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LG AC Ez Installation & Owner's Manual

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INSTALLATION/
OWNER'S 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.
(AC Ez)
PQCSZ250S0
www.lg.com
P/NO : MFL63284102

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Table of Contents

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   Summary of Contents for LG AC Ez

  • Page 1 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. (AC Ez) PQCSZ250S0 www.lg.com P/NO : MFL63284102...
  • Page 2: Ergy

    TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS SAFETY PRECAUTIONS • The installation requires expert skills, and it should be installed by the service center or other shops specialized in the installation and recognized by our company. • For all the problems arising after installation by someone who has no relevant qualifications, our company will not provide free service.
  • Page 4 SAFETY PRECAUTIONS CAUTION In-use • Do not clean using the powerful detergent like solvent but use soft cloths. It will cause fire or product deformation. • Do not press the screen using powerful pressure or select two buttons. It will cause product breakdown or malfunction. •...
  • Page 5: Table Of Contents

    Flow chart for current time setting In case of independence installation of Changing current time AC Ez Flow chart for schedule setting In case of linkage installation of AC Ez Schedule reservation Part description Schedule display Name and Function of AC Ez...
  • Page 6: Introduction

    INSTALLATION INSTRUCTION INTRODUCTION Features 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)
  • 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: Method To Connect Cable

    CAUTION • For supplying DC10 V power from PI485, power supply is permitted up to 1 central con- trollers per PI485. If power is supplied more than 1 AC Ez, failure may occur in operation of the AC Ez. • For expanding and connecting PI485 communication lines BUS_A, BUS_B up to 16 AC Ezs can be connected.
  • Page 9: In Case Of Independence Installation Of Ac Ez

    Group Number : 0 Central controller 1 . . . IDU connection MAIN INTA INTB Vcc GND INTB INTA BUSB BUSA Master Group Number : 0 Central controller 1 NOTE AC Ez power should be inputted only one AC Ez from outdoor unit.
  • Page 10: In Case Of Linkage Installation Of Ac Ez

    Central controller 1 NOTE AC Ez power should be inputted only one AC Ez from outdoor unit. It is possible to set the Master/Slave setting and group number setting by entering the installation mode. Central controller and outdoor unit wiring should be connected through BUS connection...
  • Page 11: Part Description

    INSTALLATION INSTRUCTION Part description Name and Function of AC Ez Display screen Control panel Control panel Display screen Description C C ontrol select button : Adjusts selected indoor unit range. T T otal On/Off button : Turns the power on/off condi- tion of selected indoor units.
  • Page 12 INSTALLATION INSTRUCTION Name and Function of AC Ez (Continued) Display screen Control panel Control panel Display screen Description S S et temperature button : Change desired operation temperature of air conditioner Indoor select button : Select desired indoor unit to...
  • Page 13: Installation Setup Mode _ How To Enter

    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: Flow Chart For Installer Setup Mode

    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 Installation setup mode #1 _ Master/Slave setting If pressing button long for 5 seconds, it enters into AC Ez setup mode. - If pressing once shortly, it doesn’t enter into installer setup mode. Please press more than 5 seconds for sure.
  • Page 16: Installation Setup Mode #2

    This function is used for setting the product type and group number of group 1. If pressing button long for 5 seconds, it enters into AC Ez setup mode. - If pressing once shortly, it doesn’t enter into installer setup mode. Please press more than 5 seconds for sure.
  • Page 17: Installation Setup Mode #3

    This function is used for setting the product type and group number of group 2. If pressing button long for 5 seconds, it enters into AC Ez setup mode. - If pressing once shortly, it doesn’t enter into installer setup mode. Please press more than 5 seconds for sure.
  • Page 18: Installation Setup Mode #4

    INSTALLATION INSTRUCTION Installation setup mode #4 _ Searching the Connected indoor unit (Master Only) This function is searching connected indoor unit. This function can use only AC Ez controller of set Master. After central address setting of indoor unit and auto-addressing of outdoor unit, start searching the connected indoor unit.
  • Page 19: Installation Setup Mode #5

