LG PDI Premium PQNUD1S40 Operating instructions

P/NO : MFL67982913
INSTALLATION/OWNER’S MANUAL
PDI Premium
PQNUD1S40
AIR
CONDITIONER
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.
ENGLISH ITALIANO

2TIPS FOR SAVING ENERGY
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:
• 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 :

IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product
WARNING
It can result in serious injury or death when the directions are ignored
CAUTION
It can result in minor injury or product damage when the directions are ignored
WARNING
• Installation or repairs made by unqualified persons can result in hazards to you and others.
• Installation work must be performed in accordance with the National Electric Code by quali-
fied and authorized personnel only.
• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment mal-
function, property damage, personal injury and/or death.
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.
!
!
!
!
3
ENGLISH

4IMPORTANT SAFETY INSTRUCTIONS
ENGLISH
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.
!
Disposal of your old appliance
1When this crossed-out wheeled bin symbol is attached to a product it
means the product is covered by the European Directive 2002/96/EC.
2All electrical and electronic products should be disposed of separately
from the municipal waste stream via designated collection facilities ap-
pointed by the government or the local authorities.
3The correct disposal of your old appliance will help prevent potential
negative consequences for the environment and human health.
4For more detailed information about disposal of your old appliance,
please contact your city office, waste disposal service or the shop
where you purchased the product.
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. Chil-
dren should be supervised to ensure that they do not play with the appliance.
According to EN 60335-1
This appliance can be used by children aged from 8 years and above and person with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.)

TABLE OF CONTENTS 5
TABLE OF CONTENTS
2TIPS FOR SAVING EN-
ERGY
3IMPORTANT SAFETY IN-
STRUCTIONS
6NAME OF EACH PART
7COMPONENTS
8INSTALLATION METHOD
8Diagram of overall product configura-
tion
10 How to wire the product
11 Wiring
13 SETTING AND USING
METHOD
13 Glossary
14 Setting
16 Setting up detailed functions
19 How to Use PDI
21 Operating condition display
ENGLISH

6NAME OF EACH PART
ENGLISH
NAME OF EACH PART
①Front cover
②LED display Displays current status of PDI
③Menu button Use for checking initial setting and electric power
④LCD display Displays setting information and power usage
⑤SELECT button Use for initial setting
⑥Direction button Use for checking initial setting and electric power
⑦Power supply Supply power for PDI
ھPower supply
ڸFront cover
ڹLED display
ںMenu button
ڻLCD display
ڼSELECT button
ڹLED display
ڽDirection button
POWER WHM
ODU
WHM
CHECK
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK

COMPONENTS 7
ENGLISH
COMPONENTS
155.0 mm
270.0 mm 120.0 mm
155.0 mm
POWER WHM
ODU
MENU
SELECT
WHM
CHECK
PQNUD1S40
PDI (Accumulated sum indicator) Power supply
Front cover
10 screws (M4X12mm)
POWER WHM
ODU
WHM
CHECK
Manual

8INSTALLATION METHOD
ENGLISH
INSTALLATION METHOD
Diagram of overall product configuration
• Independent Operation without Central Controller
Flow Meter
ROOM
ROOM
Flow Meter
Water
Pulse
Signal
Pulse
Signal
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
Pulse signal wire
Water pipe
CAUTION
• Use the meter for remote reading by sending the pulse signal.
• Use the meter with the pulse width of 50 ms or more.
• The meter pulse must be able to sink at least 3 mA or more of current in the PDI.
• Use the meter of 1/Pulse, 2/Pulse, 4/Pulse, 6/Pulse, 8/Pulse, 10/Pulse, 100/Pulse, UT/Pr
(1 – 50 000).
• Maximum of 8 meters can be installed.
• The distance between PDI and meter should be shorter than 10 m in normal circumstance.
• When electrical or mechanical noise is expected, more shorter wiring is needed.
!

