LG BECON HVAC BACnet PQNFB17C0 Operating instructions

PQNFB17C0, CQNFB17C0, PQNFB17C1, PQNFB17C2
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.
INSTALLATION/OWNER’S MANUAL
AIR
CONDITIONER
P/NO : MFL67709501
www.lg.com
Copyright © 2012 - 2018 LG Electronics Inc. All Rights Reserved.
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EXPLANATORY NOTES
EXPLANATORY NOTES
Copyrights
The contents of this ACP BACnet User Guide are protected by international copyright laws, and the
Computer Program Protection Act. The contents of the User Guide and the programs mentioned
herein may only be used under license from LG Electronics in strict adherence to the user agreement.
You may not reproduce or distribute, by any means, copies of this User Guide, or any part of it,
without prior approval from LG Electronics.
Copyright © 2012 - 2018 LG Electronics Inc. All Rights Reserved.
Registered Trademarks
ACP BACnet is a registered trademark of LG Electronics. All other products and company names are
trademarks of their respective owners and are used for illustrative purposes only.

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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:
• 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.
Notes
The product images and descriptions included in this manual are stated based on ACP BACnet
Free volt (Model No.: PQNFB17C0).
yACP BACnet Free volt (PQNFB17C0)
yACP BACnet 24 V (PQNFB17C1, PQNFB17C2)
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 :

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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
yInstallation or repairs made by unqualified persons can result in hazards to you and others.
yInstallation MUST conform with local building codes or, in the absence of local codes, with the
National Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical Code
Part1 CSA C.22.1.
yThe 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.
yFailure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
Installation
yAny question about the product installation should be asked to the service center or the
professional installation agency.
-It may cause fire, electric shock, explosion or injury.
yConsult the service center or the professional installation agency about reinstalling the
installed product.
-It may cause fire, electric shock, explosion or injury.
yPlease use the standardized parts.
-It may cause fire, electric shock, explosion, injury, or failure.
yDo not keep or use combustible gas or inflammable material near the product.
-IT may cause fire or electric shock.
yDo not disassemble, repair or modify the product at random.
-It may cause failure of the product.
yDo not install where raindrop can fall.
-It may cause failure of the product.

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IMPORTANT SAFETY INSTRUCTIONS
yDo not install the product at wet place.
-It may cause failure of the product.
yProvided product and adaptor shall only be installed and used inside a building.
-It may cause fire or failure of the product.
*Do not install or use outside.
yInstall stably in a place that can endure the weight of the ACP BACnet.
-If the installation place is not strong enough, the ACP BACnet may fall and damaged.
yMake sure to enquire to the specialty store of the product purchase or service center for
electric works.
-It may cause fire or electric shock.
yDo not damage the power cord or bend it by force.
-It may cause fire or electric shock.
yYou need to use a safely insulated power supply which follows IEC61558-2-6 and NEC
Class2
-If you do not follow, It may cause fire, electric shock, explosion or injury.
yDo not connetion 220 V power to 24 V products
-If you do not follow, It may cause fire, electric shock, explosion or injury.
yDo not connect power cord to the control signal connector.
-It may cause fire or explosion.
yFix cables tightly when wiring power cord, communication wires and etc.
-Fire or electric shock accidents can occur if cables are loose.
yPrepare adequate protection equipment for noise when carrying out installation in places
like hospitals or communication base stations.
-The product can be broken or other products can work abnormally.
Operation
yDo not change or extend the power cord with your own discretion.
-It may cause fire or electric shock
yDo not place any heating device near the product.
-It may cause fire.
yDo not use any heating device near the power cord.
-It may cause fire or electric shock.
yDo not let water flow into the product.
-It may cause electric shock or failure.
yDo not put heavy weight on the power cord.
-It may cause fire or electric shock.