    To change temperature display type from Celsius to Fahrenheit and vise versa If pressing button long for 5 seconds, it enters into AC Ez setup mode. - If pressing once shortly, it doesn’t enter into installer setup mode. Please press more than 5 seconds for sure.
  • Page 20: Checking Mode _ Confirmation Of Connected Indoor Unit

    INSTALLATION INSTRUCTION Checking mode _ Confirmation of connected indoor unit Select the group to control and display by pressing “GROUP SELECT” button. When pressing “GROUP SELECT” button, Group 1 and Group 2 is changed in turn. When pressing the button, it indicates connected indoor units by blinking corre- sponding individual on/off led of connected indoor unit 5 times.
  • Page 21: Owner's Instruction

    INSTALLATION INSTRUCTION OWNER'S INSTRUCTION Group selection Select the group to control and display by pressing “GROUP SELECT” button. When pressing “GROUP SELECT” button, Group 1 and Group 2 is changed in turn. When pressing “GROUP SELECT” button, LED is turned on as set group and displayed corresponding current condition by using LCD and LED.
  • Page 22: Individual Unit Operation

    OWNER'S INSTRUCTION Individual unit operation This is the function to control on/off condition of individual indoor unit . In case of off condition - If corresponding indoor unit is selected already When pressing individual ON/OFF button, corresponding indoor unit is operated and is turned on individual on/off LED.
  • Page 23: Group Operation

    OWNER'S INSTRUCTION Group operation This is the function to control on/off condition of group units. In case of operation Off condition When pressing button, all connected units of corresponding group are operated and are turned on it in regular sequence. At that time, corresponding group number and controlled indoor unit condition the lat- est is displayed in LCD.
  • Page 24: All Operation (master Ac Ez Only)

    OWNER'S INSTRUCTION All operation (Master AC Ez only) This is the function to control on/off condition of all units.This function is used for master AC Ez controller only. Select “ALL” control mode by pressing button of Master AC Ez controller.
  • Page 25: Air-conditioner Operation Mode Setting

    OWNER'S INSTRUCTION Air-conditioner operation mode setting This is the function to control operation mode of Air-conditioner / Eco-V DX Select the group to control by pressing “GROUP SELECT” button. (In case of ventilator, this function is not working.) Select indoor unit to control by pressing individual on/off button. (Or select indoor unit to control by pressing button.) Select operation mode of corresponding indoor unit by pressing...
  • Page 26: Ventilation Mode Setting

    OWNER'S INSTRUCTION Ventilation mode setting This is the function to control ventilation mode of ventilator / Eco-V DX Select ventilation product by pressing “GROUP SELECT” button. (In case of air-conditioner, this function is not working.) Select indoor unit to control by pressing individual on/off button. (Or select indoor unit to control by pressing button.) Select the ventilation mode of corresponding ventilator by pressing...
  • Page 27: Desired Temperature Setting

    OWNER'S INSTRUCTION Desired temperature setting This function is used for setting desired temperature of air-conditioner / Eco-V DX. Select the group to control by pressing “GROUP SELECT” button. Select indoor unit to control by pressing individual on/off button. (Or select indoor unit to control by pressing button.) Setup the desired temperature by pressing button.
  • Page 28: Fan Speed Setting

    OWNER'S INSTRUCTION Fan speed setting The function is used to control desired fan speed. Select the group to control by pressing “GROUP SELECT” button. Select indoor unit to control by pressing individual on/off button. (Or select indoor unit to control by pressing button.) Setup the desired fan speed to control by pressing button.
  • Page 29: Air flow Direction Setting

    OWNER'S INSTRUCTION Air flow direction setting This function is used to control air flow direction of air-conditioner. Select the group to control by pressing “GROUP SELECT” button. Select indoor unit to control by pressing individual on/off button. (Or select indoor unit to control by pressing button.) Select the setting condition of air flow direction by pressing button.
  • Page 30: Lock Setting

    OWNER'S INSTRUCTION Lock setting This function is used to limit the indoor unit control of remote controller. In this condition, it is possible to control indoor unit by central controller only. Select the group to control by pressing “GROUP SELECT” button. Select indoor unit to control by pressing individual on/off button.
  • Page 31: Flow Chart For Current Time Setting

