LG PQCSZ250S0 User guide

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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

INSTALLATION/ OWNER’S MANUAL

AIR CONDITIONER

ENGLISH ITALIANO ESPAÑOL FRANCAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

PORTUGUESE РУССКИЙ ЯЗЫК NEDERLANDS

P/NO : MFL63284102

ENGLISH

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:

TIPS FOR SAVING ENERGY

• Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

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.

• The following safety cautions are provided to prevent unexpected dangers or losses.

WARNING

If the user does not follow the mandatory items, it may result in serious injury or death.

CAUTION

If the user does not follow the mandatory items, it may cause personal injury or property damage.

WARNING/CAUTION

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• Warning and Caution are to call the user’s attention to the possible danger. Read and follow them carefully in order to prevent a safety accident.

• Warning and Caution are indicated in this guide and the product itself to help protect the users from danger.

WARNING

Installation

• Be sure to request to the service center or installation specialty store when installing products. It will cause fire or electric shock or explosion or injury.

•

Request to the service center or installation specialty store when reinstalling the installed product. It will cause fire or electric shock or explosion or injury.

• Do not disassemble, fix, and modify products randomly. It will cause fire or electric shock.

In-use

• Do not place flammable stuffs close to the product. It will cause fire.

• Do not allow water to run into the product. It will cause electric shock or breakdown.

• Do not give the shock to the product. It will cause breakdown when giving the shock to the product.

• Request to the service center or installation specialty store when the product becomes wet. It will cause fire or electric shock.

• Do not give the shock using sharp and pointed objects. It will cause breakdown by damaging parts.

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In-use

SAFETY PRECAUTIONS

CAUTION

• 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.

• Do not touch or pull the lead wire with wet hands. It will cause product breakdown or electric shock.

TABLE OF CONTENTS

ENGLISH

2 TIPS FOR SAVING EN-

ERGY

3 SAFETY PRECAUTIONS

6 INTRODUCTION

7 INSTALLATION INSTRUC-

TION

8 Method to Connect cable 9 In case of independence installation of

AC Ez 10 In case of linkage installation of AC Ez 11 Part description 11 Name and Function of AC Ez 12 Name and Function of AC Ez (Contin-

ued) 13 Installation setup mode _ How to enter

installer setup mode 13 Installer Setting Code Table 14 Flow chart for Installer setup mode 15 Installation setup mode #1 _

Master/Slave setting 16 Installation setup mode #2 _ Group 1

product Select & Group Number Setting 17 Installation setup mode #3 _ Group 2

product Select & Group Number Setting 18 Installation setup mode #4 _ Searching

the Connected indoor unit (Master Only) 19 Installation setup mode #5 _

Celsius/Fahrenheit Switching 20 Checking mode _ Conﬁrmation of con-

nected indoor unit 20 Checking mode _ Conﬁrmation the set

group address

21 OWNER'S INSTRUCTION

21 Group selection 21 Control range selection 22 Individual unit operation 23 Group operation 24 All operation (Master AC Ez only) 25 Air-conditioner operation mode setting 26 Ventilation mode setting 27 Desired temperature setting 28 Fan speed setting 29 Air ﬂow direction setting 30 Lock setting 31 Flow chart for current time setting 32 Changing current time 34 Flow chart for schedule setting 35 Schedule reservation 40 Schedule display 40 Schedule Priority 40 Schedule caution 41 Flow chart of schedule deletion 42 Programming : Deletion schedule(Indi-

vidual schedule)

43 Programming : Deletion individual

schedule(Group Schedule)

44 Programming : Deletion schedule(Day

schedule)

45 Programming : Deletion day

schedule(Group schedule) 46 Flow chart for individual schedule copy 47 Programming : schedule copy(Individual

schedule) 51 Flow chart for day schedule copy 52 Programming : Schdule copy(day sched-

ule) 54 Flow chart for holiday setting 55 Programming : Holiday reservation 56 Self-diagnosis of indoor unit

AC Ez Controller

Back bracket

Screw

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INTRODUCTION

INSTALLATION INSTRUCTION

Features

Accessory

Screw 4EA

(For Fixing on the wall)

Manual Room name sheetBracket

Installation cableScrew 1EA

(For Fixing on the bracket)

INSTALLATION INSTRUCTION

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After locating AC Ez installation Bracket at the desired location, screw the unit firmly.

- Set it up not to bend because poor setup could take place if setup board bends.

- Set remote controller board to the reclamation box if there is a reclamation box.