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IMPORTANT SAFETY INSTRUCTIONS
yDo not put heavy weight on the product.
-It may cause the failure of the product.
yIf the product is flooded, consult the service center or the professional installation agency.
-It may cause fire or electric shock.
yDo not give any shock to the product.
-Any shock to the product may cause failure.
yGrab the head of the plug of the power cord to pull when disconnecting the plug, and do
not click the plug with wet hands.
-It may cause fire or to deform the product.
yDo not use the product in certain environments as follows.
-If the product is used in a place with oil, steam, or sulfuric acid gas, performance may be de-
graded or product may be damaged.
yDo not press the switch or button with sharp objects.
-It may cause electric shock or failure of the product.
yPlease check the operation temperature.
-If the product is used in an environment with the temperature exceeding the operation bound-
ary, it may cause a severe damage.
Please check the usage temperature boundary in the manual. If there is no specified tempera-
ture, please use the product within the boundary of 0~40 °C.
yDo not click the switch with wet hand.
-It may cause electric shock or failure of the product.
yPlease read installation and user manual for connection with PC or peripheral devices.
-It may cause fire or failure of the product.
yIf a warning window appears on PC, product stops, or it does not work, immediately stop
the usage.
-It may cause fire or failure of the product.
yStop using the device if the product emits unusual sounds or smells.
-Fire or electric shock accident can occur.
yUse the product under adult supervision to prevent children from hanging on to the
product.
-The product could be damaged and children could be hurt if the installed product falls.
yDo not spray water directly on to product. Do not clean the product with a soaking wet
towel.
-Fire or electric shock accident can occur.
yDo not use the product for special purposes such as preservation of animals and plants,
precision instrument and art work.
-It can damage property.
yDiscard packing materials safely.
-Users can be injured by packing materials if they are not discarded safely.

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IMPORTANT SAFETY INSTRUCTIONS
CAUTION
Operation
yDo not use strong detergent such as solvent, but a soft cloth.
-It may cause fire or to deform the product.
yPlease check the rated capacity of the power.
-It may cause fire or failure of the product.
yTurn off the power when not in use for long periods of time or when there is thunder and
lightning.
-This can be a cause of electric shock and fire.
yDo not touch internal parts of the product.
-This can cause product failure.
yMake sure to check the condition of the product after using the product for a long time.
-Using the product for a long time can damage the product state and users could be injured when
using 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 supervision 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.
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.
• Transformer selection:
-Select an insulating product that complies with IEC61558-2-6 and NEC Class 2.
-In addition, consider the combined power consumption of the modules, accessories, and
field devices installed for the selection of an appropriate transformer.
Main module current: 24 V~, 850 mA
-Use the provided adaptor when using DC 12 V. The adaptor is not provided with the ACP
BACnet package sold in the U.S.

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TABLE OF CONTENTS
TABLE OF CONTENTS
1
ACP BACnet
FUNCTIONS AND
SPECIFICATION
1ACP BACnet Functions
3ACP BACnet Components
4Names of each part of ACP
BACnet
6ACP BACNET HARDWARE
SPECIFICATION
7
INSTALLING ACP
BACnet
7Installing ACP BACnet
9Check points during the ACP
BACnet installation
11 Setting the indoor unit address
14 Setting the PI485 and connecting
the cable
16 Installing ACP BACnet and
connecting cables
21 Setting the ACP BACnet network
address
32 Setting the functions of the ACP
BACnet
47
LG’S ACP BACnet
AGREEMENT
49
FUNCTIONAL
SPECIFICATIONS
ACP BACnet
87
NOTES
87 Troubleshooting
91 OPEN SOURCE SOFTWARE
NOTICE
92 BIBBs
99 Object Property Table
107 ACP-BACnet Error Response Table

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MEMO

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ACP BACnet FUNCTIONS AND SPECIFICATION
ACP BACnet FUNCTIONS AND
SPECIFICATION
ACP BACnet is the central controller that can manage up to 256 units in one space individually or as
combined. ACP BACnet can monitor or control units installed in each room of the building from the
places such as the management office of a building or the administration office of a school.
ACP BACnet Functions
Major functions of the ACP BACnet are as follows.
Environment setting function using the ACP BACnet external buttons ACP BACnet can use the
external buttons installed outside of the ACP BACnet to set the following functions.
• Set Network environment (IP address, Net mask, Gateway)
• Set the function to use between Peak/demand function
• SW upgrade function
• Data backup function
• Data recovery function
• RS-485 communication logging function
• Fahrenheit/Celsius setting function
• Device ID setting function
• Vnet number setting function
• Foreign Device register function
PQNFB17C0
PQNFB17C0

