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INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing 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.
Ceilling Concealed Duct
MFL67206507
Rev.03_061118
Copyright © 2013 - 2018 LG Electronics Inc. All Rights Reserved.
www.lghvac.com
www.lg.com
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Table of Contents
Related Manuals for LG AMNW Series
Summary of Contents for LG AMNW Series
- Page 1 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. Ceilling Concealed Duct www.lghvac.com www.lg.com MFL67206507 Rev.03_061118 Copyright © 2013 - 2018 LG Electronics Inc. All Rights Reserved.
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Page 2: Tips For Saving Energy
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: •... -
Page 3: Important Safety Instructions
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... - Page 4 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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Page 5: Table Of Contents
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... -
Page 6: Installation Parts
INSTALLATION PARTS INSTALLATION PARTS Air outlet vents Air filters Air intake vents SPEED TEMP OPER MODE Wired Remote Controller (Accessory) Control box Air outlet vents Air filters Air intake vents Clamp Washer for Clamp Insulation for Name Drain hose metal hanging bracket (Tie Wrap) fitting... -
Page 7: Installation
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. -
Page 8: Ceiling Dimension And Hanging Bolt Location
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>... -
Page 9: Indoor Unit Installation
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. - Page 10 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 5mm(3/16 inch). Front of view • The unit must be declined to the drain hose connected when finished installation. Ceiling CORRECT INCORRECT...
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Page 11: Air Filter
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. -
Page 12: Checking The Drainage
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) -
Page 13: Indoor Unit Drain Piping
INSTALLATION Drain test CAUTION 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 •... -
Page 14: Combination Indoor Units
INSTALLATION Combination indoor units (AMNW**GBGA0 / TYPE B) 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 class) Outdoor Unit Total capacity of connectable (Btu/h class) indoor units (Btu/h) Vertical... -
Page 15: Flaring Work
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) -
Page 16: Connection Of Piping - Indoor, Outdoor, Bd Unit
INSTALLATION Connection of piping - Indoor, Outdoor, BD Unit (AMNW**GBGA0 / AMNW18GL2A1 / TYPE B) 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) Liquid 1/4 (Ø6.35) -
Page 17: Plumbing Materials And Storage Methods
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... - Page 18 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.
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Page 19: Indoor Unit Drain Piping
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 Pipe clamp check the piping for leakage. -
Page 20: Heat Insulation
INSTALLATION Heat insulation <TYPE A> <TYPE B/C> (TYPE B / C ) 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"... - Page 21 INSTALLATION different thicknesses. 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...
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Page 22: Remote Controller Installation
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. - Page 23 REMOTE CONTROLLER INSTALLATION Please connect indoor unit and remote controller using connection cable. Indoor Unit Side Connecting Cable 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 and indoor unit is more than 10m(32-4/5ft).
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Page 24: Wired Remote Controller Installation
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. -
Page 25: How To Set E.s.p
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 26 HOW TO SET E.S.P? <TYPE A> (Unit : CMM) Static Pressure(mmAq(in.Aq)) Capacity Step 0(0) 1(0.04) 2(0.08) 3(0.12) 4(0.16) 5(0.2) Setting Value HIGH HIGH HIGH <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 HIGH...
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Page 27: Self-Diagnosis Function
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 1time ◑ Indoor Room sensor error 2times ◑ Indoor in-pipe sensor error 3times ◑...