INSTALLATION METHOD 9
ENGLISH
• Interlocked Operation with Central Controller
Flow Meter
ROOM
ROOM
Flow Meter
Water
Pulse
Signal
RS485
(LGAP)
Pulse
Signal
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
Communication cable (2 wire shielded cable): Between PDI and central controller.
Pulse signal wire
Water pipe
CAUTION
• Use the meter for remote reading by sending the pulse signal.
• Use the meter with the pulse width of 50 ms or more.
• The meter pulse must be able to sink at least 3 mA or more of current in the PDI.
• Use the meter of 1/Pulse, 2/Pulse, 4/Pulse, 6/Pulse, 8/Pulse, 10/Pulse, 100/Pulse, UT/Pr
(1 – 50 000).
• Maximum of 8 meters can be installed.
• The distance between PDI and meter should be shorter than 10 m in normal circumstance.
• When electrical or mechanical noise is expected, more shorter wiring is needed.
!

10 INSTALLATION METHOD
ENGLISH
How to wire the product
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
Connection of pulse
type meter system
Connect to central controller
485 communication cable
24 V~ power is supplied
for power supply device
Wiring PDI
220-240 V~
LN
24 V~
220-240 V~ power cable connection terminal
Grounding cable connection terminal
Fixing clamp
24 V~ power cable connection terminal
Wiring Power Supply
CAUTION
• Power must be turned on after the product is wired completely.
!

INSTALLATION METHOD 11
ENGLISH
Wiring
• Separate the power supply case.
• Loosen the clamp fixating the power supply.
• Connect the 220-240 V~ power cable to the black and grounding terminal.
• Connect the 24 V~ power cable to the yellow terminal.
• Use the clamp to fixate the 220-240 V~ and 24 V~ power cable.
• Use the screw to assemble the case.
• Use the included screws to fixate the PDI and power supply at appropriate locations within the
electric panel.
• Connect the 24 V~ power cable connected to the power supply to the power terminal of the
PDI.
• Wire wattmeter, gas meter, central controlled communication cable.
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
220-240 V~
Power connection
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
Mounting on wall
CAUTION
• Power must be turned on after the product is wired completely.
!
WARNING
• Always tighten the terminal screws so that they do not
become loose.
• When connecting the power and communication cable,
always use the terminal (O-Ring, Y-Ring).
• For 220-240 V~ power cable, use (CV) 1.5 mm2x 3
and for 24 V~ power cable, use the CV wire.
!

12 INSTALLATION METHOD
ENGLISH
Connect the meter and communication cable
ᵄᵄᵄ
CAUTION
1. Please read the manual carefully, before using the product.
2. The installation requires expert skills, and it should be installed by the
service or other shops specialized in the installation and recognized by
our company.
3. For all the problems arising after installation by someone who has no
relevant qualifications, our company will not provide free service
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
Pulse type meter
Central Controller
Pulse type meter
CAUTION
1. Please read the manual carefully, before using the product.
2. The installation requires expert skills, and it should be installed by the
service or other shops specialized in the installation and recognized by
our company.
3. For all the problems arising after installation by someone who has no
relevant qualifications, our company will not provide free service
CAUTION
• The color and polarity of the signal wire may be different from the details indicated on the
case depending on the manufacturer of meter. [Black: (-), white: (+)]
• When connecting the 485 communication cable, make sure to check the A, B polarity.
• After connecting the meter, check whether the signal is connected through the LED.
• PDI and Pulse type meter must be installed in the same panel.
!

SETTING AND USING METHOD 13
ENGLISH
SETTING AND USING METHOD
Glossary
• EHP (Electric Heat Pump)
It is an electric air conditioner to drive the compressor by electric power.
• GHP (Gas engine Heat Pump)
GHP is a gas air conditioner to drive the compressor with LNG and LPG gas as a heat source
and power supply for gas engine.
• GENERAL PULSE : accumulated sum indication function
• WHM: wattmeter
• LHM: gas meter
• GPM : the meter for accumulated sum only
• ODU: Outdoor Unit
• IDU: Indoor Unit
• NOT USE: setting as disabled
• UT : unit adjustment device
• Pr: gauge integer

14 SETTING AND USING METHOD
ENGLISH
• If entering the setting screen for the first time.
- After turning power on, press the ‘MENU’
button and the ‘SELECT’ button at the same
time and the screen will change to the screen
where you can select the product connection
type. Select the product type to connect, and
then press the ‘SELECT’ button.
Then, the selection of the product will be
saved and the screen will be switched to the
main standby screen.
Setting
Description of button function
Enter function setting mode
- Menu button: Move to standby screen after setting is completed. Use for reading meter
- Direction button: Move to item to set
- SELECT button: Enter applicable setting window and set changed information
POWER WHM
PQNUD1S40
ODU
MENU
SELECT
WHM
CHECK
<Connecton Product Type Setting Screen>
P R O D U C T T Y P E
1 . E H P
2 . G H P
3 . G E N E R A L P U L S E
SELECT
MENU

