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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 CASSETTE - 2WAY
P/NO : MFL42803102
www.lg.com
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Table of Contents
Related Manuals for LG MultiV Series
Summary of Contents for LG MultiV 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. TYPE : CEILING CASSETTE - 2WAY www.lg.com P/NO : MFL42803102...
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Page 2: Table Of Contents
Ceiling Cassette - 2Way Type Indoor Unit Installation Manual TABLE OF CONTENTS Installation Requirements Required Parts Required Tools Installation Parts ....3 Safety Precautions....4 ❏ Installation guide map ❏ Level gauge Installation ❏ Four type "A" screws & plastic ❏ Screw driver ❏... -
Page 3: Installation Parts
Installation Parts Installation Parts Anti-bacteria filter Air Intake Air Outlet Wired Remote Controller Washer for Clamp Insulation for (Other) Name Clamp metal Drain hose hanging bracket (Tie Wrap) fitting Quantity 2 EA 1 EA 1 set 8 EA 4 EA ¥... -
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. ■ Be sure to read before installing the air conditioner. ■ Be sure to observe the cautions specified here as they include important items related to safety. ■... - 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 ■ 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 • There should not be any heat source or steam near the unit. • There should not be any obstacles to the air circulation. • A place where air circulation in the room will be good. •... -
Page 8: Ceiling Dimension And Hanging Bolt Location
Installation Ceiling dimension and hanging bolt location • The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions. 1010 (Ceiling opening) Ceiling 877 (Hanging bolt) Level gauge CAUTION : • This air-conditioner uses a drain pump. -
Page 9: Wiring Connection
Installation Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm (W3/8 or M10) Flat washer for M10 (W3/8 or M10) False Air Conditioner body (accessory) False ceiling board ceiling board Flat washer for M10 (accessory) Paper pattern Set screw of paper pattern (4 pieces) -
Page 10: Installation Of Decoration Panel
Installation Installation of Decoration Panel The decoration panel has its installation Before installing the decoration panel, direction. always remove the paper template. 1. Temporarily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount 10mm in length.) The fixing screws (hexagon M5 screw) are included the indoor unit box. -
Page 11: Drain Piping
Installation Drain Piping • Drain piping must have down-slope (1/50 to 1/100): be sure not to Upward provide up-and-down slope to prevent reversal flow. Pipe clamp routing • During drain piping connection, be careful not to exert extra force not allowed on the drain port on the indoor unit. - Page 12 Installation CAUTION: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit.
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Page 13: Installer Setting -Thermistor
Installation Installation of Wired Remote Controller 1. 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 14 Installation 4. Please connect indoor unit and remote controller using connection cable. Please check if connector is normally connected. Indoor Unit side Connecting cable 5. Please use extension cable if the distance between wired remote controller and indoor unit is more than 10m.
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Page 15: Name And Function Of Wired Remote Controller(Accessory)
Installation Name and function of wired remote controller(Accessory) 1. Operation indication screen 2. Set temperature button • It will set not room temperature but outlet air temperature. 3. Fan speed button • Fan Speed have 3 Steps. • Middle and Low step is same 4. -
Page 16: Dip Switch Setting
Installation Dip Switch Setting of Indoor unit PCB Function Description Setting Off Setting On Default Communication N/A (Default) Cycle N/A (Default) Group Control Selection of Master or Slave Master Slave Dry Contact Mode Selection of Dry Contact Wired/Wireless remote Mode controller Auto Selection of Manual or Auto... -
Page 17: Group Control Setting
Installation Group Control Setting 1. Group Control 1 ■ Wired remote controller 1 + 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 ■... - Page 18 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 19 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.
- Page 20 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 21 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...
- Page 22 Memo Indoor Unit...