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ACP BACnet FUNCTIONS AND SPECIFICATION
Embedded web server function
window using Internet Explorer, the central control program in ACP BACnet web server is
automatically run, and the functions of various contents can be used.
PQNFB17C0
Local Area Network
Internet
Explorer
• Controlling of up to 256 air conditioner indoor units (ACS I/O Interlocking on version 4.0.0 or
later : Control up to 128 indoor units and 16 I/O modules)
• Monitoring of error and operation status
• Controlling the peak power / demand power
• System setting function
Devices that can interface with ACP BACnet
Device ACP BACnet
(less than version 4.0.0)
ACP BACnet
(version 4.0.0 or later)
AC Ez O O
Simple Central Controller O O
AC Smart O X
AC Smart IV X O
AC Manager O X
AC Manager IV X O
Air Conditioner O O
ERV O O
AWHP O O
Remote Shutdown O O
Demand Controller O O
Chiller X X
AHU O O
ACS I/O X O

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ACP BACnet FUNCTIONS AND SPECIFICATION
ACP BACnet Components
Inside the packaged box of the ACP BACnet, there are the components as in the following drawing.
Open the packaged box of the ACP BACnet, and check if all of the corresponding components are
included.
PQNFB17C0
ACP BACnet
Power Supply Adaptor
Input: 100-240 V~
50/60 Hz, 1.2 A
Output: DC 12 V
3.33 A, 40 W MAX
Power Cord
250 V~, 3 A
*** Screw
Manual
Notes
Power Supply Adaptor and Power Cord are not included in PQNFB17C1, PQNFB17C2.
*** North America model requires 24 V~ external power supply.
(Select an insulating transformer that complies with IEC61558-2-6 and NEC Class 2.)

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ACP BACnet FUNCTIONS AND SPECIFICATION
Names of each part of ACP BACnet
ACP BACnet is composed as follows.
PQNFB17C0
PQNFB17C0
A B A B A B A B A B A B + - + -
①
⑨ ⑩ ⑪
② ④③
⑥
⑦ ⑧
⑤
Notes
②and ③may be different for each model.

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ACP BACnet FUNCTIONS AND SPECIFICATION
Number Item Description
①Cover Front cover of the ACP BACnet
②Adaptor connection jack Jack for DC 12 V to connect to the power supply adaptor
(not supported by PQNFB17C1, PQNFB17C2)
③Power port 24 V~ port for power connection (not supported by PQN-
FB17C0)
④ Buttons and LCD Buttons and LCD to set network environment and to dis-
play other information
⑤
Optional input/output
and RS-485 communi-
cation port
10 DI’s & 4 DO’s are available to connect external I/O.
CH5 & CH6 are Modbus Channels (Not used in US)
⑥RS-485 communication
port
RS-485 communication ports to connect to air conditioner
and ERV equipment (4 in total)
⑦Mini USB port USB to Serial port for software debugging
⑧USB port For software update and data backup
⑨Power switch Switch to turn on or off the power of the ACP BACnet
⑩Ethernet port Ethernet port to connect to internet and AC Manager (AC
Manager IV on version 4.0.0 or later)
⑪SD card slot For RS-485 communication data backup.
Caution
Use the designated parts when connected to a power source.
yConnector manufacturers: PHOENIX CONTACT
PartNo: MVSTBR 2,5 / 2-ST-5, 08 2P 5.00 mm

