LG ARNU363B8A4 Installation Manual

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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 http://www.lghvac.com www.lg.com P/NO : MFL65003103 Rev.00_020718 Copyright © 2015 - 2018 LG Electronics Inc. All Rights Reserved.
Page 2 IMPORTANT! Please read this instruction sheet completely before installing the product. This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. WARNING •...
Page 3: Table Of Contents
Table of contents TABLE OF CONTENTS SAFETY PRECAUTIONS INTRODUCTION Symbols Used in this Manual Features INSTALLATION Selection of the best location Ceiling dimension and hanging bolt location Indoor Unit Installation Wiring Connection Checking the Drainage Plumbing materials and storage methods Drain Piping Dip Switch Setting Group Control Setting...
Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
Page 5 Safety Precautions • 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 the risk of death, injury, fire or explosion. Operation •...
Page 6 Safety Precautions CAUTION Installation • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Install the drain hose to ensure that water is drained away properly. - A bad connection may cause water leakage. •...
Page 7: Introduction
Introduction Introduction Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Features Low static Duct type Air outlet vents Air filters Air intake vents...
Page 8: Installation
Installation Installation Read completely, then follow step by step. Selection of the best location 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. •...
Page 9: Ceiling Dimension And Hanging Bolt Location
Installation Ceiling dimension and hanging bolt location n Installation of Unit Install the unit above the ceiling correctly. CASE 1 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. L1, L2, L3 Series BH/BG/BR Chassis B8 Chassis...
Page 10 Installation CASE 2 • Install the unit leaning to a drainage hole side as a figure for easy water drainage. POSITION OF CONSOLE BOLT • A place where the unit will be leveled and that can support the weight of the unit. •...
Page 11: Indoor Unit Installation
Installation Indoor Unit Installation • Select and mark the position for fixing bolts. • Insert the set anchor and washer onto the • Drill the hole for set anchor on the face of ceiling. suspension bolts for locking the suspension bolts on the ceiling.
Page 12: Checking The Drainage
Installation Connection method of the connecting cable(Example) L1, L2, L3 Series L(L1) N(L2) 3(A) 4(B) Conduit Hole Power Supply Transmission High Voltage (208/230V) BH/BG/BR/B8 Series L(L1) N(L2) Conduit Hole Power Supply Wired Remote Transmission High Voltage Controller (208/230V) WARNING : Loose wiring may cause the terminal to overheat or result in unit malfunction.
Page 13 Installation CAUTION : The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (This equipment shall be provided with a cord set complying with the national regulation). 10±3mm AWG18 If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent.
Page 14: 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 15 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. It prevents normal operation of the compressor.
Page 16 Installation INSULATION, OTHERS Insulate the joint and tubes completely. THERMAL INSULATION All thermal insulation must comply with local requirement. INDOOR UNIT Union for liquid pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for Refrigerant pipe and thermal piping(Local supply) insulator(Local supply) Hose crip for thermal insulator (Local supply)
Page 17 Installation CAUTION 1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe shall be 19mm. Front of view • The unit must be horizontal or declined to the drain hose connected when finished installation. Ceiling Drainage hole Drain Pump use...
Page 18: Drain Piping
Installation Drain Piping • Drain piping must have down-slope (1/50 to 1/100): be sure Upward Pipe clamp not to provide up-and-down slope to prevent reversal flow. routing • During drain piping connection, be careful not to exert not allowed Indoor unit extra force on the drain port on the indoor unit.
Page 19: Dip Switch Setting
Installation Dip Switch Setting 1. Indoor Unit Function Description Setting Off Setting On Default Communication N/A (Default) Cycle N/A (Default) Selection of Master or Group Control Master Slave Slave Wired/Wireless remote Dry Contact Selection of Dry controller Auto Mode Contact Mode selection of Manual or Auto operation Mode Fan continuous...
Page 20: Group Control Setting
Installation Group Control Setting 1. Group Control 1 n Wired remote controller 1 + Standard Indoor Units LGAP Network System Signal Master Slave Slave Slave 12 V Only connect serial signal and GND lines Display Error Message between indoor units. Master n DIP Switch in PCB ¿...
Page 21 Installation h It is possible to connect indoor units since Feb. 2009. h It can be the cause of malfuctions when there is no setting of master and slave. h In case of Group Control, it is possible to use following functions. - Selection of operation, stop or mode - Temperature setting and room temperature check - Current time change...
Page 22 Installation 3. Group Control 3 n Mixture connection with indoor units and Fresh Air Intake Unit LGAP Network System Master Signal Slave Master Slave Master 12 V Display Error Message Display Error Message Master Master h In case of connecting with standard indoor unit and Fresh Air Intake Unit, separate Fresh Air Intake Unit with standard units.
Page 23 Installation 4. 2 Remote Control n Wired remote controller 2 + Indoor unit 1 LGAP Network System Slave Signal Slave Slave Master 12 V Display Error Message Master Slave 1. It is possible to connect two wired remote controllers (Max.) with one indoor unit. Set only one indoor unit to Master, set the others to Slave.
Page 24: E.s.p Table
Installation E.S.P Table (Unit:CMM (cfm)) ARNU073L1G4, ARNU093L1G4 Setting Static Pressure(mmAq (in.Aq)) Value 0(0) 1(0.04) 2(0.08) 3(0.12) 4(0.16) 5(0.20) 5.03(178) 5.60(198) 4.85(171) 6.19(219) 5.44(192) 4.57(161) 6.79(240) 6.05(214) 5.17(183) 7.41(262) 6.67(236) 5.80(205) 4.80(170) 8.05(284) 7.31(258) 6.43(227) 5.44(192) 8.71(308) 7.96(281) 7.09(250) 6.09(215) 4.97(176) 9.38(331) 8.63(305) 7.76(274)
Page 25 Installation ARNU073BHA4, ARNU09GBHA4, ARNU123BHA4, ARNU153BHA4, ARNU183BHA4, ARNU243BHA4 (Unit : CMM(cfm)) Static Pressure(mm Aq (in. Aq)) Setting Value 3(0.12) 4(0.15) 5(0.19) 6(0.23) 7(0.27) 8(0.31) 9(0.35) 10(0.39) 12(0.47) 4.1(145) 7.6(269) 10.7(378) 8.1(286) 6.3(223) 4.9(173) 13.4(473) 11.2(396) 9.6(339) 7.5(265) 4.0(141) 15.9(562) 13.2(466) 12.6(445) 10.3(364) 7.7(272) 5.5(194) 18.6(657) 16.2(572) 15.2(537) 12.8(452) 11.1(392)
Page 26 Installation ARNU363B8A4, ARNU423B8A4, ARNU483B8A4, ARNU763B8A4, ARNU963B8A4 (Unit : CMM(cfm)) Static Pressure(mmAq (in.Aq)) Setting Value 6(0.23) 9(0.35) 12(0.47) 15(0.59) 18(0.71) 20(0.79) 22(0.86) 23(0.90) 25(0.98) 40.5(1430) 52.7(1861) 39.3(1388) 63.7(2249) 47.1(1663) 71.1(2511) 56.9(2009) 44.7(1578) 76.3(2694) 69.7(2461) 55.2(1949) 83.3(2941) 78.6(2775) 67.4(2380) 55.9(1974) 31.8(1123) 89.7(3167) 87.1(3076) 78.9(2786) 67.6(2387) 54.2(1914) 93.4(3298) 91.4(3227) 86.1(3040) 77.0(2719) 66.4(2345) 50.6(1787) 30.0(1059)

LG ARNU363B8A4 Installation Manual

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