SETTING AND USING METHOD 15
ENGLISH
• If after selecting the connection product type at least once, you are entering the setting
screen.
- After turning power on, press the ‘MENU’ button and the ‘SELECT’ button at the same
time and then will be switched to the function setting screen.
• The item with letters blinking is the current setting location on the function setting screen.
❈If you want to change the connection type of product
- On the function setting screen, press the (▲) button and (▼) button simultaneously, and then
you can enter the connected product type setting screen.
<Main standby screen> <Function setting screen>
P U L S E M E T E R
I N D I C A T O R
G P M 1 : N O T U S E
G P M 2 : N O T U S E
G P M 3 : N O T U S E
G P M 4 : N O T U S E
CAUTION
• PDI setting only can be changed during the 20 minutes after turning on the power.
20 minutes later, if you need to change settings, turn the PDI on again.
!

16 SETTING AND USING METHOD
ENGLISH
Setting up detailed functions
Flowchart for how to set up functions
While GENERAL PULSE product is selected, set the detailed functions of the PDI with reference
to the flowchart below
P U L S E M E T E R
I N D I C A T O R
‘MENU’ button + ‘SELECT’ button
<Set power consumption per pulse>
▼ Button
‘SELECT’
button
‘SELECT’
button
‘SELECT’
button
* G P M / P U L S E S E L E C T *
1. N O T U S E
2. 1 / P U L S E
3. 2 / P U L S E
4. 4 / P U L S E
5. 6 / P U L S E
6. 8 / P U L S E
7. 10 / P U L S E
8. 100 / P U L S E
9. U T & P r
M E T E R I N G U N I T S E L E C T
1. W
2. L
3. E A
G P M 1 : N O T U S E
G P M 2 : N O T U S E
G P M 3 : N O T U S E
G P M 4 : N O T U S E
G P M 5 : N O T U S E
G P M 6 : N O T U S E
G P M 7 : N O T U S E
G P M 8 : N O T U S E
<Set metering unit of meter>
‘SELECT’
button
I N D O O R A D D R E S S S E T
( S T A R T ) →( E N D )
( 0 0 ) →( 0 0 )
<Set the connected meter address>
‘SELECT’
button
CAUTION
• PDI setting only can be changed during the 20 minutes after turning on the power.
20 minutes later, if you need to change settings, turn the PDI on again.
!

SETTING AND USING METHOD 17
ENGLISH
• Meter property setting: Based on the meter type setting, it automatically switches to property
setting screen.
- Pulse type : Set power consumption per pulse, set metering unit(W/L/EA), set meter address
- UT type : Set UT and Pr value, set metering unit(W/L/EA), set meter address
• When setting pulse type
When the meter item to set flashes, press the SE-
LECT button to change the detail setting window.
It proceeds in the order of Set power consumption
per pulse →Set metering unit of meter →Set
connected meter address
- Set power consumption per pulse (GPM /PULSE
SELECT)
: Enter the value displayed on the meter as
power consumption per pulse
- Set metering unit of meter (METERING UNIT SE-
LECT)
: Set unit among W(Watt), L(Liter) and EA(the
number of pulse)
- Set connected meter address (INDOOR AD-
DRESS SET)
: Enter the meter address connected to meter
After setting the applicable item, press the ‘SE-
LECT’ button to save the setting and move to the
next stage.
Set information is reflected to the detail setting
window.
After setting all meters, press the MENU button to save the setting and move to the initial
screen.
G P M 1 : N O T U S E
G P M 2 : N O T U S E
G P M 3 : N O T U S E
G P M 4 : N O T U S E
* G P M / P U L S E S E L E C T *
1. N O T U S E
2. 1 / P U L S E
3. 2 / P U L S E
G P M 1 : 1 W , G P M , 0 0 - 0 0
G P M 2 : N O T U S E
G P M 3 : N O T U S E
G P M 4 : N O T U S E
M E T E R I N G U N I T S E L E C T
1. W
2. L
3. E A
I N D O O R A D D R E S S S E T
( S T A R T ) →( E N D )
( 0 0 ) →( 0 0 )
Setting detailed properties

