20
LG Air Conditioners 2013
21
Interface Device
Control Method
Objective/use
unit Name and Model
function
Parts
features
PI485
PMNFP14A0
To connect
Outdoor unit to
CNU or Simple
Central Controller
• RS485 Converter
with software
• For Max.16 Indoor
• PCB Assembly
• Bracket
• Lead wire: 3ea
• Screw 4EA
• Tie wrap
• Clamp
• Manual
• 1set/1 Outdoor
Dry Contact
PQDSA1/
PQDSB1
For connect
Indoor unit to
other Forced on/
off Controller
• RS485 Converter
with software
• PCB Assembly
• Top case
• Bottom case
• Screw
• Lead wire 3
• Sub PCB set
(1 le
1 sub PCB)
• Manual
• 1set/1 Indoor unit
• PQDSB1 (24V)
• PQDSA1 (24V)
Dry Contact
PQDSBC*
For connect
Indoor unit to
other Forced on/
off Controller
• Contact signal
to air-con signal
converter
• PCB Assembly
• Top/Bottom
case
• Screw
• Lead wire 3ea
• Sub PCB set
(1 le
1 sub PCB)
• Manual
• 1set/1 indoor unit
• 2 Contact points
• No need AC input
• Expected
temperature setting is
possible
BNu-LW
PQNFB16A1
To connect PI485
to LONWORKS
BMS system
• RS485 to LONWORKS
Protocol Converter
• Interface
Assembly
• 12V DC
adaptor
• Manual
• 64 Indoor units /
1BNU-LW
commission with
Web Access can be
install with simple
central controller
Control Method
Objective/use
unit Name and Model
function
Parts
features
BNu-BAC
PQNFB17B0
To connect PI485
to BACnet BMS
system
• RS485 to
BACnet protocol
converter
• Interface
Assembly
• 12V DC
adaptor
• Manual
• 256 Indoor units /
1 BNU-BAC
commission with Web
Access can be install
with simple central
controller Directly IP
Setting by using key &
LCD
PDI
PQNUD1S00
To Power
consumption
Distribution of
each indoor unit
• Accumulation of total
power consumption
• Indication of current
power in use
• Indication of
accumulated power for
period
• Indication of standby
power (option setting)
• PDI Assembly
Manual
• 1 PDI / 1 Outdoor
PDI Premium
PQNuD1S40
To power
consumption
distribution of
each indoor unit
• Accumulation of total
power
consumption
• Indication of current
power in use
• Indication of
accumulated power for
period
• Indication of standby
power
• Blackout protection
•PDI Assembly
manual
• 1 PDI / 8 Outdoor
1) PI485 : Product Interface unit for RS 485 transmission
Accessory
