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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.
HVAC ez (AC Ez)
PQCSZ250S0, CQCSZ250S0
Original instructions
P/NO : MFL69157009
Copyright © 2015 - 2017 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Table of Contents
Related Manuals for LG BECON PQCSZ250S0
Summary of Contents for LG BECON PQCSZ250S0
- Page 1 Please retain this installation manual for future reference after reading it thoroughly. HVAC ez (AC Ez) PQCSZ250S0, CQCSZ250S0 Original instructions www.lg.com P/NO : MFL69157009 Copyright © 2015 - 2017 LG Electronics Inc. All Rights Reserved.
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Page 2: Safety Precautions
SAFETY PRECAUTIONS SAFETY PRECAUTIONS • This product must be installed by an installation professional from an LG authorized service center. • Any issues stemming from an installation by an unauthorized person is the responsibility of the user and will not be covered by warranty. - Page 3 SAFETY PRECAUTIONS • When wiring the product, do not use a non-standard cable, nor extend the cable excessively. - It may cause a fire or electric shock. • Securely install the power cord and communication cable. - An unsecure installation may result in a fire or electric shock. •...
- Page 4 SAFETY PRECAUTIONS • Do not place a heavy object on the product. - The product may malfunction. • Do not spray water on the product, or clean it with a water-soaked cloth. - It may cause a fire or electric shock. •...
- Page 5 SAFETY PRECAUTIONS According to IEC 60335-1 This appliance is not intended for use by person (including children) with reduced physical, or mental capabilities, or lack of experience and knowledge, unless they have been given supervi- sion or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
- Page 6 INTRODUCTION INTRODUCTION Features 190mm 120mm AC Ez Controller Back bracket Screw Accessory Bracket Manual Room name sheet Screw 4EA Screw 1EA Installation cable (For Fixing on the wall) (For Fixing on the bracket) CAUTION If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
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Page 7: Installation Instruction
INSTALLATION INSTRUCTION INSTALLATION INSTRUCTION After locating AC Ez installation Bracket at the - In case of no reclamation to the surface of desired location, screw the unit firmly. the wall : Use the right part guide groove. - Set it up not to bend because poor setup could take place if setup board bends. - Page 8 INSTALLATION INSTRUCTION Method to Connect cable To supply power to the central controller, supply it from the terminal block DC 10V and GND ter- minal of PI485 or the terminal block DC 12V and GND of outdoor unit. AC Ez PI485 AC Ez Multi V...
- Page 9 INSTALLATION INSTRUCTION In case of independence installation of AC Ez . . . IDU connection MAIN Pl485 BUSA BUSB Vcc GND BUSB BUSA BUSB BUSA Master Group Number : 0 Central controller 1 . . . IDU connection MAIN INTA INTB Vcc GND INTB INTA BUSB BUSA...
- Page 10 INSTALLATION INSTRUCTION In case of linkage installation of AC Ez . . . IDU connection MAIN Pl485 BUSA BUSB Vcc GND BUSB BUSA Master Group Number : 0 Central controller 1 . . . IDU connection MAIN Pl485 BUSA BUSB Vcc GND BUSB BUSA Slave Group Number : 1...
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Page 11: Part Description
INSTALLATION INSTRUCTION Part description Name and Function of AC Ez Display screen Control panel Control panel Display screen Description Control select button : Adjusts selected indoor unit range. Total On/Off button : Turns the power on/off condi- tion of selected indoor units. Individual On/Off button : Turns the power on/off condition of individual indoor unit. - Page 12 INSTALLATION INSTRUCTION Name and Function of AC Ez (Continued) Display screen Control panel Control panel Display screen Description Set temperature button : Change desired operation temperature of air conditioner Indoor select button : Select desired indoor unit to control Function setting button : Enter installation mode to installation setup Current time setting button : Setup the current time Schedule setting button : Enter the schedule setup...
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Page 13: Installer Setting Code Table
INSTALLATION INSTRUCTION Installation setup mode _ How to enter installer setup mode CAUTION Installer setting mode is to set the detail function of the AC Ez. If the installer setting mode is not set correctly, it can cause problems to the product, Injury to user or property damage. - Page 14 INSTALLATION INSTRUCTION Flow chart for Installer setup mode Press button for 5 seconds. Entry Installation mode Enter installation mode #1 : Master/Slave setting (Master/Slave setting) Press button shortly : ‘Group 1 ’ product setting Enter installation mode #2 (Air conditioner or Ventilator) (Group 1 setting) : ‘Group 1 ’...
- Page 15 Representative: LG Electronics Inc. EU Representative, Krijgsman 1, 1186 DM Amstelveen, The Netherlands Manufacturer: LG Electronics Inc. Changwon 2nd factory, 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA ver. 1.0.1...