    OWNER'S INSTRUCTION Flow chart for current time setting • Current time setting Press button for 5 seconds. Entry to current time setting mode. Select today : Select today Press button. AM/PM setting : Select AM or PM Press button. : Select the current hour hour setting (1~12, 1 Hour interval) Press...
  • Page 32: Changing Current Time

    OWNER'S INSTRUCTION Changing current time This function is used to change current time. Press button for 5 seconds to enter ‘Current time’ setting mode. The current day of the week will blink on window. Select the current day by pressing the button.
  • Page 33 OWNER'S INSTRUCTION Enter ‘hour’ setting mode by pressing the button. The hour in window will blink. Select current hour by pressing the button. (1~12, 1 Hour interval) Enter ‘minute’ setting mode by pressing the button. The minute in window will blink.
  • Page 34: Flow Chart For Schedule Setting

    OWNER'S INSTRUCTION Flow chart for schedule setting • Schedule setting Press button shortly. Entry to schedule setting mode. : select the day of Select day of week week to set up the schedule. Press button. Schedule number : select schedule selection number to set up schedule (1~8)
  • Page 35: Schedule Reservation

    OWNER'S INSTRUCTION Schedule reservation Press button shortly to enter ‘schedule’ setting mode. Day of the week will blink. Select desired schedule day by pressing the button. After selecting the desired day, press the button to enter to schedule time set- ting mode.
  • Page 36 OWNER'S INSTRUCTION Enter ON/OFF setting mode by pressing the button. ON or OFF icon in the win- dow will blink. Select ON/OFF condition of schedule by pressing button. Enter AM/PM setting mode by pressing the button. AM or PM icon in window will blink.
  • Page 37 OWNER'S INSTRUCTION Select desired hour by pressing the button. 1~12 (1 Hour interval) Enter ‘minute’ setting mode by pressing the button. The minute in window will blink. Select desired minute by pressing the button. 00~50 (10 Minutes interval) Select operation mode by pressing the button.
  • Page 38 OWNER'S INSTRUCTION Select operation mode by pressing the button. (Ventilator and Eco-V DX only) Ventilation unit / Eco-V DX : Heat exchange →Normal → Automatic Enter desired temperature setting mode by pressing the button. The desired temperature in window will blink. (This function is possible ON schedule only.) Select desired temperature by pressing the button.
  • Page 39 OWNER'S INSTRUCTION Group Schedule setting - While selecting group control mode, - If you set up the schedule in this condition, all indoor units of corresponding group will set the schedule simultaneously. NOTE • To cancel schedule reservation during setting, press button.
  • Page 40: Schedule Display

    Schedule caution During executing schedule(s), Indoor units doesn’t take any other command for several minutes (Remote controller and AC Ez may not operate normally during this period.) During the Blackout If a blackout lasts longer than 2 hours, the already set schedule will not be executed after the blackout.
  • Page 41: Flow Chart Of Schedule Deletion

    OWNER'S INSTRUCTION Flow chart of schedule deletion • Individual schedule deletion Press button shortly. Entry to schedule setting mode. : Select the day of week to delete the schedule. Select day of week Press button Schedule number : select schedule number to delete selection schedule (1~8) Press...
  • Page 42: Programming : Deletion Schedule(individual Schedule)

    OWNER'S INSTRUCTION Programming : Deletion schedule(Individual schedule) To delete only one schedule of one indoor unit Press button shortly to enter ‘schedule’ setting mode. The day of week will blink. Select desired day of schedule deletion by pressing the button. If desired day of week is selected, press the button to move to schedule setting mode.
  • Page 43: Programming : Deletion Individual Schedule(group Schedule)

    OWNER'S INSTRUCTION If desired day of schedule deletion is selected, press the button for 5 seconds to delete schedule of desired day. Corresponding schedule is deleted and it exits from schedule setting mode. Programming : Deletion individual schedule(Group Schedule) To delete only one schedule of one indoor unit Press button to select ‘group’...
  • Page 44: Programming : Deletion Schedule(day Schedule)