- In case of no reclamation to the surface of the wall : Use the right part guide groove.

Fix it by using screw provided at the lower part tightly after wet it up the bracket.

CAUTION

• Use the screws provided.

Set up AC Ez cable in suitable connection method.

- In case of reclamation to the surface of the wall : Use the cable hole of bracket.

CAUTION

• It can crash on the floor by the impact, if screw is not fixed.

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To supply power to the central controller, supply it from the terminal block DC 10 V and GND terminal of PI485 or the terminal block DC 12 V and GND of outdoor unit.

INSTALLATION INSTRUCTION

Method to Connect cable

AC Ez PI485

VCC 10 V

GND GND BUS-A BUS-A BUS-B BUS-B

L1 2 3 4

KSDO4H

PI485

AC Ez Multi V

VCC 12 V

GND GND BUS-A BUS-A BUS-B BUS-B

Multi V

CAUTION

• For supplying DC10 V power from PI485, power supply is permitted up to 1 central controllers 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.

• Use the 0.75 Square Shield wires for connection wires between PI485 and AC Ez wires.

• Length of whole connection wires should be less than 1km.

In case of independence installation of AC Ez

INSTALLATION INSTRUCTION

ENGLISH

MAIN

PCB

A B

Pl485

VCC

GND BUSA BUSB

IDU connection

Vcc GND BUSB BUSA

02 03

BUSB BUSA

. . .

0E 0F0100

Master Group Number : 0

. . .

0E 0F

A B

IDU connection

Central controller 1

0100

02 03

MAIN

PCB

VCC

GND

INTA INTB

Vcc GND INTB INTA

BUSB BUSA

Central controller 1

NOTE

AC Ez power should be inputted only one AC Ez from outdoor unit.

Master Group Number : 0

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INSTALLATION INSTRUCTION

In case of linkage installation of AC Ez

MAIN

PCB

MAIN

PCB

A B

Pl485

VCC

GND BUSA BUSB

IDU connection

Vcc GND BUSB BUSA

02 03

. . .

0E 0F0100

Master

Central controller 1

A B

Pl485

VCC

GND BUSA BUSB

IDU connection

Vcc GND BUSB BUSA

12 13

Group Number : 0

. . .

1F1110

Slave

Central controller 1

Group Number : 1

MAIN

PCB

MAIN

PCB

NOTE

VCC

GND INTA INTB

VCC GND INTA INTB

A B

IDU connection

Vcc GND INTB INTA

02 03

. . .

0E 0F0100

Master

Central controller 1

A B

IDU connection

Vcc GND INTB INTA

12 13

Group Number : 0

. . .

1F1110

Slave

Central controller 1

Group Number : 1

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 (BUS topology).

INSTALLATION INSTRUCTION

Control select button

Total On/Off button

Individual On/Off button

Group selection button

Lock set/clear button

Room temperature button

Operation mode button

Ventilation mode button

Fan speed button

Air flow button

Part description

Name and Function of AC Ez

Display screen

Control panel

Control panel Display screen Description

ENGLISH

C range.

T tion of selected indoor units.

I condition of individual indoor unit.

G group

R perature

O air conditioner

V of ventilator

: Adjusts selected indoor unit

: Turns the power on/off condi-

: Turns the power on/off

: Change control and display

: Turns the lock set/clear

: Display the room tem-

: Change operation mode of

: Change ventilation mode

: Change fan speed

: Turns swing set/clear of air flow

Set temperature button

Indoor select button

Function setting button

Current time setting button

Schedule setting button

Schedule copy button

Schedule paste button

Esc button

OK button

Holiday setting button

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INSTALLATION INSTRUCTION

Name and Function of AC Ez (Continued)

Display screen

Control panel

Control panel Display screen Description

S temperature of air conditioner

I control

F installation setup

S mode to setup desired schedule

: Change desired operation

: Select desired indoor unit to

: Enter installation mode to

: Setup the current time

: Enter the schedule setup

: Copy former set schedule

: Paste copied schedule

H cation set/clear

- Some functions may not be operated and displayed depending on the product type.

- It will display undesirable value to the room temperature if wired remote controller is not connected.

: Cancel the changed content

: Setup the changed content

: Turns holiday schedule appli-

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. This must be set by an certificated installer, and any installation or change that is carried out by a non-certified, user should be responsible for the results. In this case, free service cannot be provided.

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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.

2 When you enter the setting mode initially, function code is displayed and on/off led of

indoor #1 is blinking.

