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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.
TYPE: Ceiling Concealed Duct - High Static
MODEL : ARNU76GB8D2 / ARNU96GB8D2
P/NO : MFL42803132
www.lg.com
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Summary of Contents for LG ARNU96GB8D2
- 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. TYPE: Ceiling Concealed Duct - High Static MODEL : ARNU76GB8D2 / ARNU96GB8D2 www.lg.com P/NO : MFL42803132...
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Page 2: Table Of Contents
Ceiling Concealed Duct - High Static Type Indoor Unit Installation Manual TABLE OF CONTENTS Installation Requirements Required Parts Required Tools Features ........3 Safety Precautions....4 o Level gauge Installation .......7 o Four type "A" screws o Screw driver o Connecting cable o Electric drill o Hole core drill Selection the best location ..7... -
Page 3: Features
Feature Features Air outlet vents Air filters Air intake vents Wired Remote Controller TE MP ote Cont roller Washer for Clamp Insulation for (Other) Name Clamp metal Drain hose hanging backet (Tie Wrap) fitting Quantity 1 EA 2 EA 8 EA 4 EA 1 SET •... -
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 Be sure to read before installing the air conditioner. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage. - Page 5 Safety Precautions Do not modify or extend the Do not let the air conditioner Be cautious when unpacking power cable. run for a long time when the and installing the product. humidity is very high and a door or a window is left open. •...
- Page 6 Safety Precautions n Installation Always check for gas (refrig- Install the drain hose to Keep level even when erant) leakage after installa- ensure that water is drained installing the product. tion or repair of product. away properly. • Low refrigerant levels may •...
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Page 7: 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 8: Ceiling Opening Dimension And Hanging Bolt Location
Installation Ceiling dimension and hanging bolt location n Installation of Unit B8 Chassis 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. (Unit:mm) Dimension Chassis 1622 1584 580 292 713 1400 460 1122 1692 390 445 15... -
Page 9: Indoor Unit Installation
Installation Indoor Unit Installation • Select and mark the position for fixing bolts. • Insert the set anchor and washer onto the suspen- • Drill the hole for set anchor on the face of ceiling. sion bolts for locking the suspension bolts on the ceiling. -
Page 10: Insulation, Others
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 11: Indoor Unit Drain Piping
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 5mm. Front of view • The unit must be horizontal or declined to the drain hose connected when finished installation. -
Page 12: Drain Test
Installation Drain test The air conditioner uses a drain pump to drain water. Use the following procedure to test the drain pump operation: Flexible drain hose Feed water • Connect the main drain pipe to the exterior and leave it (accessory) provisionally until the test comes to an end. -
Page 13: Wired Remote Controller Installation
Installation WIRED REMOTE CONTROLLER INSTALLATION • Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature. Install the remote controller about 5ft(1.5m) above the floor in an area with good air circulation at an average temperature. -
Page 14: Group Control Setting
Installation Group Control Setting 1. Group Control 1 Wired remote controller 1 + Standard Indoor Units LGAP Network System Slave Master Slave Signal Slave 12 V Display Error Message Only connect serial signal and GND lines between slave indoor unit Master Dip Switch in PCB (Cassette and Duct Type indoor units) - No. - Page 15 Installation 5. In case of any error occurs at indoor unit, display on the wired remote controller. Exception of the error indoor unit, an individual indoor unit control possibility. 6. In case of Group Control, it is possible to use following functions. - Selection of operation options (operation/stop/mode/set temperature) - Control of flow rate (High/Middle/Low) - It is not possible at some functions.
- Page 16 Installation 3. Group Control 3 Mixture connection with indoor units and Fresh Air Intake Unit LGAP Network System Signal Master Slave Master Slave 12 V Display Error Message Master Master In case of connecting with standard indoor unit and Fresh Intake Unit, separate Fresh Air Intake Unit with standard units.
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Page 17: Remote Control
Installation 4. 2 Remote Control Wired remote controller 2 + Indoor unit 1 LGAP Network System Master Display Error Message Master Slave 1. It is possible to connect two wired remote controllers with one indoor unit. 2. Every types of indoor unit is possible to connect two remote controller. 3. - Page 18 Installation 5. Accessories for group control setting It is possible to set group control by using below accessories. Indoor unit 2 EA +Wired remote controller Indoor unit 1 EA +Wired remote controller 2EA ❈ PZCWRCG3 cable used for connection ❈ PZCWRC2 cable used for connection S lave Mas te r PZC WRC 2...
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Page 19: How To Set E.s.p
How to Set E.S.P? How to Set E.S.P? ARNU76GB8D2, ARNU96GB8D2 (Unit: CMM) Static Pressure(mmAq(Pa)) Setting Value 6(59) 8(78) 9(88) 10(98) 12(118) 15(147) 18(177) 20(196) 22(216) 23(226) 25(245) 63.7 58.4 47.1 71.1 63.5 56.9 52.8 44.7 76.3 73.1 69.7 64.9 55.2 83.3...
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