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ACP BACnet FUNCTIONS AND SPECIFICATION
ACP BACNET HARDWARE SPECIFICATION
ACP BACNET HARDWARE SPECIFICATION IS AS FOLLOWS.
Category Description
Boundary of usage temperature 0 °C ~ 40 °C (32 °F ~ 104 °F)
Rated Voltage DC 12 V & 24 V~ Depending on Model
Rated Current Max 2.3 A
Communication ports
yEthernet 10 / 100 BASE-T
yUSB : USB Host (SW upgrade, data backup)
mini USB Device (Debug)
yRS-485 communication ports 6EA
ySD card slot (RS-485 communication logging)
External input/output ports DI, DO
LED 27EA (RS communication status, Ethernet communication
status, power status, operation status)
LCD 20 ×4 Character-LCD (network environment setting and
information display)
Notes
License policy
This product follows GPL (General Public License) for the use of Embedded Linux.

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INSTALLING ACP BACnet
INSTALLING ACP BACnet
Installing ACP BACnet
This chapter describes how to install the ACP BACnet to use.
In order to use the ACP BACnet, the installation should be performed by the following order.
STEP 1. Check the cautions during the ACP BACnet installation
Before installing the ACP BACnet, check the cautions.
STEP 2. Study the cable connections diagram of the entire system
Study the cable connection diagram of the site where the ACP BACnet is installed.
STEP 3. Set the indoor unit address
Do not duplicate IDU addresses.
STEP 4. Set PI485 and connect cables
Set DIP switch of PI485 correctly, and connect RS-485 communication cable.
STEP 5. Install ACP BACnet and connect cables
Install the ACP BACnet, and set network and other settings.
STEP 6. Set ACP BACnet network address
Set the network address to be able to access the ACP BACnet via local ethernet subnet.
S T E P 7. Set ACP BACnet functions
Set language, peak/demand, etc.
STEP 8. Set User Interface access environment
Set the Network Environment.
STEP 9. Input indoor unit and ERV information
Create database of Indoor Units, etc.
STEP 10. Verify and check ACP BACnet installation
Verify and check whether the ACP BACnet is properly installed.

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INSTALLING ACP BACnet
Caution
Installing the ACP BACnet
yThe ACP BACnet installation should be performed by the certified installation professional.
yConsult the service center or the professional installation agency certified by us about any
question or request related to the installation.

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INSTALLING ACP BACnet
Check points during the ACP BACnet installation
• The number of PI485 connected to one RS-485 communication line
-ACP BACnet provides 4 RS-485 ports for indoor unit connection. (CH 1~4)
-Up to 16 PI485 for outdoor unit can be connected to one RS-485 port, and up to 31 PI485 for
SINGLE/ERV can be connected.
• The number of the indoor units that can be connected to one ACP BACnet
(ACS I/O Interlocking is available on version 4.0.0 or later.)
One ACP BACnet can be connected up to 256 indoor units. With ACS I/O interlocking, you
can connect 128 indoor units and 16 I/O modules. To one RS-485 port, all of 256 indoor units,
which is the maximum number that can be connected to the ACP BACnet, may be connected
but communication latency will increase. But, to improve the communication performance of
RS-485, it is recommended to be divided and connected to 4 ports.
The maximum quantity of connected indoor unit is different depending on the quantity of
connected I/O modules.
Quantity of I/
O Module
Quantity of
Device
0256
1248
2240
3232
4224
5216
6208
7200
8192
9184
10 176
11 168
12 160
13 152
14 144
15 136
16 128
256
128
16
* Devices: Indoor units, ERV, DI/DOs, DOKITs, AWHPs, AHUs
Quantity of
Device
Quantity of I/O Module

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INSTALLING ACP BACnet
• RS-485 communication cable connection
-There is a polarity in RS-485 communication cable connection, so be careful not to reverse
the connection of the two cables.
-Do not let the length of RS-485 communication cable exceed total of 1 km.
-RS-485 communication cable must be connected with BUS type.
• IP address of the ACP BACnet
-IP address of the ACP BACnet, address of Gateway, and Net mask must be requested to the
person in charge of the network of the corresponding site.
Caution
RS-485 Connection of the ERV equipment
To connect ERV equipment, it is recommended to use the ports other than RS-485
communication ports which are connected to air conditioners.