    OWNER'S INSTRUCTION Programming : Deletion schedule(Day schedule) This is function that uses to delete one day schedule of one indoor unit. Press button shortly to enter ‘schedule’ setting mode. The day of week will blink. Select desired day of schedule deletion by pressing the button.
  • Page 45: Programming : Deletion Day Schedule(group Schedule)

    OWNER'S INSTRUCTION Programming : Deletion day schedule(Group schedule) Press button to select ‘group’ setting mode. If you delete the schedule in this condition, corresponding group units will be deleted the schedule of corresponding day. NOTE • If you press button, it exits from schedule setting mode.
  • Page 46: Flow Chart For Individual Schedule Copy

    OWNER'S INSTRUCTION Flow chart for individual schedule copy • Schedule copy Press button shortly. Entry to schedule setting mode. Select day of week : select the day of week to set up the schedule. Press button Schedule number : select schedule number to selection set up schedule (1~8) Press...
  • Page 47: Programming : Schedule Copy(individual Schedule)

    OWNER'S INSTRUCTION Programming : schedule copy(Individual schedule) To apply a schedule to other days. (Example. To make the second schedule of Friday be same with the second schedule of Mon- day, use individual schedule copy/paste function) • Schedule copy Press button shortly to enter ‘schedule’...
  • Page 48 OWNER'S INSTRUCTION If desired day of schedule to copy is selected, press the button to copy sched- ule of desired day. Exit the schedule setting mode by pressing button. NOTE • If you press button, it exits from schedule setting mode.
  • Page 49 OWNER'S INSTRUCTION • Schedule paste Press button shortly to enter ‘schedule’ setting mode. The day of week will blink. Select desired day of schedule to paste by pressing the button. If desired day of the week is selected, press the button to enter to schedule time setting mode.
  • Page 50 OWNER'S INSTRUCTION If desired number of schedule day to paste is selected, press the button to paste the schedule number of desired day. Apply pasted schedule by pressing the button. It indicates set schedule of corresponding by displaying the border like Group individual schedule paste - While setting schedule copy, Before pasting copied individual schedule, If you select the group control mode, all indoor...
  • Page 51: Flow Chart For Day Schedule Copy

    OWNER'S INSTRUCTION Flow chart for day schedule copy • Day schedule copy Press button shortly. Entry to schedule setting mode. : select the day of week to set up Select day of week the schedule. Press button Corresponding schedule copy : select the day of week to set up Select day of week the schedule.
  • Page 52: Programming : Schdule Copy(day Schedule)

    OWNER'S INSTRUCTION Programming : Schdule copy(day schedule) To apply a schedule to other days (Example. To make the schedule of Friday be same with the schedule of Monday, use schedule copy/paste function.) Press button shortly to enter ‘schedule’ setting mode. The day of week will blink. Select desired day of schedule to copy by pressing the button.
  • Page 53 OWNER'S INSTRUCTION If desired day of schedule to paste is selected, press the button to paste copied schedule. Apply pasted schedule by pressing the button. It indicates set schedule of corresponding by displaying the border like Group day schedule paste - While setting schedule copy, Before pasting copied day schedule, If you select the group control mode, all indoor units of corresponding group will set the copied day schedule simultaneously.
  • Page 54: Flow Chart For Holiday Setting

    OWNER'S INSTRUCTION Flow chart for holiday setting • Holiday setting Press button shortly. Entry to schedule setting mode. : select the day of week to set up the schedule. Select day of week Press button Holiday setting : It is changed holiday set/clear condition by pressing button.
  • Page 55: Programming : Holiday Reservation

    OWNER'S INSTRUCTION Programming : Holiday reservation This function is to prevent from keeping air conditioners turned on 'holiday or Off day'. Icon is displayed at the day programmed as 'Holiday'. Press button shortly to enter ‘schedule’ setting mode. The day of week will blink. Select desired day to set holiday by pressing the button.
  • Page 56: Self-diagnosis Of Indoor Unit

    OWNER'S INSTRUCTION Self-diagnosis of indoor unit This function is to display when check code is received from corresponding unit. If corresponding indoor has some failure status, it indicates RED LED of individual on/off LED. A “ CH” or “xx” (number) is repeatedly displayed on the LCD to represent failure status code.

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