LG AC Ez Operating instructions

P/NO : MFL63284102
www.lg.com
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
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 1

2TIPS 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:
ENGLISH
• 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 con-
ditioner 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 :
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 2

SAFETY PRECAUTIONS 3
ENGLISH
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
• 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.
!
!
!
!
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 3

4SAFETY 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.
• Do not touch or pull the lead wire with wet hands.
It will cause product breakdown or electric shock.
!
ENGLISH
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 4

TABLE OF CONTENTS 5
ENGLISH
TABLE OF CONTENTS
2TIPS FOR SAVING EN-
ERGY
3SAFETY PRECAUTIONS
6INTRODUCTION
7INSTALLATION 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
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 5

6INSTALLATION INSTRUCTION
ENGLISH
AC Ez Controller
Back bracket
Screw
Manual Room name sheet
Bracket
Installation cableScrew 1EA
(For Fixing on the bracket)
Screw 4EA
(For Fixing on the wall)
Accessory
Features
INTRODUCTION
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 6

INSTALLATION INSTRUCTION 7
ENGLISH
INSTALLATION INSTRUCTION
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 reclama-
tion box if there is a reclamation box.
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.
- 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.
!
CAUTION
• It can crash on the floor by the impact, if
screw is not fixed.
!
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 7

8INSTALLATION INSTRUCTION
ENGLISH
To supply power to the central controller, supply it from the terminal block DC 10 V and GND ter-
minal of PI485 or the terminal block DC 12 V and GND of outdoor unit.
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.
• 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.
!
ON
L1 2 3 4
KSDO4H
PI485
Multi V
AC Ez PI485
VCC 10 V
GND GND
BUS-A BUS-A
BUS-B BUS-B
AC Ez Multi V
VCC 12 V
GND GND
BUS-A BUS-A
BUS-B BUS-B
Method to Connect cable
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 8

INSTALLATION INSTRUCTION 9
ENGLISH
02 03 . . . 0E 0F 0100
BUSB BUSA
Vcc GND BUSB BUSA
MAIN
PCB
A
B
Pl485
IDU connection
Central controller 1
Group Number : 0
Master
VCC
GND
BUSA
BUSB
02 03 . . . 0E 0F 0100
BUSB BUSA
Vcc GND INTB INTA
MAIN
PCB
A
B
IDU connection
Central controller 1
Group Number : 0
Master
VCC
GND
INTA
INTB
NOTE
!
AC Ez power should be inputted only one AC Ez from outdoor unit.
In case of independence installation of AC Ez
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 9

10 INSTALLATION INSTRUCTION
ENGLISH
02 03 . . . 0E 0F0100
12 13 . . . 1F1110
A
B
VCC
GND
INTA
INTB
A
B
VCC
GND
INTA
INTB
Vcc GND INTB INTA
Vcc GND INTB INTA
IDU connection
IDU connection
Central controller 1
Central controller 1
Group Number : 0
Master
Group Number : 1
Slave
MAIN
PCB
MAIN
PCB
02 03 . . . 0E 0F0100
12 13 . . . 1F1110
A
B
Pl485
VCC
GND
BUSA
BUSB
A
B
Pl485
VCC
GND
BUSA
BUSB
Vcc GND BUSB BUSA
Vcc GND BUSB BUSA
IDU connection
IDU connection
Central controller 1
Central controller 1
Group Number : 0
Master
Group Number : 1
Slave
MAIN
PCB
MAIN
PCB
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
(BUS topology).
In case of linkage installation of AC Ez
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 10

INSTALLATION INSTRUCTION 11
ENGLISH
Control panel
Display screen
Control panel Display screen Description
CControl select button : Adjusts selected indoor unit
range.
TTotal On/Off button : Turns the power on/off condi-
tion of selected indoor units.
IIndividual On/Off button : Turns the power on/off
condition of individual indoor unit.
GGroup selection button : Change control and display
group
LLock set/clear button : Turns the lock set/clear
RRoom temperature button : Display the room tem-
perature
OOperation mode button : Change operation mode of
air conditioner
VVentilation mode button : Change ventilation mode
of ventilator
FFan speed button : Change fan speed
Air flow button : Turns swing set/clear of air flow
Name and Function of AC Ez
Part description
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 11

12 INSTALLATION INSTRUCTION
Control panel
Display screen
Control panel Display screen Description
SSet temperature button : Change desired operation
temperature of air conditioner
Indoor select button : Select desired indoor unit to
control
FFunction setting button : Enter installation mode to
installation setup
CCurrent time setting button : Setup the current time
SSchedule setting button : Enter the schedule setup
mode to setup desired schedule
SSchedule copy button : Copy former set schedule
SSchedule paste button : Paste copied schedule
EEsc button : Cancel the changed content
OOK button : Setup the changed content
HHoliday setting button : Turns holiday schedule appli-
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 con-
nected.
Name and Function of AC Ez (Continued)
ENGLISH
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 12

