Multi F Four-Way Ceiling Cassette Service Manual
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Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 2 Functions & Controls
[Note]
○ : Applied, × : Not applied
* Option : Model name & price are different according to options, and assembled in factory with main unit.
Accessory model name : Installed at field, ordered and purchased separately by the corresponding model name, sup-
plied with separate package.
• Outdoor
Category Functions Remark
Reliability
Defrost / Deicing O
High pressure switch X
Low pressure switch X
Phase protection X
Restart delay (3-minutes) O
Self diagnosis O
Soft start O
Test function X
Convenience Night Silent Operation O
Network function Network solution(LGAP) O
1.2 List of Accessory
Device Remark
Central Controller 
Simple Controller  X
Function controller  X
Function Scheduler  X
AC Ez  PQCSZ250S0 
AC Smart ll  PQCSW320A1E 
Option Kit (SD card type)  PQCSE341A0 / PQCSE342A0 
ACP(Advanced Control Platform)  PQCPA11A0E / PQCPB11A0E 
AC Manager  X
PI485 PMNFP14A0/PMNFP14A1 
DO(Digital Output) Kit  PQNFP00T0 
BNU LONWORKS Gateway  PQNFB16A1 
(Building Network Unit)  BACnet Gateway  PQNFB17B0 
Installation 
Y branch  Accessory 
Header branch  Accessory 
Air Guide  X 
ODU Dry Contact  X 
Low Ambient Kit  O (Logical operation) 










