) Outdoor Unit Total capacity of connectable...
INSTALLATION Flaring work Flaring work - Carry out flaring work using flaring tool as Main cause of gas leakage is defect in flaring shown below. work. Carry out correct flaring work in the following procedure. A Inch (mm) Pipe diameter Thickness Inch (mm) Inch (mm)
INSTALLATION Connection of piping - Indoor, Outdoor, BD Unit (AMNW**G**A0 / AMNW18GL2A1 / TYPE B / TYPE D) Align the center of the piping and sufficiently tighten the flare nut by hand. Refrigerant Connections Capacity Indoor unit tubing Flare nut Pipes Pipe size (kBtu/h)
INSTALLATION Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
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INSTALLATION Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount 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.
INSTALLATION Indoor Unit Drain Piping - Connect the main drain pipe to the exterior and leave it provisionally until the test comes (TYPE B / C ) to an end. - Feed water to the flexible drain hose and Upward check the piping for leakage.
INSTALLATION Heat insulation <TYPE A> <TYPE B/C> (TYPE B / C / D) Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C). Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions Control box cover with Mist"...
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INSTALLATION <TYPE D> Case 2. Separate only side panel(when access from side of the product). - Open the control box cover and connect the Remove screws which are connecting remote controller cables, transmission two panel and pull down the side cables and indoor power cables.
Page 353
INSTALLATION Insulation, others After remove the control box cover, insert cables onto the bush and conduit and then Insulate the joint and tubes completely. connect at terminal block. THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Liquid pipe Refrigerant pipe and thermal insulation(Local supply)
Page 354
INSTALLATION CAUTION The power connecting cable between the outdoor and indoor units must comply with the following specifications: NRTL Recognized (for example, UL or ETL recognized and CSA certified). - For wiring, use the designated power wire and AWG 18-4 is the minimum recommended connect firmly, then secure to prevent outside wire size, however, the selected conductors pressure being exerted on the terminal block.
REMOTE CONTROLLER INSTALLATION REMOTE CONTROLLER INSTALLATION ※Remote controller is provided as an accessory. Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup. - Please set it up not to bend because poor setup could take place if setup board bends. Please set up remote controller board fit to the reclamation box if there is a reclamation box.
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REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote controller using connection cable. Indoor Unit Side Connecting Cable 12 V Signal Yellow Remote Black Controller SPEED TEMP OPER MODE Please check if connector is normally connected. Indoor SPEED TEMP Unit side OPER MODE Please use extension cable if the distance between wired remote controller...
REMOTE CONTROLLER INSTALLATION <TYPE C> When connecting Terminal Blocks of the indoor C/BOX and the wired remote controller with the extension cable, refer to the steps below. ① Remove the screw on the cable which is fastened to the wired remote controller’s Terminal Block by loosening with a screw driver.
HOW TO SET E.S.P? HOW TO SET E.S.P? Installer Setting - E.S.P. This is the function that decides the strength of the wind for each wind level and because this function is to make the installation easier. • If you set ESP incorrectly, the air conditioner may malfunction. •...
Page 359
HOW TO SET E.S.P? <TYPE B> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k HIGH 1 130 36 k <TYPE C> Static Pressure(mmAq(in.Aq)) Capacity Step 2.5(0.1) 4(0.15) 6(0.23) 8(0.31) 10(0.39) 12(0.47) 14(0.55) 15(0.6) 16(0.62) 18(0.70) 20(0.78) Setting Value HIGH 24 k...
SELF-DIAGNOSIS FUNCTION SELF-DIAGNOSIS FUNCTION Indoor Unit Error Ex) Error 03 (Remote controller error) 3 Times 3 Times 3 Times LED02G (GREEN) Indoor Error Code Description LED 1(Red) LED 2(Green) status 1 time ◑ Indoor Room sensor error 2 times ◑ Indoor in-pipe sensor error 3 times ◑...
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Please call the installing contractor of your product, as warranty service will be provided by them. Service call Number # : (888) LG Canada, (888) 542-2623 CANADA Numéro pour les appels de service : LG Canada, 1-888-542-2623...
Page 363
MULTI MULTI OUTDOOR UNIT INSTALLATION MANUAL Multi-Zone Heat Pump Systems 1.5 to 5 Tons Dual and Tri-Zone Quad-Zone Eight-Zone Multi F Multi F Multi F MAX...
Page 389
Selecting Field-Supplied Copper Tubing Type ACR copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products. ACR rated tubing is the only type that ships with yellow caps. Approved tubing for use with Multi F products will be marked “R410 RATED” along the length of the tube.
Page 394
Field-Provided Isolation Ball Valves LG maintains a neutral position on using isolation valves in VRF refrigerant piping systems. LG does not endorse any manufacturer of isola- tion valves. It is recognized that installing isolation valves may simplify future maintenance requirements, and, if used, considerations should be taken including, but not limited to, the following: •...
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3. Provide strain relief by securing the wiring / cable to the indoor unit with the factory-supplied clamps. 4. For more installation information for specific indoor units, refer to the separate indoor unit installation manuals on www.lg-dfs.com. Distributor (BD) Unit (Multi F MAX Systems Only)
Page 421
PI485 ance may differ depending on PI485 V-net Control Integration Board for Outdoor Units adapt Multi F, Multi F MAX systems to a LG VRF model). system central protocol for integration with LG central controllers. The PI485 is installed in the Multi F / Multi F MAX outdoor unit.
Page 430
LG SIMS The SIMs WLAN module and the smart phone app together provide monitoring and trouble- shooting capability for LG Multi F / Multi F MAX systems. SIMs functions only with LG Duct Free products. SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
Page 437
Power wiring to the indoor units and branch distribution unit(s) (Multi F MAX only) was installed per all local electrical code requirements. LG-supplied cable was used between each indoor unit and its zone controller. No cables were spliced and no wire caps are present.
Page 442
20001747 ISO 9001: 2008 LG ELECTRONICS INC. Refer to Service Manuals posted on www.lghvac.com for a full description of all error codes and work-arounds. LG Electronics Products Support 1-888-865-3026 USA LG Electronics, U.S.A., Inc. Follow the prompts for HVAC products.
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