INSTALLATION INSTRUCTION 13
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.
!
1If 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.
2When you enter the setting mode initially, function code is displayed and on/off led of
indoor #1 is blinking.
No. Function Code Value
1 Master/Slave Setting 1 : Master : Slave
M S
2Group 1 product Select 2Air conditioner / Ventilator
Group Number Setting 0~F : Group Address - : No use of this group
3Group 2 product Select 3Air conditioner / Ventilator
Group No. Setting 0~F : Group Address - : No use of this group
4Indoor units searching
(Master controller only) 4 Indoor unit searching
5 °C / °F setting 5 °C : Celsius
°F : Fahrenheit
Installer Setting Code Table
Installation setup mode _ How to enter installer setup mode
ENGLISH
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 13

14 INSTALLATION INSTRUCTION
ENGLISH
NOTE
!
In each installation mode, if you press the button, it is operated or saved current set-
ting condition.
If you press the button, it is returned before setting condition and exits from installa-
tion mode.
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
NO
Press button shortly
Press button shortly
Press button shortly
Flow chart for Installer setup mode
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 14

INSTALLATION INSTRUCTION 15
ENGLISH
NOTE
!
• After setting, if you press the button or it doesn’t have any button input for 20 sec-
onds, 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.
1If 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.
2When 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.
M S
Installation setup mode #1 _ Master/Slave setting
4Apply desired time setting by pressing the button.
After pressing button, corresponding setting condition is saved, or of
LCD stops blinking.
M S
3Select Master/Slave setting condition by pressing button.
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 15

This function is used for setting the product type and group number of group 1.
16 INSTALLATION INSTRUCTION
ENGLISH
Installation setup mode #2 _ Group 1 product Select & Group Number Setting
Product type
Group number
5Save 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 sec-
onds, 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.
3Select the product type of group 1 by pressing button.
4Select the group number of group 1 by pressing button.
1If 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.
2If 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.
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 16

This function is used for setting the product type and group number of group 2.
INSTALLATION INSTRUCTION 17
ENGLISH
NOTE
!
• After setting, if you press the button or it doesn’t have any button input for 20 sec-
onds, 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 setup mode #3 _ Group 2 product Select & Group Number Setting
Product type
Group number
5Save 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.
3Select the product type of group 2 by pressing button.
4Select the group number of group 2 by pressing button.
1If 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.
2If 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.
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 17

18 INSTALLATION INSTRUCTION
ENGLISH
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.
NOTE
!
• After setting, if you press the button or it doesn’t have any button input for 20 sec-
onds, 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 setup mode #4 _ Searching the Connected indoor unit (Master Only)
3After pressing button, searching the connected indoor unit starts.
individual on/off led is blinking by rotation and of LCD is blinking.
1If 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.
2If entering into searching mode of connected indoor unit by using button, it in-
dicates as picture below.
SEARCH
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 18

INSTALLATION INSTRUCTION 19
ENGLISH
To change temperature display type from Celsius to Fahrenheit and vise versa
Installation setup mode #5 _ Celsius/Fahrenheit Switching
➭➭
When entering the Celsius/Fahrenheit switching mode , it displays ’05’ and blinks ‘°C’
or ‘°F’ in LCD.
4Setup the selected temperature display method by pressing button.
After pressing button, corresponding setting is saved.
It displays set temperature display method on operation condition.
1If 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.
2If entering into Celsius/Fahrenheit switching mode by using button, it indicates
as picture below.
It shows on #5 of installation setup mode by blinking the on/off led of indoor #5.
3Select temperature display method either °C or °F by pressing button.
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 19

20 INSTALLATION INSTRUCTION
ENGLISH
Checking mode _ Confirmation the set group address
Ex) If you setup group number to “0” in installation mode, it displays group number to “1” in
normal group selection condition.
1Select 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.
2When pressing the button, it indicates connected indoor units by blinking corre-
sponding individual on/off led of connected indoor unit 5 times.
1 Select corresponding group to want to confirm the group number by pressing “GROUP SELECT”
button. When pressing “ GROUP SELECT ” button, Group 1 and Group 2 is changed in turn.
2Select “GROUP” selection of control selection mode by pressing button.
When selecting group selection mode, it displays “GROUP” icon of LCD and group
number of corresponding group in “88” seg of LCD
CThe group number displays group number + 1 of set corresponding
group in installation mode. (group number setting : 0~F, group number
display : 1~16)
Checking mode _ Confirmation of connected indoor unit
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 20