LG Multi V 2 Series Installation Manual
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LG Multi V 2 Series Installation Manual

LG Multi V 2 Series Installation Manual

Indoor unit
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Indoor Unit (2 Series)
INSTALLATION MANUAL
Type: Floor Standing
Concealed Floor Standing
System
IMPORTANT
• 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.
LG

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Summary of Contents for LG Multi V 2 Series

  • Page 1 System Indoor Unit (2 Series) INSTALLATION MANUAL Type: Floor Standing Concealed Floor Standing IMPORTANT • 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.
  • 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

    Floor Standing Concealed Floor Standing Type Indoor Unit Installation Manual TABLE OF CONTENTS Required Parts Required Tools Installation Requirements Safety Precautions ....4 Introduction ......7 ❏ Level gauge Installation ❏ Four type "A" screws ❏ Screw driver ❏ Connecting cable ❏ Electric drill Selection the best location ..8 ❏...

  • 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. I Be sure to read before installing the air conditioner. I Be sure to observe the cautions specified here as they include important items related to safety. I 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 I Installation Always check for gas (refriger- Install the drain hose to ensure Keep level even when installing ant) leakage after installation or that water is drained away prop- the product. repair of product. erly. • Low refrigerant levels may cause •...

  • 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 [CEA/CFA Type] Control panel Air Outlet Wired Remote...

  • Page 8: Installation

    Installation Installation Selection of the best location Indoor unit Install the air conditioner in the location that satisfies the fol- lowing conditions. • The place shall easily bear a load exceeding four times the indoor unit’s weight. Window • Sufficient space should be available to inspect the unit as in the figure shown on the right.
  • Page 9 Installation Bolt pitch • Positioning of holes for fastening to the wall Unit:mm(inch) Type CEA, CEU 858(33-3/4) CFA, CFU 1136(44-3/4) 1. Use the installationmount for installation. Check whether the wall is strong enough to bear the weight of the unit or not. if there is a risk, reinforce the wall before installing the unit.

  • Page 10: Preparation Of Piping

    Installation Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. 1. Cut the pipes and the cable. I Use the accessory piping kit or the pipes purchased Copper Slanted Uneven Rough tube...
  • Page 11 Installation CAUTION • Always use a charge hose for service port connection. • After tightening the cap, check that no refrigerant leaks are present. Union • When loosening a flare nut, always use two wrenches in combination, When connecting the piping, always use a spanner and torque wrench in combination to tighten the flare nut.

  • Page 12: Drain Piping Work

    Installation HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "ISO Fastening band (accessory) Conditions with Mist" and confirmed that there is not any default.

  • Page 13: How To Connect Wirings

    Installation How to connect wirings Remove the electric parts Box cover and connect the wiring Fasten with clamp Power supply wiring Power Supply wiring ground wiring ground wiring (Field wiring) Fasten with Transmission wiring Transmission wiring accessory clamp (Field wiring) Wiring Connection Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
  • Page 14 Installation CAUTION: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover. 2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation.
  • Page 15 Installation WIERED 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 tempera- ture.

  • Page 16: Installation Of Wired Remote Controller

    Installation Installation of Wired Remote Controller 1. Connect the wired remote controller cable to the wired remote controller installation board as shown in the right picture. 12V SIG GND Red wire Yellow Yellow wire Black Black wire Remote Controller ❊ The wired remote controller cable is connected as factory default. Cable 2.
  • Page 17 Installation 5. Use the connecting cable to connect the indoor unit and the wired remote controller. Check whether the connector is connected correctly. Indoor unit side Connecting cable 6. When the distance between the wired remote controller and the indoor unit is 10m and above, use the extension cable.

  • Page 18: Optional Operation Of Wired Remote Controller

    Installation Optional Operation of Wired Remote Controller Two Thermistor System 1. Press button for 4 seconds to enter the installer setting mode until timer segment display “01:01”. 2. Repeat pressing button to select Function code 04. 04:01 Function Code Thermistor setting 3.

  • Page 19: Dip Switch Setting

    Installation Dip Switch Setting 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 operation Mode Installation CST –...

  • Page 20: Group Control Setting

    Installation Group Control Setting 1. Group Control 1 I Wired remote controller 1 + Indoor units LGAP Network System Master Slave Slave Slave Signal 12 V Display Error Message Only connect serial signal and GND lines between slave indoor unit Master 1.

  • Page 21: Group Control

    Installation 2. Group Control 2 I Wired remote controllers + Indoor units LGAP Network System Master Slave Slave Slave Signal 12 V Don’t connect serial 12V line Display Error Message Master Slave 1. It is possible to control N indoor units by wired remote controller M units. (M+N≤17 Units) Set only one indoor unit to Master, set the others to Slave.
  • Page 22 Installation 3. 2 Remote Control I Wired remote controller 2 + Indoor unit 1 LGAP Network System Master Signal 12 V Display Error Message Master Slave 1. It is possible to connect two wired remote controllers with one indoor unit. 2.
  • Page 23 P/No.: MFL42803120 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.

This manual is also suitable for:

Multi v ceu seriesMulti v cea seriesMulti v cfu seriesMulti v cfa series

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