Installer Setting Code Table

No. Function Code Value

1 Master/Slave Setting 1

Group 1 product Select

Group Number Setting 0~F : Group Address - : No use of this group Group 2 product Select

Group No. Setting 0~F : Group Address - : No use of this group Indoor units searching

(Master controller only)

5 °C / °F setting 5

4 Indoor unit searching

M S

: Master : Slave

Air conditioner / Ventilator

°C : Celsius °F : Fahrenheit

Enter installation

mode #1

(Master/Slave setting)

Enter installation

mode #2

(Group 1 setting)

Enter installation

mode #3

(Group 2 setting)

Enter installation

mode #4

(Connected indoor unit setting)

Enter installation

mode #5

(Changing °C/°F)

: Master/Slave setting

: ‘Group 1

’ product setting

(Air conditioner or Ventilator)

Press button shortly

: ‘Group 1 ’ Group number setting

: ‘

Group 2’ product setting

(Air conditioner or Ventilator)

: ‘Group 2’ Group number setting

Is it set with Master?

Press button for 5 seconds.

: Temperature display setting (°C/°F)

Entry Installation mode

YES

Press button shortly

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INSTALLATION INSTRUCTION

Flow chart for Installer setup mode

NOTE

In each installation mode, if you press the button, it is operated or saved current setting condition.

If you press the button, it is returned before setting condition and exits from installation mode.

INSTALLATION INSTRUCTION

Installation setup mode #1 _ Master/Slave setting

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.

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2 When entering the Master/Slave setting mode, it displays ’01’ and blinks or

in LCD. It shows on #1 of setup mode by blinking the on/off led of indoor #1.

3 Select Master/Slave setting condition by pressing button.

4 Apply desired time setting by pressing the button.

After pressing button, corresponding setting condition is saved, or of LCD stops blinking.

NOTE

M S

• After setting, if you press the button or it doesn’t have any button input for 20 seconds, it exits from installation mode automatically.

• If you exit installation mode without pressing button, changed value don’t apply.

• If you press individual on/off button of corresponding installation mode to change, you can

enter corresponding installation mode directly.

ENGLISH

This function is used for setting the product type and group number of group 1.

INSTALLATION INSTRUCTION

Installation setup mode #2 _ Group 1 product Select & Group Number Setting

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.

2 If entering into product and group number setup mode of group 1 by using but-

ton, it indicates as picture below. It shows on #2 of setup mode by blinking the on/off led of indoor #2.

Product type Group number

3 Select the product type of group 1 by pressing button.

4 Select the group number of group 1 by pressing button.

5 Save the product type and group number of group 1 by pressing button.

After pressing button, corresponding setting condition is saved, group type and group number stops blinking.

NOTE

• After setting, if you press the button or it doesn’t have any button input for 20 seconds, it exits from installation mode automatically.

• If you exit installation mode without pressing button, changed value don’t apply.

• If you press individual on/off button of corresponding installation mode to change, you can

enter corresponding installation mode directly.

INSTALLATION INSTRUCTION

Installation setup mode #3 _ Group 2 product Select & Group Number Setting

This function is used for setting the product type and group number of group 2.

ENGLISH

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.

2 If entering into product and group number setup mode of group 2 by using

button, it indicates as picture below. It shows on #3 of setup mode by blinking the on/off led of indoor #3.

Product type Group number

3 Select the product type of group 2 by pressing button.

4 Select the group number of group 2 by pressing button.

5 Save the product type and group number of group 2 by pressing button.

After pressing button, corresponding setting condition is saved, group type and group number stops blinking.

NOTE

• After setting, if you press the button or it doesn’t have any button input for 20 seconds, it exits from installation mode automatically.

• If you exit installation mode without pressing button, changed value don’t apply.

• If you press individual on/off button of corresponding installation mode to change, you can

enter corresponding installation mode directly.

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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. If you don’t do it before, it might not search the connected indoor unit normally.

INSTALLATION INSTRUCTION

Installation setup mode #4 _ Searching the Connected indoor unit (Master Only)

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.

2 If entering into searching mode of connected indoor unit by using button, it in-

dicates as picture below.

3 After pressing button, searching the connected indoor unit starts.

individual on/off led is blinking by rotation and of LCD is blinking.

NOTE

• After setting, if you press the button or it doesn’t have any button input for 20 seconds, it exits from installation mode automatically.

• If you exit installation mode without pressing button, changed value don’t apply.

• If you press individual on/off button of corresponding installation mode to change, you can

enter corresponding installation mode directly.

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