18 SETTING AND USING METHOD
ENGLISH
• When setting UT type
Press the (▼) button to set UT&Pr from the power
consumption setting screen per pulse
When 9. UT&Pr item flashes, press the SELECT
button to enter UT&Pr input window.
Example) If you want to use 1000 l / pulse meter,
Pr is set to a 1 with UT: 1.
- Set connected meter address (INDOOR AD-
DRESS SET)
: Enter the meter address connected to meter
After setting the applicable item, press the ‘SE-
LECT’ button to save the setting and move to the
next stage.
Set information is reflected to the detail setting
window.
It proceeds in the order of Set UT and Pr value →
Set metering unit of meter →Set connected
meter address
- Set UT type (UT & PULSE SELECT).
: You may set a value of gas meter per pulse as
UT & Pr is set.
- Set metering unit of meter (METERING UNIT SE-
LECT)
: Set unit among W(Watt), L(Liter) and EA(the
number of pulse)
* G P M / P U L S E S E L E C T *
1. N O T U S E
2. 1 / P U L S E
3. 2 / P U L S E
* G P M / P U L S E S E L E C T *
7. 10 / P U L S E
8. 100 / P U L S E
9. U T & P r
G P M 1 : U T & P r , G P M , 0 0 - 0 0
G P M 2 : N O T U S E
G P M 3 : N O T U S E
G P M 4 : N O T U S E
U T & P U L S E R A T I O S E T
U T : 0 0 0 0 1 , P r : 0 0 0 0 1
[ P U L S E = 1 0 0 0 * U T / P r ]
M E T E R I N G U N I T S E L E C T
1. W
2. L
3. E A
I N D O O R A D D R E S S S E T
( S T A R T ) →( E N D )
( 0 0 ) →( 0 0 )
After setting all meters, press the MENU button to save the setting and move to the initial
screen.
If UT = P1, Pr = P2,
* unit per pulse = P1* (l/ Pulse)
1000
P2

SETTING AND USING METHOD 19
ENGLISH
How to Use PDI
Description of PDI function
Checking electric energy display
The PDI is the product that provide the function of displaying the accumulated sum.
- Number of units that can be interlocked : Maximum of 8 meters.
- LCD accumulated sum display function : Instant value, cumulative value are displayed through
the LCD.
- LED Display function : When power, communication or pulse is connected, the applicable LED
flashes so that the operation can be checked.
The accumulated sum can be checked by pressing the MENU button from the default screen to
check in the order of instantaneous value and accumulative value.
I N S T A N T W ( 1 )
I D – 0 1 :
0 W
0 W
I N S T A N T W ( 1 )
I D – 0 1 :
0 L
0 L
I N S T A N T W ( 1 )
I D – 0 1 :
0 E A
0 E A
A C C U M ( W 1 )
I D – 0 1 :
0.0 k W h
0.0 k W h
A C C U M ( W 1 )
I D – 0 1 :
0.0 k L
0.0 k L
A C C U M ( W 1 )
I D – 0 1 :
0.0 k E A
0.0 k E A
P U L S E M E T E R
I N D I C A T O R
Menu Button
Menu Button Menu Button Menu Button
Menu Button Menu Button Menu Button
Metering Unit : W Metering Unit : L Metering Unit : EA

20 SETTING AND USING METHOD
ENGLISH
• Checking instantaneous value
Instantaneous value : As the accumulated sum per minute, it is refreshed every 1 minute.
- Screen Description
- Press the LEFT/RIGHT (◀,▶) button to increase/decrease the meter number.
Meter number
Instantaneous power of W(1) meter
I N S T A N T W ( 1 )
I D – 0 1 :
0 W
0 W
• Checking accumulative value
Accumulative value : After the value is initially connected to the PDI, the values are accumu-
lated.
If the displayed accumulated sum is 999 999 or above, it will return to 0.
• Screen Description
- Press the LEFT/RIGHT (◀,▶) button to increase/decrease the meter number.
Meter number
Accumulated value of W(1) meter
A C C U M W ( 1 )
I D – 0 1 :
0.0 k W h
0.0 k W h