LG PSNFP14A0 User manual

LG
PI485 GATEWAY
INSTALLATION MANUAL
LG
Model: PSNFP14A0
IMPORTANT
• 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.
For use with ERV product in USA and select other LG Products
that do not have on-board LGAP communications module.

2485 Gateway(M)
Central Control Unit Use & Care Manual
TABLE OF CONTENTS
Safety Precautions......................................................................................................3
Part Descriptions......................................................................................5
Installation Guide ....................................................................................6
Accessory Parts ......................................................................................10

Safety Precautions
Installation Manual 3
Do not touch touch the
product with your hands
while electricity is on.
There is a risk of re or electric
shock if you touch the product
with your hands while the
electricity is on.
Use standard
parts(connector).
Do not disassemble or repair
the product. There is risk of re
or electric shock.
For electrical work, contact
the dealer, seller, a qualied
electrician, or an authorized
service center.
Do not disassemble or repair
the product. There is risk of re
or electric shock.
Installation
ON
L1 2 3 4
KSDO4H
ON
L12 3 4
KSDH
4
O
ON
L1 23 4
H4
OD
SK
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
Incorrect operation due to ignoring instructions will cause harm or damage. The seriousness is
classied by the following indications.
Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or product damage.
Do not complete the action.
Be sure to follow the instruction.
WARNING

Safety Precautions
4485 Gateway(M)
When the product is soaked (ooded or
submerged), contact an authorized service
center.
There is risk of re or electric shock.
Be cautious, water should not enter the
product.
There is risk of re, electric shock, or product
damage.
ON
L21 3
4
KSDO4H
ON
L12
3
4
KD
SO4H
Operation
Use the correctly rated
breaker or fuse.
There is a risk of re or electric
shock if the correctly rated
breaker or fuse is not used.
Do not install, remove, or re-
install the unit by yourself
(customer).
There is risk of re, electric
shock, explosion, or injury.
For installation, always
contact the dealer or an
authorized service center.
ON
L3
2
14
KSDH
4
O
ON
1L 2 3 4
SKDH
4O
ON
L1 2 3 4
KSDO4H
There is risk of re, electric
shock, explosion, or injury.

5485 Gateway(M)
Part Description
PSNFP14A0
PI485 GATEWAY(R)
CN_OUT: Indoor Unit Connector
BUS_A: RS-485 (+) Terminal
BUS_B: RS-485 (-) Terminal
LED01G,02G,03G: Communication Status LED
LED1: RS-485 Communication Status LED
Reset Switch: PI485(C) Reset
DIP Switch: Product Select (Refer to page 7)
NO
L1 2 3 4
1
2
3
5
7
6
4
1
2
3
4
5
6
7

Installation Manual 6
Installation Guide
Installation Steps
1. Select DIP Switch Conguration (Refer to page 7)
2. Connect The RS-485 BUS_A(+), BUS_B(-) with other network products (ex. Simple
Central Controller , CNU, etc.)
3. Using the provided cable, connect CN_OUT with outdoor unit
4. Check the Communication Status LED
- LED01G(Red): Ok operation - The LED blinks 5 times and is OFF.
This process is repeated every 3 minutes
• NG operation : Check the indoor unit address and wiring connections
- LED02G(Yellow), LED03G(Orange): Ok operation- The LEDs blink continuously
• NG operation : Check the DIP Switch setting and wiring connections
5. Check the RS-485 Communication Status LED:
Ok operation
(1) If connected to a CNU, LEDs blink 2 times every 10~30 seconds
(2) If connected to a simple central controller, LEDs blink continuously
NG operation : Check the wiring connections
6. If the above steps are Ok, tie the cables using tie wraps and clamp
Installation Guide
1
7
4
5
23

Installation Guide
Installation Manual 7
ON KSDO 4H
L1 2 3 4
Switch 3
Select Product Type
ON
L1 2 3 4
ON KSDO4H
ON KSDO4H
L1 2 3 4
L1 2 3 4
1 OFF, 2 OFF, 3 ON, 4 OFF: LGAP CAC/RAC/SRAC/PAC Products + Central
controller (all types) - without LGAP
1 OFF, 2 OFF, 3 ON, 4 ON: LGAP CAC/RAC/SRAC/PAC Products + Central
controller (all types) - using LGAP
Using LGAP CAC/RAC/SRAC/PAC Products Conguration Methods
CAUTION:
Incorrect product conguration will lead to product malfunction.
Switch 4
Select Network Type
Example of All O
Raised portion (darker area) of switch
is downward next to number

Installation Guide
Installation Manual 8
Indoor Main PCB
AC Smart Premium
INT B
INT A
Indoor Main PCB
CN_CC
CN_CC
PI485 GATEWAY
NO
4
3
21L
NO
4
32
1L
CAUTION:
After product installation, secure the wiring with tie wraps (provided).
AB
AHU
AB
(RS485)
ODU
AC Smart Premium

Installation Guide
Installation Manual 9
Installation Example
CAUTION:
Installation instructions may dier based on the product.
Installation for ducted units

10 485 Gateway(M)
Accessories
Accessories
NO
4321L
PCB :6871A20484C
Connector for use with ERV Connector for other product
Screws (4 EA) Installation Manual
Other Included Items: Tie Wrap (3 EA) - Cable Tie Clamp (1 EA)